* IBM's contributions to this file may be relicensed under LGPLv2 or later.
*/
+#define URCU_NO_COMPAT_IDENTIFIERS
#define _LGPL_SOURCE
#include <stdio.h>
#include <pthread.h>
#include <signal.h>
-#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <stdbool.h>
#include <sys/mman.h>
+#include <urcu/assert.h>
+#include <urcu/config.h>
#include <urcu/arch.h>
#include <urcu/wfcqueue.h>
#include <urcu/map/urcu-bp.h>
#include <urcu/tls-compat.h>
#include "urcu-die.h"
+#include "urcu-utils.h"
#define URCU_API_MAP
/* Do not #define _LGPL_SOURCE to ensure we can emit the wrapper symbols */
* This is not generic.
*/
static
-void *mremap_wrapper(void *old_address, size_t old_size,
- size_t new_size, int flags)
+void *mremap_wrapper(void *old_address __attribute__((unused)),
+ size_t old_size __attribute__((unused)),
+ size_t new_size __attribute__((unused)),
+ int flags)
{
- assert(!(flags & MREMAP_MAYMOVE));
+ urcu_posix_assert(!(flags & MREMAP_MAYMOVE));
return MAP_FAILED;
}
static pthread_key_t urcu_bp_key;
struct urcu_bp_gp urcu_bp_gp = { .ctr = URCU_BP_GP_COUNT };
-__attribute__((alias("urcu_bp_gp"))) extern struct urcu_bp_gp rcu_gp_bp;
/*
* Pointer to registry elements. Written to only by each individual reader. Read
* by both the reader and the writers.
*/
DEFINE_URCU_TLS(struct urcu_bp_reader *, urcu_bp_reader);
-__attribute__((alias("urcu_bp_reader")))
-extern struct urcu_bp_reader *rcu_reader_bp;
static CDS_LIST_HEAD(registry);
int ret;
ret = sigfillset(&newmask);
- assert(!ret);
+ urcu_posix_assert(!ret);
ret = pthread_sigmask(SIG_BLOCK, &newmask, &oldmask);
- assert(!ret);
+ urcu_posix_assert(!ret);
mutex_lock(&rcu_gp_lock);
/*
* Wait for readers to observe original parity or be quiescent.
* wait_for_readers() can release and grab again rcu_registry_lock
- * interally.
+ * internally.
*/
wait_for_readers(®istry, &cur_snap_readers, &qsreaders);
/*
* Wait for readers to observe new parity or be quiescent.
* wait_for_readers() can release and grab again rcu_registry_lock
- * interally.
+ * internally.
*/
wait_for_readers(&cur_snap_readers, NULL, &qsreaders);
mutex_unlock(&rcu_registry_lock);
mutex_unlock(&rcu_gp_lock);
ret = pthread_sigmask(SIG_SETMASK, &oldmask, NULL);
- assert(!ret);
+ urcu_posix_assert(!ret);
}
-__attribute__((alias("urcu_bp_synchronize_rcu"))) void synchronize_rcu_bp();
/*
* library wrappers to be used by non-LGPL compatible source code.
{
_urcu_bp_read_lock();
}
-__attribute__((alias("urcu_bp_read_lock"))) void rcu_read_lock_bp();
void urcu_bp_read_unlock(void)
{
_urcu_bp_read_unlock();
}
-__attribute__((alias("urcu_bp_read_unlock"))) void rcu_read_unlock_bp();
int urcu_bp_read_ongoing(void)
{
return _urcu_bp_read_ongoing();
}
-__attribute__((alias("urcu_bp_read_ongoing"))) int rcu_read_ongoing_bp();
/*
* Only grow for now. If empty, allocate a ARENA_INIT_ALLOC sized chunk.
/* No chunk. */
if (cds_list_empty(&arena->chunk_list)) {
- assert(ARENA_INIT_ALLOC >=
+ urcu_posix_assert(ARENA_INIT_ALLOC >=
sizeof(struct registry_chunk)
+ sizeof(struct rcu_reader));
new_chunk_len = ARENA_INIT_ALLOC;
new_chunk_len, 0);
if (new_chunk != MAP_FAILED) {
/* Should not have moved. */
- assert(new_chunk == last_chunk);
+ urcu_posix_assert(new_chunk == last_chunk);
memset((char *) last_chunk + old_chunk_len, 0,
new_chunk_len - old_chunk_len);
last_chunk->data_len =
/* Add to registry */
rcu_reader_reg->tid = pthread_self();
- assert(rcu_reader_reg->ctr == 0);
+ urcu_posix_assert(rcu_reader_reg->ctr == 0);
cds_list_add(&rcu_reader_reg->node, ®istry);
/*
* Reader threads are pointing to the reader registry. This is
if (ret)
abort();
}
-__attribute__((alias("urcu_bp_register"))) void rcu_bp_register();
+
+void urcu_bp_register_thread(void)
+{
+ if (caa_unlikely(!URCU_TLS(urcu_bp_reader)))
+ urcu_bp_register(); /* If not yet registered. */
+}
/* Disable signals, take mutex, remove from registry */
static
int ret;
ret = sigfillset(&newmask);
- assert(!ret);
+ urcu_posix_assert(!ret);
ret = pthread_sigmask(SIG_BLOCK, &newmask, &oldmask);
- assert(!ret);
+ urcu_posix_assert(!ret);
mutex_lock(&rcu_gp_lock);
mutex_lock(&rcu_registry_lock);
saved_fork_signal_mask = oldmask;
}
-__attribute__((alias("urcu_bp_before_fork"))) void rcu_bp_before_fork();
void urcu_bp_after_fork_parent(void)
{
mutex_unlock(&rcu_registry_lock);
mutex_unlock(&rcu_gp_lock);
ret = pthread_sigmask(SIG_SETMASK, &oldmask, NULL);
- assert(!ret);
+ urcu_posix_assert(!ret);
}
-__attribute__((alias("urcu_bp_after_fork_parent")))
-void rcu_bp_after_fork_parent(void);
/*
* Prune all entries from registry except our own thread. Fits the Linux
mutex_unlock(&rcu_registry_lock);
mutex_unlock(&rcu_gp_lock);
ret = pthread_sigmask(SIG_SETMASK, &oldmask, NULL);
- assert(!ret);
+ urcu_posix_assert(!ret);
}
-__attribute__((alias("urcu_bp_after_fork_child")))
-void rcu_bp_after_fork_child(void);
void *urcu_bp_dereference_sym(void *p)
{
return _rcu_dereference(p);
}
-__attribute__((alias("urcu_bp_dereference_sym")))
-void *rcu_dereference_sym_bp();
void *urcu_bp_set_pointer_sym(void **p, void *v)
{
uatomic_set(p, v);
return v;
}
-__attribute__((alias("urcu_bp_set_pointer_sym")))
-void *rcu_set_pointer_sym_bp();
void *urcu_bp_xchg_pointer_sym(void **p, void *v)
{
cmm_wmb();
return uatomic_xchg(p, v);
}
-__attribute__((alias("urcu_bp_xchg_pointer_sym")))
-void *rcu_xchg_pointer_sym_bp();
void *urcu_bp_cmpxchg_pointer_sym(void **p, void *old, void *_new)
{
cmm_wmb();
return uatomic_cmpxchg(p, old, _new);
}
-__attribute__((alias("urcu_bp_cmpxchg_pointer_sym")))
-void *rcu_cmpxchg_pointer_sym_bp();
DEFINE_RCU_FLAVOR(rcu_flavor);
-DEFINE_RCU_FLAVOR_ALIAS(rcu_flavor, alias_rcu_flavor);
#include "urcu-call-rcu-impl.h"
#include "urcu-defer-impl.h"
projects / urcu.git / blobdiff