drmHandleEvent - read and process pending DRM events
#include <xf86drm.h> int drmHandleEvent(int fd, drmEventContextPtr evctx);
DRMHANDLEEVENT(3) Direct Rendering Manager DRMHANDLEEVENT(3)
NAME
drmHandleEvent - read and process pending DRM events
SYNOPSIS
#include <xf86drm.h>
int drmHandleEvent(int fd, drmEventContextPtr evctx);
DESCRIPTION
drmHandleEvent processes outstanding DRM events on the DRM
file-descriptor passed as fd. This function should be called after the
DRM file-descriptor has polled readable; it will read the events and
use the passed-in evctx structure to call function pointers with the
parameters noted below:
typedef struct _drmEventContext {
int version;
void (*vblank_handler) (int fd,
unsigned int sequence,
unsigned int tv_sec,
unsigned int tv_usec,
void *user_data)
void (*page_flip_handler) (int fd,
unsigned int sequence,
unsigned int tv_sec,
unsigned int tv_usec,
void *user_data)
} drmEventContext, *drmEventContextPtr;
RETURN VALUE
drmHandleEvent returns 0 on success, or if there is no data to read
from the file-descriptor. Returns -1 if the read on the file-descriptor
fails or returns less than a full event record.
REPORTING BUGS
Bugs in this function should be reported to
https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=libdrm
under the "DRI" product, component "libdrm"
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+--------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+--------------------+
|Availability | x11/library/libdrm |
+---------------+--------------------+
|Stability | Volatile |
+---------------+--------------------+
SEE ALSO
drm(7), drm-kms(7), drmModePageFlip(3), drmWaitVBlank(3)
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from
https://dri.freedesktop.org/libdrm/libdrm-2.4.100.tar.bz2.
Further information about this software can be found on the open source
community website at https://dri.freedesktop.org/.
libdrm September 2012 DRMHANDLEEVENT(3)