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livetrax/libs/pbd/pbd.cc
Tim Mayberry 119e56e7eb Add PBD::QPC::initialize to initialize timer and call it from PBD::init
Check timer for invalid frequency
Precalculate timer tick rate to save a few instructions
Don't use static variables inside functions to avoid checking for initialization
Use static functions inside anonymous namespace for internal linkage
2015-09-16 23:59:38 +10:00

149 lines
2.9 KiB
C++

/*
Copyright (C) 2011 Paul Davis
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <iostream>
#include <cstdlib>
#include <string>
#ifdef PLATFORM_WINDOWS
#include <fcntl.h>
#endif
#include <giomm.h>
#include <glibmm/thread.h>
#include "pbd/pbd.h"
#include "pbd/debug.h"
#include "pbd/error.h"
#include "pbd/id.h"
#include "pbd/enumwriter.h"
#include "pbd/fpu.h"
#ifdef PLATFORM_WINDOWS
#include <winsock2.h>
#include "pbd/windows_timer_utils.h"
#include "pbd/windows_mmcss.h"
#endif
#include "i18n.h"
extern void setup_libpbd_enums ();
namespace {
static bool libpbd_initialized = false;
static
void
set_debug_options_from_env ()
{
bool set;
std::string options;
options = Glib::getenv ("PBD_DEBUG", set);
if (set) {
std::cerr << X_("PBD_DEBUG=") << options << std::endl;
PBD::parse_debug_options (options.c_str());
}
}
#ifdef PLATFORM_WINDOWS
static
void
test_timers_from_env ()
{
bool set;
std::string options;
options = Glib::getenv ("PBD_TEST_TIMERS", set);
if (set) {
if (!PBD::QPC::check_timer_valid ()) {
PBD::error << X_("Windows QPC Timer source not usable") << endmsg;
} else {
PBD::info << X_("Windows QPC Timer source usable") << endmsg;
}
}
}
#endif
} // namespace
bool
PBD::init ()
{
if (libpbd_initialized) {
return true;
}
#ifdef PLATFORM_WINDOWS
// Essential!! Make sure that any files used by Ardour
// will be created or opened in BINARY mode!
_fmode = O_BINARY;
WSADATA wsaData;
/* Initialize windows socket DLL for PBD::CrossThreadChannel
*/
if (WSAStartup(MAKEWORD(1,1),&wsaData) != 0) {
fatal << X_("Windows socket initialization failed with error: ") << WSAGetLastError() << endmsg;
abort();
/*NOTREACHED*/
return false;
}
QPC::initialize();
test_timers_from_env ();
if (!PBD::MMCSS::initialize()) {
PBD::info << X_("Unable to initialize MMCSS") << endmsg;
} else {
PBD::info << X_("MMCSS Initialized") << endmsg;
}
#endif
if (!Glib::thread_supported()) {
Glib::thread_init();
}
Gio::init ();
PBD::ID::init ();
setup_libpbd_enums ();
set_debug_options_from_env ();
libpbd_initialized = true;
return true;
}
void
PBD::cleanup ()
{
#ifdef PLATFORM_WINDOWS
PBD::MMCSS::deinitialize ();
WSACleanup();
#endif
EnumWriter::destroy ();
FPU::destroy ();
}