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1.1 ! root 1: /* ringbuf.h */ ! 2: ! 3: /* Synchronet ring buffer routines */ ! 4: ! 5: /* $Id: ringbuf.h,v 1.2 2000/10/21 02:58:16 rswindell Exp $ */ ! 6: ! 7: /**************************************************************************** ! 8: * @format.tab-size 4 (Plain Text/Source Code File Header) * ! 9: * @format.use-tabs true (see http://www.synchro.net/ptsc_hdr.html) * ! 10: * * ! 11: * Copyright 2000 Rob Swindell - http://www.synchro.net/copyright.html * ! 12: * * ! 13: * This program is free software; you can redistribute it and/or * ! 14: * modify it under the terms of the GNU General Public License * ! 15: * as published by the Free Software Foundation; either version 2 * ! 16: * of the License, or (at your option) any later version. * ! 17: * See the GNU General Public License for more details: gpl.txt or * ! 18: * http://www.fsf.org/copyleft/gpl.html * ! 19: * * ! 20: * Anonymous FTP access to the most recent released source is available at * ! 21: * ftp://vert.synchro.net, ftp://cvs.synchro.net and ftp://ftp.synchro.net * ! 22: * * ! 23: * Anonymous CVS access to the development source and modification history * ! 24: * is available at cvs.synchro.net:/cvsroot/sbbs, example: * ! 25: * cvs -d :pserver:[email protected]:/cvsroot/sbbs login * ! 26: * (just hit return, no password is necessary) * ! 27: * cvs -d :pserver:[email protected]:/cvsroot/sbbs checkout src * ! 28: * * ! 29: * For Synchronet coding style and modification guidelines, see * ! 30: * http://www.synchro.net/source.html * ! 31: * * ! 32: * You are encouraged to submit any modifications (preferably in Unix diff * ! 33: * format) via e-mail to [email protected] * ! 34: * * ! 35: * Note: If this box doesn't appear square, then you need to fix your tabs. * ! 36: ****************************************************************************/ ! 37: ! 38: ! 39: // Pre-define RINGBUF_USE_STD_RTL to use standard C runtime library symbols ! 40: // for malloc, free, and memcpy ! 41: ! 42: #ifndef _RINGBUF_H_ ! 43: #define _RINGBUF_H_ ! 44: ! 45: #ifndef DWORD ! 46: #define DWORD unsigned long ! 47: #endif ! 48: ! 49: #ifndef BYTE ! 50: #define BYTE unsigned char ! 51: #endif ! 52: ! 53: #ifndef NULL ! 54: #define NULL 0 ! 55: #endif ! 56: ! 57: #define RINGBUF_USE_STD_RTL ! 58: ! 59: #if defined(_WIN32) && !defined(__GNUC__) ! 60: #define RINGBUFCALL _cdecl ! 61: #else ! 62: #define RINGBUFCALL ! 63: #endif ! 64: ! 65: /************/ ! 66: /* Typedefs */ ! 67: /************/ ! 68: ! 69: typedef struct { ! 70: ! 71: BYTE* pStart; /* buffer must be accessable at interrupt time */ ! 72: BYTE* pHead; /* next space available for data */ ! 73: BYTE* pTail; /* next byte to be consumed */ ! 74: BYTE* pEnd; /* end of the buffer, used for wrap around */ ! 75: DWORD size; ! 76: ! 77: } RingBuf; ! 78: ! 79: #ifdef __cplusplus ! 80: extern "C" { ! 81: #endif ! 82: ! 83: /***********************/ ! 84: /* Function Prototypes */ ! 85: /***********************/ ! 86: ! 87: int RINGBUFCALL RingBufInit( RingBuf* rb, DWORD size ! 88: #ifndef RINGBUF_USE_STD_RTL ! 89: ,void *(os_malloc)(size_t) ! 90: ,void (os_free)(void *) ! 91: ,void *(os_memcpy)(void *, const void *, size_t) ! 92: #endif ! 93: ); ! 94: void RINGBUFCALL RingBufDispose( RingBuf* rb ); ! 95: DWORD RINGBUFCALL RingBufFull( RingBuf* rb ); ! 96: DWORD RINGBUFCALL RingBufFree( RingBuf* rb ); ! 97: DWORD RINGBUFCALL RingBufWrite( RingBuf* rb, BYTE *src, DWORD cnt ); ! 98: DWORD RINGBUFCALL RingBufRead( RingBuf* rb, BYTE *dst, DWORD cnt ); ! 99: DWORD RINGBUFCALL RingBufPeek( RingBuf* rb, BYTE *dst, DWORD cnt ); ! 100: void RINGBUFCALL RingBufReInit( RingBuf* rb ); ! 101: ! 102: #ifdef __cplusplus ! 103: } ! 104: #endif ! 105: ! 106: #endif // Don't add anything afterthis endif
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