fd78260b53
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>
64 lines
1.2 KiB
C
64 lines
1.2 KiB
C
#include <dirent.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include "thread_map.h"
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/* Skip "." and ".." directories */
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static int filter(const struct dirent *dir)
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{
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if (dir->d_name[0] == '.')
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return 0;
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else
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return 1;
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}
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struct thread_map *thread_map__new_by_pid(pid_t pid)
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{
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struct thread_map *threads;
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char name[256];
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int items;
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struct dirent **namelist = NULL;
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int i;
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sprintf(name, "/proc/%d/task", pid);
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items = scandir(name, &namelist, filter, NULL);
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if (items <= 0)
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return NULL;
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threads = malloc(sizeof(*threads) + sizeof(pid_t) * items);
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if (threads != NULL) {
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for (i = 0; i < items; i++)
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threads->map[i] = atoi(namelist[i]->d_name);
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threads->nr = items;
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}
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for (i=0; i<items; i++)
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free(namelist[i]);
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free(namelist);
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return threads;
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}
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struct thread_map *thread_map__new_by_tid(pid_t tid)
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{
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struct thread_map *threads = malloc(sizeof(*threads) + sizeof(pid_t));
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if (threads != NULL) {
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threads->map[0] = tid;
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threads->nr = 1;
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}
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return threads;
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}
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struct thread_map *thread_map__new(pid_t pid, pid_t tid)
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{
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if (pid != -1)
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return thread_map__new_by_pid(pid);
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return thread_map__new_by_tid(tid);
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}
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void thread_map__delete(struct thread_map *threads)
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{
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free(threads);
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}
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