PTREE_UNREGISTER_HANDLER(3PICLTREE) PICL Plug-In Library Functions


NAME


ptree_unregister_handler - unregister the event handler for the event

SYNOPSIS


cc [flag ...] file ... -lpicltree [library ...]
#include <picltree.h>

void ptree_register_handler(const char *ename,
void (*evt_handler)(const char *ename, const void *earg,
size_t size, void *cookie), void *cookie);


DESCRIPTION


The ptree_unregister_handler() function unregisters the event handler for
the specified event. The argument ename specifies the name of the PICL
event for which to unregister the handler. The argument evt_handler
specifies the event handler function. The argument cookie is the pointer
to the caller-specific data given at the time of registration of the
handler.


If the handler being unregistered is currently executing, then this
function will block until its completion. Because of this, locks acquired
by the handlers should not be held across the call to
ptree_unregister_handler() or a deadlock may result.


The ptree_unregister_handler() function must not be invoked from the
handler that is being unregistered.

RETURN VALUES


This function does not return a value.

ATTRIBUTES


See attributes(5) for descriptions of the following attributes:


+---------------+-----------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+-----------------+
|MT-Level | MT-Safe |
+---------------+-----------------+

SEE ALSO


ptree_register_handler(3PICLTREE), attributes(5)


August 1, 2000
PTREE_UNREGISTER_HANDLER(3PICLTREE)