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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:

       •   GL_ALREADY_SIGNALED indicates that sync was signaled at the time that glClientWaitSync
           was called.

       •   GL_TIMEOUT_EXPIRED indicates that at least timeout nanoseconds passed and sync did not
           become signaled.

       •   GL_CONDITION_SATISFIED indicates that sync was signaled before the timeout expired.

       •   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.

VERSION SUPPORT

       ┌─────────────────┬───────────────────────────────────────────────────────────────────────┐
       │                 │                OpenGL Version                                         │
       ├─────────────────┼─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┤
       │Function2.02.13.03.13.23.34.04.14.24.34.44.5 │
       │/                │     │     │     │     │     │     │     │     │     │     │     │     │
       │Feature          │     │     │     │     │     │     │     │     │     │     │     │     │
       │Name             │     │     │     │     │     │     │     │     │     │     │     │     │
       ├─────────────────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┤
       │glClientWaitSync │  -  │  -  │  -  │  -  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │
       └─────────────────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┘

SEE ALSO

       glFenceSync(), glIsSync() 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.
       http://opencontent.org/openpub/.

COPYRIGHT

       Copyright © 2010-2014 Khronos Group

[FIXME: source]                             01/03/2018                       GLCLIENTWAITSYNC(3G)