Mirrors/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2026-10-02 11:10:54 +03:00
Code Issues Packages Projects Releases Wiki Activity

fix(vfs): clear dummy select output fd sets

Browse Source 
Zero dummy VFS output fd sets in start_select.
This keeps revents limited to readiness from end_select.
It prevents spurious POLLERR bits in poll() regression tests.
This commit is contained in:
Tomáš Rohlínek
2026-02-19 11:27:21 +01:00
parent d7344e9658
commit d509422fec
1 changed files with 12 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
components/vfs/test_apps/main/test_vfs_select.c
+12 -1
View File
@@ -60,7 +60,6 @@ static int dummy_close(int fd)
static esp_err_t dummy_start_select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, esp_vfs_select_sem_t sem, void **end_select_args)
{
(void) nfds;
(void) exceptfds;
dummy_select_args_t *args = calloc(1, sizeof(dummy_select_args_t));
if (args == NULL) {
@@ -72,6 +71,18 @@ static esp_err_t dummy_start_select(int nfds, fd_set *readfds, fd_set *writefds,
args->ready_read = readfds && FD_ISSET(args->local_fd, readfds);
args->ready_write = writefds && FD_ISSET(args->local_fd, writefds);
// start_select receives requested events; clear all output sets and let
// end_select publish only actual readiness.
if (readfds) {
FD_ZERO(readfds);
}
if (writefds) {
FD_ZERO(writefds);
}
if (exceptfds) {
FD_ZERO(exceptfds);
}
if (!(args->ready_read || args->ready_write)) {
free(args);
*end_select_args = NULL;