* include/pthread.h (PTHREAD_COND_INITIALIZER): Define.

* thread.cc (__pthread_cond_destroy): Add support for
PTHREAD_COND_INITIALIZER.
(__pthread_cond_init): Ditto.
(__pthread_cond_broadcast): Ditto.
(__pthread_cond_signal): Ditto.
(__pthread_cond_dowait): Ditto.
(__pthread_mutex_init): Handle PTHREAD_MUTEX_INITIALIZER correctly,
don't return error when it's passed as parameter.
* winsup.h (check_null_invalid_struct): Call correct function.

4 files changed, 26 insertions, 4 deletions

diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 9c5fa54..055a52e 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,16 @@
+2001-11-15  Egor Duda  <deo@logos-m.ru>
+
+	* include/pthread.h (PTHREAD_COND_INITIALIZER): Define.
+	* thread.cc (__pthread_cond_destroy): Add support for
+	PTHREAD_COND_INITIALIZER.
+	(__pthread_cond_init): Ditto.
+	(__pthread_cond_broadcast): Ditto.
+	(__pthread_cond_signal): Ditto.
+	(__pthread_cond_dowait): Ditto.
+	(__pthread_mutex_init): Handle PTHREAD_MUTEX_INITIALIZER correctly,
+	don't return error when it's passed as parameter.
+	* winsup.h (check_null_invalid_struct): Call correct function.
+
 2001-11-14  Christopher Faylor  <cgf@redhat.com>
 
 	* exceptions.cc: Add stdlib.h include for alloca declaration.
diff --git a/winsup/cygwin/include/pthread.h b/winsup/cygwin/include/pthread.h
index 3c51cf1..102ba65 100644
--- a/winsup/cygwin/include/pthread.h
+++ b/winsup/cygwin/include/pthread.h
@@ -43,7 +43,8 @@ extern "C"
 #define PTHREAD_CANCEL_DEFERRED 0
 #define PTHREAD_CANCEL_DISABLE 1
 #define PTHREAD_CANCELED
-#define PTHREAD_COND_INITIALIZER
+/* this should be a value that can never be a valid address */
+#define PTHREAD_COND_INITIALIZER (void *)21
 #define PTHREAD_CREATE_DETACHED 1
 /* the default : joinable */
 #define PTHREAD_CREATE_JOINABLE 0
diff --git a/winsup/cygwin/thread.cc b/winsup/cygwin/thread.cc
index 87e926d..4b88679 100644
--- a/winsup/cygwin/thread.cc
+++ b/winsup/cygwin/thread.cc
@@ -1676,6 +1676,8 @@ __pthread_getspecific (pthread_key_t key)
 int
 __pthread_cond_destroy (pthread_cond_t *cond)
 {
+  if (check_valid_pointer (cond) && (*cond == PTHREAD_COND_INITIALIZER))
+    return 0;
   if (verifyable_object_isvalid (cond, PTHREAD_COND_MAGIC) != VALID_OBJECT)
     return EINVAL;
 
@@ -1695,7 +1697,7 @@ __pthread_cond_init (pthread_cond_t *cond, const pthread_condattr_t *attr)
   if (attr && verifyable_object_isvalid (attr, PTHREAD_CONDATTR_MAGIC) != VALID_OBJECT)
     return EINVAL;
 
-  if (verifyable_object_isvalid (cond, PTHREAD_COND_MAGIC) != INVALID_OBJECT)
+  if (verifyable_object_isvalid (cond, PTHREAD_COND_MAGIC, PTHREAD_COND_INITIALIZER) == VALID_OBJECT)
     return EBUSY;
 
   *cond = new pthread_cond (attr ? (*attr) : NULL);
@@ -1713,6 +1715,8 @@ __pthread_cond_init (pthread_cond_t *cond, const pthread_condattr_t *attr)
 int
 __pthread_cond_broadcast (pthread_cond_t *cond)
 {
+  if (*cond == PTHREAD_COND_INITIALIZER)
+    __pthread_cond_init (cond, NULL);
   if (verifyable_object_isvalid (cond, PTHREAD_COND_MAGIC) != VALID_OBJECT)
     return EINVAL;
 
@@ -1724,6 +1728,8 @@ __pthread_cond_broadcast (pthread_cond_t *cond)
 int
 __pthread_cond_signal (pthread_cond_t *cond)
 {
+  if (*cond == PTHREAD_COND_INITIALIZER)
+    __pthread_cond_init (cond, NULL);
   if (verifyable_object_isvalid (cond, PTHREAD_COND_MAGIC) != VALID_OBJECT)
     return EINVAL;
 
@@ -1743,6 +1749,8 @@ __pthread_cond_dowait (pthread_cond_t *cond, pthread_mutex_t *mutex,
   if (*mutex == PTHREAD_MUTEX_INITIALIZER)
     __pthread_mutex_init (mutex, NULL);
   themutex = mutex;
+  if (*cond == PTHREAD_COND_INITIALIZER)
+    __pthread_cond_init (cond, NULL);
 
   if (verifyable_object_isvalid (themutex, PTHREAD_MUTEX_MAGIC) != VALID_OBJECT)
     return EINVAL;
@@ -1920,7 +1928,7 @@ __pthread_mutex_init (pthread_mutex_t *mutex,
   if (attr && verifyable_object_isvalid (attr, PTHREAD_MUTEXATTR_MAGIC) != VALID_OBJECT || check_valid_pointer (mutex))
     return EINVAL;
 
-  if (verifyable_object_isvalid (mutex, PTHREAD_MUTEX_MAGIC, PTHREAD_MUTEX_INITIALIZER) != INVALID_OBJECT)
+  if (verifyable_object_isvalid (mutex, PTHREAD_MUTEX_MAGIC, PTHREAD_MUTEX_INITIALIZER) == VALID_OBJECT)
     return EBUSY;
 
   *mutex = new pthread_mutex (attr ? (*attr) : NULL);
diff --git a/winsup/cygwin/winsup.h b/winsup/cygwin/winsup.h
index fadff2e..7105fb7 100644
--- a/winsup/cygwin/winsup.h
+++ b/winsup/cygwin/winsup.h
@@ -195,7 +195,7 @@ int __stdcall __check_null_invalid_struct_errno (const void *s, unsigned sz) __a
 int __stdcall __check_invalid_read_ptr_errno (const void *s, unsigned sz) __attribute__ ((regparm(2)));
 
 #define check_null_invalid_struct(s) \
-  __check_null_invalid ((s), sizeof (*(s)))
+  __check_null_invalid_struct ((s), sizeof (*(s)))
 #define check_null_invalid_struct_errno(s) \
   __check_null_invalid_struct_errno ((s), sizeof (*(s)))