@@ -17,6 +17,7 @@

 #include <sys/mman.h>

 #include <sys/fcntl.h>

 #include <sys/time.h>

+#include <sys/wait.h>

 #include "config.h"

 #include "dprint.h"

@@ -331,32 +332,30 @@ int main_loop()

 static void sig_usr(int signo)

 {

-	DPrint("INT received, program terminates\n");

+	pid_t	chld;

+	int	chld_status;

+

 	if (signo==SIGINT || signo==SIGPIPE) {	/* exit gracefuly */

-#ifdef STATS

+		DPrint("INT received, program terminates\n");

+#		ifdef STATS

 		/* print statistics on exit only for the first process */

-

 		if (stats->process_index==0 && stat_file )

 			if (dump_all_statistic()==0)

 				printf("statistic dumped to %s\n", stat_file );

 			else

 				printf("statistics dump to %s failed\n", stat_file );

-#endif

+#		endif

 		/* WARNING: very dangerous, might be unsafe*/

 		if (is_main)

 			destroy_modules();

 #ifdef PKG_MALLOC

 		LOG(L_INFO, "Memory status (pkg):\n");

 		pkg_status();

-#endif

+#		endif

 #ifdef SHM_MEM

 		if (is_main){

 			LOG(L_INFO, "Memory status (shm):\n");

 			shm_status();

-		}

-#endif

-#ifdef SHM_MEM

-		if (is_main){

 			/*zero all shmem  alloc vars, that will still use*/

 			pids=0;

 			shm_mem_destroy();

@@ -376,6 +375,22 @@ static void sig_usr(int signo)

 		LOG(L_INFO, "Memory status (shm):\n");

 		shm_status();

 #endif

+	} else if (signo==SIGCHLD) {

+		while ((chld=waitpid( -1, &chld_status, WNOHANG ))>0) {

+			if (WIFEXITED(chld_status)) 

+				LOG(L_INFO, "child process %d exited normally, status=%d\n",

+					chld, WEXITSTATUS(chld_status));

+			else if (WIFSIGNALED(chld_status)) {

+				LOG(L_INFO, "child process %d exited by a signal %d\n",

+					chld, WTERMSIG(chld_status));

+#				ifdef WCOREDUMP

+				LOG(L_INFO, "core was %sgenerated\n", WCOREDUMP(chld_status) ?

+					"" : "not" );

+#				endif

+			} else if (WIFSTOPPED(chld_status)) 

+				LOG(L_INFO, "child process %d stopped by a signal %d\n",

+					chld, WSTOPSIG(chld_status));

+		}

 	}

 }

@@ -407,6 +422,10 @@ int main(int argc, char** argv)

 		DPrint("ERROR: no SIGUSR1 signal handler can be installed\n");

 		goto error;

 	}

+	if (signal(SIGCHLD , sig_usr)  == SIG_ERR ) {

+		DPrint("ERROR: no SIGCHLD signal handler can be installed\n");

+		goto error;

+	}

 	//memtest();

 	//hashtest();