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author | unknown <guilhem@gbichot3.local> | 2007-02-28 17:50:51 +0100 |
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committer | unknown <guilhem@gbichot3.local> | 2007-02-28 17:50:51 +0100 |
commit | ea57b3d4a066a5507a7e322b53e3acab24a2855e (patch) | |
tree | a0703039f00da454a2a91c8b14835d45a6146209 /include/atomic/rwlock.h | |
parent | ae72e394502e13b854b6e9bb00889fa6b69a7ed9 (diff) | |
parent | fdf847fb62a0fcdf0edf25d6c8654b19eaa9a9ad (diff) | |
download | mariadb-git-ea57b3d4a066a5507a7e322b53e3acab24a2855e.tar.gz |
Merge gbichot3.local:/home/mysql_src/mysql-5.1-for-maria
into gbichot3.local:/home/mysql_src/mysql-maria
BitKeeper/etc/ignore:
auto-union
BUILD/SETUP.sh:
Auto merged
client/mysqldump.c:
Auto merged
config/ac-macros/plugins.m4:
Auto merged
configure.in:
Auto merged
include/Makefile.am:
Auto merged
include/atomic/nolock.h:
Auto merged
include/atomic/rwlock.h:
Auto merged
include/atomic/x86-gcc.h:
Auto merged
include/atomic/x86-msvc.h:
Auto merged
include/ft_global.h:
Auto merged
include/keycache.h:
Auto merged
include/m_string.h:
Auto merged
include/my_atomic.h:
Auto merged
include/my_base.h:
Auto merged
include/my_dbug.h:
Auto merged
include/my_global.h:
Auto merged
include/my_handler.h:
Auto merged
include/my_sys.h:
Auto merged
include/myisam.h:
Auto merged
libmysql/CMakeLists.txt:
Auto merged
libmysqld/Makefile.am:
Auto merged
mysql-test/mysql-test-run.pl:
Auto merged
mysql-test/r/events_logs_tests.result:
Auto merged
mysql-test/t/events_logs_tests.test:
Auto merged
mysys/Makefile.am:
Auto merged
mysys/array.c:
Auto merged
mysys/mf_keycache.c:
Auto merged
mysys/mf_keycaches.c:
Auto merged
mysys/my_atomic.c:
Auto merged
mysys/my_bit.c:
Auto merged
mysys/my_bitmap.c:
Auto merged
mysys/my_create.c:
Auto merged
mysys/my_delete.c:
Auto merged
mysys/my_getsystime.c:
Auto merged
mysys/my_handler.c:
Auto merged
mysys/my_init.c:
Auto merged
mysys/my_open.c:
Auto merged
mysys/my_pread.c:
Auto merged
mysys/my_rename.c:
Auto merged
mysys/my_symlink.c:
Auto merged
mysys/my_sync.c:
Auto merged
plugin/daemon_example/daemon_example.cc:
Auto merged
sql/Makefile.am:
Auto merged
sql/filesort.cc:
Auto merged
sql/gen_lex_hash.cc:
Auto merged
sql/ha_ndbcluster.cc:
Auto merged
sql/handler.h:
Auto merged
sql/item_func.cc:
Auto merged
sql/item_func.h:
Auto merged
sql/log.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/set_var.h:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_sort.h:
Auto merged
sql/sql_test.cc:
Auto merged
sql/uniques.cc:
Auto merged
sql/unireg.cc:
Auto merged
storage/Makefile.am:
Auto merged
storage/csv/ha_tina.cc:
Auto merged
storage/myisam/Makefile.am:
Auto merged
storage/myisam/ft_boolean_search.c:
Auto merged
storage/myisam/ft_nlq_search.c:
Auto merged
storage/myisam/ft_parser.c:
Auto merged
storage/myisam/ft_static.c:
Auto merged
storage/myisam/ft_stopwords.c:
Auto merged
storage/myisam/ft_update.c:
Auto merged
storage/myisam/fulltext.h:
Auto merged
storage/myisam/ha_myisam.h:
Auto merged
storage/myisam/mi_check.c:
Auto merged
storage/myisam/mi_create.c:
Auto merged
storage/myisam/mi_delete.c:
Auto merged
storage/myisam/mi_delete_all.c:
Auto merged
storage/myisam/mi_dynrec.c:
Auto merged
storage/myisam/mi_key.c:
Auto merged
storage/myisam/mi_log.c:
Auto merged
storage/myisam/mi_open.c:
Auto merged
storage/myisam/mi_packrec.c:
Auto merged
storage/myisam/mi_range.c:
Auto merged
storage/myisam/mi_rsamepos.c:
Auto merged
storage/myisam/mi_search.c:
Auto merged
storage/myisam/mi_test1.c:
Auto merged
storage/myisam/mi_test2.c:
Auto merged
storage/myisam/mi_unique.c:
Auto merged
storage/myisam/mi_update.c:
Auto merged
storage/myisam/mi_write.c:
Auto merged
storage/myisam/myisamchk.c:
Auto merged
storage/myisam/myisamlog.c:
Auto merged
storage/myisam/myisampack.c:
Auto merged
storage/myisam/rt_index.c:
Auto merged
storage/myisam/sort.c:
Auto merged
storage/myisammrg/ha_myisammrg.h:
Auto merged
unittest/mytap/tap.c:
Auto merged
mysql-test/r/view.result:
manual merge
mysql-test/t/view.test:
manual merge
Makefile.am:
manual merge
mysql-test/t/disabled.def:
manual merge
sql/mysqld.cc:
manual merge
sql/set_var.cc:
manual merge
sql/udf_example.c:
manual merge
storage/myisam/ha_myisam.cc:
manual merge
storage/myisam/myisamdef.h:
manual merge
storage/ndb/src/mgmapi/mgmapi.cpp:
manual merge
unittest/Makefile.am:
manual merge
unittest/mysys/Makefile.am:
manual merge
unittest/mysys/my_atomic-t.c:
manual merge
Diffstat (limited to 'include/atomic/rwlock.h')
-rw-r--r-- | include/atomic/rwlock.h | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/include/atomic/rwlock.h b/include/atomic/rwlock.h index 18b77e93d80..cb41952b70c 100644 --- a/include/atomic/rwlock.h +++ b/include/atomic/rwlock.h @@ -13,7 +13,7 @@ along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ -typedef struct {pthread_rwlock_t rw;} my_atomic_rwlock_t; +typedef struct {pthread_mutex_t rw;} my_atomic_rwlock_t; #ifdef MY_ATOMIC_MODE_DUMMY /* @@ -31,17 +31,22 @@ typedef struct {pthread_rwlock_t rw;} my_atomic_rwlock_t; #define my_atomic_rwlock_wrunlock(name) #define MY_ATOMIC_MODE "dummy (non-atomic)" #else -#define my_atomic_rwlock_destroy(name) pthread_rwlock_destroy(& (name)->rw) -#define my_atomic_rwlock_init(name) pthread_rwlock_init(& (name)->rw, 0) -#define my_atomic_rwlock_rdlock(name) pthread_rwlock_rdlock(& (name)->rw) -#define my_atomic_rwlock_wrlock(name) pthread_rwlock_wrlock(& (name)->rw) -#define my_atomic_rwlock_rdunlock(name) pthread_rwlock_unlock(& (name)->rw) -#define my_atomic_rwlock_wrunlock(name) pthread_rwlock_unlock(& (name)->rw) -#define MY_ATOMIC_MODE "rwlocks" +/* + we're using read-write lock macros but map them to mutex locks, and they're + faster. Still, having semantically rich API we can change the + underlying implementation, if necessary. +*/ +#define my_atomic_rwlock_destroy(name) pthread_mutex_destroy(& (name)->rw) +#define my_atomic_rwlock_init(name) pthread_mutex_init(& (name)->rw, 0) +#define my_atomic_rwlock_rdlock(name) pthread_mutex_lock(& (name)->rw) +#define my_atomic_rwlock_wrlock(name) pthread_mutex_lock(& (name)->rw) +#define my_atomic_rwlock_rdunlock(name) pthread_mutex_unlock(& (name)->rw) +#define my_atomic_rwlock_wrunlock(name) pthread_mutex_unlock(& (name)->rw) +#define MY_ATOMIC_MODE "mutex" #endif #define make_atomic_add_body(S) int ## S sav; sav= *a; *a+= v; v=sav; -#define make_atomic_swap_body(S) int ## S sav; sav= *a; *a= v; v=sav; +#define make_atomic_fas_body(S) int ## S sav; sav= *a; *a= v; v=sav; #define make_atomic_cas_body(S) if ((ret= (*a == *cmp))) *a= set; else *cmp=*a; #define make_atomic_load_body(S) ret= *a; #define make_atomic_store_body(S) *a= v; |