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73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
#pragma once
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#include <stdint.h>
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#include <stdbool.h>
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#include <time.h>
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#include "list.h"
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#include "scoped.h"
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#define OWD_EVENT_READABLE (1 << 0)
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#define OWD_EVENT_WRITABLE (1 << 1)
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#if defined(OWD_EVENTLOOP_KQUEUE)
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#define OWD_EVENTLOOP_KQUEUE_FILTERS_MAX 2
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#endif
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enum owd_event_source {
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OWD_EVENT_SOURCE_FD,
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OWD_EVENT_SOURCE_TIMER,
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};
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typedef struct {
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uintptr_t obj;
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enum owd_event_source source;
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} owd_event_id_t;
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struct owd_event {
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owd_event_id_t id;
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struct intrusive_list list;
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#if defined(OWD_EVENTLOOP_KQUEUE)
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uintptr_t kqueue_ident;
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uint16_t kqueue_filters[OWD_EVENTLOOP_KQUEUE_FILTERS_MAX];
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uint8_t kqueue_filters_len;
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#elif defined(OWD_EVENTLOOP_EPOLL)
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int epoll_registered_fd;
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bool epoll_fd_owned;
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#endif
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};
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struct owd_eventloop {
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struct intrusive_list event_list;
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#if defined(OWD_EVENTLOOP_KQUEUE)
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uintptr_t kqueue_timer_next;
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int kqueue_fd;
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#elif defined(OWD_EVENTLOOP_EPOLL)
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int epoll_fd;
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#endif
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};
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static inline bool owd_event_id_eq(owd_event_id_t eid1, owd_event_id_t eid2) {
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return (eid1.obj == eid2.obj) && (eid1.source == eid2.source);
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}
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int owd_eventloop_init(struct owd_eventloop *el);
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void owd_eventloop_cleanup(struct owd_eventloop *el);
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int owd_eventloop_wait(struct owd_eventloop *el, owd_event_id_t *id_out, uint32_t *flags_out, const struct timespec *timeout);
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int owd_eventloop_clear(struct owd_eventloop *el, struct owd_event *e);
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void owd_eventloop_remove(struct owd_eventloop *el, struct owd_event *e);
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int owd_eventloop_add_timer(struct owd_eventloop *el, struct owd_event *e, uint64_t millis, bool oneshot);
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int owd_eventloop_add_fd(struct owd_eventloop *el, struct owd_event *e, int fd, uint32_t flags);
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DEF_SCOPED_TYPE(eventloop_stack, struct owd_eventloop *, NULL, owd_eventloop_cleanup)
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#define EVENTLOOP_STACK_SCOPED(VAL) SCOPED(eventloop_stack, struct owd_eventloop *, VAL)
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#define EVENTLOOP_STACK_CLOSE(EL) _scoped_eventloop_stack_cleanup(EL)
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