error_code.cpp 16 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537
  1. //Error_code是错误码的底层通用模块,
  2. //功能:用作故障分析和处理。
  3. //用法:所有的功能接口函数return错误管理类,
  4. //然后上层判断分析错误码,并进行故障处理。
  5. #include "error_code.h"
  6. /////////////////////////////////////////////
  7. //构造函数
  8. Error_manager::Error_manager()
  9. {
  10. m_error_code = SUCCESS;
  11. m_error_level = NORMAL;
  12. pm_error_description = 0;
  13. m_description_length = 0;
  14. return ;
  15. }
  16. //拷贝构造
  17. Error_manager::Error_manager(const Error_manager & error_manager)
  18. {
  19. this->m_error_code = error_manager.m_error_code;
  20. this->m_error_level = error_manager.m_error_level;
  21. pm_error_description = NULL;
  22. m_description_length = 0;
  23. reallocate_memory_and_copy_string(error_manager.pm_error_description, error_manager.m_description_length);
  24. return ;
  25. }
  26. //赋值构造
  27. Error_manager::Error_manager(Error_code error_code, Error_level error_level,
  28. const char* p_error_description, int description_length)
  29. {
  30. m_error_code = error_code;
  31. m_error_level = error_level;
  32. pm_error_description = NULL;
  33. m_description_length = 0;
  34. reallocate_memory_and_copy_string(p_error_description, description_length);
  35. return ;
  36. }
  37. //赋值构造
  38. Error_manager::Error_manager(Error_code error_code, Error_level error_level , std::string & error_aggregate_string)
  39. {
  40. m_error_code = error_code;
  41. m_error_level = error_level;
  42. pm_error_description = NULL;
  43. m_description_length = 0;
  44. reallocate_memory_and_copy_string(error_aggregate_string);
  45. return ;
  46. }
  47. //析构函数
  48. Error_manager::~Error_manager()
  49. {
  50. free_description();
  51. }
  52. //初始化
  53. void Error_manager::error_manager_init()
  54. {
  55. error_manager_clear_all();
  56. return;
  57. }
  58. //初始化
  59. void Error_manager::error_manager_init(Error_code error_code, Error_level error_level, const char* p_error_description, int description_length)
  60. {
  61. m_error_code = error_code;
  62. m_error_level = error_level;
  63. reallocate_memory_and_copy_string(p_error_description, description_length);
  64. return ;
  65. }
  66. //初始化
  67. void Error_manager::error_manager_init(Error_code error_code, Error_level error_level , std::string & error_aggregate_string)
  68. {
  69. m_error_code = error_code;
  70. m_error_level = error_level;
  71. reallocate_memory_and_copy_string(error_aggregate_string);
  72. return ;
  73. }
  74. //重置
  75. void Error_manager::error_manager_reset(Error_code error_code, Error_level error_level, const char* p_error_description, int description_length)
  76. {
  77. m_error_code = error_code;
  78. m_error_level = error_level;
  79. reallocate_memory_and_copy_string(p_error_description, description_length);
  80. return ;
  81. }
  82. //重置
  83. void Error_manager::error_manager_reset(Error_code error_code, Error_level error_level , std::string & error_aggregate_string)
  84. {
  85. m_error_code = error_code;
  86. m_error_level = error_level;
  87. reallocate_memory_and_copy_string(error_aggregate_string);
  88. return ;
  89. }
  90. //重置
  91. void Error_manager::error_manager_reset(const Error_manager & error_manager)
  92. {
  93. this->m_error_code = error_manager.m_error_code;
  94. this->m_error_level = error_manager.m_error_level;
  95. reallocate_memory_and_copy_string(error_manager.pm_error_description, error_manager.m_description_length);
  96. return ;
  97. }
  98. //清除所有内容
  99. void Error_manager::error_manager_clear_all()
  100. {
  101. m_error_code = SUCCESS;
  102. m_error_level = NORMAL;
  103. free_description();
  104. }
  105. //重载=
  106. Error_manager& Error_manager::operator=(const Error_manager & error_manager)
  107. {
  108. error_manager_reset(error_manager);
  109. }
  110. //重载=,支持Error_manager和Error_code的直接转化,会清空错误等级和描述
  111. Error_manager& Error_manager::operator=(Error_code error_code)
  112. {
  113. error_manager_clear_all();
  114. set_error_code(error_code);
  115. }
  116. //重载==
  117. bool Error_manager::operator==(const Error_manager & error_manager)
  118. {
  119. is_equal_error_manager(error_manager);
  120. }
  121. //重载==,支持Error_manager和Error_code的直接比较
  122. bool Error_manager::operator==(Error_code error_code)
  123. {
  124. if(m_error_code == error_code)
  125. {
  126. return true;
  127. }
  128. else
  129. {
  130. return false;
  131. }
  132. }
  133. //重载!=
  134. bool Error_manager::operator!=(const Error_manager & error_manager)
  135. {
  136. ! is_equal_error_manager(error_manager);
  137. }
  138. //重载!=,支持Error_manager和Error_code的直接比较
  139. bool Error_manager::operator!=(Error_code error_code)
  140. {
  141. if(m_error_code != error_code)
  142. {
  143. return true;
  144. }
  145. else
  146. {
  147. return false;
  148. }
  149. }
  150. //重载<<,支持cout<<
  151. std::ostream & operator<<(std::ostream &out, Error_manager &error_manager)
  152. {
  153. out << error_manager.to_string();
  154. return out;
  155. }
  156. //获取错误码
  157. Error_code Error_manager::get_error_code()
  158. {
  159. return m_error_code;
  160. }
  161. //获取错误等级
  162. Error_level Error_manager::get_error_level()
  163. {
  164. return m_error_level;
  165. }
  166. //获取错误描述的指针,(浅拷贝)
  167. char* Error_manager::get_error_description()
  168. {
  169. return pm_error_description;
  170. }
  171. int Error_manager::get_description_length()
  172. {
  173. return m_description_length;
  174. }
  175. //复制错误描述,(深拷贝)
  176. //output:p_error_description 错误描述的字符串指针,不可以为NULL,必须要有实际的内存
  177. //output:description_length 错误描述的字符串长度,不可以为0,长度最好足够大,一般256即可。
  178. void Error_manager::copy_error_description(const char* p_error_description, int description_length)
  179. {
  180. if(p_error_description != NULL && pm_error_description != NULL)
  181. {
  182. char *pt_source = (char *)p_error_description;
  183. char* pt_destination = pm_error_description;
  184. int t_length_min = m_description_length;
  185. if(m_description_length > description_length)
  186. {
  187. t_length_min = description_length;
  188. }
  189. for(int i=0;i<t_length_min; i++)
  190. {
  191. *pt_destination = *pt_source;
  192. pt_destination++;
  193. pt_source++;
  194. }
  195. }
  196. return;
  197. }
  198. //复制错误描述,(深拷贝)
  199. //output:error_description_string 错误描述的string
  200. void Error_manager::copy_error_description(std::string & error_description_string)
  201. {
  202. if( (!error_description_string.empty() ) && pm_error_description != NULL)
  203. {
  204. error_description_string = pm_error_description;
  205. }
  206. return;
  207. }
  208. //设置错误码
  209. void Error_manager::set_error_code(Error_code error_code)
  210. {
  211. m_error_code = error_code;
  212. return;
  213. }
  214. //比较错误等级并升级,取高等级的结果
  215. void Error_manager::set_error_level_up(Error_level error_level)
  216. {
  217. if(m_error_level < error_level)
  218. {
  219. m_error_level = error_level;
  220. }
  221. return;
  222. }
  223. //比较错误等级并降级,取低等级的结果
  224. void Error_manager::set_error_level_down(Error_level error_level)
  225. {
  226. if(m_error_level > error_level)
  227. {
  228. m_error_level = error_level;
  229. }
  230. return;
  231. }
  232. //错误等级,设定到固定值
  233. void Error_manager::set_error_level_location(Error_level error_level)
  234. {
  235. m_error_level = error_level;
  236. return;
  237. }
  238. //设置错误描述
  239. void Error_manager::set_error_description(const char* p_error_description, int description_length)
  240. {
  241. reallocate_memory_and_copy_string(p_error_description, description_length);
  242. return ;
  243. }
  244. //设置错误描述
  245. void Error_manager::set_error_description(std::string & error_description_string)
  246. {
  247. reallocate_memory_and_copy_string(error_description_string);
  248. return ;
  249. }
  250. //尾部追加错误描述
  251. void Error_manager::add_error_description(const char* p_error_description, int description_length)
  252. {
  253. if(p_error_description !=NULL)
  254. {
  255. char* pt_description_front = pm_error_description;
  256. int t_description_front_length = m_description_length;
  257. char* pt_description_back = (char *)p_error_description;
  258. int t_description_back_length = 0;
  259. if(description_length == 0)
  260. {
  261. t_description_back_length = 0;
  262. while (*pt_description_back != '\0')
  263. {
  264. t_description_back_length++;
  265. pt_description_back++;
  266. }
  267. t_description_back_length++;
  268. pt_description_back = (char *)p_error_description;
  269. }
  270. else
  271. {
  272. t_description_back_length = description_length;
  273. }
  274. int t_description_new_length = t_description_front_length + 5 + t_description_back_length - 1;
  275. char* pt_description_new = (char*) malloc(t_description_new_length );
  276. sprintf(pt_description_new, "%s ### %s", pt_description_front, pt_description_back);
  277. free_description();
  278. pm_error_description = pt_description_new;
  279. m_description_length = t_description_new_length;
  280. }
  281. return ;
  282. }
  283. //尾部追加错误描述
  284. void Error_manager::add_error_description(std::string & error_description_string)
  285. {
  286. if( ! error_description_string.empty() )
  287. {
  288. std::string t_description_string = pm_error_description ;
  289. t_description_string += (" ### "+ error_description_string);
  290. reallocate_memory_and_copy_string(t_description_string);
  291. }
  292. }
  293. //比较错误是否相同,
  294. // 注:只比较错误码和等级
  295. bool Error_manager::is_equal_error_manager(const Error_manager & error_manager)
  296. {
  297. if(this->m_error_code == error_manager.m_error_code
  298. && this->m_error_level == error_manager.m_error_level)
  299. {
  300. return true;
  301. }
  302. else
  303. {
  304. return false;
  305. }
  306. }
  307. //比较并覆盖错误,讲低级错误转为字符串存放于描述中,
  308. //如果错误相同,则保留this的,将输入参数转入描述。
  309. void Error_manager::compare_and_cover_error(const Error_manager & error_manager)
  310. {
  311. if(this->m_error_code == SUCCESS)
  312. {
  313. error_manager_reset(error_manager);
  314. }
  315. else if (error_manager.m_error_code == SUCCESS)
  316. {
  317. return;
  318. }
  319. else
  320. {
  321. Error_manager t_error_manager_new;
  322. char* pt_string_inside = NULL;
  323. int t_string_inside_length = 0;
  324. if(this->m_error_level < error_manager.m_error_level)
  325. {
  326. t_string_inside_length = ERROR_NAMAGER_TO_STRING_FRONT_LENGTH + this->m_description_length;
  327. pt_string_inside = (char*)malloc(t_string_inside_length);
  328. translate_error_to_string(pt_string_inside, t_string_inside_length);
  329. error_manager_reset(error_manager);
  330. add_error_description(pt_string_inside,t_string_inside_length);
  331. }
  332. else
  333. {
  334. t_string_inside_length = ERROR_NAMAGER_TO_STRING_FRONT_LENGTH + error_manager.m_description_length;
  335. pt_string_inside = (char*)malloc(t_string_inside_length);
  336. ((Error_manager & )error_manager).translate_error_to_string(pt_string_inside, t_string_inside_length);
  337. add_error_description(pt_string_inside,t_string_inside_length);
  338. }
  339. }
  340. }
  341. //比较并覆盖错误,讲低级错误转为字符串存放于描述中,
  342. //如果错误相同,则保留this的,将输入参数转入描述。
  343. void Error_manager::compare_and_cover_error( Error_manager * p_error_manager)
  344. {
  345. if(this->m_error_code == SUCCESS)
  346. {
  347. error_manager_reset(*p_error_manager);
  348. }
  349. else if (p_error_manager->m_error_code == SUCCESS)
  350. {
  351. //
  352. }
  353. else
  354. {
  355. Error_manager t_error_manager_new;
  356. char* pt_string_inside = NULL;
  357. int t_string_inside_length = 0;
  358. if(this->m_error_level < p_error_manager->m_error_level)
  359. {
  360. t_string_inside_length = ERROR_NAMAGER_TO_STRING_FRONT_LENGTH + this->m_description_length;
  361. pt_string_inside = (char*)malloc(t_string_inside_length);
  362. translate_error_to_string(pt_string_inside, t_string_inside_length);
  363. error_manager_reset(*p_error_manager);
  364. add_error_description(pt_string_inside,t_string_inside_length);
  365. }
  366. else
  367. {
  368. t_string_inside_length = ERROR_NAMAGER_TO_STRING_FRONT_LENGTH + p_error_manager->m_description_length;
  369. pt_string_inside = (char*)malloc(t_string_inside_length);
  370. p_error_manager->translate_error_to_string(pt_string_inside, t_string_inside_length);
  371. add_error_description(pt_string_inside,t_string_inside_length);
  372. }
  373. }
  374. }
  375. //将所有的错误信息,格式化为字符串,用作日志打印。
  376. //output:p_error_description 错误汇总的字符串指针,不可以为NULL,必须要有实际的内存
  377. //output:description_length 错误汇总的字符串长度,不可以为0,长度最好足够大,一般256即可。
  378. void Error_manager::translate_error_to_string(char* p_error_aggregate, int aggregate_length )
  379. {
  380. char t_string_array[ERROR_NAMAGER_TO_STRING_FRONT_LENGTH] = {0};
  381. char* pt_index_front = t_string_array;
  382. char* pt_index_back = pm_error_description;
  383. char* pt_index = p_error_aggregate;
  384. sprintf(t_string_array, "error_code:0x%08x, error_level:%02d, error_description:", m_error_code , m_error_level );
  385. int t_length_min = m_description_length + ERROR_NAMAGER_TO_STRING_FRONT_LENGTH -1;
  386. if(t_length_min > aggregate_length)
  387. {
  388. t_length_min = aggregate_length;
  389. }
  390. for(int i=0;i<t_length_min; i++)
  391. {
  392. if(i < ERROR_NAMAGER_TO_STRING_FRONT_LENGTH -1)
  393. {
  394. *pt_index = *pt_index_front;
  395. pt_index++;
  396. pt_index_front++;
  397. }
  398. else
  399. {
  400. *pt_index = *pt_index_back;
  401. pt_index++;
  402. pt_index_back++;
  403. }
  404. }
  405. }
  406. //output:error_description_string 错误汇总的string
  407. void Error_manager::translate_error_to_string(std::string & error_aggregate_string)
  408. {
  409. char t_string_array[ERROR_NAMAGER_TO_STRING_FRONT_LENGTH] = {0};
  410. sprintf(t_string_array, "error_code:0x%08x, error_level:%02d, error_description:", m_error_code , m_error_level );
  411. error_aggregate_string = t_string_array ;
  412. if(pm_error_description != NULL)
  413. {
  414. error_aggregate_string += pm_error_description;
  415. }
  416. else
  417. {
  418. //error_aggregate_string += "NULL";
  419. }
  420. }
  421. //错误码转字符串的简易版,可支持cout<<
  422. //return 错误汇总的string
  423. std::string Error_manager::to_string()
  424. {
  425. std::string t_string;
  426. translate_error_to_string(t_string);
  427. return t_string;
  428. }
  429. //释放错误描述的内存,
  430. void Error_manager::free_description()
  431. {
  432. if(pm_error_description != NULL)
  433. {
  434. free (pm_error_description);
  435. pm_error_description = NULL;
  436. }
  437. m_description_length = 0;
  438. }
  439. //重新分配错误描述的内存,并从外部拷贝新的(深拷贝)
  440. //input:p_error_description 错误描述的字符串指针,可以为NULL,
  441. //input:description_length 错误描述的字符串长度,如果为0,则从p_error_description里面获取有效的长度
  442. void Error_manager::reallocate_memory_and_copy_string(const char* p_error_description, int description_length)
  443. {
  444. free_description();
  445. if(p_error_description != NULL)
  446. {
  447. char* pt_source = (char *)p_error_description;
  448. char* pt_destination = NULL;
  449. if(description_length == 0)
  450. {
  451. m_description_length = 0;
  452. while (*pt_source != '\0')
  453. {
  454. m_description_length++;
  455. pt_source++;
  456. }
  457. m_description_length++;
  458. pt_source = (char *)p_error_description;
  459. }
  460. else
  461. {
  462. m_description_length = description_length;
  463. }
  464. pm_error_description = (char*) malloc(m_description_length );
  465. pt_destination = pm_error_description;
  466. for(int i=0;i<m_description_length; i++)
  467. {
  468. *pt_destination = *pt_source;
  469. pt_destination++;
  470. pt_source++;
  471. }
  472. }
  473. return;
  474. }
  475. //重新分配错误描述的内存,并从外部拷贝新的(深拷贝)
  476. //input:error_aggregate_string 错误描述的string
  477. void Error_manager::reallocate_memory_and_copy_string(std::string & error_aggregate_string)
  478. {
  479. free_description();
  480. if( ! error_aggregate_string.empty())
  481. {
  482. m_description_length = error_aggregate_string.length()+1;
  483. pm_error_description = (char*) malloc( m_description_length );
  484. strcpy(pm_error_description , error_aggregate_string.c_str() );
  485. }
  486. }