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livetrax/libs/glibmm2/glibmm/thread.cc

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// Generated by gtkmmproc -- DO NOT MODIFY!
#include <glibmm/thread.h>
#include <glibmm/private/thread_p.h>
// -*- c++ -*-
/* $Id$ */
/* Copyright (C) 2002 The gtkmm Development Team
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <glibmm/exceptionhandler.h>
#include <glib/gmessages.h>
namespace
{
extern "C"
{
static void* call_thread_entry_slot(void* data)
{
sigc::slot_base *const slot = reinterpret_cast<sigc::slot_base*>(data);
try
{
// Recreate the specific slot, and drop the reference obtained by create().
(*static_cast<sigc::slot<void>*>(slot))();
}
catch(Glib::Thread::Exit&)
{
// Just exit from the thread. The Thread::Exit exception
// is our sane C++ replacement of g_thread_exit().
}
catch(...)
{
Glib::exception_handlers_invoke();
}
delete slot;
return 0;
}
} //extern "C"
} // anonymous namespace
namespace Glib
{
// internal
void thread_init_impl()
{
// Make sure the exception map is initialized before creating any thread.
Glib::Error::register_init();
}
/**** Glib::Thread *********************************************************/
// static
Thread* Thread::create(const sigc::slot<void>& slot, bool joinable)
{
// Make a copy of slot on the heap
sigc::slot_base *const slot_copy = new sigc::slot<void>(slot);
GError* error = 0;
GThread *const thread = g_thread_create(
&call_thread_entry_slot, slot_copy, joinable, &error);
if(error)
{
delete slot_copy;
Glib::Error::throw_exception(error);
}
return reinterpret_cast<Thread*>(thread);
}
// static
Thread* Thread::create(const sigc::slot<void>& slot, unsigned long stack_size,
bool joinable, bool bound, ThreadPriority priority)
{
// Make a copy of slot on the heap
sigc::slot_base *const slot_copy = new sigc::slot<void>(slot);
GError* error = 0;
GThread *const thread = g_thread_create_full(
&call_thread_entry_slot, slot_copy, stack_size, joinable,
bound, (GThreadPriority) priority, &error);
if(error)
{
delete slot_copy;
Glib::Error::throw_exception(error);
}
return reinterpret_cast<Thread*>(thread);
}
// static
Thread* Thread::self()
{
return reinterpret_cast<Thread*>(g_thread_self());
}
bool Thread::joinable() const
{
return gobject_.joinable;
}
void Thread::join()
{
g_thread_join(&gobject_);
}
void Thread::set_priority(ThreadPriority priority)
{
g_thread_set_priority(&gobject_, (GThreadPriority) priority);
}
ThreadPriority Thread::get_priority() const
{
return (ThreadPriority) gobject_.priority;
}
// static
void Thread::yield()
{
g_thread_yield();
}
Thread* wrap(GThread* gobject)
{
return reinterpret_cast<Thread*>(gobject);
}
/**** Glib::StaticMutex ****************************************************/
void StaticMutex::lock()
{
g_static_mutex_lock(&gobject_);
}
bool StaticMutex::trylock()
{
return g_static_mutex_trylock(&gobject_);
}
void StaticMutex::unlock()
{
g_static_mutex_unlock(&gobject_);
}
StaticMutex::operator Mutex&()
{
// If GStaticMutex is implemented as struct (e.g. on Linux), its first struct
// member (runtime_mutex) is a GMutex pointer. If the gthread implementation
// is native (i.e. the vtable pointer passed to g_thread_init() was 0), then
// the runtime_mutex pointer is unused, and the rest of the GStaticMutex
// struct resembles the mutex data.
//
// On Win32, GStaticMutex is just a typedef to struct _GMutex*. Either way,
// the first sizeof(GMutex*) bytes of GStaticMutex always resemble a GMutex
// pointer. The gthread implementation relies on that, and we'll also do so.
GMutex*& runtime_mutex = reinterpret_cast<GMutex*&>(gobject_);
// Fortunately, it cannot hurt if we set this to the GMutex pointer returned
// by g_static_mutex_get_mutex(). Either we just overwrite it with the same
// value, or it was unused anyway. Doing that allows casting the pointer
// location to a Glib::Mutex reference (its only data member is a GMutex*).
runtime_mutex = g_static_mutex_get_mutex(&gobject_);
return reinterpret_cast<Mutex&>(runtime_mutex);
}
/**** Glib::Mutex **********************************************************/
Mutex::Mutex()
:
gobject_ (g_mutex_new())
{}
Mutex::~Mutex()
{
g_mutex_free(gobject_);
}
void Mutex::lock()
{
g_mutex_lock(gobject_);
}
bool Mutex::trylock()
{
return g_mutex_trylock(gobject_);
}
void Mutex::unlock()
{
g_mutex_unlock(gobject_);
}
/**** Glib::StaticRecMutex *************************************************/
void StaticRecMutex::lock()
{
g_static_rec_mutex_lock(&gobject_);
}
bool StaticRecMutex::trylock()
{
return g_static_rec_mutex_trylock(&gobject_);
}
void StaticRecMutex::unlock()
{
g_static_rec_mutex_unlock(&gobject_);
}
void StaticRecMutex::lock_full(unsigned int depth)
{
g_static_rec_mutex_lock_full(&gobject_, depth);
}
unsigned int StaticRecMutex::unlock_full()
{
return g_static_rec_mutex_unlock_full(&gobject_);
}
StaticRecMutex::operator RecMutex&()
{
return static_cast<RecMutex&>(*this);
}
/**** Glib::RecMutex *******************************************************/
RecMutex::RecMutex()
{
g_static_rec_mutex_init(&gobject_);
// GLib doesn't have GRecMutex, only GStaticRecMutex. Force initialization
// of the mutex now, to mimic the behaviour of a (hypothetical) GRecMutex.
g_static_mutex_get_mutex(&gobject_.mutex);
}
RecMutex::~RecMutex()
{
g_static_rec_mutex_free(&gobject_);
}
/**** Glib::StaticRWLock ***************************************************/
void StaticRWLock::reader_lock()
{
g_static_rw_lock_reader_lock(&gobject_);
}
bool StaticRWLock::reader_trylock()
{
return g_static_rw_lock_reader_trylock(&gobject_);
}
void StaticRWLock::reader_unlock()
{
g_static_rw_lock_reader_unlock(&gobject_);
}
void StaticRWLock::writer_lock()
{
g_static_rw_lock_writer_lock(&gobject_);
}
bool StaticRWLock::writer_trylock()
{
return g_static_rw_lock_writer_trylock(&gobject_);
}
void StaticRWLock::writer_unlock()
{
g_static_rw_lock_writer_unlock(&gobject_);
}
StaticRWLock::operator RWLock&()
{
return static_cast<RWLock&>(*this);
}
/**** Glib::RWLock *********************************************************/
RWLock::RWLock()
{
g_static_rw_lock_init(&gobject_);
// GLib doesn't have GRWLock, only GStaticRWLock. Force initialization
// of the mutex and the condition variables now, to mimic the behaviour
// of a (hypothetical) GRWLock.
if(g_static_mutex_get_mutex(&gobject_.mutex))
{
gobject_.read_cond = g_cond_new();
gobject_.write_cond = g_cond_new();
}
}
RWLock::~RWLock()
{
g_static_rw_lock_free(&gobject_);
}
/**** Glib::Cond ***********************************************************/
Cond::Cond()
:
gobject_ (g_cond_new())
{}
Cond::~Cond()
{
g_cond_free(gobject_);
}
void Cond::signal()
{
g_cond_signal(gobject_);
}
void Cond::broadcast()
{
g_cond_broadcast(gobject_);
}
void Cond::wait(Mutex& mutex)
{
g_cond_wait(gobject_, mutex.gobj());
}
bool Cond::timed_wait(Mutex& mutex, const Glib::TimeVal& abs_time)
{
return g_cond_timed_wait(gobject_, mutex.gobj(), const_cast<Glib::TimeVal*>(&abs_time));
}
} // namespace Glib
namespace
{
} // anonymous namespace
Glib::ThreadError::ThreadError(Glib::ThreadError::Code error_code, const Glib::ustring& error_message)
:
Glib::Error (G_THREAD_ERROR, error_code, error_message)
{}
Glib::ThreadError::ThreadError(GError* gobject)
:
Glib::Error (gobject)
{}
Glib::ThreadError::Code Glib::ThreadError::code() const
{
return static_cast<Code>(Glib::Error::code());
}
void Glib::ThreadError::throw_func(GError* gobject)
{
throw Glib::ThreadError(gobject);
}