diff options
Diffstat (limited to 'winsup/cygwin/child_info.h')
| -rw-r--r-- | winsup/cygwin/child_info.h | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/winsup/cygwin/child_info.h b/winsup/cygwin/child_info.h deleted file mode 100644 index 1dfa51bf5..000000000 --- a/winsup/cygwin/child_info.h +++ /dev/null @@ -1,185 +0,0 @@ -/* child_info.h: shared child info for cygwin - - Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2008, 2009, 2011 - Red Hat, Inc. - -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. */ - -#include <setjmp.h> - -enum child_info_types -{ - _CH_NADA = 0, - _CH_EXEC = 1, - _CH_SPAWN = 2, - _CH_FORK = 3, - _CH_WHOOPS = 4 -}; - -enum child_status -{ - _CI_STRACED = 0x01, - _CI_ISCYGWIN = 0x02, - _CI_SAW_CTRL_C = 0x04 -}; - -#define OPROC_MAGIC_MASK 0xff00ff00 -#define OPROC_MAGIC_GENERIC 0xaf00f000 - -#define PROC_MAGIC_GENERIC 0xaf00fa00 - -#define EXEC_MAGIC_SIZE sizeof(child_info) - -/* Change this value if you get a message indicating that it is out-of-sync. */ -#define CURR_CHILD_INFO_MAGIC 0x76041b78U - -#define NPROCS 256 - -#include "pinfo.h" -struct cchildren -{ - pid_t pid; - pinfo_minimal p; -}; - -/* NOTE: Do not make gratuitous changes to the names or organization of the - below class. The layout is checksummed to determine compatibility between - different cygwin versions. */ -class child_info -{ -public: - DWORD msv_count; // zeroed on < W2K3, set to pseudo-count on Vista - DWORD cb; // size of this record - DWORD intro; // improbable string - unsigned long magic; // magic number unique to child_info - unsigned short type; // type of record, exec, spawn, fork - init_cygheap *cygheap; - void *cygheap_max; - unsigned char flag; - int retry; // number of times we've tried to start child process - HANDLE subproc_ready; // used for synchronization with parent - HANDLE user_h; - HANDLE parent; - DWORD cygheap_reserve_sz; - unsigned fhandler_union_cb; - DWORD exit_code; // process exit code - static int retry_count;// retry count; - child_info (unsigned, child_info_types, bool); - child_info (): subproc_ready (NULL), parent (NULL) {} - ~child_info (); - void refresh_cygheap () { cygheap_max = ::cygheap_max; } - void ready (bool); - bool sync (int, HANDLE&, DWORD) __attribute__ ((regparm (3))); - DWORD proc_retry (HANDLE) __attribute__ ((regparm (2))); - bool isstraced () const {return !!(flag & _CI_STRACED);} - bool iscygwin () const {return !!(flag & _CI_ISCYGWIN);} - bool saw_ctrl_c () const {return !!(flag & _CI_SAW_CTRL_C);} -}; - -class mount_info; -class _pinfo; - -class child_info_fork: public child_info -{ -public: - HANDLE forker_finished;// for synchronization with child - jmp_buf jmp; // where child will jump to - void *stackaddr; // address of parent stack - void *stacktop; // location of top of parent stack - void *stackbottom; // location of bottom of parent stack - size_t guardsize; // size of POSIX guard region or (size_t) -1 if - // user stack - char filler[4]; - child_info_fork (); - void handle_fork () __attribute__ ((regparm (1)));; - bool abort (const char *fmt = NULL, ...); - void alloc_stack (); - void alloc_stack_hard_way (volatile char *); -}; - -class fhandler_base; - -class cygheap_exec_info -{ -public: - int argc; - char **argv; - int envc; - char **envp; - HANDLE myself_pinfo; - int nchildren; - cchildren children[0]; - static cygheap_exec_info *alloc (); - void record_children (); - void reattach_children (HANDLE); -}; - -class child_info_spawn: public child_info -{ - muto *lock; - HANDLE hExeced; - HANDLE ev; -public: - cygheap_exec_info *moreinfo; - int __stdin; - int __stdout; - char filler[4]; - - void cleanup (); - child_info_spawn () {}; - child_info_spawn (child_info_types, bool); - void record_children (); - void reattach_children (); - void *operator new (size_t, void *p) __attribute__ ((nothrow)) {return p;} - void set (child_info_types ci, bool b) { new (this) child_info_spawn (ci, b);} - void handle_spawn () __attribute__ ((regparm (1))); - bool set_saw_ctrl_c () - { - if (!has_execed ()) - return false; - flag |= _CI_SAW_CTRL_C; - return true; - } - bool signal_myself_exited () - { - if (!ev) - return false; - else - { - SetEvent (ev); - return true; - } - } - void wait_for_myself () { WaitForSingleObject (ev, INFINITE); } - bool has_execed () const - { - if (hExeced) - return true; - if (type != _CH_EXEC) - return false; - lock->acquire (); - lock->release (); - return !!hExeced; - } - bool has_execed_cygwin () const { return iscygwin () && has_execed (); } - operator HANDLE& () {return hExeced;} - int worker (const char *, const char *const *, const char *const [], int, - int = -1, int = -1) __attribute__ ((regparm (3)));; -}; - -extern child_info_spawn ch_spawn; - -#define have_execed ch_spawn.has_execed () -#define have_execed_cygwin ch_spawn.has_execed_cygwin () - -void __stdcall init_child_info (DWORD, child_info *, HANDLE); - -extern "C" { -extern child_info *child_proc_info; -extern child_info_spawn *spawn_info asm ("_child_proc_info"); -extern child_info_fork *fork_info asm ("_child_proc_info"); -} |