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Build urcu-qsbr.so library, update README
[urcu.git]
/
urcu-qsbr.c
diff --git
a/urcu-qsbr.c
b/urcu-qsbr.c
index 6ba03642f852763057781dcf14bf2ff4a01dc5b9..300eb970e17f5031be51d4421a1e4a3a0080cd38 100644
(file)
--- a/
urcu-qsbr.c
+++ b/
urcu-qsbr.c
@@
-1,7
+1,7
@@
/*
/*
- * urcu.c
+ * urcu
-qsbr
.c
*
*
- * Userspace RCU library
+ * Userspace RCU
QSBR
library
*
* Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
* Copyright (c) 2009 Paul E. McKenney, IBM Corporation.
*
* Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
* Copyright (c) 2009 Paul E. McKenney, IBM Corporation.
@@
-32,9
+32,9
@@
#include <errno.h>
#include <poll.h>
#include <errno.h>
#include <poll.h>
-#include "urcu-qsbr.h"
+#include "urcu-qsbr
-static
.h"
/* Do not #define _LGPL_SOURCE to ensure we can emit the wrapper symbols */
/* Do not #define _LGPL_SOURCE to ensure we can emit the wrapper symbols */
-
//#include "urcu
.h"
+
#include "urcu-qsbr
.h"
pthread_mutex_t urcu_mutex = PTHREAD_MUTEX_INITIALIZER;
pthread_mutex_t urcu_mutex = PTHREAD_MUTEX_INITIALIZER;
@@
-200,6
+200,21
@@
void *rcu_publish_content_sym(void **p, void *v)
return oldptr;
}
return oldptr;
}
+void rcu_quiescent_state(void)
+{
+ _rcu_quiescent_state();
+}
+
+void rcu_thread_offline(void)
+{
+ _rcu_thread_offline();
+}
+
+void rcu_thread_online(void)
+{
+ _rcu_thread_online();
+}
+
static void rcu_add_reader(pthread_t id)
{
struct reader_registry *oldarray;
static void rcu_add_reader(pthread_t id)
{
struct reader_registry *oldarray;
@@
-254,10
+269,16
@@
void rcu_register_thread(void)
internal_urcu_lock();
rcu_add_reader(pthread_self());
internal_urcu_unlock();
internal_urcu_lock();
rcu_add_reader(pthread_self());
internal_urcu_unlock();
+ _rcu_thread_online();
}
void rcu_unregister_thread(void)
{
}
void rcu_unregister_thread(void)
{
+ /*
+ * We have to make the thread offline otherwise we end up dealocking
+ * with a waiting writer.
+ */
+ _rcu_thread_offline();
internal_urcu_lock();
rcu_remove_reader(pthread_self());
internal_urcu_unlock();
internal_urcu_lock();
rcu_remove_reader(pthread_self());
internal_urcu_unlock();
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