mirror of
https://code.videolan.org/videolan/vlc
synced 2024-10-03 01:31:53 +02:00
330 lines
12 KiB
Objective-C
330 lines
12 KiB
Objective-C
/*****************************************************************************
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* darwinvlc.m: OS X specific main executable for VLC media player
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*****************************************************************************
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* Copyright (C) 2013-2015 VLC authors and VideoLAN
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* $Id$
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*
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* Authors: Felix Paul Kühne <fkuehne at videolan dot org>
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* David Fuhrmann <dfuhrmann at videolan dot org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <vlc/vlc.h>
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#include <stdlib.h>
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#include <locale.h>
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#include <signal.h>
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#include <string.h>
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#import <CoreFoundation/CoreFoundation.h>
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#import <Cocoa/Cocoa.h>
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#ifdef HAVE_BREAKPAD
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#import <Breakpad/Breakpad.h>
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#endif
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/**
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* Handler called when VLC asks to terminate the program.
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*/
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static void vlc_terminate(void *data)
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{
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(void)data;
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dispatch_async(dispatch_get_main_queue(), ^{
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/*
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* Stop the main loop. When using the CoreFoundation mainloop, simply
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* CFRunLoopStop can be used.
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*
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* But this does not work when having an interface.
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* In this case, [NSApp stop:nil] needs to be used, but the used flag is only
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* evaluated at the end of main loop event processing. This is always true
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* in the case of code inside a action method. But here, this is
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* not true and thus we need to send an dummy event to make sure the stop
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* flag is actually processed by the main loop.
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*/
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if (NSApp == nil) {
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CFRunLoopStop(CFRunLoopGetCurrent());
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} else {
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[NSApp stop:nil];
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NSEvent* event = [NSEvent otherEventWithType:NSApplicationDefined
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location:NSMakePoint(0,0)
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modifierFlags:0
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timestamp:0.0
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windowNumber:0
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context:nil
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subtype:0
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data1:0
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data2:0];
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[NSApp postEvent:event atStart:YES];
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}
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});
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}
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#ifdef HAVE_BREAKPAD
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BreakpadRef initBreakpad()
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{
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BreakpadRef bp = nil;
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/* Create caches directory in case it does not exist */
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NSFileManager *fileManager = [NSFileManager defaultManager];
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NSString *cachePath = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) firstObject];
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NSString *bundleName = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleIdentifier"];
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NSString *cacheAppPath = [cachePath stringByAppendingPathComponent:bundleName];
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if (![fileManager fileExistsAtPath:cacheAppPath]) {
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[fileManager createDirectoryAtPath:cacheAppPath withIntermediateDirectories:NO attributes:nil error:nil];
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}
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/* Get Info.plist config */
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NSMutableDictionary *breakpad_config = [[[NSBundle mainBundle] infoDictionary] mutableCopy];
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/* Use in-process reporting */
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[breakpad_config setObject:[NSNumber numberWithBool:YES]
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forKey:@BREAKPAD_IN_PROCESS];
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/* Set dump location */
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[breakpad_config setObject:cacheAppPath
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forKey:@BREAKPAD_DUMP_DIRECTORY];
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bp = BreakpadCreate(breakpad_config);
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return bp;
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}
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#endif
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/*****************************************************************************
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* main: parse command line, start interface and spawn threads.
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*****************************************************************************/
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int main(int i_argc, const char *ppsz_argv[])
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{
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/* The so-called POSIX-compliant MacOS X reportedly processes SIGPIPE even
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* if it is blocked in all thread.
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* Note: this is NOT an excuse for not protecting against SIGPIPE. If
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* LibVLC runs outside of VLC, we cannot rely on this code snippet. */
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signal(SIGPIPE, SIG_IGN);
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/* Restore SIGCHLD in case our parent process ignores it. */
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signal(SIGCHLD, SIG_DFL);
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#ifndef NDEBUG
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/* Activate malloc checking routines to detect heap corruptions. */
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setenv("MALLOC_CHECK_", "2", 1);
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#endif
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#ifdef TOP_BUILDDIR
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setenv("VLC_PLUGIN_PATH", TOP_BUILDDIR"/modules", 1);
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setenv("VLC_DATA_PATH", TOP_SRCDIR"/share", 1);
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#endif
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#ifndef ALLOW_RUN_AS_ROOT
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if (geteuid() == 0)
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{
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fprintf(stderr, "VLC is not supposed to be run as root. Sorry.\n"
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"If you need to use real-time priorities and/or privileged TCP ports\n"
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"you can use %s-wrapper (make sure it is Set-UID root and\n"
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"cannot be run by non-trusted users first).\n", ppsz_argv[0]);
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return 1;
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}
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#endif
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setlocale(LC_ALL, "");
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if (isatty(STDERR_FILENO))
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/* This message clutters error logs. It is printed only on a TTY.
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* Fortunately, LibVLC prints version info with -vv anyway. */
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fprintf(stderr, "VLC media player %s (revision %s)\n",
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libvlc_get_version(), libvlc_get_changeset());
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sigset_t set;
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sigemptyset(&set);
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/*
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* The darwin version of VLC used GCD to dequeue interesting signals.
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* For this to work, those signals must be blocked.
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*
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* There are two advantages over traditional signal handlers:
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* - handling is done on a separate thread: no need to worry about async-safety,
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* - EINTR is not generated: other threads need not handle that error.
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* That being said, some LibVLC programs do not use sigwait(). Therefore
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* EINTR must still be handled cleanly, notably from poll() calls.
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*
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* Signals that request a clean shutdown.
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* We have to handle SIGTERM cleanly because of daemon mode. */
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sigaddset(&set, SIGINT);
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sigaddset(&set, SIGTERM);
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/* SIGPIPE can happen and would crash the process. On modern systems,
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* the MSG_NOSIGNAL flag protects socket write operations against SIGPIPE.
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* But we still need to block SIGPIPE when:
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* - writing to pipes,
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* - using write() instead of send() for code not specific to sockets.
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* LibVLC code assumes that SIGPIPE is blocked. Other LibVLC applications
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* shall block it (or handle it somehow) too.
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*/
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sigaddset(&set, SIGPIPE);
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/* SIGCHLD must be dequeued to clean up zombie child processes.
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* Furthermore the handler must not be set to SIG_IGN (see above).
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* We cannot pragmatically handle EINTR, short reads and short writes
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* in every code paths (including underlying libraries). So we just
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* block SIGCHLD in all threads, and dequeue it below. */
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sigaddset(&set, SIGCHLD);
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/* Block all these signals */
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pthread_sigmask(SIG_SETMASK, &set, NULL);
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/* Handle signals with GCD */
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dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
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dispatch_source_t sigIntSource = dispatch_source_create(DISPATCH_SOURCE_TYPE_SIGNAL, SIGINT, 0, queue);
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dispatch_source_t sigTermSource = dispatch_source_create(DISPATCH_SOURCE_TYPE_SIGNAL, SIGTERM, 0, queue);
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dispatch_source_t sigChldSource = dispatch_source_create(DISPATCH_SOURCE_TYPE_SIGNAL, SIGCHLD, 0, queue);
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if (!sigIntSource || !sigTermSource || !sigChldSource)
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abort();
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dispatch_source_set_event_handler(sigIntSource, ^{
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vlc_terminate(nil);
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});
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dispatch_source_set_event_handler(sigTermSource, ^{
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vlc_terminate(nil);
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});
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dispatch_source_set_event_handler(sigChldSource, ^{
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int status;
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while(waitpid(-1, &status, WNOHANG) > 0)
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;
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});
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dispatch_resume(sigIntSource);
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dispatch_resume(sigTermSource);
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dispatch_resume(sigChldSource);
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/* Handle parameters */
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const char *argv[i_argc + 2];
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int argc = 0;
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argv[argc++] = "--no-ignore-config";
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argv[argc++] = "--media-library";
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/* overwrite system language on Mac */
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char *lang = NULL;
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for (int i = 0; i < i_argc; i++) {
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if (!strncmp(ppsz_argv[i], "--language", 10)) {
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lang = strstr(ppsz_argv[i], "=");
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ppsz_argv++, i_argc--;
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continue;
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}
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}
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if (lang && strncmp( lang, "auto", 4 )) {
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char tmp[11];
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snprintf(tmp, 11, "LANG%s", lang);
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putenv(tmp);
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}
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if (!lang) {
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CFStringRef language;
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language = (CFStringRef)CFPreferencesCopyAppValue(CFSTR("language"),
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kCFPreferencesCurrentApplication);
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if (language) {
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CFIndex length = CFStringGetLength(language) + 1;
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if (length > 0) {
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CFIndex maxSize = CFStringGetMaximumSizeForEncoding(length, kCFStringEncodingUTF8);
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lang = (char *)malloc(maxSize);
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if(lang) {
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CFStringGetCString(language, lang, maxSize - 1, kCFStringEncodingUTF8);
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if (strncmp( lang, "auto", 4 )) {
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char tmp[11];
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snprintf(tmp, 11, "LANG=%s", lang);
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putenv(tmp);
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}
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}
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free(lang);
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}
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CFRelease(language);
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}
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}
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ppsz_argv++; i_argc--; /* skip executable path */
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/* When VLC.app is run by double clicking in Mac OS X < 10.9, the 2nd arg
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* is the PSN - process serial number (a unique PID-ish thingie)
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* still ok for real Darwin & when run from command line
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* for example -psn_0_9306113 */
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if (i_argc >= 1 && !strncmp(*ppsz_argv, "-psn" , 4))
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ppsz_argv++, i_argc--;
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memcpy (argv + argc, ppsz_argv, i_argc * sizeof(*argv));
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argc += i_argc;
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argv[argc] = NULL;
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/* Initialize libvlc */
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libvlc_instance_t *vlc = libvlc_new(argc, argv);
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if (vlc == NULL)
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return 1;
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int ret = 1;
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libvlc_set_exit_handler(vlc, vlc_terminate, NULL);
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libvlc_set_app_id(vlc, "org.VideoLAN.VLC", PACKAGE_VERSION, PACKAGE_NAME);
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libvlc_set_user_agent(vlc, "VLC media player", "VLC/"PACKAGE_VERSION);
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libvlc_add_intf(vlc, "hotkeys,none");
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if (libvlc_add_intf(vlc, NULL)) {
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fprintf(stderr, "VLC cannot start any interface. Exiting.\n");
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goto out;
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}
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libvlc_playlist_play(vlc);
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/*
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* Run the main loop. If the mac interface is not initialized, only the CoreFoundation
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* runloop is used. Otherwise, [NSApp run] needs to be called, which setups more stuff
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* before actually starting the loop.
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*/
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#ifdef HAVE_BREAKPAD
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BreakpadRef breakpad;
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breakpad = initBreakpad();
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#endif
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@autoreleasepool {
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if(NSApp == nil) {
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CFRunLoopRun();
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} else {
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[NSApp run];
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}
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}
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ret = 0;
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/* Cleanup */
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out:
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dispatch_release(sigIntSource);
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dispatch_release(sigTermSource);
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dispatch_release(sigChldSource);
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libvlc_release(vlc);
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#ifdef HAVE_BREAKPAD
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BreakpadRelease(breakpad);
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#endif
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return ret;
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}
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