diff options
Diffstat (limited to 'mysys/my_pthread.c')
| -rw-r--r-- | mysys/my_pthread.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/mysys/my_pthread.c b/mysys/my_pthread.c index 696b62f8b0e..e4e0eff95e6 100644 --- a/mysys/my_pthread.c +++ b/mysys/my_pthread.c @@ -409,7 +409,7 @@ int my_pthread_cond_init(pthread_cond_t *mp, const pthread_condattr_t *attr) /* Change functions on HP to work according to POSIX */ -#ifdef HAVE_BROKEN_PTHREAD_COND_TIMEDWAIT +#if defined(HPUX) || defined(HAVE_BROKEN_PTHREAD_COND_TIMEDWAIT) #undef pthread_cond_timedwait int my_pthread_cond_timedwait(pthread_cond_t *cond, @@ -426,7 +426,26 @@ int my_pthread_cond_timedwait(pthread_cond_t *cond, error= ETIMEDOUT; return error; } -#endif /* HAVE_BROKEN_PTHREAD_COND_TIMEDWAIT */ +#endif + + +#ifdef HPUX +/* + In HP-UX-10.20 and other old Posix 1003.4a Draft 4 implementations + pthread_mutex_trylock returns 1 on success, not 0 like + pthread_mutex_lock +*/ + +int my_pthread_mutex_trylock(pthread_mutex_t *mutex) +{ + int error=pthread_mutex_trylock(mutex); + if (error == 1) /* Safety if the lib is fixed */ + return 0; /* Mutex was locked */ + if (error == -1) /* Safety if the lib is fixed */ + error=errno; + return error; +} +#endif /* Some help functions */ |