From 7a31ef49c345dfb39de7cd6d43eeb29c34129495 Mon Sep 17 00:00:00 2001
From: rpj <rpj>
Date: Wed, 7 Feb 2001 08:45:46 +0000
Subject: Updates and minor corrections and changes.

---
 README.NONPORTABLE | 119 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 119 insertions(+)
 create mode 100644 README.NONPORTABLE

(limited to 'README.NONPORTABLE')

diff --git a/README.NONPORTABLE b/README.NONPORTABLE
new file mode 100644
index 0000000..7dfba7f
--- /dev/null
+++ b/README.NONPORTABLE
@@ -0,0 +1,119 @@
+Non-portable functions included in the library
+----------------------------------------------
+
+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.
+
+int
+pthread_delay_np (const struct timespec *interval);
+
+        This routine causes a thread to delay execution for a specific
+        period of time. This period ends at the current time plus the
+        specified interval. The routine will not return before the end
+        of the period is reached, but may return an arbitrary amount
+        of time after the period has gone by. This can be due to
+        system load, thread priorities, and system timer granularity.
+
+        Specifying an interval of zero (0) seconds and zero (0)
+        nanoseconds is allowed and can be used to force the thread
+        to give up the processor or to deliver a pending cancelation
+        request.
+
+        This routine is a cancelation point.
+
+        The timespec structure contains the following two fields:
+
+                tv_sec is an integer number of seconds.
+                tv_nsec is an integer number of nanoseconds. 
+
+        Return Values
+
+        If an error condition occurs, this routine returns an integer value
+        indicating the type of error. Possible return values are as follows:
+
+        0          Successful completion. 
+        [EINVAL]   The value specified by interval is invalid. 
+
+
+BOOL
+pthread_win32_process_attach_np (void);
+
+BOOL
+pthread_win32_process_detach_np (void);
+
+BOOL
+pthread_win32_thread_attach_np (void);
+
+BOOL
+pthread_win32_thread_detach_np (void);
+
+	These functions contain the code normally run via dllMain
+	when the library is used as a dll but which need to be
+	called explicitly by an application when the library
+	is statically linked.
+
+	You will need to call pthread_win32_process_attach_np() before
+	you can call any pthread routines when statically linking.
+	You should call pthread_win32_process_detach_np() before
+	exiting your application to clean up.
+
+	pthread_win32_thread_attach_np() is currently a no-op, but
+	pthread_win32_thread_detach_np() is needed to clean up
+	after Win32 threads that have called pthreads routines
+	have exited.
+
+	These functions invariably return TRUE except for
+	pthread_win32_process_attach_np() which will return FALSE
+	if pthreads-win32 initialisation fails.
+
+
+int
+pthreadCancelableWait (HANDLE waitHandle);
+
+int
+pthreadCancelableTimedWait (HANDLE waitHandle, DWORD timeout);
+
+	These two functions provide hooks into the pthread_cancel
+	mechanism that will allow you to wait on a Windows handle
+	and make it a cancellation point. Both functions block
+	until either the given w32 handle is signaled, or
+	pthread_cancel has been called. It is implemented using
+	WaitForMultipleObjects on 'waitHandle' and a manually
+	reset w32 event used to implement pthread_cancel.
+
+
+void
+pthread_mutexattr_setforcecs_np(pthread_mutexattr_t *attr,
+				int forcecs);
+
+        This function is no longer required as pthreads-win32
+        mutexes are now based entirely on Win32 critical
+        sections. Retained for backward compatibility.
+
+	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().
+		  The library determines this at runtime
+		  and will use critical sections whenever
+		  tryEnterCriticalSection() is available.
+	PTHREAD_MUTEX_FORCE_CS_NP
+		- force use of critical sections even if
+		  tryEnterCriticalSection() isn't provided
+		  by the system, but you'd better not try
+		  to use pthread_mutex_trylock() on any
+		  mutex that uses "attr" if you want your
+		  application to work on all versions of
+		  Windows.
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