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Annotation of freem/src/locktab.h, revision 1.1.1.1

1.1       snw         1: /*
                      2:  *                            *
                      3:  *                           * *
                      4:  *                          *   *
                      5:  *                     ***************
                      6:  *                      * *       * *
                      7:  *                       *  MUMPS  *
                      8:  *                      * *       * *
                      9:  *                     ***************
                     10:  *                          *   *
                     11:  *                           * *
                     12:  *                            *
                     13:  *
                     14:  *   locktab.h
                     15:  *    lock table data structures
                     16:  *
                     17:  *  
                     18:  *   Author: Serena Willis <jpw@coherent-logic.com>
                     19:  *    Copyright (C) 1998 MUG Deutschland
                     20:  *    Copyright (C) 2021 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: #if !defined(__FREEM_LOCKTAB_H)
                     41: # define __FREEM_LOCKTAB_H
                     42: 
                     43: #define NREF_MAXLEN 800
                     44: 
                     45: typedef struct locktab_ent_t {
                     46: 
                     47:     char namespace[255];
                     48:     char nref[NREF_MAXLEN];
                     49: 
                     50:     int tp_level;
                     51:     pid_t owner_job;
                     52:     int ct;
                     53:     
                     54:     struct locktab_ent_t *next;
                     55:     
                     56: } locktab_ent_t;
                     57: 
                     58: /* function prototypes */
                     59: extern void locktab_init(void);
                     60: extern void lock(char *lockarg, long time_out, char type);
                     61: extern void locktab_increment(char *key, long lck_timeout, short old_lock);
                     62: extern void locktab_decrement(char *key, long lck_timeout);
                     63: extern void locktab_unlock_all(void);
                     64: extern locktab_ent_t *locktab_find(char *key);
                     65: extern locktab_ent_t *locktab_insert(char *key);
                     66: extern int locktab_count(char *key);
                     67: extern unsigned long locktab_pages(void);
                     68: extern unsigned long locktab_bytes(void);
                     69: extern short locktab_get_sem(void);
                     70: extern void locktab_release_sem(void);
                     71: extern void locktab_dump(void);
                     72: 
                     73: #endif