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author | unknown <msvensson@neptunus.(none)> | 2005-04-27 12:56:01 +0200 |
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committer | unknown <msvensson@neptunus.(none)> | 2005-04-27 12:56:01 +0200 |
commit | 0e29519b2b4f06f2e37b59c7e9359331c15e83a4 (patch) | |
tree | 922f8cbd12ff26fed829ed3fbe11e44e2ea2923f /mysys | |
parent | 49b448ae5a91ed9c0dde57ecd1de724bf517d904 (diff) | |
parent | 78f89a729a962f7a88869a3d5e50ca493391b2a4 (diff) | |
download | mariadb-git-0e29519b2b4f06f2e37b59c7e9359331c15e83a4.tar.gz |
Merge from 4.1 to 5.0
client/mysql.cc:
Auto merged
include/my_pthread.h:
Auto merged
ndb/src/ndbapi/ndberror.c:
Auto merged
sql/examples/ha_archive.cc:
Auto merged
sql/examples/ha_archive.h:
Auto merged
BUILD/SETUP.sh:
Manual merge of conflicts
-DBIG_TABLES removed set by configure using --with-big-tables
configure.in:
manual merge
mysql-test/r/archive.result:
Manual merge
mysql-test/t/archive.test:
Manual merge
Diffstat (limited to 'mysys')
-rw-r--r-- | mysys/my_thr_init.c | 28 |
1 files changed, 12 insertions, 16 deletions
diff --git a/mysys/my_thr_init.c b/mysys/my_thr_init.c index 36b37f68b46..93ba34ea5b4 100644 --- a/mysys/my_thr_init.c +++ b/mysys/my_thr_init.c @@ -40,9 +40,6 @@ pthread_mutex_t LOCK_gethostbyname_r; #ifdef PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP pthread_mutexattr_t my_fast_mutexattr; #endif -#ifdef PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP -pthread_mutexattr_t my_errchk_mutexattr; -#endif /* initialize thread environment @@ -62,19 +59,21 @@ my_bool my_thread_global_init(void) fprintf(stderr,"Can't initialize threads: error %d\n",errno); return 1; } + #ifdef PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP - pthread_mutexattr_init(&my_fast_mutexattr); /* - Note that the following statement may give a compiler warning under - some configurations, but there isn't anything we can do about this as - this is a bug in the header files for the thread implementation + Set mutex type to "fast" a.k.a "adaptive" + + The mutex kind determines what happens if a thread attempts to lock + a mutex it already owns with pthread_mutex_lock(3). If the mutex + is of the ``fast'' kind, pthread_mutex_lock(3) simply suspends + the calling thread forever. If the mutex is of the ``error checking'' + kind, pthread_mutex_lock(3) returns immediately with the error + code EDEADLK. */ - pthread_mutexattr_setkind_np(&my_fast_mutexattr,PTHREAD_MUTEX_ADAPTIVE_NP); -#endif -#ifdef PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP - pthread_mutexattr_init(&my_errchk_mutexattr); - pthread_mutexattr_setkind_np(&my_errchk_mutexattr, - PTHREAD_MUTEX_ERRORCHECK_NP); + pthread_mutexattr_init(&my_fast_mutexattr); + pthread_mutexattr_settype(&my_fast_mutexattr, + PTHREAD_MUTEX_ADAPTIVE_NP); #endif pthread_mutex_init(&THR_LOCK_malloc,MY_MUTEX_INIT_FAST); @@ -109,9 +108,6 @@ void my_thread_global_end(void) #ifdef PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP pthread_mutexattr_destroy(&my_fast_mutexattr); #endif -#ifdef PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP - pthread_mutexattr_destroy(&my_errchk_mutexattr); -#endif pthread_mutex_destroy(&THR_LOCK_malloc); pthread_mutex_destroy(&THR_LOCK_open); pthread_mutex_destroy(&THR_LOCK_lock); |