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ff77bab398
* CI: ArchLinux build should now instrument `-Werror` * CI: Increased OpenWrt build verbosity Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
96 lines
1.7 KiB
C
96 lines
1.7 KiB
C
#ifndef NIO_H
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#define NIO_H 1
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#include <poll.h>
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#define WARN_UNUSED __attribute__((__warn_unused_result__))
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enum
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{
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NIO_SUCCESS = 0,
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NIO_ERROR_INTERNAL = 1,
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NIO_ERROR_SYSTEM = -1
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};
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enum
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{
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NIO_EVENT_INVALID = 0,
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NIO_EVENT_INPUT = 1,
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NIO_EVENT_OUTPUT = 2,
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NIO_EVENT_ERROR = 4,
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};
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struct nio
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{
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int nready;
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nfds_t poll_max_fds;
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struct pollfd * poll_fds;
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void ** poll_ptrs;
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nfds_t * poll_fds_set;
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int epoll_fd;
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int max_events;
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void * events;
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};
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void nio_init(struct nio * io);
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WARN_UNUSED
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int nio_use_poll(struct nio * io, nfds_t max_fds);
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WARN_UNUSED
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int nio_use_epoll(struct nio * io, int max_events);
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WARN_UNUSED
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int nio_add_fd(struct nio * io, int fd, int event_flags, void * ptr);
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WARN_UNUSED
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int nio_mod_fd(struct nio * io, int fd, int event_flags, void * ptr);
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WARN_UNUSED
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int nio_del_fd(struct nio * io, int fd);
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WARN_UNUSED
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int nio_run(struct nio * io, int timeout);
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WARN_UNUSED
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static inline int nio_get_nready(struct nio const * const io)
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{
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return io->nready;
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}
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WARN_UNUSED
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int nio_check(struct nio * io, int index, int events);
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WARN_UNUSED
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int nio_is_valid(struct nio const * const io, int index);
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WARN_UNUSED
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int nio_get_fd(struct nio * io, int index);
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WARN_UNUSED
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void * nio_get_ptr(struct nio * io, int index);
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WARN_UNUSED
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static inline int nio_has_input(struct nio * io, int index)
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{
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return nio_check(io, index, NIO_EVENT_INPUT);
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}
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WARN_UNUSED
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static inline int nio_can_output(struct nio * io, int index)
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{
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return nio_check(io, index, NIO_EVENT_OUTPUT);
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}
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WARN_UNUSED
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static inline int nio_has_error(struct nio * io, int index)
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{
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return nio_check(io, index, NIO_EVENT_ERROR);
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}
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void nio_free(struct nio * io);
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#endif
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