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newlib/winsup/cygwin/init.cc

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import winsup-2000-02-17 snapshot
2000-02-17 20:38:33 +01:00
/* init.cc for WIN32.
* exceptions.cc (interruptible): Change method for determining if something is 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.
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Copyright 1996, 1997, 1998, 1999, 2000 Cygnus Solutions.
import winsup-2000-02-17 snapshot
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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 "winsup.h"
* winsup.h: take out protections of environ, errno, allow C use * *.cc: put winsup.h before other headers (for __INSIDE_CYGWIN__); use cur_environ() instead of just environ * times.cc: remove import protections * glob.c: add winsup.h * localtime.c: ditto * smallprint.c: ditto * Makefile.in: don't __INSIDE_CYGWIN__ as it messes up profiling.
2000-08-02 18:28:18 +02:00
#include <stdlib.h>
* winsup.h: Eliminate inclusion of most of the cygwin .h files. Use .h files only in sources which require them. * Makefile.in: Generate dependencies with -MD option.
2000-08-22 07:10:20 +02:00
#include "thread.h"
Break out more header info into separate files. Use appropriate header files 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.
2000-09-08 04:56:55 +02:00
#include "perprocess.h"
import winsup-2000-02-17 snapshot
2000-02-17 20:38:33 +01:00
* exceptions.cc (interruptible): Change method for determining if something is 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.
2000-02-24 03:49:44 +01:00
extern HMODULE cygwin_hmodule;
import winsup-2000-02-17 snapshot
2000-02-17 20:38:33 +01:00
int NO_COPY dynamically_loaded;
* exceptions.cc (interruptible): Change method for determining if something is 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.
2000-02-24 03:49:44 +01:00
extern "C" int
WINAPI dll_entry (HANDLE h, DWORD reason, void *static_load)
import winsup-2000-02-17 snapshot
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{
switch (reason)
{
case DLL_PROCESS_ATTACH:
* exceptions.cc (interruptible): Change method for determining if something is 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.
2000-02-24 03:49:44 +01:00
cygwin_hmodule = (HMODULE) h;
import winsup-2000-02-17 snapshot
2000-02-17 20:38:33 +01:00
dynamically_loaded = (static_load == NULL);
break;
case DLL_THREAD_ATTACH:
* init.cc (dll_entry): Use better check for determining when to set thread specific stuff. * syscalls.cc (_unlink): Continue with chmod'ing file even if DELETE_ON_CLOSE succeeds, if file still exists.
2000-04-17 00:57:05 +02:00
if (user_data->threadinterface)
* fhandler_console.cc (keytable): Add support for keypad 5 key, which MS seems to think is equivalent to VK_CLEAR. * debug.cc (thread_stub): Eliminate initialization of reent stuff. * init.cc (dll_entry): Move it here.
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{
* path.cc (readlink): Check if buffer length is positive. Truncate output to buffer length. Don't terminate buffer with '\0'.
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if (!TlsSetValue(user_data->threadinterface->reent_index,
* Makefile.in: Add cygheap.o. * child_info.h: Add specific exec class. * cygheap.h: New file. Contains declarations for cygwin heap. * cygheap.cc: New file. Implements cygwin heap functions. * dcrt0.cc (quoted): Simplify due to new method for passing arguments between cygwin programs. (alloc_stack_hard_way): Attempt to handle overlapped stack. (dll_crt0_1): Move child_info processing here. Accomodate new method for passing arguments between cygwin programs. Initialize cygwin heap. Establish __argc and __argv variables. (_dll_crt0): Move most of child_info processing to dll_crt0_1. (cygwin_dll_init): Remove duplication. * dtable.cc (dtable::extend): Allocate dtable using cygwin heap. (dtable::build_fhandler): Ditto for fhandler type being constructed. (dtable::dup_worker): Free new fhandler from cygwin heap on error. (dtable::select_*): Don't assume that this == fdtab. (dtable::linearize_fd_array): Delete. (dtable::delinearize_fd_array): Delete. (dtable::fixup_after_exec): New file. (dtable::vfork_child_dup): Use cygwin heap. (dtable::vfork_parent_restore): Ditto. * dtable.h: Remove obsolete methods. Add new method. * environ.cc (posify): Eliminate already_posix parameter and logic. (envsize): New function. (_addenv): Use envsize. (environ_init): Accept an argument pointing to an existing environment list. If supplied, allocate space for this in the the program's heap. * fhandler.cc (fhandler_base::operator =): Move here from fhandler.h. Use cygwin heap to allocate filenames. (fhandler_base::set_name): Allocate/free names from cygwin heap. (fhandler_base::linearize): Delete. (fhandler_base::de_linearize): Delete. (fhandler_base::operator delete): Free from cygwin heap. (fhandler_base::~fhandler_base): Ditto. * fhandler.h: Accomodate elimination of *linearize and other changes above. * fhandler_console.cc (fhandler_console::fixup_after_exec): Rename from de_linearize. * heap.h: New file. * fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Use cygwin heap for name. fhandler_tty::fixup_after_exec): Rename from de_linearize. * fork.cc (fork): Call cygheap_fixup_in_child. * heap.cc: Use declarations in heap.h. * malloc.cc: Sprinkle assertions throughout to catch attempts to free/realloc something from the cygwin heap. * path.cc: Throughout, eliminate use of per-thread cache for cwd. Use cwd_* functions rather than cwd_* variables to access cwd_win32 and cwd_posix. (cwd_win32): New function. (cwd_posix): New function. (cwd_hash): New function. (cwd_fixup_after_exec): New function. * path.h: Accomodate path.cc changes. * pinfo.cc (pinfo_init): Accept a pointer to an environment table. Pass this to environ_init. Eliminate old 'title' tests. * pinfo.h: Accomodate above change in argument. * spawn.cc (struct av): New method for building argv list. (av::unshift): New method. (spawn_guts): Allocate everything that the child process needs in the cygwin heap and pass a pointer to this to the child. Build argv list using new method. Eliminate delinearize stuff. * thread.h: Eliminate _cwd_win32 and _cwd_posix buffers. * winsup.h: Eliminate obsolete functions. Add envsize() declaration.
2000-09-03 06:16:35 +02:00
&user_data->threadinterface->reents))
* fhandler_console.cc (keytable): Add support for keypad 5 key, which MS seems to think is equivalent to VK_CLEAR. * debug.cc (thread_stub): Eliminate initialization of reent stuff. * init.cc (dll_entry): Move it here.
2000-04-15 05:52:24 +02:00
api_fatal("Sig proc MT init failed\n");
}
import winsup-2000-02-17 snapshot
2000-02-17 20:38:33 +01:00
break;
case DLL_PROCESS_DETACH:
break;
case DLL_THREAD_DETACH:
#if 0 // FIXME: REINSTATE SOON
waitq *w;
if ((w = waitq_storage.get ()) != NULL)
{
if (w->thread_ev != NULL)
{
system_printf ("closing %p", w->thread_ev);
(void) CloseHandle (w->thread_ev);
}
memset (w, 0, sizeof(*w)); // FIXME: memory leak
}
// FIXME: Need to add other per_thread stuff here
#endif
break;
}
return 1;
}