binlog.h

   1 /* binlog.h - binary log implementation */
   2
   3 /* Copyright (C) 2008 Graham Barr
   4
   5  * This program is free software: you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation, either version 3 of the License, or
   8  * (at your option) any later version.
   9
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #ifndef binlog_h
  20 #define binlog_h
  21
  22 #include "job.h"
  23
  24 typedef struct binlog *binlog;
  25
  26 struct binlog {
  27   binlog next;
  28   unsigned int refs;
  29   char path[];
  30 };
  31
  32 extern char *binlog_dir;
  33 extern size_t binlog_size_limit;
  34
  35 void binlog_init();
  36
  37 /* Return the number of locks acquired: either 0 or 1. */
  38 int binlog_lock();
  39
  40 /* Returns the number of jobs successfully written (either 0 or 1). */
  41 int binlog_write_job(job j);
  42 size_t binlog_reserve_space_put(job j);
  43 size_t binlog_reserve_space_update(job j);
  44
  45 void binlog_read(job binlog_jobs);
  46 void binlog_close();
  47 const char *binlog_oldest_index();
  48 const char *binlog_current_index();
  49
  50 #endif
  51