05-07-2008
There is also electric fence which can find buffer overruns for you.
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LEARN ABOUT MOJAVE
glfencesync
GLFENCESYNC(3G) OpenGL 3.3 GLFENCESYNC(3G)
NAME
glFenceSync - create a new sync object and insert it into the GL command stream
C SPECIFICATION
GLsync glFenceSync(GLenum condition, GLbitfield flags);
PARAMETERS
condition
Specifies the condition that must be met to set the sync object's state to signaled. condition must be GL_SYNC_GPU_COMMANDS_COMPLETE.
flags
Specifies a bitwise combination of flags controlling the behavior of the sync object. No flags are presently defined for this operation
and flags must be zero.[1]
DESCRIPTION
glFenceSync creates a new fence sync object, inserts a fence command into the GL command stream and associates it with that sync object,
and returns a non-zero name corresponding to the sync object.
When the specified condition of the sync object is satisfied by the fence command, the sync object is signaled by the GL, causing any
glWaitSync(), glClientWaitSync() commands blocking in sync to unblock. No other state is affected by glFenceSync or by the execution of the
associated fence command.
condition must be GL_SYNC_GPU_COMMANDS_COMPLETE. This condition is satisfied by completion of the fence command corresponding to the sync
object and all preceding commands in the same command stream. The sync object will not be signaled until all effects from these commands on
GL client and server state and the framebuffer are fully realized. Note that completion of the fence command occurs once the state of the
corresponding sync object has been changed, but commands waiting on that sync object may not be unblocked until after the fence command
completes.
NOTES
glFenceSync is only supported if the GL version is 3.2 or greater, or if
the ARB_sync extension is supported.
.SH "ERRORS"
GL_INVALID_ENUM is generated if condition is not GL_SYNC_GPU_COMMANDS_COMPLETE.
GL_INVALID_VALUE is generated if flags is not zero.
Additionally, if glFenceSync fails, it will return zero.
SEE ALSO
glDeleteSync(), glGetSync(), 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/.
NOTES
1.
flags is a placeholder for anticipated future extensions of fence sync object capabilities.
OpenGL 3.3 03/08/2011 GLFENCESYNC(3G)