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32 lines
682 B
C
32 lines
682 B
C
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#ifndef EVENTFD_CTX_H_
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#define EVENTFD_CTX_H_
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#include "fix.h"
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <pthread.h>
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#define EVENTFD_CTX_FLAG_SEMAPHORE (1 << 0)
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typedef struct {
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int kq_; // non owning
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int flags_;
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pthread_mutex_t mutex_;
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bool is_signalled_;
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int self_pipe_[2]; // only used if EVFILT_USER is not available
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uint_least64_t counter_;
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} EventFDCtx;
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errno_t eventfd_ctx_init(EventFDCtx *eventfd, int kq, unsigned int counter,
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int flags);
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errno_t eventfd_ctx_terminate(EventFDCtx *eventfd);
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errno_t eventfd_ctx_write(EventFDCtx *eventfd, uint64_t value);
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errno_t eventfd_ctx_read(EventFDCtx *eventfd, uint64_t *value);
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#endif
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