win32: enable gthreads

This commit is contained in:
zeromus 2009-07-21 00:08:52 +00:00
parent 0d36fecf93
commit f95c64cc6a
7 changed files with 1528 additions and 1 deletions

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/* GLIB - Library of useful routines for C programming
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* gthread.c: thread related functions
* Copyright 1998 Sebastian Wilhelmi; University of Karlsruhe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GLib Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GLib Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GLib at ftp://ftp.gtk.org/pub/gtk/.
*/
/*
* MT safe
*/
#include "config.h"
#include "glib.h"
#include "gthreadprivate.h"
#ifdef G_THREADS_ENABLED
static GSystemThread zero_thread; /* This is initialized to all zero */
static gboolean thread_system_already_initialized = FALSE;
static gint g_thread_priority_map [G_THREAD_PRIORITY_URGENT + 1];
#include G_THREAD_SOURCE
#ifndef PRIORITY_LOW_VALUE
# define PRIORITY_LOW_VALUE 0
#endif
#ifndef PRIORITY_URGENT_VALUE
# define PRIORITY_URGENT_VALUE 0
#endif
#ifndef PRIORITY_NORMAL_VALUE
# define PRIORITY_NORMAL_VALUE \
((PRIORITY_LOW_VALUE * 6 + PRIORITY_URGENT_VALUE * 4) / 10)
#endif /* PRIORITY_NORMAL_VALUE */
#ifndef PRIORITY_HIGH_VALUE
# define PRIORITY_HIGH_VALUE \
((PRIORITY_NORMAL_VALUE + PRIORITY_URGENT_VALUE * 2) / 3)
#endif /* PRIORITY_HIGH_VALUE */
void g_mutex_init (void);
void g_mem_init (void);
void g_messages_init (void);
void g_convert_init (void);
void g_rand_init (void);
void g_main_thread_init (void);
typedef struct _GMutexDebugInfo GMutexDebugInfo;
struct _GMutexDebugInfo
{
gchar *location;
GSystemThread owner;
};
#define G_MUTEX_DEBUG_INFO(mutex) \
(((GMutexDebugInfo*)(((char*)mutex)+G_MUTEX_SIZE)))
static GMutex *
g_mutex_new_errorcheck_impl (void)
{
GMutex *retval = g_thread_functions_for_glib_use_default.mutex_new ();
GMutexDebugInfo *info;
retval = g_realloc (retval, G_MUTEX_SIZE + sizeof (GMutexDebugInfo));
info = G_MUTEX_DEBUG_INFO (retval);
g_system_thread_assign (info->owner, zero_thread);
info->location = "invalid";
return retval;
}
static void
g_mutex_lock_errorcheck_impl (GMutex *mutex,
const gulong magic,
gchar * const location)
{
GMutexDebugInfo *info = G_MUTEX_DEBUG_INFO (mutex);
gchar *loc = (magic == G_MUTEX_DEBUG_MAGIC) ? location : "unknown";
GSystemThread self;
g_thread_functions_for_glib_use.thread_self (&self);
if (g_system_thread_equal (info->owner, self))
g_error ("Trying to recursivly lock a mutex at '%s', "
"previously locked at '%s'",
loc, info->location);
g_thread_functions_for_glib_use_default.mutex_lock (mutex);
g_system_thread_assign (info->owner, self);
info->location = loc;
}
static gboolean
g_mutex_trylock_errorcheck_impl (GMutex *mutex,
const gulong magic,
gchar * const location)
{
GMutexDebugInfo *info = G_MUTEX_DEBUG_INFO (mutex);
gchar *loc = (magic == G_MUTEX_DEBUG_MAGIC) ? location : "unknown";
GSystemThread self;
g_thread_functions_for_glib_use.thread_self (&self);
if (g_system_thread_equal (info->owner, self))
g_error ("Trying to recursivly lock a mutex at '%s', "
"previously locked at '%s'",
loc, info->location);
if (!g_thread_functions_for_glib_use_default.mutex_trylock (mutex))
return FALSE;
g_system_thread_assign (info->owner, self);
info->location = loc;
return TRUE;
}
static void
g_mutex_unlock_errorcheck_impl (GMutex *mutex,
const gulong magic,
gchar * const location)
{
GMutexDebugInfo *info = G_MUTEX_DEBUG_INFO (mutex);
gchar *loc = (magic == G_MUTEX_DEBUG_MAGIC) ? location : "unknown";
GSystemThread self;
g_thread_functions_for_glib_use.thread_self (&self);
if (g_system_thread_equal (info->owner, zero_thread))
g_error ("Trying to unlock an unlocked mutex at '%s'", loc);
if (!g_system_thread_equal (info->owner, self))
g_warning ("Trying to unlock a mutex at '%s', "
"previously locked by a different thread at '%s'",
loc, info->location);
g_system_thread_assign (info->owner, zero_thread);
info->location = NULL;
g_thread_functions_for_glib_use_default.mutex_unlock (mutex);
}
static void
g_mutex_free_errorcheck_impl (GMutex *mutex,
const gulong magic,
gchar * const location)
{
GMutexDebugInfo *info = G_MUTEX_DEBUG_INFO (mutex);
gchar *loc = (magic == G_MUTEX_DEBUG_MAGIC) ? location : "unknown";
if (info && !g_system_thread_equal (info->owner, zero_thread))
g_error ("Trying to free a locked mutex at '%s', "
"which was previously locked at '%s'",
loc, info->location);
g_thread_functions_for_glib_use_default.mutex_free (mutex);
}
static void
g_cond_wait_errorcheck_impl (GCond *cond,
GMutex *mutex,
const gulong magic,
gchar * const location)
{
GMutexDebugInfo *info = G_MUTEX_DEBUG_INFO (mutex);
gchar *loc = (magic == G_MUTEX_DEBUG_MAGIC) ? location : "unknown";
GSystemThread self;
g_thread_functions_for_glib_use.thread_self (&self);
if (g_system_thread_equal (info->owner, zero_thread))
g_error ("Trying to use an unlocked mutex in g_cond_wait() at '%s'", loc);
if (!g_system_thread_equal (info->owner, self))
g_error ("Trying to use a mutex locked by another thread in "
"g_cond_wait() at '%s'", loc);
g_system_thread_assign (info->owner, zero_thread);
loc = info->location;
g_thread_functions_for_glib_use_default.cond_wait (cond, mutex);
g_system_thread_assign (info->owner, self);
info->location = loc;
}
static gboolean
g_cond_timed_wait_errorcheck_impl (GCond *cond,
GMutex *mutex,
GTimeVal *end_time,
const gulong magic,
gchar * const location)
{
GMutexDebugInfo *info = G_MUTEX_DEBUG_INFO (mutex);
gchar *loc = (magic == G_MUTEX_DEBUG_MAGIC) ? location : "unknown";
gboolean retval;
GSystemThread self;
g_thread_functions_for_glib_use.thread_self (&self);
if (g_system_thread_equal (info->owner, zero_thread))
g_error ("Trying to use an unlocked mutex in g_cond_timed_wait() at '%s'",
loc);
if (!g_system_thread_equal (info->owner, self))
g_error ("Trying to use a mutex locked by another thread in "
"g_cond_timed_wait() at '%s'", loc);
g_system_thread_assign (info->owner, zero_thread);
loc = info->location;
retval = g_thread_functions_for_glib_use_default.cond_timed_wait (cond,
mutex,
end_time);
g_system_thread_assign (info->owner, self);
info->location = loc;
return retval;
}
/* unshadow function declaration. See gthread.h */
#undef g_thread_init
void
g_thread_init_with_errorcheck_mutexes (GThreadFunctions* init)
{
GThreadFunctions errorcheck_functions;
if (init)
g_error ("Errorcheck mutexes can only be used for native "
"thread implementations. Sorry." );
#ifdef HAVE_G_THREAD_IMPL_INIT
/* This isn't called in g_thread_init, as it doesn't think to get
* the default implementation, so we have to call it on our own.
*
* We must call this before copying
* g_thread_functions_for_glib_use_default as the
* implementation-specific init function might modify the contents
* of g_thread_functions_for_glib_use_default based on operating
* system version, C library version, or whatever. */
g_thread_impl_init();
#endif /* HAVE_G_THREAD_IMPL_INIT */
errorcheck_functions = g_thread_functions_for_glib_use_default;
errorcheck_functions.mutex_new = g_mutex_new_errorcheck_impl;
errorcheck_functions.mutex_lock =
(void (*)(GMutex *)) g_mutex_lock_errorcheck_impl;
errorcheck_functions.mutex_trylock =
(gboolean (*)(GMutex *)) g_mutex_trylock_errorcheck_impl;
errorcheck_functions.mutex_unlock =
(void (*)(GMutex *)) g_mutex_unlock_errorcheck_impl;
errorcheck_functions.mutex_free =
(void (*)(GMutex *)) g_mutex_free_errorcheck_impl;
errorcheck_functions.cond_wait =
(void (*)(GCond *, GMutex *)) g_cond_wait_errorcheck_impl;
errorcheck_functions.cond_timed_wait =
(gboolean (*)(GCond *, GMutex *, GTimeVal *))
g_cond_timed_wait_errorcheck_impl;
g_thread_init (&errorcheck_functions);
}
void
g_thread_init (GThreadFunctions* init)
{
gboolean supported;
if (thread_system_already_initialized)
g_error ("GThread system may only be initialized once.");
thread_system_already_initialized = TRUE;
if (init == NULL)
{
#ifdef HAVE_G_THREAD_IMPL_INIT
/* now do any initialization stuff required by the
* implementation, but only if called with a NULL argument, of
* course. Otherwise it's up to the user to do so. */
g_thread_impl_init();
#endif /* HAVE_G_THREAD_IMPL_INIT */
init = &g_thread_functions_for_glib_use_default;
}
else
g_thread_use_default_impl = FALSE;
g_thread_functions_for_glib_use = *init;
if (g_thread_gettime_impl)
g_thread_gettime = g_thread_gettime_impl;
supported = (init->mutex_new &&
init->mutex_lock &&
init->mutex_trylock &&
init->mutex_unlock &&
init->mutex_free &&
init->cond_new &&
init->cond_signal &&
init->cond_broadcast &&
init->cond_wait &&
init->cond_timed_wait &&
init->cond_free &&
init->private_new &&
init->private_get &&
init->private_set &&
init->thread_create &&
init->thread_yield &&
init->thread_join &&
init->thread_exit &&
init->thread_set_priority &&
init->thread_self);
/* if somebody is calling g_thread_init (), it means that he wants to
* have thread support, so check this
*/
if (!supported)
{
if (g_thread_use_default_impl)
g_error ("Threads are not supported on this platform.");
else
g_error ("The supplied thread function vector is invalid.");
}
g_thread_priority_map [G_THREAD_PRIORITY_LOW] = PRIORITY_LOW_VALUE;
g_thread_priority_map [G_THREAD_PRIORITY_NORMAL] = PRIORITY_NORMAL_VALUE;
g_thread_priority_map [G_THREAD_PRIORITY_HIGH] = PRIORITY_HIGH_VALUE;
g_thread_priority_map [G_THREAD_PRIORITY_URGENT] = PRIORITY_URGENT_VALUE;
g_thread_init_glib ();
}
#else /* !G_THREADS_ENABLED */
void
g_thread_init (GThreadFunctions* init)
{
g_error ("GLib thread support is disabled.");
}
void
g_thread_init_with_errorcheck_mutexes (GThreadFunctions* init)
{
g_error ("GLib thread support is disabled.");
}
#endif /* !G_THREADS_ENABLED */

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/* GLIB - Library of useful routines for C programming
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* gthread.c: fallback thread system implementation
* Copyright 1998 Sebastian Wilhelmi; University of Karlsruhe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GLib Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GLib Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GLib at ftp://ftp.gtk.org/pub/gtk/.
*/
/*
* MT safe
*/
static GThreadFunctions
g_thread_functions_for_glib_use_default; /* is NULLified */
static guint64 (*g_thread_gettime_impl) (void) = NULL;
#define G_MUTEX_SIZE 0

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/* GLIB - Library of useful routines for C programming
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* gthread.c: posix thread system implementation
* Copyright 1998 Sebastian Wilhelmi; University of Karlsruhe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GLib Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GLib Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GLib at ftp://ftp.gtk.org/pub/gtk/.
*/
/*
* MT safe
*/
#include "config.h"
#include <pthread.h>
#include <errno.h>
#include <stdlib.h>
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_SCHED_H
#include <sched.h>
#endif
#define posix_check_err(err, name) G_STMT_START{ \
int error = (err); \
if (error) \
g_error ("file %s: line %d (%s): error '%s' during '%s'", \
__FILE__, __LINE__, G_STRFUNC, \
g_strerror (error), name); \
}G_STMT_END
#define posix_check_cmd(cmd) posix_check_err (posix_error (cmd), #cmd)
#ifdef G_ENABLE_DEBUG
static gboolean posix_check_cmd_prio_warned = FALSE;
# define posix_check_cmd_prio(cmd) G_STMT_START{ \
int err = posix_error (cmd); \
if (err == EPERM) \
{ \
if (!posix_check_cmd_prio_warned) \
{ \
posix_check_cmd_prio_warned = TRUE; \
g_warning ("Priorities can only be changed " \
"(resp. increased) by root."); \
} \
} \
else \
posix_check_err (err, #cmd); \
}G_STMT_END
#else /* G_ENABLE_DEBUG */
# define posix_check_cmd_prio(cmd) G_STMT_START{ \
int err = posix_error (cmd); \
if (err != EPERM) \
posix_check_err (err, #cmd); \
}G_STMT_END
#endif /* G_ENABLE_DEBUG */
#if defined(G_THREADS_IMPL_POSIX)
# define posix_error(what) (what)
# define mutexattr_default NULL
# define condattr_default NULL
#elif defined(G_THREADS_IMPL_DCE)
# define posix_error(what) ((what) == -1 ? errno : 0)
# define pthread_key_create(a, b) pthread_keycreate (a, b)
# define pthread_attr_init(a) pthread_attr_create (a)
# define pthread_attr_destroy(a) pthread_attr_delete (a)
# define pthread_create(a, b, c, d) pthread_create (a, *b, c, d)
# define mutexattr_default (pthread_mutexattr_default)
# define condattr_default (pthread_condattr_default)
#else /* neither G_THREADS_IMPL_POSIX nor G_THREADS_IMPL_DCE are defined */
# error This should not happen. Contact the GLib team.
#endif
#if defined (POSIX_MIN_PRIORITY) && defined (POSIX_MAX_PRIORITY)
# define HAVE_PRIORITIES 1
static gint priority_normal_value;
# ifdef __FreeBSD__
/* FreeBSD threads use different priority values from the POSIX_
* defines so we just set them here. The corresponding macros
* PTHREAD_MIN_PRIORITY and PTHREAD_MAX_PRIORITY are implied to be
* exported by the docs, but they aren't.
*/
# define PRIORITY_LOW_VALUE 0
# define PRIORITY_URGENT_VALUE 31
# else /* !__FreeBSD__ */
# define PRIORITY_LOW_VALUE POSIX_MIN_PRIORITY
# define PRIORITY_URGENT_VALUE POSIX_MAX_PRIORITY
# endif /* !__FreeBSD__ */
# define PRIORITY_NORMAL_VALUE priority_normal_value
#endif /* POSIX_MIN_PRIORITY && POSIX_MAX_PRIORITY */
static gulong g_thread_min_stack_size = 0;
#define G_MUTEX_SIZE (sizeof (pthread_mutex_t))
#if defined(HAVE_CLOCK_GETTIME) && defined(HAVE_MONOTONIC_CLOCK)
#define USE_CLOCK_GETTIME 1
static gint posix_clock = 0;
#endif
#if defined(_SC_THREAD_STACK_MIN) || defined (HAVE_PRIORITIES) || defined (USE_CLOCK_GETTIME)
#define HAVE_G_THREAD_IMPL_INIT
static void
g_thread_impl_init(void)
{
#ifdef _SC_THREAD_STACK_MIN
g_thread_min_stack_size = MAX (sysconf (_SC_THREAD_STACK_MIN), 0);
#endif /* _SC_THREAD_STACK_MIN */
#ifdef HAVE_PRIORITIES
# ifdef G_THREADS_IMPL_POSIX
{
struct sched_param sched;
int policy;
posix_check_cmd (pthread_getschedparam (pthread_self(), &policy, &sched));
priority_normal_value = sched.sched_priority;
}
# else /* G_THREADS_IMPL_DCE */
posix_check_cmd (priority_normal_value =
pthread_getprio (*(pthread_t*)thread,
g_thread_priority_map [priority]));
# endif
#endif /* HAVE_PRIORITIES */
#ifdef USE_CLOCK_GETTIME
if (sysconf (_SC_MONOTONIC_CLOCK) >= 0)
posix_clock = CLOCK_MONOTONIC;
else
posix_clock = CLOCK_REALTIME;
#endif
}
#endif /* _SC_THREAD_STACK_MIN || HAVE_PRIORITIES */
static GMutex *
g_mutex_new_posix_impl (void)
{
GMutex *result = (GMutex *) g_new (pthread_mutex_t, 1);
posix_check_cmd (pthread_mutex_init ((pthread_mutex_t *) result,
mutexattr_default));
return result;
}
static void
g_mutex_free_posix_impl (GMutex * mutex)
{
posix_check_cmd (pthread_mutex_destroy ((pthread_mutex_t *) mutex));
g_free (mutex);
}
/* NOTE: the functions g_mutex_lock and g_mutex_unlock may not use
functions from gmem.c and gmessages.c; */
/* pthread_mutex_lock, pthread_mutex_unlock can be taken directly, as
signature and semantic are right, but without error check then!!!!,
we might want to change this therefore. */
static gboolean
g_mutex_trylock_posix_impl (GMutex * mutex)
{
int result;
result = pthread_mutex_trylock ((pthread_mutex_t *) mutex);
#ifdef G_THREADS_IMPL_POSIX
if (result == EBUSY)
return FALSE;
#else /* G_THREADS_IMPL_DCE */
if (result == 0)
return FALSE;
#endif
posix_check_err (posix_error (result), "pthread_mutex_trylock");
return TRUE;
}
static GCond *
g_cond_new_posix_impl (void)
{
GCond *result = (GCond *) g_new (pthread_cond_t, 1);
posix_check_cmd (pthread_cond_init ((pthread_cond_t *) result,
condattr_default));
return result;
}
/* pthread_cond_signal, pthread_cond_broadcast and pthread_cond_wait
can be taken directly, as signature and semantic are right, but
without error check then!!!!, we might want to change this
therefore. */
#define G_NSEC_PER_SEC 1000000000
static gboolean
g_cond_timed_wait_posix_impl (GCond * cond,
GMutex * entered_mutex,
GTimeVal * abs_time)
{
int result;
struct timespec end_time;
gboolean timed_out;
g_return_val_if_fail (cond != NULL, FALSE);
g_return_val_if_fail (entered_mutex != NULL, FALSE);
if (!abs_time)
{
result = pthread_cond_wait ((pthread_cond_t *)cond,
(pthread_mutex_t *) entered_mutex);
timed_out = FALSE;
}
else
{
end_time.tv_sec = abs_time->tv_sec;
end_time.tv_nsec = abs_time->tv_usec * (G_NSEC_PER_SEC / G_USEC_PER_SEC);
g_return_val_if_fail (end_time.tv_nsec < G_NSEC_PER_SEC, TRUE);
result = pthread_cond_timedwait ((pthread_cond_t *) cond,
(pthread_mutex_t *) entered_mutex,
&end_time);
#ifdef G_THREADS_IMPL_POSIX
timed_out = (result == ETIMEDOUT);
#else /* G_THREADS_IMPL_DCE */
timed_out = (result == -1) && (errno == EAGAIN);
#endif
}
if (!timed_out)
posix_check_err (posix_error (result), "pthread_cond_timedwait");
return !timed_out;
}
static void
g_cond_free_posix_impl (GCond * cond)
{
posix_check_cmd (pthread_cond_destroy ((pthread_cond_t *) cond));
g_free (cond);
}
static GPrivate *
g_private_new_posix_impl (GDestroyNotify destructor)
{
GPrivate *result = (GPrivate *) g_new (pthread_key_t, 1);
posix_check_cmd (pthread_key_create ((pthread_key_t *) result, destructor));
return result;
}
/* NOTE: the functions g_private_get and g_private_set may not use
functions from gmem.c and gmessages.c */
static void
g_private_set_posix_impl (GPrivate * private_key, gpointer value)
{
if (!private_key)
return;
pthread_setspecific (*(pthread_key_t *) private_key, value);
}
static gpointer
g_private_get_posix_impl (GPrivate * private_key)
{
if (!private_key)
return NULL;
#ifdef G_THREADS_IMPL_POSIX
return pthread_getspecific (*(pthread_key_t *) private_key);
#else /* G_THREADS_IMPL_DCE */
{
void* data;
posix_check_cmd (pthread_getspecific (*(pthread_key_t *) private_key,
&data));
return data;
}
#endif
}
static void
g_thread_create_posix_impl (GThreadFunc thread_func,
gpointer arg,
gulong stack_size,
gboolean joinable,
gboolean bound,
GThreadPriority priority,
gpointer thread,
GError **error)
{
pthread_attr_t attr;
gint ret;
g_return_if_fail (thread_func);
g_return_if_fail (priority >= G_THREAD_PRIORITY_LOW);
g_return_if_fail (priority <= G_THREAD_PRIORITY_URGENT);
posix_check_cmd (pthread_attr_init (&attr));
#ifdef HAVE_PTHREAD_ATTR_SETSTACKSIZE
if (stack_size)
{
stack_size = MAX (g_thread_min_stack_size, stack_size);
/* No error check here, because some systems can't do it and
* we simply don't want threads to fail because of that. */
pthread_attr_setstacksize (&attr, stack_size);
}
#endif /* HAVE_PTHREAD_ATTR_SETSTACKSIZE */
#ifdef PTHREAD_SCOPE_SYSTEM
if (bound)
/* No error check here, because some systems can't do it and we
* simply don't want threads to fail because of that. */
pthread_attr_setscope (&attr, PTHREAD_SCOPE_SYSTEM);
#endif /* PTHREAD_SCOPE_SYSTEM */
#ifdef G_THREADS_IMPL_POSIX
posix_check_cmd (pthread_attr_setdetachstate (&attr,
joinable ? PTHREAD_CREATE_JOINABLE : PTHREAD_CREATE_DETACHED));
#endif /* G_THREADS_IMPL_POSIX */
#ifdef HAVE_PRIORITIES
# ifdef G_THREADS_IMPL_POSIX
{
struct sched_param sched;
posix_check_cmd (pthread_attr_getschedparam (&attr, &sched));
sched.sched_priority = g_thread_priority_map [priority];
posix_check_cmd_prio (pthread_attr_setschedparam (&attr, &sched));
}
# else /* G_THREADS_IMPL_DCE */
posix_check_cmd_prio
(pthread_attr_setprio (&attr, g_thread_priority_map [priority]));
# endif /* G_THREADS_IMPL_DCE */
#endif /* HAVE_PRIORITIES */
ret = posix_error (pthread_create (thread, &attr,
(void* (*)(void*))thread_func, arg));
posix_check_cmd (pthread_attr_destroy (&attr));
if (ret == EAGAIN)
{
g_set_error (error, G_THREAD_ERROR, G_THREAD_ERROR_AGAIN,
"Error creating thread: %s", g_strerror (ret));
return;
}
posix_check_err (ret, "pthread_create");
#ifdef G_THREADS_IMPL_DCE
if (!joinable)
posix_check_cmd (pthread_detach (thread));
#endif /* G_THREADS_IMPL_DCE */
}
static void
g_thread_yield_posix_impl (void)
{
POSIX_YIELD_FUNC;
}
static void
g_thread_join_posix_impl (gpointer thread)
{
gpointer ignore;
posix_check_cmd (pthread_join (*(pthread_t*)thread, &ignore));
}
static void
g_thread_exit_posix_impl (void)
{
pthread_exit (NULL);
}
static void
g_thread_set_priority_posix_impl (gpointer thread, GThreadPriority priority)
{
g_return_if_fail (priority >= G_THREAD_PRIORITY_LOW);
g_return_if_fail (priority <= G_THREAD_PRIORITY_URGENT);
#ifdef HAVE_PRIORITIES
# ifdef G_THREADS_IMPL_POSIX
{
struct sched_param sched;
int policy;
posix_check_cmd (pthread_getschedparam (*(pthread_t*)thread, &policy,
&sched));
sched.sched_priority = g_thread_priority_map [priority];
posix_check_cmd_prio (pthread_setschedparam (*(pthread_t*)thread, policy,
&sched));
}
# else /* G_THREADS_IMPL_DCE */
posix_check_cmd_prio (pthread_setprio (*(pthread_t*)thread,
g_thread_priority_map [priority]));
# endif
#endif /* HAVE_PRIORITIES */
}
static void
g_thread_self_posix_impl (gpointer thread)
{
*(pthread_t*)thread = pthread_self();
}
static gboolean
g_thread_equal_posix_impl (gpointer thread1, gpointer thread2)
{
return (pthread_equal (*(pthread_t*)thread1, *(pthread_t*)thread2) != 0);
}
#ifdef USE_CLOCK_GETTIME
static guint64
gettime (void)
{
struct timespec tv;
clock_gettime (posix_clock, &tv);
return (guint64) tv.tv_sec * G_NSEC_PER_SEC + tv.tv_nsec;
}
static guint64 (*g_thread_gettime_impl)(void) = gettime;
#else
static guint64 (*g_thread_gettime_impl)(void) = 0;
#endif
static GThreadFunctions g_thread_functions_for_glib_use_default =
{
g_mutex_new_posix_impl,
(void (*)(GMutex *)) pthread_mutex_lock,
g_mutex_trylock_posix_impl,
(void (*)(GMutex *)) pthread_mutex_unlock,
g_mutex_free_posix_impl,
g_cond_new_posix_impl,
(void (*)(GCond *)) pthread_cond_signal,
(void (*)(GCond *)) pthread_cond_broadcast,
(void (*)(GCond *, GMutex *)) pthread_cond_wait,
g_cond_timed_wait_posix_impl,
g_cond_free_posix_impl,
g_private_new_posix_impl,
g_private_get_posix_impl,
g_private_set_posix_impl,
g_thread_create_posix_impl,
g_thread_yield_posix_impl,
g_thread_join_posix_impl,
g_thread_exit_posix_impl,
g_thread_set_priority_posix_impl,
g_thread_self_posix_impl,
g_thread_equal_posix_impl
};

View File

@ -0,0 +1,639 @@
/* GLIB - Library of useful routines for C programming
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* gthread.c: solaris thread system implementation
* Copyright 1998-2001 Sebastian Wilhelmi; University of Karlsruhe
* Copyright 2001 Hans Breuer
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GLib Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GLib Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GLib at ftp://ftp.gtk.org/pub/gtk/.
*/
/*
* MT safe
*/
#include "config.h"
#include "glib.h"
#define STRICT
#define _WIN32_WINDOWS 0x0401 /* to get IsDebuggerPresent */
#include <windows.h>
#undef STRICT
#include <process.h>
#include <stdlib.h>
#include <stdio.h>
#define win32_check_for_error(what) G_STMT_START{ \
if (!(what)) \
g_error ("file %s: line %d (%s): error %s during %s", \
__FILE__, __LINE__, G_STRFUNC, \
g_win32_error_message (GetLastError ()), #what); \
}G_STMT_END
#define G_MUTEX_SIZE (sizeof (gpointer))
#define PRIORITY_LOW_VALUE THREAD_PRIORITY_BELOW_NORMAL
#define PRIORITY_NORMAL_VALUE THREAD_PRIORITY_NORMAL
#define PRIORITY_HIGH_VALUE THREAD_PRIORITY_ABOVE_NORMAL
#define PRIORITY_URGENT_VALUE THREAD_PRIORITY_HIGHEST
static DWORD g_thread_self_tls;
static DWORD g_private_tls;
static DWORD g_cond_event_tls;
static CRITICAL_SECTION g_thread_global_spinlock;
typedef BOOL (__stdcall *GTryEnterCriticalSectionFunc) (CRITICAL_SECTION *);
static GTryEnterCriticalSectionFunc try_enter_critical_section = NULL;
/* As noted in the docs, GPrivate is a limited resource, here we take
* a rather low maximum to save memory, use GStaticPrivate instead. */
#define G_PRIVATE_MAX 100
static GDestroyNotify g_private_destructors[G_PRIVATE_MAX];
static guint g_private_next = 0;
/* A "forward" declaration of this structure */
static GThreadFunctions g_thread_functions_for_glib_use_default;
typedef struct _GThreadData GThreadData;
struct _GThreadData
{
GThreadFunc func;
gpointer data;
HANDLE thread;
gboolean joinable;
};
struct _GCond
{
GPtrArray *array;
CRITICAL_SECTION lock;
};
static GMutex *
g_mutex_new_win32_cs_impl (void)
{
CRITICAL_SECTION *cs = g_new (CRITICAL_SECTION, 1);
gpointer *retval = g_new (gpointer, 1);
InitializeCriticalSection (cs);
*retval = cs;
return (GMutex *) retval;
}
static void
g_mutex_free_win32_cs_impl (GMutex *mutex)
{
gpointer *ptr = (gpointer *) mutex;
CRITICAL_SECTION *cs = (CRITICAL_SECTION *) *ptr;
DeleteCriticalSection (cs);
g_free (cs);
g_free (mutex);
}
/* NOTE: the functions g_mutex_lock and g_mutex_unlock may not use
functions from gmem.c and gmessages.c; */
static void
g_mutex_lock_win32_cs_impl (GMutex *mutex)
{
EnterCriticalSection (*(CRITICAL_SECTION **)mutex);
}
static gboolean
g_mutex_trylock_win32_cs_impl (GMutex * mutex)
{
return try_enter_critical_section (*(CRITICAL_SECTION **)mutex);
}
static void
g_mutex_unlock_win32_cs_impl (GMutex *mutex)
{
LeaveCriticalSection (*(CRITICAL_SECTION **)mutex);
}
static GMutex *
g_mutex_new_win32_impl (void)
{
HANDLE handle;
HANDLE *retval;
win32_check_for_error (handle = CreateMutex (NULL, FALSE, NULL));
retval = g_new (HANDLE, 1);
*retval = handle;
return (GMutex *) retval;
}
static void
g_mutex_free_win32_impl (GMutex *mutex)
{
win32_check_for_error (CloseHandle (*(HANDLE *) mutex));
g_free (mutex);
}
/* NOTE: the functions g_mutex_lock and g_mutex_unlock may not use
functions from gmem.c and gmessages.c; */
static void
g_mutex_lock_win32_impl (GMutex *mutex)
{
WaitForSingleObject (*(HANDLE *) mutex, INFINITE);
}
static gboolean
g_mutex_trylock_win32_impl (GMutex * mutex)
{
DWORD result;
win32_check_for_error (WAIT_FAILED !=
(result = WaitForSingleObject (*(HANDLE *)mutex, 0)));
return result != WAIT_TIMEOUT;
}
static void
g_mutex_unlock_win32_impl (GMutex *mutex)
{
ReleaseMutex (*(HANDLE *) mutex);
}
static GCond *
g_cond_new_win32_impl (void)
{
GCond *retval = g_new (GCond, 1);
retval->array = g_ptr_array_new ();
InitializeCriticalSection (&retval->lock);
return retval;
}
static void
g_cond_signal_win32_impl (GCond * cond)
{
EnterCriticalSection (&cond->lock);
if (cond->array->len > 0)
{
SetEvent (g_ptr_array_index (cond->array, 0));
g_ptr_array_remove_index (cond->array, 0);
}
LeaveCriticalSection (&cond->lock);
}
static void
g_cond_broadcast_win32_impl (GCond * cond)
{
guint i;
EnterCriticalSection (&cond->lock);
for (i = 0; i < cond->array->len; i++)
SetEvent (g_ptr_array_index (cond->array, i));
g_ptr_array_set_size (cond->array, 0);
LeaveCriticalSection (&cond->lock);
}
static gboolean
g_cond_wait_internal (GCond *cond,
GMutex *entered_mutex,
gulong milliseconds)
{
gulong retval;
HANDLE event = TlsGetValue (g_cond_event_tls);
if (!event)
{
win32_check_for_error (event = CreateEvent (0, FALSE, FALSE, NULL));
TlsSetValue (g_cond_event_tls, event);
}
EnterCriticalSection (&cond->lock);
/* The event must not be signaled. Check this */
g_assert (WaitForSingleObject (event, 0) == WAIT_TIMEOUT);
g_ptr_array_add (cond->array, event);
LeaveCriticalSection (&cond->lock);
g_thread_functions_for_glib_use_default.mutex_unlock (entered_mutex);
win32_check_for_error (WAIT_FAILED !=
(retval = WaitForSingleObject (event, milliseconds)));
g_thread_functions_for_glib_use_default.mutex_lock (entered_mutex);
if (retval == WAIT_TIMEOUT)
{
EnterCriticalSection (&cond->lock);
g_ptr_array_remove (cond->array, event);
/* In the meantime we could have been signaled, so we must again
* wait for the signal, this time with no timeout, to reset
* it. retval is set again to honour the late arrival of the
* signal */
win32_check_for_error (WAIT_FAILED !=
(retval = WaitForSingleObject (event, 0)));
LeaveCriticalSection (&cond->lock);
}
#ifndef G_DISABLE_ASSERT
EnterCriticalSection (&cond->lock);
/* Now event must not be inside the array, check this */
g_assert (g_ptr_array_remove (cond->array, event) == FALSE);
LeaveCriticalSection (&cond->lock);
#endif /* !G_DISABLE_ASSERT */
return retval != WAIT_TIMEOUT;
}
static void
g_cond_wait_win32_impl (GCond *cond,
GMutex *entered_mutex)
{
g_return_if_fail (cond != NULL);
g_return_if_fail (entered_mutex != NULL);
g_cond_wait_internal (cond, entered_mutex, INFINITE);
}
static gboolean
g_cond_timed_wait_win32_impl (GCond *cond,
GMutex *entered_mutex,
GTimeVal *abs_time)
{
GTimeVal current_time;
gulong to_wait;
g_return_val_if_fail (cond != NULL, FALSE);
g_return_val_if_fail (entered_mutex != NULL, FALSE);
if (!abs_time)
to_wait = INFINITE;
else
{
g_get_current_time (&current_time);
if (abs_time->tv_sec < current_time.tv_sec ||
(abs_time->tv_sec == current_time.tv_sec &&
abs_time->tv_usec <= current_time.tv_usec))
to_wait = 0;
else
to_wait = (abs_time->tv_sec - current_time.tv_sec) * 1000 +
(abs_time->tv_usec - current_time.tv_usec) / 1000;
}
return g_cond_wait_internal (cond, entered_mutex, to_wait);
}
static void
g_cond_free_win32_impl (GCond * cond)
{
DeleteCriticalSection (&cond->lock);
g_ptr_array_free (cond->array, TRUE);
g_free (cond);
}
static GPrivate *
g_private_new_win32_impl (GDestroyNotify destructor)
{
GPrivate *result;
EnterCriticalSection (&g_thread_global_spinlock);
if (g_private_next >= G_PRIVATE_MAX)
{
char buf[100];
sprintf (buf,
"Too many GPrivate allocated. Their number is limited to %d.",
G_PRIVATE_MAX);
MessageBox (NULL, buf, NULL, MB_ICONERROR|MB_SETFOREGROUND);
if (IsDebuggerPresent ())
G_BREAKPOINT ();
abort ();
}
g_private_destructors[g_private_next] = destructor;
result = GUINT_TO_POINTER (g_private_next);
g_private_next++;
LeaveCriticalSection (&g_thread_global_spinlock);
return result;
}
/* NOTE: the functions g_private_get and g_private_set may not use
functions from gmem.c and gmessages.c */
static void
g_private_set_win32_impl (GPrivate * private_key, gpointer value)
{
gpointer* array = TlsGetValue (g_private_tls);
guint index = GPOINTER_TO_UINT (private_key);
if (index >= G_PRIVATE_MAX)
return;
if (!array)
{
array = (gpointer*) calloc (G_PRIVATE_MAX, sizeof (gpointer));
TlsSetValue (g_private_tls, array);
}
array[index] = value;
}
static gpointer
g_private_get_win32_impl (GPrivate * private_key)
{
gpointer* array = TlsGetValue (g_private_tls);
guint index = GPOINTER_TO_UINT (private_key);
if (index >= G_PRIVATE_MAX || !array)
return NULL;
return array[index];
}
static void
g_thread_set_priority_win32_impl (gpointer thread, GThreadPriority priority)
{
GThreadData *target = *(GThreadData **)thread;
g_return_if_fail (priority >= G_THREAD_PRIORITY_LOW);
g_return_if_fail (priority <= G_THREAD_PRIORITY_URGENT);
win32_check_for_error (SetThreadPriority (target->thread,
g_thread_priority_map [priority]));
}
static void
g_thread_self_win32_impl (gpointer thread)
{
GThreadData *self = TlsGetValue (g_thread_self_tls);
if (!self)
{
/* This should only happen for the main thread! */
HANDLE handle = GetCurrentThread ();
HANDLE process = GetCurrentProcess ();
self = g_new (GThreadData, 1);
win32_check_for_error (DuplicateHandle (process, handle, process,
&self->thread, 0, FALSE,
DUPLICATE_SAME_ACCESS));
win32_check_for_error (TlsSetValue (g_thread_self_tls, self));
self->func = NULL;
self->data = NULL;
self->joinable = FALSE;
}
*(GThreadData **)thread = self;
}
static void
g_thread_exit_win32_impl (void)
{
GThreadData *self = TlsGetValue (g_thread_self_tls);
guint i, private_max;
gpointer *array = TlsGetValue (g_private_tls);
HANDLE event = TlsGetValue (g_cond_event_tls);
EnterCriticalSection (&g_thread_global_spinlock);
private_max = g_private_next;
LeaveCriticalSection (&g_thread_global_spinlock);
if (array)
{
gboolean some_data_non_null;
do {
some_data_non_null = FALSE;
for (i = 0; i < private_max; i++)
{
GDestroyNotify destructor = g_private_destructors[i];
GDestroyNotify data = array[i];
if (data)
some_data_non_null = TRUE;
array[i] = NULL;
if (destructor && data)
destructor (data);
}
} while (some_data_non_null);
free (array);
win32_check_for_error (TlsSetValue (g_private_tls, NULL));
}
if (self)
{
if (!self->joinable)
{
win32_check_for_error (CloseHandle (self->thread));
g_free (self);
}
win32_check_for_error (TlsSetValue (g_thread_self_tls, NULL));
}
if (event)
{
CloseHandle (event);
win32_check_for_error (TlsSetValue (g_cond_event_tls, NULL));
}
_endthreadex (0);
}
static guint __stdcall
g_thread_proxy (gpointer data)
{
GThreadData *self = (GThreadData*) data;
win32_check_for_error (TlsSetValue (g_thread_self_tls, self));
self->func (self->data);
g_thread_exit_win32_impl ();
g_assert_not_reached ();
return 0;
}
static void
g_thread_create_win32_impl (GThreadFunc func,
gpointer data,
gulong stack_size,
gboolean joinable,
gboolean bound,
GThreadPriority priority,
gpointer thread,
GError **error)
{
guint ignore;
GThreadData *retval;
g_return_if_fail (func);
g_return_if_fail (priority >= G_THREAD_PRIORITY_LOW);
g_return_if_fail (priority <= G_THREAD_PRIORITY_URGENT);
retval = g_new(GThreadData, 1);
retval->func = func;
retval->data = data;
retval->joinable = joinable;
retval->thread = (HANDLE) _beginthreadex (NULL, stack_size, g_thread_proxy,
retval, 0, &ignore);
if (retval->thread == NULL)
{
gchar *win_error = g_win32_error_message (GetLastError ());
g_set_error (error, G_THREAD_ERROR, G_THREAD_ERROR_AGAIN,
"Error creating thread: %s", win_error);
g_free (retval);
g_free (win_error);
return;
}
*(GThreadData **)thread = retval;
g_thread_set_priority_win32_impl (thread, priority);
}
static void
g_thread_yield_win32_impl (void)
{
Sleep(0);
}
static void
g_thread_join_win32_impl (gpointer thread)
{
GThreadData *target = *(GThreadData **)thread;
g_return_if_fail (target->joinable);
win32_check_for_error (WAIT_FAILED !=
WaitForSingleObject (target->thread, INFINITE));
win32_check_for_error (CloseHandle (target->thread));
g_free (target);
}
static guint64
g_thread_gettime_impl (void)
{
guint64 v;
/* Returns 100s of nanoseconds since start of 1601 */
GetSystemTimeAsFileTime ((FILETIME *)&v);
/* Offset to Unix epoch */
v -= G_GINT64_CONSTANT (116444736000000000);
/* Convert to nanoseconds */
v *= 100;
return v;
}
static GThreadFunctions g_thread_functions_for_glib_use_default =
{
g_mutex_new_win32_impl, /* mutex */
g_mutex_lock_win32_impl,
g_mutex_trylock_win32_impl,
g_mutex_unlock_win32_impl,
g_mutex_free_win32_impl,
g_cond_new_win32_impl, /* condition */
g_cond_signal_win32_impl,
g_cond_broadcast_win32_impl,
g_cond_wait_win32_impl,
g_cond_timed_wait_win32_impl,
g_cond_free_win32_impl,
g_private_new_win32_impl, /* private thread data */
g_private_get_win32_impl,
g_private_set_win32_impl,
g_thread_create_win32_impl, /* thread */
g_thread_yield_win32_impl,
g_thread_join_win32_impl,
g_thread_exit_win32_impl,
g_thread_set_priority_win32_impl,
g_thread_self_win32_impl,
NULL /* no equal function necessary */
};
#define HAVE_G_THREAD_IMPL_INIT
static void
g_thread_impl_init ()
{
static gboolean beenhere = FALSE;
HMODULE kernel32;
if (beenhere)
return;
beenhere = TRUE;
win32_check_for_error (TLS_OUT_OF_INDEXES !=
(g_thread_self_tls = TlsAlloc ()));
win32_check_for_error (TLS_OUT_OF_INDEXES !=
(g_private_tls = TlsAlloc ()));
win32_check_for_error (TLS_OUT_OF_INDEXES !=
(g_cond_event_tls = TlsAlloc ()));
InitializeCriticalSection (&g_thread_global_spinlock);
/* Here we are looking for TryEnterCriticalSection in KERNEL32.DLL,
* if it is found, we can use the in general faster critical
* sections instead of mutexes. See
* http://world.std.com/~jmhart/csmutx.htm for some discussion.
*/
kernel32 = GetModuleHandle ("KERNEL32.DLL");
if (kernel32)
{
try_enter_critical_section = (GTryEnterCriticalSectionFunc)
GetProcAddress(kernel32, "TryEnterCriticalSection");
/* Even if TryEnterCriticalSection is found, it is not
* necessarily working..., we have to check it */
if (try_enter_critical_section &&
try_enter_critical_section (&g_thread_global_spinlock))
{
LeaveCriticalSection (&g_thread_global_spinlock);
g_thread_functions_for_glib_use_default.mutex_new =
g_mutex_new_win32_cs_impl;
g_thread_functions_for_glib_use_default.mutex_lock =
g_mutex_lock_win32_cs_impl;
g_thread_functions_for_glib_use_default.mutex_trylock =
g_mutex_trylock_win32_cs_impl;
g_thread_functions_for_glib_use_default.mutex_unlock =
g_mutex_unlock_win32_cs_impl;
g_thread_functions_for_glib_use_default.mutex_free =
g_mutex_free_win32_cs_impl;
}
}
}

View File

@ -300,6 +300,14 @@
>
</File>
</Filter>
<Filter
Name="gthread"
>
<File
RelativePath="..\glib\gthread\gthread-impl.c"
>
</File>
</Filter>
<File
RelativePath="..\glib\garray.c"
>

View File

@ -34,6 +34,7 @@
#include <vector>
#include <sstream>
#include <tchar.h>
#include "gthread.h"
#include "version.h"
#include "CWindow.h"
#include "../MMU.h"
@ -1717,13 +1718,14 @@ int WINAPI WinMain (HINSTANCE hThisInstance,
int nFunsterStil)
{
g_thread_init (NULL);
hAppInst=hThisInstance;
OpenConsole(); // Init debug console
int ret = _main();
CloseConsole();
return ret;
}