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docs: fix virEventAddHandle return details

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In commit 6d41cb8, the interface for virEventAddHandleFunc was changed.
This patch updates the documentation for virEventAddHandle to reflect
the new significance of the return value. Also, both functions now
mention -1 for failure.
This commit is contained in:
Jonathan Lebon 2013-09-18 14:56:01 -04:00 committed by Eric Blake
parent e7f400a110
commit b8e4644d1a
2 changed files with 4 additions and 3 deletions
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4
include/libvirt/libvirt.h.in
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@ -3643,8 +3643,8 @@ typedef void (*virEventHandleCallback)(int watch, int fd, int events, void *opaq
* If 'ff' callbacks are invoked directly from the virEventRemoveHandleFunc
* they will likely deadlock in libvirt.
*
* Returns a handle watch number to be used for updating
* and unregistering for events
* Returns -1 if the file handle cannot be registered, otherwise a handle
* watch number to be used for updating and unregistering for events
*/
typedef int (*virEventAddHandleFunc)(int fd, int event,
virEventHandleCallback cb,

3
src/util/virevent.c
View File

@ -48,7 +48,8 @@ static virEventRemoveTimeoutFunc removeTimeoutImpl = NULL;
*
* Register a callback for monitoring file handle events.
*
* Returns -1 if the file handle cannot be registered, 0 upon success
* Returns -1 if the file handle cannot be registered, otherwise a handle
* watch number to be used for updating and unregistering for events
*/
int
virEventAddHandle(int fd,