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Code Issues Releases Activity

ffmpeg: windows: respond to logoff and ctrl+break messages as well

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
rogerdpack 2015-06-30 16:31:19 -06:00 committed by Michael Niedermayer
parent bd0f14123f
commit 4ebb43f19c
2 changed files with 43 additions and 0 deletions
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2
configure vendored
View File

@ -1787,6 +1787,7 @@ SYSTEM_FUNCS="
pthread_cancel
sched_getaffinity
SetConsoleTextAttribute
SetConsoleCtrlHandler
setmode
setrlimit
Sleep
@ -4990,6 +4991,7 @@ check_func_headers windows.h GetSystemTimeAsFileTime
check_func_headers windows.h MapViewOfFile
check_func_headers windows.h PeekNamedPipe
check_func_headers windows.h SetConsoleTextAttribute
check_func_headers windows.h SetConsoleCtrlHandler
check_func_headers windows.h Sleep
check_func_headers windows.h VirtualAlloc
check_struct windows.h "CONDITION_VARIABLE" Ptr

41
ffmpeg.c
View File

@ -79,6 +79,10 @@
#include <windows.h>
#include <psapi.h>
#endif
#if HAVE_SETCONSOLECTRLHANDLER
#include <windows.h>
#endif
#if HAVE_SYS_SELECT_H
#include <sys/select.h>
@ -313,6 +317,7 @@ void term_exit(void)
static volatile int received_sigterm = 0;
static volatile int received_nb_signals = 0;
static volatile int transcode_init_done = 0;
static volatile int ffmpeg_exited = 0;
static int main_return_code = 0;
static void
@ -329,6 +334,38 @@ sigterm_handler(int sig)
}
}
#if HAVE_SETCONSOLECTRLHANDLER
static BOOL WINAPI CtrlHandler(DWORD fdwCtrlType)
{
av_log(NULL, AV_LOG_DEBUG, "\nReceived windows signal %ld\n", fdwCtrlType);
switch (fdwCtrlType)
{
case CTRL_C_EVENT:
case CTRL_BREAK_EVENT:
sigterm_handler(SIGINT);
return TRUE;
case CTRL_CLOSE_EVENT:
case CTRL_LOGOFF_EVENT:
case CTRL_SHUTDOWN_EVENT:
sigterm_handler(SIGTERM);
/* Basically, with these 3 events, when we return from this method the
process is hard terminated, so stall as long as we need to
to try and let the main thread(s) clean up and gracefully terminate
(we have at most 5 seconds, but should be done far before that). */
while (!ffmpeg_exited) {
Sleep(0);
}
return TRUE;
default:
av_log(NULL, AV_LOG_ERROR, "Received unknown windows signal %ld\n", fdwCtrlType);
return FALSE;
}
}
#endif
void term_init(void)
{
#if HAVE_TERMIOS_H
@ -362,6 +399,9 @@ void term_init(void)
#ifdef SIGXCPU
signal(SIGXCPU, sigterm_handler);
#endif
#if HAVE_SETCONSOLECTRLHANDLER
SetConsoleCtrlHandler((PHANDLER_ROUTINE) CtrlHandler, TRUE);
#endif
}
/* read a key without blocking */
@ -537,6 +577,7 @@ static void ffmpeg_cleanup(int ret)
av_log(NULL, AV_LOG_INFO, "Conversion failed!\n");
}
term_exit();
ffmpeg_exited = 1;
}
void remove_avoptions(AVDictionary **a, AVDictionary *b)