[590] | 1 | //vio.c: |
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| 2 | |
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[690] | 3 | /* |
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[1284] | 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008, 2009 |
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[690] | 5 | * |
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| 6 | * This file is part of libroar a part of RoarAudio, |
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| 7 | * a cross-platform sound system for both, home and professional use. |
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| 8 | * See README for details. |
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| 9 | * |
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| 10 | * This file is free software; you can redistribute it and/or modify |
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| 11 | * it under the terms of the GNU General Public License version 3 |
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| 12 | * as published by the Free Software Foundation. |
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| 13 | * |
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| 14 | * libroar is distributed in the hope that it will be useful, |
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| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 17 | * GNU General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU General Public License |
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| 20 | * along with this software; see the file COPYING. If not, write to |
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| 21 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 22 | * |
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| 23 | * NOTE for everyone want's to change something and send patches: |
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| 24 | * read README and HACKING! There a addition information on |
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| 25 | * the license of this document you need to read before you send |
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| 26 | * any patches. |
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| 27 | * |
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| 28 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
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| 29 | * or libpulse*: |
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| 30 | * The libs libroaresd, libroararts and libroarpulse link this lib |
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| 31 | * and are therefore GPL. Because of this it may be illigal to use |
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| 32 | * them with any software that uses libesd, libartsc or libpulse*. |
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| 33 | */ |
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| 34 | |
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[590] | 35 | #include "libroar.h" |
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| 36 | |
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[1474] | 37 | #ifdef ROAR_HAVE_IO_POSIX |
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| 38 | #define _CAN_OPERATE |
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| 39 | #endif |
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| 40 | |
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[591] | 41 | int roar_vio_init_calls (struct roar_vio_calls * calls) { |
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[1474] | 42 | #ifdef _CAN_OPERATE |
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[1118] | 43 | if ( calls == NULL ) |
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[591] | 44 | return -1; |
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| 45 | |
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| 46 | memset((void*)calls, 0, sizeof(struct roar_vio_calls)); |
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| 47 | |
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[881] | 48 | /* |
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[597] | 49 | calls->read = (ssize_t (*)(int fd, void *buf, size_t count, void * inst))read; |
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| 50 | calls->write = (ssize_t (*)(int fd, void *buf, size_t count, void * inst))write; |
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| 51 | calls->lseek = (off_t (*)(int fildes, off_t offset, int whence, void * inst))lseek; |
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[881] | 52 | */ |
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| 53 | |
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[1118] | 54 | calls->read = roar_vio_basic_read; |
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| 55 | calls->write = roar_vio_basic_write; |
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| 56 | calls->lseek = roar_vio_basic_lseek; |
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| 57 | calls->nonblock = roar_vio_basic_nonblock; |
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| 58 | calls->sync = roar_vio_basic_sync; |
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[1505] | 59 | calls->ctl = roar_vio_basic_ctl; |
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[1241] | 60 | calls->close = roar_vio_basic_close; |
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[881] | 61 | |
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| 62 | return 0; |
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[1474] | 63 | #else |
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| 64 | return -1; |
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| 65 | #endif |
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[881] | 66 | } |
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| 67 | |
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| 68 | int roar_vio_set_inst (struct roar_vio_calls * vio, void * inst) { |
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| 69 | if ( vio == NULL ) |
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| 70 | return -1; |
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| 71 | |
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| 72 | vio->inst = inst; |
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[591] | 73 | |
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| 74 | return 0; |
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| 75 | } |
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| 76 | |
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[881] | 77 | int roar_vio_set_fh (struct roar_vio_calls * vio, int fh) { |
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[989] | 78 | return roar_vio_set_inst(vio, (void*)(ROAR_INSTINT)(fh + 1)); |
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[881] | 79 | } |
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| 80 | |
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| 81 | int roar_vio_get_fh (struct roar_vio_calls * vio) { |
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| 82 | if ( vio == NULL ) |
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| 83 | return -1; |
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| 84 | |
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[989] | 85 | return ((int)(ROAR_INSTINT)vio->inst) - 1; |
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[881] | 86 | } |
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| 87 | |
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| 88 | |
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| 89 | ssize_t roar_vio_read (struct roar_vio_calls * vio, void *buf, size_t count) { |
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[1319] | 90 | ROAR_DBG("roar_vio_read(vio=%p, buf=%p, count=%u) = ?", vio, buf, (unsigned int)count); |
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| 91 | |
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[881] | 92 | if ( vio == NULL ) |
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| 93 | return -1; |
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| 94 | |
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| 95 | if ( vio->read == NULL ) |
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| 96 | return -1; |
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| 97 | |
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| 98 | return vio->read(vio, buf, count); |
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| 99 | } |
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| 100 | |
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| 101 | ssize_t roar_vio_write(struct roar_vio_calls * vio, void *buf, size_t count) { |
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| 102 | if ( vio == NULL ) |
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| 103 | return -1; |
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| 104 | |
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| 105 | if ( vio->write == NULL ) |
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| 106 | return -1; |
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| 107 | |
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| 108 | return vio->write(vio, buf, count); |
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| 109 | } |
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| 110 | |
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| 111 | off_t roar_vio_lseek(struct roar_vio_calls * vio, off_t offset, int whence) { |
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| 112 | if ( vio == NULL ) |
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| 113 | return -1; |
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| 114 | |
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| 115 | if ( vio->lseek == NULL ) |
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| 116 | return -1; |
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| 117 | |
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| 118 | return vio->lseek(vio, offset, whence); |
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| 119 | } |
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| 120 | |
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[1118] | 121 | int roar_vio_nonblock(struct roar_vio_calls * vio, int state) { |
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| 122 | if ( vio == NULL ) |
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| 123 | return -1; |
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| 124 | |
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| 125 | if ( vio->nonblock == NULL ) |
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| 126 | return -1; |
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| 127 | |
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| 128 | return vio->nonblock(vio, state); |
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| 129 | } |
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| 130 | |
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| 131 | int roar_vio_sync (struct roar_vio_calls * vio) { |
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| 132 | if ( vio == NULL ) |
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| 133 | return -1; |
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| 134 | |
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| 135 | if ( vio->sync == NULL ) |
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| 136 | return -1; |
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| 137 | |
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| 138 | return vio->sync(vio); |
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| 139 | } |
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| 140 | |
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[1140] | 141 | int roar_vio_ctl (struct roar_vio_calls * vio, int cmd, void * data) { |
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| 142 | if ( vio == NULL ) |
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| 143 | return -1; |
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| 144 | |
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[1615] | 145 | ROAR_DBG("roar_vio_ctl(vio=%p, cmd=0x%.8x, data=%p): vio->ctl=%p", vio, cmd, data, vio->ctl); |
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| 146 | |
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[1140] | 147 | if ( vio->ctl == NULL ) |
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| 148 | return -1; |
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| 149 | |
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| 150 | return vio->ctl(vio, cmd, data); |
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| 151 | } |
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| 152 | |
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[1241] | 153 | int roar_vio_close (struct roar_vio_calls * vio) { |
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| 154 | if ( vio == NULL ) |
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| 155 | return -1; |
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| 156 | |
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[1258] | 157 | if ( vio->close == NULL ) |
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[1241] | 158 | return -1; |
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| 159 | |
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| 160 | return vio->close(vio); |
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| 161 | } |
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| 162 | |
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[1314] | 163 | int roar_vio_putc (struct roar_vio_calls * vio, char c) { |
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| 164 | return roar_vio_write(vio, &c, 1); |
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| 165 | } |
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| 166 | |
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| 167 | int roar_vio_getc (struct roar_vio_calls * vio) { |
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| 168 | unsigned char c; |
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| 169 | |
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| 170 | if ( roar_vio_read(vio, &c, 1) != 1 ) |
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| 171 | return EOF; |
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| 172 | |
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| 173 | return c; |
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| 174 | } |
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| 175 | |
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[1351] | 176 | int roar_vio_printf(struct roar_vio_calls * vio, const char *format, ...) { |
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| 177 | va_list ap; |
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| 178 | int ret; |
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| 179 | char buf[8192]; |
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| 180 | |
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| 181 | va_start(ap, format); |
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| 182 | ret = vsnprintf(buf, 8192, format, ap); |
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| 183 | va_end(ap); |
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| 184 | |
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| 185 | return roar_vio_write(vio, buf, ret); |
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| 186 | } |
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| 187 | |
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[1252] | 188 | // converters: |
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| 189 | int roar_vio_open_file (struct roar_vio_calls * calls, char * filename, int flags, mode_t mode) { |
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[1474] | 190 | #ifdef _CAN_OPERATE |
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[1252] | 191 | int fh; |
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| 192 | |
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| 193 | if ( calls == NULL || filename == NULL ) |
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| 194 | return -1; |
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| 195 | |
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[1762] | 196 | #ifdef ROAR_TARGET_WIN32 |
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| 197 | flags |= O_BINARY; |
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| 198 | #endif |
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| 199 | |
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[1252] | 200 | if ( (fh = open(filename, flags, mode)) == -1 ) |
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| 201 | return -1; |
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| 202 | |
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| 203 | if ( roar_vio_open_fh(calls, fh) == -1 ) { |
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| 204 | close(fh); |
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| 205 | return -1; |
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| 206 | } |
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| 207 | |
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| 208 | return 0; |
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[1474] | 209 | #else |
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| 210 | return -1; |
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| 211 | #endif |
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[1252] | 212 | } |
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| 213 | |
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| 214 | int roar_vio_open_fh (struct roar_vio_calls * calls, int fh) { |
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| 215 | if ( calls == NULL ) |
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| 216 | return -1; |
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| 217 | |
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| 218 | if ( roar_vio_init_calls(calls) == -1 ) |
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| 219 | return -1; |
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| 220 | |
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| 221 | return roar_vio_set_fh(calls, fh); |
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| 222 | } |
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| 223 | |
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[1290] | 224 | int roar_vio_open_fh_socket(struct roar_vio_calls * calls, int fh) { |
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| 225 | if ( calls == NULL ) |
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| 226 | return -1; |
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| 227 | |
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[1666] | 228 | if ( roar_vio_open_fh(calls, fh) == -1 ) |
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| 229 | return -1; |
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| 230 | |
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[1760] | 231 | #ifdef ROAR_TARGET_WIN32 |
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| 232 | calls->read = roar_vio_winsock_read; |
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| 233 | calls->write = roar_vio_winsock_write; |
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| 234 | calls->nonblock = roar_vio_winsock_nonblock; |
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| 235 | calls->sync = roar_vio_winsock_sync; |
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| 236 | calls->ctl = roar_vio_winsock_ctl; |
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| 237 | calls->close = roar_vio_winsock_close; |
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| 238 | #else |
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| 239 | calls->sync = roar_vio_null_sync; |
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| 240 | #endif |
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[1666] | 241 | |
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| 242 | return 0; |
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[1290] | 243 | } |
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| 244 | |
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[1291] | 245 | int roar_vio_open_socket (struct roar_vio_calls * calls, char * host, int port) { |
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| 246 | int fh; |
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| 247 | |
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| 248 | if ( calls == NULL ) |
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| 249 | return -1; |
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| 250 | |
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| 251 | if ( (fh = roar_socket_connect(host, port)) == -1 ) |
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| 252 | return -1; |
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| 253 | |
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| 254 | return roar_vio_open_fh_socket(calls, fh); |
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| 255 | } |
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| 256 | |
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| 257 | int roar_vio_open_socket_listen(struct roar_vio_calls * calls, int type, char * host, int port) { |
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| 258 | int fh; |
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| 259 | |
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| 260 | if ( calls == NULL ) |
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| 261 | return -1; |
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| 262 | |
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| 263 | if ( (fh = roar_socket_listen(type, host, port)) == -1 ) |
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| 264 | return -1; |
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| 265 | |
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| 266 | return roar_vio_open_fh_socket(calls, fh); |
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| 267 | } |
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| 268 | |
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[1275] | 269 | int roar_vio_simple_stream (struct roar_vio_calls * calls, int rate, int channels, int bits, int codec, |
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| 270 | char * server, int dir, char * name) { |
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| 271 | int fh; |
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| 272 | |
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| 273 | if ( calls == NULL ) |
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| 274 | return -1; |
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| 275 | |
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| 276 | if ( (fh = roar_simple_stream(rate, channels, bits, codec, server, dir, name)) == -1 ) |
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| 277 | return -1; |
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| 278 | |
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[1290] | 279 | return roar_vio_open_fh_socket(calls, fh); |
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[1275] | 280 | } |
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| 281 | |
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| 282 | |
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[1252] | 283 | int roar_vio_open_stdio (struct roar_vio_calls * calls, FILE * dst) { |
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[1376] | 284 | #ifndef ROAR_WITHOUT_VIO_STDIO |
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[1252] | 285 | if ( calls == NULL || dst == NULL ) |
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| 286 | return -1; |
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| 287 | |
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[1253] | 288 | memset(calls, 0, sizeof(struct roar_vio_calls)); |
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| 289 | |
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| 290 | calls->read = roar_vio_stdio_read; |
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| 291 | calls->write = roar_vio_stdio_write; |
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| 292 | calls->lseek = roar_vio_stdio_lseek; |
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| 293 | calls->sync = roar_vio_stdio_sync; |
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| 294 | calls->close = roar_vio_stdio_close; |
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| 295 | |
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| 296 | calls->inst = dst; |
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| 297 | |
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| 298 | return 0; |
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[1376] | 299 | #else |
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| 300 | return -1; |
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| 301 | #endif |
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[1252] | 302 | } |
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| 303 | |
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| 304 | FILE * roar_vio_to_stdio (struct roar_vio_calls * calls, int flags) { |
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| 305 | #ifdef ROAR_HAVE_FOPENCOOKIE |
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| 306 | cookie_io_functions_t foc_funcs; |
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| 307 | #endif |
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| 308 | |
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| 309 | if ( calls == NULL ) |
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| 310 | return NULL; |
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| 311 | |
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| 312 | #if defined(ROAR_HAVE_FOPENCOOKIE) |
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| 313 | memset(&foc_funcs, 0, sizeof(cookie_io_functions_t)); |
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| 314 | |
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[1293] | 315 | foc_funcs.close = roar_vio_to_stdio_close; |
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| 316 | foc_funcs.read = roar_vio_to_stdio_read; |
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| 317 | foc_funcs.write = roar_vio_to_stdio_write; |
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| 318 | |
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[1252] | 319 | return fopencookie((void*) calls, "rw", foc_funcs); |
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| 320 | #elif defined(ROAR_HAVE_FUNOPEN) |
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[1293] | 321 | return funopen((void*) calls, roar_vio_to_stdio_read, roar_vio_to_stdio_write, |
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| 322 | roar_vio_to_stdio_lseek, roar_vio_to_stdio_close); |
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[1252] | 323 | #else |
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| 324 | return NULL; |
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| 325 | #endif |
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| 326 | } |
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| 327 | |
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[1293] | 328 | #if defined(ROAR_HAVE_FOPENCOOKIE) || defined(ROAR_HAVE_FUNOPEN) |
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| 329 | int roar_vio_to_stdio_close (void *__cookie) { |
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| 330 | return roar_vio_close((struct roar_vio_calls *) __cookie); |
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| 331 | } |
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| 332 | |
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| 333 | #if defined(ROAR_HAVE_FOPENCOOKIE) |
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| 334 | __ssize_t roar_vio_to_stdio_read (void *__cookie, char *__buf, size_t __nbytes) { |
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| 335 | #elif defined(ROAR_HAVE_FUNOPEN) |
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| 336 | int roar_vio_to_stdio_read(void *__cookie, char *__buf, int __nbytes) { |
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| 337 | #endif |
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| 338 | return roar_vio_read((struct roar_vio_calls *) __cookie, __buf, __nbytes); |
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| 339 | } |
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| 340 | |
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| 341 | #if defined(ROAR_HAVE_FOPENCOOKIE) |
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| 342 | __ssize_t roar_vio_to_stdio_write (void *__cookie, __const char *__buf, size_t __n) { |
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| 343 | #elif defined(ROAR_HAVE_FUNOPEN) |
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| 344 | int roar_vio_to_stdio_write(void *__cookie, const char *__buf, int __n) { |
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| 345 | #endif |
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| 346 | return roar_vio_write((struct roar_vio_calls *) __cookie, (char *) __buf, __n); |
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| 347 | } |
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| 348 | |
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| 349 | #if defined(ROAR_HAVE_FOPENCOOKIE) |
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| 350 | int roar_vio_to_stdio_lseek (void *__cookie, _IO_off64_t *__pos, int __w); |
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| 351 | #elif defined(ROAR_HAVE_FUNOPEN) |
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| 352 | fpos_t roar_vio_to_stdio_lseek(void *__cookie, fpos_t __pos, int __w) { |
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| 353 | return roar_vio_lseek((struct roar_vio_calls *) __cookie, __pos, __w); |
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| 354 | } |
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| 355 | #endif |
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[1376] | 356 | #endif |
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[1293] | 357 | |
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[886] | 358 | // VIOs: |
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[881] | 359 | |
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[886] | 360 | // basic |
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[881] | 361 | ssize_t roar_vio_basic_read (struct roar_vio_calls * vio, void *buf, size_t count) { |
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[1474] | 362 | #ifdef _CAN_OPERATE |
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[881] | 363 | return read(roar_vio_get_fh(vio), buf, count); |
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[1474] | 364 | #else |
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| 365 | return -1; |
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| 366 | #endif |
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[881] | 367 | } |
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| 368 | |
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| 369 | ssize_t roar_vio_basic_write(struct roar_vio_calls * vio, void *buf, size_t count) { |
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[1474] | 370 | #ifdef _CAN_OPERATE |
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[881] | 371 | return write(roar_vio_get_fh(vio), buf, count); |
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[1474] | 372 | #else |
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| 373 | return -1; |
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| 374 | #endif |
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[881] | 375 | } |
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| 376 | |
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| 377 | off_t roar_vio_basic_lseek(struct roar_vio_calls * vio, off_t offset, int whence) { |
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[1474] | 378 | #ifdef _CAN_OPERATE |
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[881] | 379 | return lseek(roar_vio_get_fh(vio), offset, whence); |
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[1474] | 380 | #else |
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| 381 | return -1; |
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| 382 | #endif |
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[881] | 383 | } |
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| 384 | |
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[1118] | 385 | int roar_vio_basic_nonblock(struct roar_vio_calls * vio, int state) { |
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| 386 | if ( roar_socket_nonblock(roar_vio_get_fh(vio), state) == -1 ) |
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| 387 | return -1; |
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| 388 | |
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| 389 | if ( state == ROAR_SOCKET_NONBLOCK ) |
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| 390 | return 0; |
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| 391 | |
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[1125] | 392 | roar_vio_sync(vio); |
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| 393 | |
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| 394 | return 0; |
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[1118] | 395 | } |
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| 396 | |
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| 397 | int roar_vio_basic_sync (struct roar_vio_calls * vio) { |
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[1397] | 398 | #ifdef ROAR_FDATASYNC |
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[1171] | 399 | return ROAR_FDATASYNC(roar_vio_get_fh(vio)); |
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[1397] | 400 | #else |
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| 401 | return 0; |
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| 402 | #endif |
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[1118] | 403 | } |
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| 404 | |
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[1505] | 405 | int roar_vio_basic_ctl (struct roar_vio_calls * vio, int cmd, void * data) { |
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| 406 | |
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| 407 | if ( vio == NULL || cmd == -1 ) |
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| 408 | return -1; |
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| 409 | |
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[1615] | 410 | ROAR_DBG("roar_vio_basic_ctl(vio=%p, cmd=0x%.8x, data=%p) = ?", vio, cmd, data); |
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| 411 | |
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[1505] | 412 | switch (cmd) { |
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| 413 | case ROAR_VIO_CTL_GET_FH: |
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| 414 | case ROAR_VIO_CTL_GET_READ_FH: |
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| 415 | case ROAR_VIO_CTL_GET_WRITE_FH: |
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[1615] | 416 | ROAR_DBG("roar_vio_basic_ctl(vio=%p, cmd=ROAR_VIO_CTL_GET_*FH(0x%.8x), data=%p) = 0 // fh=%i", vio, cmd, data, roar_vio_get_fh(vio)); |
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[1505] | 417 | *(int*)data = roar_vio_get_fh(vio); |
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| 418 | return 0; |
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| 419 | break; |
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| 420 | } |
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| 421 | |
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| 422 | return -1; |
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| 423 | } |
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| 424 | |
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[1241] | 425 | int roar_vio_basic_close (struct roar_vio_calls * vio) { |
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[1474] | 426 | #ifdef _CAN_OPERATE |
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[1336] | 427 | if ( roar_vio_get_fh(vio) != -1 ) |
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| 428 | return close(roar_vio_get_fh(vio)); |
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| 429 | |
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| 430 | return 0; |
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[1474] | 431 | #else |
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| 432 | return -1; |
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| 433 | #endif |
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[1241] | 434 | } |
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| 435 | |
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[1760] | 436 | #ifdef ROAR_TARGET_WIN32 |
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| 437 | ssize_t roar_vio_winsock_read (struct roar_vio_calls * vio, void *buf, size_t count) { |
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| 438 | return recv(roar_vio_get_fh(vio), buf, count, 0); |
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| 439 | } |
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| 440 | |
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| 441 | ssize_t roar_vio_winsock_write (struct roar_vio_calls * vio, void *buf, size_t count) { |
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| 442 | return send(roar_vio_get_fh(vio), buf, count, 0); |
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| 443 | } |
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| 444 | |
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| 445 | int roar_vio_winsock_nonblock(struct roar_vio_calls * vio, int state) { |
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| 446 | return -1; |
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| 447 | } |
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| 448 | int roar_vio_winsock_sync (struct roar_vio_calls * vio) { |
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| 449 | return 0; |
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| 450 | } |
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| 451 | int roar_vio_winsock_ctl (struct roar_vio_calls * vio, int cmd, void * data) { |
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| 452 | return -1; |
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| 453 | } |
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| 454 | int roar_vio_winsock_close (struct roar_vio_calls * vio) { |
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| 455 | |
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| 456 | closesocket(roar_vio_get_fh(vio)); |
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| 457 | |
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| 458 | return 0; |
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| 459 | } |
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| 460 | #endif |
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| 461 | |
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| 462 | |
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[943] | 463 | // null |
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| 464 | ssize_t roar_vio_null_rw (struct roar_vio_calls * vio, void *buf, size_t count) { |
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| 465 | if ( vio == NULL || buf == NULL ) |
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| 466 | return -1; |
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| 467 | |
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| 468 | return 0; |
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| 469 | } |
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| 470 | |
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[1665] | 471 | int roar_vio_null_sync (struct roar_vio_calls * vio) { |
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| 472 | return 0; |
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| 473 | } |
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| 474 | |
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[886] | 475 | // pass |
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[1247] | 476 | int roar_vio_open_pass (struct roar_vio_calls * calls, struct roar_vio_calls * dst) { |
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| 477 | if ( calls == NULL ) |
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| 478 | return -1; |
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| 479 | |
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| 480 | memset((void*)calls, 0, sizeof(struct roar_vio_calls)); |
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| 481 | |
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| 482 | calls->read = roar_vio_pass_read; |
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| 483 | calls->write = roar_vio_pass_write; |
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| 484 | calls->lseek = roar_vio_pass_lseek; |
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| 485 | calls->nonblock = roar_vio_pass_nonblock; |
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| 486 | calls->sync = roar_vio_pass_sync; |
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[1615] | 487 | calls->ctl = roar_vio_pass_ctl; |
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[1247] | 488 | calls->close = roar_vio_pass_close; |
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| 489 | |
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| 490 | calls->inst = dst; |
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| 491 | |
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| 492 | return 0; |
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| 493 | } |
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| 494 | |
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[886] | 495 | ssize_t roar_vio_pass_read (struct roar_vio_calls * vio, void *buf, size_t count) { |
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| 496 | return roar_vio_read((struct roar_vio_calls *) vio->inst, buf, count); |
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| 497 | } |
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| 498 | |
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| 499 | ssize_t roar_vio_pass_write(struct roar_vio_calls * vio, void *buf, size_t count) { |
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| 500 | return roar_vio_write((struct roar_vio_calls *) vio->inst, buf, count); |
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| 501 | } |
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| 502 | |
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| 503 | off_t roar_vio_pass_lseek(struct roar_vio_calls * vio, off_t offset, int whence) { |
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| 504 | return roar_vio_lseek((struct roar_vio_calls *) vio->inst, offset, whence); |
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| 505 | } |
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| 506 | |
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[1241] | 507 | int roar_vio_pass_nonblock(struct roar_vio_calls * vio, int state) { |
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| 508 | return roar_vio_nonblock((struct roar_vio_calls *) vio->inst, state); |
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| 509 | } |
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| 510 | |
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| 511 | int roar_vio_pass_sync (struct roar_vio_calls * vio) { |
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| 512 | return roar_vio_sync((struct roar_vio_calls *) vio->inst); |
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| 513 | } |
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| 514 | |
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| 515 | int roar_vio_pass_ctl (struct roar_vio_calls * vio, int cmd, void * data) { |
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[1505] | 516 | if (vio == NULL || cmd == -1) |
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| 517 | return -1; |
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| 518 | |
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[1615] | 519 | ROAR_DBG("roar_vio_pass_ctl(vio=%p, cmd=0x%.8x, data=%p) = ?", vio, cmd, data); |
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| 520 | |
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[1505] | 521 | switch (cmd) { |
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| 522 | case ROAR_VIO_CTL_GET_NEXT: |
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| 523 | *(struct roar_vio_calls **)data = vio->inst; |
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| 524 | return 0; |
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| 525 | break; |
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| 526 | case ROAR_VIO_CTL_SET_NEXT: |
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| 527 | vio->inst = *(struct roar_vio_calls **)data; |
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| 528 | return 0; |
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| 529 | break; |
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| 530 | } |
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| 531 | |
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[1241] | 532 | return roar_vio_ctl((struct roar_vio_calls *) vio->inst, cmd, data); |
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| 533 | } |
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| 534 | |
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| 535 | int roar_vio_pass_close (struct roar_vio_calls * vio) { |
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| 536 | return roar_vio_close((struct roar_vio_calls *) vio->inst); |
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| 537 | } |
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| 538 | |
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[886] | 539 | |
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| 540 | // re |
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[1247] | 541 | int roar_vio_open_re (struct roar_vio_calls * calls, struct roar_vio_calls * dst) { |
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| 542 | if ( roar_vio_open_pass(calls, dst) == -1 ) |
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| 543 | return -1; |
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| 544 | |
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| 545 | calls->read = roar_vio_re_read; |
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| 546 | calls->write = roar_vio_re_write; |
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| 547 | calls->lseek = roar_vio_re_lseek; |
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| 548 | |
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| 549 | return 0; |
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| 550 | } |
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[886] | 551 | ssize_t roar_vio_re_read (struct roar_vio_calls * vio, void *buf, size_t count) { |
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| 552 | size_t len = 0; |
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| 553 | ssize_t r = -1; |
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| 554 | |
---|
| 555 | if ( vio == NULL ) |
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| 556 | return -1; |
---|
| 557 | |
---|
| 558 | if ( vio->inst == NULL ) |
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| 559 | return -1; |
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| 560 | |
---|
| 561 | errno = 0; |
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| 562 | |
---|
| 563 | while ( (r = roar_vio_read((struct roar_vio_calls *) vio->inst, buf, count)) > 0 ) { |
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| 564 | len += r; |
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| 565 | buf += r; |
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| 566 | count -= r; |
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| 567 | if ( count == 0 ) |
---|
| 568 | break; |
---|
| 569 | } |
---|
| 570 | |
---|
| 571 | if ( len == 0 && r == -1 ) |
---|
| 572 | return -1; |
---|
| 573 | |
---|
| 574 | return len; |
---|
| 575 | } |
---|
| 576 | |
---|
| 577 | ssize_t roar_vio_re_write(struct roar_vio_calls * vio, void *buf, size_t count) { |
---|
| 578 | size_t len = 0; |
---|
| 579 | ssize_t r = -1; |
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| 580 | |
---|
| 581 | if ( vio == NULL ) |
---|
| 582 | return -1; |
---|
| 583 | |
---|
| 584 | if ( vio->inst == NULL ) |
---|
| 585 | return -1; |
---|
| 586 | |
---|
| 587 | errno = 0; |
---|
| 588 | |
---|
| 589 | while ( (r = roar_vio_write((struct roar_vio_calls *) vio->inst, buf, count)) > 0 ) { |
---|
| 590 | len += r; |
---|
| 591 | buf += r; |
---|
| 592 | count -= r; |
---|
| 593 | if ( count == 0 ) |
---|
| 594 | break; |
---|
| 595 | } |
---|
| 596 | |
---|
| 597 | if ( len == 0 && r == -1 ) |
---|
| 598 | return -1; |
---|
| 599 | |
---|
| 600 | return len; |
---|
| 601 | } |
---|
| 602 | |
---|
[1247] | 603 | // TODO: we should do a some more intelgent thing here. |
---|
[886] | 604 | off_t roar_vio_re_lseek(struct roar_vio_calls * vio, off_t offset, int whence) { |
---|
| 605 | return roar_vio_lseek((struct roar_vio_calls *) vio->inst, offset, whence); |
---|
| 606 | } |
---|
| 607 | |
---|
[1253] | 608 | // stdio: |
---|
[1376] | 609 | #ifndef ROAR_WITHOUT_VIO_STDIO |
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[1253] | 610 | ssize_t roar_vio_stdio_read (struct roar_vio_calls * vio, void *buf, size_t count) { |
---|
| 611 | return fread(buf, 1, count, (FILE*)(vio->inst)); |
---|
| 612 | } |
---|
| 613 | |
---|
| 614 | ssize_t roar_vio_stdio_write (struct roar_vio_calls * vio, void *buf, size_t count) { |
---|
| 615 | return fwrite(buf, 1, count, (FILE*)(vio->inst)); |
---|
| 616 | } |
---|
| 617 | |
---|
| 618 | off_t roar_vio_stdio_lseek (struct roar_vio_calls * vio, off_t offset, int whence) { |
---|
| 619 | if ( fseek((FILE*)(vio->inst), offset, whence) == -1 ) |
---|
| 620 | return -1; |
---|
| 621 | |
---|
| 622 | return ftell((FILE*)(vio->inst)); |
---|
| 623 | } |
---|
| 624 | |
---|
| 625 | int roar_vio_stdio_sync (struct roar_vio_calls * vio) { |
---|
| 626 | return fflush((FILE*)(vio->inst)); |
---|
| 627 | } |
---|
| 628 | |
---|
[1505] | 629 | int roar_vio_stdio_ctl (struct roar_vio_calls * vio, int cmd, void * data) { |
---|
| 630 | |
---|
| 631 | if ( vio == NULL || cmd == -1 ) |
---|
| 632 | return -1; |
---|
| 633 | |
---|
| 634 | switch (cmd) { |
---|
| 635 | case ROAR_VIO_CTL_GET_FH: |
---|
| 636 | case ROAR_VIO_CTL_GET_READ_FH: |
---|
| 637 | case ROAR_VIO_CTL_GET_WRITE_FH: |
---|
| 638 | *(int*)data = fileno((FILE*)(vio->inst)); |
---|
| 639 | return 0; |
---|
| 640 | break; |
---|
| 641 | } |
---|
| 642 | |
---|
| 643 | return -1; |
---|
| 644 | } |
---|
| 645 | |
---|
[1253] | 646 | int roar_vio_stdio_close (struct roar_vio_calls * vio) { |
---|
| 647 | return fclose((FILE*)(vio->inst)); |
---|
| 648 | } |
---|
[1376] | 649 | #endif |
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[886] | 650 | |
---|
[590] | 651 | //ll |
---|