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Annotation of freem/src/jnldefs.h, revision 1.2

1.1       snw         1: /*
                      2:  *                            *
                      3:  *                           * *
                      4:  *                          *   *
                      5:  *                     ***************
                      6:  *                      * *       * *
                      7:  *                       *  MUMPS  *
                      8:  *                      * *       * *
                      9:  *                     ***************
                     10:  *                          *   *
                     11:  *                           * *
                     12:  *                            *
                     13:  *
                     14:  *   jnldefs.h
                     15:  *    Data structures and constants for journaling
                     16:  *
                     17:  *  
1.2     ! snw        18:  *   Author: Serena Willis <snw@coherent-logic.com>
1.1       snw        19:  *    Copyright (C) 1998 MUG Deutschland
                     20:  *    Copyright (C) 2020 Coherent Logic Development LLC
                     21:  *
                     22:  *
                     23:  *   This file is part of FreeM.
                     24:  *
                     25:  *   FreeM is free software: you can redistribute it and/or modify
                     26:  *   it under the terms of the GNU Affero Public License as published by
                     27:  *   the Free Software Foundation, either version 3 of the License, or
                     28:  *   (at your option) any later version.
                     29:  *
                     30:  *   FreeM is distributed in the hope that it will be useful,
                     31:  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
                     32:  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     33:  *   GNU Affero Public License for more details.
                     34:  *
                     35:  *   You should have received a copy of the GNU Affero Public License
                     36:  *   along with FreeM.  If not, see <https://www.gnu.org/licenses/>.
                     37:  *
                     38:  **/
                     39: 
                     40: #define FRM_JNL_VERSION 2
                     41: 
                     42: #define JNLA_TSTART 0
                     43: #define JNLA_TRESTART 1
                     44: #define JNLA_TROLLBACK 2
                     45: #define JNLA_TCOMMIT 3
                     46: #define JNLA_SET 4
                     47: #define JNLA_KILL 5
                     48: #define JNLA_CHECKPOINT_OK 6
                     49: #define JNLA_CHECKPOINT_FAIL 7
                     50: #define JNLA_CHECKPOINT_RESTORE 7
                     51: #define JNLA_CHECKPOINT_REMOVE 8
                     52: 
                     53: /* replication status values */
                     54: #define REPL_STAT_AWAIT 0
                     55: #define REPL_STAT_SENDING 1
                     56: #define REPL_STAT_OK 2
                     57: #define REPL_STAT_FAILED 3
                     58: 
                     59: typedef struct jnl_hdr_t {
                     60:     char magic[5];     /* FRMJL */
                     61:     short fmt_version;         /* FRM_JNL_VERSION */
                     62:     char host_triplet[40]; /* the host triplet supplied by the build system */
                     63: } jnl_hdr_t;
                     64: 
                     65: typedef struct jnl_ent_t {
                     66: 
                     67:     char host_id[256];
                     68:     unsigned long tran_id;
                     69: 
                     70:     time_t ts; /* timestamp */
                     71:     pid_t pid;
                     72:     short repl_stat; /* can be any of the REPL_STAT_ constants defined above */
                     73:     short action; /* can be any of the JNLA_ constants defined above */
                     74: 
                     75:     char key[1024];
                     76:     char data[1024];
                     77: 
                     78: } jnl_ent_t;