rwlock allows for parallel execution of get_cu_from_native_addr().
Signed-off-by: Tomek Grabiec <[email protected]>
---
jit/cu-mapping.c | 14 +++++++-------
1 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/jit/cu-mapping.c b/jit/cu-mapping.c
index 7c13e13..5e59ee3 100644
--- a/jit/cu-mapping.c
+++ b/jit/cu-mapping.c
@@ -41,7 +41,7 @@
* is fast.
*/
struct radix_tree *cu_map;
-pthread_mutex_t cu_map_mutex = PTHREAD_MUTEX_INITIALIZER;
+pthread_rwlock_t cu_map_rwlock = PTHREAD_RWLOCK_INITIALIZER;
#define BITS_PER_LEVEL 6
@@ -69,18 +69,18 @@ int add_cu_mapping(struct compilation_unit *cu)
{
int result;
- pthread_mutex_lock(&cu_map_mutex);
+ pthread_rwlock_wrlock(&cu_map_rwlock);
result = radix_tree_insert(cu_map, cu_key(cu), cu);
- pthread_mutex_unlock(&cu_map_mutex);
+ pthread_rwlock_unlock(&cu_map_rwlock);
return result;
}
void remove_cu_mapping(struct compilation_unit *cu)
{
- pthread_mutex_lock(&cu_map_mutex);
+ pthread_rwlock_wrlock(&cu_map_rwlock);
radix_tree_remove(cu_map, cu_key(cu));
- pthread_mutex_unlock(&cu_map_mutex);
+ pthread_rwlock_unlock(&cu_map_rwlock);
}
struct compilation_unit *get_cu_from_native_addr(unsigned long addr)
@@ -88,9 +88,9 @@ struct compilation_unit *get_cu_from_native_addr(unsigned
long addr)
struct compilation_unit *cu;
unsigned long method_addr;
- pthread_mutex_lock(&cu_map_mutex);
+ pthread_rwlock_rdlock(&cu_map_rwlock);
cu = radix_tree_lookup_prev(cu_map, addr_key(addr));
- pthread_mutex_unlock(&cu_map_mutex);
+ pthread_rwlock_unlock(&cu_map_rwlock);
if (cu == NULL)
return NULL;
--
1.6.0.6
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