diff options
Diffstat (limited to 'README')
| -rw-r--r-- | README | 42 |
1 files changed, 39 insertions, 3 deletions
@@ -52,15 +52,18 @@ The GNU library archive file name has changed to: Known bugs in this snapshot
---------------------------
-1. Running the test "join1.c" with the library built with Mingw32
+1. Asynchronous cancelation only works on Intel X86 machines.
+
+2. Running the test "join1.c" with the library built with Mingw32
and the GNUmakefile included, the test fails with a segmentation (invalid
page access) exception. The fault appears to be in the assembler code
emmitted by the compiler [to handle exception contexts] at the
end of the try block in ptw32_threadStart().
-2. There are problems using the libpthreadw32.a stub archive derived
+3. There are problems using the libpthreadw32.a stub archive derived
from either of pthreadVSE.dll or pthreadVCE.dll. The cleanup1.c test
-fails.
+fails. This is now an expected result of having different EH and cleanup
+handler schemes in the library and application.
Caveats
@@ -85,6 +88,39 @@ Otherwise neither pthreads cancelation nor pthread_exit() will work reliably.
+Non-portable functions included in the library
+----------------------------------------------
+
+void
+pthread_mutexattr_setforcecs_np(pthread_mutexattr_t *attr,
+ int forcecs);
+
+ Allows an application to force the library to use
+ critical sections rather than win32 mutexes as
+ the basis for any mutex that uses "attr".
+ Critical sections are significantly faster than
+ mutexes.
+
+ Values for "forcecs" are:
+ PTHREAD_MUTEX_AUTO_CS_NP
+ - allow the library to decide based on
+ availability of tryEnterCriticalSection()
+ PTHREAD_MUTEX_FORCE_CS_NP
+ - force use of critical sections, but you'd
+ better not try to use pthread_mutex_trylock()
+ on that mutex if you want your application
+ to work on all versions of Windows.
+
+HANDLE
+pthread_getw32threadhandle_np(pthread_t thread);
+
+ Returns the win32 thread handle that the POSIX
+ thread "thread" is running as.
+
+ Applications can use the win32 handle to set
+ win32 specific attributes of the thread.
+
+
Building under VC++ using either C++ EH or Structured EH
--------------------------------------------------------
|