100 lines
2.1 KiB
C
100 lines
2.1 KiB
C
#ifndef LANDER_EVENT_LOOP
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#define LANDER_EVENT_LOOP
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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 "http_req.h"
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#include "trie.h"
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// Size of the read and write buffers for each connection, in bytes
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#define EVENT_LOOP_BUFFER_SIZE 1024
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typedef struct event_loop_gctx {
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Trie *trie;
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} event_loop_gctx;
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event_loop_gctx *event_loop_gctx_init();
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typedef struct event_loop_ctx {
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http_request req;
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event_loop_gctx *g;
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} event_loop_ctx;
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event_loop_ctx *event_loop_ctx_init(event_loop_gctx *g);
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void event_loop_ctx_free(event_loop_ctx *ctx);
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/**
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* Represents an active connection managed by the event loop
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*/
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typedef enum {
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event_loop_conn_state_req = 0,
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event_loop_conn_state_res = 1,
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event_loop_conn_state_end = 2,
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} event_loop_conn_state;
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typedef struct event_loop_conn {
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int fd;
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event_loop_conn_state state;
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// buffer for reading
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size_t rbuf_size;
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size_t rbuf_read;
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uint8_t rbuf[EVENT_LOOP_BUFFER_SIZE];
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// buffer for writing
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size_t wbuf_size;
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size_t wbuf_sent;
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uint8_t wbuf[EVENT_LOOP_BUFFER_SIZE];
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// If true, the server will close the connection after the final write buffer
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// has been written
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bool close_after_write;
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event_loop_ctx *ctx;
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} event_loop_conn;
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/*
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* Initialize a new event_loop_conn struct
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*/
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event_loop_conn *event_loop_conn_init(event_loop_gctx *g);
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void event_loop_conn_free(event_loop_conn *conn);
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/*
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* Process data on a connection
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*/
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void event_loop_conn_io(event_loop_conn *conn);
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/*
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* Main struct object representing the event loop
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*/
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typedef struct event_loop {
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event_loop_conn **connections;
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size_t connection_count;
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event_loop_gctx *gctx;
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} event_loop;
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/*
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* Initialize a new event_loop struct
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*/
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event_loop *event_loop_init(event_loop_gctx *g);
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/*
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* Place a new connection into the event loop's internal array.
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*
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* Returns -1 if the internal realloc failed
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*/
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int event_loop_put(event_loop *loop, event_loop_conn *conn);
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/**
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* Accept a new connection for the given file descriptor.
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*/
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int event_loop_accept(event_loop *loop, int fd);
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/*
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* Run the event loop. This function never returns.
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*/
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void event_loop_run(event_loop *el, int port);
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#endif
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