remove accidentally committed in-development file

src/lib/ares_event_configchg.c

@@ -1,152 +0,0 @@
-/* MIT License
- *
- * Copyright (c) 2024 Brad House
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- * SPDX-License-Identifier: MIT
- */
-#include "ares_setup.h"
-#include "ares.h"
-#include "ares_private.h"
-#include "ares_event.h"
-
-static void ares_event_configchg_reload(ares_channel_t *channel)
-{
-  /* XXX: dispatch via thread so we don't block events */
-  ares_reinit(channel);
-}
-
-#ifdef __LINUX__
-#  include <sys/inotify.h>
-struct ares_event_configchg {
-  int           inotify_fd;
-  ares_event_t *event;
-};
-
-void ares_event_configchg_destroy(ares_event_configchg_t *configchg, , ares_event_thread *e)
-{
-  if (configchg == NULL || configchg->inotify_fd == -1) {
-    return;
-  }
-  ares_event_update(NULL, e, ARES_EVENT_FLAG_NONE, NULL, configchg->inotify_fd, NULL, NULL);
-}
-
-static void ares_event_configchg_free(void *data)
-{
-  ares_event_configchg_t *configchg = data;
-  if (configchg == NULL)
-    return;
-
-  if (configchg->inotify_fd >= 0) {
-    close(configchg->inotify_fd);
-    configchg->inotify_fd = -1;
-  }
-
-  ares_free(configchg);
-}
-
-void ares_event_configchg_cb(ares_event_thread_t *e, ares_socket_t fd,
-                             void *data, ares_event_flags_t flags)
-{
-  ares_event_configchg_t *configchg = data;
-  /* Some systems cannot read integer variables if they are not
-     properly aligned. On other systems, incorrect alignment may
-     decrease performance. Hence, the buffer used for reading from
-     the inotify file descriptor should have the same alignment as
-     struct inotify_event. */
-  char buf[4096] __attribute__ ((aligned(__alignof__(struct inotify_event))));
-  const struct inotify_event *event;
-  ssize_t len;
-  ares_bool_t triggered = ARES_FALSE;
-
-  while (1) {
-    const char *ptr;
-
-    len = read(fd, buf, sizeof(buf));
-    if (len <= 0) {
-      break;
-    }
-
-    /* Loop over all events in the buffer. */
-    for (ptr = buf; ptr < buf + len;
-         ptr += sizeof(struct inotify_event) + event->len) {
-
-      event = (const struct inotify_event *)ptr;
-
-      if (event->name == NULL)
-        continue;
-
-      if (strcasecmp(name, "resolv.conf") == 0 ||
-          strcasecmp(name, "nsswitch.conf") == 0) {
-        triggered = ARES_TRUE;
-      }
-    }
-  }
-  if (triggered) {
-    ares_event_configchg_reload(e->channel);
-  }
-}
-
-
-ares_status_t ares_event_configchg_init(ares_event_configchg_t **configchg, ares_event_thread *e)
-{
-  ares_status_t status = ARES_SUCCESS;
-
-  *configchg = ares_malloc_zero(sizeof(**configchg));
-  if (*configchg == NULL) {
-    return ARES_ENOMEM;
-  }
-
-  *configchg->inotify_fd = inotify_init1(IN_NONBLOCK|IN_CLOEXEC);
-  if (*configchg->inotify_fd == -1) {
-    status = ARES_ESERVFAIL;
-    goto done;
-  }
-
-
-  /* We need to monitor /etc/resolv.conf, /etc/nsswitch.conf */
-  if (inotify_add_watch(*configchg->inotify_fd, "/etc", IN_CREATE|IN_MODIFY|IN_MOVED_TO|IN_ONLYDIR) == -1) {
-    status = ARES_ESERVFAIL;
-    goto done;
-  }
-
-  status = ares_event_update(&(*configchg)->event, e, ARES_EVENT_FLAG_READ,
-                             cb, *configchg->inotify_fd,
-                             ares_event_configchg_free, NULL);
-
-done:
-  if (status != ARES_SUCCESS) {
-    ares_event_configchg_destroy(*configchg);
-    *configchg = NULL;
-  }
-  return status;
-}
-
-
-
-
-#elif defined(_WIN32)
-
-#elif defined(__APPLE__)
-
-#else
-
-#endif