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os: Add X_NOTIFY_ERROR value 

This provides a way to report errors on file descriptors that is
better defined than "any bits which are not READ or WRITE".

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
This commit is contained in:
Keith Packard 2016-05-29 15:06:36 -07:00 committed by Adam Jackson
parent e6636b4383
commit 0d294462a5
1 changed files with 4 additions and 3 deletions
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7
include/os.h
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@ -148,9 +148,10 @@ extern _X_EXPORT void CloseDownConnection(ClientPtr /*client */ );
typedef void (*NotifyFdProcPtr)(int fd, int ready, void *data);
#define X_NOTIFY_NONE 0
#define X_NOTIFY_READ 1
#define X_NOTIFY_WRITE 2
#define X_NOTIFY_NONE 0x0
#define X_NOTIFY_READ 0x1
#define X_NOTIFY_WRITE 0x2
#define X_NOTIFY_ERROR 0x4 /* don't need to select for, always reported */
extern _X_EXPORT Bool SetNotifyFd(int fd, NotifyFdProcPtr notify_fd, int mask, void *data);