GLWAITSYNC(3G) OpenGL 3.3 GLWAITSYNC(3G)NAME
glWaitSync - instruct the GL server to block until the specified sync object becomes signaled
C SPECIFICATION
void glWaitSync(GLsync sync, GLbitfield flags, GLuint64 timeout);
PARAMETERS
sync
Specifies the sync object whose status to wait on.
flags
A bitfield controlling the command flushing behavior. flags may be zero.
timeout
Specifies the timeout that the server should wait before continuing. timeout must be GL_TIMEOUT_IGNORED.
DESCRIPTION
glWaitSync causes the GL server to block and wait until sync becomes signaled. sync is the name of an existing sync object upon which to
wait. flags and timeout are currently not used and must be set to zero and the special value GL_TIMEOUT_IGNORED, respectively[1].
glWaitSync will always wait no longer than an implementation-dependent timeout. The duration of this timeout in nanoseconds may be queried
by calling glGet() with the parameter GL_MAX_SERVER_WAIT_TIMEOUT. There is currently no way to determine whether glWaitSync unblocked
because the timeout expired or because the sync object being waited on was signaled.
If an error occurs, glWaitSync does not cause the GL server to block.
NOTES
glWaitSync is available only if the GL version is 3.2 or higher.
ERRORS
GL_INVALID_OPERATION is generated if sync is not the name of a sync object.
GL_INVALID_VALUE is generated if flags is not zero.
GL_INVALID_VALUE is generated if timeout is not GL_TIMEOUT_IGNORED.
SEE ALSO
glFenceSync(), glClientWaitSync()
COPYRIGHT
Copyright (C) 2010 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication
License, v 1.0, 8 June 1999. http://opencontent.org/openpub/.
NOTES
1. flags and timeout are placeholders for anticipated future extensions of sync object capabilities. They must have these reserved values
in order that existing code calling glWaitSync operate properly in the presence of such extensions.
OpenGL 3.3 03/08/2011 GLWAITSYNC(3G)
Check Out this Related Man Page
GLDELETESYNC(3G) OpenGL 3.3 GLDELETESYNC(3G)NAME
glDeleteSync - delete a sync object
C SPECIFICATION
void glDeleteSync(GLsync sync);
PARAMETERS
sync
The sync object to be deleted.
DESCRIPTION
glDeleteSync deletes the sync object specified by sync. If the fence command corresponding to the specified sync object has completed, or
if no glWaitSync() or glClientWaitSync() commands are blocking on sync, the object is deleted immediately. Otherwise, sync is flagged for
deletion and will be deleted when it is no longer associated with any fence command and is no longer blocking any glWaitSync() or
glClientWaitSync() command. In either case, after glDeleteSync returns, the name sync is invalid and can no longer be used to refer to the
sync object.
glDeleteSync will silently ignore a sync value of zero.
NOTES
glSync is only supported if the GL version is 3.2 or greater, or if the ARB_sync extension is supported.
ERRORS
GL_INVALID_VALUE is generated if sync is neither zero or the name of a sync object.
SEE ALSO
glFenceSync(), glWaitSync(), glClientWaitSync()
COPYRIGHT
Copyright (C) 2010 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication
License, v 1.0, 8 June 1999. http://opencontent.org/openpub/.
OpenGL 3.3 03/08/2011 GLDELETESYNC(3G)
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