// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at https://mozilla.org/MPL/2.0/.

#include "export.h"
#include "eventloop_platform.h"
#include "public/container_of.h"
#include "public/list.h"

EXPORT int tlsl_eventloop_init(struct tlsl_eventloop *el) {
  int platform_res;
  
  intrusive_list_init_empty(&el->event_list);

  if ((platform_res = tlsl_platform_el_init(el)))
    return platform_res;

  el->valid = true;
  return 0;
}

EXPORT void tlsl_eventloop_cleanup(struct tlsl_eventloop *el) {
  struct intrusive_list *li;
  struct tlsl_event *e;
  
  if (!el || !el->valid)
    return;

  INTRUSIVE_LIST_FOR_EACH_NO_REMOVE(li, &el->event_list) {
    e = TLSL_CONTAINER_OF(li, struct tlsl_event, list);
    tlsl_platform_el_event_cleanup(el, e);
  }

  tlsl_platform_el_cleanup(el);
  el->valid = false;
}

EXPORT int tlsl_eventloop_wait(
  struct tlsl_eventloop *el,
  tlsl_event_id_t *id_out,
  uint32_t *flags_out,
  int timeout_ms)
{
  return tlsl_platform_el_wait(el, id_out, flags_out, timeout_ms);
}

EXPORT int tlsl_eventloop_clear(struct tlsl_eventloop *el, struct tlsl_event *e) {
  return tlsl_platform_el_event_clear(el, e);
}

EXPORT void tlsl_eventloop_remove(struct tlsl_eventloop *el, struct tlsl_event *e) {
  tlsl_platform_el_event_remove(el, e);
  tlsl_platform_el_event_cleanup(el, e);
}

EXPORT int tlsl_eventloop_add_timer(
  struct tlsl_eventloop *el,
  struct tlsl_event *e,
  uint64_t millis,
  bool oneshot)
{
  int res;

  if ((res = tlsl_platform_el_add_timer(el, e, millis, oneshot)))
    return res;
  e->id.source = TLSL_EVENT_SOURCE_TIMER;
  return 0;
}

EXPORT int tlsl_eventloop_add_fd(
  struct tlsl_eventloop *el,
  struct tlsl_event *e,
  int fd,
  uint32_t flags)
{
  int res;
  
  if ((res = tlsl_platform_el_add_fd(el, e, fd, flags)))
    return res;
  e->id.source = TLSL_EVENT_SOURCE_FD;
  return 0;
}