[3297] | 1 | //roardl.c: |
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| 2 | |
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| 3 | /* |
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[5381] | 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2010-2012 |
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[3297] | 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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[3517] | 21 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
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| 22 | * Boston, MA 02110-1301, USA. |
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[3297] | 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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[5427] | 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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[3367] | 42 | #if defined(ROAR_HAVE_LIBDL) && !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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[5503] | 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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[5275] | 50 | struct roar_dl_lhandle { |
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[5317] | 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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[5275] | 54 | struct roar_dl_librarypara * para; |
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| 55 | struct roar_dl_libraryinst * lib; |
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[5312] | 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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[5317] | 60 | struct roar_notify_core * notifycore; |
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[5312] | 61 | } context; |
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[5503] | 62 | unsigned int runtime_flags; |
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[5275] | 63 | #if defined(ROAR_HAVE_LIBDL) |
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| 64 | void * handle; |
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[5481] | 65 | #elif defined(ROAR_TARGET_WIN32) |
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| 66 | HMODULE handle; |
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[5275] | 67 | #endif |
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| 68 | }; |
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| 69 | |
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[5511] | 70 | // TODO: this should be removed on next SONAME change. |
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| 71 | static struct roar_dl_lhandle * __currently_inited = NULL; |
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[5275] | 72 | |
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| 73 | struct roar_dl_librarypara * roar_dl_para_new(const char * args, void * binargv, |
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| 74 | const char * appname, const char * abiversion) { |
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| 75 | struct roar_dl_librarypara * ret = roar_mm_malloc(sizeof(struct roar_dl_librarypara)); |
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| 76 | ssize_t argc; |
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| 77 | int err; |
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| 78 | |
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| 79 | if ( ret == NULL ) |
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| 80 | return NULL; |
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| 81 | |
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| 82 | memset(ret, 0, sizeof(struct roar_dl_librarypara)); |
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| 83 | |
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| 84 | ret->version = ROAR_DL_LIBPARA_VERSION; |
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| 85 | ret->len = sizeof(struct roar_dl_librarypara); |
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| 86 | ret->refc = 1; |
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| 87 | ret->argc = 0; |
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| 88 | ret->argv = NULL; |
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| 89 | ret->args_store = NULL; |
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| 90 | ret->binargv = binargv; |
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| 91 | ret->appname = appname; |
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| 92 | ret->abiversion = abiversion; |
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| 93 | |
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| 94 | if ( args != NULL ) { |
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| 95 | ret->args_store = roar_mm_strdup(args); |
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| 96 | if ( ret->args_store == NULL ) { |
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| 97 | err = roar_error; |
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| 98 | roar_mm_free(ret); |
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| 99 | roar_error = err; |
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| 100 | return NULL; |
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| 101 | } |
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| 102 | |
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[5482] | 103 | argc = roar_keyval_split(&(ret->argv), ret->args_store, NULL, NULL, 1); |
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[5275] | 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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[5438] | 120 | ROAR_DBG("roar_dl_para_ref(para=%p) = -1 // error=FAULT", para); |
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[5275] | 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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[5438] | 127 | ROAR_DBG("roar_dl_para_ref(para=%p) = 0", para); |
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[5275] | 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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[5438] | 133 | ROAR_DBG("roar_dl_para_unref(para=%p) = -1 // error=FAULT", para); |
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[5275] | 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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[5438] | 140 | if ( para->refc ) { |
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| 141 | ROAR_DBG("roar_dl_para_unref(para=%p) = 0", para); |
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[5317] | 142 | return 0; |
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[5438] | 143 | } |
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[5317] | 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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[5275] | 151 | } |
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| 152 | |
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[5317] | 153 | roar_mm_free(para); |
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| 154 | |
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[5438] | 155 | ROAR_DBG("roar_dl_para_unref(para=%p) = 0", para); |
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[5275] | 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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[5371] | 167 | roar_err_set(ROAR_ERROR_BADHOST); |
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[5275] | 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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[5371] | 173 | roar_err_set(ROAR_ERROR_BADHOST); |
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[5275] | 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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[3297] | 193 | #if defined(ROAR_HAVE_LIBDL) |
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| 194 | static void * _roardl2ldl (struct roar_dl_lhandle * lhandle) { |
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[5317] | 195 | ROAR_DBG("_roardl2ldl(lhandle=%p) = ?", lhandle); |
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| 196 | |
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[5511] | 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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[5317] | 210 | } |
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[3297] | 211 | |
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[5317] | 212 | ROAR_DBG("_roardl2ldl(lhandle=%p) = %p", lhandle, (void*)(lhandle->handle)); |
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[3297] | 213 | return lhandle->handle; |
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| 214 | } |
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[5481] | 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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[3297] | 222 | #endif |
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| 223 | |
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[5427] | 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 | char * c, * d; |
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| 278 | |
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| 279 | if ( para != NULL && para->appname != NULL && para->appname[0] != 0 ) { |
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| 280 | host = roar_mm_strdup(para->appname); |
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| 281 | |
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| 282 | // if we are out of memory we will likely not pass the rest, so just return in error. |
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| 283 | if ( host == NULL ) |
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| 284 | return NULL; |
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| 285 | |
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| 286 | hostname = host; |
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| 287 | c = strstr(host, "<"); |
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| 288 | if ( c != NULL ) { |
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| 289 | while (c[-1] == ' ') c--; |
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| 290 | *c = 0; |
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| 291 | c++; |
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| 292 | while (*c == ' ' || *c == '<') c++; |
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| 293 | if ( *c ) { |
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| 294 | d = strstr(c, ">"); |
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| 295 | if ( d != NULL ) |
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| 296 | *d = 0; |
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| 297 | |
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| 298 | d = strstr(c, "/"); |
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| 299 | if ( d != NULL ) { |
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| 300 | *d = '-'; |
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| 301 | hostvendor = c; |
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| 302 | } else { |
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| 303 | hostvendor_buffer = roar_mm_malloc(roar_mm_strlen(c) + 1 /* tailing \0 */ + 6 /* "unreg-" */); |
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| 304 | |
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| 305 | // see above |
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| 306 | if ( hostvendor_buffer == NULL ) { |
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| 307 | roar_mm_free(host); |
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| 308 | return NULL; |
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| 309 | } |
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| 310 | |
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| 311 | strcpy(hostvendor_buffer, "unreg-"); |
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| 312 | strcat(hostvendor_buffer, c); |
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| 313 | hostvendor = hostvendor_buffer; |
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| 314 | } |
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| 315 | } |
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| 316 | } |
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| 317 | } |
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| 318 | |
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| 319 | if ( hostvendor == NULL ) |
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| 320 | hostvendor = "universal"; |
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| 321 | |
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| 322 | if ( hostname == NULL ) |
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| 323 | hostname = "universal"; |
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| 324 | |
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| 325 | ret = _load_from_path_pvn(name, flags, ra_init, para, ROAR_PREFIX_PLUGINS, hostvendor, hostname); |
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| 326 | |
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| 327 | if ( host != NULL ) |
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| 328 | roar_mm_free(host); |
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| 329 | if ( hostvendor_buffer != NULL ) |
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| 330 | roar_mm_free(hostvendor_buffer); |
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| 331 | return ret; |
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| 332 | } |
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| 333 | #endif |
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| 334 | |
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| 335 | static struct roar_dl_lhandle * _roar_dl_open_pluginpath(const char * filename, int flags, |
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| 336 | int ra_init, struct roar_dl_librarypara * para) { |
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| 337 | flags |= ROAR_DL_FLAG_PLUGINPATH; |
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| 338 | flags -= ROAR_DL_FLAG_PLUGINPATH; |
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| 339 | |
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| 340 | #ifdef ROAR_HAVE_H_DIRENT |
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[5430] | 341 | // do normal open for everything with a path name. |
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| 342 | if ( strstr(filename, "/") != NULL ) |
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| 343 | return roar_dl_open(filename, flags, ra_init, para); |
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| 344 | |
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[5427] | 345 | return _load_from_path(filename, flags, ra_init, para); |
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| 346 | #else |
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| 347 | // fall back to system open function. |
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| 348 | return roar_dl_open(filename, flags, ra_init, para); |
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| 349 | #endif |
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| 350 | } |
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| 351 | |
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[5275] | 352 | struct roar_dl_lhandle * roar_dl_open(const char * filename, int flags, |
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| 353 | int ra_init, struct roar_dl_librarypara * para) { |
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[3298] | 354 | struct roar_dl_lhandle * ret = NULL; |
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[5317] | 355 | #if defined(ROAR_HAVE_LIBDL) |
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| 356 | #ifdef RTLD_DEEPBIND |
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[5344] | 357 | int libdl_flags = RTLD_DEEPBIND; |
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[5317] | 358 | #else |
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[5344] | 359 | int libdl_flags = 0; |
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[5317] | 360 | #endif |
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| 361 | #endif |
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[5275] | 362 | int err; |
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[3298] | 363 | |
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[5427] | 364 | switch (flags) { |
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| 365 | case ROAR_DL_FLAG_DEFAULTS: flags = ROAR_DL_FLAG_NONE; break; |
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| 366 | case ROAR_DL_FLAG_PLUGIN: flags = ROAR_DL_FLAG_PLUGINPATH; break; |
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| 367 | } |
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| 368 | |
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| 369 | if ( flags & ROAR_DL_FLAG_PLUGINPATH ) |
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| 370 | return _roar_dl_open_pluginpath(filename, flags, ra_init, para); |
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[3304] | 371 | |
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[5344] | 372 | #if defined(ROAR_HAVE_LIBDL) |
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| 373 | if ( flags & ROAR_DL_FLAG_LAZY ) { |
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| 374 | libdl_flags |= RTLD_LAZY; |
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| 375 | } else { |
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| 376 | libdl_flags |= RTLD_NOW; |
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| 377 | } |
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| 378 | #endif |
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| 379 | |
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[3304] | 380 | if ( (ret = roar_mm_malloc(sizeof(struct roar_dl_lhandle))) == NULL ) |
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| 381 | return NULL; |
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| 382 | |
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| 383 | memset(ret, 0, sizeof(struct roar_dl_lhandle)); |
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| 384 | |
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[5312] | 385 | roar_err_initstore(&(ret->context.error_state)); |
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| 386 | |
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[5317] | 387 | ret->flags = flags; |
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[5321] | 388 | ret->refc = 1; |
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[3366] | 389 | |
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[5317] | 390 | if ( flags & ROAR_DL_FLAG_STATIC ) { |
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| 391 | if ( filename == NULL ) { |
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| 392 | ret->libname = NULL; |
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| 393 | } else { |
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| 394 | ret->libname = roar_mm_strdup(filename); |
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| 395 | } |
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| 396 | } else { |
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| 397 | #if defined(ROAR_HAVE_LIBDL) |
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| 398 | ret->handle = dlopen(filename, libdl_flags); |
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[3304] | 399 | |
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[5317] | 400 | if ( ret->handle == NULL ) { |
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| 401 | 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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| 402 | roar_mm_free(ret); |
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| 403 | return NULL; |
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| 404 | } |
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[5481] | 405 | #elif defined(ROAR_TARGET_WIN32) |
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| 406 | ret->handle = LoadLibrary(filename); |
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| 407 | |
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| 408 | if ( ret->handle == NULL ) { |
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| 409 | roar_mm_free(ret); |
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| 410 | return NULL; |
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| 411 | } |
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[3304] | 412 | #else |
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[5317] | 413 | roar_mm_free(ret); |
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| 414 | roar_err_set(ROAR_ERROR_NOSYS); |
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| 415 | return NULL; |
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[3304] | 416 | #endif |
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[5317] | 417 | } |
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[3304] | 418 | |
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[5275] | 419 | ret->para = para; |
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[3298] | 420 | |
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| 421 | if ( ra_init ) { |
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[5275] | 422 | if ( roar_dl_ra_init(ret, NULL, para) == -1 ) { |
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| 423 | err = roar_error; |
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| 424 | 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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| 425 | #if defined(ROAR_HAVE_LIBDL) |
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[5317] | 426 | if ( ret->handle != NULL ) |
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| 427 | dlclose(ret->handle); |
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[5481] | 428 | #elif defined(ROAR_TARGET_WIN32) |
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| 429 | if ( ret->handle != NULL ) |
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| 430 | FreeLibrary(ret->handle); |
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[5275] | 431 | #endif |
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| 432 | roar_mm_free(ret); |
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| 433 | roar_error = err; |
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| 434 | return NULL; |
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| 435 | } |
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[3298] | 436 | } |
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| 437 | |
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[5275] | 438 | if ( para != NULL ) |
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| 439 | roar_dl_para_ref(para); |
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| 440 | |
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[3298] | 441 | return ret; |
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[3297] | 442 | } |
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| 443 | |
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[5321] | 444 | int roar_dl_ref (struct roar_dl_lhandle * lhandle) { |
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| 445 | if ( (void*)lhandle < (void*)128 ) { |
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[5438] | 446 | ROAR_DBG("roar_dl_ref(lhandle=%p) = -1 // error=BADFH", lhandle); |
---|
[5275] | 447 | roar_err_set(ROAR_ERROR_BADFH); |
---|
[3301] | 448 | return -1; |
---|
[5275] | 449 | } |
---|
[3301] | 450 | |
---|
[5321] | 451 | lhandle->refc++; |
---|
| 452 | |
---|
[5438] | 453 | ROAR_DBG("roar_dl_ref(lhandle=%p) = 0", lhandle); |
---|
[5321] | 454 | return 0; |
---|
| 455 | } |
---|
| 456 | |
---|
| 457 | int roar_dl_unref (struct roar_dl_lhandle * lhandle) { |
---|
| 458 | int ret = -1; |
---|
| 459 | |
---|
| 460 | if ( (void*)lhandle < (void*)128 ) { |
---|
[5438] | 461 | ROAR_DBG("roar_dl_unref(lhandle=%p) = -1 // error=BADFH", lhandle); |
---|
[5321] | 462 | roar_err_set(ROAR_ERROR_BADFH); |
---|
| 463 | return -1; |
---|
| 464 | } |
---|
| 465 | |
---|
[5438] | 466 | lhandle->refc--; |
---|
[5321] | 467 | |
---|
[5438] | 468 | if ( lhandle->refc ) { |
---|
| 469 | ROAR_DBG("roar_dl_unref(lhandle=%p) = 0", lhandle); |
---|
[5321] | 470 | return 0; |
---|
[5438] | 471 | } |
---|
[5321] | 472 | |
---|
[5511] | 473 | roar_dl_unregister_fn(lhandle); |
---|
| 474 | |
---|
[5317] | 475 | if ( lhandle->lib != NULL && lhandle->lib->unload != NULL ) { |
---|
| 476 | roar_dl_context_restore(lhandle); |
---|
[3301] | 477 | lhandle->lib->unload(lhandle->para, lhandle->lib); |
---|
[5317] | 478 | roar_dl_context_store(lhandle); |
---|
| 479 | } |
---|
[3301] | 480 | |
---|
[3297] | 481 | #if defined(ROAR_HAVE_LIBDL) |
---|
[5317] | 482 | if ( lhandle->handle == NULL ) { |
---|
| 483 | ret = 0; |
---|
| 484 | } else { |
---|
| 485 | ret = dlclose(_roardl2ldl(lhandle)); |
---|
| 486 | } |
---|
[5481] | 487 | #elif defined(ROAR_TARGET_WIN32) |
---|
| 488 | if ( lhandle->handle == NULL ) { |
---|
| 489 | ret = 0; |
---|
| 490 | } else { |
---|
| 491 | if ( FreeLibrary(_roardl2winhandle(lhandle)) ) { |
---|
| 492 | ret = 0; |
---|
| 493 | } else { |
---|
| 494 | ret = -1; |
---|
| 495 | } |
---|
| 496 | } |
---|
[3297] | 497 | #else |
---|
[3304] | 498 | ret = -1; |
---|
[3297] | 499 | #endif |
---|
[3304] | 500 | |
---|
[5312] | 501 | if ( lhandle->context.global_data != NULL ) |
---|
| 502 | roar_mm_free(lhandle->context.global_data); |
---|
| 503 | |
---|
[5275] | 504 | if ( lhandle->para != NULL ) |
---|
| 505 | roar_dl_para_unref(lhandle->para); |
---|
| 506 | |
---|
[5317] | 507 | if ( lhandle->libname != NULL ) |
---|
| 508 | roar_mm_free(lhandle->libname); |
---|
| 509 | |
---|
[3304] | 510 | roar_mm_free(lhandle); |
---|
| 511 | |
---|
[5438] | 512 | ROAR_DBG("roar_dl_unref(lhandle=%p) = %i", lhandle, ret); |
---|
[3304] | 513 | return ret; |
---|
[3297] | 514 | } |
---|
| 515 | |
---|
| 516 | void * roar_dl_getsym(struct roar_dl_lhandle * lhandle, const char * sym, int type) { |
---|
| 517 | #if defined(ROAR_HAVE_LIBDL) |
---|
[3776] | 518 | void * ret = dlsym(_roardl2ldl(lhandle), sym); |
---|
| 519 | |
---|
[5270] | 520 | (void)type; |
---|
| 521 | |
---|
[5317] | 522 | ROAR_DBG("roar_dl_getsym(lhandle=%p, sym='%s', type=%i): errno=%s, dlerror()='%s'", lhandle, sym, type, ret, strerror(errno), dlerror()); |
---|
[3776] | 523 | ROAR_DBG("roar_dl_getsym(lhandle=%p, sym='%s', type=%i) = %p", lhandle, sym, type, ret); |
---|
| 524 | |
---|
| 525 | return ret; |
---|
[5481] | 526 | #elif defined(ROAR_TARGET_WIN32) |
---|
| 527 | FARPROC ret = GetProcAddress(_roardl2winhandle(lhandle), sym); |
---|
| 528 | return (void*)ret; |
---|
[3297] | 529 | #else |
---|
[5317] | 530 | ROAR_DBG("roar_dl_getsym(lhandle=%p, sym='%s', type=%i) = NULL // errno=NOSYS", lhandle, sym, type, ret); |
---|
| 531 | roar_err_set(ROAR_ERROR_NOSYS); |
---|
[3297] | 532 | return NULL; |
---|
| 533 | #endif |
---|
| 534 | } |
---|
| 535 | |
---|
[5275] | 536 | int roar_dl_ra_init(struct roar_dl_lhandle * lhandle, |
---|
| 537 | const char * prefix, |
---|
| 538 | struct roar_dl_librarypara * para) { |
---|
[5511] | 539 | struct roar_dl_lhandle * old_init; |
---|
[3297] | 540 | #define _SUFFIX "_roaraudio_library_init" |
---|
| 541 | char name[80] = _SUFFIX; |
---|
| 542 | struct roar_dl_libraryinst * (*func)(struct roar_dl_librarypara * para); |
---|
| 543 | struct roar_dl_libraryinst * lib; |
---|
[5317] | 544 | struct roar_dl_lhandle * getsymhandle = lhandle; |
---|
[5312] | 545 | void * global_data_state = NULL; |
---|
[3300] | 546 | int i; |
---|
[3297] | 547 | |
---|
[3305] | 548 | if ( (void*)lhandle < (void*)128 ) { |
---|
| 549 | if ( prefix == NULL ) |
---|
| 550 | return -1; |
---|
| 551 | } else { |
---|
[5503] | 552 | if ( lhandle->runtime_flags & RTF_RA_INITED ) |
---|
[5431] | 553 | return 0; |
---|
| 554 | |
---|
[5317] | 555 | if ( prefix == NULL ) |
---|
| 556 | prefix = lhandle->libname; |
---|
| 557 | |
---|
[5275] | 558 | if ( para == NULL ) |
---|
| 559 | para = lhandle->para; |
---|
[5317] | 560 | |
---|
| 561 | if ( lhandle->flags & ROAR_DL_FLAG_STATIC ) |
---|
| 562 | getsymhandle = ROAR_DL_HANDLE_DEFAULT; |
---|
[3305] | 563 | } |
---|
| 564 | |
---|
[3297] | 565 | |
---|
| 566 | if ( prefix != NULL ) { |
---|
[5008] | 567 | roar_mm_strscpy(name, "_"); |
---|
| 568 | roar_mm_strscat(name, prefix); |
---|
| 569 | roar_mm_strscat(name, _SUFFIX); |
---|
[3297] | 570 | } |
---|
| 571 | |
---|
[3307] | 572 | ROAR_DBG("roar_dl_ra_init(lhandle=%p, prefix='%s'): name='%s'", lhandle, prefix, name); |
---|
| 573 | |
---|
[5317] | 574 | if ( (func = roar_dl_getsym(getsymhandle, name, -1)) == NULL ) { |
---|
| 575 | ROAR_DBG("roar_dl_ra_init(lhandle=%p, prefix='%s') = -1", lhandle, prefix); |
---|
[3297] | 576 | return -1; |
---|
[5317] | 577 | } |
---|
[3297] | 578 | |
---|
[3307] | 579 | ROAR_DBG("roar_dl_ra_init(lhandle=%p, prefix='%s'): func=%p", lhandle, prefix, func); |
---|
| 580 | |
---|
[5512] | 581 | roar_err_set(ROAR_ERROR_BADLIB); // set a default error in case it returns NULL but not set an error code. |
---|
[3300] | 582 | lib = func(para); |
---|
[3297] | 583 | |
---|
| 584 | if ( lib == NULL ) |
---|
| 585 | return -1; |
---|
| 586 | |
---|
[3300] | 587 | if ( lib->version != ROAR_DL_LIBINST_VERSION ) |
---|
| 588 | return -1; |
---|
| 589 | |
---|
| 590 | if ( sizeof(struct roar_dl_libraryinst) > lib->len ) |
---|
| 591 | return -1; |
---|
| 592 | |
---|
[5353] | 593 | if ( lib->host_appname != NULL || lib->host_abiversion != NULL ) { |
---|
| 594 | // check for correct host. |
---|
| 595 | if ( para == NULL ) { |
---|
| 596 | roar_err_set(ROAR_ERROR_INVAL); |
---|
| 597 | return -1; |
---|
| 598 | } |
---|
| 599 | if ( roar_dl_para_check_version(para, lib->host_appname, lib->host_abiversion) == -1 ) |
---|
| 600 | return -1; |
---|
| 601 | } |
---|
| 602 | |
---|
[5347] | 603 | if ( (lib->libdep == NULL && lib->libdep_len) || (lib->libdep != NULL && !lib->libdep_len) ) { |
---|
| 604 | roar_err_set(ROAR_ERROR_BADLIB); |
---|
| 605 | return -1; |
---|
| 606 | } |
---|
| 607 | |
---|
| 608 | if ( lib->libdep != NULL && lib->libdep_len ) { |
---|
| 609 | // dynamic loader infos are currently not supported. |
---|
| 610 | roar_err_set(ROAR_ERROR_NOTSUP); |
---|
| 611 | return -1; |
---|
| 612 | } |
---|
| 613 | |
---|
[3361] | 614 | if ( !((void*)lhandle < (void*)128) ) { |
---|
| 615 | lhandle->lib = lib; |
---|
[5312] | 616 | |
---|
| 617 | if ( lib->global_data_len ) { |
---|
| 618 | lhandle->context.global_data = roar_mm_malloc(lib->global_data_len); |
---|
| 619 | if ( lhandle->context.global_data == NULL ) |
---|
| 620 | return -1; |
---|
| 621 | |
---|
| 622 | if ( lib->global_data_init == NULL ) { |
---|
| 623 | memset(lhandle->context.global_data, 0, lib->global_data_len); |
---|
| 624 | } else { |
---|
| 625 | memcpy(lhandle->context.global_data, lib->global_data_init, lib->global_data_len); |
---|
| 626 | } |
---|
| 627 | } |
---|
| 628 | } |
---|
| 629 | |
---|
| 630 | if ( lib->global_data_pointer != NULL ) { |
---|
| 631 | global_data_state = *(lib->global_data_pointer); |
---|
[5313] | 632 | if ( (void*)lhandle < (void*)128 ) { |
---|
[5312] | 633 | *(lib->global_data_pointer) = lib->global_data_init; |
---|
| 634 | } else { |
---|
| 635 | *(lib->global_data_pointer) = lhandle->context.global_data; |
---|
| 636 | } |
---|
[3361] | 637 | } |
---|
| 638 | |
---|
[5511] | 639 | old_init = __currently_inited; |
---|
| 640 | __currently_inited = lhandle; |
---|
[3300] | 641 | for (i = 0; i < ROAR_DL_FN_MAX; i++) { |
---|
| 642 | if ( lib->func[i] != NULL ) |
---|
| 643 | lib->func[i](para, lib); |
---|
| 644 | } |
---|
[5511] | 645 | __currently_inited = old_init; |
---|
| 646 | |
---|
[3300] | 647 | |
---|
[5312] | 648 | if ( lib->global_data_pointer != NULL ) { |
---|
[5313] | 649 | if ( !((void*)lhandle < (void*)128) ) { |
---|
| 650 | *(lib->global_data_pointer) = global_data_state; |
---|
| 651 | } |
---|
[5312] | 652 | } |
---|
| 653 | |
---|
[5431] | 654 | if ( !((void*)lhandle < (void*)128) ) |
---|
[5503] | 655 | lhandle->runtime_flags |= RTF_RA_INITED; |
---|
[5431] | 656 | |
---|
[3302] | 657 | return 0; |
---|
[3297] | 658 | } |
---|
| 659 | |
---|
[5275] | 660 | const char * roar_dl_errstr(struct roar_dl_lhandle * lhandle) { |
---|
[3364] | 661 | #if defined(ROAR_HAVE_LIBDL) |
---|
[5270] | 662 | (void)lhandle; |
---|
[3364] | 663 | return dlerror(); |
---|
[5481] | 664 | #elif defined(ROAR_TARGET_WIN32) |
---|
| 665 | roar_err_from_errno(); |
---|
| 666 | return roar_error2str(roar_error); |
---|
[3364] | 667 | #else |
---|
| 668 | return NULL; |
---|
| 669 | #endif |
---|
| 670 | } |
---|
| 671 | |
---|
[5275] | 672 | struct roar_dl_librarypara * roar_dl_getpara(struct roar_dl_lhandle * lhandle) { |
---|
| 673 | if ( (void*)lhandle < (void*)128 ) { |
---|
| 674 | roar_err_set(ROAR_ERROR_NOTSUP); |
---|
| 675 | return NULL; |
---|
| 676 | } |
---|
| 677 | |
---|
| 678 | if ( lhandle->para == NULL ) { |
---|
| 679 | roar_err_set(ROAR_ERROR_NOENT); |
---|
| 680 | return NULL; |
---|
| 681 | } |
---|
| 682 | |
---|
| 683 | if ( roar_dl_para_ref(lhandle->para) == -1 ) |
---|
| 684 | return NULL; |
---|
| 685 | |
---|
| 686 | return lhandle->para; |
---|
| 687 | } |
---|
| 688 | |
---|
| 689 | const struct roar_dl_libraryname * roar_dl_getlibname(struct roar_dl_lhandle * lhandle) { |
---|
| 690 | if ( (void*)lhandle < (void*)128 ) { |
---|
| 691 | roar_err_set(ROAR_ERROR_NOTSUP); |
---|
| 692 | return NULL; |
---|
| 693 | } |
---|
| 694 | |
---|
| 695 | if ( lhandle->lib == NULL ) { |
---|
| 696 | roar_err_set(ROAR_ERROR_BADLIB); |
---|
| 697 | return NULL; |
---|
| 698 | } |
---|
| 699 | |
---|
| 700 | if ( lhandle->lib->libname == NULL ) { |
---|
| 701 | roar_err_set(ROAR_ERROR_NOENT); |
---|
| 702 | return NULL; |
---|
| 703 | } |
---|
| 704 | |
---|
| 705 | if ( lhandle->lib->libname->version != ROAR_DL_LIBNAME_VERSION ) { |
---|
| 706 | roar_err_set(ROAR_ERROR_BADVERSION); |
---|
| 707 | return NULL; |
---|
| 708 | } |
---|
| 709 | |
---|
| 710 | if ( lhandle->lib->libname->len != sizeof(struct roar_dl_libraryname) ) { |
---|
| 711 | roar_err_set(ROAR_ERROR_HOLE); |
---|
| 712 | return NULL; |
---|
| 713 | } |
---|
| 714 | |
---|
| 715 | return lhandle->lib->libname; |
---|
| 716 | } |
---|
| 717 | |
---|
[5312] | 718 | int roar_dl_context_restore(struct roar_dl_lhandle * lhandle) { |
---|
| 719 | struct roar_error_state error_state; |
---|
| 720 | |
---|
[5317] | 721 | ROAR_DBG("roar_dl_context_restore(lhandle=%p) = ?", lhandle); |
---|
| 722 | |
---|
[5312] | 723 | if ( (void*)lhandle < (void*)128 ) { |
---|
[5317] | 724 | ROAR_DBG("roar_dl_context_restore(lhandle=%p) = -1 // errno=NOTSUP", lhandle); |
---|
[5312] | 725 | roar_err_set(ROAR_ERROR_NOTSUP); |
---|
| 726 | return -1; |
---|
| 727 | } |
---|
| 728 | |
---|
| 729 | roar_err_store(&error_state); |
---|
| 730 | roar_err_restore(&(lhandle->context.error_state)); |
---|
| 731 | lhandle->context.error_state = error_state; |
---|
| 732 | |
---|
| 733 | if ( lhandle->lib->global_data_pointer != NULL ) { |
---|
[5317] | 734 | ROAR_DBG("roar_dl_context_restore(lhandle=%p): gptr(%p): %p -> %p", lhandle, |
---|
| 735 | lhandle->lib->global_data_pointer, *(lhandle->lib->global_data_pointer), lhandle->context.global_data); |
---|
[5312] | 736 | lhandle->context.global_data_state = *(lhandle->lib->global_data_pointer); |
---|
| 737 | *(lhandle->lib->global_data_pointer) = lhandle->context.global_data; |
---|
| 738 | } |
---|
| 739 | |
---|
[5317] | 740 | if ( lhandle->para->notifycore != NULL ) |
---|
| 741 | lhandle->context.notifycore = roar_notify_core_swap_global(lhandle->para->notifycore); |
---|
| 742 | |
---|
| 743 | ROAR_DBG("roar_dl_context_restore(lhandle=%p) = 0", lhandle); |
---|
[5312] | 744 | return 0; |
---|
| 745 | } |
---|
| 746 | |
---|
| 747 | int roar_dl_context_store(struct roar_dl_lhandle * lhandle) { |
---|
| 748 | struct roar_error_state error_state; |
---|
| 749 | |
---|
[5317] | 750 | ROAR_DBG("roar_dl_context_store(lhandle=%p) = ?", lhandle); |
---|
| 751 | |
---|
[5312] | 752 | if ( (void*)lhandle < (void*)128 ) { |
---|
[5317] | 753 | ROAR_DBG("roar_dl_context_store(lhandle=%p) = -1 // errno=NOTSUP", lhandle); |
---|
[5312] | 754 | roar_err_set(ROAR_ERROR_NOTSUP); |
---|
| 755 | return -1; |
---|
| 756 | } |
---|
| 757 | |
---|
[5317] | 758 | if ( lhandle->para->notifycore != NULL ) { |
---|
| 759 | roar_notify_core_unref(roar_notify_core_swap_global(lhandle->context.notifycore)); |
---|
| 760 | roar_notify_core_unref(lhandle->context.notifycore); |
---|
| 761 | lhandle->context.notifycore = NULL; |
---|
| 762 | } |
---|
| 763 | |
---|
[5312] | 764 | if ( lhandle->lib->global_data_pointer != NULL ) { |
---|
[5317] | 765 | ROAR_DBG("roar_dl_context_store(lhandle=%p): gptr(%p): %p -> %p", lhandle, |
---|
| 766 | lhandle->lib->global_data_pointer, *(lhandle->lib->global_data_pointer), lhandle->context.global_data_state); |
---|
[5312] | 767 | *(lhandle->lib->global_data_pointer) = lhandle->context.global_data_state; |
---|
| 768 | } |
---|
| 769 | |
---|
| 770 | roar_err_store(&error_state); |
---|
| 771 | roar_err_restore(&(lhandle->context.error_state)); |
---|
| 772 | lhandle->context.error_state = error_state; |
---|
| 773 | |
---|
[5317] | 774 | ROAR_DBG("roar_dl_context_store(lhandle=%p) = 0", lhandle); |
---|
[5312] | 775 | return 0; |
---|
| 776 | } |
---|
| 777 | |
---|
[5317] | 778 | int roar_dl_appsched_trigger(struct roar_dl_lhandle * lhandle, enum roar_dl_appsched_trigger trigger) { |
---|
[5335] | 779 | int (*func) (struct roar_dl_librarypara * para) = NULL; |
---|
[5317] | 780 | int ret; |
---|
| 781 | |
---|
| 782 | if ( (void*)lhandle < (void*)128 ) { |
---|
| 783 | roar_err_set(ROAR_ERROR_NOTSUP); |
---|
| 784 | return -1; |
---|
| 785 | } |
---|
| 786 | |
---|
[5446] | 787 | if ( lhandle->lib == NULL ) { |
---|
| 788 | roar_err_set(ROAR_ERROR_TYPEMM); |
---|
| 789 | return -1; |
---|
| 790 | } |
---|
| 791 | |
---|
[5317] | 792 | if ( lhandle->lib->appsched == NULL ) { |
---|
| 793 | roar_err_set(ROAR_ERROR_NOENT); |
---|
| 794 | return -1; |
---|
| 795 | } |
---|
| 796 | |
---|
| 797 | switch (trigger) { |
---|
| 798 | #define _trig(lname,uname) \ |
---|
| 799 | case ROAR_DL_APPSCHED_ ## uname : \ |
---|
[5335] | 800 | func = lhandle->lib->appsched->lname; \ |
---|
[5317] | 801 | break; |
---|
| 802 | _trig(init, INIT); |
---|
| 803 | _trig(free, FREE); |
---|
| 804 | _trig(update, UPDATE); |
---|
[5335] | 805 | _trig(tick, TICK); |
---|
| 806 | _trig(wait, WAIT); |
---|
| 807 | // use ifndef here so warnings of unhandled enum values will be shown in DEBUG mode. |
---|
| 808 | #ifndef DEBUG |
---|
| 809 | default: |
---|
| 810 | roar_err_set(ROAR_ERROR_BADRQC); |
---|
| 811 | return -1; |
---|
| 812 | break; |
---|
| 813 | #endif |
---|
[5317] | 814 | } |
---|
| 815 | |
---|
[5335] | 816 | if ( func == NULL ) { |
---|
[5503] | 817 | if ( trigger == ROAR_DL_APPSCHED_INIT ) { |
---|
| 818 | lhandle->runtime_flags |= RTF_APPSCHED_INITED|RTF_APPSCHED_FREED; |
---|
| 819 | lhandle->runtime_flags -= RTF_APPSCHED_FREED; |
---|
| 820 | } else if ( trigger == ROAR_DL_APPSCHED_FREE ) { |
---|
| 821 | lhandle->runtime_flags |= RTF_APPSCHED_INITED|RTF_APPSCHED_FREED; |
---|
| 822 | lhandle->runtime_flags -= RTF_APPSCHED_INITED; |
---|
| 823 | } |
---|
[5335] | 824 | roar_err_set(ROAR_ERROR_NOENT); |
---|
| 825 | return -1; |
---|
| 826 | } |
---|
| 827 | |
---|
[5503] | 828 | if ( trigger == ROAR_DL_APPSCHED_INIT ) { |
---|
| 829 | if ( lhandle->runtime_flags & RTF_APPSCHED_INITED ) { |
---|
| 830 | roar_err_set(ROAR_ERROR_BUSY); |
---|
| 831 | return -1; |
---|
| 832 | } |
---|
| 833 | } else { |
---|
| 834 | if ( !(lhandle->runtime_flags & RTF_APPSCHED_INITED) ) { |
---|
| 835 | roar_err_set(ROAR_ERROR_BUSY); |
---|
| 836 | return -1; |
---|
| 837 | } |
---|
| 838 | } |
---|
| 839 | |
---|
[5335] | 840 | roar_dl_context_restore(lhandle); |
---|
| 841 | ret = func(lhandle->para); |
---|
| 842 | roar_dl_context_store(lhandle); |
---|
[5503] | 843 | |
---|
| 844 | if ( trigger == ROAR_DL_APPSCHED_INIT ) { |
---|
| 845 | lhandle->runtime_flags |= RTF_APPSCHED_INITED|RTF_APPSCHED_FREED; |
---|
| 846 | lhandle->runtime_flags -= RTF_APPSCHED_FREED; |
---|
| 847 | } else if ( trigger == ROAR_DL_APPSCHED_FREE ) { |
---|
| 848 | lhandle->runtime_flags |= RTF_APPSCHED_INITED|RTF_APPSCHED_FREED; |
---|
| 849 | lhandle->runtime_flags -= RTF_APPSCHED_INITED; |
---|
| 850 | } |
---|
| 851 | |
---|
[5335] | 852 | return ret; |
---|
[5317] | 853 | } |
---|
| 854 | |
---|
[5511] | 855 | |
---|
| 856 | #define __MAX_FNREGS 24 |
---|
| 857 | static struct __fnregs { |
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| 858 | struct roar_dl_lhandle * lhandle; |
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| 859 | int subtype; |
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| 860 | const void * object; |
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| 861 | size_t objectlen; |
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| 862 | int version; |
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| 863 | int options; |
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| 864 | } __fnrefs[ROAR_DL_FN_MAX][__MAX_FNREGS]; |
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| 865 | |
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| 866 | static int __fnreg_check_trigger(const struct __fnregs * handle) { |
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| 867 | if ( handle->subtype != ROAR_DL_FNREG_SUBTYPE ) |
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| 868 | return -1; |
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| 869 | if ( handle->version != ROAR_DL_FNREG_VERSION ) |
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| 870 | return -1; |
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| 871 | if ( handle->objectlen != ROAR_DL_FNREG_SIZE ) |
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| 872 | return -1; |
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| 873 | |
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| 874 | return 0; |
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| 875 | } |
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| 876 | |
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| 877 | static void __fnreg_trigger_if_match(const struct roar_dl_fnreg * callback, |
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| 878 | const struct __fnregs * reg, |
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| 879 | int fn, |
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| 880 | enum roar_dl_fnreg_action action) { |
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| 881 | if ( callback->fn != -1 && callback->fn != fn ) |
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| 882 | return; |
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| 883 | if ( callback->subtype != -1 && callback->subtype != reg->subtype ) |
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| 884 | return; |
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| 885 | if ( callback->version != -1 && callback->version != reg->version ) |
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| 886 | return; |
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| 887 | |
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| 888 | if ( callback->callback == NULL ) |
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| 889 | return; |
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| 890 | |
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| 891 | callback->callback(action, fn, reg->subtype, reg->object, reg->objectlen, reg->version, reg->options, callback->userdata, reg->lhandle); |
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| 892 | } |
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| 893 | |
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| 894 | static void __fnreg_trigger_by_reg(const struct __fnregs * reg, enum roar_dl_fnreg_action action, int fn) { |
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| 895 | size_t j; |
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| 896 | |
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| 897 | for (j = 0; j < __MAX_FNREGS; j++) { |
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| 898 | if ( __fnrefs[ROAR_DL_FN_REGFN][j].lhandle != NULL ) { |
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| 899 | if ( __fnreg_check_trigger(&(__fnrefs[ROAR_DL_FN_REGFN][j])) == -1 ) |
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| 900 | continue; |
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| 901 | __fnreg_trigger_if_match(__fnrefs[ROAR_DL_FN_REGFN][j].object, reg, fn, action); |
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| 902 | } |
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| 903 | } |
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| 904 | } |
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| 905 | |
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| 906 | static void __fnreg_trigger_by_handler(const struct __fnregs * handle, enum roar_dl_fnreg_action action) { |
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| 907 | size_t i, j; |
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| 908 | |
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| 909 | if ( __fnreg_check_trigger(handle) == -1 ) |
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| 910 | return; |
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| 911 | |
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| 912 | for (i = 0; i < ROAR_DL_FN_MAX; i++) { |
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| 913 | for (j = 0; j < __MAX_FNREGS; j++) { |
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| 914 | if ( __fnrefs[i][j].lhandle != NULL ) { |
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| 915 | __fnreg_trigger_if_match(handle->object, &(__fnrefs[i][j]), i, action); |
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| 916 | } |
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| 917 | } |
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| 918 | } |
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| 919 | } |
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| 920 | |
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| 921 | int roar_dl_register_fn(struct roar_dl_lhandle * lhandle, int fn, int subtype, const void * object, size_t objectlen, int version, int options) { |
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| 922 | struct __fnregs * c = NULL; |
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| 923 | size_t i; |
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| 924 | |
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| 925 | if ( lhandle == NULL ) |
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| 926 | lhandle = __currently_inited; |
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| 927 | |
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| 928 | if ( lhandle == NULL ) { |
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| 929 | roar_err_set(ROAR_ERROR_FAULT); |
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| 930 | return -1; |
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| 931 | } |
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| 932 | |
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| 933 | if ( fn < 0 || fn >= ROAR_DL_FN_MAX ) { |
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| 934 | roar_err_set(ROAR_ERROR_RANGE); |
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| 935 | return -1; |
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| 936 | } |
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| 937 | |
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| 938 | if ( object == NULL || objectlen == 0 ) { |
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| 939 | roar_err_set(ROAR_ERROR_INVAL); |
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| 940 | return -1; |
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| 941 | } |
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| 942 | |
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| 943 | for (i = 0; i < __MAX_FNREGS; i++) { |
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| 944 | if ( __fnrefs[fn][i].lhandle != NULL ) |
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| 945 | continue; |
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| 946 | c = &(__fnrefs[fn][i]); |
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| 947 | break; |
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| 948 | } |
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| 949 | |
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| 950 | if ( c == NULL ) { |
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| 951 | roar_err_set(ROAR_ERROR_NOSPC); |
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| 952 | return -1; |
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| 953 | } |
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| 954 | |
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| 955 | c->lhandle = lhandle; |
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| 956 | c->subtype = subtype; |
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| 957 | c->object = object; |
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| 958 | c->objectlen = objectlen; |
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| 959 | c->version = version; |
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| 960 | |
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| 961 | if ( fn == ROAR_DL_FN_REGFN ) { |
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| 962 | __fnreg_trigger_by_handler(c, ROAR_DL_FNREG); |
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| 963 | } else { |
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| 964 | __fnreg_trigger_by_reg(c, ROAR_DL_FNREG, fn); |
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| 965 | } |
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| 966 | |
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| 967 | return 0; |
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| 968 | } |
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| 969 | |
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| 970 | int roar_dl_unregister_fn(struct roar_dl_lhandle * lhandle) { |
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| 971 | size_t i, j; |
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| 972 | |
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| 973 | //} __fnrefs[ROAR_DL_FN_MAX][__MAX_FNREGS]; |
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| 974 | |
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| 975 | if ( lhandle == NULL ) { |
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| 976 | roar_err_set(ROAR_ERROR_FAULT); |
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| 977 | return -1; |
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| 978 | } |
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| 979 | |
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| 980 | for (i = 0; i < ROAR_DL_FN_MAX; i++) { |
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| 981 | for (j = 0; j < __MAX_FNREGS; j++) { |
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| 982 | if ( __fnrefs[i][j].lhandle == lhandle ) { |
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| 983 | if ( i == ROAR_DL_FN_REGFN ) { |
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| 984 | __fnreg_trigger_by_handler(&(__fnrefs[i][j]), ROAR_DL_FNUNREG); |
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| 985 | } else { |
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| 986 | __fnreg_trigger_by_reg(&(__fnrefs[i][j]), ROAR_DL_FNUNREG, i); |
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| 987 | } |
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| 988 | memset(&(__fnrefs[i][j]), 0, sizeof(__fnrefs[i][j])); |
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| 989 | __fnrefs[i][j].lhandle = NULL; |
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| 990 | } |
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| 991 | } |
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| 992 | } |
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| 993 | |
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| 994 | return 0; |
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| 995 | } |
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| 996 | |
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[3297] | 997 | //ll |
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