GLISSYNC(3G) OpenGL 3.3 GLISSYNC(3G)NAME
glIsSync - determine if a name corresponds to a sync object
C SPECIFICATION
GLboolean glIsSync(GLsync sync);
PARAMETERS
sync
Specifies a value that may be the name of a sync object.
DESCRIPTION
glIsSync returns GL_TRUE if sync is currently the name of a sync object. If sync is not the name of a sync object, or if an error occurs,
glIsSync returns GL_FALSE. Note that zero is not the name of a sync object.
NOTES
glIsSync is available only if the GL version is 3.2 or greater.
SEE ALSO
glFenceSync(), glWaitSync(), glClientWaitSync(), glDeleteSync()
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 GLISSYNC(3G)
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GLCLIENTWAITSYNC(3G) OpenGL 3.3 GLCLIENTWAITSYNC(3G)NAME
glClientWaitSync - block and wait for a sync object to become signaled
C SPECIFICATION
GLenum glClientWaitSync(GLsync sync, GLbitfield flags, GLuint64 timeout);
PARAMETERS
sync
The sync object whose status to wait on.
flags
A bitfield controlling the command flushing behavior. flags may be GL_SYNC_FLUSH_COMMANDS_BIT.
timeout
The timeout, specified in nanoseconds, for which the implementation should wait for sync to become signaled.
DESCRIPTION
glClientWaitSync causes the client to block and wait for the sync object specified by sync to become signaled. If sync is signaled when
glClientWaitSync is called, glClientWaitSync returns immediately, otherwise it will block and wait for up to timeout nanoseconds for sync
to become signaled.
The return value is one of four status values:
o GL_ALREADY_SIGNALED indicates that sync was signaled at the time that glClientWaitSync was called.
o GL_TIMEOUT_EXPIRED indicates that at least timeout nanoseconds passed and sync did not become signaled.
o GL_CONDITION_SATISFIED indicates that sync was signaled before the timeout expired.
o GL_WAIT_FAILED indicates that an error occurred. Additionally, an OpenGL error will be generated.
NOTES
glClientWaitSync is available only if the GL version is 3.2 or greater.
ERRORS
GL_INVALID_VALUE is generated if sync is not the name of an existing sync object.
GL_INVALID_VALUE is generated if flags contains any unsupported flag.
SEE ALSO
glFenceSync(), glIsSync() glWaitSync()
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 GLCLIENTWAITSYNC(3G)
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