diff options
Diffstat (limited to 'thread-utils.c')
| -rw-r--r-- | thread-utils.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/thread-utils.c b/thread-utils.c index a2135e0743..5329845691 100644 --- a/thread-utils.c +++ b/thread-utils.c @@ -20,6 +20,9 @@ int online_cpus(void) { +#ifdef NO_PTHREADS + return 1; +#else #ifdef _SC_NPROCESSORS_ONLN long ncpus; #endif @@ -59,10 +62,12 @@ int online_cpus(void) #endif return 1; +#endif } int init_recursive_mutex(pthread_mutex_t *m) { +#ifndef NO_PTHREADS pthread_mutexattr_t a; int ret; @@ -74,4 +79,47 @@ int init_recursive_mutex(pthread_mutex_t *m) pthread_mutexattr_destroy(&a); } return ret; +#else + return 0; +#endif +} + +#ifdef NO_PTHREADS +int dummy_pthread_create(pthread_t *pthread, const void *attr, + void *(*fn)(void *), void *data) +{ + /* + * Do nothing. + * + * The main purpose of this function is to break compiler's + * flow analysis and avoid -Wunused-variable false warnings. + */ + return ENOSYS; +} + +int dummy_pthread_init(void *data) +{ + /* + * Do nothing. + * + * The main purpose of this function is to break compiler's + * flow analysis or it may realize that functions like + * pthread_mutex_init() is no-op, which means the (static) + * variable is not used/initialized at all and trigger + * -Wunused-variable + */ + return ENOSYS; } + +int dummy_pthread_join(pthread_t pthread, void **retval) +{ + /* + * Do nothing. + * + * The main purpose of this function is to break compiler's + * flow analysis and avoid -Wunused-variable false warnings. + */ + return ENOSYS; +} + +#endif |