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109 lines
2.1 KiB
C
109 lines
2.1 KiB
C
#ifndef EPOLLFD_CTX_H_
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#define EPOLLFD_CTX_H_
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#include "fix.h"
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#define SHIM_SYS_SHIM_HELPERS
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#include <sys/epoll.h>
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#include <sys/queue.h>
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#include <sys/tree.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 <poll.h>
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#include <pthread.h>
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struct registered_fds_node_;
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typedef struct registered_fds_node_ RegisteredFDsNode;
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typedef enum {
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EOF_STATE_READ_EOF = 0x01,
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EOF_STATE_WRITE_EOF = 0x02,
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} EOFState;
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typedef enum {
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NODE_TYPE_FIFO = 1,
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NODE_TYPE_SOCKET = 2,
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NODE_TYPE_KQUEUE = 3,
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NODE_TYPE_OTHER = 4,
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NODE_TYPE_POLL = 5,
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} NodeType;
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struct registered_fds_node_ {
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RB_ENTRY(registered_fds_node_) entry;
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TAILQ_ENTRY(registered_fds_node_) pollfd_list_entry;
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int fd;
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epoll_data_t data;
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bool is_registered;
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bool has_evfilt_read;
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bool has_evfilt_write;
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bool has_evfilt_except;
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bool got_evfilt_read;
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bool got_evfilt_write;
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bool got_evfilt_except;
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NodeType node_type;
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union {
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struct {
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bool readable;
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bool writable;
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} fifo;
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} node_data;
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int eof_state;
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bool pollpri_active;
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uint16_t events;
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uint32_t revents;
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bool is_edge_triggered;
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bool is_oneshot;
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bool is_on_pollfd_list;
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int self_pipe[2];
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};
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typedef TAILQ_HEAD(pollfds_list_, registered_fds_node_) PollFDList;
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typedef RB_HEAD(registered_fds_set_, registered_fds_node_) RegisteredFDsSet;
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typedef struct {
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int kq; // non owning
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pthread_mutex_t mutex;
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PollFDList poll_fds;
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size_t poll_fds_size;
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RegisteredFDsSet registered_fds;
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size_t registered_fds_size;
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struct kevent *kevs;
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size_t kevs_length;
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struct pollfd *pfds;
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size_t pfds_length;
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pthread_mutex_t nr_polling_threads_mutex;
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pthread_cond_t nr_polling_threads_cond;
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unsigned long nr_polling_threads;
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int self_pipe[2];
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} EpollFDCtx;
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errno_t epollfd_ctx_init(EpollFDCtx *epollfd, int kq);
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errno_t epollfd_ctx_terminate(EpollFDCtx *epollfd);
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void epollfd_ctx_fill_pollfds(EpollFDCtx *epollfd, struct pollfd *pfds);
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errno_t epollfd_ctx_ctl(EpollFDCtx *epollfd, int op, int fd2,
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struct epoll_event *ev);
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errno_t epollfd_ctx_wait(EpollFDCtx *epollfd, struct epoll_event *ev, int cnt,
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int *actual_cnt);
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#endif
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