1 | //roardl.c: |
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2 | |
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3 | /* |
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4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2010-2014 |
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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, 51 Franklin Street, Fifth Floor, |
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22 | * Boston, MA 02110-1301, USA. |
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23 | * |
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24 | * NOTE for everyone want's to change something and send patches: |
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25 | * read README and HACKING! There a addition information on |
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26 | * the license of this document you need to read before you send |
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27 | * any patches. |
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28 | * |
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29 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
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30 | * or libpulse*: |
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31 | * The libs libroaresd, libroararts and libroarpulse link this lib |
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32 | * and are therefore GPL. Because of this it may be illigal to use |
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33 | * them with any software that uses libesd, libartsc or libpulse*. |
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34 | */ |
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35 | |
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36 | #include "libroar.h" |
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37 | |
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38 | #ifdef ROAR_HAVE_H_DIRENT |
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39 | #include <dirent.h> |
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40 | #endif |
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41 | |
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42 | #if defined(ROAR_HAVE_H_DLFCN) && !defined(RTLD_NEXT) |
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43 | #define RTLD_NEXT ((void *) -1L) |
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44 | #endif |
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45 | |
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46 | #define RTF_RA_INITED 0x0001 |
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47 | #define RTF_APPSCHED_INITED 0x0002 |
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48 | #define RTF_APPSCHED_FREED 0x0004 |
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49 | |
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50 | struct roar_dl_lhandle { |
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51 | size_t refc; // currently unused. |
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52 | int flags; |
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53 | char * libname; // only used for ROAR_DL_FLAG_STATIC. |
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54 | struct roar_dl_librarypara * para; |
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55 | struct roar_dl_libraryinst * lib; |
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56 | struct { |
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57 | struct roar_error_state error_state; |
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58 | void * global_data; |
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59 | void * global_data_state; |
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60 | struct roar_notify_core * notifycore; |
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61 | struct roar_vio_calls * stdvios[3]; |
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62 | } context; |
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63 | unsigned int runtime_flags; |
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64 | #if defined(ROAR_HAVE_H_DLFCN) |
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65 | void * handle; |
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66 | #elif defined(ROAR_TARGET_WIN32) |
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67 | HMODULE handle; |
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68 | #endif |
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69 | }; |
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70 | |
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71 | // TODO: this should be removed on next SONAME change. |
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72 | static struct roar_dl_lhandle * __currently_inited = NULL; |
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73 | static int __currently_inited_fn = -1; |
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74 | |
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75 | struct roar_dl_librarypara * roar_dl_para_new(const char * args, void * binargv, |
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76 | const char * appname, const char * abiversion) { |
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77 | struct roar_dl_librarypara * ret = roar_mm_malloc(sizeof(struct roar_dl_librarypara)); |
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78 | ssize_t argc; |
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79 | int err; |
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80 | |
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81 | if ( ret == NULL ) |
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82 | return NULL; |
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83 | |
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84 | memset(ret, 0, sizeof(struct roar_dl_librarypara)); |
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85 | |
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86 | ret->version = ROAR_DL_LIBPARA_VERSION; |
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87 | ret->len = sizeof(struct roar_dl_librarypara); |
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88 | ret->refc = 1; |
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89 | ret->argc = 0; |
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90 | ret->argv = NULL; |
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91 | ret->args_store = NULL; |
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92 | ret->binargv = binargv; |
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93 | ret->appname = appname; |
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94 | ret->abiversion = abiversion; |
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95 | |
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96 | if ( args != NULL ) { |
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97 | ret->args_store = roar_mm_strdup(args); |
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98 | if ( ret->args_store == NULL ) { |
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99 | roar_mm_free_noerror(ret); |
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100 | return NULL; |
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101 | } |
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102 | |
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103 | argc = roar_keyval_split(&(ret->argv), ret->args_store, NULL, NULL, 1); |
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104 | if ( argc == -1 ) { |
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105 | err = roar_error; |
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106 | roar_mm_free(ret->args_store); |
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107 | roar_mm_free(ret); |
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108 | roar_error = err; |
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109 | return NULL; |
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110 | } |
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111 | |
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112 | ret->argc = argc; |
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113 | } |
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114 | |
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115 | return ret; |
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116 | } |
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117 | |
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118 | int roar_dl_para_ref (struct roar_dl_librarypara * para) { |
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119 | if ( para == NULL ) { |
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120 | ROAR_DBG("roar_dl_para_ref(para=%p) = -1 // error=FAULT", para); |
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121 | roar_err_set(ROAR_ERROR_FAULT); |
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122 | return -1; |
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123 | } |
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124 | |
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125 | para->refc++; |
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126 | |
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127 | ROAR_DBG("roar_dl_para_ref(para=%p) = 0", para); |
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128 | return 0; |
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129 | } |
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130 | |
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131 | int roar_dl_para_unref (struct roar_dl_librarypara * para) { |
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132 | if ( para == NULL ) { |
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133 | ROAR_DBG("roar_dl_para_unref(para=%p) = -1 // error=FAULT", para); |
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134 | roar_err_set(ROAR_ERROR_FAULT); |
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135 | return -1; |
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136 | } |
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137 | |
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138 | para->refc--; |
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139 | |
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140 | if ( para->refc ) { |
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141 | ROAR_DBG("roar_dl_para_unref(para=%p) = 0", para); |
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142 | return 0; |
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143 | } |
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144 | |
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145 | if ( para->notifycore != NULL ) |
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146 | roar_notify_core_unref(para->notifycore); |
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147 | |
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148 | if ( para->args_store != NULL ) { |
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149 | roar_mm_free(para->args_store); |
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150 | roar_mm_free(para->argv); |
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151 | } |
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152 | |
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153 | roar_mm_free(para); |
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154 | |
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155 | ROAR_DBG("roar_dl_para_unref(para=%p) = 0", para); |
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156 | return 0; |
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157 | } |
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158 | int roar_dl_para_check_version (struct roar_dl_librarypara * para, |
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159 | const char * appname, const char * abiversion) { |
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160 | if ( para == NULL ) { |
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161 | roar_err_set(ROAR_ERROR_FAULT); |
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162 | return -1; |
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163 | } |
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164 | |
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165 | // check if both appnames are NULL or non-NULL. |
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166 | if ( (para->appname == NULL && appname != NULL) || (para->appname != NULL && appname == NULL) ) { |
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167 | roar_err_set(ROAR_ERROR_BADHOST); |
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168 | return -1; |
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169 | } |
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170 | |
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171 | // check if the appname matches if given. |
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172 | if ( para->appname != NULL && !!strcmp(para->appname, appname) ) { |
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173 | roar_err_set(ROAR_ERROR_BADHOST); |
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174 | return -1; |
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175 | } |
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176 | |
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177 | // check if both ABI versions are NULL or non-NULL. |
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178 | if ( (para->abiversion == NULL && abiversion != NULL) || (para->abiversion != NULL && abiversion == NULL) ) { |
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179 | roar_err_set(ROAR_ERROR_BADVERSION); |
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180 | return -1; |
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181 | } |
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182 | |
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183 | // check if the ABI versions matches if given. |
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184 | if ( para->abiversion != NULL && !!strcmp(para->abiversion, abiversion) ) { |
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185 | roar_err_set(ROAR_ERROR_BADVERSION); |
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186 | return -1; |
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187 | } |
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188 | |
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189 | return 0; |
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190 | } |
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191 | |
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192 | |
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193 | #if defined(ROAR_HAVE_H_DLFCN) |
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194 | static void * _roardl2ldl (struct roar_dl_lhandle * lhandle) { |
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195 | ROAR_DBG("_roardl2ldl(lhandle=%p) = ?", lhandle); |
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196 | |
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197 | if ( (void*)lhandle < (void*)128 ) { |
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198 | switch ((int)(void*)lhandle) { |
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199 | case (int)(void*)ROAR_DL_HANDLE_DEFAULT: |
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200 | case (int)(void*)ROAR_DL_HANDLE_LIBROAR: |
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201 | case (int)(void*)ROAR_DL_HANDLE_APPLICATION: |
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202 | ROAR_DBG("_roardl2ldl(lhandle=%p) = %p", lhandle, (void*)RTLD_DEFAULT); |
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203 | return RTLD_DEFAULT; |
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204 | break; |
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205 | case (int)(void*)ROAR_DL_HANDLE_NEXT: |
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206 | ROAR_DBG("_roardl2ldl(lhandle=%p) = %p", lhandle, (void*)RTLD_NEXT); |
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207 | return RTLD_NEXT; |
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208 | break; |
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209 | } |
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210 | } |
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211 | |
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212 | ROAR_DBG("_roardl2ldl(lhandle=%p) = %p", lhandle, (void*)(lhandle->handle)); |
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213 | return lhandle->handle; |
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214 | } |
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215 | #elif defined(ROAR_TARGET_WIN32) |
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216 | static HMODULE _roardl2winhandle(struct roar_dl_lhandle * lhandle) { |
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217 | if ( (void*)lhandle < (void*)128 ) { |
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218 | return NULL; |
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219 | } |
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220 | return lhandle->handle; |
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221 | } |
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222 | #endif |
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223 | |
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224 | #ifdef ROAR_HAVE_H_DIRENT |
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225 | // pvn = prefix, host vendor, host name |
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226 | static struct roar_dl_lhandle * _load_from_path_pvn(const char * name, |
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227 | int flags, int ra_init, |
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228 | struct roar_dl_librarypara * para, |
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229 | const char * prefix, |
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230 | const char * hostvendor, |
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231 | const char * hostname) { |
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232 | struct roar_dl_lhandle * ret = NULL; |
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233 | int i, j; |
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234 | char path[1024]; |
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235 | const char * path_format[] = {"%s/%s/%s", "%s/%s/universal", "%s/universal/universal"}; |
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236 | DIR * dir; |
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237 | struct dirent * dirent; |
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238 | char file[1024]; |
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239 | const char * file_format[] = {"%s/%s/%s", "%s/%s/%s" ROAR_SHARED_SUFFIX, "%s/%s/lib%s" ROAR_SHARED_SUFFIX}; |
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240 | // cont->handle[idx] = roar_dl_open(name, ROAR_DL_FLAG_DEFAULTS, 1, para); |
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241 | //#vars: $PREFIX_PLUGINS, $hostvendor, $hostname, $name |
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242 | //#search order: $PREFIX_PLUGINS/{$hostvendor/{$hostname,universal},universal/universal}/*/{,lib}$name.so |
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243 | |
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244 | for (i = 0; i < 3; i++) { |
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245 | snprintf(path, sizeof(path), path_format[i], prefix, hostvendor, hostname); |
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246 | dir = opendir(path); |
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247 | if ( dir == NULL ) |
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248 | continue; |
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249 | |
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250 | while ((dirent = readdir(dir)) != NULL) { |
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251 | if ( !strcmp(dirent->d_name, ".") || !strcmp(dirent->d_name, "..") ) |
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252 | continue; |
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253 | |
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254 | for (j = 0; j < 3; j++) { |
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255 | snprintf(file, sizeof(file), file_format[j], path, dirent->d_name, name); |
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256 | ret = roar_dl_open(file, flags, ra_init, para); |
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257 | if ( ret != NULL ) { |
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258 | closedir(dir); |
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259 | return ret; |
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260 | } |
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261 | } |
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262 | } |
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263 | |
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264 | closedir(dir); |
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265 | } |
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266 | |
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267 | return NULL; |
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268 | } |
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269 | |
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270 | static struct roar_dl_lhandle * _load_from_path(const char * name, int flags, int ra_init, |
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271 | struct roar_dl_librarypara * para) { |
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272 | struct roar_dl_lhandle * ret = NULL; |
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273 | char * host = NULL; |
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274 | char * hostvendor_buffer = NULL; |
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275 | char * hostvendor = NULL; |
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276 | char * hostname = NULL; |
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277 | size_t hostvendor_len; |
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278 | char * c, * d; |
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279 | |
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280 | if ( para != NULL && para->appname != NULL && para->appname[0] != 0 ) { |
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281 | host = roar_mm_strdup(para->appname); |
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282 | |
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283 | // if we are out of memory we will likely not pass the rest, so just return in error. |
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284 | if ( host == NULL ) |
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285 | return NULL; |
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286 | |
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287 | hostname = host; |
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288 | c = strstr(host, "<"); |
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289 | if ( c != NULL ) { |
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290 | while (c[-1] == ' ') c--; |
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291 | *c = 0; |
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292 | c++; |
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293 | while (*c == ' ' || *c == '<') c++; |
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294 | if ( *c ) { |
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295 | d = strstr(c, ">"); |
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296 | if ( d != NULL ) |
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297 | *d = 0; |
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298 | |
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299 | d = strstr(c, "/"); |
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300 | if ( d != NULL ) { |
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301 | *d = '-'; |
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302 | hostvendor = c; |
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303 | } else { |
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304 | hostvendor_len = roar_mm_strlen(c) + 1 /* tailing \0 */ + 6 /* "unreg-" */; |
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305 | hostvendor_buffer = roar_mm_malloc(hostvendor_len); |
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306 | |
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307 | // see above |
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308 | if ( hostvendor_buffer == NULL ) { |
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309 | roar_mm_free(host); |
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310 | return NULL; |
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311 | } |
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312 | |
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313 | roar_mm_strlcpy(hostvendor_buffer, "unreg-", hostvendor_len); |
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314 | roar_mm_strlcat(hostvendor_buffer, c, hostvendor_len); |
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315 | hostvendor = hostvendor_buffer; |
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316 | } |
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317 | } |
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318 | } |
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319 | } |
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320 | |
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321 | if ( hostvendor == NULL ) |
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322 | hostvendor = "universal"; |
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323 | |
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324 | if ( hostname == NULL ) |
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325 | hostname = "universal"; |
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326 | |
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327 | ret = _load_from_path_pvn(name, flags, ra_init, para, ROAR_PREFIX_PLUGINS, hostvendor, hostname); |
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328 | |
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329 | if ( host != NULL ) |
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330 | roar_mm_free(host); |
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331 | if ( hostvendor_buffer != NULL ) |
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332 | roar_mm_free(hostvendor_buffer); |
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333 | return ret; |
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334 | } |
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335 | #endif |
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336 | |
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337 | static struct roar_dl_lhandle * _roar_dl_open_pluginpath(const char * filename, int flags, |
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338 | int ra_init, struct roar_dl_librarypara * para) { |
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339 | flags |= ROAR_DL_FLAG_PLUGINPATH; |
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340 | flags -= ROAR_DL_FLAG_PLUGINPATH; |
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341 | |
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342 | #ifdef ROAR_HAVE_H_DIRENT |
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343 | // do normal open for everything with a path name. |
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344 | if ( strstr(filename, "/") != NULL ) |
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345 | return roar_dl_open(filename, flags, ra_init, para); |
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346 | |
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347 | return _load_from_path(filename, flags, ra_init, para); |
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348 | #else |
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349 | // fall back to system open function. |
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350 | return roar_dl_open(filename, flags, ra_init, para); |
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351 | #endif |
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352 | } |
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353 | |
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354 | struct roar_dl_lhandle * roar_dl_open(const char * filename, int flags, |
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355 | int ra_init, struct roar_dl_librarypara * para) { |
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356 | struct roar_dl_lhandle * ret = NULL; |
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357 | #if defined(ROAR_HAVE_H_DLFCN) |
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358 | #if defined(RTLD_DEEPBIND) && 0 |
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359 | // FIXME: This is currently disabled. See #296. |
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360 | int libdl_flags = RTLD_DEEPBIND; |
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361 | #else |
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362 | int libdl_flags = 0; |
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363 | #endif |
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364 | #endif |
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365 | int err; |
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366 | |
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367 | switch (flags) { |
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368 | case ROAR_DL_FLAG_DEFAULTS: flags = ROAR_DL_FLAG_NONE; break; |
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369 | case ROAR_DL_FLAG_PLUGIN: flags = ROAR_DL_FLAG_PLUGINPATH; break; |
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370 | } |
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371 | |
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372 | if ( flags & ROAR_DL_FLAG_PLUGINPATH ) |
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373 | return _roar_dl_open_pluginpath(filename, flags, ra_init, para); |
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374 | |
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375 | #if defined(ROAR_HAVE_H_DLFCN) |
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376 | if ( flags & ROAR_DL_FLAG_LAZY ) { |
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377 | libdl_flags |= RTLD_LAZY; |
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378 | } else { |
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379 | libdl_flags |= RTLD_NOW; |
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380 | } |
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381 | #endif |
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382 | |
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383 | if ( (ret = roar_mm_malloc(sizeof(struct roar_dl_lhandle))) == NULL ) |
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384 | return NULL; |
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385 | |
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386 | memset(ret, 0, sizeof(struct roar_dl_lhandle)); |
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387 | |
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388 | roar_err_initstore(&(ret->context.error_state)); |
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389 | |
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390 | ret->flags = flags; |
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391 | ret->refc = 1; |
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392 | |
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393 | if ( flags & ROAR_DL_FLAG_STATIC ) { |
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394 | if ( filename == NULL ) { |
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395 | ret->libname = NULL; |
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396 | } else { |
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397 | ret->libname = roar_mm_strdup(filename); |
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398 | } |
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399 | } else { |
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400 | #if defined(ROAR_HAVE_H_DLFCN) |
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401 | ret->handle = dlopen(filename, libdl_flags); |
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402 | |
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403 | if ( ret->handle == NULL ) { |
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404 | ROAR_DBG("roar_dl_open(filename='%s', flags=%i, ra_init=%i, para=%p): Can not load library: %s", filename, flags, ra_init, para, roar_dl_errstr(ret)); |
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405 | roar_mm_free(ret); |
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406 | return NULL; |
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407 | } |
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408 | #elif defined(ROAR_TARGET_WIN32) |
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409 | ret->handle = LoadLibrary(filename); |
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410 | |
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411 | if ( ret->handle == NULL ) { |
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412 | roar_mm_free(ret); |
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413 | return NULL; |
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414 | } |
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415 | #else |
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416 | roar_mm_free(ret); |
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417 | roar_err_set(ROAR_ERROR_NOSYS); |
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418 | return NULL; |
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419 | #endif |
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420 | } |
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421 | |
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422 | ret->para = para; |
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423 | |
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424 | if ( roar_vio_ref(roar_stdin) == 0 ) |
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425 | ret->context.stdvios[0] = roar_stdin; |
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426 | if ( roar_vio_ref(roar_stdout) == 0 ) |
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427 | ret->context.stdvios[1] = roar_stdout; |
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428 | if ( roar_vio_ref(roar_stderr) == 0 ) |
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429 | ret->context.stdvios[2] = roar_stderr; |
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430 | |
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431 | if ( ra_init ) { |
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432 | if ( roar_dl_ra_init(ret, NULL, para) == -1 ) { |
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433 | err = roar_error; |
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434 | ROAR_WARN("roar_dl_open(filename='%s', flags=%i, ra_init=%i, para=%p): Can not init RA lib: %s", filename, flags, ra_init, para, roar_error2str(err)); |
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435 | #if defined(ROAR_HAVE_H_DLFCN) |
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436 | if ( ret->handle != NULL ) |
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437 | dlclose(ret->handle); |
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438 | #elif defined(ROAR_TARGET_WIN32) |
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439 | if ( ret->handle != NULL ) |
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440 | FreeLibrary(ret->handle); |
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441 | #endif |
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442 | roar_vio_unref(ret->context.stdvios[0]); |
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443 | roar_vio_unref(ret->context.stdvios[1]); |
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444 | roar_vio_unref(ret->context.stdvios[2]); |
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445 | roar_mm_free(ret); |
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446 | roar_error = err; |
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447 | return NULL; |
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448 | } |
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449 | } |
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450 | |
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451 | if ( para != NULL ) |
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452 | roar_dl_para_ref(para); |
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453 | |
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454 | return ret; |
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455 | } |
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456 | |
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457 | int roar_dl_ref (struct roar_dl_lhandle * lhandle) { |
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458 | if ( (void*)lhandle < (void*)128 ) { |
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459 | ROAR_DBG("roar_dl_ref(lhandle=%p) = -1 // error=BADFH", lhandle); |
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460 | roar_err_set(ROAR_ERROR_BADFH); |
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461 | return -1; |
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462 | } |
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463 | |
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464 | lhandle->refc++; |
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465 | |
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466 | ROAR_DBG("roar_dl_ref(lhandle=%p) = 0", lhandle); |
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467 | return 0; |
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468 | } |
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469 | |
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470 | int roar_dl_unref (struct roar_dl_lhandle * lhandle) { |
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471 | int ret = -1; |
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472 | |
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473 | if ( (void*)lhandle < (void*)128 ) { |
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474 | ROAR_DBG("roar_dl_unref(lhandle=%p) = -1 // error=BADFH", lhandle); |
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475 | roar_err_set(ROAR_ERROR_BADFH); |
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476 | return -1; |
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477 | } |
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478 | |
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479 | lhandle->refc--; |
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480 | |
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481 | if ( lhandle->refc ) { |
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482 | ROAR_DBG("roar_dl_unref(lhandle=%p) = 0", lhandle); |
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483 | return 0; |
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484 | } |
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485 | |
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486 | roar_dl_unregister_fn(lhandle); |
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487 | |
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488 | if ( lhandle->lib != NULL && lhandle->lib->unload != NULL ) { |
---|
489 | roar_dl_context_restore(lhandle); |
---|
490 | lhandle->lib->unload(lhandle->para, lhandle->lib); |
---|
491 | roar_dl_context_store(lhandle); |
---|
492 | } |
---|
493 | |
---|
494 | #if defined(ROAR_HAVE_H_DLFCN) |
---|
495 | if ( lhandle->handle == NULL ) { |
---|
496 | ret = 0; |
---|
497 | } else { |
---|
498 | ret = dlclose(_roardl2ldl(lhandle)); |
---|
499 | } |
---|
500 | #elif defined(ROAR_TARGET_WIN32) |
---|
501 | if ( lhandle->handle == NULL ) { |
---|
502 | ret = 0; |
---|
503 | } else { |
---|
504 | if ( FreeLibrary(_roardl2winhandle(lhandle)) ) { |
---|
505 | ret = 0; |
---|
506 | } else { |
---|
507 | ret = -1; |
---|
508 | } |
---|
509 | } |
---|
510 | #else |
---|
511 | ret = -1; |
---|
512 | #endif |
---|
513 | |
---|
514 | roar_vio_unref(lhandle->context.stdvios[0]); |
---|
515 | roar_vio_unref(lhandle->context.stdvios[1]); |
---|
516 | roar_vio_unref(lhandle->context.stdvios[2]); |
---|
517 | |
---|
518 | if ( lhandle->context.global_data != NULL ) |
---|
519 | roar_mm_free(lhandle->context.global_data); |
---|
520 | |
---|
521 | if ( lhandle->para != NULL ) |
---|
522 | roar_dl_para_unref(lhandle->para); |
---|
523 | |
---|
524 | if ( lhandle->libname != NULL ) |
---|
525 | roar_mm_free(lhandle->libname); |
---|
526 | |
---|
527 | roar_mm_free(lhandle); |
---|
528 | |
---|
529 | ROAR_DBG("roar_dl_unref(lhandle=%p) = %i", lhandle, ret); |
---|
530 | return ret; |
---|
531 | } |
---|
532 | |
---|
533 | void * roar_dl_getsym(struct roar_dl_lhandle * lhandle, const char * sym, int type) { |
---|
534 | #if defined(ROAR_HAVE_H_DLFCN) |
---|
535 | void * ret = dlsym(_roardl2ldl(lhandle), sym); |
---|
536 | |
---|
537 | (void)type; |
---|
538 | |
---|
539 | ROAR_DBG("roar_dl_getsym(lhandle=%p, sym='%s', type=%i): ret=%p, errno=%s(%i), dlerror()='%s'", lhandle, sym, type, ret, strerror(errno), errno, dlerror()); |
---|
540 | ROAR_DBG("roar_dl_getsym(lhandle=%p, sym='%s', type=%i) = %p", lhandle, sym, type, ret); |
---|
541 | |
---|
542 | return ret; |
---|
543 | #elif defined(ROAR_TARGET_WIN32) |
---|
544 | FARPROC ret = GetProcAddress(_roardl2winhandle(lhandle), sym); |
---|
545 | return (void*)ret; |
---|
546 | #else |
---|
547 | ROAR_DBG("roar_dl_getsym(lhandle=%p, sym='%s', type=%i) = NULL // errno=NOSYS", lhandle, sym, type, ret); |
---|
548 | roar_err_set(ROAR_ERROR_NOSYS); |
---|
549 | return NULL; |
---|
550 | #endif |
---|
551 | } |
---|
552 | |
---|
553 | int roar_dl_ra_init(struct roar_dl_lhandle * lhandle, |
---|
554 | const char * prefix, |
---|
555 | struct roar_dl_librarypara * para) { |
---|
556 | struct roar_dl_lhandle * old_init; |
---|
557 | int old_fn; |
---|
558 | #define _SUFFIX "_roaraudio_library_init" |
---|
559 | char name[80] = _SUFFIX; |
---|
560 | struct roar_dl_libraryinst * (*func)(struct roar_dl_librarypara * para); |
---|
561 | struct roar_dl_libraryinst * lib; |
---|
562 | struct roar_dl_lhandle * getsymhandle = lhandle; |
---|
563 | void * global_data_state = NULL; |
---|
564 | int i; |
---|
565 | |
---|
566 | if ( (void*)lhandle < (void*)128 ) { |
---|
567 | if ( prefix == NULL ) |
---|
568 | return -1; |
---|
569 | } else { |
---|
570 | if ( lhandle->runtime_flags & RTF_RA_INITED ) |
---|
571 | return 0; |
---|
572 | |
---|
573 | if ( prefix == NULL ) |
---|
574 | prefix = lhandle->libname; |
---|
575 | |
---|
576 | if ( para == NULL ) |
---|
577 | para = lhandle->para; |
---|
578 | |
---|
579 | if ( lhandle->flags & ROAR_DL_FLAG_STATIC ) |
---|
580 | getsymhandle = ROAR_DL_HANDLE_DEFAULT; |
---|
581 | } |
---|
582 | |
---|
583 | |
---|
584 | if ( prefix != NULL ) { |
---|
585 | roar_mm_strscpy(name, "_"); |
---|
586 | roar_mm_strscat(name, prefix); |
---|
587 | roar_mm_strscat(name, _SUFFIX); |
---|
588 | } |
---|
589 | |
---|
590 | ROAR_DBG("roar_dl_ra_init(lhandle=%p, prefix='%s'): name='%s'", lhandle, prefix, name); |
---|
591 | |
---|
592 | if ( (func = roar_dl_getsym(getsymhandle, name, -1)) == NULL ) { |
---|
593 | ROAR_DBG("roar_dl_ra_init(lhandle=%p, prefix='%s') = -1", lhandle, prefix); |
---|
594 | return -1; |
---|
595 | } |
---|
596 | |
---|
597 | ROAR_DBG("roar_dl_ra_init(lhandle=%p, prefix='%s'): func=%p", lhandle, prefix, func); |
---|
598 | |
---|
599 | roar_err_set(ROAR_ERROR_BADLIB); // set a default error in case it returns NULL but not set an error code. |
---|
600 | lib = func(para); |
---|
601 | |
---|
602 | if ( lib == NULL ) |
---|
603 | return -1; |
---|
604 | |
---|
605 | if ( lib->version != ROAR_DL_LIBINST_VERSION ) |
---|
606 | return -1; |
---|
607 | |
---|
608 | if ( sizeof(struct roar_dl_libraryinst) > lib->len ) |
---|
609 | return -1; |
---|
610 | |
---|
611 | if ( lib->host_appname != NULL || lib->host_abiversion != NULL ) { |
---|
612 | // check for correct host. |
---|
613 | if ( para == NULL ) { |
---|
614 | roar_err_set(ROAR_ERROR_INVAL); |
---|
615 | return -1; |
---|
616 | } |
---|
617 | if ( roar_dl_para_check_version(para, lib->host_appname, lib->host_abiversion) == -1 ) |
---|
618 | return -1; |
---|
619 | } |
---|
620 | |
---|
621 | if ( (lib->libdep == NULL && lib->libdep_len) || (lib->libdep != NULL && !lib->libdep_len) ) { |
---|
622 | roar_err_set(ROAR_ERROR_BADLIB); |
---|
623 | return -1; |
---|
624 | } |
---|
625 | |
---|
626 | if ( lib->libdep != NULL && lib->libdep_len ) { |
---|
627 | // dynamic loader infos are currently not supported. |
---|
628 | roar_err_set(ROAR_ERROR_NOTSUP); |
---|
629 | return -1; |
---|
630 | } |
---|
631 | |
---|
632 | if ( !((void*)lhandle < (void*)128) ) { |
---|
633 | lhandle->lib = lib; |
---|
634 | |
---|
635 | if ( lib->global_data_len ) { |
---|
636 | lhandle->context.global_data = roar_mm_malloc(lib->global_data_len); |
---|
637 | if ( lhandle->context.global_data == NULL ) |
---|
638 | return -1; |
---|
639 | |
---|
640 | if ( lib->global_data_init == NULL ) { |
---|
641 | memset(lhandle->context.global_data, 0, lib->global_data_len); |
---|
642 | } else { |
---|
643 | memcpy(lhandle->context.global_data, lib->global_data_init, lib->global_data_len); |
---|
644 | } |
---|
645 | } |
---|
646 | } |
---|
647 | |
---|
648 | if ( lib->global_data_pointer != NULL ) { |
---|
649 | global_data_state = *(lib->global_data_pointer); |
---|
650 | if ( (void*)lhandle < (void*)128 ) { |
---|
651 | *(lib->global_data_pointer) = lib->global_data_init; |
---|
652 | } else { |
---|
653 | *(lib->global_data_pointer) = lhandle->context.global_data; |
---|
654 | } |
---|
655 | } |
---|
656 | |
---|
657 | roar_dl_context_restore(lhandle); |
---|
658 | |
---|
659 | old_init = __currently_inited; |
---|
660 | old_fn = __currently_inited_fn; |
---|
661 | __currently_inited = lhandle; |
---|
662 | for (i = 0; i < ROAR_DL_FN_MAX; i++) { |
---|
663 | __currently_inited_fn = i; |
---|
664 | if ( lib->func[i] != NULL ) |
---|
665 | lib->func[i](para, lib); |
---|
666 | } |
---|
667 | __currently_inited_fn = old_fn; |
---|
668 | __currently_inited = old_init; |
---|
669 | |
---|
670 | roar_dl_context_store(lhandle); |
---|
671 | |
---|
672 | if ( lib->global_data_pointer != NULL ) { |
---|
673 | if ( !((void*)lhandle < (void*)128) ) { |
---|
674 | *(lib->global_data_pointer) = global_data_state; |
---|
675 | } |
---|
676 | } |
---|
677 | |
---|
678 | if ( !((void*)lhandle < (void*)128) ) |
---|
679 | lhandle->runtime_flags |= RTF_RA_INITED; |
---|
680 | |
---|
681 | return 0; |
---|
682 | } |
---|
683 | |
---|
684 | const char * roar_dl_errstr(struct roar_dl_lhandle * lhandle) { |
---|
685 | #if defined(ROAR_HAVE_H_DLFCN) |
---|
686 | (void)lhandle; |
---|
687 | return dlerror(); |
---|
688 | #elif defined(ROAR_TARGET_WIN32) |
---|
689 | roar_err_from_errno(); |
---|
690 | return roar_error2str(roar_error); |
---|
691 | #else |
---|
692 | return NULL; |
---|
693 | #endif |
---|
694 | } |
---|
695 | |
---|
696 | struct roar_dl_librarypara * roar_dl_getpara(struct roar_dl_lhandle * lhandle) { |
---|
697 | if ( (void*)lhandle < (void*)128 ) { |
---|
698 | roar_err_set(ROAR_ERROR_NOTSUP); |
---|
699 | return NULL; |
---|
700 | } |
---|
701 | |
---|
702 | if ( lhandle->para == NULL ) { |
---|
703 | roar_err_set(ROAR_ERROR_NOENT); |
---|
704 | return NULL; |
---|
705 | } |
---|
706 | |
---|
707 | if ( roar_dl_para_ref(lhandle->para) == -1 ) |
---|
708 | return NULL; |
---|
709 | |
---|
710 | return lhandle->para; |
---|
711 | } |
---|
712 | |
---|
713 | const struct roar_dl_libraryname * roar_dl_getlibname(struct roar_dl_lhandle * lhandle) { |
---|
714 | if ( (void*)lhandle < (void*)128 ) { |
---|
715 | roar_err_set(ROAR_ERROR_NOTSUP); |
---|
716 | return NULL; |
---|
717 | } |
---|
718 | |
---|
719 | if ( lhandle->lib == NULL ) { |
---|
720 | roar_err_set(ROAR_ERROR_BADLIB); |
---|
721 | return NULL; |
---|
722 | } |
---|
723 | |
---|
724 | if ( lhandle->lib->libname == NULL ) { |
---|
725 | roar_err_set(ROAR_ERROR_NOENT); |
---|
726 | return NULL; |
---|
727 | } |
---|
728 | |
---|
729 | if ( lhandle->lib->libname->version != ROAR_DL_LIBNAME_VERSION ) { |
---|
730 | roar_err_set(ROAR_ERROR_BADVERSION); |
---|
731 | return NULL; |
---|
732 | } |
---|
733 | |
---|
734 | if ( lhandle->lib->libname->len != sizeof(struct roar_dl_libraryname) ) { |
---|
735 | roar_err_set(ROAR_ERROR_HOLE); |
---|
736 | return NULL; |
---|
737 | } |
---|
738 | |
---|
739 | return lhandle->lib->libname; |
---|
740 | } |
---|
741 | |
---|
742 | static inline void __swap_stdvios(struct roar_dl_lhandle * lhandle) { |
---|
743 | struct roar_vio_calls * vio; |
---|
744 | |
---|
745 | vio = roar_stdin; |
---|
746 | roar_stdin = lhandle->context.stdvios[0]; |
---|
747 | lhandle->context.stdvios[0] = vio; |
---|
748 | vio = roar_stdout; |
---|
749 | roar_stdout = lhandle->context.stdvios[1]; |
---|
750 | lhandle->context.stdvios[1] = vio; |
---|
751 | vio = roar_stderr; |
---|
752 | roar_stderr = lhandle->context.stdvios[2]; |
---|
753 | lhandle->context.stdvios[2] = vio; |
---|
754 | } |
---|
755 | |
---|
756 | int roar_dl_context_restore(struct roar_dl_lhandle * lhandle) { |
---|
757 | struct roar_error_state error_state; |
---|
758 | |
---|
759 | ROAR_DBG("roar_dl_context_restore(lhandle=%p) = ?", lhandle); |
---|
760 | |
---|
761 | if ( (void*)lhandle < (void*)128 ) { |
---|
762 | ROAR_DBG("roar_dl_context_restore(lhandle=%p) = -1 // errno=NOTSUP", lhandle); |
---|
763 | roar_err_set(ROAR_ERROR_NOTSUP); |
---|
764 | return -1; |
---|
765 | } |
---|
766 | |
---|
767 | roar_err_store(&error_state); |
---|
768 | roar_err_restore(&(lhandle->context.error_state)); |
---|
769 | lhandle->context.error_state = error_state; |
---|
770 | |
---|
771 | __swap_stdvios(lhandle); |
---|
772 | |
---|
773 | if ( lhandle->lib->global_data_pointer != NULL ) { |
---|
774 | ROAR_DBG("roar_dl_context_restore(lhandle=%p): gptr(%p): %p -> %p", lhandle, |
---|
775 | lhandle->lib->global_data_pointer, *(lhandle->lib->global_data_pointer), lhandle->context.global_data); |
---|
776 | lhandle->context.global_data_state = *(lhandle->lib->global_data_pointer); |
---|
777 | *(lhandle->lib->global_data_pointer) = lhandle->context.global_data; |
---|
778 | } |
---|
779 | |
---|
780 | if ( lhandle->para != NULL && lhandle->para->notifycore != NULL ) |
---|
781 | lhandle->context.notifycore = roar_notify_core_swap_global(lhandle->para->notifycore); |
---|
782 | |
---|
783 | ROAR_DBG("roar_dl_context_restore(lhandle=%p) = 0", lhandle); |
---|
784 | return 0; |
---|
785 | } |
---|
786 | |
---|
787 | int roar_dl_context_store(struct roar_dl_lhandle * lhandle) { |
---|
788 | struct roar_error_state error_state; |
---|
789 | |
---|
790 | ROAR_DBG("roar_dl_context_store(lhandle=%p) = ?", lhandle); |
---|
791 | |
---|
792 | if ( (void*)lhandle < (void*)128 ) { |
---|
793 | ROAR_DBG("roar_dl_context_store(lhandle=%p) = -1 // errno=NOTSUP", lhandle); |
---|
794 | roar_err_set(ROAR_ERROR_NOTSUP); |
---|
795 | return -1; |
---|
796 | } |
---|
797 | |
---|
798 | if ( lhandle->para != NULL && lhandle->para->notifycore != NULL ) { |
---|
799 | roar_notify_core_unref(roar_notify_core_swap_global(lhandle->context.notifycore)); |
---|
800 | roar_notify_core_unref(lhandle->context.notifycore); |
---|
801 | lhandle->context.notifycore = NULL; |
---|
802 | } |
---|
803 | |
---|
804 | if ( lhandle->lib->global_data_pointer != NULL ) { |
---|
805 | ROAR_DBG("roar_dl_context_store(lhandle=%p): gptr(%p): %p -> %p", lhandle, |
---|
806 | lhandle->lib->global_data_pointer, *(lhandle->lib->global_data_pointer), lhandle->context.global_data_state); |
---|
807 | *(lhandle->lib->global_data_pointer) = lhandle->context.global_data_state; |
---|
808 | } |
---|
809 | |
---|
810 | __swap_stdvios(lhandle); |
---|
811 | |
---|
812 | roar_err_store(&error_state); |
---|
813 | roar_err_restore(&(lhandle->context.error_state)); |
---|
814 | lhandle->context.error_state = error_state; |
---|
815 | |
---|
816 | ROAR_DBG("roar_dl_context_store(lhandle=%p) = 0", lhandle); |
---|
817 | return 0; |
---|
818 | } |
---|
819 | |
---|
820 | int roar_dl_appsched_trigger__handle_about(struct roar_dl_lhandle * lhandle) { |
---|
821 | libroar_dl_service_apitype(roar_service_about) api; |
---|
822 | int ret, err; |
---|
823 | |
---|
824 | if ( roar_dl_service_get_api(NULL, ROAR_SERVICE_ABOUT_NAME, ROAR_SERVICE_ABOUT_ABI, &api) == -1 ) |
---|
825 | return -1; |
---|
826 | |
---|
827 | ret = libroar_dl_service_run_func(api, show, int, roar_dl_getlibname(lhandle)); |
---|
828 | err = roar_error; |
---|
829 | |
---|
830 | libroar_dl_service_free_api(api); |
---|
831 | |
---|
832 | roar_error = err; |
---|
833 | return ret; |
---|
834 | } |
---|
835 | |
---|
836 | int roar_dl_appsched_trigger__handle_help(struct roar_dl_lhandle * lhandle) { |
---|
837 | libroar_dl_service_apitype(roar_service_help) api; |
---|
838 | int ret, err; |
---|
839 | |
---|
840 | if ( roar_dl_service_get_api(NULL, ROAR_SERVICE_HELP_NAME, ROAR_SERVICE_HELP_ABI, &api) == -1 ) |
---|
841 | return -1; |
---|
842 | |
---|
843 | ret = libroar_dl_service_run_func(api, show, int, roar_dl_getlibname(lhandle), NULL); |
---|
844 | err = roar_error; |
---|
845 | |
---|
846 | libroar_dl_service_free_api(api); |
---|
847 | |
---|
848 | roar_error = err; |
---|
849 | return ret; |
---|
850 | } |
---|
851 | |
---|
852 | int roar_dl_appsched_trigger__handle_preferences(struct roar_dl_lhandle * lhandle) { |
---|
853 | roar_err_set(ROAR_ERROR_NOSYS); |
---|
854 | return -1; |
---|
855 | } |
---|
856 | |
---|
857 | int roar_dl_appsched_trigger(struct roar_dl_lhandle * lhandle, enum roar_dl_appsched_trigger trigger) { |
---|
858 | int (*func) (struct roar_dl_librarypara * para) = NULL; |
---|
859 | int ret; |
---|
860 | |
---|
861 | if ( (void*)lhandle < (void*)128 ) { |
---|
862 | roar_err_set(ROAR_ERROR_NOTSUP); |
---|
863 | return -1; |
---|
864 | } |
---|
865 | |
---|
866 | if ( lhandle->lib == NULL ) { |
---|
867 | roar_err_set(ROAR_ERROR_TYPEMM); |
---|
868 | return -1; |
---|
869 | } |
---|
870 | |
---|
871 | if ( lhandle->lib->appsched == NULL ) { |
---|
872 | roar_err_set(ROAR_ERROR_NOENT); |
---|
873 | return -1; |
---|
874 | } |
---|
875 | |
---|
876 | switch (trigger) { |
---|
877 | #define _trig(lname,uname) \ |
---|
878 | case ROAR_DL_APPSCHED_ ## uname : \ |
---|
879 | func = lhandle->lib->appsched->lname; \ |
---|
880 | break; |
---|
881 | _trig(init, INIT); |
---|
882 | _trig(free, FREE); |
---|
883 | _trig(update, UPDATE); |
---|
884 | _trig(tick, TICK); |
---|
885 | _trig(wait, WAIT); |
---|
886 | |
---|
887 | // not yet supported by struct roar_dl_appsched. |
---|
888 | case ROAR_DL_APPSCHED_ABOUT: |
---|
889 | case ROAR_DL_APPSCHED_HELP: |
---|
890 | case ROAR_DL_APPSCHED_PREFERENCES: |
---|
891 | func = NULL; |
---|
892 | break; |
---|
893 | // use ifndef here so warnings of unhandled enum values will be shown in DEBUG mode. |
---|
894 | #ifndef DEBUG |
---|
895 | default: |
---|
896 | roar_err_set(ROAR_ERROR_BADRQC); |
---|
897 | return -1; |
---|
898 | break; |
---|
899 | #endif |
---|
900 | } |
---|
901 | |
---|
902 | if ( func == NULL ) { |
---|
903 | if ( trigger == ROAR_DL_APPSCHED_INIT ) { |
---|
904 | lhandle->runtime_flags |= RTF_APPSCHED_INITED|RTF_APPSCHED_FREED; |
---|
905 | lhandle->runtime_flags -= RTF_APPSCHED_FREED; |
---|
906 | } else if ( trigger == ROAR_DL_APPSCHED_FREE ) { |
---|
907 | lhandle->runtime_flags |= RTF_APPSCHED_INITED|RTF_APPSCHED_FREED; |
---|
908 | lhandle->runtime_flags -= RTF_APPSCHED_INITED; |
---|
909 | } |
---|
910 | switch (trigger) { |
---|
911 | case ROAR_DL_APPSCHED_ABOUT: |
---|
912 | return roar_dl_appsched_trigger__handle_about(lhandle); |
---|
913 | break; |
---|
914 | case ROAR_DL_APPSCHED_HELP: |
---|
915 | return roar_dl_appsched_trigger__handle_help(lhandle); |
---|
916 | break; |
---|
917 | case ROAR_DL_APPSCHED_PREFERENCES: |
---|
918 | return roar_dl_appsched_trigger__handle_preferences(lhandle); |
---|
919 | break; |
---|
920 | default: |
---|
921 | roar_err_set(ROAR_ERROR_NOENT); |
---|
922 | return -1; |
---|
923 | break; |
---|
924 | } |
---|
925 | } |
---|
926 | |
---|
927 | if ( trigger == ROAR_DL_APPSCHED_INIT ) { |
---|
928 | if ( lhandle->runtime_flags & RTF_APPSCHED_INITED ) { |
---|
929 | roar_err_set(ROAR_ERROR_BUSY); |
---|
930 | return -1; |
---|
931 | } |
---|
932 | } else { |
---|
933 | if ( !(lhandle->runtime_flags & RTF_APPSCHED_INITED) ) { |
---|
934 | roar_err_set(ROAR_ERROR_BUSY); |
---|
935 | return -1; |
---|
936 | } |
---|
937 | } |
---|
938 | |
---|
939 | roar_dl_context_restore(lhandle); |
---|
940 | ret = func(lhandle->para); |
---|
941 | roar_dl_context_store(lhandle); |
---|
942 | |
---|
943 | if ( trigger == ROAR_DL_APPSCHED_INIT ) { |
---|
944 | lhandle->runtime_flags |= RTF_APPSCHED_INITED|RTF_APPSCHED_FREED; |
---|
945 | lhandle->runtime_flags -= RTF_APPSCHED_FREED; |
---|
946 | } else if ( trigger == ROAR_DL_APPSCHED_FREE ) { |
---|
947 | lhandle->runtime_flags |= RTF_APPSCHED_INITED|RTF_APPSCHED_FREED; |
---|
948 | lhandle->runtime_flags -= RTF_APPSCHED_INITED; |
---|
949 | } |
---|
950 | |
---|
951 | return ret; |
---|
952 | } |
---|
953 | |
---|
954 | |
---|
955 | #define __MAX_FNREGS 24 |
---|
956 | static struct __fnregs { |
---|
957 | struct roar_dl_lhandle * lhandle; |
---|
958 | int subtype; |
---|
959 | const void * object; |
---|
960 | size_t objectlen; |
---|
961 | int version; |
---|
962 | int options; |
---|
963 | } __fnrefs[ROAR_DL_FN_MAX][__MAX_FNREGS]; |
---|
964 | |
---|
965 | static int __fnreg_check_trigger(const struct __fnregs * handle) { |
---|
966 | if ( handle->subtype != ROAR_DL_FNREG_SUBTYPE ) |
---|
967 | return -1; |
---|
968 | if ( handle->version != ROAR_DL_FNREG_VERSION ) |
---|
969 | return -1; |
---|
970 | if ( handle->objectlen != ROAR_DL_FNREG_SIZE ) |
---|
971 | return -1; |
---|
972 | |
---|
973 | return 0; |
---|
974 | } |
---|
975 | |
---|
976 | static void __fnreg_trigger_if_match(const struct roar_dl_fnreg * callback, |
---|
977 | const struct __fnregs * reg, |
---|
978 | int fn, |
---|
979 | enum roar_dl_fnreg_action action) { |
---|
980 | if ( callback->fn != -1 && callback->fn != fn ) |
---|
981 | return; |
---|
982 | if ( callback->subtype != -1 && callback->subtype != reg->subtype ) |
---|
983 | return; |
---|
984 | if ( callback->version != -1 && callback->version != reg->version ) |
---|
985 | return; |
---|
986 | |
---|
987 | if ( callback->callback == NULL ) |
---|
988 | return; |
---|
989 | |
---|
990 | callback->callback(action, fn, reg->subtype, reg->object, reg->objectlen, reg->version, reg->options, callback->userdata, reg->lhandle); |
---|
991 | } |
---|
992 | |
---|
993 | static void __fnreg_trigger_by_reg(const struct __fnregs * reg, enum roar_dl_fnreg_action action, int fn) { |
---|
994 | size_t j; |
---|
995 | |
---|
996 | for (j = 0; j < __MAX_FNREGS; j++) { |
---|
997 | if ( __fnrefs[ROAR_DL_FN_REGFN][j].lhandle != NULL ) { |
---|
998 | if ( __fnreg_check_trigger(&(__fnrefs[ROAR_DL_FN_REGFN][j])) == -1 ) |
---|
999 | continue; |
---|
1000 | __fnreg_trigger_if_match(__fnrefs[ROAR_DL_FN_REGFN][j].object, reg, fn, action); |
---|
1001 | } |
---|
1002 | } |
---|
1003 | } |
---|
1004 | |
---|
1005 | static void __fnreg_trigger_by_handler(const struct __fnregs * handle, enum roar_dl_fnreg_action action) { |
---|
1006 | size_t i, j; |
---|
1007 | |
---|
1008 | if ( __fnreg_check_trigger(handle) == -1 ) |
---|
1009 | return; |
---|
1010 | |
---|
1011 | for (i = 0; i < ROAR_DL_FN_MAX; i++) { |
---|
1012 | for (j = 0; j < __MAX_FNREGS; j++) { |
---|
1013 | if ( __fnrefs[i][j].lhandle != NULL ) { |
---|
1014 | __fnreg_trigger_if_match(handle->object, &(__fnrefs[i][j]), i, action); |
---|
1015 | } |
---|
1016 | } |
---|
1017 | } |
---|
1018 | } |
---|
1019 | |
---|
1020 | int roar_dl_register_fn(struct roar_dl_lhandle * lhandle, int fn, int subtype, const void * object, size_t objectlen, int version, int options) { |
---|
1021 | struct __fnregs * c = NULL; |
---|
1022 | size_t i; |
---|
1023 | |
---|
1024 | if ( lhandle == NULL ) |
---|
1025 | lhandle = __currently_inited; |
---|
1026 | |
---|
1027 | if ( fn == -1 ) |
---|
1028 | fn = __currently_inited_fn; |
---|
1029 | |
---|
1030 | if ( lhandle == NULL ) { |
---|
1031 | roar_err_set(ROAR_ERROR_FAULT); |
---|
1032 | return -1; |
---|
1033 | } |
---|
1034 | |
---|
1035 | if ( fn < 0 || fn >= ROAR_DL_FN_MAX ) { |
---|
1036 | roar_err_set(ROAR_ERROR_RANGE); |
---|
1037 | return -1; |
---|
1038 | } |
---|
1039 | |
---|
1040 | if ( object == NULL || objectlen == 0 ) { |
---|
1041 | roar_err_set(ROAR_ERROR_INVAL); |
---|
1042 | return -1; |
---|
1043 | } |
---|
1044 | |
---|
1045 | for (i = 0; i < __MAX_FNREGS; i++) { |
---|
1046 | if ( __fnrefs[fn][i].lhandle != NULL ) |
---|
1047 | continue; |
---|
1048 | c = &(__fnrefs[fn][i]); |
---|
1049 | break; |
---|
1050 | } |
---|
1051 | |
---|
1052 | if ( c == NULL ) { |
---|
1053 | roar_err_set(ROAR_ERROR_NOSPC); |
---|
1054 | return -1; |
---|
1055 | } |
---|
1056 | |
---|
1057 | c->lhandle = lhandle; |
---|
1058 | c->subtype = subtype; |
---|
1059 | c->object = object; |
---|
1060 | c->objectlen = objectlen; |
---|
1061 | c->version = version; |
---|
1062 | |
---|
1063 | if ( fn == ROAR_DL_FN_REGFN ) { |
---|
1064 | __fnreg_trigger_by_handler(c, ROAR_DL_FNREG); |
---|
1065 | } else { |
---|
1066 | __fnreg_trigger_by_reg(c, ROAR_DL_FNREG, fn); |
---|
1067 | } |
---|
1068 | |
---|
1069 | return 0; |
---|
1070 | } |
---|
1071 | |
---|
1072 | int roar_dl_unregister_fn2(struct roar_dl_lhandle * lhandle, int fn, int subtype, const void * object, size_t objectlen, int version, int options) { |
---|
1073 | struct __fnregs * c = NULL; |
---|
1074 | size_t i, j; |
---|
1075 | |
---|
1076 | if ( lhandle == NULL ) { |
---|
1077 | roar_err_set(ROAR_ERROR_FAULT); |
---|
1078 | return -1; |
---|
1079 | } |
---|
1080 | |
---|
1081 | for (i = 0; i < ROAR_DL_FN_MAX; i++) { |
---|
1082 | if ( fn != -1 && fn != i ) |
---|
1083 | continue; |
---|
1084 | |
---|
1085 | for (j = 0; j < __MAX_FNREGS; j++) { |
---|
1086 | c = &(__fnrefs[i][j]); |
---|
1087 | |
---|
1088 | if ( c->lhandle != lhandle ) |
---|
1089 | continue; |
---|
1090 | |
---|
1091 | if ( subtype != -1 && subtype != c->subtype ) |
---|
1092 | continue; |
---|
1093 | if ( object != NULL && object != c->object ) |
---|
1094 | continue; |
---|
1095 | if ( objectlen != (size_t)-1 && objectlen != c->objectlen ) |
---|
1096 | continue; |
---|
1097 | if ( version != -1 && version != c->version ) |
---|
1098 | continue; |
---|
1099 | if ( options != -1 && options != c->options ) |
---|
1100 | continue; |
---|
1101 | |
---|
1102 | if ( i == ROAR_DL_FN_REGFN ) { |
---|
1103 | __fnreg_trigger_by_handler(&(__fnrefs[i][j]), ROAR_DL_FNUNREG); |
---|
1104 | } else { |
---|
1105 | __fnreg_trigger_by_reg(&(__fnrefs[i][j]), ROAR_DL_FNUNREG, i); |
---|
1106 | } |
---|
1107 | memset(&(__fnrefs[i][j]), 0, sizeof(__fnrefs[i][j])); |
---|
1108 | __fnrefs[i][j].lhandle = NULL; |
---|
1109 | } |
---|
1110 | } |
---|
1111 | |
---|
1112 | return 0; |
---|
1113 | } |
---|
1114 | |
---|
1115 | int roar_dl_unregister_fn(struct roar_dl_lhandle * lhandle) { |
---|
1116 | return roar_dl_unregister_fn2(lhandle, -1, -1, NULL, (size_t)-1, -1, -1); |
---|
1117 | } |
---|
1118 | |
---|
1119 | |
---|
1120 | int roar_dl_query_fn(struct roar_dl_lhandle ** lhandle, int fn, int subtype, const void ** object, size_t * objectlen, int version, int * options, ssize_t index) { |
---|
1121 | struct __fnregs * c = NULL; |
---|
1122 | ssize_t found = 0; |
---|
1123 | size_t j; |
---|
1124 | |
---|
1125 | if ( lhandle == NULL || object == NULL || objectlen == NULL || options == NULL ) { |
---|
1126 | roar_err_set(ROAR_ERROR_FAULT); |
---|
1127 | return -1; |
---|
1128 | } |
---|
1129 | |
---|
1130 | if ( fn <= 0 || fn >= ROAR_DL_FN_MAX || index < 0 || index >= __MAX_FNREGS ) { |
---|
1131 | roar_err_set(ROAR_ERROR_INVAL); |
---|
1132 | return -1; |
---|
1133 | } |
---|
1134 | |
---|
1135 | for (j = 0; j < __MAX_FNREGS; j++) { |
---|
1136 | c = &(__fnrefs[fn][j]); |
---|
1137 | |
---|
1138 | if ( c->lhandle == NULL ) |
---|
1139 | continue; |
---|
1140 | if ( c->subtype != subtype ) |
---|
1141 | continue; |
---|
1142 | if ( c->version != version ) |
---|
1143 | continue; |
---|
1144 | |
---|
1145 | if ( index == found++ ) { |
---|
1146 | *lhandle = c->lhandle; |
---|
1147 | *object = c->object; |
---|
1148 | *objectlen = c->objectlen; |
---|
1149 | *options = c->options; |
---|
1150 | return 0; |
---|
1151 | } |
---|
1152 | } |
---|
1153 | |
---|
1154 | roar_err_set(ROAR_ERROR_NOENT); |
---|
1155 | return -1; |
---|
1156 | } |
---|
1157 | |
---|
1158 | static inline int __load_plugin_any_get_api(struct roar_dl_librarypara * para, const char * appname, const char * appabi, const char * servicename, const char * serviceabi, int universal, struct roar_dl_service_api * api) { |
---|
1159 | struct roar_dl_lhandle * lhandle = NULL; |
---|
1160 | struct roar_dl_librarypara * mypara = NULL; |
---|
1161 | char name[80]; |
---|
1162 | int err; |
---|
1163 | int ret; |
---|
1164 | |
---|
1165 | mypara = roar_dl_para_new(NULL, NULL, LIBROAR_DL_APPNAME, LIBROAR_DL_ABIVERSION); |
---|
1166 | if ( mypara == NULL ) |
---|
1167 | return -1; |
---|
1168 | |
---|
1169 | if ( serviceabi != NULL ) { |
---|
1170 | snprintf(name, sizeof(name), "service-%s-%s", servicename, serviceabi); |
---|
1171 | lhandle = roar_dl_open(name, ROAR_DL_FLAG_PLUGIN, 1, mypara); |
---|
1172 | } |
---|
1173 | |
---|
1174 | if ( lhandle == NULL ) { |
---|
1175 | snprintf(name, sizeof(name), "service-%s", servicename); |
---|
1176 | lhandle = roar_dl_open(name, ROAR_DL_FLAG_PLUGIN, 1, mypara); |
---|
1177 | } |
---|
1178 | |
---|
1179 | err = roar_error; |
---|
1180 | roar_dl_para_unref(mypara); |
---|
1181 | roar_error = err; |
---|
1182 | |
---|
1183 | if ( lhandle == NULL ) |
---|
1184 | return -1; |
---|
1185 | |
---|
1186 | roar_dl_appsched_trigger(lhandle, ROAR_DL_APPSCHED_INIT); |
---|
1187 | |
---|
1188 | ret = libroar_dl_service_get_api_real(para, appname, appabi, servicename, serviceabi, universal, api, 0); |
---|
1189 | |
---|
1190 | err = roar_error; |
---|
1191 | roar_dl_appsched_trigger(lhandle, ROAR_DL_APPSCHED_FREE); |
---|
1192 | roar_dl_unref(lhandle); |
---|
1193 | roar_error = err; |
---|
1194 | |
---|
1195 | return ret; |
---|
1196 | } |
---|
1197 | |
---|
1198 | int libroar_dl_service_get_api_real(struct roar_dl_librarypara * para, const char * appname, const char * appabi, const char * servicename, const char * serviceabi, int universal, struct roar_dl_service_api * api, int retry) { |
---|
1199 | const struct roar_dl_service * s; |
---|
1200 | struct __fnregs * c = NULL; |
---|
1201 | size_t i; |
---|
1202 | int err; |
---|
1203 | |
---|
1204 | if ( servicename == NULL || serviceabi == NULL || api == NULL ) { |
---|
1205 | roar_err_set(ROAR_ERROR_FAULT); |
---|
1206 | return -1; |
---|
1207 | } |
---|
1208 | |
---|
1209 | if ( para != NULL ) { |
---|
1210 | if ( roar_dl_para_ref(para) == -1 ) |
---|
1211 | return -1; |
---|
1212 | } else { |
---|
1213 | para = roar_dl_para_new(NULL, NULL, NULL, NULL); |
---|
1214 | if ( para == NULL ) |
---|
1215 | return -1; |
---|
1216 | } |
---|
1217 | |
---|
1218 | memset(api, 0, sizeof(struct roar_dl_service_api)); |
---|
1219 | |
---|
1220 | for (i = 0; i < __MAX_FNREGS; i++) { |
---|
1221 | c = &(__fnrefs[ROAR_DL_FN_SERVICE][i]); |
---|
1222 | s = c->object; |
---|
1223 | |
---|
1224 | if ( c->lhandle == NULL ) |
---|
1225 | continue; |
---|
1226 | |
---|
1227 | if ( c->subtype != ROAR_DL_SERVICE_SUBTYPE ) |
---|
1228 | continue; |
---|
1229 | if ( c->objectlen != ROAR_DL_SERVICE_SIZE ) |
---|
1230 | continue; |
---|
1231 | if ( c->version != ROAR_DL_SERVICE_VERSION ) |
---|
1232 | continue; |
---|
1233 | |
---|
1234 | if ( !universal && s->appname == NULL ) |
---|
1235 | continue; |
---|
1236 | if ( universal == 2 && s->appname != NULL ) |
---|
1237 | continue; |
---|
1238 | if ( s->appname != NULL && !!strcmp(s->appname, appname) ) |
---|
1239 | continue; |
---|
1240 | if ( (s->appabi == NULL && appabi != NULL) || (s->appabi != NULL && appabi == NULL) || |
---|
1241 | (s->appabi != NULL && appabi != NULL && !!strcmp(s->appabi, appabi) ) ) |
---|
1242 | continue; |
---|
1243 | if ( s->servicename == NULL || !!strcmp(s->servicename, servicename) ) |
---|
1244 | continue; |
---|
1245 | if ( s->serviceabi == NULL || !!strcmp(s->serviceabi, serviceabi) ) |
---|
1246 | continue; |
---|
1247 | |
---|
1248 | if ( s->get_api == NULL ) |
---|
1249 | continue; |
---|
1250 | |
---|
1251 | if ( roar_dl_ref(c->lhandle) != 0 ) |
---|
1252 | continue; |
---|
1253 | |
---|
1254 | api->service = s; |
---|
1255 | api->lhandle = c->lhandle; |
---|
1256 | |
---|
1257 | api->api = s->get_api(s, para); |
---|
1258 | if ( api->api == NULL ) { |
---|
1259 | err = roar_error; |
---|
1260 | roar_dl_unref(c->lhandle); |
---|
1261 | roar_dl_para_unref(para); |
---|
1262 | api->lhandle = NULL; |
---|
1263 | roar_error = err; |
---|
1264 | return -1; |
---|
1265 | } |
---|
1266 | |
---|
1267 | roar_dl_para_unref(para); |
---|
1268 | return 0; |
---|
1269 | } |
---|
1270 | |
---|
1271 | if ( retry ) { |
---|
1272 | if ( __load_plugin_any_get_api(para, appname, appabi, servicename, serviceabi, universal, api) == 0 ) { |
---|
1273 | roar_dl_para_unref(para); |
---|
1274 | return 0; |
---|
1275 | } |
---|
1276 | } |
---|
1277 | |
---|
1278 | roar_dl_para_unref(para); |
---|
1279 | roar_err_set(ROAR_ERROR_NOENT); |
---|
1280 | return -1; |
---|
1281 | } |
---|
1282 | |
---|
1283 | int libroar_dl_service_free_api_real(struct roar_dl_service_api * api) { |
---|
1284 | if ( api == NULL ) { |
---|
1285 | roar_err_set(ROAR_ERROR_FAULT); |
---|
1286 | return -1; |
---|
1287 | } |
---|
1288 | |
---|
1289 | roar_dl_unref(api->lhandle); |
---|
1290 | |
---|
1291 | memset(api, 0, sizeof(struct roar_dl_service_api)); |
---|
1292 | |
---|
1293 | return 0; |
---|
1294 | } |
---|
1295 | |
---|
1296 | //ll |
---|