forked from cory/tildefriends
89 lines
2.3 KiB
C
89 lines
2.3 KiB
C
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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <uv.h>
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uv_loop_t *loop;
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uv_pipe_t queue;
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typedef struct {
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uv_write_t req;
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uv_buf_t buf;
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} write_req_t;
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void free_write_req(uv_write_t *req) {
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write_req_t *wr = (write_req_t*) req;
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free(wr->buf.base);
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free(wr);
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}
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void alloc_buffer(uv_handle_t *handle, size_t suggested_size, uv_buf_t *buf) {
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buf->base = malloc(suggested_size);
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buf->len = suggested_size;
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}
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void echo_write(uv_write_t *req, int status) {
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if (status) {
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fprintf(stderr, "Write error %s\n", uv_err_name(status));
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}
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free_write_req(req);
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}
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void echo_read(uv_stream_t *client, ssize_t nread, const uv_buf_t *buf) {
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if (nread > 0) {
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write_req_t *req = (write_req_t*) malloc(sizeof(write_req_t));
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req->buf = uv_buf_init(buf->base, nread);
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uv_write((uv_write_t*) req, client, &req->buf, 1, echo_write);
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return;
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}
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if (nread < 0) {
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if (nread != UV_EOF)
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fprintf(stderr, "Read error %s\n", uv_err_name(nread));
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uv_close((uv_handle_t*) client, NULL);
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}
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free(buf->base);
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}
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void on_new_connection(uv_stream_t *q, ssize_t nread, const uv_buf_t *buf) {
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if (nread < 0) {
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if (nread != UV_EOF)
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fprintf(stderr, "Read error %s\n", uv_err_name(nread));
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uv_close((uv_handle_t*) q, NULL);
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return;
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}
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uv_pipe_t *pipe = (uv_pipe_t*) q;
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if (!uv_pipe_pending_count(pipe)) {
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fprintf(stderr, "No pending count\n");
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return;
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}
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uv_handle_type pending = uv_pipe_pending_type(pipe);
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assert(pending == UV_TCP);
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uv_tcp_t *client = (uv_tcp_t*) malloc(sizeof(uv_tcp_t));
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uv_tcp_init(loop, client);
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if (uv_accept(q, (uv_stream_t*) client) == 0) {
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uv_os_fd_t fd;
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uv_fileno((const uv_handle_t*) client, &fd);
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fprintf(stderr, "Worker %d: Accepted fd %d\n", getpid(), fd);
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uv_read_start((uv_stream_t*) client, alloc_buffer, echo_read);
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}
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else {
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uv_close((uv_handle_t*) client, NULL);
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}
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}
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int main() {
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loop = uv_default_loop();
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uv_pipe_init(loop, &queue, 1 /* ipc */);
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uv_pipe_open(&queue, 0);
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uv_read_start((uv_stream_t*)&queue, alloc_buffer, on_new_connection);
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return uv_run(loop, UV_RUN_DEFAULT);
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}
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