Works a little bit more like `ps' - you can give an optional command line

1998-08-12  Martin Baulig  <martin@home-of-linux.org>

	* second.c: Works a little bit more like `ps' - you can
	give an optional command line argument to get information
	about a single process.

examples/ChangeLog

@@ -1,3 +1,9 @@
+1998-08-12  Martin Baulig  <martin@home-of-linux.org>
+
+	* second.c: Works a little bit more like `ps' - you can
+	give an optional command line argument to get information
+	about a single process.
+
 1998-07-22  Martin Baulig  <martin@home-of-linux.org>
 
 	* mountlist.c: New file.

examples/second.c

@@ -29,57 +29,10 @@
 #include <glibtop/union.h>
 #include <glibtop/sysdeps.h>
 
-int
+static void
-main (int argc, char *argv [])
+output (pid_t pid)
 {
 	glibtop_union data;
-	glibtop_proclist proclist;
-	glibtop_sysdeps sysdeps;
-	unsigned *ptr, pid, i;
-
-	setlocale (LC_ALL, "");
-	bindtextdomain (PACKAGE, GTOPLOCALEDIR);
-	textdomain (PACKAGE);
-	
-	glibtop_init ();
-
-	glibtop_get_sysdeps (&sysdeps);
-
-	printf ("Sysdeps      (0x%08lx): %lu, %lu, %lu, %lu, %lu, "
-		"%lu, %lu, %lu, %lu, %lu, %lu, %lu, %lu, %lu, %lu, %lu\n",
-		(unsigned long) sysdeps.flags,
-		(unsigned long) sysdeps.cpu,
-		(unsigned long) sysdeps.mem,
-		(unsigned long) sysdeps.swap,
-		(unsigned long) sysdeps.uptime,
-		(unsigned long) sysdeps.loadavg,
-		(unsigned long) sysdeps.shm_limits,
-		(unsigned long) sysdeps.msg_limits,
-		(unsigned long) sysdeps.sem_limits,
-		(unsigned long) sysdeps.proclist,
-		(unsigned long) sysdeps.proc_state,
-		(unsigned long) sysdeps.proc_uid,
-		(unsigned long) sysdeps.proc_mem,
-		(unsigned long) sysdeps.proc_time,
-		(unsigned long) sysdeps.proc_signal,
-		(unsigned long) sysdeps.proc_kernel,
-		(unsigned long) sysdeps.proc_segment);
-
-	printf ("\n");
-	
-	ptr = glibtop_get_proclist (&proclist, 0, 0);
-
-	printf ("Proclist     (0x%08lx): %lu, %lu, %lu\n",
-		(unsigned long) data.proclist.flags,
-		(unsigned long) data.proclist.number,
-		(unsigned long) data.proclist.size,
-		(unsigned long) data.proclist.total);
-
-	if (!ptr) exit (1);
-
-	for (i = 0; i < proclist.number; i++) {
-
-		pid = ptr [i];
 
 	printf ("\n");
 		
@@ -170,6 +123,66 @@ main (int argc, char *argv [])
 		data.proc_kernel.wchan);
 
 	printf ("\n");
+}
+
+int
+main (int argc, char *argv [])
+{
+	glibtop_proclist proclist;
+	glibtop_sysdeps sysdeps;
+	unsigned *ptr, pid, i;
+
+	setlocale (LC_ALL, "");
+	bindtextdomain (PACKAGE, GTOPLOCALEDIR);
+	textdomain (PACKAGE);
+	
+	glibtop_init ();
+
+	glibtop_get_sysdeps (&sysdeps);
+
+	printf ("Sysdeps      (0x%08lx): %lu, %lu, %lu, %lu, %lu, "
+		"%lu, %lu, %lu, %lu, %lu, %lu, %lu, %lu, %lu, %lu, %lu\n",
+		(unsigned long) sysdeps.flags,
+		(unsigned long) sysdeps.cpu,
+		(unsigned long) sysdeps.mem,
+		(unsigned long) sysdeps.swap,
+		(unsigned long) sysdeps.uptime,
+		(unsigned long) sysdeps.loadavg,
+		(unsigned long) sysdeps.shm_limits,
+		(unsigned long) sysdeps.msg_limits,
+		(unsigned long) sysdeps.sem_limits,
+		(unsigned long) sysdeps.proclist,
+		(unsigned long) sysdeps.proc_state,
+		(unsigned long) sysdeps.proc_uid,
+		(unsigned long) sysdeps.proc_mem,
+		(unsigned long) sysdeps.proc_time,
+		(unsigned long) sysdeps.proc_signal,
+		(unsigned long) sysdeps.proc_kernel,
+		(unsigned long) sysdeps.proc_segment);
+
+	if ((argc == 2) && (sscanf (argv [1], "%d", &pid) == 1)) {
+		output (pid);
+
+		exit (0);
+	}
+
+	printf ("\n");
+
+	ptr = glibtop_get_proclist (&proclist, 0, 0);
+
+	printf ("Proclist     (0x%08lx): %lu, %lu, %lu\n",
+		(unsigned long) proclist.flags,
+		(unsigned long) proclist.number,
+		(unsigned long) proclist.size,
+		(unsigned long) proclist.total);
+
+	if (!ptr) exit (1);
+
+	for (i = 0; i < proclist.number; i++) {
+
+		pid = ptr [i];
+		
+		output (pid);
 	}
 
 	glibtop_free (ptr);