libsagui-docs/example_httpreq_isolate_8c-example.html

/*                         _

 *   ___  __ _  __ _ _   _(_)

 *  / __|/ _` |/ _` | | | | |

 *  \__ \ (_| | (_| | |_| | |

 *  |___/\__,_|\__, |\__,_|_|

 *             |___/

 *

 * Cross-platform library which helps to develop web servers or frameworks.

 *

 * Copyright (C) 2016-2020 Silvio Clecio <silvioprog@gmail.com>

 *

 * Sagui library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2.1 of the License, or (at your option) any later version.

 *

 * Sagui library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with Sagui library; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

 */


#include <stdio.h>

#include <stdlib.h>

#include <stdint.h>

#include <string.h>

#include <unistd.h>

#include <sagui.h>


/* NOTE: Error checking has been omitted to make it clear. */


static void req_isolated_cb(__SG_UNUSED void *cls,

                            __SG_UNUSED struct sg_httpreq *req,

                            struct sg_httpres *res) {

  sleep(3);

  sg_httpres_send(

    res,

    "<html><head><title>Isolated request</title></head><body>Isolated and "

    "delayed request</body></html>",

    "text/html; charset=utf-8", 200);

}


static void req_cb(__SG_UNUSED void *cls, struct sg_httpreq *req,

                   struct sg_httpres *res) {

  if (strcmp(sg_httpreq_path(req), "/delayed") == 0)

    sg_httpreq_isolate(req, req_isolated_cb, NULL);

  else

    sg_httpres_send(res,

                    "<html><head><title>Hello world</title></head><body>Hello "

                    "world</body></html>",

                    "text/html; charset=utf-8", 200);

}


int main(int argc, const char *argv[]) {

  struct sg_httpsrv *srv;

  uint16_t port;

  if (argc != 2) {

    printf("%s <PORT>\n", argv[0]);

    return EXIT_FAILURE;

  }

  port = strtol(argv[1], NULL, 10);

  srv = sg_httpsrv_new(req_cb, NULL);

  if (!sg_httpsrv_listen(srv, port, false)) {

    sg_httpsrv_free(srv);

    return EXIT_FAILURE;

  }

  fprintf(stdout, "Server running at http://localhost:%d\n",

          sg_httpsrv_port(srv));

  fflush(stdout);

  getchar();

  sg_httpsrv_free(srv);

  return EXIT_SUCCESS;

}

sg_httpreq_isolate
int sg_httpreq_isolate(struct sg_httpreq *req, sg_httpreq_cb cb, void *cls)

sg_httpsrv_new
struct sg_httpsrv * sg_httpsrv_new(sg_httpreq_cb cb, void *cls) __attribute__((malloc))

sg_httpsrv_free
void sg_httpsrv_free(struct sg_httpsrv *srv)

sg_httpreq_path
const char * sg_httpreq_path(struct sg_httpreq *req)

sg_httpres_send
#define sg_httpres_send(res, val, content_type, status)
Definition sagui.h:1032

sg_httpsrv_listen
bool sg_httpsrv_listen(struct sg_httpsrv *srv, uint16_t port, bool threaded)

sg_httpsrv_port
uint16_t sg_httpsrv_port(struct sg_httpsrv *srv)

sagui.h

sg_httpreq

sg_httpres

sg_httpsrv