| 1 | /*************************************************************************** |
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| 2 | * pcJobThreadThread.cc |
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| 3 | * |
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| 4 | * Wed Oct 08 2009 |
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| 5 | * Copyright 2009 Dmytro Milinevskyy |
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| 6 | * milinevskyy@gmail.com |
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| 7 | ****************************************************************************/ |
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| 8 | |
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| 9 | /* |
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| 10 | * This program is free software; you can redistribute it and/or modify |
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| 11 | * it under the terms of the GNU Lesser General Public License version 2.1 as published by |
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| 12 | * the Free Software Foundation; |
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| 13 | * |
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| 14 | * This program 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 Library 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 Lesser General Public License |
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| 20 | * along with this program; if not, write to the Free Software |
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| 21 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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| 22 | */ |
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| 23 | |
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| 24 | /** |
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| 25 | * vim indentation settings |
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| 26 | * set tabstop=4 |
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| 27 | * set shiftwidth=4 |
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| 28 | */ |
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| 29 | |
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| 30 | #include <libdodo/directives.h> |
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| 31 | |
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| 32 | #ifdef DL_EXT |
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| 33 | #include <dlfcn.h> |
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| 34 | #endif |
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| 35 | #ifdef PTHREAD_EXT |
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| 36 | #include <pthread.h> |
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| 37 | #endif |
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| 38 | #include <signal.h> |
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| 39 | #include <errno.h> |
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| 40 | #include <string.h> |
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| 41 | |
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| 42 | namespace dodo { |
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| 43 | namespace exception { |
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| 44 | class basic; |
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| 45 | }; |
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| 46 | |
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| 47 | namespace pc { |
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| 48 | namespace execution { |
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| 49 | /** |
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| 50 | * @struct __thread__ |
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| 51 | * @brief defines process information |
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| 52 | */ |
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| 53 | struct __thread__ { |
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| 54 | /** |
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| 55 | * contructor |
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| 56 | */ |
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| 57 | __thread__() : |
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| 58 | #ifdef PTHREAD_EXT |
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| 59 | thread(0), |
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| 60 | #endif |
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| 61 | executed(false), |
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| 62 | joined(false), |
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| 63 | status(0), |
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| 64 | ex(NULL) |
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| 65 | #ifdef DL_EXT |
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| 66 | , |
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| 67 | handle(NULL) |
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| 68 | #endif |
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| 69 | { |
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| 70 | #ifdef DL_EXT |
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| 71 | memset(cookie, 0x0, 32); |
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| 72 | #endif |
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| 73 | } |
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| 74 | |
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| 75 | #ifdef PTHREAD_EXT |
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| 76 | pthread_t thread; ///< thread descriptor |
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| 77 | pthread_attr_t attr; ///< thread attribute |
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| 78 | |
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| 79 | /** |
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| 80 | * @return thread exit status |
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| 81 | * @param data defines user data |
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| 82 | */ |
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| 83 | static void *routine(void *data); |
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| 84 | #endif |
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| 85 | |
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| 86 | void *func; ///< function to execute |
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| 87 | void *data; ///< thread data |
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| 88 | |
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| 89 | bool executed; ///< true if thread is running |
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| 90 | bool joined; ///< true if the thread was joined |
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| 91 | int status; ///< thread exit status |
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| 92 | bool detached; ///< true if thread is detached |
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| 93 | short action; ///< action on object destruction[@see onDestructionEnum] |
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| 94 | |
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| 95 | exception::basic *ex; ///< uncought exception dodo_rethrown by thread routine |
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| 96 | |
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| 97 | #ifdef DL_EXT |
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| 98 | void *handle; ///< handle to library |
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| 99 | char cookie[32]; ///< cookie that would be passed to deinitModule |
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| 100 | #endif |
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| 101 | }; |
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| 102 | }; |
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| 103 | }; |
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| 104 | }; |
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| 105 | |
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| 106 | #include <libdodo/pcExecutionThread.h> |
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| 107 | #include <libdodo/pcExecutionJob.h> |
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| 108 | #include <libdodo/toolsOs.h> |
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| 109 | #include <libdodo/pcExecutionThreadEx.h> |
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| 110 | #include <libdodo/types.h> |
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| 111 | #include <libdodo/exceptionBasic.h> |
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| 112 | |
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| 113 | using namespace dodo::pc::execution; |
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| 114 | |
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| 115 | #ifdef PTHREAD_EXT |
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| 116 | void * |
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| 117 | __thread__::routine(void *data) |
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| 118 | { |
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| 119 | __thread__ *ti = (__thread__ *)data; |
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| 120 | |
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| 121 | dodo_try { |
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| 122 | delete ti->ex; |
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| 123 | ti->ex = NULL; |
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| 124 | |
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| 125 | ti->status = ((execution::routine)ti->func)(ti->data); |
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| 126 | } dodo_catch (exception::basic *e UNUSED) { |
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| 127 | /* FIXME */ |
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| 128 | ti->ex = new exception::basic(*e); |
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| 129 | ti->status = 0; |
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| 130 | } |
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| 131 | |
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| 132 | if (ti->detached) { |
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| 133 | #ifdef DL_EXT |
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| 134 | if (ti->handle != NULL) { |
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| 135 | thread::deinitModule deinit = (thread::deinitModule)dlsym(ti->handle, "deinitPcExecutionThreadModule"); |
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| 136 | if (deinit != NULL) |
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| 137 | deinit(ti->cookie); |
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| 138 | |
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| 139 | #ifndef DL_FAST |
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| 140 | dlclose(ti->handle); |
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| 141 | #endif |
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| 142 | } |
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| 143 | #endif |
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| 144 | |
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| 145 | delete ti->ex; |
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| 146 | delete ti; |
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| 147 | } |
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| 148 | |
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| 149 | return NULL; |
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| 150 | } |
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| 151 | #endif |
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| 152 | |
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| 153 | //------------------------------------------------------------------- |
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| 154 | |
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| 155 | thread::thread(const thread &t) : job(t), |
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| 156 | handle(new __thread__) |
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| 157 | { |
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| 158 | *handle = *t.handle; |
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| 159 | } |
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| 160 | |
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| 161 | //------------------------------------------------------------------- |
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| 162 | |
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| 163 | thread::thread(routine func, |
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| 164 | void *data, |
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| 165 | short action, |
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| 166 | bool detached, |
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| 167 | unsigned long stackSize) : job(TYPE_THREAD), |
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| 168 | handle(new __thread__) |
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| 169 | { |
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| 170 | handle->detached = detached; |
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| 171 | handle->data = data; |
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| 172 | handle->func = (void *)func; |
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| 173 | handle->action = action; |
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| 174 | |
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| 175 | #ifdef PTHREAD_EXT |
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| 176 | pthread_attr_init(&handle->attr); |
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| 177 | |
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| 178 | if (detached) |
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| 179 | pthread_attr_setdetachstate(&handle->attr, PTHREAD_CREATE_DETACHED); |
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| 180 | else |
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| 181 | pthread_attr_setdetachstate(&handle->attr, PTHREAD_CREATE_JOINABLE); |
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| 182 | |
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| 183 | errno = pthread_attr_setstacksize(&handle->attr, stackSize); |
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| 184 | if (errno != 0) { |
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| 185 | pthread_attr_destroy(&handle->attr); |
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| 186 | delete handle; |
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| 187 | |
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| 188 | dodo_throw exception::basic(exception::MODULE_PCEXECUTIONTHREAD, THREADEX_CONSTRUCTOR, exception::ERRNO_ERRNO, errno, strerror(errno), __LINE__, __FILE__); |
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| 189 | } |
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| 190 | #endif |
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| 191 | } |
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| 192 | |
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| 193 | #ifdef DL_EXT |
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| 194 | thread::thread(const dodo::string &module, |
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| 195 | void *data, |
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| 196 | void *toInit) : job(TYPE_THREAD), |
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| 197 | handle(new __thread__) |
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| 198 | { |
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| 199 | handle->data = data; |
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| 200 | |
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| 201 | #ifdef DL_FAST |
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| 202 | handle->handle = dlopen(module.data(), RTLD_LAZY | RTLD_NODELETE); |
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| 203 | #else |
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| 204 | handle->handle = dlopen(module.data(), RTLD_LAZY); |
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| 205 | #endif |
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| 206 | if (handle->handle == NULL) { |
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| 207 | delete handle; |
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| 208 | |
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| 209 | dodo_throw exception::basic(exception::MODULE_PCEXECUTIONTHREAD, THREADEX_CONSTRUCTOR, exception::ERRNO_DYNLOAD, 0, dlerror(), __LINE__, __FILE__); |
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| 210 | } |
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| 211 | |
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| 212 | initModule init = (initModule)dlsym(handle->handle, "initPcExecutionThreadModule"); |
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| 213 | if (init == NULL) { |
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| 214 | dlclose(handle->handle); |
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| 215 | delete handle; |
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| 216 | |
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| 217 | dodo_throw exception::basic(exception::MODULE_PCEXECUTIONTHREAD, THREADEX_CONSTRUCTOR, exception::ERRNO_DYNLOAD, 0, dlerror(), __LINE__, __FILE__); |
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| 218 | } |
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| 219 | |
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| 220 | __module__ m = init(toInit); |
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| 221 | |
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| 222 | void *f = dlsym(handle->handle, m.hook); |
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| 223 | if (f == NULL) { |
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| 224 | dlclose(handle->handle); |
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| 225 | delete handle; |
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| 226 | |
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| 227 | dodo_throw exception::basic(exception::MODULE_PCEXECUTIONTHREAD, THREADEX_CONSTRUCTOR, exception::ERRNO_DYNLOAD, 0, dlerror(), __LINE__, __FILE__); |
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| 228 | } |
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| 229 | |
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| 230 | #ifdef PTHREAD_EXT |
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| 231 | pthread_attr_init(&handle->attr); |
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| 232 | |
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| 233 | if (m.detached) |
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| 234 | pthread_attr_setdetachstate(&handle->attr, PTHREAD_CREATE_DETACHED); |
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| 235 | else |
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| 236 | pthread_attr_setdetachstate(&handle->attr, PTHREAD_CREATE_JOINABLE); |
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| 237 | |
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| 238 | errno = pthread_attr_setstacksize(&handle->attr, m.stackSize); |
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| 239 | if (errno != 0) { |
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| 240 | dlclose(handle->handle); |
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| 241 | pthread_attr_destroy(&handle->attr); |
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| 242 | delete handle; |
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| 243 | |
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| 244 | dodo_throw exception::basic(exception::MODULE_PCEXECUTIONTHREAD, THREADEX_CONSTRUCTOR, exception::ERRNO_ERRNO, errno, strerror(errno), __LINE__, __FILE__); |
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| 245 | } |
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| 246 | #endif |
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| 247 | |
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| 248 | handle->detached = m.detached; |
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| 249 | handle->action = m.action; |
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| 250 | handle->func = f; |
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| 251 | memcpy(handle->cookie, m.cookie, 32); |
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| 252 | } |
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| 253 | #endif |
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| 254 | |
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| 255 | //------------------------------------------------------------------- |
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| 256 | |
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| 257 | thread::~thread() |
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| 258 | { |
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| 259 | if (!cloned) { |
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| 260 | #ifdef PTHREAD_EXT |
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| 261 | pthread_attr_destroy(&handle->attr); |
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| 262 | #endif |
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| 263 | |
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| 264 | if (isRunning()) { |
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| 265 | if (handle->detached) |
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| 266 | return; |
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| 267 | |
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| 268 | switch (handle->action) { |
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| 269 | case ON_DESTRUCTION_KEEP_ALIVE: |
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| 270 | handle->detached = true; |
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| 271 | #ifdef PTHREAD_EXT |
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| 272 | pthread_detach(handle->thread); |
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| 273 | #endif |
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| 274 | return; |
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| 275 | |
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| 276 | case ON_DESTRUCTION_STOP: |
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| 277 | #ifdef PTHREAD_EXT |
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| 278 | pthread_cancel(handle->thread); |
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| 279 | #endif |
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| 280 | break; |
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| 281 | } |
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| 282 | } |
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| 283 | |
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| 284 | #ifdef PTHREAD_EXT |
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| 285 | if (!handle->joined) |
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| 286 | pthread_join(handle->thread, NULL); |
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| 287 | #endif |
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| 288 | |
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| 289 | #ifdef DL_EXT |
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| 290 | if (handle->handle != NULL) { |
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| 291 | deinitModule deinit = (deinitModule)dlsym(handle->handle, "deinitPcExecutionThreadModule"); |
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| 292 | if (deinit != NULL) |
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| 293 | deinit(handle->cookie); |
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| 294 | |
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| 295 | #ifndef DL_FAST |
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| 296 | dlclose(handle->handle); |
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| 297 | #endif |
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| 298 | } |
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| 299 | #endif |
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| 300 | |
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| 301 | delete handle->ex; |
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| 302 | delete handle; |
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| 303 | } |
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| 304 | } |
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| 305 | |
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| 306 | //------------------------------------------------------------------- |
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| 307 | |
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| 308 | void |
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| 309 | thread::run() |
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| 310 | { |
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| 311 | if (isRunning()) |
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| 312 | dodo_throw exception::basic(exception::MODULE_PCEXECUTIONTHREAD, THREADEX_RUN, exception::ERRNO_LIBDODO, THREADEX_ISALREADYRUNNING, PCEXECUTIONTHREADEX_ISALREADYRUNNING_STR, __LINE__, __FILE__); |
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| 313 | |
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| 314 | #ifdef PTHREAD_EXT |
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| 315 | errno = pthread_create(&handle->thread, &handle->attr, __thread__::routine, handle); |
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| 316 | if (errno != 0) |
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| 317 | dodo_throw exception::basic(exception::MODULE_PCEXECUTIONTHREAD, THREADEX_RUN, exception::ERRNO_ERRNO, errno, strerror(errno), __LINE__, __FILE__); |
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| 318 | #endif |
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| 319 | |
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| 320 | handle->executed = true; |
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| 321 | } |
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| 322 | |
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| 323 | //------------------------------------------------------------------- |
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| 324 | |
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| 325 | int |
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| 326 | thread::wait() |
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| 327 | { |
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| 328 | if (handle->detached) { |
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| 329 | if (isRunning()) |
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| 330 | dodo_throw exception::basic(exception::MODULE_PCEXECUTIONTHREAD, THREADEX_WAIT, exception::ERRNO_LIBDODO, THREADEX_ISDETACHED, PCEXECUTIONTHREADEX_ISDETACHED_STR, __LINE__, __FILE__); |
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| 331 | else |
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| 332 | return handle->status; |
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| 333 | } |
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| 334 | |
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| 335 | if (handle->joined) |
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| 336 | return handle->status; |
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| 337 | |
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| 338 | if (!handle->executed) |
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| 339 | dodo_throw exception::basic(exception::MODULE_PCEXECUTIONTHREAD, THREADEX_WAIT, exception::ERRNO_LIBDODO, THREADEX_ISNOTLAUNCHED, PCEXECUTIONTHREADEX_ISNOTLAUNCHED_STR, __LINE__, __FILE__); |
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| 340 | |
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| 341 | int status = 0; |
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| 342 | |
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| 343 | #ifdef PTHREAD_EXT |
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| 344 | errno = pthread_join(handle->thread, NULL); |
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| 345 | if (errno != 0) |
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| 346 | dodo_throw exception::basic(exception::MODULE_PCEXECUTIONTHREAD, THREADEX_WAIT, exception::ERRNO_ERRNO, errno, strerror(errno), __LINE__, __FILE__); |
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| 347 | |
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| 348 | status = handle->status; |
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| 349 | #endif |
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| 350 | |
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| 351 | handle->joined = true; |
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| 352 | handle->executed = false; |
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| 353 | |
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| 354 | return status; |
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| 355 | } |
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| 356 | |
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| 357 | //------------------------------------------------------------------- |
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| 358 | |
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| 359 | void |
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| 360 | thread::stop() |
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| 361 | { |
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| 362 | #ifdef PTHREAD_EXT |
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| 363 | errno = pthread_cancel(handle->thread); |
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| 364 | if (errno != 0) |
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| 365 | dodo_throw exception::basic(exception::MODULE_PCEXECUTIONTHREAD, THREADEX_STOP, exception::ERRNO_ERRNO, errno, strerror(errno), __LINE__, __FILE__); |
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| 366 | #endif |
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| 367 | |
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| 368 | handle->executed = false; |
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| 369 | } |
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| 370 | |
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| 371 | //------------------------------------------------------------------- |
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| 372 | |
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| 373 | bool |
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| 374 | thread::isRunning() const |
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| 375 | { |
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| 376 | if (!handle->executed) |
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| 377 | return false; |
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| 378 | |
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| 379 | #ifdef PTHREAD_EXT |
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| 380 | errno = pthread_kill(handle->thread, 0); |
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| 381 | if (errno != 0) { |
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| 382 | if (errno == ESRCH || errno == EAGAIN) |
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| 383 | return false; |
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| 384 | |
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| 385 | dodo_throw exception::basic(exception::MODULE_PCEXECUTIONTHREAD, THREADEX_ISRUNNING, exception::ERRNO_ERRNO, errno, strerror(errno), __LINE__, __FILE__); |
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| 386 | } |
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| 387 | #endif |
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| 388 | |
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| 389 | return true; |
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| 390 | } |
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| 391 | |
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| 392 | //------------------------------------------------------------------- |
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| 393 | |
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| 394 | #ifdef DL_EXT |
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| 395 | thread::__module__ |
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| 396 | thread::module(const dodo::string &module, |
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| 397 | void *toInit) |
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| 398 | { |
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| 399 | #ifdef DL_FAST |
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| 400 | void *handle = dlopen(module.data(), RTLD_LAZY | RTLD_NODELETE); |
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| 401 | #else |
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| 402 | void *handle = dlopen(module.data(), RTLD_LAZY); |
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| 403 | #endif |
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| 404 | if (handle == NULL) |
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| 405 | dodo_throw exception::basic(exception::MODULE_PCEXECUTIONTHREAD, THREADEX_MODULE, exception::ERRNO_DYNLOAD, 0, dlerror(), __LINE__, __FILE__); |
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| 406 | |
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| 407 | initModule init = (initModule)dlsym(handle, "initPcExecutionThreadModule"); |
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| 408 | if (init == NULL) |
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| 409 | dodo_throw exception::basic(exception::MODULE_PCEXECUTIONTHREAD, THREADEX_MODULE, exception::ERRNO_DYNLOAD, 0, dlerror(), __LINE__, __FILE__); |
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| 410 | |
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| 411 | __module__ mod = init(toInit); |
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| 412 | |
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| 413 | deinitModule deinit = (deinitModule)dlsym(handle, "deinitPcExecutionThreadModule"); |
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| 414 | if (deinit != NULL) |
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| 415 | deinit(mod.cookie); |
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| 416 | |
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| 417 | #ifndef DL_FAST |
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| 418 | if (dlclose(handle) != 0) |
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| 419 | dodo_throw exception::basic(exception::MODULE_PCEXECUTIONTHREAD, THREADEX_MODULE, exception::ERRNO_DYNLOAD, 0, dlerror(), __LINE__, __FILE__); |
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| 420 | |
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| 421 | #endif |
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| 422 | |
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| 423 | return mod; |
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| 424 | } |
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| 425 | #endif |
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| 426 | |
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| 427 | //------------------------------------------------------------------- |
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| 428 | |
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| 429 | dodo::exception::basic * |
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| 430 | thread::exception() |
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| 431 | { |
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| 432 | return handle->ex; |
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| 433 | } |
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| 434 | |
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| 435 | //------------------------------------------------------------------- |
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| 436 | |
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| 437 | bool |
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| 438 | thread::self() const |
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| 439 | { |
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| 440 | return (pthread_equal(pthread_self(), handle->thread) > 0); |
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| 441 | } |
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| 442 | |
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| 443 | //------------------------------------------------------------------- |
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