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2002-08-18* sigproc.cc (sigCONT): Define.Christopher Faylor
* sigproc.h (sigCONT): Declare. (wait_sig): Create sigCONT event here. * exceptions.cc (sig_handle_tty_stop): Wait for sigCONT event rather than stopping thread. (sig_handle): Set sigCONT event as appropriate on SIGCONT rather than calling ResumeThread.
2002-08-11* assert.cc (__assert): Call debugger on assertion failure if debugging.Christopher Faylor
* dcrt0.cc (dll_crt0_1): Just wait for signal thread to go live rather than going through the overhead of invoking it. * fork.cc (fork_child): Ditto. * exceptions.cc (signal_fixup_after_fork): Call sigproc_init here. * sigproc.cc (proc_can_be_signalled): Assume that the signal thread is live. (sig_dispatch): Ditto. (sig_send): Ditto. (wait_for_sigthread): Renamed from "wait_for_me". Assume that wait_sig_inited has been set and that this function is only called from the main thread. * winsup.h (wait_for_sigthread): Declare new function.
2002-06-02Remove unneeded sigproc.h includes throughout.Christopher Faylor
* fhandler.h (fhandler_proc::fill_filebuf): Take a pinfo argument. * fhandler_proc.cc (fhandler_proc::get_proc_fhandler): Simplify search for given pid. (fhandler_proc::readdir): Assume that pid exists if it shows up in the winpid list. * fhandler_process.cc (fhandler_process::open): Simplify search for given pid. Call fill_filebuf with pinfo argument. (fhandler_process::fill_filebuf): Pass pinfo here and assume that it exists. * pinfo.h (pinfo::remember): Define differently if sigproc.h is not included. * dll_init.cc (dll_list::detach): Don't run destructor on exit.
2002-01-13Add copyright stuffChristopher Faylor
2002-01-11* exceptions.cc (sig_handle): Accept a second argument indicating whether theChristopher Faylor
signal came from this process or not. * sigproc.h: Reflect sig_handle arg change. * signal.cc (kill_pgrp): Add sigframe info. (abort): New function. Eliminates newlib function of same name. * sigproc.cc (wait_sig): Pass "signal from this process" value as arg 2.
2001-11-03* dll_init.h (class dll_list): Reorder functions to avoid compiler "can'tChristopher Faylor
inline" warnings. * security.h (class cygsid): Ditto. * sigproc.cc (get_proc_lock): Ditto. * sigproc.h (class sigframe): Ditto. * sync.h (class muto): Ditto. * fhandler.h (fhandler_base::get_guard): Actually MAKE virtual as previously indicated. * pipe.cc (make_pipe): Remove extraneous set_errno. * syscalls.cc (_open): Ditto. * select.cc (peek_pipe): Need to check that there is still something to read from the pipe after acquiring the mutex since another process/thread could have eaten the input before we got to acquiring the lock. (Thanks to Nick Duffek for this inspiration.)
2001-10-31* sigproc.cc (sigproc_terminate): Don't signal main thread when exiting.Christopher Faylor
* sigproc.h (sigframe): Decorate some methods with `inline'. (new_muto): Coerce pointer to new to void *.
2001-09-15* dcrt0.cc (dll_crt0_1): Create vfork main storage here so that it can beChristopher Faylor
queried in waitsig later. * sigproc.cc (wait_sig): Don't deliver a signal if in a vfork. * fork.cc (vfork): Deliver all signals on parent return from vfork.
2001-09-12* sigproc.h (sigframe::unregister): Return true/false whether this frame isChristopher Faylor
capable of responding to signals. * exceptions.cc (sigframe::call_signal_handler): Don't call signal handler if it is not armed for this thread.
2001-09-08* cygheap.h (init_cygheap): Move heap pointers here.Christopher Faylor
* include/sys/cygwin.h (perprocess): Remove heap pointers. * dcrt0.cc (__cygwin_user_data): Reflect obsolete perprocess stuff. (_dll_crt0): Don't initialize heap pointers. (cygwin_dll_init): Ditto. (release_upto): Use heap pointers from cygheap. * heap.h: Ditto. * fork.cc (fork_parent): Ditto. Don't set heap pointers in ch. (fork_child): Remove obsolete sigproc_fixup_after_fork. * shared.cc (memory_init): Reorganize so that cygheap initialization is called prior to regular heap since regular heap uses cygheap now. * sigproc.cc (proc_subproc): Eliminate zombies allocation. (sigproc_init): Move zombies alloation here. Don't free up array on fork, just reuse it. (sigproc_fixup_after_fork): Eliminate. * sigproc.h: Ditto. * include/cygwin/version.h: Reflect change to perprocess structure.
2001-09-06* cygheap.h (init_cygheap): Move bucket array here from cygheap.cc.Christopher Faylor
* cygheap.cc: Throughout use bucket array from cygheap. * sigproc.cc (proc_subproc): Dynamically allocate zombie buffer to save DLL space. (sigproc_fixup_after_fork): Free zombie array after a fork. * sigproc.h (sigproc_fixup_after_fork): Declare. * dir.cc (mkdir): Expand buffer for security descriptor to 4K to avoid stack corruption. * fhandler.cc (fhandler_base::open): Ditto. * path.cc (symlink): Ditto.
2001-06-25* exceptions.cc (interrupt_setup): Move actions from setup_handler to here.Christopher Faylor
(setup_handler): Move actions after a successful interrupt to interrupt_setup. * fork.cc (vfork): Augment debugging output. * sigproc.cc (proc_subproc): Ditto. * spawn.cc (spawn_guts): Ditto. Correctly fill out progname when spawn NO_WAIT. Call signal handler when a signal arrives. * sigproc.h: Declare a function.
2001-04-27* thread.cc (thread_init_wrapper): Use _REENT_INIT to initialize the reentChristopher Faylor
structure of newlib. * sigproc.h (sig_send): Add exception parameter to sig_send. * sigproc.cc (sig_send): Ditto. Use it when setting frame info. * exceptions.cc (handle_exceptions): Use exception flag when calling sig_send.
2001-04-25* sigproc.h [sigthread]: Add exception field.Christopher Faylor
[sigframe::~sigframe]: Clear exception field. [sigframe::set]: Set exception field from caller. * sigproc.cc (sig_send): Set exception field when frame pointer is passed in. * exceptions.cc (interrupt_on_return): Always treat exception as interruptible.
2001-04-09* Makefile.in: Put -lgcc last in list of libraries, since stdc++ library needsChristopher Faylor
it. * cygwin.din: Remove obsolete "__empty" export. * exceptions.cc (call_signal_handler_now): Force inclusion of function even when -finline-functions is specified. * sigproc.h: Remove obsolete call_signal_handler declaration. * fhandler_console.cc (cp_get_internal): New function. (cp_convert): New function. (con_to_str): New function. (str_to_con): New function. (fhandler_console::read): Replace OemToCharBuff with con_to_str. (fhandler_console::write_normal): Replace CharToOemBuff with str_to_con.
2001-04-02* exceptions.cc (sigframe::call_signal_handler): Return value ofChristopher Faylor
call_signal_handler_now. * sigproc.h (sigframe): Use constructor. * syscalls.cc (_read): Correct errno test prior to calling signal handler.
2001-04-01* sigproc.h (class sigframe): Implement 'unregister()' method.Christopher Faylor
(sigframe::~sigframe): Use unregister method. (sigframe::call_signal_handler): Declare new method. * exceptions.cc (sigframe::call_signal_handler): New method. Unregisters current sigframe before calling signal handler. (setup_handler): Clear waiting threads prior to arming signal_arrived. * syscalls.cc (_read): Change goto to loop. Recalculate sigframe inside of loop so that constructor is called when appropriate. * wait.cc (wait4): Ditto. * signal.cc: Change "sig" to "signal" in debugging messages throughout. * sigproc.cc: Ditto.
2001-03-11* shortcut.c (PATH_ALL_EXEC): Add parentheses to avoid a compiler warning.Christopher Faylor
* exceptions.cc (setup_handler): Clarify debugging message. * sigproc.cc (proc_subproc): Remove PROC_CHILDSTOPPED test. It is handled by normal PROC_CLEARWAIT case. (wait_sig): Eliminate "dispatched" tracking. Remove __SIGCHILDSTOPPED test. Decrement counter again before jumping out of InterlockedDecrement loop so that subsequent InterlockedIncrement will keep the counter at the correctly decremented value and also detect when there are pending signals. * sigproc.h: Remove __SIGCHILDSTOPPED element. (procstuff): Remove PROC_CHILDSTOPPED element.
2001-03-07* sigproc.h (sigthread): Declare new methods. Create new winapi_lock field.Christopher Faylor
(sigframe:;set): Call get_winapi_lock after frame is set so that signal handler thread knows not to call SuspendThread. (sigframe::~sigframe): Release winapi_lock. * exceptions.cc (sigthread::get_winapi_lock): New method. (sigthread::release_winapi_lock): New method. (setup_handler): Use get_winapi_lock to ensure that signalled thread is not blocked in a Windows API. * path.h (path_types): Avoid broken GCC warning.
2001-01-12* debug.h: Add regparm attributes to some functions.Christopher Faylor
* signal.cc (sigaction): Don't treat SIGCONT specially. * exceptions.cc (interrupt_setup): Save sa_flags of interrupted signal for later use. (sig_handler): Default any stopping signal to SIGSTOP. (call_signal_handler): New function. (sigdelayed0): New function. * sigproc.cc (sigproc_init): Initialize SIGSTOP sigaction for special behavior. * sigproc.h: Define call_signal_handler. * syscalls.cc (_read): Allow restartable signal behavior.
2001-01-08* pinfo.cc (codepage_init): Move function.Christopher Faylor
* environ.cc (codepage_init): To here. * exceptoins.cc (SIG_NONMASKABLE): Remove SIGCONT from consideration since it is supposed to be maskable. * signal.cc (sigaction): Ditto. * sigproc.cc (wait_sig): Ditto. * winsup.h: Eliminate global declaration of codepage_init.
2000-11-15Throughout use myself->ppid_handle rather than parent_alive.Christopher Faylor
* child_info.h (child_info): Eliminate parent_alive. * dcrt0.cc (dll_crt0_1): Call fork_init for debugging pid creation. * fork.cc (fork_child): Reflect change to fixup_mmaps_after_fork arguments. (slow_pid_reuse): New function to grab last 'n' pids to prevent pid reuse. (fork_parent): Move last_fork_proc into slow_pid_reuse. Handle fork_pids debugging. Eliminate unnecessary call to set_child_mmap_ptr. (fork_init): New debugging function. * mmap.cc (fixup_mmaps_after_fork): Renamed from recreate_mmaps_after_fork. Rely on copied data after a fork. (set_child_mmap_ptr): Eliminate. * pinfo.h (_pinfo): Eliminate parent_alive, mmap_ptr and reflect above changes. * spawn.cc (spawn_guts): Eliminate vestiges of "old way" of sending new hProc to parent process.
2000-11-12* path.h: Add __attribute__ ((regparm(x))) to commonly used functions.Christopher Faylor
* pinfo.h: Ditto. * sigproc.h: Ditto. * sync.h: Ditto.
2000-11-07* dcrt0.cc (sigthread::init): Reinstitute sigthread lock as a critical section.Christopher Faylor
(dll_crt0_1): Move sigthread lock initialization to earlier in startup. * exceptions.cc (interrupt_on_return): Remove previous kludgy attempt to detect an invalid frame. (call_handler): Eliminate inner for loop. Grab signal critical section lock where appropriate. * sigproc.cc (proc_subproc): Restore uid setting. * sigproc.h (sigthread): Reinstitute sigthread lock as a critical section. (sigframe): Grab the sigthread lock before clearing frame to avoid having the signal thread use an invalid frame.
2000-11-04* pinfo.cc (EnumProcessesNT): Avoid 0 pids.Christopher Faylor
(EnumProcesses9x): Ditto. * sigproc.cc (remove_childe): Eliminate. (proc_subproc): Move remove_child stuff here. (wait_subproc): Synchronize with proc_subproc when error occurs. Add more debugging info. * sigproc.h (procstuff): Add an entry. * spawn.cc (spawn_guts): Add sigframe here.
2000-10-28Whitespace cleanup.Christopher Faylor
* configure.in: Eliminate subdir stuff. * configure: Regenerate. * include/getopt.h (option): Make name field 'const'.
2000-10-19* dcrt0.cc (sigthread::init): Correct overzealous ifdef.Christopher Faylor
* exceptions.cc (call_handler): Avoid calling sigthread acquire lock. * sigproc.h (sigthread): Comment out lock for now. * sync.cc (muto::acquire): Add a minor optimization.
2000-10-19* sigproc.h (sigthread): Eliminate locking for now since per thread signallingChristopher Faylor
is not available. * dcrt0.cc (sigthread::init): Ditto. (dll_crt0_1): Move set_process_privileges call (temporarily?) to pinfo_init. (pinfo_init): Only call set_process_privileges when allow_ntsec.
2000-10-17* Makefile.in: Remove some obsolete stuff.Christopher Faylor
* dcrt0.cc (dll_crt0_1): Call signal_fixup_after_exec where appropriate. Set myself->uid from parent version. Just use ThreadItem Init method. Close or store hexec_proc as appropriate. (_dll_crt0): Store user_data->forkee here so that proper tests can be made subsequently. (do_exit): Remove hExeced stuff. * environ.cc (environ_init): Accept environ count as well as environ pointer. * environ.h: Reflect above change. * pinfo.cc (pinfo_init): Ditto. Accept environ count. (fixup_in_spawned_child): Remove. * spawn.cc (spawn_guts): Move signal code to dll_crt0_1. Don't suspend execing process since it is no longer necessary. Store envc. * exceptions.cc (signal_fixup_after_exec): New function. (call_handler): Remove hExeced test. * child_info.h (cygheap_exec_info): Store envc as well as envp. (child_info_spawn): Store hexec_proc so that it can be closed in child. * path.cc (normalize_posix_path): Avoid intermediate use of temporary cwd buf. (normalize_win32_path): Ditto. (cwdstuff::get_initial): Always set lock. * sigproc.h: Remove hExeced. * strace.cc (strace::vsprntf): Modify to accomodate for lack of hExeced. * thread.cc (MTinterface::Init): Merge Init1 and ClearReent into this method. (MTinterface::Init1): Eliminate. (MTinterface::ClearReent): Eliminate. * thread.h: Reflect above changes. * include/sys/strace.h (strace): Make microseconds() public. Make various functions 'regparm', throughout. * pinfo.h (_pinfo): Inline simple signal manipulation functions. Requires inclusion of thread.h which was removed from .cc files, where appropriate. throughout. * pinfo.cc: Eliminate signal manipulation functions. (_pinfo::exit): Calculate total rusage for exiting process here. * cygheap.cc (size2bucket): Eliminate. (init_buckets): Ditto. (_cmalloc): Calculate size and bits in a loop rather than going through a function call. (_crealloc): Use stored array index to calculate allocated size. * spawn.cc (spawn_guts): Use _pinfo exit method to exit, calculating cpu usage.
2000-10-15* exceptions.cc (set_console_handler): Don't allocateChristopher Faylor
console_handler_thread_waiter. It is obsolete. (ctrl_c_handler): Don't use console_handler_thread_waiter. * path.cc (hash_path_name): Fix handling of relative names. Make case insensitive. * path.h (suffix_info): Use initializers. * pinfo.h (_pinfo): Avoid initializers for null case. * resource.cc (fill_rusage): Zero rest of rusage structure. * security.cc (set_process_privileges): Don't reopen parent process. Just use hMainProc. * signal.cc (signal): Track when a signal handler has been used. (sigaction): Ditto. * sigproc.cc (pchildren): Use default initializer. (zombies): Ditto. (sigproc_terminate): Avoid closing handles that will be closed on exit anyway. (wait_sig): Send signal to "parent" on EXECing, not FORKing. (wait_subproc): Send SIGCHLD here rather than in proc_wait to avoid potential muto conflicts. * sigproc.h (sigthread): Don't initialize to zero. It's the default. * spawn.cc (spawn_guts): Fill in resources from exec parent prior to termination. * sync.h (muto): Don't initialize to zero. * syscalls.cc (close_all_files): Use one lock around entire loop and call fhandler close/release stuff directly. (_read): Don't use ready_for_read if there are not signal handlers active. * dcrt0.cc (dll_crt0_1): Fix display of "title". (do_exit): Use pinfo exit method to exit. (__api_fatal): Ditto. * exceptions.cc (signal_exit): Ditto. * fork.cc (fork_child): Remove debugging stuff. Use pinfo_fixup_after fork in place of exec_fixup_after_fork. * pinfo.cc (pinfo_fixup_after_fork): New method. (pinfo_fixup_in_spawned_child): Ditto. (_pinfo::exit): New method. (_pinfo::init): Remove recursion. Detect pathological case where pinfo structure already exists for new pid. * pinfo.h (_pinfo): Reorganize slightly. Add new method and new function declarations. * sigproc.cc (proc_exists): Previous simplification was a little to simple. Try harder to detect if a process exists. (proc_terminate): Use PID_EXITED setting to determine if process is still around. (WFSO): Remove debugging statement. (WFMO): Ditto. * spawn.cc (exec_fixup_after_fork): Eliminate. (spawn_guts): Always set old_title to NULL. Is it really needed? Move hexec_proc to pinfo.cc. Call pinfo_fixup_in_spawned_child to eliminate handle link after a spawn. * include/sys/cygwin.h: Remove PID_NOT_IN_USE. Add PID_EXITED.
2000-10-12* errno.cc (seterrno_from_win_error): Fix debugging output.Christopher Faylor
* fhandler.cc (fhandler_base::fstat): Move to inline method in fhandler.h. (fhandler_base::set_io_handle): Ditto. * fhandler.h (fhandler_base): Make some methods inline. * fhandler_console.cc (fhandler_console::write_normal): Make buffer larger. * sigproc.h (sigframe::sigframe): Actually use set ebp parameter correctly. * spawn.cc (spawn_guts): Set dwProcessId when exec'ing. Just exit immediately after reparenting. * syscalls.cc: Sprinkle sigframe stuff throughout. * wait.cc (wait4): Set signal frame here. * dcrt0.cc (__api_fatal): Don't rely on small_printf to display errors. Always display problems to the console, if possible.
2000-10-05* exceptions.cc (interruptible): Add extra debugging.Christopher Faylor
* sigproc.h (wait_sig): Fill in frame pointer, by default, prior to calling or suffer confusion due to September 7 change below.
2000-09-16* exceptions.cc (handle_exceptions): Just "core dump" if SIGSEGV in signalChristopher Faylor
thread. * external.cc (fillout_pinfo): Fix compiler warning. * sigproc.h: Eliminate special asm naming for sig_dispatch_pending. * sigproc.cc (sig_send): Remove debugging statements.
2000-09-08* sigproc.h (sigframe::set): Eliminate second argument. Default bp to currentChristopher Faylor
frame pointer rather than using this within the function, which is unstable when this method is not inlined. * net.cc: Eliminate use of second argument to sigframe.set throughout. * select.cc (cygwin_select): Ditto. * sigproc.cc (sig_send): Ditto.
2000-09-08Break out more header info into separate files. Use appropriate header filesChristopher Faylor
throughout. * shared.h: Remove. * cygwin_version.h: New file. * delqueue.h: New file. * environ.h: New file. * host_dependent.h: New file. * perprocess.h: New file. * registry.h: New file. * security.h: New file.
2000-09-02* sigproc.cc (proc_info): Rename proc_exists which takes a pid to "pid_exists".Christopher Faylor
* shared.h: Split out "child_info" stuff into a new header file and use where necessary. Declare pid_exists. * child_info.h: New file.
2000-08-29* signal.cc (_raise): New function.Christopher Faylor
* exceptions.cc (unused_sig_wrapper): Remove _raise. * sigproc.h (class sigframe): Default frames to skip to zero or suffer from exuberant optimization. * fhandler_tty.cc (fhandler_tty::write): Set appropriate errno when WriteFile to pipe fails.
2000-08-22* winsup.h: Eliminate inclusion of most of the cygwin .h files. Use .h filesChristopher Faylor
only in sources which require them. * Makefile.in: Generate dependencies with -MD option.
2000-08-12* winsup.h: Split out dtable definitions into separate header file.Christopher Faylor
* dtable.h: New file. * sigproc.h: Eliminate pinfo.h usage here. Use it in source files that need it.
2000-07-29* include/cygwin/version.h: Bump DLL minor version number to 5 due to all ofChristopher Faylor
the changes below. Redefine process structure to avoid a fixed size table. Redefine pinfo/_pinfo classes. Use these throughout. * dcrt0.cc (dll_crt0_1): Accomodate set_myself argument change. (__api_fatal): Accomodate _pinfo::record_death argument change. * exceptions.cc (really_exit): Ditto. (sig_handle_tty_stop): Use pinfo constructor to access process info. (events_init): Don't create pinfo_mutex since it is no longer required. * external.cc (fillout_pinfo): Use winpids class to iterate over all system pids. (cygwin_internal): lock_pinfo_for_update and unlock_pinfo are now noops. * fhandler_termios.cc (fhandler_termios::set_ctty): Use pinfo constructor to access process info. * fork.cc (fork): Reorganize to initialize child info after the child has started since that is when we know the child's winpid, which is necessary to allocate the pinfo shared memory. * mmap.cc (recreate_mmaps_after_fork): Change arg type to _pinfo. * pinfo.cc: Rename pinfo methods to _pinfo throughout. Eliminate pinfo_list stuff. (set_myself): Accept a pid argument now. Call pinfo initializer to initialize myself. Detect when this is an "execed" process and create an "indirect" pid block. (pinfo_init): Accomodate set_myself arg change. (procinfo): Remove. (pinfo::lock_pinfo): Remove. (pinfo::unlock_pinfo): Remove. (pinfo::init): New method. Allocates shared memory space for process pinfo structure. (pinfo::record_death): Don't call locking functions. (cygwin_winpid_to_pid): Simplify by using new pinfo constructor. (EnumProcessesW95): New function for iterating over processes on Windows 95. (winpids::winpids): New constructor for winpids class. Sets up a list of process ids. (enum_init): Initialize w95/wnt pid enumerators. * shared.cc (shared-info::initialize): Remove pid initialization. * shared.h: Move pinfo stuff into pinfo.h. (class shared_info): Remove pinfo_list element. * signal.cc (kill_worker): Use pinfo constructor to access process info. (kill_pgrp): Ditto. Use winpids methods to access list of processes. * sigproc.cc: Throughout, modify to use _pinfo where appropriate. (proc_exists (pid_t)): New function. Determines if a process exists based on the pid. (proc_exists (_pinfo *p): Use new proc_exists function above. (proc_subproc): Copy pinfo stuff around rather than _pinfo pointers. Try to be careful about releasing shared memory when we don't need it anymore. Remove pinfo locks. (remove_zombies): Remove pinfo memory when zombie is going away. * sigproc.h: Reflect _pinfo/pinfo changes in sigproc.cc. * spawn.cc (spawn_guts): Eliminate pinfo *child argument. Reorganize to only initialize child pinfo after process has been started and we know the windows pid. (_spawnve): Reflect spawn_guts changes. * syscalls.cc (setpgid): Use pinfo constructor to access process info. (getpgid): Ditto. (internal_getlogin): Use _pinfo. * winsup.h: Eliminate pinfo_mutex. Eliminate spawn_guts declaration since it is static now. Reflect set_myself argument change. * include/sys/cygwin.h: Add some PID_* enums to accomodate new pinfo stuff. * include/cygwin/version.h: Update minor version for cygdrive changes below.
2000-05-26* sigproc.h (sigframe::set): Accept a default frame pointer.Christopher Faylor
* sigproc.cc (sig_send): Use passed in frame pointer, if appropriate.
2000-05-19* Makefile.in: Remove external.h dependency.Christopher Faylor
* dcrt0.cc (sigthread::init): Move here from sigproc.h. * sigproc.h (sigthread): Move init to dcrt0.cc.
2000-05-18* sigproc.h (sigframe): Don't set frame info unless tid matches this thread id.Christopher Faylor
2000-05-18* dcrt0.cc (dll_crt0_1): Initialize mainthread stuff here before anything needsChristopher Faylor
it. * sigproc.cc (sigproc_init): Move mainthread initialization out of here. * sigproc.h (sigthread): Add init() method. (sigframe): Don't try to initialize muto. * sync.cc: Undef WaitForSingleObject to avoid recursion.
2000-05-17* path.cc (mount_info::cygdrive_posix_path): Don't add trailing slash ifChristopher Faylor
referring to something like c:\. * dcrt0.cc (dll_crt0_1): Move uinfo initialization prior to sig_send initialization to give signal thread a chance to finish. * debug.cc (WFSO): Move to sigproc.cc (WFMO): Ditto. * exceptions.cc (interruptible): Allocate slightly more space for directory just for paranoia's sake. (call_handler): Eliminate nonmain argument. Determine if main thread has set a frame pointer and use it if so. (sig_handle): Eliminate nonmain argument. * net.cc: Record frame information in appropriate routines throughout. * select.cc (select): Ditto. * sigproc.cc: Use sigthread structure to record mainthread id throughout. (sig_send): Record frame information for signal handler. (wait_sig): Reflect argument change in sig_handle. (WFSO): Move here and record frame information for signal handler. (WFMO): Ditto. * sigproc.h: Implement new "sigthread" class. Implement "sigframe" class for manipulating signal frame info. * thread.cc (__pthread_kill): Use standard _kill() function rather than calling sig_send directly. * winsup.h: Eliminate ebp element from signal_dispatch class.
2000-04-08* exceptions.cc (sigsave): Copy on fork so that we can restore correct behaviorChristopher Faylor
in forked process. (interruptible): Flag as interruptible when running in main process module. (interrupt_setup): Save return address and address of return address. (signal_fixup_after_fork): New function. Uses above two values to restore proper behavior to forked process. (interrupt_on_return): Pass return address address to interupt_setup. (interrupt_now): Pass NULL for return address address to interrupt_setup. * fork.cc (fork): Call signal_fixup_after_fork. * shared.h: Lint cleanups. * winsup.h: Ditto.
2000-03-10* environ.cc: Eliminate oldstack CYGWIN option.Christopher Faylor
* exceptions.cc (sfta): Eliminate obsolete function. (sgmb): Eliminate obsolete function. (class stack_info): Remove MS method for walking the stack. (stack_info::init): Just initialize required fields. (stack_info::brute_force): Rename to stack_info::walk. (handle_exceptions): Pass derived frame pointer to sig_send. (interrupt_setup): Clear saved frame pointer here. (interrupt_on_return): thestack is no longer a pointer. (call_handler): Accept a flag to indicate when a signal was sent from other than the main thread. Use saved frame pointer for determining where to place signal handler call. (sig_handle): Accept "nonmain" argument. Pass it to call_handler. * fhandler_tty.cc (fhandler_tty_common::__acquire_output_mutex): Change debugging output slightly. * (fhandler_tty_common::__release_output_mutex): Ditto. (fhandler_tty_slave::read): Fix a comment, remove a goto. * sigproc.cc (sig_send): Accept an optional frame pointer argument for use when suspending the main process. sigcomplete_main is an autoreset event now. Save frame pointer for non-main operation. (wait_sig): Make sigcomplete_main an autoreset event. Eliminate NOSIGQUEUE. Pass rc to sig_handle to signify if this was a nonmain process. * sigproc.h: Reflect change to sig_send argument. * syscalls.cc (swab): Eliminate swab function since it is now available in newlib. * winsup.h (signal_dispatch): Change CONTEXT cx to DWORD ebp.
2000-02-24Fix final round of gcc warnings relating to unused parameters.Christopher Faylor
* debug.cc (iscygthread): New function. * debug.h: Declare it. * exceptions.cc (set_process_mask): Flush pending signals. (handle_sigsuspend): No need to flush pending signals. (call_handler): Refine previous tests of muto ownership. Only clear wait()'s when we have definitely responded to a signal. * fhandler_console.cc (fhandler_console::read): Don't set EINTR if executing in a "cygwin" thread. * sigproc.cc (proc_subproc): Use second argument to control whether CLEARWAIT actually sets "signalled" flag. * sync.h (muto): Add 'unstable' method.
2000-02-24* exceptions.cc (interruptible): Change method for determining if something isChristopher Faylor
interruptible. (call_handler): Avoid suspending a thread if it owns a mutex. Only set signal_arrived if the thread was actually interrupted. (events_init): Initialize module information needed by interruptible(). (sigdelayed): Don't call sig_dispatch_pending since it could screw up * init.cc (dll_entry): Record module handle of main for use by interruptible(). (proc_subproc): Reorganize handling of terminated child so that the bulk of the processing comes from the signal thread. (wait_sig): Force processing of waiting threads if SIGCHLD is not processed. * sync.cc (muto::release): Set tid == 0 after lock is released or signal processor will be confused.
2000-02-17import winsup-2000-02-17 snapshotChristopher Faylor