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/build/buildd-opendnssec_1.3.2-1~bpo60+1-armel-4stS1W/opendnssec-1.3.2/signer/src/daemon/worker.h

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00001 /*
00002  * $Id: worker.h 5432 2011-08-22 12:55:04Z matthijs $
00003  *
00004  * Copyright (c) 2009 NLNet Labs. All rights reserved.
00005  *
00006  * Redistribution and use in source and binary forms, with or without
00007  * modification, are permitted provided that the following conditions
00008  * are met:
00009  * 1. Redistributions of source code must retain the above copyright
00010  *    notice, this list of conditions and the following disclaimer.
00011  * 2. Redistributions in binary form must reproduce the above copyright
00012  *    notice, this list of conditions and the following disclaimer in the
00013  *    documentation and/or other materials provided with the distribution.
00014  *
00015  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
00016  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
00017  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00018  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
00019  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00020  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
00021  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00022  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
00023  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
00024  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
00025  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00026  *
00027  */
00028 
00034 #ifndef DAEMON_WORKER_H
00035 #define DAEMON_WORKER_H
00036 
00037 #include "scheduler/task.h"
00038 #include "shared/allocator.h"
00039 #include "shared/locks.h"
00040 
00041 #include <time.h>
00042 
00043 enum worker_enum {
00044     WORKER_NONE = 0,
00045     WORKER_WORKER = 1,
00046     WORKER_DRUDGER
00047 };
00048 typedef enum worker_enum worker_id;
00049 
00050 struct engine_struct;
00051 
00052 typedef struct worker_struct worker_type;
00053 struct worker_struct {
00054     allocator_type* allocator;
00055     int thread_num;
00056     ods_thread_type thread_id;
00057     struct engine_struct* engine;
00058     task_type* task;
00059     task_id working_with;
00060     worker_id type;
00061     time_t clock_in;
00062     size_t jobs_appointed;
00063     size_t jobs_completed;
00064     size_t jobs_failed;
00065     int sleeping;
00066     int waiting;
00067     int need_to_exit;
00068     cond_basic_type worker_alarm;
00069     lock_basic_type worker_lock;
00070 };
00071 
00080 worker_type* worker_create(allocator_type* allocator, int num,
00081     worker_id type);
00082 
00088 void worker_start(worker_type* worker);
00089 
00097 void worker_sleep(worker_type* worker, time_t timeout);
00098 
00107 void worker_sleep_unless(worker_type* worker, time_t timeout);
00108 
00114 void worker_wakeup(worker_type* worker);
00115 
00122 void worker_wait(lock_basic_type* lock, cond_basic_type* condition);
00123 
00130 void worker_notify(lock_basic_type* lock, cond_basic_type* condition);
00131 
00138 void worker_notify_all(lock_basic_type* lock, cond_basic_type* condition);
00139 
00145 void worker_cleanup(worker_type* worker);
00146 
00147 #endif /* DAEMON_WORKER_H */

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