Hello, World! from h2o

hello.c

/*
 * Copyright (c) 2014 DeNA Co., Ltd.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */
#include <errno.h>
#include <netinet/in.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include "h2o.h"
#include "h2o/http1.h"


static void register_handler(h2o_hostconf_t *host_config, int (*on_req)(h2o_handler_t *, h2o_req_t *))
{
    h2o_handler_t *handler = h2o_create_handler(host_config, sizeof(*handler));
    handler->on_req = on_req;
}

static int hello(h2o_handler_t *self, h2o_req_t *req)
{
    static h2o_generator_t generator = { NULL, NULL };
    static h2o_iovec_t body = {H2O_STRLIT("Hello, World!\n")};
    req->res.status = 200;
    req->res.reason = "OK";
    req->res.content_length = body.len;
    h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_CONTENT_TYPE, H2O_STRLIT("text/plain; charset=utf-8"));
    h2o_start_response(req, &generator);
    h2o_send(req, &body, 1, 1);
    return 0;
}

static h2o_globalconf_t config;
static h2o_context_t ctx;

static void on_accept(uv_stream_t *listener, int status)
{
    uv_tcp_t *conn;
    h2o_socket_t *sock;

    if (status != 0)
        return;

    conn = h2o_malloc(sizeof(*conn));
    uv_tcp_init(listener->loop, conn);

    if (uv_accept(listener, (uv_stream_t*)conn) != 0) {
        uv_close((uv_handle_t*)conn, (uv_close_cb)free);
        return;
    }

    sock = h2o_uv_socket_create((uv_stream_t*)conn, NULL, 0, (uv_close_cb)free);
    h2o_http1_accept(&ctx, sock);
}

static int create_listener(void)
{
    static uv_tcp_t listener;
    struct sockaddr_in addr;
    int r;

    uv_tcp_init(ctx.loop, &listener);
    uv_ip4_addr("127.0.0.1", 7890, &addr);
    if ((r = uv_tcp_bind(&listener, (struct sockaddr*)&addr, 0)) != 0) {
        fprintf(stderr, "uv_tcp_bind:%s\n", uv_strerror(r));
        goto Error;
    }
    if ((r = uv_listen((uv_stream_t*)&listener, 128, on_accept)) != 0) {
        fprintf(stderr, "uv_listen:%s\n", uv_strerror(r));
        goto Error;
    }

    return 0;
Error:
    uv_close((uv_handle_t*)&listener, NULL);
    return r;
}

int main(int argc, char **argv)
{
    h2o_hostconf_t *hostconf;

    signal(SIGPIPE, SIG_IGN);

    h2o_config_init(&config);
    hostconf = h2o_config_register_host(&config, "default");
    register_handler(hostconf, hello);

    uv_loop_t loop;
    uv_loop_init(&loop);
    h2o_context_init(&ctx, &loop, &config);

    /* disabled by default: uncomment the line below to enable access logging */
    /* h2o_access_log_register(&config.default_host, "/dev/stdout", NULL); */

    if (create_listener() != 0) {
        fprintf(stderr, "failed to listen to 127.0.0.1:7890:%s\n", strerror(errno));
        goto Error;
    }

    uv_run(ctx.loop, UV_RUN_DEFAULT);
Error:
    return 1;
}

No Longer compiles with h2o.