Rev 613 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
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| 613 | serge | 1 | /**************************************************************************** |
| 2 | * |
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| 3 | * Open Watcom Project |
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| 4 | * |
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| 5 | * Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved. |
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| 6 | * |
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| 7 | * ======================================================================== |
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| 8 | * |
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| 9 | * This file contains Original Code and/or Modifications of Original |
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| 10 | * Code as defined in and that are subject to the Sybase Open Watcom |
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| 11 | * Public License version 1.0 (the 'License'). You may not use this file |
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| 12 | * except in compliance with the License. BY USING THIS FILE YOU AGREE TO |
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| 13 | * ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is |
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| 14 | * provided with the Original Code and Modifications, and is also |
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| 15 | * available at www.sybase.com/developer/opensource. |
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| 16 | * |
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| 17 | * The Original Code and all software distributed under the License are |
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| 18 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
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| 19 | * EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM |
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| 20 | * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF |
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| 21 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR |
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| 22 | * NON-INFRINGEMENT. Please see the License for the specific language |
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| 23 | * governing rights and limitations under the License. |
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| 24 | * |
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| 25 | * ======================================================================== |
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| 26 | * |
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| 27 | * Description: WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE |
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| 28 | * DESCRIBE IT HERE! |
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| 29 | * |
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| 30 | ****************************************************************************/ |
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| 31 | |||
| 32 | |||
| 33 | #include "variety.h" |
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| 34 | #include |
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| 35 | #include |
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| 36 | |||
| 37 | #include "iomode.h" |
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| 38 | #include "fileacc.h" |
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| 39 | #include "rtcheck.h" |
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| 40 | #include "rtdata.h" |
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| 41 | #include "seterrno.h" |
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| 42 | #include "qwrite.h" |
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| 43 | #include "liballoc.h" |
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| 711 | serge | 44 | #include "kolibri.h" |
| 613 | serge | 45 | |
| 46 | /* |
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| 47 | Use caution when setting the file pointer in a multithreaded |
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| 48 | application. You must synchronize access to shared resources. For |
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| 49 | example, an application whose threads share a file handle, update the |
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| 50 | file pointer, and read from the file must protect this sequence by |
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| 51 | using a critical section object or a mutex object. |
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| 52 | */ |
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| 53 | |||
| 54 | typedef struct |
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| 55 | { |
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| 56 | char *name; |
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| 57 | unsigned int offset; |
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| 58 | }__file_handle; |
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| 59 | |||
| 60 | char* getfullpath(const char* path); |
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| 61 | |||
| 62 | int __qwrite( int handle, const void *buffer, unsigned len ) |
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| 63 | { |
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| 64 | int atomic; |
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| 65 | __file_handle *fh; |
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| 66 | unsigned len_written; |
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| 67 | |||
| 68 | __handle_check( handle, -1 ); |
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| 69 | |||
| 70 | fh = (__file_handle*) __getOSHandle( handle ); |
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| 71 | |||
| 72 | atomic = 0; |
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| 73 | if( __GetIOMode( handle ) & _APPEND ) |
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| 74 | { |
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| 75 | FILEINFO info; |
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| 76 | |||
| 77 | _AccessFileH( handle ); |
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| 78 | atomic = 1; |
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| 79 | get_fileinfo(fh->name,&info); |
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| 80 | fh->offset = info.size; |
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| 81 | }; |
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| 82 | |||
| 83 | if(write_file(fh->name,buffer,fh->offset,len,&len_written)) |
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| 84 | { |
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| 85 | if ( len_written == 0) |
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| 86 | { |
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| 87 | if( atomic == 1 ) |
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| 88 | _ReleaseFileH( handle ); |
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| 89 | |||
| 90 | return (-1); |
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| 91 | }; |
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| 92 | }; |
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| 93 | |||
| 94 | fh->offset+=len_written; |
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| 95 | |||
| 96 | |||
| 97 | if( atomic == 1 ) |
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| 98 | { |
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| 99 | _ReleaseFileH( handle ); |
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| 100 | } |
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| 101 | return( len_written ); |
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| 102 | } |
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| 103 | |||
| 104 | /******************** |
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| 105 | int write_once(const char *name, void *buffer, unsigned len) |
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| 106 | { char *path; |
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| 107 | unsigned count; |
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| 108 | |||
| 109 | path= getfullpath(name); |
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| 110 | write_file(path,buffer,0,len,&count); |
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| 111 | lib_free(path); |
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| 112 | return count; |
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| 113 | |||
| 114 | } |
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| 115 | |||
| 116 | *******************/ |