From 7523c7c4d75652f67cd31cb123e1268790394c8b Mon Sep 17 00:00:00 2001 From: rpj Date: Fri, 6 May 2005 07:27:10 +0000 Subject: '' --- manual/pthread_timechange_handler_np.html | 76 +++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 manual/pthread_timechange_handler_np.html (limited to 'manual/pthread_timechange_handler_np.html') diff --git a/manual/pthread_timechange_handler_np.html b/manual/pthread_timechange_handler_np.html new file mode 100644 index 0000000..54226da --- /dev/null +++ b/manual/pthread_timechange_handler_np.html @@ -0,0 +1,76 @@ + + + + + PTHREAD_TIMECHANGE_HANDLER_NP manual page + + + + + + + +

POSIX Threads for Windows – REFERENCE - Pthreads-w32

+

Reference Index

+

Table of Contents

+

Name

+

pthread_timechange_handler_np – +alert timed waiting condition variables to system time changes.

+

Synopsis

+

#include <pthread.h> +

+

void * pthread_timechange_handler_np(void * dummy);

+

Description

+

To improve tolerance against operator or time service initiated +system clock changes.

+

pthread_timechange_handler_np can be called by an +application when it receives a WM_TIMECHANGE message from the system. +At present it broadcasts all condition variables so that waiting +threads can wake up and re-evaluate their conditions and restart +their timed waits if required.

+

pthread_timechange_handler_np has the same return type and +argument type as a thread routine so that it may be called directly +through pthread_create(), i.e. as a separate thread. If run as a +thread, the return code must be retrieved through pthread_join().

+

Although the dummy parameter is required it is not used and +any value including NULL can be given.

+

Cancellation

+

None.

+

Return Value

+

pthread_timechange_handler_np returns 0 on success, or an +error code.

+

Errors

+

The pthread_timechange_handler_np function returns the +following error code on error: +

+
+
+
EAGAIN +
+
+

+To indicate that not all condition variables were signalled for some +reason.

+

Author

+

Ross Johnson for use with Pthreads-w32.

+
+

Table of Contents

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