eal: set name when creating a control thread

[dpdk.git] / lib / librte_eal / common / eal_common_thread.c

diff --git a/lib/librte_eal/common/eal_common_thread.c b/lib/librte_eal/common/eal_common_thread.c
index f1a88f8..b4335e0 100644 (file)
--- a/lib/librte_eal/common/eal_common_thread.c
+++ b/lib/librte_eal/common/eal_common_thread.c
@@ -36,6 +36,7 @@
 #include <stdint.h>
 #include <unistd.h>
 #include <pthread.h>
+#include <signal.h>
 #include <sched.h>
 #include <assert.h>
 #include <string.h>
@@ -170,9 +171,57 @@ exit:
        return ret;
 }
 
-int rte_ctrl_thread_create(pthread_t *thread,
+
+struct rte_thread_ctrl_params {
+       void *(*start_routine)(void *);
+       void *arg;
+       pthread_barrier_t launched;
+       pthread_barrier_t configured;
+};
+
+static void *rte_thread_init(void *arg)
+{
+       struct rte_thread_ctrl_params *params = arg;
+       void *(*start_routine)(void *) = params->start_routine;
+       void *routine_arg = params->arg;
+
+       pthread_barrier_wait(&params->launched);
+       pthread_barrier_wait(&params->configured);
+
+       return start_routine(routine_arg);
+}
+
+int rte_ctrl_thread_create(pthread_t *thread, const char *name,
                        const pthread_attr_t *attr,
                        void *(*start_routine)(void *), void *arg)
 {
-       return pthread_create(thread, attr, start_routine, arg);
+       struct rte_thread_ctrl_params params = {
+               .start_routine = start_routine,
+               .arg = arg,
+       };
+       int ret;
+
+       pthread_barrier_init(&params.launched, NULL, 2);
+       pthread_barrier_init(&params.configured, NULL, 2);
+
+       ret = pthread_create(thread, attr, rte_thread_init, (void *)&params);
+       if (ret != 0)
+               return ret;
+
+       pthread_barrier_wait(&params.launched);
+
+       if (name != NULL) {
+               ret = rte_thread_setname(*thread, name);
+               if (ret < 0)
+                       goto fail;
+       }
+
+       pthread_barrier_wait(&params.configured);
+
+       return 0;
+
+fail:
+       pthread_kill(*thread, SIGTERM);
+       pthread_join(*thread, NULL);
+       return ret;
 }