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kqueue: lower overhead in uv__io_check_fd (#4617)

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Merge kevent calls along with the improvement of code simplicity.

Signed-off-by: Andy Pan <i@andypan.me>
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Andy Pan 2024-11-20 21:30:14 +08:00 committed by GitHub
parent 15e3f84678
commit 5dcef22c62
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GPG Key ID: B5690EEEBB952194
1 changed files with 6 additions and 12 deletions
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18
src/unix/kqueue.c
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@ -97,8 +97,7 @@ int uv__io_fork(uv_loop_t* loop) {
int uv__io_check_fd(uv_loop_t* loop, int fd) { int uv__io_check_fd(uv_loop_t* loop, int fd) {
struct kevent ev; struct kevent ev[2];
int rc;
struct stat sb; struct stat sb;
#ifdef __APPLE__ #ifdef __APPLE__
char path[MAXPATHLEN]; char path[MAXPATHLEN];
@ -133,17 +132,12 @@ int uv__io_check_fd(uv_loop_t* loop, int fd) {
} }
#endif #endif
rc = 0; EV_SET(ev, fd, EVFILT_READ, EV_ADD, 0, 0, 0);
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, 1, NULL, 0, NULL)) if (kevent(loop->backend_fd, ev, 2, NULL, 0, NULL))
rc = UV__ERR(errno); return UV__ERR(errno);
EV_SET(&ev, fd, EVFILT_READ, EV_DELETE, 0, 0, 0); return 0;
if (rc == 0)
if (kevent(loop->backend_fd, &ev, 1, NULL, 0, NULL))
abort();
return rc;
} }