From 97cb4b33462735b93ac9522df6bf4d43d0b7fe71 Mon Sep 17 00:00:00 2001 From: bje Date: Sun, 4 Oct 1998 18:32:15 +0000 Subject: 1998-10-05 Ben Elliston * global.c (PTHREAD_MUTEX_INITIALIZER): Move to pthread.h. * pthread.h (PTHREAD_MUTEX_INITIALIZER): Define. (pthread_mutex_t): Reimplement as a struct containing a valid flag. If the flag is ever down upon entry to a mutex operation, we call pthread_mutex_create() to initialise the object. This fixes the problem of how to handle statically initialised objects that can't call InitializeCriticalSection() due to their context. * mutex.c (pthread_mutex_init): Set valid flag. (pthread_mutex_destroy): Clear valid flag. (pthread_mutex_lock): Check and handle the valid flag. (pthread_mutex_unlock): Likewise. (pthread_mutex_trylock): Likewise. * tests/mutex3.c: New file; test for the static initialisation macro. Passes. --- tests/mutex3.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) create mode 100644 tests/mutex3.c (limited to 'tests/mutex3.c') diff --git a/tests/mutex3.c b/tests/mutex3.c new file mode 100644 index 0000000..2bb6106 --- /dev/null +++ b/tests/mutex3.c @@ -0,0 +1,12 @@ +#include + +pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; + +int +main() +{ + pthread_mutex_lock(&mutex); + /* do stuff */ + pthread_mutex_unlock(&mutex); + return 0; +} -- cgit v1.2.3