{"id":728,"date":"2022-11-23T23:09:04","date_gmt":"2022-11-23T15:09:04","guid":{"rendered":"https:\/\/niuguodong.com\/?p=728"},"modified":"2025-12-24T13:08:12","modified_gmt":"2025-12-24T05:08:12","slug":"c%e5%a4%9a%e7%ba%bf%e7%a8%8btss_t","status":"publish","type":"post","link":"https:\/\/niuguodong.com\/index.php\/2022\/11\/23\/c%e5%a4%9a%e7%ba%bf%e7%a8%8btss_t\/","title":{"rendered":"C\u591a\u7ebf\u7a0btss_t"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">tss_t tss_key\uff0c\u4e3a\u4ec0\u4e48\u4e0d\u540c\u7684\u7ebf\u7a0b\uff0c\u4f7f\u7528\u540c\u4e00\u4e2atss_key\uff0c\u5f97\u5230\u7684\u662f\u4e0d\u540c\u7684\u5b58\u50a8\uff1f<\/h2>\n\n\n\n<p>\u8fd9\u662f\u4e00\u4e2a\u975e\u5e38\u597d\u7684\u95ee\u9898\uff0c\u5b83\u89e6\u53ca\u4e86\u7ebf\u7a0b\u7279\u5b9a\u5b58\u50a8\uff08TSS\uff09\u673a\u5236\u7684\u6838\u5fc3\u8bbe\u8ba1\u601d\u60f3\u3002<\/p>\n\n\n\n<p>\u7b80\u5355\u6765\u8bf4\uff0c\u7b54\u6848\u662f\uff1a<strong><code>tss_key<\/code>&nbsp;\u672c\u8eab\u4e0d\u5b58\u50a8\u6570\u636e\uff0c\u5b83\u53ea\u662f\u4e00\u4e2a\u201c\u94a5\u5319\u201d\u6216\u201c\u7d22\u5f15\u201d\uff0c\u7cfb\u7edf\u5229\u7528\u8fd9\u628a\u94a5\u5319\u4e3a\u6bcf\u4e2a\u7ebf\u7a0b\u5728\u5185\u90e8\u7ef4\u62a4\u4e86\u4e00\u4e2a\u72ec\u7acb\u7684\u201c\u5b58\u50a8\u69fd\u201d\u3002<\/strong><\/p>\n\n\n\n<p>\u6211\u4eec\u53ef\u4ee5\u7528\u4e00\u4e2a\u751f\u52a8\u7684\u6bd4\u55bb\u6765\u7406\u89e3\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u50a8\u7269\u67dc\u6bd4\u55bb<\/h3>\n\n\n\n<p>\u60f3\u8c61\u4e00\u4e2a\u5927\u578b\u5065\u8eab\u623f\uff08\u8fd9\u4ee3\u8868\u4f60\u7684\u6574\u4e2a\u7a0b\u5e8f\uff09\uff0c\u91cc\u9762\u6709\u5f88\u591a\u4f1a\u5458\uff08\u4ee3\u8868\u7ebf\u7a0b\uff09\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong><code>tss_create(&amp;tss_key, destructor)<\/code>&nbsp;- \u521b\u5efa\u50a8\u7269\u67dc\u7cfb\u7edf<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u5065\u8eab\u623f\u524d\u53f0\u521b\u5efa\u4e86\u4e00\u5957\u50a8\u7269\u67dc\u7cfb\u7edf\uff08<code>tss_key<\/code>&nbsp;\u5c31\u662f\u8fd9\u4e2a\u7cfb\u7edf\u7684\u552f\u4e00\u6807\u8bc6\u7b26\/\u603b\u94a5\u5319\uff09\u3002<\/li>\n\n\n\n<li>\u4ed6\u4eec\u8fd8\u89c4\u5b9a\u4e86\u6e05\u7406\u89c4\u5219\uff08<code>destructor<\/code>\uff09\uff1a\u5f53\u4f1a\u5458\u79bb\u5f00\u65f6\uff0c\u5fc5\u987b\u6e05\u7a7a\u4ed6\u4f7f\u7528\u7684\u6240\u6709\u67dc\u5b50\uff0c\u5426\u5219\u5065\u8eab\u623f\u4f1a\u5e2e\u4ed6\u6e05\u7406\u5e76\u53ef\u80fd\u6536\u53d6\u8d39\u7528\uff08\u9632\u6b62\u5185\u5b58\u6cc4\u6f0f\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong><code>tss_set(tss_key, value)<\/code>&nbsp;- \u5b58\u653e\u7269\u54c1<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u4f1a\u5458A\uff08\u7ebf\u7a0bA\uff09\u6765\u4e86\uff0c\u4ed6\u60f3\u5b58\u5305\u3002\u4ed6\u544a\u8bc9\u524d\u53f0\uff1a\u201c\u7528<strong>\u8fd9\u4e2a\u50a8\u7269\u67dc\u7cfb\u7edf<\/strong>\uff08<code>tss_key<\/code>\uff09\uff0c\u628a\u6211\u7684\u5305\uff08<code>value<\/code>\uff09\u5b58\u5230<strong>\u5c5e\u4e8e\u6211\u7684\u90a3\u4e2a\u67dc\u5b50<\/strong>\u91cc\u3002\u201d<\/li>\n\n\n\n<li>\u524d\u53f0\u5c31\u4f1a\u5728\u7cfb\u7edf\u4e2d\u627e\u5230\u4e13\u95e8\u4e3a\u4f1a\u5458A\u5206\u914d\u7684\u90a3\u4e2a\u7a7a\u67dc\u5b50\uff0c\u628a\u5305\u653e\u8fdb\u53bb\u3002<\/li>\n\n\n\n<li>\u4f1a\u5458B\uff08\u7ebf\u7a0bB\uff09\u4e5f\u6765\u5b58\u5305\uff0c\u4ed6\u4e5f\u4f7f\u7528<strong>\u540c\u4e00\u4e2a\u50a8\u7269\u67dc\u7cfb\u7edf<\/strong>\uff08<code>tss_key<\/code>\uff09\uff0c\u4f46\u524d\u53f0\u4f1a\u628a\u4ed6\u7684\u5305\u653e\u5230<strong>\u4e13\u95e8\u4e3a\u4f1a\u5458B\u5206\u914d\u7684\u53e6\u4e00\u4e2a\u67dc\u5b50<\/strong>\u91cc\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong><code>tss_get(tss_key)<\/code>&nbsp;- \u53d6\u56de\u7269\u54c1<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u4f1a\u5458A later\u56de\u6765\u53d6\u5305\uff0c\u4ed6\u8bf4\uff1a\u201c\u7528<strong>\u8fd9\u4e2a\u50a8\u7269\u67dc\u7cfb\u7edf<\/strong>\uff08<code>tss_key<\/code>\uff09\uff0c\u628a<strong>\u6211\u7684\u67dc\u5b50<\/strong>\u91cc\u7684\u4e1c\u897f\u7ed9\u6211\u3002\u201d \u524d\u53f0\u5c31\u4f1a\u628a\u4ed6\u67dc\u5b50\u91cc\u7684\u5305\u62ff\u7ed9\u4ed6\u3002<\/li>\n\n\n\n<li>\u4f1a\u5458B\u6765\u53d6\u4ed6\u7684\u5305\uff0c\u524d\u53f0\u4f1a\u4ece<strong>\u53e6\u4e00\u4e2a\u67dc\u5b50<\/strong>\u91cc\u62ff\u51fa\u4ed6\u7684\u4e1c\u897f\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p><strong>\u5173\u952e\u70b9\u5728\u4e8e<\/strong>\uff1a\u867d\u7136\u6240\u6709\u4eba\u90fd\u4f7f\u7528\u540c\u4e00\u4e2a\u201c\u50a8\u7269\u67dc\u7cfb\u7edf\u201d\uff08<code>tss_key<\/code>\uff09\uff0c\u4f46\u8fd9\u4e2a\u7cfb\u7edf\u5185\u90e8\u4e3a\u6bcf\u4e2a\u4f1a\u5458\uff08\u7ebf\u7a0b\uff09\u90fd\u5206\u914d\u4e86<strong>\u4e13\u5c5e\u7684\u3001\u79c1\u6709\u7684\u5b58\u50a8\u7a7a\u95f4<\/strong>\u3002<code>tss_key<\/code>&nbsp;\u53ea\u662f\u7528\u6765\u6807\u8bc6\u201c\u8981\u4f7f\u7528\u54ea\u4e2a\u7cfb\u7edf\u201d\uff0c\u800c\u7cfb\u7edf\u5185\u90e8\u81ea\u52a8\u5c06\u201c\u7cfb\u7edf\u201d\u548c\u201c\u7ebf\u7a0b\u201d\u7ed3\u5408\u8d77\u6765\uff0c\u5b9a\u4f4d\u5230\u6b63\u786e\u7684\u7269\u7406\u5b58\u50a8\u4f4d\u7f6e\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u6280\u672f\u5c42\u9762\u7684\u89e3\u91ca<\/h3>\n\n\n\n<p>\u5728\u6280\u672f\u5b9e\u73b0\u4e0a\uff0cC11 \u8fd0\u884c\u65f6\u5e93\uff08\u6216\u64cd\u4f5c\u7cfb\u7edf\u7ebf\u7a0b\u5e93\uff09\u4f1a\u7ef4\u62a4\u4e00\u4e2a\u5185\u90e8\u6570\u636e\u7ed3\u6784\uff0c\u901a\u5e38\u53ef\u4ee5\u7406\u89e3\u4e3a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4e00\u4e2a\u5168\u5c40\u7684 TSS \u952e\u6570\u7ec4<\/strong>\uff1a<code>tss_key<\/code>&nbsp;\u662f\u8fd9\u4e2a\u6570\u7ec4\u7684\u4e00\u4e2a\u7d22\u5f15\u3002\u6bcf\u4e2a\u952e\u5728\u521b\u5efa\u65f6\u4f1a\u8bb0\u5f55\u5b83\u7684\u9500\u6bc1\u51fd\u6570\u7b49\u4fe1\u606f\u3002<\/li>\n\n\n\n<li><strong>\u6bcf\u4e2a\u7ebf\u7a0b\u90fd\u6709\u4e00\u4e2a TSD\uff08Thread-Specific Data\uff09\u6307\u9488\u6570\u7ec4<\/strong>\uff1a\u8fd9\u4e2a\u6570\u7ec4\u4e0e\u5168\u5c40\u7684 TSS \u952e\u6570\u7ec4\u4e00\u4e00\u5bf9\u5e94\u3002\u6570\u7ec4\u7684\u6bcf\u4e2a\u5143\u7d20\u662f\u4e00\u4e2a&nbsp;<code>void*<\/code>&nbsp;\u6307\u9488\uff0c\u7528\u4e8e\u5b58\u50a8\u8be5\u7ebf\u7a0b\u5bf9\u5e94\u8fd9\u4e2a\u952e\u7684\u6570\u636e\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u5f53\u4f60\u8c03\u7528&nbsp;<code>tss_set(tss_key, value)<\/code>&nbsp;\u65f6\uff0c\u5b9e\u9645\u53d1\u751f\u7684\u662f\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u83b7\u53d6\u5f53\u524d\u7ebf\u7a0b\u7684 TSD \u6307\u9488\u6570\u7ec4\u3002<\/li>\n\n\n\n<li>\u5c06&nbsp;<code>value<\/code>&nbsp;\u5b58\u50a8\u5230\u8be5\u6570\u7ec4\u7684\u7b2c&nbsp;<code>tss_key<\/code>&nbsp;\u4e2a\u4f4d\u7f6e\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u5f53\u4f60\u8c03\u7528&nbsp;<code>tss_get(tss_key)<\/code>&nbsp;\u65f6\uff0c\u5b9e\u9645\u53d1\u751f\u7684\u662f\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u83b7\u53d6\u5f53\u524d\u7ebf\u7a0b\u7684 TSD \u6307\u9488\u6570\u7ec4\u3002<\/li>\n\n\n\n<li>\u8fd4\u56de\u8be5\u6570\u7ec4\u7b2c&nbsp;<code>tss_key<\/code>&nbsp;\u4e2a\u4f4d\u7f6e\u5b58\u50a8\u7684\u503c\u3002<\/li>\n<\/ol>\n\n\n\n<p><strong>\u56e0\u6b64\uff0c<code>tss_key<\/code>&nbsp;\u5c31\u50cf\u4e00\u4e2a\u4e8c\u7ef4\u5750\u6807\u7684&nbsp;<code>X<\/code>&nbsp;\u8f74\uff08\u952e\u7d22\u5f15\uff09\uff0c\u800c\u7ebf\u7a0bID\u662f&nbsp;<code>Y<\/code>&nbsp;\u8f74\uff08\u7ebf\u7a0b\u7d22\u5f15\uff09\u3002\u7cfb\u7edf\u901a\u8fc7&nbsp;<code>(\u7ebf\u7a0bID, tss_key)<\/code>&nbsp;\u8fd9\u4e2a\u552f\u4e00\u7684\u5750\u6807\u5bf9\u6765\u5b9a\u4f4d\u5230\u6bcf\u4e2a\u7ebf\u7a0b\u72ec\u6709\u7684\u6570\u636e\u5b58\u50a8\u5355\u5143\u3002<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u603b\u7ed3<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u7ec4\u4ef6<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u89d2\u8272<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u7c7b\u6bd4<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong><code>tss_key<\/code><\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\"><strong>\u6807\u8bc6\u7b26\/\u7d22\u5f15<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">\u50a8\u7269\u67dc\u7cfb\u7edf\u7684ID\u53f7<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>\u7cfb\u7edf\u5185\u90e8\u6570\u636e\u7ed3\u6784<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\"><strong>\u5c06\u952e\u6620\u5c04\u5230\u7ebf\u7a0b\u5c40\u90e8\u5b58\u50a8<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">\u50a8\u7269\u67dc\u672c\u8eab\uff0c\u4e3a\u6bcf\u4e2a\u4f1a\u5458\u5206\u914d\u4e86\u72ec\u7acb\u683c\u95f4<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong><code>tss_set(key, val)<\/code><\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\"><strong>\u4e3a\u5f53\u524d\u7ebf\u7a0b\u5728\u6307\u5b9a\u952e\u4f4d\u7f6e\u5b58\u50a8\u503c<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">\u4f1a\u5458A\u628a\u5305\u653e\u8fdb\u81ea\u5df1\u7684\u683c\u5b50<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong><code>tss_get(key)<\/code><\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\"><strong>\u4e3a\u5f53\u524d\u7ebf\u7a0b\u83b7\u53d6\u6307\u5b9a\u952e\u4f4d\u7f6e\u7684\u503c<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">\u4f1a\u5458A\u4ece\u81ea\u5df1\u7684\u683c\u5b50\u53d6\u51fa\u5305<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u8fd9\u79cd\u8bbe\u8ba1\u4f7f\u5f97&nbsp;<code>tss_key<\/code>&nbsp;\u53ef\u4ee5\u4f5c\u4e3a\u4e00\u4e2a\u5168\u5c40\u7684\u3001\u5171\u4eab\u7684\u201c\u53e5\u67c4\u201d\uff0c\u800c\u6bcf\u4e2a\u7ebf\u7a0b\u901a\u8fc7\u8fd9\u4e2a\u53e5\u67c4\u8bbf\u95ee\u5230\u7684\u5374\u662f\u81ea\u5df1\u72ec\u7acb\u7684\u6570\u636e\uff0c\u5b8c\u7f8e\u5730\u5b9e\u73b0\u4e86\u201c\u4e00\u628a\u94a5\u5319\uff0c\u591a\u4e2a\u4fdd\u9669\u7bb1\u201d\u7684\u6548\u679c\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">tss_t tss_key\uff0c\u4e3a\u4ec0\u4e48\u8981\u8bbe\u8ba1\u6210\u53ef\u4ee5\u8ba9\u591a\u4e2a\u7ebf\u7a0b\u90fd\u4f7f\u7528\u4e00\u4e2atss_key\uff1f<\/h2>\n\n\n\n<p>\u8fd9\u662f\u4e00\u4e2a\u975e\u5e38\u6df1\u523b\u7684\u8bbe\u8ba1\u95ee\u9898\u3002\u5c06&nbsp;<code>tss_key<\/code>&nbsp;\u8bbe\u8ba1\u6210\u53ef\u88ab\u591a\u4e2a\u7ebf\u7a0b\u5171\u4eab\u4f7f\u7528\uff0c\u800c\u4e0d\u662f\u4e3a\u6bcf\u4e2a\u7ebf\u7a0b\u521b\u5efa\u72ec\u7acb\u7684\u952e\uff0c\u662f\u7ebf\u7a0b\u7279\u5b9a\u5b58\u50a8\uff08TSS\uff09\u673a\u5236\u7684\u6838\u5fc3\u548c\u7cbe\u5999\u4e4b\u5904\u3002<\/p>\n\n\n\n<p>\u8fd9\u6837\u505a\u7684\u6839\u672c\u539f\u56e0\u662f\uff1a<strong><code>tss_key<\/code>&nbsp;\u7684\u76ee\u7684\u4e0d\u662f\u6807\u8bc6\u7ebf\u7a0b\uff0c\u800c\u662f\u6807\u8bc6\u4e00\u79cd\u201c\u6570\u636e\u7c7b\u578b\u201d\u6216\u201c\u6570\u636e\u69fd\u4f4d\u201d<\/strong>\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u53ef\u4ee5\u4ece\u4ee5\u4e0b\u51e0\u4e2a\u5173\u952e\u89d2\u5ea6\u6765\u7406\u89e3\u8fd9\u4e2a\u8bbe\u8ba1\u7684\u5fc5\u8981\u6027\u548c\u4f18\u52bf\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u6807\u8bc6\u201c\u6570\u636e\u7c7b\u578b\u201d\uff0c\u800c\u975e\u201c\u7ebf\u7a0b\u201d<\/h3>\n\n\n\n<p>\u60f3\u8c61\u4e00\u4e0b\uff0c\u4f60\u662f\u4e00\u4e2a\u5e93\u7684\u4f5c\u8005\uff08\u6bd4\u5982\u5b9e\u73b0\u4e00\u4e2a\u6570\u636e\u5e93\u8fde\u63a5\u6c60\u6216\u4e00\u4e2a\u6570\u5b66\u8ba1\u7b97\u5e93\uff09\u3002\u4f60\u9700\u8981\u5728\u5e93\u5185\u90e8\u4e3a\u6bcf\u4e2a\u7ebf\u7a0b\u5b58\u50a8\u4e00\u4e9b\u4e0a\u4e0b\u6587\u4fe1\u606f\uff08\u4f8b\u5982\uff0c\u6570\u636e\u5e93\u8fde\u63a5\u5bf9\u8c61\u3001\u968f\u673a\u6570\u751f\u6210\u5668\u72b6\u6001\u3001\u9519\u8bef\u7801\u7b49\uff09\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4f60\u7684\u9700\u6c42\u662f<\/strong>\uff1a\u201c\u6211\u9700\u8981\u4e00\u4e2a\u5730\u65b9\u6765\u5b58\u653e<strong>\u2018\u6211\u7684\u5e93\u7684\u4e0a\u4e0b\u6587\u2019<\/strong>&nbsp;\u8fd9\u4e2a\u6570\u636e\u3002\u201d<\/li>\n\n\n\n<li><strong>\u800c\u4e0d\u662f<\/strong>\uff1a\u201c\u6211\u9700\u8981\u4e3a\u6bcf\u4e2a\u7ebf\u7a0b\u90fd\u521b\u5efa\u4e00\u4e2a\u5168\u65b0\u7684\u3001\u4e0d\u540c\u7684\u6570\u636e\u7c7b\u578b\u3002\u201d<\/li>\n<\/ul>\n\n\n\n<p>\u6240\u6709\u7ebf\u7a0b\u90fd\u9700\u8981\u8bbf\u95ee<strong>\u540c\u4e00\u79cd<\/strong>\u6570\u636e\u2014\u2014\u201c\u6211\u7684\u5e93\u7684\u4e0a\u4e0b\u6587\u201d\u3002<code>tss_key<\/code>&nbsp;\u5c31\u662f\u8fd9\u4e2a\u201c\u6570\u636e\u7c7b\u578b\u201d\u7684\u5168\u5c40\u552f\u4e00\u6807\u8bc6\u7b26\u3002\u6bcf\u4e2a\u7ebf\u7a0b\u901a\u8fc7\u8fd9\u4e2a\u76f8\u540c\u7684\u201c\u94a5\u5319\u201d\uff0c\u53bb\u6253\u5f00\u5c5e\u4e8e\u81ea\u5df1\u7684\u90a3\u628a\u201c\u9501\u201d\uff08\u5373\u83b7\u53d6\u81ea\u5df1\u7ebf\u7a0b\u7684\u4e0a\u4e0b\u6587\u6570\u636e\uff09\u3002<\/p>\n\n\n\n<p><strong>\u5982\u679c\u6bcf\u4e2a\u7ebf\u7a0b\u90fd\u6709\u4e00\u4e2a\u72ec\u7acb\u7684\u952e\uff0c\u90a3\u4e48\u7ebf\u7a0b\u4e4b\u95f4\u5c31\u65e0\u6cd5\u5171\u4eab\u5bf9\u540c\u4e00\u79cd\u6570\u636e\u7c7b\u578b\u7684\u5f15\u7528\uff0c\u6574\u4e2a\u673a\u5236\u5c31\u5931\u53bb\u4e86\u610f\u4e49\u3002<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u5b9e\u73b0\u201c\u58f0\u660e-\u4f7f\u7528\u201d\u5206\u79bb\uff0c\u4ee3\u7801\u66f4\u6e05\u6670\u3001\u53ef\u7ef4\u62a4<\/h3>\n\n\n\n<p>\u8fd9\u79cd\u8bbe\u8ba1\u5141\u8bb8\u201c\u952e\u201d\u7684\u521b\u5efa\u8005\uff08\u901a\u5e38\u662f\u5e93\u7684\u521d\u59cb\u5316\u4ee3\u7801\uff09\u548c\u201c\u952e\u201d\u7684\u4f7f\u7528\u8005\uff08\u5404\u4e2a\u5de5\u4f5c\u7ebf\u7a0b\uff09\u5206\u79bb\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u521d\u59cb\u5316\u9636\u6bb5\uff08\u4e3b\u7ebf\u7a0b\uff09<\/strong>\uff1a<code>tss_create(&amp;library_context_key, destroy_context);<\/code>\n<ul class=\"wp-block-list\">\n<li>\u8fd9\u91cc\u521b\u5efa\u4e86\u4e00\u4e2a\u952e\uff0c\u5e76\u6ce8\u518c\u4e86\u9500\u6bc1\u51fd\u6570\u3002\u8fd9\u76f8\u5f53\u4e8e\u58f0\u660e\uff1a\u201c\u6211\u4eec\u7a0b\u5e8f\u4e2d\u5c06\u5b58\u5728\u4e00\u79cd\u53eb\u505a\u2018library_context\u2019\u7684\u7ebf\u7a0b\u5c40\u90e8\u6570\u636e\uff0c\u5f53\u7ebf\u7a0b\u9000\u51fa\u65f6\uff0c\u8bf7\u7528&nbsp;<code>destroy_context<\/code>&nbsp;\u51fd\u6570\u6765\u6e05\u7406\u5b83\u3002\u201d<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u4f7f\u7528\u9636\u6bb5\uff08\u4efb\u4f55\u7ebf\u7a0b\uff09<\/strong>\uff1a<code>c\/\/ \u5728\u4efb\u4f55\u7ebf\u7a0b\u4e2d\uff0c\u90fd\u53ef\u4ee5\u8fd9\u6837\u4f7f\u7528 my_library_context_t* ctx = tss_get(library_context_key); if (ctx == NULL) { ctx = create_context(); \/\/ \u7b2c\u4e00\u6b21\u4f7f\u7528\u65f6\u521d\u59cb\u5316 tss_set(library_context_key, ctx); } \/\/ ... \u4f7f\u7528 ctx ...<\/code>\n<ul class=\"wp-block-list\">\n<li>\u6240\u6709\u7ebf\u7a0b\u90fd\u4f7f\u7528\u540c\u4e00\u4e2a&nbsp;<code>library_context_key<\/code>&nbsp;\u6765\u83b7\u53d6\u548c\u8bbe\u7f6e<strong>\u5c5e\u4e8e\u81ea\u5df1<\/strong>\u7684\u4e0a\u4e0b\u6587\u3002\u4ee3\u7801\u7b80\u6d01\u7edf\u4e00\uff0c\u4e0d\u9700\u8981\u4e3a\u6bcf\u4e2a\u7ebf\u7a0b\u4f20\u9012\u4e0d\u540c\u7684\u952e\u503c\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u9ad8\u6548\u7684\u8d44\u6e90\u7ba1\u7406\u548c\u751f\u547d\u5468\u671f\u63a7\u5236<\/h3>\n\n\n\n<p>\u8fd9\u662f\u6700\u5173\u952e\u7684\u4f18\u52bf\u4e4b\u4e00\u3002\u9500\u6bc1\u51fd\u6570\uff08destructor\uff09\u7684\u6ce8\u518c\u662f\u4e0e&nbsp;<code>tss_key<\/code>&nbsp;\u7ed1\u5b9a\u7684\uff0c\u800c\u4e0d\u662f\u4e0e\u67d0\u4e2a\u7279\u5b9a\u7ebf\u7a0b\u7ed1\u5b9a\u7684\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u573a\u666f<\/strong>\uff1a\u4f60\u7684\u5e93\u4f7f\u7528&nbsp;<code>tss_create<\/code>&nbsp;\u521b\u5efa\u4e86\u4e00\u4e2a\u952e&nbsp;<code>key_for_conn<\/code>\uff0c\u5e76\u6ce8\u518c\u4e86&nbsp;<code>close_connection<\/code>&nbsp;\u4f5c\u4e3a\u9500\u6bc1\u51fd\u6570\u3002<\/li>\n\n\n\n<li><strong>\u5de5\u4f5c\u6d41\u7a0b<\/strong>\uff1a\n<ol class=\"wp-block-list\">\n<li>\u7ebf\u7a0bA\u8c03\u7528&nbsp;<code>tss_set(key_for_conn, db_conn_A)<\/code>\uff0c\u5c06\u5b83\u7684\u6570\u636e\u5e93\u8fde\u63a5\u4e0e\u8be5\u952e\u7ed1\u5b9a\u3002<\/li>\n\n\n\n<li>\u7ebf\u7a0bB\u8c03\u7528&nbsp;<code>tss_set(key_for_conn, db_conn_B)<\/code>\uff0c\u5c06\u5b83\u7684\u6570\u636e\u5e93\u8fde\u63a5\u4e0e<strong>\u540c\u4e00\u4e2a\u952e<\/strong>\u7ed1\u5b9a\u3002<\/li>\n\n\n\n<li>\u5f53\u7ebf\u7a0bA\u7ed3\u675f\u65f6\uff0c\u7cfb\u7edf\u81ea\u52a8\u68c0\u67e5\u5b83\u662f\u5426\u4e3a&nbsp;<code>key_for_conn<\/code>&nbsp;\u8bbe\u7f6e\u4e86\u503c\u3002\u5982\u679c\u6709\uff0c\u5c31\u8c03\u7528&nbsp;<code>close_connection(db_conn_A)<\/code>\u3002<\/li>\n\n\n\n<li>\u5f53\u7ebf\u7a0bB\u7ed3\u675f\u65f6\uff0c\u7cfb\u7edf\u540c\u6837\u68c0\u67e5\u5e76\u8c03\u7528&nbsp;<code>close_connection(db_conn_B)<\/code>\u3002<\/li>\n<\/ol>\n<\/li>\n<\/ul>\n\n\n\n<p><strong>\u5982\u679c\u6bcf\u4e2a\u7ebf\u7a0b\u6709\u81ea\u5df1\u7684\u952e\uff0c\u90a3\u4e48\u6ce8\u518c\u9500\u6bc1\u51fd\u6570\u5c06\u53d8\u5f97\u6781\u5176\u590d\u6742\u751a\u81f3\u4e0d\u53ef\u80fd<\/strong>\uff0c\u56e0\u4e3a\u4f60\u65e0\u6cd5\u5728\u521b\u5efa\u952e\u7684\u65f6\u5019\u9884\u77e5\u672a\u6765\u6240\u6709\u7ebf\u7a0b\u7684\u884c\u4e3a\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. \u4e0e&nbsp;<code>thread_local<\/code>&nbsp;\u7684\u5bf9\u6bd4<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u7279\u6027<\/th><th class=\"has-text-align-left\" data-align=\"left\"><code>tss_t<\/code>&nbsp;\/&nbsp;<code>tss_key<\/code>&nbsp;(\u52a8\u6001TSS)<\/th><th class=\"has-text-align-left\" data-align=\"left\"><code>thread_local<\/code>&nbsp;(\u9759\u6001TLS)<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>\u6807\u8bc6\u7b26<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\"><code>tss_key<\/code>&nbsp;\u662f\u4e00\u4e2a\u8fd0\u884c\u65f6\u7684\u3001\u52a8\u6001\u7684\u53e5\u67c4\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u53d8\u91cf\u672c\u8eab\u5728\u7f16\u8bd1\/\u94fe\u63a5\u65f6\u5c31\u5df2\u7ecf\u786e\u5b9a\u3002<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>\u7075\u6d3b\u6027<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\"><strong>\u6781\u9ad8<\/strong>\u3002\u53ef\u4ee5\u5728\u8fd0\u884c\u65f6\u51b3\u5b9a\u9700\u8981\u591a\u5c11\u79cd\u7ebf\u7a0b\u5c40\u90e8\u6570\u636e\uff0c\u5e76\u52a8\u6001\u521b\u5efa\u548c\u9500\u6bc1\u3002\u975e\u5e38\u9002\u5408\u5e93\u7684\u5f00\u53d1\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\"><strong>\u8f83\u4f4e<\/strong>\u3002\u9700\u8981\u5728\u7f16\u7801\u65f6\u5c31\u58f0\u660e\u597d\u6240\u6709\u7ebf\u7a0b\u5c40\u90e8\u53d8\u91cf\u3002<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>\u8d44\u6e90\u7ba1\u7406<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\"><strong>\u5f3a\u5927<\/strong>\u3002\u652f\u6301\u4e3a\u6bcf\u79cd\u6570\u636e\u7c7b\u578b\u6ce8\u518c\u9500\u6bc1\u51fd\u6570\uff0c\u81ea\u52a8\u6e05\u7406\u8d44\u6e90\uff08\u5982\u5173\u95ed\u6587\u4ef6\u3001\u91ca\u653e\u5185\u5b58\uff09\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\"><strong>\u8584\u5f31<\/strong>\u3002\u4e0d\u652f\u6301\u81ea\u52a8\u9500\u6bc1\u51fd\u6570\u3002\u5982\u679c\u53d8\u91cf\u662f\u6307\u9488\uff0c\u9700\u8981\u624b\u52a8\u7ba1\u7406\u5185\u5b58\uff0c\u5bb9\u6613\u6cc4\u6f0f\u3002<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>\u4f7f\u7528\u573a\u666f<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5b9e\u73b0\u5e93\u3001\u7ba1\u7406\u52a8\u6001\u8d44\u6e90\u3001\u9700\u8981\u7cbe\u7ec6\u63a7\u5236\u751f\u547d\u5468\u671f\u7684\u573a\u666f\u3002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5e94\u7528\u5c42\u7f16\u7a0b\u3001\u5df2\u77e5\u4e14\u56fa\u5b9a\u7684\u7ebf\u7a0b\u5c40\u90e8\u6570\u636e\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u603b\u7ed3<\/h3>\n\n\n\n<p>\u5c06&nbsp;<code>tss_key<\/code>&nbsp;\u8bbe\u8ba1\u4e3a\u53ef\u88ab\u591a\u4e2a\u7ebf\u7a0b\u5171\u4eab\uff0c\u662f\u4e3a\u4e86\u5b9e\u73b0\u4e00\u4e2a<strong>\u7edf\u4e00\u3001\u9ad8\u6548\u3001\u53ef\u7ba1\u7406\u7684\u7ebf\u7a0b\u7279\u5b9a\u6570\u636e\u6ce8\u518c\u548c\u8bbf\u95ee\u7cfb\u7edf<\/strong>\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><code>tss_key<\/code><\/strong>&nbsp;\u662f<strong>\u6570\u636e\u7c7b\u578b\u7684\u5168\u5c40\u6807\u8bc6\u7b26<\/strong>\u3002<\/li>\n\n\n\n<li><strong>\u7cfb\u7edf\u5185\u90e8<\/strong>&nbsp;\u4e3a\u6bcf\u4e2a\u7ebf\u7a0b\u7ef4\u62a4\u4e86\u4e00\u4e2a\u4e0e\u8fd9\u4e9b\u952e\u5bf9\u5e94\u7684<strong>\u503c\u6570\u7ec4<\/strong>\u3002<\/li>\n\n\n\n<li><strong>\u7ec4\u5408\u8d77\u6765<\/strong>\uff0c<code>(\u7ebf\u7a0b, tss_key)<\/code>&nbsp;\u8fd9\u4e2a\u552f\u4e00\u7684\u7ec4\u5408\u624d\u6700\u7ec8\u5b9a\u4f4d\u5230\u4e00\u4e2a\u5177\u4f53\u7684\u6570\u636e\u5b58\u50a8\u5355\u5143\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u79cd\u8bbe\u8ba1\u4f7f\u5f97\u7f16\u5199\u9700\u8981\u7ef4\u62a4\u7ebf\u7a0b\u4e0a\u4e0b\u6587\u7684\u5e93\u53d8\u5f97\u5f02\u5e38\u7b80\u6d01\u548c\u5b89\u5168\uff0c\u662f\u591a\u7ebf\u7a0b\u5e93\u5f00\u53d1\u4e2d\u7684\u57fa\u77f3\u4e4b\u4e00\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>tss_t tss_key\uff0c\u4e3a\u4ec0\u4e48\u4e0d\u540c\u7684\u7ebf\u7a0b\uff0c\u4f7f\u7528\u540c\u4e00\u4e2atss_key\uff0c\u5f97\u5230\u7684\u662f\u4e0d\u540c\u7684\u5b58\u50a8\uff1f \u8fd9\u662f\u4e00\u4e2a\u975e\u5e38\u597d\u7684 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[13,5],"tags":[],"class_list":["post-728","post","type-post","status-publish","format-standard","hentry","category-c","category-5"],"_links":{"self":[{"href":"https:\/\/niuguodong.com\/index.php\/wp-json\/wp\/v2\/posts\/728","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/niuguodong.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/niuguodong.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/niuguodong.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/niuguodong.com\/index.php\/wp-json\/wp\/v2\/comments?post=728"}],"version-history":[{"count":0,"href":"https:\/\/niuguodong.com\/index.php\/wp-json\/wp\/v2\/posts\/728\/revisions"}],"wp:attachment":[{"href":"https:\/\/niuguodong.com\/index.php\/wp-json\/wp\/v2\/media?parent=728"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/niuguodong.com\/index.php\/wp-json\/wp\/v2\/categories?post=728"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/niuguodong.com\/index.php\/wp-json\/wp\/v2\/tags?post=728"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}