diff options
author | cvs2svn <> | 2006-03-21 03:57:35 +0300 |
---|---|---|
committer | cvs2svn <> | 2006-03-21 03:57:35 +0300 |
commit | f84325d0899e5052fd59892ece265f7c2bd6c6a7 (patch) | |
tree | fdbea2e5c834b2c023ecd6f1f15ea1474186a4e1 /winsup/cygwin/thread.cc | |
parent | 3078fb4f360e44b436bafcd9e7c51f26792e34b4 (diff) |
This commit was manufactured by cvs2svn to create branch 'newlib-newlib-csl-20060320-branchpoint
csl-20060320-branch'.
Sprout from master 2006-03-21 00:57:34 UTC Mark Mitchell <mark@codesourcery.com> ' * acconfig.h (_ATEXIT_DYNAMIC_ALLOC): Undef.'
Cherrypick from cygnus 1999-05-03 07:29:06 UTC Richard Henderson <rth@redhat.com> '19990502 sourceware import':
README
config/mh-armpic
config/mh-elfalphapic
config/mh-m68kpic
config/mh-papic
config/mh-ppcpic
config/mh-x86pic
config/mt-d30v
config/mt-netware
config/mt-ospace
etc/add-log.el
etc/add-log.vi
etc/configbuild.ein
etc/configbuild.fig
etc/configbuild.jin
etc/configbuild.tin
etc/configdev.ein
etc/configdev.fig
etc/configdev.jin
etc/configdev.tin
etc/configure
etc/configure.in
makefile.vms
Delete:
compile
djunpack.bat
include/COPYING
include/ChangeLog
include/ChangeLog-9103
include/MAINTAINERS
include/alloca-conf.h
include/ansidecl.h
include/aout/ChangeLog
include/aout/adobe.h
include/aout/aout64.h
include/aout/ar.h
include/aout/dynix3.h
include/aout/encap.h
include/aout/host.h
include/aout/hp.h
include/aout/hp300hpux.h
include/aout/hppa.h
include/aout/ranlib.h
include/aout/reloc.h
include/aout/stab.def
include/aout/stab_gnu.h
include/aout/sun4.h
include/bfdlink.h
include/bin-bugs.h
include/bout.h
include/coff/ChangeLog
include/coff/ChangeLog-9103
include/coff/alpha.h
include/coff/apollo.h
include/coff/arm.h
include/coff/aux-coff.h
include/coff/ecoff.h
include/coff/external.h
include/coff/go32exe.h
include/coff/h8300.h
include/coff/h8500.h
include/coff/i386.h
include/coff/i860.h
include/coff/i960.h
include/coff/ia64.h
include/coff/internal.h
include/coff/m68k.h
include/coff/m88k.h
include/coff/maxq.h
include/coff/mcore.h
include/coff/mips.h
include/coff/mipspe.h
include/coff/or32.h
include/coff/pe.h
include/coff/powerpc.h
include/coff/rs6000.h
include/coff/rs6k64.h
include/coff/sh.h
include/coff/sparc.h
include/coff/sym.h
include/coff/symconst.h
include/coff/ti.h
include/coff/tic30.h
include/coff/tic4x.h
include/coff/tic54x.h
include/coff/tic80.h
include/coff/w65.h
include/coff/we32k.h
include/coff/xcoff.h
include/coff/z80.h
include/coff/z8k.h
include/demangle.h
include/dis-asm.h
include/dyn-string.h
include/elf/ChangeLog
include/elf/ChangeLog-9103
include/elf/alpha.h
include/elf/arc.h
include/elf/arm.h
include/elf/avr.h
include/elf/bfin.h
include/elf/common.h
include/elf/cr16c.h
include/elf/cris.h
include/elf/crx.h
include/elf/d10v.h
include/elf/d30v.h
include/elf/dlx.h
include/elf/dwarf.h
include/elf/dwarf2.h
include/elf/external.h
include/elf/fr30.h
include/elf/frv.h
include/elf/h8.h
include/elf/hppa.h
include/elf/i370.h
include/elf/i386.h
include/elf/i860.h
include/elf/i960.h
include/elf/ia64.h
include/elf/internal.h
include/elf/ip2k.h
include/elf/iq2000.h
include/elf/m32c.h
include/elf/m32r.h
include/elf/m68hc11.h
include/elf/m68k.h
include/elf/mcore.h
include/elf/mips.h
include/elf/mmix.h
include/elf/mn10200.h
include/elf/mn10300.h
include/elf/msp430.h
include/elf/mt.h
include/elf/openrisc.h
include/elf/or32.h
include/elf/pj.h
include/elf/ppc.h
include/elf/ppc64.h
include/elf/reloc-macros.h
include/elf/s390.h
include/elf/sh.h
include/elf/sparc.h
include/elf/v850.h
include/elf/vax.h
include/elf/x86-64.h
include/elf/xc16x.h
include/elf/xstormy16.h
include/elf/xtensa.h
include/fibheap.h
include/filenames.h
include/floatformat.h
include/fnmatch.h
include/fopen-bin.h
include/fopen-same.h
include/fopen-vms.h
include/gdb/ChangeLog
include/gdb/callback.h
include/gdb/fileio.h
include/gdb/remote-sim.h
include/gdb/signals.h
include/gdb/sim-arm.h
include/gdb/sim-d10v.h
include/gdb/sim-frv.h
include/gdb/sim-h8300.h
include/gdb/sim-m32c.h
include/gdb/sim-ppc.h
include/gdb/sim-sh.h
include/gdbm.h
include/getopt.h
include/hashtab.h
include/hp-symtab.h
include/ieee.h
include/libiberty.h
include/md5.h
include/nlm/ChangeLog
include/nlm/alpha-ext.h
include/nlm/common.h
include/nlm/external.h
include/nlm/i386-ext.h
include/nlm/internal.h
include/nlm/ppc-ext.h
include/nlm/sparc32-ext.h
include/oasys.h
include/objalloc.h
include/obstack.h
include/opcode/ChangeLog
include/opcode/ChangeLog-9103
include/opcode/alpha.h
include/opcode/arc.h
include/opcode/arm.h
include/opcode/avr.h
include/opcode/bfin.h
include/opcode/cgen-bitset.h
include/opcode/cgen.h
include/opcode/convex.h
include/opcode/cris.h
include/opcode/crx.h
include/opcode/d10v.h
include/opcode/d30v.h
include/opcode/dlx.h
include/opcode/h8300.h
include/opcode/hppa.h
include/opcode/i370.h
include/opcode/i386.h
include/opcode/i860.h
include/opcode/i960.h
include/opcode/ia64.h
include/opcode/m68hc11.h
include/opcode/m68k.h
include/opcode/m88k.h
include/opcode/maxq.h
include/opcode/mips.h
include/opcode/mmix.h
include/opcode/mn10200.h
include/opcode/mn10300.h
include/opcode/msp430.h
include/opcode/np1.h
include/opcode/ns32k.h
include/opcode/or32.h
include/opcode/pdp11.h
include/opcode/pj.h
include/opcode/pn.h
include/opcode/ppc.h
include/opcode/pyr.h
include/opcode/s390.h
include/opcode/sparc.h
include/opcode/tahoe.h
include/opcode/tic30.h
include/opcode/tic4x.h
include/opcode/tic54x.h
include/opcode/tic80.h
include/opcode/v850.h
include/opcode/vax.h
include/os9k.h
include/partition.h
include/progress.h
include/safe-ctype.h
include/sort.h
include/splay-tree.h
include/symcat.h
include/ternary.h
include/xregex.h
include/xregex2.h
include/xtensa-config.h
include/xtensa-isa-internal.h
include/xtensa-isa.h
winsup/COPYING
winsup/CYGWIN_LICENSE
winsup/ChangeLog
winsup/Makefile.common
winsup/Makefile.in
winsup/README
winsup/configure
winsup/configure.in
winsup/cygserver/ChangeLog
winsup/cygserver/Makefile.in
winsup/cygserver/README
winsup/cygserver/bsd_helper.cc
winsup/cygserver/bsd_helper.h
winsup/cygserver/bsd_log.cc
winsup/cygserver/bsd_log.h
winsup/cygserver/bsd_mutex.cc
winsup/cygserver/bsd_mutex.h
winsup/cygserver/client.cc
winsup/cygserver/configure
winsup/cygserver/configure.in
winsup/cygserver/cygserver-config
winsup/cygserver/cygserver.cc
winsup/cygserver/cygserver.conf
winsup/cygserver/msg.cc
winsup/cygserver/process.cc
winsup/cygserver/process.h
winsup/cygserver/sem.cc
winsup/cygserver/shm.cc
winsup/cygserver/sysv_msg.cc
winsup/cygserver/sysv_sem.cc
winsup/cygserver/sysv_shm.cc
winsup/cygserver/threaded_queue.cc
winsup/cygserver/threaded_queue.h
winsup/cygserver/transport.cc
winsup/cygserver/transport.h
winsup/cygserver/transport_pipes.cc
winsup/cygserver/transport_pipes.h
winsup/cygserver/transport_sockets.cc
winsup/cygserver/transport_sockets.h
winsup/cygserver/wincap.cc
winsup/cygserver/wincap.h
winsup/cygserver/woutsup.h
winsup/cygwin/CYGWIN_LICENSE
winsup/cygwin/ChangeLog
winsup/cygwin/ChangeLog-1995
winsup/cygwin/ChangeLog-1996
winsup/cygwin/ChangeLog-1997
winsup/cygwin/ChangeLog-1998
winsup/cygwin/ChangeLog-1999
winsup/cygwin/ChangeLog-2000
winsup/cygwin/ChangeLog-2001
winsup/cygwin/ChangeLog-2002
winsup/cygwin/ChangeLog-2003
winsup/cygwin/ChangeLog-2004
winsup/cygwin/ChangeLog-2005
winsup/cygwin/Makefile.in
winsup/cygwin/ROADMAP
winsup/cygwin/acconfig.h
winsup/cygwin/analyze_sigfe
winsup/cygwin/ansi.sgml
winsup/cygwin/assert.cc
winsup/cygwin/autoload.cc
winsup/cygwin/automode.c
winsup/cygwin/binmode.c
winsup/cygwin/child_info.h
winsup/cygwin/config.h.in
winsup/cygwin/config/i386/profile.h
winsup/cygwin/configure
winsup/cygwin/configure.in
winsup/cygwin/cpuid.h
winsup/cygwin/crt0.c
winsup/cygwin/ctype.cc
winsup/cygwin/cxx.cc
winsup/cygwin/cygerrno.h
winsup/cygwin/cygheap.cc
winsup/cygwin/cygheap.h
winsup/cygwin/cygmagic
winsup/cygwin/cygmalloc.h
winsup/cygwin/cygserver.h
winsup/cygwin/cygserver_ipc.h
winsup/cygwin/cygserver_msg.h
winsup/cygwin/cygserver_sem.h
winsup/cygwin/cygserver_shm.h
winsup/cygwin/cygthread.cc
winsup/cygwin/cygthread.h
winsup/cygwin/cygtls.cc
winsup/cygwin/cygtls.h
winsup/cygwin/cygwin-shilka
winsup/cygwin/cygwin.din
winsup/cygwin/cygwin.sc
winsup/cygwin/cygwin_version.h
winsup/cygwin/dcrt0.cc
winsup/cygwin/debug.cc
winsup/cygwin/debug.h
winsup/cygwin/delqueue.cc
winsup/cygwin/devices.cc
winsup/cygwin/devices.h
winsup/cygwin/devices.in
winsup/cygwin/dir.cc
winsup/cygwin/dlfcn.cc
winsup/cygwin/dll_init.cc
winsup/cygwin/dll_init.h
winsup/cygwin/dll_init.sgml
winsup/cygwin/dllfixdbg
winsup/cygwin/dlmalloc.c
winsup/cygwin/dlmalloc.h
winsup/cygwin/dtable.cc
winsup/cygwin/dtable.h
winsup/cygwin/dtable.sgml
winsup/cygwin/environ.cc
winsup/cygwin/environ.h
winsup/cygwin/errno.cc
winsup/cygwin/exceptions.cc
winsup/cygwin/exec.cc
winsup/cygwin/external.cc
winsup/cygwin/external.sgml
winsup/cygwin/fcntl.cc
winsup/cygwin/fhandler.cc
winsup/cygwin/fhandler.h
winsup/cygwin/fhandler_clipboard.cc
winsup/cygwin/fhandler_console.cc
winsup/cygwin/fhandler_disk_file.cc
winsup/cygwin/fhandler_dsp.cc
winsup/cygwin/fhandler_fifo.cc
winsup/cygwin/fhandler_floppy.cc
winsup/cygwin/fhandler_mailslot.cc
winsup/cygwin/fhandler_mem.cc
winsup/cygwin/fhandler_netdrive.cc
winsup/cygwin/fhandler_nodevice.cc
winsup/cygwin/fhandler_proc.cc
winsup/cygwin/fhandler_process.cc
winsup/cygwin/fhandler_random.cc
winsup/cygwin/fhandler_raw.cc
winsup/cygwin/fhandler_registry.cc
winsup/cygwin/fhandler_serial.cc
winsup/cygwin/fhandler_socket.cc
winsup/cygwin/fhandler_tape.cc
winsup/cygwin/fhandler_termios.cc
winsup/cygwin/fhandler_tty.cc
winsup/cygwin/fhandler_virtual.cc
winsup/cygwin/fhandler_windows.cc
winsup/cygwin/fhandler_zero.cc
winsup/cygwin/flock.cc
winsup/cygwin/fork.cc
winsup/cygwin/gcrt0.c
winsup/cygwin/gendef
winsup/cygwin/gendevices
winsup/cygwin/gentls_offsets
winsup/cygwin/glob.c
winsup/cygwin/gmon.c
winsup/cygwin/gmon.h
winsup/cygwin/grp.cc
winsup/cygwin/heap.cc
winsup/cygwin/heap.h
winsup/cygwin/hires.h
winsup/cygwin/hookapi.cc
winsup/cygwin/how-autoload-works.txt
winsup/cygwin/how-cygheap-works.txt
winsup/cygwin/how-cygtls-works.txt
winsup/cygwin/how-fhandlers-work.txt
winsup/cygwin/how-signals-work.txt
winsup/cygwin/how-spawn-works.txt
winsup/cygwin/how-to-debug-cygwin.txt
winsup/cygwin/how-vfork-works.txt
winsup/cygwin/include/a.out.h
winsup/cygwin/include/arpa/ftp.h
winsup/cygwin/include/arpa/inet.h
winsup/cygwin/include/arpa/telnet.h
winsup/cygwin/include/asm/byteorder.h
winsup/cygwin/include/asm/socket.h
winsup/cygwin/include/asm/types.h
winsup/cygwin/include/byteswap.h
winsup/cygwin/include/ctype.h
winsup/cygwin/include/cygwin/_types.h
winsup/cygwin/include/cygwin/acl.h
winsup/cygwin/include/cygwin/config.h
winsup/cygwin/include/cygwin/core_dump.h
winsup/cygwin/include/cygwin/cygwin_dll.h
winsup/cygwin/include/cygwin/fs.h
winsup/cygwin/include/cygwin/grp.h
winsup/cygwin/include/cygwin/hdreg.h
winsup/cygwin/include/cygwin/icmp.h
winsup/cygwin/include/cygwin/if.h
winsup/cygwin/include/cygwin/in.h
winsup/cygwin/include/cygwin/in_systm.h
winsup/cygwin/include/cygwin/ipc.h
winsup/cygwin/include/cygwin/msg.h
winsup/cygwin/include/cygwin/mtio.h
winsup/cygwin/include/cygwin/rdevio.h
winsup/cygwin/include/cygwin/sem.h
winsup/cygwin/include/cygwin/shm.h
winsup/cygwin/include/cygwin/signal.h
winsup/cygwin/include/cygwin/socket.h
winsup/cygwin/include/cygwin/sockios.h
winsup/cygwin/include/cygwin/stat.h
winsup/cygwin/include/cygwin/stdlib.h
winsup/cygwin/include/cygwin/sys_time.h
winsup/cygwin/include/cygwin/sysproto.h
winsup/cygwin/include/cygwin/time.h
winsup/cygwin/include/cygwin/types.h
winsup/cygwin/include/cygwin/uio.h
winsup/cygwin/include/cygwin/utmp.h
winsup/cygwin/include/cygwin/version.h
winsup/cygwin/include/dlfcn.h
winsup/cygwin/include/elf.h
winsup/cygwin/include/endian.h
winsup/cygwin/include/err.h
winsup/cygwin/include/exceptions.h
winsup/cygwin/include/fcntl.h
winsup/cygwin/include/features.h
winsup/cygwin/include/fnmatch.h
winsup/cygwin/include/fts.h
winsup/cygwin/include/ftw.h
winsup/cygwin/include/getopt.h
winsup/cygwin/include/glob.h
winsup/cygwin/include/icmp.h
winsup/cygwin/include/inttypes.h
winsup/cygwin/include/io.h
winsup/cygwin/include/lastlog.h
winsup/cygwin/include/libgen.h
winsup/cygwin/include/limits.h
winsup/cygwin/include/machine/stdlib.h
winsup/cygwin/include/mapi.h
winsup/cygwin/include/memory.h
winsup/cygwin/include/mntent.h
winsup/cygwin/include/net/if.h
winsup/cygwin/include/netdb.h
winsup/cygwin/include/netinet/in.h
winsup/cygwin/include/netinet/in_systm.h
winsup/cygwin/include/netinet/ip.h
winsup/cygwin/include/netinet/ip_icmp.h
winsup/cygwin/include/netinet/tcp.h
winsup/cygwin/include/netinet/udp.h
winsup/cygwin/include/paths.h
winsup/cygwin/include/poll.h
winsup/cygwin/include/pthread.h
winsup/cygwin/include/pty.h
winsup/cygwin/include/sched.h
winsup/cygwin/include/search.h
winsup/cygwin/include/semaphore.h
winsup/cygwin/include/stdint.h
winsup/cygwin/include/strings.h
winsup/cygwin/include/sys/acl.h
winsup/cygwin/include/sys/cdefs.h
winsup/cygwin/include/sys/copying.dj
winsup/cygwin/include/sys/cygwin.h
winsup/cygwin/include/sys/dirent.h
winsup/cygwin/include/sys/elf32.h
winsup/cygwin/include/sys/elf64.h
winsup/cygwin/include/sys/elf_common.h
winsup/cygwin/include/sys/elf_generic.h
winsup/cygwin/include/sys/file.h
winsup/cygwin/include/sys/ioctl.h
winsup/cygwin/include/sys/ipc.h
winsup/cygwin/include/sys/lock.h
winsup/cygwin/include/sys/mman.h
winsup/cygwin/include/sys/mount.h
winsup/cygwin/include/sys/msg.h
winsup/cygwin/include/sys/mtio.h
winsup/cygwin/include/sys/param.h
winsup/cygwin/include/sys/poll.h
winsup/cygwin/include/sys/procfs.h
winsup/cygwin/include/sys/queue.h
winsup/cygwin/include/sys/resource.h
winsup/cygwin/include/sys/select.h
winsup/cygwin/include/sys/sem.h
winsup/cygwin/include/sys/shm.h
winsup/cygwin/include/sys/smallprint.h
winsup/cygwin/include/sys/socket.h
winsup/cygwin/include/sys/soundcard.h
winsup/cygwin/include/sys/statfs.h
winsup/cygwin/include/sys/statvfs.h
winsup/cygwin/include/sys/stdio.h
winsup/cygwin/include/sys/strace.h
winsup/cygwin/include/sys/syslog.h
winsup/cygwin/include/sys/sysmacros.h
winsup/cygwin/include/sys/sysproto.h
winsup/cygwin/include/sys/termio.h
winsup/cygwin/include/sys/termios.h
winsup/cygwin/include/sys/ttychars.h
winsup/cygwin/include/sys/uio.h
winsup/cygwin/include/sys/un.h
winsup/cygwin/include/sys/utime.h
winsup/cygwin/include/sys/utmp.h
winsup/cygwin/include/sys/utsname.h
winsup/cygwin/include/sys/vfs.h
winsup/cygwin/include/sys/wait.h
winsup/cygwin/include/sysexits.h
winsup/cygwin/include/syslog.h
winsup/cygwin/include/termio.h
winsup/cygwin/include/tzfile.h
winsup/cygwin/include/utmpx.h
winsup/cygwin/init.cc
winsup/cygwin/ioctl.cc
winsup/cygwin/ipc.cc
winsup/cygwin/lib/_cygwin_crt0_common.cc
winsup/cygwin/lib/crt0.h
winsup/cygwin/lib/cygwin_attach_dll.c
winsup/cygwin/lib/cygwin_crt0.c
winsup/cygwin/lib/dll_entry.c
winsup/cygwin/lib/dll_main.cc
winsup/cygwin/lib/libcmain.c
winsup/cygwin/lib/premain0.c
winsup/cygwin/lib/premain1.c
winsup/cygwin/lib/premain2.c
winsup/cygwin/lib/premain3.c
winsup/cygwin/lib/pseudo-reloc.c
winsup/cygwin/libc/bsdlib.cc
winsup/cygwin/libc/fnmatch.c
winsup/cygwin/libc/fts.c
winsup/cygwin/libc/ftw.c
winsup/cygwin/libc/getopt.c
winsup/cygwin/libc/iruserok.c
winsup/cygwin/libc/memmem.cc
winsup/cygwin/libc/nftw.c
winsup/cygwin/libc/strptime.cc
winsup/cygwin/libc/timelocal.cc
winsup/cygwin/libc/timelocal.h
winsup/cygwin/localtime.cc
winsup/cygwin/lsearch.cc
winsup/cygwin/malloc.cc
winsup/cygwin/malloc_wrapper.cc
winsup/cygwin/mcount.c
winsup/cygwin/misc-std.sgml
winsup/cygwin/miscfuncs.cc
winsup/cygwin/mktemp.cc
winsup/cygwin/mkvers.sh
winsup/cygwin/mmap.cc
winsup/cygwin/msg.cc
winsup/cygwin/mtinfo.h
winsup/cygwin/net.cc
winsup/cygwin/netdb.cc
winsup/cygwin/newsym
winsup/cygwin/ntdll.h
winsup/cygwin/ntea.cc
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winsup/utils/aclocal.m4
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winsup/utils/configure.in
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winsup/w32api/lib/dnsapi.def
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winsup/w32api/lib/mswsock.def
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winsup/w32api/lib/nddeapi.def
winsup/w32api/lib/netapi32.def
winsup/w32api/lib/ntdll.def
winsup/w32api/lib/odbc32.def
winsup/w32api/lib/odbccp32.def
winsup/w32api/lib/ole32.def
winsup/w32api/lib/oleacc.def
winsup/w32api/lib/oleaut32.def
winsup/w32api/lib/olecli32.def
winsup/w32api/lib/oledlg.def
winsup/w32api/lib/olepro32.def
winsup/w32api/lib/olesvr32.def
winsup/w32api/lib/opengl32.def
winsup/w32api/lib/penwin32.def
winsup/w32api/lib/pkpd32.def
winsup/w32api/lib/powrprof.def
winsup/w32api/lib/psapi.def
winsup/w32api/lib/rapi.def
winsup/w32api/lib/rasapi32.def
winsup/w32api/lib/rasdlg.def
winsup/w32api/lib/res.rc
winsup/w32api/lib/rpcdce4.def
winsup/w32api/lib/rpcns4.def
winsup/w32api/lib/rpcrt4.def
winsup/w32api/lib/scrnsave.c
winsup/w32api/lib/secur32.def
winsup/w32api/lib/setupapi.def
winsup/w32api/lib/shell32.c
winsup/w32api/lib/shell32.def
winsup/w32api/lib/shfolder.def
winsup/w32api/lib/shlwapi.def
winsup/w32api/lib/snmpapi.def
winsup/w32api/lib/svrapi.def
winsup/w32api/lib/tapi32.def
winsup/w32api/lib/test.c
winsup/w32api/lib/th32.def
winsup/w32api/lib/thunk32.def
winsup/w32api/lib/url.def
winsup/w32api/lib/user32.def
winsup/w32api/lib/userenv.def
winsup/w32api/lib/uuid.c
winsup/w32api/lib/uxtheme.def
winsup/w32api/lib/vdmdbg.def
winsup/w32api/lib/version.def
winsup/w32api/lib/vfw32.mri
winsup/w32api/lib/win32spl.def
winsup/w32api/lib/wininet.def
winsup/w32api/lib/winmm.def
winsup/w32api/lib/winspool.def
winsup/w32api/lib/winstrm.def
winsup/w32api/lib/wldap32.def
winsup/w32api/lib/wow32.def
winsup/w32api/lib/ws2_32.c
winsup/w32api/lib/ws2_32.def
winsup/w32api/lib/wsnmp32.def
winsup/w32api/lib/wsock32.def
winsup/w32api/lib/wst.def
winsup/w32api/lib/wtsapi32.def
Diffstat (limited to 'winsup/cygwin/thread.cc')
-rw-r--r-- | winsup/cygwin/thread.cc | 3334 |
1 files changed, 0 insertions, 3334 deletions
diff --git a/winsup/cygwin/thread.cc b/winsup/cygwin/thread.cc deleted file mode 100644 index d7b2a1fa2..000000000 --- a/winsup/cygwin/thread.cc +++ /dev/null @@ -1,3334 +0,0 @@ -/* thread.cc: Locking and threading module functions - - Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Red Hat, Inc. - - Originally written by Marco Fuykschot <marco@ddi.nl> - Substantialy enhanced by Robert Collins <rbtcollins@hotmail.com> - -This file is part of Cygwin. - -This software is a copyrighted work licensed under the terms of the -Cygwin license. Please consult the file "CYGWIN_LICENSE" for -details. */ - -/* Implementation overview and caveats: - - Win32 puts some contraints on what can and cannot be implemented. Where - possible we work around those contrainsts. Where we cannot work around - the constraints we either pretend to be conformant, or return an error - code. - - Some caveats: PROCESS_SHARED objects while they pretend to be process - shared, may not actually work. Some test cases are needed to determine - win32's behaviour. My suspicion is that the win32 handle needs to be - opened with different flags for proper operation. - - R.Collins, April 2001. */ - -#ifdef HAVE_CONFIG_H -# include "config.h" -#endif - -#include "winsup.h" -#include <limits.h> -#include "cygerrno.h" -#include <assert.h> -#include <stdlib.h> -#include "pinfo.h" -#include "sigproc.h" -#include "perprocess.h" -#include "security.h" -#include "cygtls.h" -#include <semaphore.h> -#include <stdio.h> -#include <sys/timeb.h> -#include <exceptions.h> -#include <sys/fcntl.h> -#include <sys/lock.h> - -extern "C" void __fp_lock_all (); -extern "C" void __fp_unlock_all (); -static inline verifyable_object_state - verifyable_object_isvalid (void const * objectptr, long magic, - void *static_ptr1 = NULL, - void *static_ptr2 = NULL, - void *static_ptr3 = NULL); - -extern int threadsafe; - -#undef __getreent -extern "C" struct _reent * -__getreent () -{ - return &_my_tls.local_clib; -} - -extern "C" void -__cygwin_lock_init (_LOCK_T *lock) -{ - *lock = _LOCK_T_INITIALIZER; -} - -extern "C" void -__cygwin_lock_init_recursive (_LOCK_T *lock) -{ - *lock = _LOCK_T_RECURSIVE_INITIALIZER; -} - -extern "C" void -__cygwin_lock_fini (_LOCK_T *lock) -{ - pthread_mutex_destroy ((pthread_mutex_t*) lock); -} - -extern "C" void -__cygwin_lock_lock (_LOCK_T *lock) -{ - if (MT_INTERFACE->threadcount <= 1) - paranoid_printf ("threadcount %d. not locking", MT_INTERFACE->threadcount); - else - { - paranoid_printf ("threadcount %d. locking", MT_INTERFACE->threadcount); - pthread_mutex_lock ((pthread_mutex_t*) lock); - } -} - -extern "C" int -__cygwin_lock_trylock (_LOCK_T *lock) -{ - return pthread_mutex_trylock ((pthread_mutex_t*) lock); -} - - -extern "C" void -__cygwin_lock_unlock (_LOCK_T *lock) -{ - if (MT_INTERFACE->threadcount <= 1) - paranoid_printf ("threadcount %d. not unlocking", MT_INTERFACE->threadcount); - else - { - pthread_mutex_unlock ((pthread_mutex_t*) lock); - paranoid_printf ("threadcount %d. unlocked", MT_INTERFACE->threadcount); - } -} - -static inline verifyable_object_state -verifyable_object_isvalid (void const * objectptr, long magic, void *static_ptr1, - void *static_ptr2, void *static_ptr3) -{ - verifyable_object **object = (verifyable_object **) objectptr; - - myfault efault; - if (efault.faulted ()) - return INVALID_OBJECT; - - if ((static_ptr1 && *object == static_ptr1) || - (static_ptr2 && *object == static_ptr2) || - (static_ptr3 && *object == static_ptr3)) - return VALID_STATIC_OBJECT; - if ((*object)->magic != magic) - return INVALID_OBJECT; - return VALID_OBJECT; -} - -/* static members */ -inline bool -pthread_attr::is_good_object (pthread_attr_t const *attr) -{ - if (verifyable_object_isvalid (attr, PTHREAD_ATTR_MAGIC) != VALID_OBJECT) - return false; - return true; -} - -inline bool -pthread_condattr::is_good_object (pthread_condattr_t const *attr) -{ - if (verifyable_object_isvalid (attr, PTHREAD_CONDATTR_MAGIC) != VALID_OBJECT) - return false; - return true; -} - -inline bool -pthread_rwlockattr::is_good_object (pthread_rwlockattr_t const *attr) -{ - if (verifyable_object_isvalid (attr, PTHREAD_RWLOCKATTR_MAGIC) != VALID_OBJECT) - return false; - return true; -} - -inline bool -pthread_key::is_good_object (pthread_key_t const *key) -{ - if (verifyable_object_isvalid (key, PTHREAD_KEY_MAGIC) != VALID_OBJECT) - return false; - return true; -} - -inline bool -pthread_mutex::is_good_object (pthread_mutex_t const *mutex) -{ - if (verifyable_object_isvalid (mutex, PTHREAD_MUTEX_MAGIC) != VALID_OBJECT) - return false; - return true; -} - -inline bool -pthread_mutex::is_good_initializer (pthread_mutex_t const *mutex) -{ - if (verifyable_object_isvalid (mutex, PTHREAD_MUTEX_MAGIC, - PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP, - PTHREAD_NORMAL_MUTEX_INITIALIZER_NP, - PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP) != VALID_STATIC_OBJECT) - return false; - return true; -} - -inline bool -pthread_mutex::is_good_initializer_or_object (pthread_mutex_t const *mutex) -{ - if (verifyable_object_isvalid (mutex, PTHREAD_MUTEX_MAGIC, - PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP, - PTHREAD_NORMAL_MUTEX_INITIALIZER_NP, - PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP) == INVALID_OBJECT) - return false; - return true; -} - -inline bool -pthread_mutex::is_good_initializer_or_bad_object (pthread_mutex_t const *mutex) -{ - if (verifyable_object_isvalid (mutex, PTHREAD_MUTEX_MAGIC, - PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP, - PTHREAD_NORMAL_MUTEX_INITIALIZER_NP, - PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP) == VALID_OBJECT) - return false; - return true; -} - -inline bool -pthread_mutex::can_be_unlocked (pthread_mutex_t const *mutex) -{ - pthread_t self = pthread::self (); - - if (!is_good_object (mutex)) - return false; - /* Check if the mutex is owned by the current thread and can be unlocked. - * Also check for the ANONYMOUS owner to cover NORMAL mutexes as well. */ - return ((*mutex)->recursion_counter == 1 - && ((*mutex)->owner == MUTEX_OWNER_ANONYMOUS - || pthread::equal ((*mutex)->owner, self))); -} - -inline bool -pthread_mutexattr::is_good_object (pthread_mutexattr_t const * attr) -{ - if (verifyable_object_isvalid (attr, PTHREAD_MUTEXATTR_MAGIC) != VALID_OBJECT) - return false; - return true; -} - -inline bool __attribute__ ((used)) -pthread::is_good_object (pthread_t const *thread) -{ - if (verifyable_object_isvalid (thread, PTHREAD_MAGIC) != VALID_OBJECT) - return false; - return true; -} - -/* Thread synchronisation */ -inline bool -pthread_cond::is_good_object (pthread_cond_t const *cond) -{ - if (verifyable_object_isvalid (cond, PTHREAD_COND_MAGIC) != VALID_OBJECT) - return false; - return true; -} - -inline bool -pthread_cond::is_good_initializer (pthread_cond_t const *cond) -{ - if (verifyable_object_isvalid (cond, PTHREAD_COND_MAGIC, PTHREAD_COND_INITIALIZER) != VALID_STATIC_OBJECT) - return false; - return true; -} - -inline bool -pthread_cond::is_good_initializer_or_object (pthread_cond_t const *cond) -{ - if (verifyable_object_isvalid (cond, PTHREAD_COND_MAGIC, PTHREAD_COND_INITIALIZER) == INVALID_OBJECT) - return false; - return true; -} - -inline bool -pthread_cond::is_good_initializer_or_bad_object (pthread_cond_t const *cond) -{ - if (verifyable_object_isvalid (cond, PTHREAD_COND_MAGIC, PTHREAD_COND_INITIALIZER) == VALID_OBJECT) - return false; - return true; -} - -/* RW locks */ -inline bool -pthread_rwlock::is_good_object (pthread_rwlock_t const *rwlock) -{ - if (verifyable_object_isvalid (rwlock, PTHREAD_RWLOCK_MAGIC) != VALID_OBJECT) - return false; - return true; -} - -inline bool -pthread_rwlock::is_good_initializer (pthread_rwlock_t const *rwlock) -{ - if (verifyable_object_isvalid (rwlock, PTHREAD_RWLOCK_MAGIC, PTHREAD_RWLOCK_INITIALIZER) != VALID_STATIC_OBJECT) - return false; - return true; -} - -inline bool -pthread_rwlock::is_good_initializer_or_object (pthread_rwlock_t const *rwlock) -{ - if (verifyable_object_isvalid (rwlock, PTHREAD_RWLOCK_MAGIC, PTHREAD_RWLOCK_INITIALIZER) == INVALID_OBJECT) - return false; - return true; -} - -inline bool -pthread_rwlock::is_good_initializer_or_bad_object (pthread_rwlock_t const *rwlock) -{ - if (verifyable_object_isvalid (rwlock, PTHREAD_RWLOCK_MAGIC, PTHREAD_RWLOCK_INITIALIZER) == VALID_OBJECT) - return false; - return true; -} - -inline bool -semaphore::is_good_object (sem_t const * sem) -{ - if (verifyable_object_isvalid (sem, SEM_MAGIC) != VALID_OBJECT) - return false; - return true; -} - -LPCRITICAL_SECTION -ResourceLocks::Lock (int _resid) -{ - return &lock; -} - -void -SetResourceLock (int _res_id, int _mode, const char *_function) -{ - EnterCriticalSection (user_data->resourcelocks->Lock (_res_id)); -} - -void -ReleaseResourceLock (int _res_id, int _mode, const char *_function) -{ - LeaveCriticalSection (user_data->resourcelocks->Lock (_res_id)); -} - -void -ResourceLocks::Init () -{ - InitializeCriticalSection (&lock); - inited = true; - thread_printf ("lock %p inited by %p , %d", &lock, user_data, myself->pid); -} - -void -ResourceLocks::Delete () -{ - if (inited) - { - thread_printf ("Close Resource Locks %p ", &lock); - DeleteCriticalSection (&lock); - inited = false; - } -} - -void -MTinterface::Init () -{ - pthread_mutex::init_mutex (); - pthread_cond::init_mutex (); - pthread_rwlock::init_mutex (); -} - -void -MTinterface::fixup_before_fork () -{ - pthread_key::fixup_before_fork (); -} - -/* This function is called from a single threaded process */ -void -MTinterface::fixup_after_fork () -{ - pthread_key::fixup_after_fork (); - - threadcount = 0; - pthread::init_mainthread (); - - pthread::fixup_after_fork (); - pthread_mutex::fixup_after_fork (); - pthread_cond::fixup_after_fork (); - pthread_rwlock::fixup_after_fork (); - semaphore::fixup_after_fork (); -} - -/* pthread calls */ - -/* static methods */ -void -pthread::init_mainthread () -{ - pthread *thread = get_tls_self_pointer (); - if (!thread) - { - thread = new pthread (); - if (!thread) - api_fatal ("failed to create mainthread object"); - } - - set_tls_self_pointer (thread); - thread->thread_id = GetCurrentThreadId (); - if (!DuplicateHandle (hMainProc, GetCurrentThread (), hMainProc, - &thread->win32_obj_id, 0, FALSE, DUPLICATE_SAME_ACCESS)) - api_fatal ("failed to create mainthread handle"); - if (!thread->create_cancel_event ()) - api_fatal ("couldn't create cancel event for main thread"); - VerifyHandle (thread->win32_obj_id); - thread->postcreate (); -} - -pthread * -pthread::self () -{ - pthread *thread = get_tls_self_pointer (); - if (!thread) - { - thread = pthread_null::get_null_pthread (); - set_tls_self_pointer (thread); - } - return thread; -} - -pthread * -pthread::get_tls_self_pointer () -{ - return _my_tls.tid; -} - -void -pthread::set_tls_self_pointer (pthread *thread) -{ - thread->cygtls = &_my_tls; - _my_tls.tid = thread; -} - -List<pthread> pthread::threads; - -/* member methods */ -pthread::pthread ():verifyable_object (PTHREAD_MAGIC), win32_obj_id (0), - valid (false), suspended (false), - cancelstate (0), canceltype (0), cancel_event (0), - joiner (NULL), next (NULL), cleanup_stack (NULL) -{ - if (this != pthread_null::get_null_pthread ()) - threads.insert (this); -} - -pthread::~pthread () -{ - if (win32_obj_id) - CloseHandle (win32_obj_id); - if (cancel_event) - CloseHandle (cancel_event); - - if (this != pthread_null::get_null_pthread ()) - threads.remove (this); -} - -bool -pthread::create_cancel_event () -{ - cancel_event = ::CreateEvent (&sec_none_nih, TRUE, FALSE, NULL); - if (!cancel_event) - { - system_printf ("couldn't create cancel event, %E"); - /* we need the event for correct behaviour */ - return false; - } - return true; -} - -void -pthread::precreate (pthread_attr *newattr) -{ - pthread_mutex *verifyable_mutex_obj = &mutex; - - /* already running ? */ - if (win32_obj_id) - return; - - if (newattr) - { - attr.joinable = newattr->joinable; - attr.contentionscope = newattr->contentionscope; - attr.inheritsched = newattr->inheritsched; - attr.stacksize = newattr->stacksize; - } - - if (!pthread_mutex::is_good_object (&verifyable_mutex_obj)) - { - thread_printf ("New thread object access mutex is not valid. this %p", - this); - magic = 0; - return; - } - /* Change the mutex type to NORMAL to speed up mutex operations */ - mutex.type = PTHREAD_MUTEX_NORMAL; - if (!create_cancel_event ()) - magic = 0; -} - -bool -pthread::create (void *(*func) (void *), pthread_attr *newattr, - void *threadarg) -{ - bool retval; - - precreate (newattr); - if (!magic) - return false; - - function = func; - arg = threadarg; - - mutex.lock (); - win32_obj_id = ::CreateThread (&sec_none_nih, attr.stacksize, - thread_init_wrapper, this, 0, &thread_id); - - if (!win32_obj_id) - { - thread_printf ("CreateThread failed: this %p, %E", this); - magic = 0; - } - else - { - postcreate (); - while (!cygtls) - low_priority_sleep (0); - } - retval = magic; - mutex.unlock (); - return retval; -} - -void -pthread::postcreate () -{ - valid = true; - - InterlockedIncrement (&MT_INTERFACE->threadcount); - /* FIXME: set the priority appropriately for system contention scope */ - if (attr.inheritsched == PTHREAD_EXPLICIT_SCHED) - { - /* FIXME: set the scheduling settings for the new thread */ - /* sched_thread_setparam (win32_obj_id, attr.schedparam); */ - } -} - -void -pthread::exit (void *value_ptr) -{ - class pthread *thread = this; - - // run cleanup handlers - pop_all_cleanup_handlers (); - - pthread_key::run_all_destructors (); - - mutex.lock (); - // cleanup if thread is in detached state and not joined - if (equal (joiner, thread)) - delete this; - else - { - valid = false; - return_ptr = value_ptr; - mutex.unlock (); - } - - if (_my_tls.local_clib.__sdidinit < 0) - _my_tls.local_clib.__sdidinit = 0; - (_reclaim_reent) (_REENT); - - - if (InterlockedDecrement (&MT_INTERFACE->threadcount) == 0) - ::exit (0); - else - { - _my_tls.remove (INFINITE); - ExitThread (0); - } -} - -int -pthread::cancel () -{ - class pthread *thread = this; - class pthread *self = pthread::self (); - - mutex.lock (); - - if (!valid) - { - mutex.unlock (); - return 0; - } - - if (canceltype == PTHREAD_CANCEL_DEFERRED || - cancelstate == PTHREAD_CANCEL_DISABLE) - { - // cancel deferred - mutex.unlock (); - SetEvent (cancel_event); - return 0; - } - else if (equal (thread, self)) - { - mutex.unlock (); - cancel_self (); - return 0; // Never reached - } - - // cancel asynchronous - SuspendThread (win32_obj_id); - if (WaitForSingleObject (win32_obj_id, 0) == WAIT_TIMEOUT) - { - CONTEXT context; - context.ContextFlags = CONTEXT_CONTROL; - GetThreadContext (win32_obj_id, &context); - context.Eip = (DWORD) pthread::static_cancel_self; - SetThreadContext (win32_obj_id, &context); - } - mutex.unlock (); - ResumeThread (win32_obj_id); - - return 0; -/* - TODO: insert pthread_testcancel into the required functions - the required function list is: *indicates done, X indicates not present in cygwin. -aio_suspend () -*close () -*creat () -fcntl () -fsync () -getmsg () -getpmsg () -lockf () -mq_receive () -mq_send () -msgrcv () -msgsnd () -msync () -nanosleep () -open () -*pause () -poll () -pread () -*pthread_cond_timedwait () -*pthread_cond_wait () -*pthread_join () -*pthread_testcancel () -putmsg () -putpmsg () -pwrite () -read () -readv () -select () -*sem_wait () -*sigpause () -*sigsuspend () -sigtimedwait () -sigwait () -sigwaitinfo () -*sleep () -*system () -tcdrain () -*usleep () -*wait () -*wait3() -waitid () -*waitpid () -write () -writev () - -the optional list is: -catclose () -catgets () -catopen () -closedir () -closelog () -ctermid () -dbm_close () -dbm_delete () -dbm_fetch () -dbm_nextkey () -dbm_open () -dbm_store () -dlclose () -dlopen () -endgrent () -endpwent () -endutxent () -fclose () -fcntl () -fflush () -fgetc () -fgetpos () -fgets () -fgetwc () -fgetws () -fopen () -fprintf () -fputc () -fputs () -fputwc () -fputws () -fread () -freopen () -fscanf () -fseek () -fseeko () -fsetpos () -ftell () -ftello () -ftw () -fwprintf () -fwrite () -fwscanf () -getc () -getc_unlocked () -getchar () -getchar_unlocked () -getcwd () -getdate () -getgrent () -getgrgid () -getgrgid_r () -getgrnam () -getgrnam_r () -getlogin () -getlogin_r () -getpwent () -*getpwnam () -*getpwnam_r () -*getpwuid () -*getpwuid_r () -gets () -getutxent () -getutxid () -getutxline () -getw () -getwc () -getwchar () -getwd () -glob () -iconv_close () -iconv_open () -ioctl () -lseek () -mkstemp () -nftw () -opendir () -openlog () -pclose () -perror () -popen () -printf () -putc () -putc_unlocked () -putchar () -putchar_unlocked () -puts () -pututxline () -putw () -putwc () -putwchar () -readdir () -readdir_r () -remove () -rename () -rewind () -rewinddir () -scanf () -seekdir () -semop () -setgrent () -setpwent () -setutxent () -strerror () -syslog () -tmpfile () -tmpnam () -ttyname () -ttyname_r () -ungetc () -ungetwc () -unlink () -vfprintf () -vfwprintf () -vprintf () -vwprintf () -wprintf () -wscanf () - -Note, that for fcntl (), for any value of the cmd argument. - -And we must not introduce cancellation points anywhere else that's part of the posix or -opengroup specs. - */ -} - -void -pthread::testcancel () -{ - if (cancelstate == PTHREAD_CANCEL_DISABLE) - return; - - if (WaitForSingleObject (cancel_event, 0) == WAIT_OBJECT_0) - cancel_self (); -} - -void -pthread::static_cancel_self () -{ - pthread::self ()->cancel_self (); -} - -DWORD -cancelable_wait (HANDLE object, DWORD timeout, const cw_cancel_action cancel_action, - const enum cw_sig_wait sig_wait) -{ - DWORD res; - DWORD num = 0; - HANDLE wait_objects[3]; - pthread_t thread = pthread::self (); - - /* Do not change the wait order. - The object must have higher priority than the cancel event, - because WaitForMultipleObjects will return the smallest index - if both objects are signaled. */ - wait_objects[num++] = object; - DWORD cancel_n; - if (cancel_action == cw_no_cancel || !pthread::is_good_object (&thread) || - thread->cancelstate == PTHREAD_CANCEL_DISABLE) - cancel_n = (DWORD) -1; - else - { - cancel_n = WAIT_OBJECT_0 + num++; - wait_objects[cancel_n] = thread->cancel_event; - } - - DWORD sig_n; - if (sig_wait == cw_sig_nosig || &_my_tls != _main_tls) - sig_n = (DWORD) -1; - else - { - sig_n = WAIT_OBJECT_0 + num++; - wait_objects[sig_n] = signal_arrived; - } - - while (1) - { - res = WaitForMultipleObjects (num, wait_objects, FALSE, timeout); - if (res == cancel_n) - { - if (cancel_action == cw_cancel_self) - pthread::static_cancel_self (); - res = WAIT_CANCELED; - } - else if (res != sig_n) - /* all set */; - else if (sig_wait == cw_sig_eintr) - res = WAIT_SIGNALED; - else - { - _my_tls.call_signal_handler (); - continue; - } - break; - } - return res; -} - -int -pthread::setcancelstate (int state, int *oldstate) -{ - int result = 0; - - mutex.lock (); - - if (state != PTHREAD_CANCEL_ENABLE && state != PTHREAD_CANCEL_DISABLE) - result = EINVAL; - else - { - if (oldstate) - *oldstate = cancelstate; - cancelstate = state; - } - - mutex.unlock (); - - return result; -} - -int -pthread::setcanceltype (int type, int *oldtype) -{ - int result = 0; - - mutex.lock (); - - if (type != PTHREAD_CANCEL_DEFERRED && type != PTHREAD_CANCEL_ASYNCHRONOUS) - result = EINVAL; - else - { - if (oldtype) - *oldtype = canceltype; - canceltype = type; - } - - mutex.unlock (); - - return result; -} - -void -pthread::push_cleanup_handler (__pthread_cleanup_handler *handler) -{ - if (this != self ()) - // TODO: do it? - api_fatal ("Attempt to push a cleanup handler across threads"); - handler->next = cleanup_stack; - cleanup_stack = handler; -} - -void -pthread::pop_cleanup_handler (int const execute) -{ - if (this != self ()) - // TODO: send a signal or something to the thread ? - api_fatal ("Attempt to execute a cleanup handler across threads"); - - mutex.lock (); - - if (cleanup_stack != NULL) - { - __pthread_cleanup_handler *handler = cleanup_stack; - - if (execute) - (*handler->function) (handler->arg); - cleanup_stack = handler->next; - } - - mutex.unlock (); -} - -void -pthread::pop_all_cleanup_handlers () -{ - while (cleanup_stack != NULL) - pop_cleanup_handler (1); -} - -void -pthread::cancel_self () -{ - exit (PTHREAD_CANCELED); -} - -DWORD -pthread::get_thread_id () -{ - return thread_id; -} - -void -pthread::_fixup_after_fork () -{ - /* set thread to not running if it is not the forking thread */ - if (this != pthread::self ()) - { - magic = 0; - valid = false; - win32_obj_id = NULL; - cancel_event = NULL; - } -} - -void -pthread::suspend_except_self () -{ - if (valid && this != pthread::self ()) - SuspendThread (win32_obj_id); -} - -void -pthread::resume () -{ - if (valid) - ResumeThread (win32_obj_id); -} - -/* instance members */ - -pthread_attr::pthread_attr ():verifyable_object (PTHREAD_ATTR_MAGIC), -joinable (PTHREAD_CREATE_JOINABLE), contentionscope (PTHREAD_SCOPE_PROCESS), -inheritsched (PTHREAD_INHERIT_SCHED), stacksize (0) -{ - schedparam.sched_priority = 0; -} - -pthread_attr::~pthread_attr () -{ -} - -pthread_condattr::pthread_condattr ():verifyable_object - (PTHREAD_CONDATTR_MAGIC), shared (PTHREAD_PROCESS_PRIVATE) -{ -} - -pthread_condattr::~pthread_condattr () -{ -} - -List<pthread_cond> pthread_cond::conds; - -/* This is used for cond creation protection within a single process only */ -fast_mutex NO_COPY pthread_cond::cond_initialization_lock; - -/* We can only be called once. - TODO: (no rush) use a non copied memory section to - hold an initialization flag. */ -void -pthread_cond::init_mutex () -{ - if (!cond_initialization_lock.init ()) - api_fatal ("Could not create win32 Mutex for pthread cond static initializer support."); -} - -pthread_cond::pthread_cond (pthread_condattr *attr) : - verifyable_object (PTHREAD_COND_MAGIC), - shared (0), waiting (0), pending (0), sem_wait (NULL), - mtx_cond(NULL), next (NULL) -{ - pthread_mutex *verifyable_mutex_obj; - - if (attr) - if (attr->shared != PTHREAD_PROCESS_PRIVATE) - { - magic = 0; - return; - } - - verifyable_mutex_obj = &mtx_in; - if (!pthread_mutex::is_good_object (&verifyable_mutex_obj)) - { - thread_printf ("Internal cond mutex is not valid. this %p", this); - magic = 0; - return; - } - /* - * Change the mutex type to NORMAL. - * This mutex MUST be of type normal - */ - mtx_in.type = PTHREAD_MUTEX_NORMAL; - - verifyable_mutex_obj = &mtx_out; - if (!pthread_mutex::is_good_object (&verifyable_mutex_obj)) - { - thread_printf ("Internal cond mutex is not valid. this %p", this); - magic = 0; - return; - } - /* Change the mutex type to NORMAL to speed up mutex operations */ - mtx_out.type = PTHREAD_MUTEX_NORMAL; - - sem_wait = ::CreateSemaphore (&sec_none_nih, 0, LONG_MAX, NULL); - if (!sem_wait) - { - debug_printf ("CreateSemaphore failed. %E"); - magic = 0; - return; - } - - conds.insert (this); -} - -pthread_cond::~pthread_cond () -{ - if (sem_wait) - CloseHandle (sem_wait); - - conds.remove (this); -} - -void -pthread_cond::unblock (const bool all) -{ - unsigned long releaseable; - - /* - * Block outgoing threads (and avoid simultanous unblocks) - */ - mtx_out.lock (); - - releaseable = waiting - pending; - if (releaseable) - { - unsigned long released; - - if (!pending) - { - /* - * Block incoming threads until all waiting threads are released. - */ - mtx_in.lock (); - - /* - * Calculate releaseable again because threads can enter until - * the semaphore has been taken, but they can not leave, therefore pending - * is unchanged and releaseable can only get higher - */ - releaseable = waiting - pending; - } - - released = all ? releaseable : 1; - pending += released; - /* - * Signal threads - */ - ::ReleaseSemaphore (sem_wait, released, NULL); - } - - /* - * And let the threads release. - */ - mtx_out.unlock (); -} - -int -pthread_cond::wait (pthread_mutex_t mutex, DWORD dwMilliseconds) -{ - DWORD rv; - - mtx_in.lock (); - if (InterlockedIncrement ((long *)&waiting) == 1) - mtx_cond = mutex; - else if (mtx_cond != mutex) - { - InterlockedDecrement ((long *)&waiting); - mtx_in.unlock (); - return EINVAL; - } - mtx_in.unlock (); - - /* - * Release the mutex and wait on semaphore - */ - ++mutex->condwaits; - mutex->unlock (); - - rv = cancelable_wait (sem_wait, dwMilliseconds, cw_no_cancel_self, cw_sig_eintr); - - mtx_out.lock (); - - if (rv != WAIT_OBJECT_0) - { - /* - * It might happen that a signal is sent while the thread got canceled - * or timed out. Try to take one. - * If the thread gets one than a signal|broadcast is in progress. - */ - if (WaitForSingleObject (sem_wait, 0) == WAIT_OBJECT_0) - /* - * thread got cancelled ot timed out while a signalling is in progress. - * Set wait result back to signaled - */ - rv = WAIT_OBJECT_0; - } - - InterlockedDecrement ((long *)&waiting); - - if (rv == WAIT_OBJECT_0 && --pending == 0) - /* - * All signaled threads are released, - * new threads can enter Wait - */ - mtx_in.unlock (); - - mtx_out.unlock (); - - mutex->lock (); - --mutex->condwaits; - - if (rv == WAIT_CANCELED) - pthread::static_cancel_self (); - else if (rv == WAIT_SIGNALED) - /* SUSv3 states: If a signal is delivered to a thread waiting for a - condition variable, upon return from the signal handler the thread - resumes waiting for the condition variable as if it was not - interrupted, or it shall return zero due to spurious wakeup. - We opt for the latter choice here. */ - return 0; - else if (rv == WAIT_TIMEOUT) - return ETIMEDOUT; - - return 0; -} - -void -pthread_cond::_fixup_after_fork () -{ - waiting = pending = 0; - mtx_cond = NULL; - - /* Unlock eventually locked mutexes */ - mtx_in.unlock (); - mtx_out.unlock (); - - sem_wait = ::CreateSemaphore (&sec_none_nih, 0, LONG_MAX, NULL); - if (!sem_wait) - api_fatal ("pthread_cond::_fixup_after_fork () failed to recreate win32 semaphore"); -} - -pthread_rwlockattr::pthread_rwlockattr ():verifyable_object - (PTHREAD_RWLOCKATTR_MAGIC), shared (PTHREAD_PROCESS_PRIVATE) -{ -} - -pthread_rwlockattr::~pthread_rwlockattr () -{ -} - -List<pthread_rwlock> pthread_rwlock::rwlocks; - -/* This is used for rwlock creation protection within a single process only */ -fast_mutex NO_COPY pthread_rwlock::rwlock_initialization_lock; - -/* We can only be called once. - TODO: (no rush) use a non copied memory section to - hold an initialization flag. */ -void -pthread_rwlock::init_mutex () -{ - if (!rwlock_initialization_lock.init ()) - api_fatal ("Could not create win32 Mutex for pthread rwlock static initializer support."); -} - -pthread_rwlock::pthread_rwlock (pthread_rwlockattr *attr) : - verifyable_object (PTHREAD_RWLOCK_MAGIC), - shared (0), waiting_readers (0), waiting_writers (0), writer (NULL), - readers (NULL), readers_mx (), mtx (NULL), cond_readers (NULL), cond_writers (NULL), - next (NULL) -{ - pthread_mutex *verifyable_mutex_obj = &mtx; - pthread_cond *verifyable_cond_obj; - - if (!readers_mx.init ()) - { - thread_printf ("Internal rwlock synchronisation mutex is not valid. this %p", this); - magic = 0; - return; - } - - if (attr) - if (attr->shared != PTHREAD_PROCESS_PRIVATE) - { - magic = 0; - return; - } - - if (!pthread_mutex::is_good_object (&verifyable_mutex_obj)) - { - thread_printf ("Internal rwlock mutex is not valid. this %p", this); - magic = 0; - return; - } - /* Change the mutex type to NORMAL to speed up mutex operations */ - mtx.type = PTHREAD_MUTEX_NORMAL; - - verifyable_cond_obj = &cond_readers; - if (!pthread_cond::is_good_object (&verifyable_cond_obj)) - { - thread_printf ("Internal rwlock readers cond is not valid. this %p", this); - magic = 0; - return; - } - - verifyable_cond_obj = &cond_writers; - if (!pthread_cond::is_good_object (&verifyable_cond_obj)) - { - thread_printf ("Internal rwlock writers cond is not valid. this %p", this); - magic = 0; - return; - } - - - rwlocks.insert (this); -} - -pthread_rwlock::~pthread_rwlock () -{ - rwlocks.remove (this); -} - -int -pthread_rwlock::rdlock () -{ - int result = 0; - struct RWLOCK_READER *reader; - pthread_t self = pthread::self (); - - mtx.lock (); - - if (lookup_reader (self)) - { - result = EDEADLK; - goto DONE; - } - - reader = new struct RWLOCK_READER; - if (!reader) - { - result = EAGAIN; - goto DONE; - } - - while (writer || waiting_writers) - { - pthread_cleanup_push (pthread_rwlock::rdlock_cleanup, this); - - ++waiting_readers; - cond_readers.wait (&mtx); - --waiting_readers; - - pthread_cleanup_pop (0); - } - - reader->thread = self; - add_reader (reader); - - DONE: - mtx.unlock (); - - return result; -} - -int -pthread_rwlock::tryrdlock () -{ - int result = 0; - pthread_t self = pthread::self (); - - mtx.lock (); - - if (writer || waiting_writers || lookup_reader (self)) - result = EBUSY; - else - { - struct RWLOCK_READER *reader = new struct RWLOCK_READER; - if (reader) - { - reader->thread = self; - add_reader (reader); - } - else - result = EAGAIN; - } - - mtx.unlock (); - - return result; -} - -int -pthread_rwlock::wrlock () -{ - int result = 0; - pthread_t self = pthread::self (); - - mtx.lock (); - - if (writer == self || lookup_reader (self)) - { - result = EDEADLK; - goto DONE; - } - - while (writer || readers) - { - pthread_cleanup_push (pthread_rwlock::wrlock_cleanup, this); - - ++waiting_writers; - cond_writers.wait (&mtx); - --waiting_writers; - - pthread_cleanup_pop (0); - } - - writer = self; - - DONE: - mtx.unlock (); - - return result; -} - -int -pthread_rwlock::trywrlock () -{ - int result = 0; - pthread_t self = pthread::self (); - - mtx.lock (); - - if (writer || readers) - result = EBUSY; - else - writer = self; - - mtx.unlock (); - - return result; -} - -int -pthread_rwlock::unlock () -{ - int result = 0; - pthread_t self = pthread::self (); - - mtx.lock (); - - if (writer) - { - if (writer != self) - { - result = EPERM; - goto DONE; - } - - writer = NULL; - } - else - { - struct RWLOCK_READER *reader = lookup_reader (self); - - if (!reader) - { - result = EPERM; - goto DONE; - } - - remove_reader (reader); - delete reader; - } - - release (); - - DONE: - mtx.unlock (); - - return result; -} - -void -pthread_rwlock::add_reader (struct RWLOCK_READER *rd) -{ - List_insert (readers, rd); -} - -void -pthread_rwlock::remove_reader (struct RWLOCK_READER *rd) -{ - List_remove (readers_mx, readers, rd); -} - -struct pthread_rwlock::RWLOCK_READER * -pthread_rwlock::lookup_reader (pthread_t thread) -{ - readers_mx.lock (); - - struct RWLOCK_READER *cur = readers; - - while (cur && cur->thread != thread) - cur = cur->next; - - readers_mx.unlock (); - - return cur; -} - -void -pthread_rwlock::rdlock_cleanup (void *arg) -{ - pthread_rwlock *rwlock = (pthread_rwlock *) arg; - - --(rwlock->waiting_readers); - rwlock->release (); - rwlock->mtx.unlock (); -} - -void -pthread_rwlock::wrlock_cleanup (void *arg) -{ - pthread_rwlock *rwlock = (pthread_rwlock *) arg; - - --(rwlock->waiting_writers); - rwlock->release (); - rwlock->mtx.unlock (); -} - -void -pthread_rwlock::_fixup_after_fork () -{ - pthread_t self = pthread::self (); - struct RWLOCK_READER **temp = &readers; - - waiting_readers = 0; - waiting_writers = 0; - - if (!readers_mx.init ()) - api_fatal ("pthread_rwlock::_fixup_after_fork () failed to recreate mutex"); - - /* Unlock eventually locked mutex */ - mtx.unlock (); - /* - * Remove all readers except self - */ - while (*temp) - { - if ((*temp)->thread == self) - temp = &((*temp)->next); - else - { - struct RWLOCK_READER *cur = *temp; - *temp = (*temp)->next; - delete cur; - } - } -} - -/* pthread_key */ -/* static members */ -/* This stores pthread_key information across fork() boundaries */ -List<pthread_key> pthread_key::keys; - -/* non-static members */ - -pthread_key::pthread_key (void (*aDestructor) (void *)):verifyable_object (PTHREAD_KEY_MAGIC), destructor (aDestructor) -{ - tls_index = TlsAlloc (); - if (tls_index == TLS_OUT_OF_INDEXES) - magic = 0; - else - keys.insert (this); -} - -pthread_key::~pthread_key () -{ - /* We may need to make the list code lock the list during operations - */ - if (magic != 0) - { - keys.remove (this); - TlsFree (tls_index); - } -} - -void -pthread_key::_fixup_before_fork () -{ - fork_buf = get (); -} - -void -pthread_key::_fixup_after_fork () -{ - tls_index = TlsAlloc (); - if (tls_index == TLS_OUT_OF_INDEXES) - api_fatal ("pthread_key::recreate_key_from_buffer () failed to reallocate Tls storage"); - set (fork_buf); -} - -void -pthread_key::run_destructor () -{ - if (destructor) - { - void *oldValue = get (); - if (oldValue) - { - set (NULL); - destructor (oldValue); - } - } -} - -/* pshared mutexs: - - REMOVED FROM CURRENT. These can be reinstated with the daemon, when all the - gymnastics can be a lot easier. - - the mutex_t (size 4) is not used as a verifyable object because we cannot - guarantee the same address space for all processes. - we use the following: - high bit set (never a valid address). - second byte is reserved for the priority. - third byte is reserved - fourth byte is the mutex id. (max 255 cygwin mutexs system wide). - creating mutex's does get slower and slower, but as creation is a one time - job, it should never become an issue - - And if you're looking at this and thinking, why not an array in cygwin for all mutexs, - - you incur a penalty on _every_ mutex call and you have toserialise them all. - ... Bad karma. - - option 2? put everything in userspace and update the ABI? - - bad karma as well - the HANDLE, while identical across process's, - Isn't duplicated, it's reopened. */ - -/* static members */ - -List<pthread_mutex> pthread_mutex::mutexes; - -/* This is used for mutex creation protection within a single process only */ -fast_mutex NO_COPY pthread_mutex::mutex_initialization_lock; - -/* We can only be called once. - TODO: (no rush) use a non copied memory section to - hold an initialization flag. */ -void -pthread_mutex::init_mutex () -{ - if (!mutex_initialization_lock.init ()) - api_fatal ("Could not create win32 Mutex for pthread mutex static initializer support."); -} - -pthread_mutex::pthread_mutex (pthread_mutexattr *attr) : - verifyable_object (PTHREAD_MUTEX_MAGIC), - lock_counter (0), - win32_obj_id (NULL), recursion_counter (0), - condwaits (0), owner (NULL), type (PTHREAD_MUTEX_ERRORCHECK), - pshared (PTHREAD_PROCESS_PRIVATE) -{ - win32_obj_id = ::CreateSemaphore (&sec_none_nih, 0, LONG_MAX, NULL); - if (!win32_obj_id) - { - magic = 0; - return; - } - /*attr checked in the C call */ - if (attr) - { - if (attr->pshared == PTHREAD_PROCESS_SHARED) - { - // fail - magic = 0; - return; - } - - type = attr->mutextype; - } - - mutexes.insert (this); -} - -pthread_mutex::~pthread_mutex () -{ - if (win32_obj_id) - CloseHandle (win32_obj_id); - - mutexes.remove (this); -} - -int -pthread_mutex::_lock (pthread_t self) -{ - int result = 0; - - if (InterlockedIncrement ((long *)&lock_counter) == 1) - set_owner (self); - else if (type == PTHREAD_MUTEX_NORMAL || !pthread::equal (owner, self)) - { - cancelable_wait (win32_obj_id, INFINITE, cw_no_cancel, cw_sig_resume); - set_owner (self); - } - else - { - InterlockedDecrement ((long *) &lock_counter); - if (type == PTHREAD_MUTEX_RECURSIVE) - result = lock_recursive (); - else - result = EDEADLK; - } - - return result; -} - -int -pthread_mutex::_trylock (pthread_t self) -{ - int result = 0; - - if (InterlockedCompareExchange ((long *) &lock_counter, 1, 0) == 0) - set_owner (self); - else if (type == PTHREAD_MUTEX_RECURSIVE && pthread::equal (owner, self)) - result = lock_recursive (); - else - result = EBUSY; - - return result; -} - -int -pthread_mutex::_unlock (pthread_t self) -{ - if (!pthread::equal (owner, self)) - return EPERM; - - if (--recursion_counter == 0) - { - owner = NULL; - if (InterlockedDecrement ((long *)&lock_counter)) - // Another thread is waiting - ::ReleaseSemaphore (win32_obj_id, 1, NULL); - } - - return 0; -} - -int -pthread_mutex::_destroy (pthread_t self) -{ - if (condwaits || _trylock (self)) - // Do not destroy a condwaited or locked mutex - return EBUSY; - else if (recursion_counter != 1) - { - // Do not destroy a recursive locked mutex - --recursion_counter; - return EBUSY; - } - - delete this; - return 0; -} - -void -pthread_mutex::_fixup_after_fork () -{ - debug_printf ("mutex %x in _fixup_after_fork", this); - if (pshared != PTHREAD_PROCESS_PRIVATE) - api_fatal ("pthread_mutex::_fixup_after_fork () doesn'tunderstand PROCESS_SHARED mutex's"); - - if (owner == NULL) - /* mutex has no owner, reset to initial */ - lock_counter = 0; - else if (lock_counter != 0) - /* All waiting threads are gone after a fork */ - lock_counter = 1; - - win32_obj_id = ::CreateSemaphore (&sec_none_nih, 0, LONG_MAX, NULL); - if (!win32_obj_id) - api_fatal ("pthread_mutex::_fixup_after_fork () failed to recreate win32 semaphore for mutex"); - - condwaits = 0; -} - -pthread_mutexattr::pthread_mutexattr ():verifyable_object (PTHREAD_MUTEXATTR_MAGIC), -pshared (PTHREAD_PROCESS_PRIVATE), mutextype (PTHREAD_MUTEX_ERRORCHECK) -{ -} - -pthread_mutexattr::~pthread_mutexattr () -{ -} - -List<semaphore> semaphore::semaphores; - -semaphore::semaphore (int pshared, unsigned int value) -: verifyable_object (SEM_MAGIC), - shared (pshared), - currentvalue (value), - name (NULL) -{ - SECURITY_ATTRIBUTES sa = (pshared != PTHREAD_PROCESS_PRIVATE) - ? sec_all : sec_none_nih; - this->win32_obj_id = ::CreateSemaphore (&sa, value, LONG_MAX, NULL); - if (!this->win32_obj_id) - magic = 0; - - semaphores.insert (this); -} - -semaphore::semaphore (const char *sem_name, int oflag, mode_t mode, - unsigned int value) -: verifyable_object (SEM_MAGIC), - shared (PTHREAD_PROCESS_SHARED), - currentvalue (value), /* Unused for named semaphores. */ - name (NULL) -{ - if (oflag & O_CREAT) - { - SECURITY_ATTRIBUTES sa = sec_all; - security_descriptor sd; - if (allow_ntsec) - set_security_attribute (mode, &sa, sd); - this->win32_obj_id = ::CreateSemaphore (&sa, value, LONG_MAX, sem_name); - if (!this->win32_obj_id) - magic = 0; - if (GetLastError () == ERROR_ALREADY_EXISTS && (oflag & O_EXCL)) - { - __seterrno (); - CloseHandle (this->win32_obj_id); - magic = 0; - } - } - else - { - this->win32_obj_id = ::OpenSemaphore (SEMAPHORE_ALL_ACCESS, FALSE, - sem_name); - if (!this->win32_obj_id) - { - __seterrno (); - magic = 0; - } - } - if (magic) - { - name = new char [strlen (sem_name + 1)]; - if (!name) - { - set_errno (ENOSPC); - CloseHandle (this->win32_obj_id); - magic = 0; - } - else - strcpy (name, sem_name); - } - - semaphores.insert (this); -} - -semaphore::~semaphore () -{ - if (win32_obj_id) - CloseHandle (win32_obj_id); - - delete [] name; - - semaphores.remove (this); -} - -void -semaphore::_post () -{ - if (ReleaseSemaphore (win32_obj_id, 1, ¤tvalue)) - currentvalue++; -} - -int -semaphore::_getvalue (int *sval) -{ - long val; - - switch (WaitForSingleObject (win32_obj_id, 0)) - { - case WAIT_OBJECT_0: - ReleaseSemaphore (win32_obj_id, 1, &val); - *sval = val + 1; - break; - case WAIT_TIMEOUT: - *sval = 0; - break; - default: - set_errno (EAGAIN); - return -1; - } - return 0; -} - -int -semaphore::_trywait () -{ - /* FIXME: signals should be able to interrupt semaphores... - We probably need WaitForMultipleObjects here. */ - if (WaitForSingleObject (win32_obj_id, 0) == WAIT_TIMEOUT) - { - set_errno (EAGAIN); - return -1; - } - currentvalue--; - return 0; -} - -int -semaphore::_timedwait (const struct timespec *abstime) -{ - struct timeval tv; - long waitlength; - - myfault efault; - if (efault.faulted ()) - { - /* According to SUSv3, abstime need not be checked for validity, - if the semaphore can be locked immediately. */ - if (!_trywait ()) - return 0; - set_errno (EINVAL); - return -1; - } - - gettimeofday (&tv, NULL); - waitlength = abstime->tv_sec * 1000 + abstime->tv_nsec / (1000 * 1000); - waitlength -= tv.tv_sec * 1000 + tv.tv_usec / 1000; - if (waitlength < 0) - waitlength = 0; - switch (cancelable_wait (win32_obj_id, waitlength, cw_cancel_self, cw_sig_eintr)) - { - case WAIT_OBJECT_0: - currentvalue--; - break; - case WAIT_SIGNALED: - set_errno (EINTR); - return -1; - case WAIT_TIMEOUT: - set_errno (ETIMEDOUT); - return -1; - default: - debug_printf ("cancelable_wait failed. %E"); - __seterrno (); - return -1; - } - return 0; -} - -int -semaphore::_wait () -{ - switch (cancelable_wait (win32_obj_id, INFINITE, cw_cancel_self, cw_sig_eintr)) - { - case WAIT_OBJECT_0: - currentvalue--; - break; - case WAIT_SIGNALED: - set_errno (EINTR); - return -1; - default: - debug_printf ("cancelable_wait failed. %E"); - break; - } - return 0; -} - -void -semaphore::_fixup_after_fork () -{ - if (shared == PTHREAD_PROCESS_PRIVATE) - { - debug_printf ("sem %x in _fixup_after_fork", this); - /* FIXME: duplicate code here and in the constructor. */ - this->win32_obj_id = ::CreateSemaphore (&sec_none_nih, currentvalue, - LONG_MAX, NULL); - if (!win32_obj_id) - api_fatal ("failed to create new win32 semaphore, error %d"); - } -} - -verifyable_object::verifyable_object (long verifyer): -magic (verifyer) -{ -} - -verifyable_object::~verifyable_object () -{ - magic = 0; -} - -DWORD WINAPI -pthread::thread_init_wrapper (void *arg) -{ - pthread *thread = (pthread *) arg; - set_tls_self_pointer (thread); - - thread->mutex.lock (); - - // if thread is detached force cleanup on exit - if (thread->attr.joinable == PTHREAD_CREATE_DETACHED && thread->joiner == NULL) - thread->joiner = thread; - thread->mutex.unlock (); - - thread_printf ("started thread %p %p %p %p %p %p", arg, &_my_tls.local_clib, - _impure_ptr, thread, thread->function, thread->arg); - - // call the user's thread - void *ret = thread->function (thread->arg); - - thread->exit (ret); - - return 0; // just for show. Never returns. -} - -unsigned long -pthread::getsequence_np () -{ - return get_thread_id (); -} - -int -pthread::create (pthread_t *thread, const pthread_attr_t *attr, - void *(*start_routine) (void *), void *arg) -{ - if (attr && !pthread_attr::is_good_object (attr)) - return EINVAL; - - *thread = new pthread (); - if (!(*thread)->create (start_routine, attr ? *attr : NULL, arg)) - { - delete (*thread); - *thread = NULL; - return EAGAIN; - } - - return 0; -} - -int -pthread::once (pthread_once_t *once_control, void (*init_routine) (void)) -{ - // already done ? - if (once_control->state) - return 0; - - pthread_mutex_lock (&once_control->mutex); - /* Here we must set a cancellation handler to unlock the mutex if needed */ - /* but a cancellation handler is not the right thing. We need this in the thread - *cleanup routine. Assumption: a thread can only be in one pthread_once routine - *at a time. Stote a mutex_t *in the pthread_structure. if that's non null unlock - *on pthread_exit (); - */ - if (!once_control->state) - { - init_routine (); - once_control->state = 1; - } - /* Here we must remove our cancellation handler */ - pthread_mutex_unlock (&once_control->mutex); - return 0; -} - -int -pthread::cancel (pthread_t thread) -{ - if (!is_good_object (&thread)) - return ESRCH; - - return thread->cancel (); -} - -void -pthread::atforkprepare () -{ - callback *cb = MT_INTERFACE->pthread_prepare; - while (cb) - { - cb->cb (); - cb = cb->next; - } - - __fp_lock_all (); - - MT_INTERFACE->fixup_before_fork (); -} - -void -pthread::atforkparent () -{ - __fp_unlock_all (); - - callback *cb = MT_INTERFACE->pthread_parent; - while (cb) - { - cb->cb (); - cb = cb->next; - } -} - -void -pthread::atforkchild () -{ - MT_INTERFACE->fixup_after_fork (); - - __fp_unlock_all (); - - callback *cb = MT_INTERFACE->pthread_child; - while (cb) - { - cb->cb (); - cb = cb->next; - } -} - -/* Register a set of functions to run before and after fork. - prepare calls are called in LI-FC order. - parent and child calls are called in FI-FC order. */ -int -pthread::atfork (void (*prepare)(void), void (*parent)(void), void (*child)(void)) -{ - callback *prepcb = NULL, *parentcb = NULL, *childcb = NULL; - if (prepare) - { - prepcb = new callback; - if (!prepcb) - return ENOMEM; - } - if (parent) - { - parentcb = new callback; - if (!parentcb) - { - if (prepcb) - delete prepcb; - return ENOMEM; - } - } - if (child) - { - childcb = new callback; - if (!childcb) - { - if (prepcb) - delete prepcb; - if (parentcb) - delete parentcb; - return ENOMEM; - } - } - - if (prepcb) - { - prepcb->cb = prepare; - List_insert (MT_INTERFACE->pthread_prepare, prepcb); - } - if (parentcb) - { - parentcb->cb = parent; - callback **t = &MT_INTERFACE->pthread_parent; - while (*t) - t = &(*t)->next; - /* t = pointer to last next in the list */ - List_insert (*t, parentcb); - } - if (childcb) - { - childcb->cb = child; - callback **t = &MT_INTERFACE->pthread_child; - while (*t) - t = &(*t)->next; - /* t = pointer to last next in the list */ - List_insert (*t, childcb); - } - return 0; -} - -extern "C" int -pthread_attr_init (pthread_attr_t *attr) -{ - if (pthread_attr::is_good_object (attr)) - return EBUSY; - - *attr = new pthread_attr; - if (!pthread_attr::is_good_object (attr)) - { - delete (*attr); - *attr = NULL; - return ENOMEM; - } - return 0; -} - -extern "C" int -pthread_attr_getinheritsched (const pthread_attr_t *attr, - int *inheritsched) -{ - if (!pthread_attr::is_good_object (attr)) - return EINVAL; - *inheritsched = (*attr)->inheritsched; - return 0; -} - -extern "C" int -pthread_attr_getschedparam (const pthread_attr_t *attr, - struct sched_param *param) -{ - if (!pthread_attr::is_good_object (attr)) - return EINVAL; - *param = (*attr)->schedparam; - return 0; -} - -/* From a pure code point of view, this should call a helper in sched.cc, - to allow for someone adding scheduler policy changes to win32 in the future. - However that's extremely unlikely, so short and sweet will do us */ -extern "C" int -pthread_attr_getschedpolicy (const pthread_attr_t *attr, int *policy) -{ - if (!pthread_attr::is_good_object (attr)) - return EINVAL; - *policy = SCHED_FIFO; - return 0; -} - - -extern "C" int -pthread_attr_getscope (const pthread_attr_t *attr, int *contentionscope) -{ - if (!pthread_attr::is_good_object (attr)) - return EINVAL; - *contentionscope = (*attr)->contentionscope; - return 0; -} - -extern "C" int -pthread_attr_setdetachstate (pthread_attr_t *attr, int detachstate) -{ - if (!pthread_attr::is_good_object (attr)) - return EINVAL; - if (detachstate < 0 || detachstate > 1) - return EINVAL; - (*attr)->joinable = detachstate; - return 0; -} - -extern "C" int -pthread_attr_getdetachstate (const pthread_attr_t *attr, int *detachstate) -{ - if (!pthread_attr::is_good_object (attr)) - return EINVAL; - *detachstate = (*attr)->joinable; - return 0; -} - -extern "C" int -pthread_attr_setinheritsched (pthread_attr_t *attr, int inheritsched) -{ - if (!pthread_attr::is_good_object (attr)) - return EINVAL; - if (inheritsched != PTHREAD_INHERIT_SCHED - && inheritsched != PTHREAD_EXPLICIT_SCHED) - return ENOTSUP; - (*attr)->inheritsched = inheritsched; - return 0; -} - -extern "C" int -pthread_attr_setschedparam (pthread_attr_t *attr, - const struct sched_param *param) -{ - if (!pthread_attr::is_good_object (attr)) - return EINVAL; - if (!valid_sched_parameters (param)) - return ENOTSUP; - (*attr)->schedparam = *param; - return 0; -} - -/* See __pthread_attr_getschedpolicy for some notes */ -extern "C" int -pthread_attr_setschedpolicy (pthread_attr_t *attr, int policy) -{ - if (!pthread_attr::is_good_object (attr)) - return EINVAL; - if (policy != SCHED_FIFO) - return ENOTSUP; - return 0; -} - -extern "C" int -pthread_attr_setscope (pthread_attr_t *attr, int contentionscope) -{ - if (!pthread_attr::is_good_object (attr)) - return EINVAL; - if (contentionscope != PTHREAD_SCOPE_SYSTEM - && contentionscope != PTHREAD_SCOPE_PROCESS) - return EINVAL; - /* In future, we may be able to support system scope by escalating the thread - priority to exceed the priority class. For now we only support PROCESS scope. */ - if (contentionscope != PTHREAD_SCOPE_PROCESS) - return ENOTSUP; - (*attr)->contentionscope = contentionscope; - return 0; -} - -extern "C" int -pthread_attr_setstacksize (pthread_attr_t *attr, size_t size) -{ - if (!pthread_attr::is_good_object (attr)) - return EINVAL; - (*attr)->stacksize = size; - return 0; -} - -extern "C" int -pthread_attr_getstacksize (const pthread_attr_t *attr, size_t *size) -{ - if (!pthread_attr::is_good_object (attr)) - return EINVAL; - *size = (*attr)->stacksize; - return 0; -} - -extern "C" int -pthread_attr_destroy (pthread_attr_t *attr) -{ - if (!pthread_attr::is_good_object (attr)) - return EINVAL; - delete (*attr); - *attr = NULL; - return 0; -} - -int -pthread::join (pthread_t *thread, void **return_val) -{ - pthread_t joiner = self (); - - joiner->testcancel (); - - // Initialize return val with NULL - if (return_val) - *return_val = NULL; - - if (!is_good_object (&joiner)) - return EINVAL; - - if (!is_good_object (thread)) - return ESRCH; - - if (equal (*thread,joiner)) - return EDEADLK; - - (*thread)->mutex.lock (); - - if ((*thread)->attr.joinable == PTHREAD_CREATE_DETACHED) - { - (*thread)->mutex.unlock (); - return EINVAL; - } - else - { - (*thread)->joiner = joiner; - (*thread)->attr.joinable = PTHREAD_CREATE_DETACHED; - (*thread)->mutex.unlock (); - - switch (cancelable_wait ((*thread)->win32_obj_id, INFINITE, cw_no_cancel_self, cw_sig_resume)) - { - case WAIT_OBJECT_0: - if (return_val) - *return_val = (*thread)->return_ptr; - delete (*thread); - break; - case WAIT_CANCELED: - // set joined thread back to joinable since we got canceled - (*thread)->joiner = NULL; - (*thread)->attr.joinable = PTHREAD_CREATE_JOINABLE; - joiner->cancel_self (); - // never reached - break; - default: - // should never happen - return EINVAL; - } - } - - return 0; -} - -int -pthread::detach (pthread_t *thread) -{ - if (!is_good_object (thread)) - return ESRCH; - - (*thread)->mutex.lock (); - if ((*thread)->attr.joinable == PTHREAD_CREATE_DETACHED) - { - (*thread)->mutex.unlock (); - return EINVAL; - } - - // check if thread is still alive - if ((*thread)->valid && WaitForSingleObject ((*thread)->win32_obj_id, 0) == WAIT_TIMEOUT) - { - // force cleanup on exit - (*thread)->joiner = *thread; - (*thread)->attr.joinable = PTHREAD_CREATE_DETACHED; - (*thread)->mutex.unlock (); - } - else - { - // thread has already terminated. - (*thread)->mutex.unlock (); - delete (*thread); - } - - return 0; -} - -int -pthread::suspend (pthread_t *thread) -{ - if (!is_good_object (thread)) - return ESRCH; - - if ((*thread)->suspended == false) - { - (*thread)->suspended = true; - SuspendThread ((*thread)->win32_obj_id); - } - - return 0; -} - - -int -pthread::resume (pthread_t *thread) -{ - if (!is_good_object (thread)) - return ESRCH; - - if ((*thread)->suspended == true) - ResumeThread ((*thread)->win32_obj_id); - (*thread)->suspended = false; - - return 0; -} - -/* provided for source level compatability. - See http://www.opengroup.org/onlinepubs/007908799/xsh/pthread_getconcurrency.html -*/ -extern "C" int -pthread_getconcurrency () -{ - return MT_INTERFACE->concurrency; -} - -/* keep this in sync with sched.cc */ -extern "C" int -pthread_getschedparam (pthread_t thread, int *policy, - struct sched_param *param) -{ - if (!pthread::is_good_object (&thread)) - return ESRCH; - *policy = SCHED_FIFO; - /* we don't return the current effective priority, we return the current - requested priority */ - *param = thread->attr.schedparam; - return 0; -} - -/* Thread Specific Data */ -extern "C" int -pthread_key_create (pthread_key_t *key, void (*destructor) (void *)) -{ - /* The opengroup docs don't define if we should check this or not, - but creation is relatively rare. */ - if (pthread_key::is_good_object (key)) - return EBUSY; - - *key = new pthread_key (destructor); - - if (!pthread_key::is_good_object (key)) - { - delete (*key); - *key = NULL; - return EAGAIN; - } - return 0; -} - -extern "C" int -pthread_key_delete (pthread_key_t key) -{ - if (!pthread_key::is_good_object (&key)) - return EINVAL; - - delete (key); - return 0; -} - -/* provided for source level compatability. See -http://www.opengroup.org/onlinepubs/007908799/xsh/pthread_getconcurrency.html -*/ -extern "C" int -pthread_setconcurrency (int new_level) -{ - if (new_level < 0) - return EINVAL; - MT_INTERFACE->concurrency = new_level; - return 0; -} - -/* keep syncronised with sched.cc */ -extern "C" int -pthread_setschedparam (pthread_t thread, int policy, - const struct sched_param *param) -{ - if (!pthread::is_good_object (&thread)) - return ESRCH; - if (policy != SCHED_FIFO) - return ENOTSUP; - if (!param) - return EINVAL; - int rv = - sched_set_thread_priority (thread->win32_obj_id, param->sched_priority); - if (!rv) - thread->attr.schedparam.sched_priority = param->sched_priority; - return rv; -} - - -extern "C" int -pthread_setspecific (pthread_key_t key, const void *value) -{ - if (!pthread_key::is_good_object (&key)) - return EINVAL; - (key)->set (value); - return 0; -} - -extern "C" void * -pthread_getspecific (pthread_key_t key) -{ - if (!pthread_key::is_good_object (&key)) - return NULL; - - return (key)->get (); - -} - -extern "C" int -pthread_cond_destroy (pthread_cond_t *cond) -{ - if (pthread_cond::is_good_initializer (cond)) - return 0; - if (!pthread_cond::is_good_object (cond)) - return EINVAL; - - /* reads are atomic */ - if ((*cond)->waiting) - return EBUSY; - - delete (*cond); - *cond = NULL; - - return 0; -} - -int -pthread_cond::init (pthread_cond_t *cond, const pthread_condattr_t *attr) -{ - - pthread_cond_t new_cond; - - if (attr && !pthread_condattr::is_good_object (attr)) - return EINVAL; - - cond_initialization_lock.lock (); - - if (!is_good_initializer_or_bad_object (cond)) - { - cond_initialization_lock.unlock (); - return EBUSY; - } - - new_cond = new pthread_cond (attr ? (*attr) : NULL); - if (!is_good_object (&new_cond)) - { - delete new_cond; - cond_initialization_lock.unlock (); - return EAGAIN; - } - - *cond = new_cond; - cond_initialization_lock.unlock (); - - return 0; -} - -extern "C" int -pthread_cond_broadcast (pthread_cond_t *cond) -{ - if (pthread_cond::is_good_initializer (cond)) - return 0; - if (!pthread_cond::is_good_object (cond)) - return EINVAL; - - (*cond)->unblock (true); - - return 0; -} - -extern "C" int -pthread_cond_signal (pthread_cond_t *cond) -{ - if (pthread_cond::is_good_initializer (cond)) - return 0; - if (!pthread_cond::is_good_object (cond)) - return EINVAL; - - (*cond)->unblock (false); - - return 0; -} - -static int -__pthread_cond_dowait (pthread_cond_t *cond, pthread_mutex_t *mutex, - DWORD waitlength) -{ - if (!pthread_mutex::is_good_object (mutex)) - return EINVAL; - if (!pthread_mutex::can_be_unlocked (mutex)) - return EPERM; - - if (pthread_cond::is_good_initializer (cond)) - pthread_cond::init (cond, NULL); - if (!pthread_cond::is_good_object (cond)) - return EINVAL; - - return (*cond)->wait (*mutex, waitlength); -} - -extern "C" int -pthread_cond_timedwait (pthread_cond_t *cond, pthread_mutex_t *mutex, - const struct timespec *abstime) -{ - struct timeval tv; - DWORD waitlength; - - myfault efault; - if (efault.faulted ()) - return EINVAL; - - pthread_testcancel (); - - /* According to SUSv3, the abstime value must be checked for validity. */ - if (abstime->tv_sec < 0 - || abstime->tv_nsec < 0 - || abstime->tv_nsec > 999999999) - return EINVAL; - - gettimeofday (&tv, NULL); - /* Check for immediate timeout before converting to microseconds, since - the resulting value can easily overflow long. This also allows to - evaluate microseconds directly in DWORD. */ - if (tv.tv_sec > abstime->tv_sec - || (tv.tv_sec == abstime->tv_sec - && tv.tv_usec > abstime->tv_nsec / 1000)) - return ETIMEDOUT; - - waitlength = (abstime->tv_sec - tv.tv_sec) * 1000; - waitlength += (abstime->tv_nsec / 1000 - tv.tv_usec) / 1000; - return __pthread_cond_dowait (cond, mutex, waitlength); -} - -extern "C" int -pthread_cond_wait (pthread_cond_t *cond, pthread_mutex_t *mutex) -{ - pthread_testcancel (); - - return __pthread_cond_dowait (cond, mutex, INFINITE); -} - -extern "C" int -pthread_condattr_init (pthread_condattr_t *condattr) -{ - if (pthread_condattr::is_good_object (condattr)) - return EBUSY; - - *condattr = new pthread_condattr; - if (!pthread_condattr::is_good_object (condattr)) - { - delete (*condattr); - *condattr = NULL; - return ENOMEM; - } - return 0; -} - -extern "C" int -pthread_condattr_getpshared (const pthread_condattr_t *attr, int *pshared) -{ - if (!pthread_condattr::is_good_object (attr)) - return EINVAL; - *pshared = (*attr)->shared; - return 0; -} - -extern "C" int -pthread_condattr_setpshared (pthread_condattr_t *attr, int pshared) -{ - if (!pthread_condattr::is_good_object (attr)) - return EINVAL; - if ((pshared < 0) || (pshared > 1)) - return EINVAL; - /* shared cond vars not currently supported */ - if (pshared != PTHREAD_PROCESS_PRIVATE) - return EINVAL; - (*attr)->shared = pshared; - return 0; -} - -extern "C" int -pthread_condattr_destroy (pthread_condattr_t *condattr) -{ - if (!pthread_condattr::is_good_object (condattr)) - return EINVAL; - delete (*condattr); - *condattr = NULL; - return 0; -} - -extern "C" int -pthread_rwlock_destroy (pthread_rwlock_t *rwlock) -{ - if (pthread_rwlock::is_good_initializer (rwlock)) - return 0; - if (!pthread_rwlock::is_good_object (rwlock)) - return EINVAL; - - if ((*rwlock)->writer || (*rwlock)->readers || - (*rwlock)->waiting_readers || (*rwlock)->waiting_writers) - return EBUSY; - - delete (*rwlock); - *rwlock = NULL; - - return 0; -} - -int -pthread_rwlock::init (pthread_rwlock_t *rwlock, const pthread_rwlockattr_t *attr) -{ - pthread_rwlock_t new_rwlock; - - if (attr && !pthread_rwlockattr::is_good_object (attr)) - return EINVAL; - - rwlock_initialization_lock.lock (); - - if (!is_good_initializer_or_bad_object (rwlock)) - { - rwlock_initialization_lock.unlock (); - return EBUSY; - } - - new_rwlock = new pthread_rwlock (attr ? (*attr) : NULL); - if (!is_good_object (&new_rwlock)) - { - delete new_rwlock; - rwlock_initialization_lock.unlock (); - return EAGAIN; - } - - *rwlock = new_rwlock; - rwlock_initialization_lock.unlock (); - - return 0; -} - -extern "C" int -pthread_rwlock_rdlock (pthread_rwlock_t *rwlock) -{ - pthread_testcancel (); - - if (pthread_rwlock::is_good_initializer (rwlock)) - pthread_rwlock::init (rwlock, NULL); - if (!pthread_rwlock::is_good_object (rwlock)) - return EINVAL; - - return (*rwlock)->rdlock (); -} - -extern "C" int -pthread_rwlock_tryrdlock (pthread_rwlock_t *rwlock) -{ - if (pthread_rwlock::is_good_initializer (rwlock)) - pthread_rwlock::init (rwlock, NULL); - if (!pthread_rwlock::is_good_object (rwlock)) - return EINVAL; - - return (*rwlock)->tryrdlock (); -} - -extern "C" int -pthread_rwlock_wrlock (pthread_rwlock_t *rwlock) -{ - pthread_testcancel (); - - if (pthread_rwlock::is_good_initializer (rwlock)) - pthread_rwlock::init (rwlock, NULL); - if (!pthread_rwlock::is_good_object (rwlock)) - return EINVAL; - - return (*rwlock)->wrlock (); -} - -extern "C" int -pthread_rwlock_trywrlock (pthread_rwlock_t *rwlock) -{ - if (pthread_rwlock::is_good_initializer (rwlock)) - pthread_rwlock::init (rwlock, NULL); - if (!pthread_rwlock::is_good_object (rwlock)) - return EINVAL; - - return (*rwlock)->trywrlock (); -} - -extern "C" int -pthread_rwlock_unlock (pthread_rwlock_t *rwlock) -{ - if (pthread_rwlock::is_good_initializer (rwlock)) - return 0; - if (!pthread_rwlock::is_good_object (rwlock)) - return EINVAL; - - return (*rwlock)->unlock (); -} - -extern "C" int -pthread_rwlockattr_init (pthread_rwlockattr_t *rwlockattr) -{ - if (pthread_rwlockattr::is_good_object (rwlockattr)) - return EBUSY; - - *rwlockattr = new pthread_rwlockattr; - if (!pthread_rwlockattr::is_good_object (rwlockattr)) - { - delete (*rwlockattr); - *rwlockattr = NULL; - return ENOMEM; - } - return 0; -} - -extern "C" int -pthread_rwlockattr_getpshared (const pthread_rwlockattr_t *attr, int *pshared) -{ - if (!pthread_rwlockattr::is_good_object (attr)) - return EINVAL; - *pshared = (*attr)->shared; - return 0; -} - -extern "C" int -pthread_rwlockattr_setpshared (pthread_rwlockattr_t *attr, int pshared) -{ - if (!pthread_rwlockattr::is_good_object (attr)) - return EINVAL; - if ((pshared < 0) || (pshared > 1)) - return EINVAL; - /* shared rwlock vars not currently supported */ - if (pshared != PTHREAD_PROCESS_PRIVATE) - return EINVAL; - (*attr)->shared = pshared; - return 0; -} - -extern "C" int -pthread_rwlockattr_destroy (pthread_rwlockattr_t *rwlockattr) -{ - if (!pthread_rwlockattr::is_good_object (rwlockattr)) - return EINVAL; - delete (*rwlockattr); - *rwlockattr = NULL; - return 0; -} - -/* Thread signal */ -extern "C" int -pthread_kill (pthread_t thread, int sig) -{ - // lock myself, for the use of thread2signal - // two different kills might clash: FIXME - - if (!pthread::is_good_object (&thread)) - return EINVAL; - - siginfo_t si = {0}; - si.si_signo = sig; - si.si_code = SI_USER; - si.si_pid = myself->pid; - si.si_uid = myself->uid; - thread->cygtls->set_threadkill (); - int rval = sig ? sig_send (NULL, si, thread->cygtls) : 0; - - // unlock myself - return rval; -} - -extern "C" int -pthread_sigmask (int operation, const sigset_t *set, sigset_t *old_set) -{ - return handle_sigprocmask (operation, set, old_set, _my_tls.sigmask); -} - -/* ID */ - -extern "C" int -pthread_equal (pthread_t t1, pthread_t t2) -{ - return pthread::equal (t1, t2); -} - -/* Mutexes */ - -int -pthread_mutex::init (pthread_mutex_t *mutex, - const pthread_mutexattr_t *attr, - const pthread_mutex_t initializer) -{ - pthread_mutex_t new_mutex; - - if (attr && !pthread_mutexattr::is_good_object (attr)) - return EINVAL; - - mutex_initialization_lock.lock (); - - if (!is_good_initializer_or_bad_object (mutex)) - { - mutex_initialization_lock.unlock (); - return EBUSY; - } - - new_mutex = new pthread_mutex (attr ? (*attr) : NULL); - if (!is_good_object (&new_mutex)) - { - delete new_mutex; - mutex_initialization_lock.unlock (); - return EAGAIN; - } - - if (!attr && initializer) - { - if (initializer == PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP) - new_mutex->type = PTHREAD_MUTEX_RECURSIVE; - else if (initializer == PTHREAD_NORMAL_MUTEX_INITIALIZER_NP) - new_mutex->type = PTHREAD_MUTEX_NORMAL; - else if (initializer == PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP) - new_mutex->type = PTHREAD_MUTEX_ERRORCHECK; - } - - *mutex = new_mutex; - mutex_initialization_lock.unlock (); - - return 0; -} - -extern "C" int -pthread_mutex_getprioceiling (const pthread_mutex_t *mutex, - int *prioceiling) -{ - /* We don't define _POSIX_THREAD_PRIO_PROTECT because we do't currently support - mutex priorities. - - We can support mutex priorities in the future though: - Store a priority with each mutex. - When the mutex is optained, set the thread priority as appropriate - When the mutex is released, reset the thread priority. */ - return ENOSYS; -} - -extern "C" int -pthread_mutex_lock (pthread_mutex_t *mutex) -{ - if (pthread_mutex::is_good_initializer (mutex)) - pthread_mutex::init (mutex, NULL, *mutex); - if (!pthread_mutex::is_good_object (mutex)) - return EINVAL; - return (*mutex)->lock (); -} - -extern "C" int -pthread_mutex_trylock (pthread_mutex_t *mutex) -{ - if (pthread_mutex::is_good_initializer (mutex)) - pthread_mutex::init (mutex, NULL, *mutex); - if (!pthread_mutex::is_good_object (mutex)) - return EINVAL; - return (*mutex)->trylock (); -} - -extern "C" int -pthread_mutex_unlock (pthread_mutex_t *mutex) -{ - if (pthread_mutex::is_good_initializer (mutex)) - return EPERM; - if (!pthread_mutex::is_good_object (mutex)) - return EINVAL; - return (*mutex)->unlock (); -} - -extern "C" int -pthread_mutex_destroy (pthread_mutex_t *mutex) -{ - int rv; - - if (pthread_mutex::is_good_initializer (mutex)) - return 0; - if (!pthread_mutex::is_good_object (mutex)) - return EINVAL; - - rv = (*mutex)->destroy (); - if (rv) - return rv; - - *mutex = NULL; - return 0; -} - -extern "C" int -pthread_mutex_setprioceiling (pthread_mutex_t *mutex, int prioceiling, - int *old_ceiling) -{ - return ENOSYS; -} - -/* Win32 doesn't support mutex priorities - see __pthread_mutex_getprioceiling - for more detail */ -extern "C" int -pthread_mutexattr_getprotocol (const pthread_mutexattr_t *attr, - int *protocol) -{ - if (!pthread_mutexattr::is_good_object (attr)) - return EINVAL; - return ENOSYS; -} - -extern "C" int -pthread_mutexattr_getpshared (const pthread_mutexattr_t *attr, - int *pshared) -{ - if (!pthread_mutexattr::is_good_object (attr)) - return EINVAL; - *pshared = (*attr)->pshared; - return 0; -} - -extern "C" int -pthread_mutexattr_gettype (const pthread_mutexattr_t *attr, int *type) -{ - if (!pthread_mutexattr::is_good_object (attr)) - return EINVAL; - *type = (*attr)->mutextype; - return 0; -} - -/* FIXME: write and test process shared mutex's. */ -extern "C" int -pthread_mutexattr_init (pthread_mutexattr_t *attr) -{ - if (pthread_mutexattr::is_good_object (attr)) - return EBUSY; - - *attr = new pthread_mutexattr (); - if (!pthread_mutexattr::is_good_object (attr)) - { - delete (*attr); - *attr = NULL; - return ENOMEM; - } - return 0; -} - -extern "C" int -pthread_mutexattr_destroy (pthread_mutexattr_t *attr) -{ - if (!pthread_mutexattr::is_good_object (attr)) - return EINVAL; - delete (*attr); - *attr = NULL; - return 0; -} - - -/* Win32 doesn't support mutex priorities */ -extern "C" int -pthread_mutexattr_setprotocol (pthread_mutexattr_t *attr, int protocol) -{ - if (!pthread_mutexattr::is_good_object (attr)) - return EINVAL; - return ENOSYS; -} - -/* Win32 doesn't support mutex priorities */ -extern "C" int -pthread_mutexattr_setprioceiling (pthread_mutexattr_t *attr, - int prioceiling) -{ - if (!pthread_mutexattr::is_good_object (attr)) - return EINVAL; - return ENOSYS; -} - -extern "C" int -pthread_mutexattr_getprioceiling (const pthread_mutexattr_t *attr, - int *prioceiling) -{ - if (!pthread_mutexattr::is_good_object (attr)) - return EINVAL; - return ENOSYS; -} - -extern "C" int -pthread_mutexattr_setpshared (pthread_mutexattr_t *attr, int pshared) -{ - if (!pthread_mutexattr::is_good_object (attr)) - return EINVAL; - /* we don't use pshared for anything as yet. We need to test PROCESS_SHARED - *functionality - */ - if (pshared != PTHREAD_PROCESS_PRIVATE) - return EINVAL; - (*attr)->pshared = pshared; - return 0; -} - -/* see pthread_mutex_gettype */ -extern "C" int -pthread_mutexattr_settype (pthread_mutexattr_t *attr, int type) -{ - if (!pthread_mutexattr::is_good_object (attr)) - return EINVAL; - - switch (type) - { - case PTHREAD_MUTEX_ERRORCHECK: - case PTHREAD_MUTEX_RECURSIVE: - case PTHREAD_MUTEX_NORMAL: - (*attr)->mutextype = type; - break; - default: - return EINVAL; - } - - return 0; -} - -/* Semaphores */ - -/* static members */ - -int -semaphore::init (sem_t *sem, int pshared, unsigned int value) -{ - /* opengroup calls this undefined */ - if (is_good_object (sem)) - return EBUSY; - - if (value > SEM_VALUE_MAX) - return EINVAL; - - *sem = new semaphore (pshared, value); - - if (!is_good_object (sem)) - { - delete (*sem); - *sem = NULL; - return EAGAIN; - } - return 0; -} - -int -semaphore::destroy (sem_t *sem) -{ - if (!is_good_object (sem)) - return EINVAL; - - /* FIXME - new feature - test for busy against threads... */ - - delete (*sem); - *sem = NULL; - return 0; -} - -sem_t * -semaphore::open (const char *name, int oflag, mode_t mode, unsigned int value) -{ - if (value > SEM_VALUE_MAX) - { - set_errno (EINVAL); - return NULL; - } - - sem_t *sem = new sem_t; - if (!sem) - { - set_errno (ENOMEM); - return NULL; - } - - *sem = new semaphore (name, oflag, mode, value); - - if (!is_good_object (sem)) - { - delete *sem; - delete sem; - return NULL; - } - return sem; -} - -int -semaphore::wait (sem_t *sem) -{ - pthread_testcancel (); - - if (!is_good_object (sem)) - { - set_errno (EINVAL); - return -1; - } - - return (*sem)->_wait (); -} - -int -semaphore::trywait (sem_t *sem) -{ - if (!is_good_object (sem)) - { - set_errno (EINVAL); - return -1; - } - - return (*sem)->_trywait (); -} - -int -semaphore::timedwait (sem_t *sem, const struct timespec *abstime) -{ - if (!is_good_object (sem)) - { - set_errno (EINVAL); - return -1; - } - - return (*sem)->_timedwait (abstime); -} - -int -semaphore::post (sem_t *sem) -{ - if (!is_good_object (sem)) - { - set_errno (EINVAL); - return -1; - } - - (*sem)->_post (); - return 0; -} - -int -semaphore::getvalue (sem_t *sem, int *sval) -{ - myfault efault; - if (efault.faulted () || !is_good_object (sem)) - { - set_errno (EINVAL); - return -1; - } - - return (*sem)->_getvalue (sval); -} - -/* pthread_null */ -pthread * -pthread_null::get_null_pthread () -{ - /* because of weird entry points */ - _instance.magic = 0; - return &_instance; -} - -pthread_null::pthread_null () -{ - attr.joinable = PTHREAD_CREATE_DETACHED; - /* Mark ourselves as invalid */ - magic = 0; -} - -pthread_null::~pthread_null () -{ -} - -bool -pthread_null::create (void *(*)(void *), pthread_attr *, void *) -{ - return true; -} - -void -pthread_null::exit (void *value_ptr) -{ - _my_tls.remove (INFINITE); - ExitThread (0); -} - -int -pthread_null::cancel () -{ - return 0; -} - -void -pthread_null::testcancel () -{ -} - -int -pthread_null::setcancelstate (int state, int *oldstate) -{ - return EINVAL; -} - -int -pthread_null::setcanceltype (int type, int *oldtype) -{ - return EINVAL; -} - -void -pthread_null::push_cleanup_handler (__pthread_cleanup_handler *handler) -{ -} - -void -pthread_null::pop_cleanup_handler (int const execute) -{ -} - -unsigned long -pthread_null::getsequence_np () -{ - return 0; -} - -pthread_null pthread_null::_instance; |