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Full Discussion: Help with task daemon
Top Forums Programming Help with task daemon Post 302305837 by james2432 on Thursday 9th of April 2009 09:40:24 PM
Old 04-09-2009
Thanks for the help i was tired(i program all day long) and facepalmed when you mentioned the %d for decimal... i should have known

everything is sort of working mplayer never quits now :P
Code:
    while(1){ 
          int rc=system("ps -C mplayer -opid=");
                 
          rc = WEXITSTATUS(rc); /* Check if mplayer is running */
            printf("I was here pid: %d\n",rc); 
       if(rc > 0 ){
               
              pid = fork(); 
              if(pid>=0){     
                if (pid == 0)  
                 ChildProcess(); 
                else  
                 ParentProcess(); 
                } 
              } 
       else 
          {/*fork error*/}
   
     }
return (0); 
} 
 
void  ChildProcess(void) 
{ 
     system("mplayer ~/test.avi"); 
     exit(0); 
} 
 
void  ParentProcess(void) 
{ 
    sleep(2); 
    return; 
}

 

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TRACE(1)						    BSD General Commands Manual 						  TRACE(1)

NAME
trace -- configure and record kernel trace events SYNOPSIS
trace -h trace -i [-b numbufs] trace -g trace -d [-a pid | -x pid] trace -r trace -n trace -e [-c class [-p class] [-s subclass]] [-a pid | -x pid] [-k code | -k code | -k code | -k code] trace -E [-c class [-p class] [-s subclass]] [-a pid | -x pid] [-k code | -k code | -k code | -k code] executable_path [optional args to executable] trace -t [-R rawfile] [-o OutputFilename] [-N] [ExtraCodeFilename1 ExtraCodeFilename2 ...] DESCRIPTION
The trace command allows developers to initialize and configure the kernel trace subsystem. Trace events can be recorded to an in-memory buf- fer, or logged directly to a file. Raw data files can later be decoded to a plaintext format. SEE ALSO
fs_usage(1), sc_usage(1), latency(1), top(1) Mac OS X October 28, 2010 Mac OS X
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