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thread: name all threads so that the names appear in /proc/$PID/task/$TID/comm

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This commit is contained in:
Lennart Poettering 2010-05-03 13:28:15 +02:00
parent 22f708a1ec
commit bc7314f14e
23 changed files with 80 additions and 28 deletions
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48
src/pulsecore/thread-posix.c
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@ -28,6 +28,10 @@
#include <sched.h>
#include <errno.h>
#ifdef __linux__
#include <sys/prctl.h>
#endif
#include <pulse/xmalloc.h>
#include <pulsecore/mutex.h>
#include <pulsecore/once.h>
@ -42,6 +46,7 @@ struct pa_thread {
void *userdata;
pa_atomic_t running;
pa_bool_t joined;
char *name;
};
struct pa_tls {
@ -53,9 +58,11 @@ static void thread_free_cb(void *p) {
pa_assert(t);
if (!t->thread_func)
if (!t->thread_func) {
/* This is a foreign thread, we need to free the struct */
pa_xfree(t->name);
pa_xfree(t);
}
}
PA_STATIC_TLS_DECLARE(current_thread, thread_free_cb);
@ -64,6 +71,10 @@ static void* internal_thread_func(void *userdata) {
pa_thread *t = userdata;
pa_assert(t);
#ifdef __linux__
prctl(PR_SET_NAME, t->name);
#endif
t->id = pthread_self();
PA_STATIC_TLS_SET(current_thread, t);
@ -75,12 +86,13 @@ static void* internal_thread_func(void *userdata) {
return NULL;
}
pa_thread* pa_thread_new(pa_thread_func_t thread_func, void *userdata) {
pa_thread* pa_thread_new(const char *name, pa_thread_func_t thread_func, void *userdata) {
pa_thread *t;
pa_assert(thread_func);
t = pa_xnew0(pa_thread, 1);
t->name = pa_xstrdup(name);
t->thread_func = thread_func;
t->userdata = userdata;
@ -110,6 +122,8 @@ void pa_thread_free(pa_thread *t) {
pa_assert(t);
pa_thread_join(t);
pa_xfree(t->name);
pa_xfree(t);
}
@ -155,6 +169,36 @@ void pa_thread_set_data(pa_thread *t, void *userdata) {
t->userdata = userdata;
}
void pa_thread_set_name(pa_thread *t, const char *name) {
pa_assert(t);
pa_xfree(t->name);
t->name = pa_xstrdup(name);
#ifdef __linux__
prctl(PR_SET_NAME, name);
#endif
}
const char *pa_thread_get_name(pa_thread *t) {
pa_assert(t);
#ifdef __linux__
if (!t->name) {
t->name = pa_xmalloc(17);
if (prctl(PR_GET_NAME, t->name) >= 0)
t->name[16] = 0;
else {
pa_xfree(t->name);
t->name = NULL;
}
}
#endif
return t->name;
}
void pa_thread_yield(void) {
#ifdef HAVE_PTHREAD_YIELD
pthread_yield();