[Mplayer-cvslog] CVS: main/linux timer.c,NONE,1.1 Makefile,1.1,1.2 timer.h,1.4,1.5

[Nick Kurshev]

Update of /cvsroot/mplayer/main/linux
In directory mplayer:/var/tmp.root/cvs-serv10919

Modified Files:
	Makefile timer.h 
Added Files:
	timer.c 
Log Message:
POSIX compatible timer's callback

--- NEW FILE ---
/* POSIX compatible timer callback */
#include <sys/time.h>
#include <signal.h>
#include <stddef.h>

#include "timer.h"

static timer_callback *user_func = NULL;
static struct itimerval otimer;
static void (*old_alrm)(int) = SIG_DFL;

static void my_alarm_handler( int signo )
{
  if(user_func) (*user_func)();
}

unsigned set_timer_callback(unsigned ms,timer_callback func)
{
   unsigned ret;
   struct itimerval itimer;
   user_func = func;
   getitimer(ITIMER_REAL,&otimer);
   old_alrm = signal(SIGALRM,my_alarm_handler);
   signal(SIGALRM,my_alarm_handler);
   itimer.it_interval.tv_sec = 0;
   itimer.it_interval.tv_usec = ms*1000;
   itimer.it_value.tv_sec = 0;
   itimer.it_value.tv_usec = ms*1000;
   setitimer(ITIMER_REAL,&itimer,NULL);
   getitimer(ITIMER_REAL,&itimer);
   ret = itimer.it_interval.tv_sec*1000 + itimer.it_interval.tv_usec/1000;
   if(!ret) restore_timer();
   return ret;
}

void restore_timer(void)
{
  signal(SIGALRM,old_alrm);
  setitimer(ITIMER_REAL,&otimer,NULL);
}

Index: Makefile
===================================================================
RCS file: /cvsroot/mplayer/main/linux/Makefile,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -r1.1 -r1.2
--- Makefile	24 Oct 2001 07:34:40 -0000	1.1
+++ Makefile	25 Feb 2002 14:24:11 -0000	1.2
@@ -3,7 +3,7 @@
 
 LIBNAME = libosdep.a
 
-SRCS=getch2.c timer-lx.c shmem.c
+SRCS=getch2.c timer-lx.c timer.c shmem.c
 OBJS=$(SRCS:.c=.o)
 
 ifeq ($(TARGET_ARCH_X86),yes)

Index: timer.h
===================================================================
RCS file: /cvsroot/mplayer/main/linux/timer.h,v
retrieving revision 1.4
retrieving revision 1.5
diff -u -r1.4 -r1.5
--- timer.h	27 Jan 2002 17:59:12 -0000	1.4
+++ timer.h	25 Feb 2002 14:24:11 -0000	1.5
@@ -1,3 +1,5 @@
+#ifndef __TIMER_H
+#define __TIMER_H
 
 void InitTimer();
 unsigned int GetTimer();
@@ -7,3 +9,9 @@
 
 int usec_sleep(int usec_delay);
 
+/* timer's callback handling */
+typedef void timer_callback( void );
+extern unsigned set_timer_callback(unsigned ms,timer_callback func);
+extern void restore_timer(void);
+
+#endif