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authorKim Alvefur <zash@zash.se>2023-11-21 22:06:28 +0100
committerKim Alvefur <zash@zash.se>2023-11-21 22:06:28 +0100
commit07d2f9f2e8ccca52af4e297619e14c7524ef91a9 (patch)
tree2eb32fce7734c73f65922df2a2af022120a7ae6a /net
parentda38e2af42c1b646a7435c9ff69771f3e5781f1d (diff)
downloadprosody-07d2f9f2e8ccca52af4e297619e14c7524ef91a9.tar.gz
prosody-07d2f9f2e8ccca52af4e297619e14c7524ef91a9.zip
net.server_epoll: Avoid call to update socket watch flags when nothing changed
Should skip a syscall for each write when using epoll.
Diffstat (limited to 'net')
-rw-r--r--net/server_epoll.lua3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/server_epoll.lua b/net/server_epoll.lua
index e6b69258..fe60dc78 100644
--- a/net/server_epoll.lua
+++ b/net/server_epoll.lua
@@ -400,6 +400,9 @@ function interface:set(r, w)
end
if r == nil then r = self._wantread; end
if w == nil then w = self._wantwrite; end
+ if r == self._wantread and w == self._wantwrite then
+ return true
+ end
local ok, err, errno = poll:set(fd, r, w);
if not ok then
self:debug("Could not update poller state: %s(%d)", err, errno);