seconda prova

[gapil.git] / sources / ForkTest.c

diff --git a/sources/ForkTest.c b/sources/ForkTest.c
index 5401e319be20b79d721225d8bd340cafbe060f62..f12792edf357493be08c9192252f8b66ddc31945 100644 (file)
--- a/sources/ForkTest.c
+++ b/sources/ForkTest.c
@@ -26,7 +26,7 @@
  *
  * Usage: forktest -h give all info's
  *
- * $Id: ForkTest.c,v 1.5 2001/09/19 17:10:49 piccardi Exp $
+ * $Id: ForkTest.c,v 1.10 2003/05/02 09:55:13 piccardi Exp $
  *
  ****************************************************************/
 /* 
@@ -38,6 +38,9 @@
 #include <stdio.h>      /* standard I/O library */
 #include <string.h>      /* string functions */
 
+#include "Gapil.h"
+#include "macros.h"
+
 /* Help printing routine */
 void usage(void);
 
@@ -56,7 +59,7 @@ int main(int argc, char *argv[])
      * Use getopt function
      */
     opterr = 0;         /* don't want writing to stderr */
-    while ( (i = getopt(argc, argv, "hp:c:e:")) != -1) {
+    while ( (i = getopt(argc, argv, "hsp:c:e:")) != -1) {
        switch (i) {
        /* 
         * Handling options 
@@ -75,6 +78,9 @@ int main(int argc, char *argv[])
        case 'e':   /* take wait before parent exit */
            wait_end = strtol(optarg, NULL, 10);      /* convert input */
            break;
+       case 's':
+           Signal(SIGCHLD, HandSigCHLD);
+           break;
        case '?':   /* unrecognized options */
            printf("Unrecognized options -%c\n",optopt);
            usage();
@@ -94,7 +100,7 @@ int main(int argc, char *argv[])
        usage();
     }
     nchild = atoi(argv[optind]);
-    printf("Test for forking %d child\n", nchild);
+    printf("Process %d: forking %d child\n", getpid(), nchild);
     /* loop to fork children */
     for (i=0; i<nchild; i++) {
        if ( (pid = fork()) < 0) { 
@@ -125,6 +131,7 @@ void usage(void) {
     printf("Usage:\n");
     printf("  forktest [-h] [-p sec] [-c sec] [-e sec] child to fork \n");
     printf("  -h          print this help\n");
+    printf("  -s          install signal handler\n");
     printf("  -p sec       wait sec seconds before next fork\n");
     printf("  -c sec       wait sec seconds before child termination\n");
     printf("  -e sec       wait sec seconds before parent return\n");