{"id":1608,"date":"2018-08-12T19:11:56","date_gmt":"2018-08-12T11:11:56","guid":{"rendered":"https:\/\/damogame.cn:15443\/wordpress\/?p=1608"},"modified":"2018-08-12T19:11:56","modified_gmt":"2018-08-12T11:11:56","slug":"libuv-%e5%88%9d%e7%aa%a5","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/1608","title":{"rendered":"libuv \u521d\u7aa5"},"content":{"rendered":"<h3 class=\"entry-header\">libuv \u521d\u7aa5<\/h3>\n<div class=\"entry-content\">\n<div class=\"entry-body\">\n<p>\u8fc7\u5e74\u4e86\uff0c\u4eba\u90fd\u8d70\u5149\u4e86\uff0c\u7ed3\u679c\u4e00\u4e2a\u4eba\u6d3b\u4e5f\u5e72\u4e0d\u4e86\u3002\u6240\u4ee5\u6211\u4fbf\u60f3\u627e\u70b9\u4e1c\u897f\u73a9\u73a9\u3002<\/p>\n<p>\u4eca\u5929\u60f3\u8bd5\u4e00\u4e0b libev \u5199\u70b9\u4ee3\u7801\u3002\u539f\u672c\u5728\u6211\u90a3\u53f0 ubuntu \u673a\u5668\u4e0a\u4e00\u70b9\u95ee\u9898\u90fd\u6ca1\u6709\uff0c\u53ef\u5728 windows \u673a\u4e0a\u7528 mingw \u7f16\u8bd1\u51fa\u6765\u7684\u5e93\u4e00\u4e2a backend \u90fd\u6ca1\u6709\uff0c\u57fa\u672c\u4e0d\u53ef\u7528\u3002\u7136\u540e\u7f51\u4e0a\u5c31\u6709\u540c\u5b66\u63a8\u8350\u6211\u8bd5\u4e00\u4e0b libuv \u3002<\/p>\n<p>libuv \u662f node.js \u4f5c\u8005\u505a\u7684\u4e00\u4e2a\u5c01\u88c5\u5e93\uff0c\u5728 unix \u73af\u5883\u6574\u5408\u7684 libev \uff0c\u800c\u5728 windows \u4e0b\u7528 IOCP \u53e6\u5b9e\u73b0\u4e86\u4e00\u5957\u3002\u770b\u8d77\u6765\u633a\u6ee1\u8db3\u6211\u7684\u73a9\u513f\u7684\u9700\u6c42\u7684\u3002\u6240\u4ee5\u5c31\u8bd5\u4e86\u4e00\u4e0b\u3002<\/p>\n<\/div>\n<div id=\"more\" class=\"entry-more\">\n<p>\u8fd9\u4e1c\u897f\u6ca1\u6709\u6587\u6863\uff0c\u6682\u65f6\u6ca1\u770b\u51fa\u6765\u4f5c\u8005\u6709\u5199\u6587\u6863\u7684\u6253\u7b97\uff0c\u6050\u6015\u4ed6\u662f\u81ea\u5df1\u7528\u4e3a\u4e3b\u3002\u6211 google \u4e86\u4e00\u4e0b\uff0c\u5c31\u662f github \u4e0a\u6709<a href=\"https:\/\/github.com\/joyent\/libuv\">\u6e90\u4ee3\u7801<\/a>\uff0c.h \u6587\u4ef6\u91cc\u6709\u8fd8\u7b97\u6bd4\u8f83\u8be6\u7ec6\u7684\u6ce8\u91ca\u3002\u5f53\u7136\u6700\u4e3b\u8981\u662f\u6709\u4e9b test \u7a0b\u5e8f\uff0c\u53ef\u4ee5\u5927\u6982\u6d4f\u89c8\u5176\u8bbe\u8ba1\u601d\u8def\u3002<\/p>\n<p>\u7f16\u8bd1\u5012\u633a\u987a\u5229\uff0c\u7167\u7740 test \u5199\u70b9\u5c0f\u4e1c\u897f\u4e5f\u4e0d\u590d\u6742\u3002\u6240\u4ee5\u6211\u4e5f\u5c31\u9010\u6b65\u5f00\u59cb\u4e86\u89e3\u8fd9\u4e2a\u4e1c\u4e1c\u4e86\u3002<\/p>\n<p>\u8001\u5b9e\u8bf4\uff0c\u5bf9\u4e8e\u4e00\u4e2a\u522b\u4eba\u5199\u7684\u5e93\uff0c\u6211\u7231\u7528\u4e0d\u7231\u7528\u4e3b\u8981\u662f\u8003\u5bdf\u5176 API \u8bbe\u8ba1\u3002\u4e5f\u5c31\u662f\u8be5\u600e\u4e48\u7528\uff0c\u8bbe\u8ba1\u7684\u597d\u4e0d\u597d\uff0c\u6709\u6ca1\u6709\u5197\u4f59\u8bbe\u8ba1\u3002\u6587\u6863\u4ec0\u4e48\u7684\u5176\u5b9e\u4e0d\u592a\u6240\u8c13\uff0c\u53cd\u6b63\u6709\u4ee3\u7801\u53ef\u4ee5\u770b\u561b\u3002<\/p>\n<p>libuv \u5927\u4f53\u4e0a\u6211\u8fd8\u7b97\u6ee1\u610f\uff0c\u7528 C \u5b9e\u73b0\u53ef\u4ee5\u52a0\u5f88\u591a\u5206\u3002\u4e0d\u8fc7\u6709\u4e9b\u5c0f\u7ec6\u8282\u6211\u89c9\u5f97\u8fd8\u662f\u6709\u70b9\u5c0f\u9057\u61be\u7684\u3002(\u8fd9\u4e2a\u9057\u61be\u662f\u6307\uff0c\u5982\u679c\u6211\u81ea\u5df1\u6765\u8bbe\u8ba1\uff0c\u7edd\u5bf9\u4e0d\u4f1a\u50cf\u8fd9\u4e2a\u6837\u5b50\uff09<\/p>\n<p>\u6700\u5173\u952e\u5c31\u662f\u63a5\u53e3\u5bf9 C \u7ed3\u6784\u4f53\u5e03\u5c40\u7684\u4f9d\u8d56\u6027\u3002\u8fd9\u70b9\u6211\u66fe\u7ecf\u56e0\u4e3a hiredis windows \u7248\u7684\u7f18\u6545<a href=\"http:\/\/blog.codingnow.com\/2011\/11\/dev_note_2.html\">\u5410\u69fd\u8fc7\u4e00\u6b21<\/a>\u4e86\u3002\u4ee5\u6211\u81ea\u5df1\u7684\u7ecf\u9a8c\uff0c\u4f3c\u4e4e\u5927\u591a\u6570 Windows \u51fa\u8eab\u7684\u7a0b\u5e8f\u5458\u90fd\u6709\u4e00\u70b9\u8fd9\u79cd\u574f\u4e60\u60ef\u3002\u597d\u5427\uff0c\u6211\u4e5f\u4e0d\u77e5\u9053\u600e\u4e48\u628a\u8fd9\u70b9\u548c windows \u8054\u7cfb\u8d77\u6765\u7684\uff0c\u7eaf\u7cb9\u611f\u89c9\u800c\u5df2\u3002\u56e0\u4e3a\u6211\u81ea\u5df1\u4ee5\u524d\u505a\u8bbe\u8ba1\u4e5f\u6709\u8fd9\u4e2a\u4e60\u60ef\u3002<\/p>\n<p>\u4e3a\u4ec0\u4e48\u6211\u89c9\u5f97\u8fd9\u6837\u4e0d\u597d\uff1f<\/p>\n<p>\u56e0\u4e3a\u6211\u89c9\u5f97\u4e00\u4e2a\u5e93\uff0c\u82e5\u60f3\u88ab\u4eba\u5f53\u6210\u9ed1\u76d2\u5b50\u53bb\u4f7f\u7528\uff0c\u4ee5\u540e\u4e5f\u4f5c\u4e3a\u9ed1\u76d2\u5b50\u6765\u7ef4\u62a4\uff0c\u751a\u81f3\u53ef\u4ee5\u7528\u522b\u7684\u76d2\u5b50\u53bb\u66ff\u4ee3\u5b83\u3002\u5173\u952e\u7684\u4e00\u70b9\u5c31\u662f\u63a5\u53e3\u7b80\u5355\u3002\u8fd9\u4e2a\u7b80\u5355\u5305\u62ec\u4e86\u4f7f\u7528\u6700\u5c11\u7684\u6982\u5ff5\u3001\u9700\u8981\u6700\u5c11\u7684\u77e5\u8bc6\u53bb\u7406\u89e3\u5b83\u3002<\/p>\n<p>\u6587\u6863\u901a\u5e38\u662f\u5bf9\u63a5\u53e3\u65e0\u6cd5\u81ea\u63cf\u8ff0\u6240\u9700\u77e5\u8bc6\u7684\u4e00\u79cd\u8865\u5145\u3002\u5bf9\u4e00\u4e9b\u4f8b\u5916\u7684\u8bf4\u660e\u3002\u800c\u8fd9\u4e9b\u5f53\u7136\u662f\u8d8a\u5c11\u8d8a\u597d\u3002<\/p>\n<p>\u6211\u503e\u5411\u4e8e\u4e0d\u5728\u5bf9\u5916\u63a5\u53e3\uff08\u5bf9\u4e8e C \u5e93\u6765\u8bf4\uff0c\u5c31\u662f .h \u6587\u4ef6\uff09\u4e2d\u5b9a\u4e49\u6240\u7528\u6570\u636e\u7ed3\u6784\u7684\u5177\u4f53\u5e03\u5c40\u3002\u901a\u5e38\u53ea\u9700\u8981\u4e00\u4e2a\u540d\u5b57\u5373\u53ef\u3002\u8fd9\u4e2a\u540d\u5b57\u662f\u7528\u6765\u505a\u5f3a\u7c7b\u578b\u7ea6\u675f\u7684\u3002<\/p>\n<p>\u8fc7\u591a\u7684\u7ed3\u6784\u5b9a\u4e49\u5bfc\u81f4\u4e86\u8fc7\u591a\u7684\u6982\u5ff5\uff0c\u589e\u52a0\u4e86\u63a5\u53e3\u590d\u6742\u5ea6\u3002<\/p>\n<p>\u63a5\u53e3\u7684\u6700\u5c0f\u77e5\u8bc6\u8868\u8fbe\u5c31\u662f\u7528\u4e00\u81f4\u7684 C \u51fd\u6570\u8c03\u7528\u7ea6\u5b9a\u3002\u6709\u660e\u786e\u7684\u8f93\u5165\u53c2\u6570\u3001\u8f93\u51fa\u53c2\u6570\u3002\u5bf9\u4e8e\u63a5\u53e3\u51fd\u6570\uff0c\u5e94\u8be5\u662f\u65e0\u5168\u5c40\u76f8\u5173\u72b6\u6001\u7684\u3002\u8fd9\u4e0d\u4ec5\u4ec5\u662f\u4e3a\u4e86\u7ebf\u7a0b\u5b89\u5168\uff0c\u800c\u662f\u53ef\u4ee5\u4fdd\u8bc1\u6ca1\u6709\u9690\u5f0f\u7ea6\u5b9a\uff08\u989d\u5916\u7684\u77e5\u8bc6\uff09\u3002<\/p>\n<p>\u5982\u679c\u67d0\u4e9b\u884c\u4e3a\u9700\u8981\u7528\u6237\u8bbe\u7f6e\u6216\u8bfb\u53d6\u67d0\u4e2a\u7ed3\u6784\u4f53\u7684\u4e00\u4e2a\u7279\u5b9a\u57df\uff0c\u6211\u89c9\u5f97\u5c31\u662f\u5728 C \u51fd\u6570\u8c03\u7528\u8fd9\u4e00\u65b9\u5f0f\u5916\uff0c\u589e\u52a0\u4e86\u4e00\u79cd\u6539\u53d8\u6a21\u5757\u884c\u4e3a\u7684\u63a5\u53e3\u5f62\u5f0f\u3002\u6216\u8bb8\u8fd9\u6837\u505a\u7684\u6210\u672c\u6bd4 C \u51fd\u6570\u8c03\u7528\u8981\u6765\u7684\u4f4e\uff0c\u4f46\u6211\u4ee5\u4e3a\u5f97\u4e0d\u507f\u5931\u3002<\/p>\n<p>\u5c24\u5176\u662f\u3001\u4f60\u7684\u6a21\u5757\u5982\u679c\u76f8\u5f53\u4f9d\u8d56\u8fd9\u79cd\u5f62\u5f0f\uff1a\u76f4\u63a5\u5bf9\u7ed3\u6784\u4f53\u7684\u7279\u5b9a\u57df\u8d4b\u503c\u7684\u5f62\u5f0f\u6765\u4ea4\u6362\u4fe1\u606f\u3002\u8fd9\u79cd\u4f9d\u8d56\u53ef\u80fd\u6765\u81f3\u4e8e\u4f60\u5bf9\u6027\u80fd\u7684\u8ffd\u6c42\u3002\u90a3\u6211\u89c9\u5f97\u4e00\u822c\u90fd\u662f\u6574\u4e2a\u6a21\u5757\u7684\u9700\u6c42\u5b9a\u4e49\u51fa\u4e86\u4ec0\u4e48\u95ee\u9898\u3002\u4e00\u4e2a\u72ec\u7acb\u6a21\u5757\u9700\u8981\u89e3\u51b3\u7684\u95ee\u9898\uff0c\u901a\u5e38\u5bf9\u5916\u754c\u7684\u4fe1\u606f\u4ea4\u6362\u5e94\u8be5\u662f\u4f4e\u9891\u7684\uff0c\u5b83\u5e94\u8be5\u662f\u53ef\u4ee5\u72ec\u7acb\u5de5\u4f5c\u89e3\u51b3\u66f4\u590d\u6742\u7684\u95ee\u9898\u7684\u3002\u800c\u4e0d\u5e94\u8be5\u662f\u4e0d\u65ad\u7684\u8981\u6c42\u5916\u90e8\u544a\u77e5\u5b83\u65b0\u7684\u72b6\u6001\u53d8\u6362\u3002<\/p>\n<p>ps. \u5bf9\u4e8e\u63a5\u53e3\u4e2d\u7684\u7ed3\u6784\u4f53\u5b9a\u4e49\u95ee\u9898\u3002\u6709\u53e6\u4e00\u79cd\u60c5\u51b5\u9700\u8981\u533a\u5206\u5f00\u3002\u5c31\u662f\u6709\u5927\u91cf\u7684\u8f93\u5165\u53c2\u6570\u6216\u8f93\u51fa\u53c2\u6570\u9700\u8981\u4e00\u6b21\u6027\u4ea4\u6362\u65f6\uff0c\u53ef\u4ee5\u8003\u8651\u5b9a\u4e49\u4e00\u4e2a\u7ed3\u6784\u4f53\u6765\u505a\u3002\u8fd9\u6837\u6bd4\u5728 C \u51fd\u6570\u8c03\u7528\u524d\u538b\u4e00\u5927\u5806\u7684\u6570\u636e\u53bb\u5806\u6808\u91cc\u8981\u5e72\u51c0\u7684\u591a\u3002<\/p>\n<hr \/>\n<p>\u5199\u4e86\u8fd9\u4e48\u591a\uff0c\u6211\u662f\u60f3\u8bf4\u8bf4\u6211\u521d\u6b65\u9605\u8bfb libuv \u4ee3\u7801\u7684\u611f\u53d7\u3002\u6211\u78b0\u5230\u7684\u7b2c\u4e00\u4e2a\u95ee\u9898\u5c31\u662f\uff1alibuv \u7528\u4e86\u5927\u91cf callback \u673a\u5236\u6765\u5b8c\u6210\u5f02\u6b65 IO \u7684\u95ee\u9898\u3002\u800c\u8fd9\u4e9b callback \u51fd\u6570\u901a\u5e38\u90fd\u5e26\u6709\u4e00\u4e2a\u53c2\u6570\u00a0<code>uv_stream_t<\/code>\u00a0\u6216\u00a0<code>uv_req_t<\/code>\u00a0\u7b49\u3002\u8fd9\u4e2a\u6570\u636e\u8868\u793a\u8fd9\u6b21 callback \u7ed1\u5b9a\u7684\u6570\u636e \u3002<\/p>\n<p>\u6211\u4eec\u77e5\u9053\uff0c C \u8bed\u8a00\u662f\u6ca1\u6709\u539f\u751f closure \u652f\u6301\u7684\u3002\u82e5\u6709\u7684\u8bdd\uff0cclosure \u5e94\u662f callback \u673a\u5236\u6700\u4f73\u89e3\u51b3\u65b9\u6848\u3002\u800c C \u8bed\u8a00\u6a21\u62df closure \u7684\u65b9\u6cd5\u662f\u7528\u4e00\u4e2a C Function \u5e76\u643a\u5e26\u4e00\u4e2a void * ud \u3002\u6b64 ud \u5373\u539f\u672c\u5e94\u8be5\u5728 closure \u4e2d\u7ed1\u5b9a\u7684\u6570\u636e\u5757\u3002<\/p>\n<p>\u8fd9\u91cc\uff0clibuv \u7528\u7684\u00a0<code>uv_stream_t<\/code>\u00a0\u5927\u81f4\u4e0a\u7b49\u540c\u4e8e\u8fd9\u4e2a ud \u3002<\/p>\n<p>\u95ee\u9898\u51fa\u6765\u4e86\u3002\u7528\u6237\u5728\u7528\u8fd9\u7c7b\u5f02\u6b65 IO \u5e93\u7684\u65f6\u5019\uff0c\u6bcf\u6b21 IO \u4e8b\u4ef6\u90fd\u9700\u8981\u7ed1\u5b9a\u7684\u884c\u4e3a\u9700\u8981\u7684\u6570\u636e\u4e0d\u4ec5\u4ec5\u662f\u4e00\u4e2a stream \u3002\u8fd8\u9700\u8981\u4e00\u4e9b\u56f4\u7ed5\u8fd9\u4e2a stream \u505a\u7684\u52a8\u4f5c\u6240\u9700\u8981\u7684\u4e00\u4e9b\u5176\u5b83\u6570\u636e\u3002<\/p>\n<p>\u6211\u5728\u9605\u8bfb\u00a0<code>test\/echo-server.c<\/code>\u00a0\u65f6\u770b\u5230\u8fd9\u4e48\u4e00\u6bb5\uff1a<\/p>\n<pre>static void after_write(uv_write_t* req, int status) {\r\n  write_req_t* wr;\r\n\r\n  if (status) {\r\n    uv_err_t err = uv_last_error(loop);\r\n    fprintf(stderr, \"uv_write error: %s\\n\", uv_strerror(err));\r\n    ASSERT(0);\r\n  }\r\n\r\n  wr = (write_req_t*) req;\r\n\r\n  \/* Free the read\/write buffer and the request *\/\r\n  free(wr-&gt;buf.base);\r\n  free(wr);\r\n}\r\n<\/pre>\n<p>\u8fd9\u91cc\u7528\u4e86\u4e00\u6b21\u5f3a\u5236\u8f6c\u6362\uff0c\u628a\u00a0<code>uv_write_t<\/code>\u00a0\u8f6c\u6362\u4e3a\u00a0<code>write_req_t<\/code>\u00a0\u3002\u4e3a\u4ec0\u4e48\u53ef\u4ee5\u8fd9\u6837\u5e72\uff0c\u662f\u56e0\u4e3a\u00a0<code>write_req_t<\/code>\u00a0\u88ab\u5b9a\u4e49\u6210\uff1a<\/p>\n<pre>typedef struct {\r\n  uv_write_t req;\r\n  uv_buf_t buf;\r\n} write_req_t;\r\n<\/pre>\n<p>\u8fd9\u91cc\u6839\u636e C \u7ed3\u6784\u5e03\u5c40\uff0creq \u662f\u7b2c\u4e00\u4e2a\u57df\uff0c\u6240\u4ee5\u6392\u5728\u6700\u524d\u9762\u3002<\/p>\n<p>\u8fd9\u6837\u505a\u6709\u70b9\u6666\u6da9\uff0c\u6211\u53ea\u80fd\u8bf4\u611f\u89c9\u4e0d\u592a\u597d\u3002\u56e0\u4e3a\u5982\u679c\u7ea6\u5b9a\u4e86\u00a0<code>uv_write<\/code>\u00a0\u63a5\u53e3\u4f20\u9012\u7684\u662f\u4e00\u4e2a\u00a0<code>uv_write_t<\/code>\u00a0\u7c7b\u578b\u7684\u6570\u636e\uff0c\u8fd9\u5c31\u660e\u663e\u662f\u5229\u7528 C \u8bed\u8a00\u7279\u6027\u6765\u5939\u5e26\u79c1\u8d27\u4e86\u3002<\/p>\n<p>\u5982\u679c\u8fd9\u662f\u4f5c\u8005\u63a8\u8350\u7684\u60ef\u7528\u6cd5\u7684\u8bdd\uff0c\u6211\u5219\u8fd9\u6837\u7406\u89e3\uff1a<\/p>\n<p>libuv \u5176\u5b9e\u5728 API \u4e0a\u6709\u4e2a\u9690\u542b\u7ea6\u5b9a\u3002\u5373\u56de\u8c03\u51fd\u6570\u7684\u53c2\u6570\u6307\u5411\u7684\u5730\u5740\u504f\u79fb\u91cf\u4e3a\u67d0\u4e2a\u6570\u503c\u4ee5\u540e\u7684\u6570\u636e\u662f\u7528\u6237\u6570\u636e\u3002\u8fd9\u4e2a\u6570\u503c\u4e3a\u7c7b\u578b\u7684\u5c3a\u5bf8\u3002\u8fd9\u7c7b\u4f3c c++ \u7684\u7ee7\u627f\u3002\u6570\u636e\u7c7b\u578b\u5c3a\u5bf8\u6570\u503c\u662f\u7f16\u8bd1\u65f6\u901a\u8fc7\u7f16\u8bd1\u5668\u6765\u7ea6\u5b9a\u7684\u3002<\/p>\n<p>\u800c\u4e14\uff0c\u5355\u5c31\u73b0\u5728\u7684\u7528\u6cd5\uff0c\u6211\u8ba4\u4e3a\u66f4\u4e25\u8c28\u7684\u505a\u6cd5\u5e94\u8be5\u662f\u7c7b\u4f3c socket API \uff0c\u663e\u5f0f\u7684\u628a\u4f20\u9012\u7684\u7ed3\u6784\u5c3a\u5bf8\u5728\u51fd\u6570\u63a5\u53e3\u8868\u8fbe\u51fa\u6765\uff08\u53c2\u8003 socket connect \u7684\u63a5\u53e3\u5b9a\u4e49\u4e2d\u7684\u7b2c\u4e09\u4e2a\u53c2\u6570 addrlen\uff09\u3002 \u8fd9\u6837\u5bf9\u5e93\u7684\u63a5\u53e3\u7a33\u5b9a\u6709\u597d\u5904\u3002\u5e93\u53ef\u4ee5\u77e5\u9053\u7528\u6237\u6709\u53ef\u80fd\u6269\u5c55\u6570\u636e\uff0c\u957f\u5ea6\u4fe1\u606f\u63d0\u793a\u4e86\u5e93\uff0c\u4f20\u5165\u6570\u636e\u4f53\u7684\u771f\u5b9e\u5927\u5c0f\u3002<\/p>\n<p>btw, C++ \u5728\u7528\u7ee7\u627f\u6765\u5b8c\u6210\u7c7b\u4f3c\u8bbe\u8ba1\u65f6\uff0c\u5219\u4f9d\u9760\u4e86\u8bed\u8a00\u5bf9 cast \u7684\u7ea6\u5b9a\u3002C++ \u8bed\u8a00\u7684\u77e5\u8bc6\u6982\u5ff5\u592a\u591a\uff0c\u5f88\u96be\u5b8c\u6210\u7b80\u6d01\u7684\u6a21\u5757\u63a5\u53e3\u7ea6\u5b9a\u3002\u5728\u6211\u770b\u6765\uff0c\u8fd9\u76f4\u63a5\u5bfc\u81f4\u4e86 C++ \u5f88\u96be\u8bbe\u8ba1\u901a\u7528\u5e93\uff0c\u800c\u53ea\u80fd\u8bbe\u8ba1\u4e13\u6709\u6846\u67b6\u3002<\/p>\n<hr \/>\n<p>\u6211\u7740\u4e00\u4e9b\u7591\u60d1\u9605\u8bfb\u4e86\u4e0d\u5c11 libuv \u91cc\u7684\u5b9e\u73b0\u4ee3\u7801\uff0c\u5c24\u5176\u662f uv.h \u7684\u7ec6\u8282\u3002\u6211\u53d1\u73b0\u8fd9\u6837\u4e00\u4e2a\u7ed3\u6784\u5b9a\u4e49\u3002<\/p>\n<pre>#define UV_HANDLE_FIELDS \\\r\n  \/* read-only *\/ \\\r\n  uv_loop_t* loop; \\\r\n  uv_handle_type type; \\\r\n  \/* public *\/ \\\r\n  uv_close_cb close_cb; \\\r\n  void* data; \\\r\n  \/* private *\/ \\\r\n  UV_HANDLE_PRIVATE_FIELDS\r\n\r\n\/* The abstract base class of all handles.  *\/\r\nstruct uv_handle_s {\r\n  UV_HANDLE_FIELDS\r\n};\r\n<\/pre>\n<p>\u6ce8\u610f\u8fd9\u91cc\u6709\u4e00\u4e2a data \u57df\u3002\u4ece\u6211\u7684\u7ecf\u9a8c\u5224\u65ad\uff0c\u8fd9\u4e2a\u57df\u5e94\u8be5\u5c31\u662f\u7528\u6765\u5728\u4e00\u4e2a handle \u4e0a\u5939\u5e26\u7528\u6237\u6570\u636e\u7684\u3002\u7531\u4e8e\u6ca1\u6709\u6587\u6863\u786e\u8ba4\uff0c\u6211\u53ea\u80fd\u4ece\u6709\u9650\u7684\u4ee3\u7801\u9605\u8bfb\u4e2d\u6765\u786e\u8ba4\u6211\u7684\u5224\u65ad\u3002\u6211\u5f88\u5947\u602a\u6ca1\u6709\u5b9a\u4e49\u4e00\u4e2a\u660e\u786e\u7684 api \u51fa\u6765\u7ed1\u5b9a\u7528\u6237\u6570\u636e\u3002\u56e0\u4e3a\u5728\u5e93\u7684\u5b9e\u73b0\u4ee3\u7801\u4e2d\u4e5f\u786e\u5b9e\u5e93\u81ea\u5df1\u7528\u5230\u8fc7\u8fd9\u4e2a\u57df\uff0c\u6240\u4ee5\u4f30\u8ba1\u4e5f\u4e0d\u662f\u5e93\u7684\u4f7f\u7528\u8005\u53ef\u4ee5\u81ea\u7531\u4f7f\u7528\u7684\u3002<\/p>\n<p>\u5f53\u7136\u5bf9\u5e94\u7684\u8fd8\u6709\u51e0\u5904\u7c7b\u4f3c\u8bbe\u8ba1\uff1a<\/p>\n<pre>#define UV_REQ_FIELDS \\\r\n  \/* read-only *\/ \\\r\n  uv_req_type type; \\\r\n  \/* public *\/ \\\r\n  void* data; \\\r\n  \/* private *\/ \\\r\n  UV_REQ_PRIVATE_FIELDS\r\n\r\n\/* Abstract base class of all requests. *\/\r\nstruct uv_req_s {\r\n  UV_REQ_FIELDS\r\n};\r\n<\/pre>\n<p>\u8fd8\u6709<\/p>\n<pre>struct uv_loop_s {\r\n  UV_LOOP_PRIVATE_FIELDS\r\n  \/* list used for ares task handles *\/\r\n  uv_ares_task_t* uv_ares_handles_;\r\n  \/* Various thing for libeio. *\/\r\n  uv_async_t uv_eio_want_poll_notifier;\r\n  uv_async_t uv_eio_done_poll_notifier;\r\n  uv_idle_t uv_eio_poller;\r\n  \/* Diagnostic counters *\/\r\n  uv_counters_t counters;\r\n  \/* The last error *\/\r\n  uv_err_t last_err;\r\n  \/* User data - use this for whatever. *\/\r\n  void* data;\r\n};\r\n<\/pre>\n<p>\u8fd9\u4e2a\u00a0<code>struct uv_loop_s<\/code>\u00a0\u7684 data \u57df\u5012\u662f\u660e\u786e\u7684\u6ce8\u91ca\u53ef\u4ee5\u968f\u4fbf\u4f7f\u7528\u4e86\u3002<\/p>\n<hr \/>\n<p>\u8bdd\u8bf4\u56de\u6765\uff0c\u8fd9\u4e2a\u7ed1\u5b9a\u7528\u6237\u6570\u636e\u7684\u9700\u6c42\u6211\u5728\u65e9\u5e74\u9605\u8bfb Windows \u7684 MFC \u5b9e\u73b0\u65f6\u5012\u662f\u89c1\u8fc7\u53e6\u5916\u4e00\u79cd\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n<p>Windows \u7684\u7a97\u4f53\u6709\u4e00\u4e2a SetWindowLong \u7684 API \u53ef\u4ee5\u8ba9\u7528\u6237\u53bb\u8bbe\u7f6e\u4e00\u4e2a\u7528\u6237\u6570\u636e\u3002\u8fd9\u6837\u53ef\u4ee5\u65b9\u4fbf\u7528\u6237\u5728\u7528 C++ \u5c01\u88c5\u7684\u65f6\u5019\u628a\u4e00\u4e2a C++ \u5bf9\u8c61\u6307\u9488\u7ed1\u5b9a\u5728\u7a97\u4f53 Handle \u4e0a\u3002\u8fd9\u6837\u5728\u7a97\u53e3\u6d88\u606f\u56de\u8c03\u51fd\u6570\u4e2d\u5c31\u53ef\u4ee5\u53d6\u56de\u8fd9\u4e2a\u5bf9\u8c61\u6307\u9488\u3002<\/p>\n<p>MFC \u5c01\u88c5\u8fd9\u4e9b\u7cfb\u7edf API \u65f6\uff0c\u53ef\u80fd\u662f\u4e3a\u4e86\u66f4\u901a\u7528\uff0c\u6ca1\u6709\u5360\u7528\u8fd9\u4e2a\u5185\u7f6e\u57df\uff0c\u800c\u662f\u81ea\u5df1\u5efa\u7acb\u4e86\u4e00\u4e2a\u5168\u5c40\u7684\u6620\u5c04\u8868\u3002\u6bcf\u6b21\u7a97\u4f53\u6d88\u606f\u56de\u8c03\u65f6\uff0c\u67e5\u8868\u6765\u627e\u5230\u5bf9\u5e94\u7684\u7a97\u4f53\u5bf9\u8c61\u3002\u8fd9\u79cd\u975e\u4fb5\u5165\u5f0f\u7684\u65b9\u6848\uff0c\u4e5f\u51d1\u5408\u7528\u5427\u3002\u5c31\u662f\u5bf9\u4e8e\u7528 C\/C++ \u7f16\u5199\u4ee3\u7801\u7684\u8ffd\u6c42\u6027\u80fd\u7684\u540c\u5b66\u6765\u8bf4\uff0c\u6216\u8bb8\u6709\u4e9b\u5c0f\u5c0f\u4e0d\u723d\u3002<\/p>\n<hr \/>\n<p>\u8fd9\u5c31\u662f\u6211\u521d\u6b65\u9605\u8bfb libuv \u4ee3\u7801\u7684\u4e00\u4e9b\u7b80\u5355\u770b\u6cd5\u3002\u5f53\u7136\uff0c\u6211\u89c9\u5f97 libuv \u662f\u4e2a\u5f88\u4e0d\u9519\u7684\u4e1c\u897f\uff0c\u4e0d\u7136\u6211\u4e5f\u4e0d\u4f1a\u9976\u6709\u5174\u81f4\u7684\u73a9\u4e86\u4e00\u665a\u4e0a\u3002\u53ea\u662f\u7531\u4e8e\u5728\u8fd9\u5757\u6295\u5165\u65f6\u95f4\u7cbe\u529b\u4e0d\u591a\uff0c\u9519\u8bef\u96be\u514d\u3002\u6709\u884c\u5bb6\u770b\u5230\uff0c\u4e00\u7b11\u4e86\u4e4b\u5427\u3002<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>libuv \u521d\u7aa5 \u8fc7\u5e74\u4e86\uff0c\u4eba\u90fd\u8d70\u5149\u4e86\uff0c\u7ed3<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":""},"categories":[],"tags":[118],"class_list":["post-1608","post","type-post","status-publish","format-standard","hentry","tag-02-"],"_links":{"self":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/1608","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/comments?post=1608"}],"version-history":[{"count":0,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/1608\/revisions"}],"wp:attachment":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/media?parent=1608"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/categories?post=1608"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/tags?post=1608"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}