typedef int dispatch_fd_t;
void
dispatch_read(dispatch_fd_t fd,
size_t length,
dispatch_queue_t queue,
void (^handler)(dispatch_data_t data, int error));
void
dispatch_write(dispatch_fd_t fd,
dispatch_data_t data,
dispatch_queue_t queue,
void (^handler)(dispatch_data_t _Nullable data, int error));
#endif /* __BLOCKS__ */
DISPATCH_DECL(dispatch_io);
typedef unsigned long dispatch_io_type_t;
dispatch_io_t
dispatch_io_create(dispatch_io_type_t type,
dispatch_fd_t fd,
dispatch_queue_t queue,
void (^cleanup_handler)(int error));
dispatch_io_t
dispatch_io_create_with_path(dispatch_io_type_t type,
const char *path, int oflag, mode_t mode,
dispatch_queue_t queue,
void (^cleanup_handler)(int error));
dispatch_io_t
dispatch_io_create_with_io(dispatch_io_type_t type,
dispatch_io_t io,
dispatch_queue_t queue,
void (^cleanup_handler)(int error));
typedef void (^dispatch_io_handler_t)(bool done, dispatch_data_t _Nullable data,
int error);
void
dispatch_io_read(dispatch_io_t channel,
off_t offset,
size_t length,
dispatch_queue_t queue,
dispatch_io_handler_t io_handler);
void
dispatch_io_write(dispatch_io_t channel,
off_t offset,
dispatch_data_t data,
dispatch_queue_t queue,
dispatch_io_handler_t io_handler);
typedef unsigned long dispatch_io_close_flags_t;
void
dispatch_io_close(dispatch_io_t channel, dispatch_io_close_flags_t flags);
void
dispatch_io_barrier(dispatch_io_t channel, dispatch_block_t barrier);
void
dispatch_io_set_high_water(dispatch_io_t channel, size_t high_water);
void
dispatch_io_set_low_water(dispatch_io_t channel, size_t low_water);
typedef unsigned long dispatch_io_interval_flags_t;
void
dispatch_io_set_interval(dispatch_io_t channel,
uint64_t interval,
dispatch_io_interval_flags_t flags);
io.h
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