| 1 | /* -*-c-*- |
| 2 | * |
| 3 | * $Id: sig.h,v 1.2 1999/12/10 23:42:04 mdw Exp $ |
| 4 | * |
| 5 | * Signal handling |
| 6 | * |
| 7 | * (c) 1999 Straylight/Edgeware |
| 8 | */ |
| 9 | |
| 10 | /*----- Licensing notice --------------------------------------------------* |
| 11 | * |
| 12 | * This file is part of the mLib utilities library. |
| 13 | * |
| 14 | * mLib is free software; you can redistribute it and/or modify |
| 15 | * it under the terms of the GNU Library General Public License as |
| 16 | * published by the Free Software Foundation; either version 2 of the |
| 17 | * License, or (at your option) any later version. |
| 18 | * |
| 19 | * mLib 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 Library General Public License for more details. |
| 23 | * |
| 24 | * You should have received a copy of the GNU Library General Public |
| 25 | * License along with mLib; if not, write to the Free |
| 26 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
| 27 | * MA 02111-1307, USA. |
| 28 | */ |
| 29 | |
| 30 | /*----- Revision history --------------------------------------------------* |
| 31 | * |
| 32 | * $Log: sig.h,v $ |
| 33 | * Revision 1.2 1999/12/10 23:42:04 mdw |
| 34 | * Change header file guard names. |
| 35 | * |
| 36 | * Revision 1.1 1999/07/26 23:16:26 mdw |
| 37 | * Signal handling integrated into I/O system. |
| 38 | * |
| 39 | */ |
| 40 | |
| 41 | #ifndef MLIB_SIG_H |
| 42 | #define MLIB_SIG_H |
| 43 | |
| 44 | #ifdef __cplusplus |
| 45 | extern "C" { |
| 46 | #endif |
| 47 | |
| 48 | /*----- Header files ------------------------------------------------------*/ |
| 49 | |
| 50 | #include <signal.h> |
| 51 | |
| 52 | #include "sel.h" |
| 53 | |
| 54 | /*----- Data structures ---------------------------------------------------*/ |
| 55 | |
| 56 | typedef struct sig { |
| 57 | struct sig *next; |
| 58 | struct sig *prev; |
| 59 | int sig; |
| 60 | void (*proc)(int /*n*/, void */*p*/); |
| 61 | void *p; |
| 62 | } sig; |
| 63 | |
| 64 | /*----- Functions provided ------------------------------------------------*/ |
| 65 | |
| 66 | /* --- @sig_add@ --- * |
| 67 | * |
| 68 | * Arguments: @sig *s@ = pointer to signal handler block |
| 69 | * @int n@ = number of the signal |
| 70 | * @void (*proc)(int n, void *p)@ = signal handler function |
| 71 | * @void *p@ = argument to pass to handler |
| 72 | * |
| 73 | * Returns: --- |
| 74 | * |
| 75 | * Use: Adds a signal handler. |
| 76 | */ |
| 77 | |
| 78 | extern void sig_add(sig */*s*/, int /*n*/, |
| 79 | void (*/*proc*/)(int /*n*/, void */*p*/), void */*p*/); |
| 80 | |
| 81 | /* --- @sig_remove@ --- * |
| 82 | * |
| 83 | * Arguments: @sig *s@ = pointer to signal handler block |
| 84 | * |
| 85 | * Returns: --- |
| 86 | * |
| 87 | * Use: Removes the signal handler from the list. |
| 88 | */ |
| 89 | |
| 90 | extern void sig_remove(sig */*s*/); |
| 91 | |
| 92 | /* --- @sig_init@ --- * |
| 93 | * |
| 94 | * Arguments: @sel_state *s@ = pointer to select state |
| 95 | * |
| 96 | * Returns: --- |
| 97 | * |
| 98 | * Use: Initializes the signal handling system ready for use. |
| 99 | */ |
| 100 | |
| 101 | extern void sig_init(sel_state */*s*/); |
| 102 | |
| 103 | /*----- That's all, folks -------------------------------------------------*/ |
| 104 | |
| 105 | #ifdef __cplusplus |
| 106 | } |
| 107 | #endif |
| 108 | |
| 109 | #endif |