Return to transact.h CVS log

Up to [Coherent Logic Development] / freem / src

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

1.1       snw         1: /*
                      2:  *                            *
                      3:  *                           * *
                      4:  *                          *   *
                      5:  *                     ***************
                      6:  *                      * *       * *
                      7:  *                       *  MUMPS  *
                      8:  *                      * *       * *
                      9:  *                     ***************
                     10:  *                          *   *
                     11:  *                           * *
                     12:  *                            *
                     13:  *
                     14:  *   transact.h
                     15:  *    Function prototypes, structs, and macros for FreeM
                     16:  *    transaction support
                     17:  *
                     18:  *  
1.2     ! snw        19:  *   Author: Serena Willis <snw@coherent-logic.com>
1.1       snw        20:  *    Copyright (C) 1998 MUG Deutschland
                     21:  *    Copyright (C) 2020 Coherent Logic Development LLC
                     22:  *
                     23:  *
                     24:  *   This file is part of FreeM.
                     25:  *
                     26:  *   FreeM is free software: you can redistribute it and/or modify
                     27:  *   it under the terms of the GNU Affero Public License as published by
                     28:  *   the Free Software Foundation, either version 3 of the License, or
                     29:  *   (at your option) any later version.
                     30:  *
                     31:  *   FreeM is distributed in the hope that it will be useful,
                     32:  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
                     33:  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     34:  *   GNU Affero Public License for more details.
                     35:  *
                     36:  *   You should have received a copy of the GNU Affero Public License
                     37:  *   along with FreeM.  If not, see <https://www.gnu.org/licenses/>.
                     38:  *
                     39:  **/
                     40: 
                     41: #define TP_MAX_NEST 256
                     42: #define TP_MAX_OPS 256
                     43: 
                     44: typedef struct tp_gblop {
                     45: 
                     46:        /* does this operation represent a LOCK? */
                     47:        short is_lock;
                     48: 
                     49:        /* flags presented to global(); action and 
                     50:           data do not apply if is_lock == TRUE */
                     51:        short action;
                     52:        char key[256];
                     53:        char data[256];
                     54: 
                     55: } tp_gblop;
                     56: 
                     57: typedef struct tp_transaction {
                     58: 
                     59:        /* transaction ID */
                     60:        char tp_id[256];
                     61: 
                     62:        /* transaction flags */
                     63:        short serial;
                     64:        short restartable;
                     65: 
                     66:        /* array of symbols to be restored on TRESTART */
                     67:        char sym_save[256][256];
                     68: 
                     69:        int opcount;
                     70: 
                     71:        tp_gblop ops[TP_MAX_OPS];
                     72: 
                     73: } tp_transaction;
                     74: 
                     75: extern int tp_committing;
                     76: extern int tp_level;
                     77: extern tp_transaction transactions[TP_MAX_NEST];
                     78: extern void tp_init(void);
                     79: extern short tp_get_sem(void);
                     80: extern void tp_release_sem(void);
                     81: extern int tp_tstart(char *tp_id, short serial, short restartable, char **sym_save);
                     82: extern int tp_add_op(short islock, short action, char *key, char *data);
                     83: extern int tp_tcommit(void);
                     84: extern int tp_cleanup(int levels);
                     85: extern int tp_trollback(int levels);
                     86: extern int tp_trestart(void);
                     87: extern void tp_tdump(void);
                     88: extern void tp_get_op_name(char *buf, const short action);
                     89: