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/build/buildd-opendnssec_1.3.2-1~bpo60+1-ia64-Ga1C3m/opendnssec-1.3.2/signer/src/scheduler/schedule.h

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00001 /*
00002  * $Id$
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 SCHEDULER_SCHEDULE_H
00035 #define SCHEDULER_SCHEDULE_H
00036 
00037 #include "config.h"
00038 #include "scheduler/task.h"
00039 #include "shared/allocator.h"
00040 #include "shared/locks.h"
00041 #include "shared/status.h"
00042 
00043 #include <stdio.h>
00044 #include <time.h>
00045 
00046 #ifdef HAVE_SYS_TYPES_H
00047 # include <sys/types.h>
00048 #endif
00049 #ifdef HAVE_UNISTD_H
00050 # include <unistd.h>
00051 #endif
00052 
00053 #include <ldns/ldns.h>
00054 
00055 
00059 typedef struct schedule_struct schedule_type;
00060 struct schedule_struct {
00061     allocator_type* allocator;
00062     ldns_rbtree_t* tasks;
00063     int flushcount;
00064     int loading; /* to determine backoff */
00065     lock_basic_type schedule_lock;
00066 };
00067 
00074 schedule_type* schedule_create(allocator_type* allocator);
00075 
00082 void schedule_flush(schedule_type* schedule, task_id override);
00083 
00091 task_type* schedule_lookup_task(schedule_type* schedule, task_type* task);
00092 
00101 ods_status schedule_task(schedule_type* schedule, task_type* task, int log);
00102 
00110 task_type* unschedule_task(schedule_type* schedule, task_type* task);
00111 
00121 ods_status reschedule_task(schedule_type* schedule, task_type* task,
00122     task_id what, time_t when);
00123 
00130 task_type* schedule_pop_task(schedule_type* schedule);
00131 
00138 task_type* schedule_get_first_task(schedule_type* schedule);
00139 
00146 void schedule_print(FILE* out, schedule_type* schedule);
00147 
00153 void schedule_cleanup(schedule_type* schedule);
00154 
00155 #endif /* SCHEDULER_SCHEDULE_H */

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