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Commit vodz's patch, plus a tweak to change TracePid to TracerPid. Now

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works on i386 (2.4.19) and arm (2.4.6).
This commit is contained in:
Manuel Novoa III 2002-09-18 19:27:10 +00:00
parent 06c35da6af
commit d499330e9e
1 changed files with 20 additions and 19 deletions
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39
procps/top.c
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@ -1,7 +1,7 @@
/*
* A tiny 'top' utility.
*
* This is written specifically for the linux 2.4 /proc/<PID>/status
* This is written specifically for the linux /proc/<PID>/status
* file format, but it checks that the file actually conforms to the
* format that this utility expects.
@ -151,19 +151,21 @@ static void display_status(int count, const status_t *s)
/* checks if given 'buf' for process starts with 'id' + ':' + TAB
* and stores rest of the buf to 'store' with max size 'size'
*/
static void process_status(const char *buf, const char *id, char *store, size_t size)
static int process_status(const char *buf, const char *id, char *store, size_t size)
{
int len, i;
if (!store) {
/* ignoring this field */
return;
}
/* check status field name */
len = strlen(id);
if (strncmp(buf, id, len) != 0) {
error_msg_and_die("ERROR status: line doesn't start with '%s' in:\n%s\n", id, buf);
if(store)
error_msg_and_die("ERROR status: line doesn't start with '%s' in:\n%s\n", id, buf);
else
return 0;
}
if (!store) {
/* ignoring this field */
return 1;
}
buf += len;
@ -193,9 +195,9 @@ static void process_status(const char *buf, const char *id, char *store, size_t
*store++ = *buf++;
}
*store = '\0';
return 1;
}
/* read process statuses */
static void read_status(int num, status_t *s)
{
@ -219,20 +221,20 @@ static void read_status(int num, status_t *s)
fgets(buf, sizeof(buf), fp);
process_status(buf, "State", s->state, sizeof(s->state));
fgets(buf, sizeof(buf), fp);
process_status(buf, "Tgid", NULL, 0);
fgets(buf, sizeof(buf), fp);
if(process_status(buf, "Tgid", NULL, 0))
fgets(buf, sizeof(buf), fp);
process_status(buf, "Pid", NULL, 0);
fgets(buf, sizeof(buf), fp);
process_status(buf, "PPid", s->ppid, sizeof(s->ppid));
fgets(buf, sizeof(buf), fp);
process_status(buf, "TracePid", NULL, 0);
fgets(buf, sizeof(buf), fp);
if(process_status(buf, "TracerPid", NULL, 0))
fgets(buf, sizeof(buf), fp);
process_status(buf, "Uid", s->uid, sizeof(s->uid));
fgets(buf, sizeof(buf), fp);
process_status(buf, "Gid", NULL, 0);
fgets(buf, sizeof(buf), fp);
process_status(buf, "FDSize", NULL, 0);
fgets(buf, sizeof(buf), fp);
if(process_status(buf, "FDSize", NULL, 0))
fgets(buf, sizeof(buf), fp);
process_status(buf, "Groups", NULL, 0);
fgets(buf, sizeof(buf), fp);
/* only user space processes have command line
@ -342,7 +344,6 @@ static int num_sort(const void *a, const void *b)
}
}
int top_main(int argc, char **argv)
{
status_t *statuslist;
@ -353,8 +354,8 @@ int top_main(int argc, char **argv)
#endif
/* Default update rate is 5 seconds */
interval = 5;
/* Default to 25 lines */
lines = 25;
/* Default to 25 lines - 5 lines for status */
lines = 25 - 5;
/* do normal option parsing */
while ((opt = getopt(argc, argv, "d:")) > 0) {
@ -370,7 +371,7 @@ int top_main(int argc, char **argv)
#if defined CONFIG_FEATURE_AUTOWIDTH && defined CONFIG_FEATURE_USE_TERMIOS
ioctl(fileno(stdout), TIOCGWINSZ, &win);
if (win.ws_row > 4)
lines = win.ws_row - 6;
lines = win.ws_row - 5;
#endif
/* change to proc */