mpd/src/thread/Thread.cxx
2020-01-18 19:23:49 +01:00

98 lines
1.9 KiB
C++

/*
* Copyright 2003-2020 The Music Player Daemon Project
* http://www.musicpd.org
*
* 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 "Thread.hxx"
#include "system/Error.hxx"
#ifdef ANDROID
#include "java/Global.hxx"
#endif
void
Thread::Start()
{
assert(!IsDefined());
#ifdef _WIN32
handle = ::CreateThread(nullptr, 0, ThreadProc, this, 0, &id);
if (handle == nullptr)
throw MakeLastError("Failed to create thread");
#else
int e = pthread_create(&handle, nullptr, ThreadProc, this);
if (e != 0)
throw MakeErrno(e, "Failed to create thread");
#endif
}
void
Thread::Join() noexcept
{
assert(IsDefined());
assert(!IsInside());
#ifdef _WIN32
::WaitForSingleObject(handle, INFINITE);
::CloseHandle(handle);
handle = nullptr;
#else
pthread_join(handle, nullptr);
handle = pthread_t();
#endif
}
inline void
Thread::Run() noexcept
{
f();
#ifdef ANDROID
Java::DetachCurrentThread();
#endif
}
#ifdef _WIN32
DWORD WINAPI
Thread::ThreadProc(LPVOID ctx) noexcept
{
Thread &thread = *(Thread *)ctx;
thread.Run();
return 0;
}
#else
void *
Thread::ThreadProc(void *ctx) noexcept
{
Thread &thread = *(Thread *)ctx;
#ifndef NDEBUG
thread.inside_handle = pthread_self();
#endif
thread.Run();
return nullptr;
}
#endif