![Arnaldo Carvalho de Melo](/assets/img/avatar_default.png)
To untangle it from struct thread handling, that is tied to symbols, etc. Right now in the python bindings I'm working on I need just a subset of the util/ files, untangling it allows me to do that. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
65 lines
1.2 KiB
C
65 lines
1.2 KiB
C
#include <dirent.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include "thread_map.h"
|
|
|
|
/* Skip "." and ".." directories */
|
|
static int filter(const struct dirent *dir)
|
|
{
|
|
if (dir->d_name[0] == '.')
|
|
return 0;
|
|
else
|
|
return 1;
|
|
}
|
|
|
|
struct thread_map *thread_map__new_by_pid(pid_t pid)
|
|
{
|
|
struct thread_map *threads;
|
|
char name[256];
|
|
int items;
|
|
struct dirent **namelist = NULL;
|
|
int i;
|
|
|
|
sprintf(name, "/proc/%d/task", pid);
|
|
items = scandir(name, &namelist, filter, NULL);
|
|
if (items <= 0)
|
|
return NULL;
|
|
|
|
threads = malloc(sizeof(*threads) + sizeof(pid_t) * items);
|
|
if (threads != NULL) {
|
|
for (i = 0; i < items; i++)
|
|
threads->map[i] = atoi(namelist[i]->d_name);
|
|
threads->nr = items;
|
|
}
|
|
|
|
for (i=0; i<items; i++)
|
|
free(namelist[i]);
|
|
free(namelist);
|
|
|
|
return threads;
|
|
}
|
|
|
|
struct thread_map *thread_map__new_by_tid(pid_t tid)
|
|
{
|
|
struct thread_map *threads = malloc(sizeof(*threads) + sizeof(pid_t));
|
|
|
|
if (threads != NULL) {
|
|
threads->map[0] = tid;
|
|
threads->nr = 1;
|
|
}
|
|
|
|
return threads;
|
|
}
|
|
|
|
struct thread_map *thread_map__new(pid_t pid, pid_t tid)
|
|
{
|
|
if (pid != -1)
|
|
return thread_map__new_by_pid(pid);
|
|
return thread_map__new_by_tid(tid);
|
|
}
|
|
|
|
void thread_map__delete(struct thread_map *threads)
|
|
{
|
|
free(threads);
|
|
}
|