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2002-09-30 Robert Collins <rbtcollins@hotmail.com>

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* pthread.cc (pthread_mutex_init): Use new pthread_mutex::init.
        * thread.cc: Change __pthread_mutex_init to pthread_mutex::init
        throughout.
        (MTinterface::Init): Initialise pthread_mutex support.
        (pthread_mutex::mutexInitializationLock): Instantiate.
        (pthread_mutex::initMutex): New method.
        (__pthread_cond_dowait): Don't dereference untrusted pointers.
        Use the new pthread_mutex::init method.
        (__pthread_condattr_init): Don't dereference untrusted pointers.
        (__pthread_mutex_init): Rename to pthread_mutex::init.
        Lock and release mutexInitializationLock to prevent races on
        mutex initialisation.
        * thread.h (pthread_mutex::initMutex): New method, initialise
        pthread_mutex supporting state on process initialisation.
        (pthread_mutex::init): Initialise a single mutex.
        (pthread_mutex::mutexInitializationLock): A win32 mutex for
        syncronising pthread mutex initialisation.
        (__pthread_mutex_init): Remove this.
This commit is contained in:
Robert Collins
2002-09-29 23:47:45 +00:00
parent b2c3ba8ad0
commit eb208df05a
4 changed files with 73 additions and 14 deletions
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6
winsup/cygwin/thread.h
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@@ -291,6 +291,9 @@ public:
static bool isGoodObject(pthread_mutex_t const *);
static bool isGoodInitializer(pthread_mutex_t const *);
static bool isGoodInitializerOrObject(pthread_mutex_t const *);
static void initMutex ();
static int init (pthread_mutex_t *, const pthread_mutexattr_t *);
CRITICAL_SECTION criticalsection;
HANDLE win32_obj_id;
LONG condwaits;
@@ -305,6 +308,8 @@ public:
pthread_mutex (pthread_mutexattr * = NULL);
pthread_mutex (pthread_mutex_t *, pthread_mutexattr *);
~pthread_mutex ();
private:
static HANDLE mutexInitializationLock;
};
class pthread:public verifyable_object
@@ -561,7 +566,6 @@ int __pthread_sigmask (int operation, const sigset_t * set,
int __pthread_equal (pthread_t * t1, pthread_t * t2);
/* Mutexes */
int __pthread_mutex_init (pthread_mutex_t *, const pthread_mutexattr_t *);
int __pthread_mutex_lock (pthread_mutex_t *);
int __pthread_mutex_trylock (pthread_mutex_t *);
int __pthread_mutex_unlock (pthread_mutex_t *);