1GL_ARB_sync
2http://www.opengl.org/registry/specs/ARB/sync.txt
3GL_ARB_sync
4	GL_SYNC_FLUSH_COMMANDS_BIT 0x00000001
5	GL_MAX_SERVER_WAIT_TIMEOUT 0x9111
6	GL_OBJECT_TYPE 0x9112
7	GL_SYNC_CONDITION 0x9113
8	GL_SYNC_STATUS 0x9114
9	GL_SYNC_FLAGS 0x9115
10	GL_SYNC_FENCE 0x9116
11	GL_SYNC_GPU_COMMANDS_COMPLETE 0x9117
12	GL_UNSIGNALED 0x9118
13	GL_SIGNALED 0x9119
14	GL_ALREADY_SIGNALED 0x911A
15	GL_TIMEOUT_EXPIRED 0x911B
16	GL_CONDITION_SATISFIED 0x911C
17	GL_WAIT_FAILED 0x911D
18	GL_TIMEOUT_IGNORED 0xFFFFFFFFFFFFFFFF
19	GLenum glClientWaitSync (GLsync GLsync,GLbitfield flags,GLuint64 timeout)
20	void glDeleteSync (GLsync GLsync)
21	GLsync glFenceSync (GLenum condition,GLbitfield flags)
22	void glGetInteger64v (GLenum pname, GLint64* params)
23	void glGetSynciv (GLsync GLsync,GLenum pname,GLsizei bufSize,GLsizei* length, GLint *values)
24	GLboolean glIsSync (GLsync GLsync)
25	void glWaitSync (GLsync GLsync,GLbitfield flags,GLuint64 timeout)
26