Impala Documentation

bool Impala::Process::Manager4Posix::IsRunning ( int pid ) [inline, virtual]

Definition at line 138 of file Manager4Posix.h.

References mProcesses, SetExitCode(), and Impala::Process::Manager::STATE_RUNNING.

Referenced by GetExitCode(), GetState(), IsTerminated(), and Kill().

00139     {
00140         //Check only if we think it's still running
00141         if(mProcesses[pid].stateCode == STATE_RUNNING)
00142         {
00143             //Check if the process still exists
00144             int status;
00145             int ret=waitpid(pid, &status, WNOHANG);
00146             //ret will be 0 if process is running
00147             if(ret==0)
00148                 return true;
00149             else
00150             {
00151                 SetExitCode(pid,status,ret);
00152                 return false;
00153             }
00154         }
00155         else//Already finished, and we have collected the exit code before
00156             return false;
00157     }

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