X-Git-Url: http://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=urcu-bp.c;h=3b2062d6590034ad33619ab1372b137237a9fd1e;hp=2b531a3ca679ae95a00e21f773b8d70044e47b4a;hb=541d828d3101283ccdb1e25fa5a885e1d1743c1a;hpb=45a4872f3dfacfa47095c1044cabc5eb2a240696 diff --git a/urcu-bp.c b/urcu-bp.c index 2b531a3..3b2062d 100644 --- a/urcu-bp.c +++ b/urcu-bp.c @@ -24,6 +24,7 @@ */ #define _GNU_SOURCE +#define _LGPL_SOURCE #include #include #include @@ -35,11 +36,15 @@ #include #include +#include "urcu/wfqueue.h" #include "urcu/map/urcu-bp.h" - #include "urcu/static/urcu-bp.h" +#include "urcu-pointer.h" + /* Do not #define _LGPL_SOURCE to ensure we can emit the wrapper symbols */ +#undef _LGPL_SOURCE #include "urcu-bp.h" +#define _LGPL_SOURCE #ifndef MAP_ANONYMOUS #define MAP_ANONYMOUS MAP_ANON @@ -56,7 +61,7 @@ */ void *mremap(void *old_address, size_t old_size, size_t new_size, int flags) { - void *new_arena; + void *new_address; assert(flags & MREMAP_MAYMOVE); assert(!(flags & MREMAP_FIXED)); @@ -78,6 +83,11 @@ void *mremap(void *old_address, size_t old_size, size_t new_size, int flags) #define RCU_SLEEP_DELAY 1000 #define ARENA_INIT_ALLOC 16 +/* + * Active attempts to check for reader Q.S. before calling sleep(). + */ +#define RCU_QS_ACTIVE_ATTEMPTS 100 + void __attribute__((destructor)) rcu_bp_exit(void); static pthread_mutex_t rcu_gp_lock = PTHREAD_MUTEX_INITIALIZER; @@ -295,7 +305,7 @@ static void add_thread(void) if (registry_arena.len < registry_arena.used + sizeof(struct rcu_reader)) resize_arena(®istry_arena, - max(registry_arena.len << 1, ARENA_INIT_ALLOC)); + caa_max(registry_arena.len << 1, ARENA_INIT_ALLOC)); /* * Find a free spot. */ @@ -364,9 +374,10 @@ end: assert(!ret); } -void rcu_bp_exit() +void rcu_bp_exit(void) { - munmap(registry_arena.p, registry_arena.len); + if (registry_arena.p) + munmap(registry_arena.p, registry_arena.len); } /* @@ -410,5 +421,7 @@ void rcu_bp_after_fork_child(void) assert(!ret); } +DEFINE_RCU_FLAVOR() + #include "urcu-call-rcu-impl.h" #include "urcu-defer-impl.h"