src/include/scheduler.h

   1 /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2
   3 /*  Monkey HTTP Daemon
   4  *  ------------------
   5  *  Copyright (C) 2001-2010, Eduardo Silva P. <edsiper@gmail.com>
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU Library General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  20  */
  21
  22 #ifndef MK_SCHEDULER_H
  23 #define MK_SCHEDULER_H
  24
  25 #define MK_SCHEDULER_CONN_AVAILABLE -1
  26 #define MK_SCHEDULER_CONN_PENDING 0
  27 #define MK_SCHEDULER_CONN_PROCESS 1
  28
  29 struct sched_connection
  30 {
  31     int socket;
  32     int status;
  33     mk_pointer ipv4;
  34     time_t arrive_time;
  35 };
  36
  37 /* Global struct */
  38 struct sched_list_node
  39 {
  40     short int idx;
  41     pthread_t tid;
  42     pid_t pid;
  43     int epoll_fd;
  44
  45     struct sched_connection *queue;
  46     struct client_request *request_handler;
  47     struct sched_list_node *next;
  48
  49 };
  50
  51 struct sched_list_node *sched_list;
  52
  53 /* Struct under thread context */
  54 typedef struct
  55 {
  56     int epoll_fd;
  57     int max_events;
  58 } sched_thread_conf;
  59
  60 pthread_key_t epoll_fd;
  61
  62 int mk_sched_register_thread(pthread_t tid, int epoll_fd);
  63 int mk_sched_launch_thread(int max_events);
  64 void *mk_sched_launch_epoll_loop(void *thread_conf);
  65 struct sched_list_node *mk_sched_get_handler_owner();
  66 struct request_idx *mk_sched_get_request_index();
  67 void mk_sched_set_request_index(struct request_idx *ri);
  68
  69 int mk_sched_get_thread_poll();
  70 void mk_sched_set_thread_poll(int epoll);
  71
  72 struct sched_list_node *mk_sched_get_thread_conf();
  73 void mk_sched_update_thread_status(struct sched_list_node *sched,
  74                                    int active, int closed);
  75
  76
  77 int mk_sched_check_timeouts(struct sched_list_node *sched);
  78 int mk_sched_add_client(struct sched_list_node *sched, int remote_fd);
  79 int mk_sched_remove_client(struct sched_list_node *sched, int remote_fd);
  80 struct sched_connection *mk_sched_get_connection(struct sched_list_node
  81                                                  *sched, int remote_fd);
  82 int mk_sched_update_conn_status(struct sched_list_node *sched, int remote_fd,
  83                                 int status);
  84
  85 #endif