[u/mrichter/AliRoot.git] / MONITOR / AliChildReaper.cxx

// @(#)root/eve:$Id$
// Author: Matevz Tadel 2007

/**************************************************************************
 * Copyright(c) 1998-2008, ALICE Experiment at CERN, all rights reserved. *
 * See http://aliceinfo.cern.ch/Offline/AliRoot/License.html for          *
 * full copyright notice.                                                 *
 **************************************************************************/

#include "AliChildReaper.h"

#include <sys/wait.h>

//______________________________________________________________________________
// Full description of AliChildReaper
//

ClassImp(AliChildReaper)

AliChildReaper* AliChildReaper::fgTheOne = 0;

AliChildReaper* AliChildReaper::Instance()
{
  if (fgTheOne == 0)
    fgTheOne = new AliChildReaper;
  return fgTheOne;
}

AliChildReaper::AliChildReaper()
{
  struct sigaction sac;
  sac.sa_handler = sig_handler;
  sigemptyset(&sac.sa_mask);
  sac.sa_flags = 0;
  sigaction(SIGCHLD, &sac, 0);
}

void AliChildReaper::sig_handler(int /*sig*/)
{
  int   status;
  pid_t pid = wait(&status);
  Instance()->ChildDeath(pid, status);
}

void AliChildReaper::ChildDeath(Int_t pid, Int_t status)
{
   Long_t args[2];
   args[0] = (Long_t) pid;
   args[1] = (Long_t) status;

   Emit("ChildDeath(Int_t,Int_t)", args);
}
Commit	Line	Data
	1	// @(#)root/eve:$Id$
	2	// Author: Matevz Tadel 2007
	3
	4	/**************************************************************************
	5	* Copyright(c) 1998-2008, ALICE Experiment at CERN, all rights reserved. *
	6	* See http://aliceinfo.cern.ch/Offline/AliRoot/License.html for *
	7	* full copyright notice. *
	8	**************************************************************************/
	9
	10	#include "AliChildReaper.h"
	11
	12	#include <sys/wait.h>
	13
	14	//______________________________________________________________________________
	15	// Full description of AliChildReaper
	16	//
	17
	18	ClassImp(AliChildReaper)
	19
	20	AliChildReaper* AliChildReaper::fgTheOne = 0;
	21
	22	AliChildReaper* AliChildReaper::Instance()
	23	{
	24	if (fgTheOne == 0)
	25	fgTheOne = new AliChildReaper;
	26	return fgTheOne;
	27	}
	28
	29	AliChildReaper::AliChildReaper()
	30	{
	31	struct sigaction sac;
	32	sac.sa_handler = sig_handler;
	33	sigemptyset(&sac.sa_mask);
	34	sac.sa_flags = 0;
	35	sigaction(SIGCHLD, &sac, 0);
	36	}
	37
	38	void AliChildReaper::sig_handler(int /sig/)
	39	{
	40	int status;
	41	pid_t pid = wait(&status);
	42	Instance()->ChildDeath(pid, status);
	43	}
	44
	45	void AliChildReaper::ChildDeath(Int_t pid, Int_t status)
	46	{
	47	Long_t args[2];
	48	args[0] = (Long_t) pid;
	49	args[1] = (Long_t) status;
	50
	51	Emit("ChildDeath(Int_t,Int_t)", args);
	52	}