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1.1 root 1: /* comio.c */
2:
3: /* Synchronet Serial Communications I/O Library Common Functions */
4:
5: /* $Id: comio.c,v 1.1 2007/04/21 01:36:35 rswindell Exp $ */
6:
7: /****************************************************************************
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10: * *
11: * Copyright 2007 Rob Swindell - http://www.synchro.net/copyright.html *
12: * *
13: * This library is free software; you can redistribute it and/or *
14: * modify it under the terms of the GNU Lesser 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 Lesser General Public License for more details: lgpl.txt or *
18: * http://www.fsf.org/copyleft/lesser.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 *
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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: #include "comio.h"
39: #include "genwrap.h" /* msclock */
40:
41: size_t comReadBuf(COM_HANDLE handle, char* buf, size_t buflen, const char* terminators, int timeout)
42: {
43: BYTE ch;
44: size_t len=0;
45: msclock_t start=msclock();
46:
47: while(len < buflen) {
48: if(!comReadByte(handle, &ch)) {
49: if(msclock()-start >= timeout)
50: break;
51: YIELD();
52: continue;
53: }
54: if(len && terminators!=NULL && strchr(terminators, ch)!=NULL)
55: break;
56: buf[len++]=ch;
57: }
58:
59: return len;
60: }
61:
62: size_t comReadLine(COM_HANDLE handle, char* buf, size_t buflen, int timeout)
63: {
64: size_t len;
65:
66: len=comReadBuf(handle, buf, buflen-1, "\n", timeout);
67:
68: buf[len]=0;
69:
70: return len;
71: }
72:
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