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Showing content from https://www.khronos.org/opengles/sdk/docs/man3/html/glWaitSync.xhtml below:

OpenGL ES 3 Reference Pages

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 must 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. 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.

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.

API Version Support OpenGL ES API Version Function Name 2.0 3.0 glWaitSync - ✔ Copyright

Copyright © 2010-2014 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. https://opencontent.org/openpub/.


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