source/core/unix/mutex.cpp

   1 #include <cerrno>
   2 #include <pthread.h>
   3 #include "mutex.h"
   4 #include "mutex_private.h"
   5 #include "systemerror.h"
   6
   7 namespace Msp {
   8
   9 Mutex::Mutex():
  10         priv(new Private)
  11 {
  12         pthread_mutex_init(&priv->mutex, nullptr);
  13 }
  14
  15 Mutex::~Mutex()
  16 {
  17         pthread_mutex_destroy(&priv->mutex);
  18         delete priv;
  19 }
  20
  21 void Mutex::lock()
  22 {
  23         if(int err = pthread_mutex_lock(&priv->mutex))
  24                 throw system_error("pthread_mutex_lock", err);
  25 }
  26
  27 bool Mutex::trylock()
  28 {
  29         int err = pthread_mutex_trylock(&priv->mutex);
  30         if(err && err!=EBUSY)
  31                 throw system_error("pthread_mutex_trylock", err);
  32         return !err;
  33 }
  34
  35 void Mutex::unlock()
  36 {
  37         if(int err = pthread_mutex_unlock(&priv->mutex))
  38                 throw system_error("pthread_mutex_unlock", err);
  39 }
  40
  41 } // namespace Msp