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Annotation of freem/src/transact.h, revision 1.3

1.1       snw         1: /*
1.3     ! snw         2:  *   $Id$
1.1       snw         3:  *    Function prototypes, structs, and macros for FreeM
                      4:  *    transaction support
                      5:  *
                      6:  *  
1.2       snw         7:  *   Author: Serena Willis <snw@coherent-logic.com>
1.1       snw         8:  *    Copyright (C) 1998 MUG Deutschland
1.3     ! snw         9:  *    Copyright (C) 2020, 2025 Coherent Logic Development LLC
1.1       snw        10:  *
                     11:  *
                     12:  *   This file is part of FreeM.
                     13:  *
                     14:  *   FreeM is free software: you can redistribute it and/or modify
                     15:  *   it under the terms of the GNU Affero Public License as published by
                     16:  *   the Free Software Foundation, either version 3 of the License, or
                     17:  *   (at your option) any later version.
                     18:  *
                     19:  *   FreeM is distributed in the hope that it will be useful,
                     20:  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
                     21:  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     22:  *   GNU Affero Public License for more details.
                     23:  *
                     24:  *   You should have received a copy of the GNU Affero Public License
                     25:  *   along with FreeM.  If not, see <https://www.gnu.org/licenses/>.
                     26:  *
1.3     ! snw        27:  *   $Log$
        !            28:  *
        !            29:  * SPDX-FileCopyrightText:  (C) 2025 Coherent Logic Development LLC
        !            30:  * SPDX-License-Identifier: AGPL-3.0-or-later
1.1       snw        31:  **/
                     32: 
                     33: #define TP_MAX_NEST 256
                     34: #define TP_MAX_OPS 256
                     35: 
                     36: typedef struct tp_gblop {
                     37: 
                     38:        /* does this operation represent a LOCK? */
                     39:        short is_lock;
                     40: 
                     41:        /* flags presented to global(); action and 
                     42:           data do not apply if is_lock == TRUE */
                     43:        short action;
                     44:        char key[256];
                     45:        char data[256];
                     46: 
                     47: } tp_gblop;
                     48: 
                     49: typedef struct tp_transaction {
                     50: 
                     51:        /* transaction ID */
                     52:        char tp_id[256];
                     53: 
                     54:        /* transaction flags */
                     55:        short serial;
                     56:        short restartable;
                     57: 
                     58:        /* array of symbols to be restored on TRESTART */
                     59:        char sym_save[256][256];
                     60: 
                     61:        int opcount;
                     62: 
                     63:        tp_gblop ops[TP_MAX_OPS];
                     64: 
                     65: } tp_transaction;
                     66: 
                     67: extern int tp_committing;
                     68: extern int tp_level;
                     69: extern tp_transaction transactions[TP_MAX_NEST];
                     70: extern void tp_init(void);
                     71: extern short tp_get_sem(void);
                     72: extern void tp_release_sem(void);
                     73: extern int tp_tstart(char *tp_id, short serial, short restartable, char **sym_save);
                     74: extern int tp_add_op(short islock, short action, char *key, char *data);
                     75: extern int tp_tcommit(void);
                     76: extern int tp_cleanup(int levels);
                     77: extern int tp_trollback(int levels);
                     78: extern int tp_trestart(void);
                     79: extern void tp_tdump(void);
                     80: extern void tp_get_op_name(char *buf, const short action);
                     81: