X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=urcu-call-rcu-impl.h;h=13b24ff20b7c71c265c1fc5b0b3d17f1c28ce55c;hb=9f59b2209b3a4bde416bcfa55b10c36b16fa91ae;hp=36e3cf4b93a5904b5fc1e3d0ee84eccd1cc3d9ea;hpb=a0b7f7ea3fc3339a1c42caffd53ce9f056e5b901;p=urcu.git

diff --git a/urcu-call-rcu-impl.h b/urcu-call-rcu-impl.h
index 36e3cf4..13b24ff 100644
--- a/urcu-call-rcu-impl.h
+++ b/urcu-call-rcu-impl.h
@@ -40,6 +40,8 @@
 #include "urcu-pointer.h"
 #include "urcu/list.h"
 #include "urcu/futex.h"
+#include "urcu/tls-compat.h"
+#include "urcu-die.h"
 
 /* Data structure that identifies a call_rcu thread. */
 
@@ -62,7 +64,7 @@ CDS_LIST_HEAD(call_rcu_data_list);
 
 /* Link a thread using call_rcu() to its call_rcu thread. */
 
-static __thread struct call_rcu_data *thread_call_rcu_data;
+static DEFINE_URCU_TLS(struct call_rcu_data *, thread_call_rcu_data);
 
 /* Guard call_rcu thread creation. */
 
@@ -150,20 +152,22 @@ static int sched_getcpu(void)
 
 static void call_rcu_lock(pthread_mutex_t *pmp)
 {
-	if (pthread_mutex_lock(pmp) != 0) {
-		perror("pthread_mutex_lock");
-		exit(-1);
-	}
+	int ret;
+
+	ret = pthread_mutex_lock(pmp);
+	if (ret)
+		urcu_die(ret);
 }
 
 /* Release the specified pthread mutex. */
 
 static void call_rcu_unlock(pthread_mutex_t *pmp)
 {
-	if (pthread_mutex_unlock(pmp) != 0) {
-		perror("pthread_mutex_unlock");
-		exit(-1);
-	}
+	int ret;
+
+	ret = pthread_mutex_unlock(pmp);
+	if (ret)
+		urcu_die(ret);
 }
 
 #if HAVE_SCHED_SETAFFINITY
@@ -221,18 +225,18 @@ static void *call_rcu_thread(void *arg)
 	struct call_rcu_data *crdp = (struct call_rcu_data *)arg;
 	struct rcu_head *rhp;
 	int rt = !!(uatomic_read(&crdp->flags) & URCU_CALL_RCU_RT);
+	int ret;
 
-	if (set_thread_cpu_affinity(crdp) != 0) {
-		perror("pthread_setaffinity_np");
-		exit(-1);
-	}
+	ret = set_thread_cpu_affinity(crdp);
+	if (ret)
+		urcu_die(errno);
 
 	/*
 	 * If callbacks take a read-side lock, we need to be registered.
 	 */
 	rcu_register_thread();
 
-	thread_call_rcu_data = crdp;
+	URCU_TLS(thread_call_rcu_data) = crdp;
 	if (!rt) {
 		uatomic_dec(&crdp->futex);
 		/* Decrement futex before reading call_rcu list */
@@ -307,12 +311,11 @@ static void call_rcu_data_init(struct call_rcu_data **crdpp,
 			       int cpu_affinity)
 {
 	struct call_rcu_data *crdp;
+	int ret;
 
 	crdp = malloc(sizeof(*crdp));
-	if (crdp == NULL) {
-		fprintf(stderr, "Out of memory.\n");
-		exit(-1);
-	}
+	if (crdp == NULL)
+		urcu_die(errno);
 	memset(crdp, '\0', sizeof(*crdp));
 	cds_wfq_init(&crdp->cbs);
 	crdp->qlen = 0;
@@ -322,10 +325,9 @@ static void call_rcu_data_init(struct call_rcu_data **crdpp,
 	crdp->cpu_affinity = cpu_affinity;
 	cmm_smp_mb();  /* Structure initialized before pointer is planted. */
 	*crdpp = crdp;
-	if (pthread_create(&crdp->tid, NULL, call_rcu_thread, crdp) != 0) {
-		perror("pthread_create");
-		exit(-1);
-	}
+	ret = pthread_create(&crdp->tid, NULL, call_rcu_thread, crdp);
+	if (ret)
+		urcu_die(ret);
 }
 
 /*
@@ -470,8 +472,8 @@ struct call_rcu_data *get_call_rcu_data(void)
 {
 	struct call_rcu_data *crd;
 
-	if (thread_call_rcu_data != NULL)
-		return thread_call_rcu_data;
+	if (URCU_TLS(thread_call_rcu_data) != NULL)
+		return URCU_TLS(thread_call_rcu_data);
 
 	if (maxcpus > 0) {
 		crd = get_cpu_call_rcu_data(sched_getcpu());
@@ -488,7 +490,7 @@ struct call_rcu_data *get_call_rcu_data(void)
 
 struct call_rcu_data *get_thread_call_rcu_data(void)
 {
-	return thread_call_rcu_data;
+	return URCU_TLS(thread_call_rcu_data);
 }
 
 /*
@@ -504,7 +506,7 @@ struct call_rcu_data *get_thread_call_rcu_data(void)
 
 void set_thread_call_rcu_data(struct call_rcu_data *crdp)
 {
-	thread_call_rcu_data = crdp;
+	URCU_TLS(thread_call_rcu_data) = crdp;
 }
 
 /*
@@ -746,7 +748,7 @@ void call_rcu_after_fork_child(void)
 	maxcpus_reset();
 	free(per_cpu_call_rcu_data);
 	rcu_set_pointer(&per_cpu_call_rcu_data, NULL);
-	thread_call_rcu_data = NULL;
+	URCU_TLS(thread_call_rcu_data) = NULL;
 
 	/* Dispose of all of the rest of the call_rcu_data structures. */
 	cds_list_for_each_entry_safe(crdp, next, &call_rcu_data_list, list) {