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Try to solve epoll critical errors

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Lorenz Stechauner
2025-09-26 11:36:54 +02:00
parent 73a469a7de
commit be84c3048b
1 changed files with 9 additions and 9 deletions
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18
src/async.c
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@@ -6,7 +6,6 @@
* @date 2022-12-28
*/
#include "async.h"
#include "logger.h"
#include "lib/list.h"
#include "lib/utils.h"
@@ -21,6 +20,8 @@
#include <unistd.h>
#include <openssl/ssl.h>
#include "async.h"
#define ASYNC_MAX_EVENTS 16
typedef struct {
@@ -298,8 +299,9 @@ void async_thread(void) {
errno = 0;
if (epoll_ctl(epoll_fd, EPOLL_CTL_DEL, evt->fd, NULL) != -1)
continue;
} else if (errno == EBADF) {
// fd probably already closed
} else if (errno == EBADF || errno == EPERM) {
// fd probably already closed or does not support epoll somehow
// FIXME should not happen
warning("Unable to add file descriptor to epoll instance");
errno = 0;
local = list_delete(local, &evt);
@@ -347,9 +349,8 @@ void async_thread(void) {
if (async_exec(evt, async_e2a(events[i].events)) == 0) {
logger_set_prefix("");
if (epoll_ctl(epoll_fd, EPOLL_CTL_DEL, evt->fd, NULL) == -1) {
if (errno == EBADF || errno == ENOENT) {
// already closed fd or not found, do not die
warning("Unable to remove file descriptor from epoll instance");
if (errno == EBADF || errno == ENOENT || errno == EPERM) {
// already closed, fd not found, or fd does not support epoll, anyway do not die
errno = 0;
} else {
critical("Unable to remove file descriptor from epoll instance");
@@ -378,9 +379,8 @@ void async_thread(void) {
evt->to_cb(evt->arg);
if (epoll_ctl(epoll_fd, EPOLL_CTL_DEL, evt->fd, NULL) == -1) {
if (errno == EBADF || errno == ENOENT) {
// already closed fd or not found, do not die
warning("Unable to remove file descriptor from epoll instance");
if (errno == EBADF || errno == ENOENT || errno == EPERM) {
// already closed, fd not found, or fd does not support epoll, anyway do not die
errno = 0;
} else {
critical("Unable to remove file descriptor from epoll instance");