c/libuv
1
0
Fork 0
mirror of https://github.com/libuv/libuv synced 2025-03-28 21:13:16 +00:00
Code Issues Packages Projects Releases Wiki Activity

kqueue: lower overhead in uv__io_check_fd (#4617)

Browse Source 
Merge kevent calls along with the improvement of code simplicity.

Signed-off-by: Andy Pan <i@andypan.me>
This commit is contained in:
Andy Pan 2024-11-20 21:30:14 +08:00 committed by GitHub
parent 15e3f84678
commit 5dcef22c62
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
1 changed files with 6 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
src/unix/kqueue.c
View File

@ -97,8 +97,7 @@ int uv__io_fork(uv_loop_t* loop) {
int uv__io_check_fd(uv_loop_t* loop, int fd) {
struct kevent ev;
int rc;
struct kevent ev[2];
struct stat sb;
#ifdef __APPLE__
char path[MAXPATHLEN];
@ -133,17 +132,12 @@ int uv__io_check_fd(uv_loop_t* loop, int fd) {
}
#endif
rc = 0;
EV_SET(&ev, fd, EVFILT_READ, EV_ADD, 0, 0, 0);
if (kevent(loop->backend_fd, &ev, 1, NULL, 0, NULL))
rc = UV__ERR(errno);
EV_SET(ev, fd, EVFILT_READ, EV_ADD, 0, 0, 0);
EV_SET(ev + 1, fd, EVFILT_READ, EV_DELETE, 0, 0, 0);
if (kevent(loop->backend_fd, ev, 2, NULL, 0, NULL))
return UV__ERR(errno);
EV_SET(&ev, fd, EVFILT_READ, EV_DELETE, 0, 0, 0);
if (rc == 0)
if (kevent(loop->backend_fd, &ev, 1, NULL, 0, NULL))
abort();
return rc;
return 0;
}