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

1.1       snw         1: /*
                      2:  *                            *
                      3:  *                           * *
                      4:  *                          *   *
                      5:  *                     ***************
                      6:  *                      * *       * *
                      7:  *                       *  MUMPS  *
                      8:  *                      * *       * *
                      9:  *                     ***************
                     10:  *                          *   *
                     11:  *                           * *
                     12:  *                            *
                     13:  *
                     14:  *   events.h
                     15:  *    event framework
                     16:  *
                     17:  *  
                     18:  *   Author: Serena Willis <jpw@coherent-logic.com>
                     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: #if !defined(_EVENTS_H)
                     41: #define _EVENTS_H
                     42: 
                     43: #include "freem.h"
                     44: #include "mref.h"
                     45: 
                     46: #define EVT_QLENGTH 255
                     47: #define EVT_MAX 9
                     48: 
                     49: #define EVT_CLS_COMM 0                          /* Device events */
                     50: #define EVT_CLS_HALT 1                          /* Process halted */
                     51: #define EVT_CLS_IPC 2                           /* IPC received */
                     52: #define EVT_CLS_INTERRUPT 3                     /* Interrupt received */
                     53: #define EVT_CLS_POWER 4                         /* Power fail eminent */
                     54: #define EVT_CLS_TIMER 5                         /* Timer interval expired */
                     55: #define EVT_CLS_USER 6                          /* User-defined (ETRIGGER) events */
                     56: #define EVT_CLS_WAPI 7                          /* MWAPI (synchronous only) */
                     57: #define EVT_CLS_TRIGGER 8                       /* Database triggers */
                     58: 
                     59: #define EVT_S_NOMODIFY -1
                     60: #define EVT_S_DISABLED 0
                     61: #define EVT_S_ASYNC 1
                     62: #define EVT_S_SYNC 2
                     63: 
                     64: typedef struct evt_entry {
                     65: 
                     66:     char event_id[256];                         /* Event identifier */
                     67:     short evt_class;                            /* EVT_CLS_* */
                     68: 
                     69: } evt_entry;
                     70: 
                     71: typedef struct evt_status_t {
                     72: 
                     73:     short comm;
                     74:     short halt;
                     75:     short ipc;
                     76:     short interrupt;
                     77:     short power;
                     78:     short timer;
                     79:     short user;
                     80:     short wapi;
                     81:     short trigger;
                     82:     
                     83: } evt_status_t;
                     84: 
                     85: extern short evt_async_enabled;
                     86: extern short evt_async_restore;
                     87: extern short evt_async_initial;
                     88: 
                     89: extern short evt_queue_rear;
                     90: extern short evt_queue_front;
                     91: extern evt_entry *evt_queue[];
                     92: extern short evt_status[]; 
                     93: extern int evt_blocks[EVT_MAX];
                     94: extern int evt_depth;
                     95: 
                     96: extern int pending_signal_type;
                     97: 
                     98: /* evt_init(): initialize event framework */
                     99: extern void evt_init (void);
                    100: 
                    101: extern int evt_ablock (short evt_class);
                    102: extern int evt_aunblock (short evt_class);
                    103: 
                    104: /* evt_enqueue(): enqueue an event. interrupt should be non-zero if you wish to immediately interrupt the interpreter */
                    105: extern int evt_enqueue (char *event_id, short evt_class, short interrupt);
                    106: extern evt_entry *evt_dequeue (void);
                    107: extern char *evt_class_name (evt_entry *e);
                    108: extern char *evt_class_name_c (int c);
                    109: extern int evt_get_handlers (char *buf);
                    110: extern short evt_registered(char *event_id, short evt_class);
                    111: 
                    112: #endif