diff options
Diffstat (limited to 'src/3rd_party/dbus-1.7.8/dbus/dbus-sysdeps-pthread.c')
-rw-r--r-- | src/3rd_party/dbus-1.7.8/dbus/dbus-sysdeps-pthread.c | 302 |
1 files changed, 0 insertions, 302 deletions
diff --git a/src/3rd_party/dbus-1.7.8/dbus/dbus-sysdeps-pthread.c b/src/3rd_party/dbus-1.7.8/dbus/dbus-sysdeps-pthread.c deleted file mode 100644 index 1300ec3516..0000000000 --- a/src/3rd_party/dbus-1.7.8/dbus/dbus-sysdeps-pthread.c +++ /dev/null @@ -1,302 +0,0 @@ -/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ -/* dbus-sysdeps-pthread.c Implements threads using pthreads (internal to libdbus) - * - * Copyright (C) 2002, 2003, 2006 Red Hat, Inc. - * - * Licensed under the Academic Free License version 2.1 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program 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 General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * - */ - -#include <config.h> -#include "dbus-internals.h" -#include "dbus-sysdeps.h" -#include "dbus-threads.h" - -#include <sys/time.h> -#include <pthread.h> -#include <string.h> - -#ifdef HAVE_ERRNO_H -#include <errno.h> -#endif - -#include <config.h> - -#ifdef HAVE_MONOTONIC_CLOCK -/* Whether we have a "monotonic" clock; i.e. a clock not affected by - * changes in system time. - * This is initialized once in check_monotonic_clock below. - * https://bugs.freedesktop.org/show_bug.cgi?id=18121 - */ -static dbus_bool_t have_monotonic_clock = 0; -#endif - -struct DBusRMutex { - pthread_mutex_t lock; /**< the lock */ -}; - -struct DBusCMutex { - pthread_mutex_t lock; /**< the lock */ -}; - -struct DBusCondVar { - pthread_cond_t cond; /**< the condition */ -}; - -#define DBUS_MUTEX(m) ((DBusMutex*) m) -#define DBUS_MUTEX_PTHREAD(m) ((DBusMutexPThread*) m) - -#define DBUS_COND_VAR(c) ((DBusCondVar*) c) -#define DBUS_COND_VAR_PTHREAD(c) ((DBusCondVarPThread*) c) - - -#ifdef DBUS_DISABLE_ASSERT -/* (tmp != 0) is a no-op usage to silence compiler */ -#define PTHREAD_CHECK(func_name, result_or_call) \ - do { int tmp = (result_or_call); if (tmp != 0) {;} } while (0) -#else -#define PTHREAD_CHECK(func_name, result_or_call) do { \ - int tmp = (result_or_call); \ - if (tmp != 0) { \ - _dbus_warn_check_failed ("pthread function %s failed with %d %s in %s\n", \ - func_name, tmp, strerror(tmp), _DBUS_FUNCTION_NAME); \ - } \ -} while (0) -#endif /* !DBUS_DISABLE_ASSERT */ - -DBusCMutex * -_dbus_platform_cmutex_new (void) -{ - DBusCMutex *pmutex; - int result; - - pmutex = dbus_new (DBusCMutex, 1); - if (pmutex == NULL) - return NULL; - - result = pthread_mutex_init (&pmutex->lock, NULL); - - if (result == ENOMEM || result == EAGAIN) - { - dbus_free (pmutex); - return NULL; - } - else - { - PTHREAD_CHECK ("pthread_mutex_init", result); - } - - return pmutex; -} - -DBusRMutex * -_dbus_platform_rmutex_new (void) -{ - DBusRMutex *pmutex; - pthread_mutexattr_t mutexattr; - int result; - - pmutex = dbus_new (DBusRMutex, 1); - if (pmutex == NULL) - return NULL; - - pthread_mutexattr_init (&mutexattr); - pthread_mutexattr_settype (&mutexattr, PTHREAD_MUTEX_RECURSIVE); - result = pthread_mutex_init (&pmutex->lock, &mutexattr); - pthread_mutexattr_destroy (&mutexattr); - - if (result == ENOMEM || result == EAGAIN) - { - dbus_free (pmutex); - return NULL; - } - else - { - PTHREAD_CHECK ("pthread_mutex_init", result); - } - - return pmutex; -} - -void -_dbus_platform_cmutex_free (DBusCMutex *mutex) -{ - PTHREAD_CHECK ("pthread_mutex_destroy", pthread_mutex_destroy (&mutex->lock)); - dbus_free (mutex); -} - -void -_dbus_platform_rmutex_free (DBusRMutex *mutex) -{ - PTHREAD_CHECK ("pthread_mutex_destroy", pthread_mutex_destroy (&mutex->lock)); - dbus_free (mutex); -} - -void -_dbus_platform_cmutex_lock (DBusCMutex *mutex) -{ - PTHREAD_CHECK ("pthread_mutex_lock", pthread_mutex_lock (&mutex->lock)); -} - -void -_dbus_platform_rmutex_lock (DBusRMutex *mutex) -{ - PTHREAD_CHECK ("pthread_mutex_lock", pthread_mutex_lock (&mutex->lock)); -} - -void -_dbus_platform_cmutex_unlock (DBusCMutex *mutex) -{ - PTHREAD_CHECK ("pthread_mutex_unlock", pthread_mutex_unlock (&mutex->lock)); -} - -void -_dbus_platform_rmutex_unlock (DBusRMutex *mutex) -{ - PTHREAD_CHECK ("pthread_mutex_unlock", pthread_mutex_unlock (&mutex->lock)); -} - -DBusCondVar * -_dbus_platform_condvar_new (void) -{ - DBusCondVar *pcond; - pthread_condattr_t attr; - int result; - - pcond = dbus_new (DBusCondVar, 1); - if (pcond == NULL) - return NULL; - - pthread_condattr_init (&attr); -#ifdef HAVE_MONOTONIC_CLOCK - if (have_monotonic_clock) - pthread_condattr_setclock (&attr, CLOCK_MONOTONIC); -#endif - - result = pthread_cond_init (&pcond->cond, &attr); - pthread_condattr_destroy (&attr); - - if (result == EAGAIN || result == ENOMEM) - { - dbus_free (pcond); - return NULL; - } - else - { - PTHREAD_CHECK ("pthread_cond_init", result); - } - - return pcond; -} - -void -_dbus_platform_condvar_free (DBusCondVar *cond) -{ - PTHREAD_CHECK ("pthread_cond_destroy", pthread_cond_destroy (&cond->cond)); - dbus_free (cond); -} - -void -_dbus_platform_condvar_wait (DBusCondVar *cond, - DBusCMutex *mutex) -{ - PTHREAD_CHECK ("pthread_cond_wait", pthread_cond_wait (&cond->cond, &mutex->lock)); -} - -dbus_bool_t -_dbus_platform_condvar_wait_timeout (DBusCondVar *cond, - DBusCMutex *mutex, - int timeout_milliseconds) -{ - struct timeval time_now; - struct timespec end_time; - int result; - -#ifdef HAVE_MONOTONIC_CLOCK - if (have_monotonic_clock) - { - struct timespec monotonic_timer; - clock_gettime (CLOCK_MONOTONIC,&monotonic_timer); - time_now.tv_sec = monotonic_timer.tv_sec; - time_now.tv_usec = monotonic_timer.tv_nsec / 1000; - } - else - /* This else falls through to gettimeofday */ -#endif - gettimeofday (&time_now, NULL); - - end_time.tv_sec = time_now.tv_sec + timeout_milliseconds / 1000; - end_time.tv_nsec = (time_now.tv_usec + (timeout_milliseconds % 1000) * 1000) * 1000; - if (end_time.tv_nsec > 1000*1000*1000) - { - end_time.tv_sec += 1; - end_time.tv_nsec -= 1000*1000*1000; - } - - result = pthread_cond_timedwait (&cond->cond, &mutex->lock, &end_time); - - if (result != ETIMEDOUT) - { - PTHREAD_CHECK ("pthread_cond_timedwait", result); - } - - /* return true if we did not time out */ - return result != ETIMEDOUT; -} - -void -_dbus_platform_condvar_wake_one (DBusCondVar *cond) -{ - PTHREAD_CHECK ("pthread_cond_signal", pthread_cond_signal (&cond->cond)); -} - -static void -check_monotonic_clock (void) -{ -#ifdef HAVE_MONOTONIC_CLOCK - struct timespec dummy; - if (clock_getres (CLOCK_MONOTONIC, &dummy) == 0) - have_monotonic_clock = TRUE; -#endif -} - -dbus_bool_t -_dbus_threads_init_platform_specific (void) -{ - /* These have static variables, and we need to handle both the case - * where dbus_threads_init() has been called and when it hasn't; - * so initialize them before any threads are allowed to enter. - */ - check_monotonic_clock (); - (void) _dbus_check_setuid (); - - return TRUE; -} - -static pthread_mutex_t init_mutex = PTHREAD_MUTEX_INITIALIZER; - -void -_dbus_threads_lock_platform_specific (void) -{ - pthread_mutex_lock (&init_mutex); -} - -void -_dbus_threads_unlock_platform_specific (void) -{ - pthread_mutex_unlock (&init_mutex); -} |