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) 2008, Eduardo Silva P.
   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_ACTIVE_NONE 0
  26 #define MK_SCHEDULER_ACTIVE_UP 1
  27 #define MK_SCHEDULER_ACTIVE_DOWN -1
  28
  29 #define MK_SCHEDULER_CLOSED_NONE 0
  30 #define MK_SCHEDULER_CLOSED_UP 1
  31 #define MK_SCHEDULER_CLOSED_DOWN -1
  32
  33 #define MK_SCHEDULER_CONN_AVAILABLE -1
  34 #define MK_SCHEDULER_CONN_PENDING 0
  35 #define MK_SCHEDULER_CONN_PROCESS 1
  36
  37
  38 struct sched_connection
  39 {
  40     int socket;
  41     int status;
  42     mk_pointer ipv4;
  43     time_t arrive_time;
  44 };
  45
  46 /* Global struct */
  47 struct sched_list_node
  48 {
  49     short int idx;
  50     pthread_t tid;
  51     pid_t pid;
  52     int epoll_fd;
  53     int active_requests;
  54     int closed_requests;
  55     struct sched_connection *queue;
  56     struct client_request *request_handler;
  57     struct sched_list_node *next;
  58
  59 };
  60
  61 struct sched_list_node *sched_list;
  62
  63 /* Struct under thread context */
  64 typedef struct
  65 {
  66     int epoll_fd;
  67     int max_events;
  68 } sched_thread_conf;
  69
  70 pthread_key_t epoll_fd;
  71
  72 int mk_sched_register_thread(pthread_t tid, int epoll_fd);
  73 int mk_sched_launch_thread(int max_events);
  74 void *mk_sched_launch_epoll_loop(void *thread_conf);
  75 struct sched_list_node *mk_sched_get_handler_owner();
  76 struct request_idx *mk_sched_get_request_index();
  77 void mk_sched_set_request_index(struct request_idx *ri);
  78
  79 int mk_sched_get_thread_poll();
  80 void mk_sched_set_thread_poll(int epoll);
  81
  82 struct sched_list_node *mk_sched_get_thread_conf();
  83 void mk_sched_update_thread_status(struct sched_list_node *sched,
  84                                    int active, int closed);
  85
  86
  87 int mk_sched_check_timeouts(struct sched_list_node *sched);
  88 int mk_sched_add_client(struct sched_list_node *sched, int remote_fd);
  89 int mk_sched_remove_client(struct sched_list_node *sched, int remote_fd);
  90 struct sched_connection *mk_sched_get_connection(struct sched_list_node
  91                                                  *sched, int remote_fd);
  92 int mk_sched_update_conn_status(struct sched_list_node *sched, int remote_fd,
  93                                 int status);
  94
  95 #endif