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Initialize `ncpu' on SMP systems.

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1998-09-09  Martin Baulig <baulig@Stud.Informatik.uni-trier.de>

	* open.c (glibtop_init_s): Initialize `ncpu' on SMP systems.

	* cpu.c (glibtop_get_cpu_s): Added SMP support.

	* ChangeLog: New file.
This commit is contained in:
Martin Baulig
1998-09-09 15:17:12 +00:00
committed by Martin Baulig
parent 731b2879f0
commit 9d564134de
3 changed files with 86 additions and 3 deletions
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42
sysdeps/linux/open.c
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@@ -19,6 +19,8 @@
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <glibtop.h>
#include <glibtop/cpu.h>
#include <glibtop/open.h>
/* =====================================================
@@ -50,12 +52,52 @@ static void set_linux_version(void) {
/* Opens pipe to gtop server. Returns 0 on success and -1 on error. */
#define FILENAME "/proc/stat"
void
glibtop_open_s (glibtop *server, const char *program_name,
const unsigned long features, const unsigned flags)
{
#ifdef HAVE_LIBGTOP_SMP
char buffer [BUFSIZ], *p;
int fd, len, i;
#endif
server->name = program_name;
set_linux_version ();
server->os_version_code = (unsigned long) linux_version_code;
server->ncpu = 0;
#ifdef HAVE_LIBGTOP_SMP
fd = open (FILENAME, O_RDONLY);
if (fd < 0)
glibtop_error_io_r (server, "open (%s)", FILENAME);
len = read (fd, buffer, BUFSIZ-1);
if (len < 0)
glibtop_error_io_r (server, "read (%s)", FILENAME);
close (fd);
buffer [len] = '\0';
p = skip_multiple_token (buffer, 5) + 1;
for (i = 0; i < GLIBTOP_NCPU; i++) {
if (strncmp (p, "cpu", 3) || !isdigit (p [3]))
break;
server->ncpu++;
p = skip_multiple_token (p, 5) + 1;
}
#if DEBUG
printf ("\nThis machine has %d CPUs.\n\n", server->ncpu);
#endif
#endif
}