diff options
author | Nicolai Hähnle <[email protected]> | 2017-10-22 17:38:31 +0200 |
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committer | Nicolai Hähnle <[email protected]> | 2017-11-09 11:37:39 +0100 |
commit | d1ff0826370cb1cfbcf741c8eb35caf1fddd7d52 (patch) | |
tree | 26f2e7b1c5f19cb9092fddfc1ce94797c7b9ce4a /include/GLES | |
parent | 574c59d4f935cccfa18f7054c660200f8be791ad (diff) |
u_queue: add a futex-based implementation of fences
Fences are now 4 bytes instead of 96 bytes (on my 64-bit system).
Signaling a fence is a single atomic operation in the fast case plus a
syscall in the slow case.
Testing if a fence is signaled is the same as before (a simple comparison),
but waiting on a fence is now no more expensive than just testing it in
the fast (already signaled) case.
v2:
- style fixes
- use p_atomic_xxx macros with the right barriers
Acked-by: Marek Olšák <[email protected]>
Diffstat (limited to 'include/GLES')
0 files changed, 0 insertions, 0 deletions