Chillcraft/libgtop
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Major code cleanups, we now use open () and read ().

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This commit is contained in:
Martin Baulig
1998-08-16 13:37:14 +00:00
parent 486cc220c4
commit 36657db940
6 changed files with 162 additions and 49 deletions
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26
sysdeps/linux/cpu.c
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@@ -43,7 +43,8 @@ glibtop_init_cpu_s (glibtop *server)
void
glibtop_get_cpu_s (glibtop *server, glibtop_cpu *buf)
{
FILE *f;
char buffer [BUFSIZ], *p;
int fd, len;
glibtop_init_s (&server, GLIBTOP_SYSDEPS_CPU, 0);
@@ -51,15 +52,26 @@ glibtop_get_cpu_s (glibtop *server, glibtop_cpu *buf)
buf->flags = _glibtop_sysdeps_cpu;
f = fopen ("/proc/stat", "r");
if (!f) return;
fd = open (FILENAME, O_RDONLY);
if (fd < 0)
glibtop_error_io_r (server, "open (%s)", FILENAME);
fscanf (f, "cpu %Lu %Lu %Lu %Lu\n",
&buf->user, &buf->nice, &buf->sys, &buf->idle);
len = read (fd, buffer, BUFSIZ-1);
if (len < 0)
glibtop_error_io_r (server, "read (%s)", FILENAME);
close (fd);
buffer [len] = '\0';
p = skip_token (buffer); /* "cpu" */
buf->user = strtoul (p, &p, 0);
buf->nice = strtoul (p, &p, 0);
buf->sys = strtoul (p, &p, 0);
buf->idle = strtoul (p, &p, 0);
buf->total = buf->user + buf->nice + buf->sys + buf->idle;
buf->frequency = 100;
fclose (f);
}