27#include "dbus-internals.h" 
   28#include "dbus-sysdeps.h" 
   29#include "dbus-threads.h" 
   42#ifdef HAVE_MONOTONIC_CLOCK 
   63#define DBUS_MUTEX(m)         ((DBusMutex*) m) 
   64#define DBUS_MUTEX_PTHREAD(m) ((DBusMutexPThread*) m) 
   66#define DBUS_COND_VAR(c)         ((DBusCondVar*) c) 
   67#define DBUS_COND_VAR_PTHREAD(c) ((DBusCondVarPThread*) c) 
   70#ifdef DBUS_DISABLE_ASSERT 
   72#define PTHREAD_CHECK(func_name, result_or_call)    \ 
   73    do { int tmp = (result_or_call); if (tmp != 0) {;} } while (0) 
   75#define PTHREAD_CHECK(func_name, result_or_call) do {                                  \ 
   76    int tmp = (result_or_call);                                                        \ 
   78      _dbus_warn_check_failed ("pthread function %s failed with %d %s in %s",          \ 
   79                               func_name, tmp, strerror(tmp), _DBUS_FUNCTION_NAME);    \ 
   85_dbus_platform_cmutex_new (
void)
 
   94  result = pthread_mutex_init (&pmutex->
lock, 
NULL);
 
   96  if (result == ENOMEM || result == EAGAIN)
 
  103      PTHREAD_CHECK (
"pthread_mutex_init", result);
 
  110_dbus_platform_rmutex_new (
void)
 
  113  pthread_mutexattr_t mutexattr;
 
  120  pthread_mutexattr_init (&mutexattr);
 
  121  pthread_mutexattr_settype (&mutexattr, PTHREAD_MUTEX_RECURSIVE);
 
  122  result = pthread_mutex_init (&pmutex->
lock, &mutexattr);
 
  123  pthread_mutexattr_destroy (&mutexattr);
 
  125  if (result == ENOMEM || result == EAGAIN)
 
  132      PTHREAD_CHECK (
"pthread_mutex_init", result);
 
  141  PTHREAD_CHECK (
"pthread_mutex_destroy", pthread_mutex_destroy (&mutex->
lock));
 
  148  PTHREAD_CHECK (
"pthread_mutex_destroy", pthread_mutex_destroy (&mutex->
lock));
 
  155  PTHREAD_CHECK (
"pthread_mutex_lock", pthread_mutex_lock (&mutex->
lock));
 
  161  PTHREAD_CHECK (
"pthread_mutex_lock", pthread_mutex_lock (&mutex->
lock));
 
  165_dbus_platform_cmutex_unlock (
DBusCMutex *mutex)
 
  167  PTHREAD_CHECK (
"pthread_mutex_unlock", pthread_mutex_unlock (&mutex->
lock));
 
  171_dbus_platform_rmutex_unlock (
DBusRMutex *mutex)
 
  173  PTHREAD_CHECK (
"pthread_mutex_unlock", pthread_mutex_unlock (&mutex->
lock));
 
  177_dbus_platform_condvar_new (
void)
 
  180  pthread_condattr_t attr;
 
  187  pthread_condattr_init (&attr);
 
  188#ifdef HAVE_MONOTONIC_CLOCK 
  189  if (have_monotonic_clock)
 
  190    pthread_condattr_setclock (&attr, CLOCK_MONOTONIC);
 
  193  result = pthread_cond_init (&pcond->
cond, &attr);
 
  194  pthread_condattr_destroy (&attr);
 
  196  if (result == EAGAIN || result == ENOMEM)
 
  203      PTHREAD_CHECK (
"pthread_cond_init", result);
 
  212  PTHREAD_CHECK (
"pthread_cond_destroy", pthread_cond_destroy (&cond->
cond));
 
  220  PTHREAD_CHECK (
"pthread_cond_wait", pthread_cond_wait (&cond->
cond, &mutex->
lock));
 
  224_dbus_platform_condvar_wait_timeout (
DBusCondVar               *cond,
 
  226                                     int                        timeout_milliseconds)
 
  228  struct timeval time_now;
 
  229  struct timespec end_time;
 
  232#ifdef HAVE_MONOTONIC_CLOCK 
  233  if (have_monotonic_clock)
 
  235      struct timespec monotonic_timer;
 
  236      clock_gettime (CLOCK_MONOTONIC,&monotonic_timer);
 
  237      time_now.tv_sec = monotonic_timer.tv_sec;
 
  238      time_now.tv_usec = monotonic_timer.tv_nsec / 1000;
 
  243  gettimeofday (&time_now, 
NULL);
 
  245  end_time.tv_sec = time_now.tv_sec + timeout_milliseconds / 1000;
 
  246  end_time.tv_nsec = (time_now.tv_usec + (timeout_milliseconds % 1000) * 1000) * 1000;
 
  247  if (end_time.tv_nsec > 1000*1000*1000)
 
  249      end_time.tv_sec += 1;
 
  250      end_time.tv_nsec -= 1000*1000*1000;
 
  253  result = pthread_cond_timedwait (&cond->
cond, &mutex->
lock, &end_time);
 
  255  if (result != ETIMEDOUT)
 
  257      PTHREAD_CHECK (
"pthread_cond_timedwait", result);
 
  261  return result != ETIMEDOUT;
 
  267  PTHREAD_CHECK (
"pthread_cond_signal", pthread_cond_signal (&cond->
cond));
 
  271check_monotonic_clock (
void)
 
  273#ifdef HAVE_MONOTONIC_CLOCK 
  274  struct timespec dummy;
 
  275  if (clock_getres (CLOCK_MONOTONIC, &dummy) == 0)
 
  276    have_monotonic_clock = 
TRUE;
 
  287  check_monotonic_clock ();
 
 
  293static pthread_mutex_t init_mutex = PTHREAD_MUTEX_INITIALIZER;
 
  298  pthread_mutex_lock (&init_mutex);
 
 
  304  pthread_mutex_unlock (&init_mutex);
 
 
  307#ifdef DBUS_ENABLE_VERBOSE_MODE 
  312_dbus_print_thread (
void)
 
  316  fprintf (stderr, 
"%lu: 0x%lx: ", 
_dbus_pid_for_log (), (
unsigned long) pthread_self ());
 
#define NULL
A null pointer, defined appropriately for C or C++.
#define TRUE
Expands to "1".
void dbus_free(void *memory)
Frees a block of memory previously allocated by dbus_malloc() or dbus_malloc0().
#define dbus_new(type, count)
Safe macro for using dbus_malloc().
unsigned long _dbus_pid_for_log(void)
The only reason this is separate from _dbus_getpid() is to allow it on Windows for logging but not fo...
void _dbus_threads_lock_platform_specific(void)
Lock a static mutex used to protect _dbus_threads_init_platform_specific().
dbus_bool_t _dbus_check_setuid(void)
NOTE: If you modify this function, please also consider making the corresponding change in GLib.
void _dbus_threads_unlock_platform_specific(void)
Undo _dbus_threads_lock_platform_specific().
dbus_bool_t _dbus_threads_init_platform_specific(void)
Initialize threads as in dbus_threads_init_default(), appropriately for the platform.
dbus_uint32_t dbus_bool_t
A boolean, valid values are TRUE and FALSE.
pthread_mutex_t lock
the lock
pthread_cond_t cond
the condition
pthread_mutex_t lock
the lock