1 | //vio.c: |
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2 | |
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3 | /* |
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4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008, 2009 |
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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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35 | #include "libroar.h" |
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36 | |
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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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41 | int roar_vio_init_calls (struct roar_vio_calls * calls) { |
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42 | #ifdef _CAN_OPERATE |
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43 | if ( calls == NULL ) |
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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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48 | /* |
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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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52 | */ |
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53 | |
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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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59 | calls->ctl = roar_vio_basic_ctl; |
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60 | calls->close = roar_vio_basic_close; |
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61 | |
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62 | return 0; |
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63 | #else |
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64 | return -1; |
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65 | #endif |
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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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73 | |
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74 | return 0; |
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75 | } |
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76 | |
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77 | int roar_vio_set_fh (struct roar_vio_calls * vio, int fh) { |
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78 | return roar_vio_set_inst(vio, (void*)(ROAR_INSTINT)(fh + 1)); |
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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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85 | return ((int)(ROAR_INSTINT)vio->inst) - 1; |
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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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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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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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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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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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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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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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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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157 | if ( vio->close == NULL ) |
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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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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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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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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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190 | #ifdef _CAN_OPERATE |
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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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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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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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209 | #else |
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210 | return -1; |
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211 | #endif |
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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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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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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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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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241 | |
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242 | return 0; |
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243 | } |
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244 | |
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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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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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279 | return roar_vio_open_fh_socket(calls, fh); |
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280 | } |
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281 | |
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282 | |
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283 | int roar_vio_open_stdio (struct roar_vio_calls * calls, FILE * dst) { |
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284 | #ifndef ROAR_WITHOUT_VIO_STDIO |
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285 | if ( calls == NULL || dst == NULL ) |
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286 | return -1; |
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287 | |
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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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299 | #else |
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300 | return -1; |
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301 | #endif |
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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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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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319 | return fopencookie((void*) calls, "rw", foc_funcs); |
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320 | #elif defined(ROAR_HAVE_FUNOPEN) |
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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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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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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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356 | #endif |
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357 | |
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358 | // VIOs: |
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359 | |
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360 | // basic |
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361 | ssize_t roar_vio_basic_read (struct roar_vio_calls * vio, void *buf, size_t count) { |
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362 | #ifdef _CAN_OPERATE |
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363 | return read(roar_vio_get_fh(vio), buf, count); |
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364 | #else |
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365 | return -1; |
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366 | #endif |
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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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370 | #ifdef _CAN_OPERATE |
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371 | return write(roar_vio_get_fh(vio), buf, count); |
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372 | #else |
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373 | return -1; |
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374 | #endif |
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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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378 | #ifdef _CAN_OPERATE |
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379 | return lseek(roar_vio_get_fh(vio), offset, whence); |
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380 | #else |
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381 | return -1; |
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382 | #endif |
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383 | } |
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384 | |
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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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392 | roar_vio_sync(vio); |
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393 | |
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394 | return 0; |
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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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398 | #ifdef ROAR_FDATASYNC |
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399 | return ROAR_FDATASYNC(roar_vio_get_fh(vio)); |
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400 | #else |
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401 | return 0; |
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402 | #endif |
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403 | } |
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404 | |
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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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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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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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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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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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425 | int roar_vio_basic_close (struct roar_vio_calls * vio) { |
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426 | #ifdef _CAN_OPERATE |
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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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431 | #else |
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432 | return -1; |
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433 | #endif |
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434 | } |
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435 | |
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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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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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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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475 | // pass |
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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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487 | calls->ctl = roar_vio_pass_ctl; |
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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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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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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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516 | if (vio == NULL || cmd == -1) |
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517 | return -1; |
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518 | |
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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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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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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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539 | |
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540 | // re |
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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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551 | ssize_t roar_vio_re_read (struct roar_vio_calls * vio, void *buf, size_t count) { |
---|
552 | size_t len = 0; |
---|
553 | ssize_t r = -1; |
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554 | |
---|
555 | if ( vio == NULL ) |
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556 | return -1; |
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557 | |
---|
558 | if ( vio->inst == NULL ) |
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559 | return -1; |
---|
560 | |
---|
561 | errno = 0; |
---|
562 | |
---|
563 | while ( (r = roar_vio_read((struct roar_vio_calls *) vio->inst, buf, count)) > 0 ) { |
---|
564 | len += r; |
---|
565 | buf += r; |
---|
566 | count -= r; |
---|
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; |
---|
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 | |
---|
603 | // TODO: we should do a some more intelgent thing here. |
---|
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 | |
---|
608 | // stdio: |
---|
609 | #ifndef ROAR_WITHOUT_VIO_STDIO |
---|
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 | |
---|
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 | |
---|
646 | int roar_vio_stdio_close (struct roar_vio_calls * vio) { |
---|
647 | return fclose((FILE*)(vio->inst)); |
---|
648 | } |
---|
649 | #endif |
---|
650 | |
---|
651 | //ll |
---|