{"id":1827,"date":"2024-10-25T21:28:43","date_gmt":"2024-10-25T13:28:43","guid":{"rendered":"http:\/\/114.55.108.251\/?p=1827"},"modified":"2025-03-04T09:44:36","modified_gmt":"2025-03-04T01:44:36","slug":"linux%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b-part5-libevent","status":"publish","type":"post","link":"https:\/\/guapicoding.com\/?p=1827","title":{"rendered":"Linux\u7f51\u7edc\u7f16\u7a0b Part5 libevent"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u6982\u8ff0<\/h2>\n\n\n\n<p><strong>\u4f18\u70b9<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5f00\u6e90<\/li>\n\n\n\n<li>\u7cbe\u7b80<\/li>\n\n\n\n<li>\u652f\u6301\u8de8\u5e73\u53f0<\/li>\n\n\n\n<li>\u4e13\u6ce8\u4e8e\u7f51\u7edc\u901a\u4fe1<\/li>\n<\/ul>\n\n\n\n<p><strong>\u6e90\u7801\u5305\u5b89\u88c5\u6b65\u9aa4<\/strong>\uff1a\u53ef\u53c2\u8003\u5177\u4f53README\u6587\u4ef6<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><code>.\/configure<\/code>\u68c0\u67e5\u5b89\u88c5\u73af\u5883\uff0c\u751f\u6210makefile<\/li>\n\n\n\n<li><code>make<\/code>\u751f\u6210.o\u548c\u53ef\u6267\u884c\u6587\u4ef6<\/li>\n\n\n\n<li><code>sudo make install<\/code> \u5c06\u5fc5\u8981\u7684\u8d44\u6e90\u62f7\u8d1d\u81f3\u7cfb\u7edf\u6307\u5b9a\u76ee\u5f55 <\/li>\n\n\n\n<li>\u8fdb\u5165sample\u76ee\u5f55\uff0c\u8fd0\u884cdemo\u9a8c\u8bc1\u662f\u5426\u5b89\u88c5\u6210\u529f <\/li>\n\n\n\n<li>\u7f16\u8bd1\u4f7f\u7528\u5e93\u7684.c\u65f6\uff0c\u9700\u8981\u52a0<code><strong>-levent<\/strong><\/code>\u9009\u9879 <\/li>\n\n\n\n<li>\u5e93\u540dlibevent.so\u7684\u8def\u5f84\u53ef\u4ee5\u5728\/usr\/local\/lib\u67e5\u770b<\/li>\n<\/ol>\n\n\n\n<p><strong>\u7279\u6027<\/strong>\uff1a\u57fa\u4e8e\u201c\u4e8b\u4ef6\u201d\u5f02\u6b65\u901a\u4fe1\u6a21\u578b \u2192 \u56de\u8c03<br><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">libevent\u6846\u67b6<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u6846\u67b6<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u521b\u5efaevent_base(\u5730\u57fa) \n<ul class=\"wp-block-list\">\n<li><code>struct event_base *event_base_new(void);<\/code>\n<ul class=\"wp-block-list\">\n<li><code>struct event_base *base = event_base_new();<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u521b\u5efa\u4e8b\u4ef6evnet\n<ul class=\"wp-block-list\">\n<li>event \u2192 <code>event_new(); <\/code><\/li>\n\n\n\n<li>bufferevent \u2192 <code>bufferevent_socket_new();<\/code><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u5c06\u4e8b\u4ef6\u6dfb\u52a0\u5230event_base\u4e0a\uff1a<code>int event_add(struct event *ev, const struct timeval *tv);<\/code><\/li>\n\n\n\n<li>\u5faa\u73af\u76d1\u542c\u4e8b\u4ef6\u6ee1\u8db3\n<ul class=\"wp-block-list\">\n<li><code>int event_base_dispatch(struct event_base *base);<\/code>\n<ul class=\"wp-block-list\">\n<li><code>event_base_dispatch(base);<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u91ca\u653eevent_base\uff1a<code>event_base event_base_free(base);<\/code><\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">\u5176\u4ed6\u51fd\u6570\u4e86\u89e3<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u67e5\u770b\u652f\u6301\u54ea\u4e9b\u591a\u8defIO(\u6bd4\u5982select\u3001poll\u3001epoll)\n<ul class=\"wp-block-list\">\n<li><code>const char **event_get_supported_methods(void);<\/code><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u67e5\u770b\u5f53\u524d\u7528\u7684\u591a\u8defIO(\u4e00\u822c\u4e3aepoll)\n<ul class=\"wp-block-list\">\n<li><code>const char *event_base_get_method(const struct event_base *base);<\/code><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>fork\u540e\u4f7f\u5b50\u8fdb\u7a0b\u91cd\u65b0\u521d\u59cb\u5316event_base\uff0c\u907f\u514d\u7ee7\u627f\u7236\u8fdb\u7a0b\u7684event_base\n<ul class=\"wp-block-list\">\n<li><code>int event_reinit(struct event_base *base);<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u5e38\u89c4\u4e8b\u4ef6\uff1aevent<\/h2>\n\n\n\n<p><strong>\u5934\u6587\u4ef6<\/strong>\uff1a<code>#include&lt;event2\/event.h><\/code><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u521b\u5efa\u4e8b\u4ef6<\/h4>\n\n\n\n<p><code>struct event *event_new(struct event_base *base\uff0cevutil_socket_t fd\uff0cshort what\uff0cevent_callback_fn cb; void *arg);<\/code> \u521b\u5efa\u4e00\u4e2aevent\u4e8b\u4ef6<\/p>\n\n\n\n<p>\u53c2\u6570\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>base\uff1aevent_base_new()\u7684\u8fd4\u56de\u503c<\/li>\n\n\n\n<li>fd\uff1a\u7ed1\u5b9a\u5230bufferevent\u4e8b\u4ef6\u4e0a\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26<\/li>\n\n\n\n<li>what\uff1a\u5bf9\u5e94\u7684\u76d1\u542c\u7c7b\u578b \n<ul class=\"wp-block-list\">\n<li>EV_READ\uff1a\u4e00\u6b21\u8bfb\u4e8b\u4ef6<\/li>\n\n\n\n<li>EV_WRTIE\uff1a\u4e00\u6b21\u5199\u4e8b\u4ef6<\/li>\n\n\n\n<li>EV_PERSIST\uff1a\u6301\u7eed\u89e6\u53d1\n<ul class=\"wp-block-list\">\n<li>\u7ed3\u5408event_base_dispatch()\u4f7f\u7528<\/li>\n\n\n\n<li>\u901a\u5e38\u642d\u914d\u8bfb\u6216\u5199\n<ul class=\"wp-block-list\">\n<li>EV_PERSIST | EV_READ<\/li>\n\n\n\n<li>EV_PERSIST | EV_WRTIE<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>cb\uff1a\u4e00\u65e6\u4e8b\u4ef6\u6ee1\u8db3\u76d1\u542c\u6761\u4ef6\uff0c\u56de\u8c03\u7684\u51fd\u6570 \n<ul class=\"wp-block-list\">\n<li><code>typedef void(*event_callback_fn)(evutil_socket_t fd, short what, void *arg) <\/code>\n<ul class=\"wp-block-list\">\n<li>\u4e09\u4e2a\u53c2\u6570\u5206\u522b\u5bf9\u5e94<code>event_new()<\/code>\u7684\u7b2c\u4e8c\u3001\u4e09\u3001\u4e94\u4e2a\u53c2\u6570<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>arg\uff1a\u56de\u8c03\u51fd\u6570\u7684\u53c2\u6570 <\/li>\n<\/ul>\n\n\n\n<p>\u8fd4\u56de\u503c\uff1a\u6210\u529f\u521b\u5efa\u7684<code>struct event<\/code>\u4e8b\u4ef6\u5bf9\u8c61<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u6dfb\u52a0\u4e8b\u4ef6<\/h4>\n\n\n\n<p><code>int event_add(struct event *ev, const struct timeval *tv);<\/code> \u5c06\u4e8b\u4ef6\u6dfb\u52a0\u5230event_base\u4e0a<\/p>\n\n\n\n<p>\u53c2\u6570\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ev\uff1aevent\u5bf9\u8c61\uff0c\u5373event_new()\u7684\u8fd4\u56de\u503c<\/li>\n\n\n\n<li>tv\uff1a\u8d85\u65f6\u65f6\u95f4\n<ul class=\"wp-block-list\">\n<li>NULL\uff1a\u4e0d\u4f1a\u8d85\u65f6\uff0c\u5373\u4e00\u76f4\u7b49\u5230\u4e8b\u4ef6\u88ab\u89e6\u53d1\uff0c\u56de\u8c03\u51fd\u6570\u88ab\u8c03\u7528<\/li>\n\n\n\n<li>\u975e\u96f6\u503c\uff1a\u82e5\u7b49\u5f85\u65f6\u95f4\u5185\u4e8b\u4ef6\u6ca1\u6709\u88ab\u89e6\u53d1\uff0c\u5219\u65f6\u95f4\u4e00\u5230\u56de\u8c03\u51fd\u6570\u88ab\u8c03\u7528<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u79fb\u9664\u4e8b\u4ef6<\/h4>\n\n\n\n<p><code>int event_del(struct event *ev);<\/code> \u5c06\u4e8b\u4ef6\u4eceevent_base\u4e0a\u53d6\u4e0b(\u4e86\u89e3)<\/p>\n\n\n\n<p>\u53c2\u6570\uff1aevent\u5bf9\u8c61\uff0c\u5373event_new()\u7684\u8fd4\u56de\u503c<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u91ca\u653e\u4e8b\u4ef6<\/h4>\n\n\n\n<p>int event_free(struct event *ev); \u9500\u6bc1\u4e00\u4e2a\u4e8b\u4ef6<\/p>\n\n\n\n<p>\u53c2\u6570\uff1aevent\u5bf9\u8c61\uff0c\u5373event_new()\u7684\u8fd4\u56de\u503c<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u672a\u51b3\u548c\u975e\u672a\u51b3<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u975e\u672a\u51b3<\/strong>\uff1a\u6ca1\u6709\u8d44\u683c\u88ab\u5904\u7406(\u5373\u4f7f\u6ee1\u8db3\u5bf9\u5e94\u76d1\u542c\u4e8b\u4ef6)<\/li>\n\n\n\n<li><strong>\u672a\u51b3<\/strong>\uff1a\u6709\u8d44\u683c\u88ab\u5904\u7406\uff0c\u4f46\u5c1a\u672a\u88ab\u5904\u7406(\u56e0\u4e3a\u5bf9\u5e94\u4e8b\u4ef6\u8fd8\u672a\u88ab\u89e6\u53d1)<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/guapicoding.com\/wp-content\/uploads\/2024\/11\/\u4e8b\u4ef6\u7684\u672a\u51b3-\u975e\u672a\u51b3\u72b6\u6001\u8f6c\u6362-1024x498.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"498\" data-original=\"https:\/\/guapicoding.com\/wp-content\/uploads\/2024\/11\/\u4e8b\u4ef6\u7684\u672a\u51b3-\u975e\u672a\u51b3\u72b6\u6001\u8f6c\u6362-1024x498.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-1852\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n<\/div>\n\n\n<h4 class=\"wp-block-heading\">\u7f16\u7801\u7ec3\u4e60\uff1alibevent + fifo\u5b9e\u73b0\u8bfb\u5199<\/h4>\n\n\n\n<p><strong>read<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#include&lt;stdio.h>\n#include&lt;stdlib.h>\n#include&lt;string.h>\n#include&lt;unistd.h>\n#include&lt;event2\/event.h>\n#include&lt;errno.h>\n#include&lt;fcntl.h>\n#include&lt;sys\/stat.h>\n\nvoid sys_err(const char *str) {\n    perror(str);\n    exit(1);\n}\n\nvoid read_cb(evutil_socket_t fd, short what, void *arg) {\n    char buf&#91;BUFSIZ] = {0};\n    read(fd, buf, sizeof(buf));\n\n    printf(\"read from write : %s\\n\", buf);\n\n    sleep(1);\n\n    return ;\n}\n\nint main(int argc, char *argv&#91;]) {\n    unlink(\"test_fifo\");\n    mkfifo(\"test_fifo\", 0644); \/\/\u521b\u5efafifo\n\n    int fd = open(\"test_fifo\", O_RDONLY | O_NONBLOCK); \/\/\u6253\u5f00fifo\u7684\u8bfb\u7aef\n    if(fd == -1) sys_err(\"open error\");\n    \n    struct event_base *base = event_base_new(); \/\/\u521b\u5efaevent_base\n\n    struct event *ev = event_new(base, fd, EV_READ | EV_PERSIST, read_cb, NULL); \/\/\u521b\u5efa\u4e8b\u4ef6\n\n    event_add(ev, NULL); \/\/\u6dfb\u52a0\u4e8b\u4ef6\n\n    event_base_dispatch(base); \/\/\u5faa\u73af\u76d1\u542c\n\n    \/\/\u91ca\u653ebase\u548cevent\n    event_base_free(base);\n    event_free(ev);\n\n    return 0;\n}<\/code><\/pre>\n\n\n\n<p><strong>write<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#include&lt;stdio.h>\n#include&lt;stdlib.h>\n#include&lt;string.h>\n#include&lt;unistd.h>\n#include&lt;event2\/event.h>\n#include&lt;errno.h>\n#include&lt;fcntl.h>\n\nvoid sys_err(const char *str) {\n    perror(str);\n    exit(1);\n}\n\nvoid write_cb(evutil_socket_t fd, short what, void *arg) {\n    char buf&#91;] = \"hello libevent ~ \";\n    static int num = 0;\n    sprintf(buf, \"%d\", ++num);\n    write(fd, buf, strlen(buf) + 1);\n\n    sleep(1);\n\n    return ;\n}\n\nint main(int argc, char *argv&#91;]) {\n    int fd = open(\"test_fifo\", O_WRONLY | O_NONBLOCK); \/\/\u6253\u5f00fifo\u7684\u5199\u7aef\n    if(fd == -1) sys_err(\"open error\");\n\n    struct event_base *base = event_base_new(); \/\/\u521b\u5efaevent_base\n\n    struct event *ev = event_new(base, fd, EV_WRITE | EV_PERSIST, write_cb, NULL); \/\/\u521b\u5efa\u4e8b\u4ef6\n\n    event_add(ev, NULL); \/\/\u6dfb\u52a0\u4e8b\u4ef6\n\n    event_base_dispatch(base); \/\/\u5faa\u73af\u76d1\u542c\n\n    \/\/\u91ca\u653ebase\u548cevent\n    event_base_free(base);\n    event_free(ev);\n\n    return 0;\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u5e26\u7f13\u51b2\u533a\u7684\u4e8b\u4ef6\uff1abufferevent<\/h2>\n\n\n\n<p><strong>\u5934\u6587\u4ef6<\/strong>\uff1a<code>#include&lt;event2\/bufferevent.h><\/code><\/p>\n\n\n\n<p>\u76f8\u8f83\u5e38\u89c4event\u4e8b\u4ef6\u800c\u8a00\uff0cbufferevent\u4e13\u6ce8\u4e8esocket\u901a\u4fe1<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">bufferevent\u539f\u7406<\/h3>\n\n\n\n<p>\u4e00\u4e2abufferevent\u5bf9\u8c61\u4e2d\u6709read\/write<strong>\u4e24\u4e2a\u7f13\u51b2\u533a<\/strong>\uff0c\u501f\u52a9\u961f\u5217\u5b9e\u73b0\uff0c\u5148\u8fdb\u5148\u51fa\uff0c\u8bfb\u8d70\u6570\u636e\u5c31\u6ca1\u4e86<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8bfb\uff1a\u8bfb\u7f13\u51b2\u4e2d\u6709\u6570\u636e \u2192 \u8bfb\u56de\u8c03\u51fd\u6570\u88ab\u8c03\u7528 \u2192 \u4f7f\u7528<code>bufferevent_read()<\/code> \u2192 \u4ece\u8bfb\u7f13\u51b2\u4e2d\u8bfb\u6570\u636e<\/li>\n\n\n\n<li>\u5199\uff1a \u4f7f\u7528<code>bufferevent_write()<\/code> \u2192 \u5411\u5199\u7f13\u51b2\u4e2d\u5199\u6570\u636e \u2192 \u5f53\u5199\u7f13\u51b2\u533a\u6709\u6570\u636e\u540e\u4f1a\u81ea\u52a8\u53d1\u9001\u7ed9\u5bf9\u7aef \u2192 \u53d1\u9001\u5b8c\u6210\u540e\uff0c\u5199\u56de\u8c03\u51fd\u6570\u88ab\u8c03\u7528(\u53ea\u8d77\u5230\u901a\u77e5\u7684\u4f5c\u7528)<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/guapicoding.com\/wp-content\/uploads\/2024\/11\/bufferevent-1024x498.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"498\" data-original=\"https:\/\/guapicoding.com\/wp-content\/uploads\/2024\/11\/bufferevent-1024x498.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-1888\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\">\u76f8\u5173\u51fd\u6570<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">\u521b\u5efa\/\u9500\u6bc1bufferevent<\/h4>\n\n\n\n<p><code>struct bufferevent *bufferevent_socket_new(struct event_base *base, evutil_socket_t fd, enum bufferevent_options options);<\/code> \u521b\u5efa\u4e00\u4e2abufferevent\u4e8b\u4ef6\u5bf9\u8c61\uff0c\u7c7b\u6bd4<code>event_new()<\/code><\/p>\n\n\n\n<p>\u53c2\u6570\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>base\uff1aevent_base_new()\u7684\u8fd4\u56de\u503c<\/li>\n\n\n\n<li>fd\uff1a\u7ed1\u5b9a\u5230bufferevent\u4e8b\u4ef6\u4e0a\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26<\/li>\n\n\n\n<li>options\uff1aBEV_OPT_CLOSE_ON_FREE<\/li>\n<\/ul>\n\n\n\n<p>\u8fd4\u56de\u503c\uff1a\u6210\u529f\u521b\u5efa\u7684bufferevent\u4e8b\u4ef6\u5bf9\u8c61<\/p>\n\n\n\n<p><code>void bufferevent_socket_free(struct bufferevent *ev);<\/code> \u91ca\u653e\u4e00\u4e2abufferevent\u4e8b\u4ef6\u5bf9\u8c61<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u7ed9bufferevent\u8bbe\u7f6e\u56de\u8c03<\/h4>\n\n\n\n<p>\u5bf9\u6bd4event\uff1a<code>event_new(fd, callback\u51fd\u6570, ~)<\/code> \u2192 <code>event_add()<\/code> \u2192 \u6302\u5230event_base\u4e0a<\/p>\n\n\n\n<p>\u800cbufferevent\u5728new\u7684\u65f6\u5019\u5e76\u6ca1\u6709\u8bbe\u7f6e\u56de\u8c03\u51fd\u6570\uff0c\u9700\u8981\u53e6\u5916\u4f7f\u7528\u51fd\u6570<code>bufferevent_setcb()<\/code>\u8bbe\u7f6e\u56de\u8c03\u51fd\u6570<\/p>\n\n\n\n<p><code>void bufferevent_setcb(struct bufferevent * bufev, bufferevent_data_cb readcb, bufferevent_data_cb writecb, bufferevent_event_cb eventcb, void *cbarg);<\/code><\/p>\n\n\n\n<p>\u53c2\u6570\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>bufev\uff1a<code>bufferevent_socket_new()<\/code>\u8fd4\u56de\u7684bufferevent\u5bf9\u8c61<\/li>\n\n\n\n<li>readcb\uff1a\u8bbe\u7f6ebufferevent\u8bfb\u7f13\u51b2\u5bf9\u5e94\u7684\u56de\u8c03\u51fd\u6570(\u5185\u90e8\u4f7f\u7528<code>bufferevent_read()<\/code>\u8bfb\u6570\u636e)<\/li>\n\n\n\n<li>writecb\uff1a\u8bbe\u7f6ebufferevent\u5199\u7f13\u51b2\u5bf9\u5e94\u7684\u56de\u8c03\u51fd\u6570(\u53ea\u8d77\u5230\u901a\u77e5\u4f5c\u7528\uff0c\u56e0\u6b64\u53ef\u4ee5\u4f20NULL)<\/li>\n\n\n\n<li>eventcb\uff1a\u8bbe\u7f6e\u4e8b\u4ef6\u56de\u8c03\uff0c\u53ef\u4ee5\u4f20NULL<\/li>\n\n\n\n<li>cbarg\uff1a\u4e0a\u8ff0\u56de\u8c03\u51fd\u6570\u4f7f\u7528\u7684\u53c2\u6570<\/li>\n<\/ul>\n\n\n\n<p><strong>readcb\u5bf9\u5e94\u7684\u56de\u8c03\u51fd\u6570<\/strong><br><br>\u51fd\u6570\u7c7b\u578b\uff1a<code>typedef void (*bufferevent_data_cb)(struct bufferevent *bev, void*ctx);<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><code>void read_cb(struct bufferevent *bev, void *cbarg) {\n    .....\n    bufferevent_read(); \/\/\u8bfb\u6570\u636e\uff1a\u76f8\u5f53\u4e8e\u4ecebufferevent\u8f93\u5165\u7f13\u51b2\u533a\u4e2d\u79fb\u9664\u6570\u636e  \n}<\/code><\/code><\/pre>\n\n\n\n<p>bufferevent_read()\u51fd\u6570\u539f\u578b\uff1a<code>size_t bufferevent_read(struct bufferevent *bev, void *buf, size_t bufsize);<\/code><\/p>\n\n\n\n<p><strong>writecb\u5bf9\u5e94\u7684\u56de\u8c03\u51fd\u6570<\/strong><\/p>\n\n\n\n<p>\u51fd\u6570\u7c7b\u578b\uff1a\u540c\u4e0a<\/p>\n\n\n\n<p>bufferevent_write()\u51fd\u6570\u539f\u578b\uff1aint bufferevent_write(struct bufferevent *bufev, const void *data,  size_t size);<\/p>\n\n\n\n<p><strong>eventcb\u5bf9\u5e94\u7684\u56de\u8c03\u51fd\u6570<\/strong><\/p>\n\n\n\n<p>\u51fd\u6570\u7c7b\u578b\uff1a<code>typedef void (*bufferevent_event_cb)(struct bufferevent *bev,  short events, void *ctx);<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><code>void event_cb(struct bufferevent *bev, short events, void *ctx) {\n<code>    .....<\/code>}<\/code><\/code><\/pre>\n\n\n\n<p>\u53c2\u6570events\uff1a\u4e00\u822c\u4f20BEV_EVENT_CONNECTED(\u8bf7\u6c42\u7684\u8fde\u63a5\u8fc7\u7a0b\u5df2\u5b8c\u6210\uff0c\u5b9e\u73b0\u5ba2\u6237\u7aef\u65f6\u53ef\u7528)<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u7981\u7528\/\u542f\u7528\u7f13\u51b2\u533a<\/h4>\n\n\n\n<p>\u65b0\u5efa\u7684bufferevent\u5bf9\u8c61\u5199\u7f13\u51b2\u662fenable\u72b6\u6001\uff0c\u8bfb\u7f13\u51b2\u662fdisable\u72b6\u6001<\/p>\n\n\n\n<p><code>void bufferevent_enable(struct bufferevent *bufev, short events);<\/code> \u542f\u7528\u7f13\u51b2\u533a<\/p>\n\n\n\n<p>\u53c2\u6570\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>bufev\uff1a<code>bufferevent_socket_new()<\/code>\u8fd4\u56de\u7684bufferevent\u5bf9\u8c61<\/li>\n\n\n\n<li>events\uff1aEV_READ\u3001EV_WRITE\u3001EV_READ|EV_WRITE<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u5ba2\u6237\u7aef\u8fde\u63a5\u670d\u52a1\u5668<\/h4>\n\n\n\n<p><code>int bufferevent_socket_connect(struct bufferevent *bev, struct sockaddr *address, int addrlen);<\/code> \u7b49\u6548\u4e8e<code>socket()<\/code> + <code>connect()<\/code><\/p>\n\n\n\n<p>\u53c2\u6570\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>bev: bufferevent \u4e8b\u4ef6\u5bf9\u8c61\uff08\u5c01\u88c5\u4e86fd\uff09<\/li>\n\n\n\n<li>address\uff1aconnect()\u7684\u53c22<\/li>\n\n\n\n<li>len\uff1aconnect()\u7684\u53c23<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u670d\u52a1\u5668\u521b\u5efa\/\u91ca\u653e\u76d1\u542c\u5668<\/h4>\n\n\n\n<p><strong>\u5934\u6587\u4ef6<\/strong>\uff1a<code>#include&lt;event2\/listener.h><\/code><\/p>\n\n\n\n<p><strong>\u521b\u5efa\u76d1\u542c\u5668<\/strong><\/p>\n\n\n\n<p><code>struct evconnlistener *evconnlistener_new_bind(struct event_base *base, evconnlistener_cb cb, void *ptr, unsigned flags, int backlog, const struct sockaddr *sa, int socklen);<\/code> \u7b49\u6548\u4e8esocket() + bind() + listen() + accept()<\/p>\n\n\n\n<p>\u53c2\u6570\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>base\uff1aevent_base_new()\u7684\u8fd4\u56de\u503c<\/li>\n\n\n\n<li>cb\uff1a\u56de\u8c03\u51fd\u6570\uff0c\u5373\u5efa\u7acb\u8fde\u63a5\u4e4b\u540e\uff0c\u7528\u6237\u8981\u505a\u7684\u901a\u4fe1\u64cd\u4f5c<\/li>\n\n\n\n<li>ptr\uff1a\u4f20\u9012\u7ed9\u56de\u8c03\u51fd\u6570\uff0c\u4e00\u822c\u4f20event_base<\/li>\n\n\n\n<li>flags\uff1a\u53ef\u8bc6\u522b\u7684\u6807\u5fd7\uff0c\u4e00\u822c\u4f20LEV_OPT_CLOSE_ON_FREE | LEV_OPT_REUSEABLE(\u91ca\u653ebufferevent\u540c\u65f6\u5173\u95ed\u5e95\u5c42\u5957\u63a5\u5b57 | \u7aef\u53e3\u590d\u7528)<\/li>\n\n\n\n<li>backlog\uff1alisten()\u7684\u53c22\uff0c\u6307\u5b9a\u8fde\u63a5\u4e0a\u9650\uff0c\u4e00\u822c\u4f20-1\uff0c\u8868\u793a\u4f7f\u7528\u9ed8\u8ba4\u6700\u5927\u503c<\/li>\n\n\n\n<li>sa\uff1a\u670d\u52a1\u5668\u5730\u5740\u7ed3\u6784<\/li>\n\n\n\n<li>socklen\uff1a\u670d\u52a1\u5668\u5730\u5740\u7ed3\u6784\u5927\u5c0f <\/li>\n<\/ul>\n\n\n\n<p>\u8fd4\u56de\u503c\uff1a\u6210\u529f\u521b\u5efa\u7684\u76d1\u542c\u5668<\/p>\n\n\n\n<p><strong>\u76d1\u542c\u5668\u56de\u8c03\u51fd\u6570<\/strong><\/p>\n\n\n\n<p><code>typedef void(evconnlistener_cb)(struct evconnlistener *listener, evutil _socket_t sock, struct sockaddr *addr, *int len, void *ptr);<\/code><\/p>\n\n\n\n<p>\u53c2\u6570\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>listener\uff1a<code>evconnlistener_new_bind<\/code>()\u8fd4\u56de\u503c<\/li>\n\n\n\n<li>sock\uff1a\u7528\u4e8e<strong>\u901a\u4fe1<\/strong>\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26<\/li>\n\n\n\n<li>addr\uff1a\u5ba2\u6237\u7aef\u5730\u5740\u7ed3\u6784<\/li>\n\n\n\n<li>len\uff1a\u5ba2\u6237\u7aef\u5730\u5740\u7ed3\u6784\u5927\u5c0f<\/li>\n\n\n\n<li>ptr\uff1a<code>evconnlistener_new_bind()<\/code>\u53c23\u4f20\u9012\u8fdb\u6765\u7684ptr\uff0c\u4e00\u822c\u662fevent_base<\/li>\n<\/ul>\n\n\n\n<p>ps\uff1a\u8be5\u56de\u8c03\u51fd\u6570\u7531\u6846\u67b6\u81ea\u52a8\u8c03\u7528\uff0c\u4e0d\u7528\u6211\u4eec\u624b\u52a8\u8c03\u7528\uff0c\u56e0\u6b64\u53ea\u9700\u8981\u77e5\u9053\u53c2\u6570\u542b\u4e49\u5373\u53ef<\/p>\n\n\n\n<p><strong>\u91ca\u653e\u76d1\u542c\u5668<\/strong><\/p>\n\n\n\n<p><code>void evconnlistener_free(struct evconnlistener *lev);<\/code><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">libevent\u5b9e\u73b0TCP\u8fde\u63a5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">\u670d\u52a1\u5668<\/h4>\n\n\n\n<p><strong>\u601d\u8def\uff1a<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u4f7f\u7528<code>event_base_new()<\/code>\u521b\u5efaevent_base<\/li>\n\n\n\n<li>\u4f7f\u7528<code>evconnlistener_new_bind()<\/code>\u521b\u5efa\u76d1\u542c\u5668\uff0c\u5728\u5176\u56de\u8c03\u51fd\u6570<code>listner_cb()<\/code>\u4e2d\uff0c\u5904\u7406\u63a5\u53d7\u8fde\u63a5\u540e\u7684\u64cd\u4f5c<\/li>\n\n\n\n<li>\u76d1\u542c\u5668\u7684\u56de\u8c03\u51fd\u6570\u88ab\u8c03\u7528\uff0c\u8bf4\u660e\u6709\u4e00\u4e2a\u5ba2\u6237\u7aef\u8fde\u63a5\u4e0a\u6765\uff0c\u4f1a\u5f97\u5230\u4e00\u4e2acfd\uff0c\u7528\u4e0e\u8ddf\u5ba2\u6237\u7aef\u8fdb\u884c\u901a\u4fe1<\/li>\n\n\n\n<li>\u5728\u76d1\u542c\u5668\u7684\u56de\u8c03\u51fd\u6570\u4e2d:\n<ul class=\"wp-block-list\">\n<li>\u4f7f\u7528<code>bufferevent_socket_new()<\/code>\u521b\u5efa\u4e00\u4e2abufferevent\u4e8b\u4ef6\u5bf9\u8c61\uff0c\u5c06cfd\u5c01\u88c5\u5230\u8be5\u4e8b\u4ef6\u5bf9\u8c61\u4e2d <\/li>\n\n\n\n<li>\u4f7f\u7528<code>bufferevent_setcb()<\/code>\u51fd\u6570\u7ed9\u8be5bufferevent\u5bf9\u8c61\u7684read\u3001write\u3001event\u8bbe\u7f6e\u56de\u8c03\u51fd\u6570<\/li>\n\n\n\n<li>\u8bbe\u7f6e\u8be5bufferevent\u5bf9\u8c61\u7684\u8bfb\u7f13\u51b2\u3001\u5199\u7f13\u51b2\u7684\u4f7f\u80fd\u72b6\u6001\uff1aenable\/disable<\/li>\n\n\n\n<li>\u5f53\u76d1\u542c\u7684\u4e8b\u4ef6\u6ee1\u8db3\u65f6\uff0c\u5bf9\u5e94\u56de\u8c03\u51fd\u6570\u4f1a\u88ab\u8c03\u7528\uff0c\u63a5\u53d7\/\u53d1\u9001\u6570\u636e\uff1a<code>bufferevent_read()<\/code>\/<code>bufferevent_write()<\/code><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u4f7f\u7528<code>event_base_dispath()<\/code>\u542f\u52a8\u5faa\u73af\u76d1\u542c<\/li>\n\n\n\n<li>\u91ca\u653e\u8d44\u6e90<\/li>\n<\/ol>\n\n\n\n<p>ps\uff1a\u76d1\u542c\u5668\u53ea\u7528\u4e8e\u76d1\u542c\u8fde\u63a5\u8bf7\u6c42\uff0cbufferevent\u76d1\u542cread\u3001write\u3001event\u8bf7\u6c42<\/p>\n\n\n\n<p><strong>\u4ee3\u7801\uff1a<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;stdio.h>\n#include &lt;unistd.h>\n#include &lt;stdlib.h>\n#include &lt;sys\/types.h>\n#include &lt;sys\/stat.h>\n#include &lt;string.h>\n#include &lt;event2\/event.h>\n#include &lt;event2\/listener.h>\n#include &lt;event2\/bufferevent.h>\n\n\/\/ \u8bfb\u7f13\u51b2\u533a\u56de\u8c03\nvoid read_cb(struct bufferevent *bev, void *arg) {\n    char buf&#91;1024] = {0};   \n    bufferevent_read(bev, buf, sizeof(buf));\n    printf(\"client say: %s\\n\", buf);\n\n    char *p = \"\u6211\u662f\u670d\u52a1\u5668, \u5df2\u7ecf\u6210\u529f\u6536\u5230\u4f60\u53d1\u9001\u7684\u6570\u636e!\";\n    \/\/ \u53d1\u6570\u636e\u7ed9\u5ba2\u6237\u7aef\n    bufferevent_write(bev, p, strlen(p)+1);\n    sleep(1);\n}\n\n\/\/ \u5199\u7f13\u51b2\u533a\u56de\u8c03\nvoid write_cb(struct bufferevent *bev, void *arg) {\n    printf(\"I'm\u670d\u52a1\u5668, \u6210\u529f\u5199\u6570\u636e\u7ed9\u5ba2\u6237\u7aef,\u5199\u7f13\u51b2\u533a\u56de\u8c03\u51fd\u6570\u88ab\u56de\u8c03...\\n\"); \n}\n\n\/\/ \u4e8b\u4ef6\nvoid event_cb(struct bufferevent *bev, short events, void *arg) {\n    if(events &amp; BEV_EVENT_EOF) {\n        printf(\"connection closed\\n\");  \n    } else if(events &amp; BEV_EVENT_ERROR) {\n        printf(\"some other error\\n\");\n    }\n    \n    bufferevent_free(bev);    \n    printf(\"buffevent \u8d44\u6e90\u5df2\u7ecf\u88ab\u91ca\u653e...\\n\"); \n}\n \nvoid cb_listener(struct evconnlistener *listener, evutil_socket_t fd, struct sockaddr *addr, int len, void *ptr) {\n   printf(\"connect new client\\n\");\n\n   struct event_base* base = (struct event_base*)ptr;\n   \/\/ \u901a\u4fe1\u64cd\u4f5c\n   \/\/ \u6dfb\u52a0\u65b0\u4e8b\u4ef6\n   struct bufferevent *bev;\n   bev = bufferevent_socket_new(base, fd, BEV_OPT_CLOSE_ON_FREE);\n\n   \/\/ \u7ed9bufferevent\u7f13\u51b2\u533a\u8bbe\u7f6e\u56de\u8c03\n   bufferevent_setcb(bev, read_cb, write_cb, event_cb, NULL);\n   bufferevent_enable(bev, EV_READ);\n}\n\nint main(int argc, const char* argv&#91;]) {\n\n    \/\/ init server \n    struct sockaddr_in serv;\n\n    memset(&amp;serv, 0, sizeof(serv));\n    serv.sin_family = AF_INET;\n    serv.sin_port = htons(9876);\n    serv.sin_addr.s_addr = htonl(INADDR_ANY);\n\n    struct event_base* base;\n    base = event_base_new();\n    \/\/ \u521b\u5efa\u5957\u63a5\u5b57\n    \/\/ \u7ed1\u5b9a\n    \/\/ \u63a5\u6536\u8fde\u63a5\u8bf7\u6c42\n    struct evconnlistener* listener;\n    listener = evconnlistener_new_bind(base, cb_listener, base, \n                                  LEV_OPT_CLOSE_ON_FREE | LEV_OPT_REUSEABLE, \n                                  36, (struct sockaddr*)&amp;serv, sizeof(serv));\n\n    event_base_dispatch(base);\n\n    evconnlistener_free(listener);\n    event_base_free(base);\n\n    return 0;\n}<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\u5ba2\u6237\u7aef<\/h4>\n\n\n\n<p><strong>\u601d\u8def\uff1a<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u4f7f\u7528<code>event_base_new()<\/code>\u521b\u5efaevent_base<\/li>\n\n\n\n<li>\u4f7f\u7528<code>bufferevent_socket_new()<\/code>\u521b\u5efa\u4e00\u4e2a\u7528\u4e8e\u8ddf\u670d\u52a1\u5668\u901a\u4fe1\u7684bufferevent\u4e8b\u4ef6\u5bf9\u8c61<\/li>\n\n\n\n<li>\u4f7f\u7528<code>bufferevent_socket_connect()<\/code>\u8fde\u63a5\u670d\u52a1\u5668<\/li>\n\n\n\n<li>\u4f7f\u7528<code>bufferevent_setcb()<\/code>\u51fd\u6570\u7ed9\u8be5bufferevent\u5bf9\u8c61\u7684read\u3001write\u3001event\u8bbe\u7f6e\u56de\u8c03\u51fd\u6570<\/li>\n\n\n\n<li>\u8bbe\u7f6e\u8be5bufferevent\u5bf9\u8c61\u7684\u8bfb\u7f13\u51b2\u3001\u5199\u7f13\u51b2\u7684\u4f7f\u80fd\u72b6\u6001\uff1aenable\/disable<\/li>\n\n\n\n<li>\u63a5\u53d7\/\u53d1\u9001\u6570\u636e\uff1a<code>bufferevent_read()<\/code>\/<code>bufferevent_write()<\/code><\/li>\n\n\n\n<li>\u4f7f\u7528<code>event_base_dispath()<\/code>\u542f\u52a8\u5faa\u73af\u76d1\u542c<\/li>\n\n\n\n<li>\u91ca\u653e\u8d44\u6e90<\/li>\n<\/ol>\n\n\n\n<p><strong>\u4ee3\u7801\uff1a<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;stdio.h>\n#include &lt;unistd.h>\n#include &lt;stdlib.h>\n#include &lt;sys\/types.h>\n#include &lt;sys\/stat.h>\n#include &lt;string.h>\n#include &lt;event2\/bufferevent.h>\n#include &lt;event2\/event.h>\n#include &lt;arpa\/inet.h>\n\nvoid read_cb(struct bufferevent *bev, void *arg) {\n    char buf&#91;1024] = {0}; \n    bufferevent_read(bev, buf, sizeof(buf));\n\n    printf(\"fwq say:%s\\n\", buf);\n\n    bufferevent_write(bev, buf, strlen(buf)+1);\n    sleep(1);\n}\n\nvoid write_cb(struct bufferevent *bev, void *arg) {\n    printf(\"----------\u6211\u662f\u5ba2\u6237\u7aef\u7684\u5199\u56de\u8c03\u51fd\u6570,\u6ca1\u5375\u7528\\n\"); \n}\n\nvoid event_cb(struct bufferevent *bev, short events, void *arg) {\n    if(events &amp; BEV_EVENT_EOF) {\n        printf(\"connection closed\\n\");  \n    } else if(events &amp; BEV_EVENT_ERROR) {\n        printf(\"some other error\\n\");\n    } else if(events &amp; BEV_EVENT_CONNECTED) {\n        printf(\"\u5df2\u7ecf\u8fde\u63a5\u670d\u52a1\u5668...\\\\(^o^)\/...\\n\");\n        return;\n    }\n    \n    \/\/ \u91ca\u653e\u8d44\u6e90\n    bufferevent_free(bev);\n}\n\n\/\/ \u5ba2\u6237\u7aef\u4e0e\u7528\u6237\u4ea4\u4e92\uff0c\u4ece\u7ec8\u7aef\u8bfb\u53d6\u6570\u636e\u5199\u7ed9\u670d\u52a1\u5668\nvoid read_terminal(evutil_socket_t fd, short what, void *arg) {\n    \/\/ \u8bfb\u6570\u636e\n    char buf&#91;1024] = {0};\n    int len = read(fd, buf, sizeof(buf));\n\n    struct bufferevent* bev = (struct bufferevent*)arg;\n    \/\/ \u53d1\u9001\u6570\u636e\n    bufferevent_write(bev, buf, len+1);\n}\n\nint main(int argc, const char* argv&#91;]) {\n    struct event_base* base = NULL;\n    base = event_base_new();\n\n    int fd = socket(AF_INET, SOCK_STREAM, 0);\n\n    \/\/ \u901a\u4fe1\u7684fd\u653e\u5230bufferevent\u4e2d\n    struct bufferevent* bev = NULL;\n    bev = bufferevent_socket_new(base, fd, BEV_OPT_CLOSE_ON_FREE);\n\n    \/\/ init server info\n    struct sockaddr_in serv;\n    memset(&amp;serv, 0, sizeof(serv));\n    serv.sin_family = AF_INET;\n    serv.sin_port = htons(9876);\n    inet_pton(AF_INET, \"127.0.0.1\", &amp;serv.sin_addr.s_addr);\n\n    \/\/ \u8fde\u63a5\u670d\u52a1\u5668\n    bufferevent_socket_connect(bev, (struct sockaddr*)&amp;serv, sizeof(serv));\n\n    \/\/ \u8bbe\u7f6e\u56de\u8c03\n    bufferevent_setcb(bev, read_cb, write_cb, event_cb, NULL);\n\n    \/\/ \u8bbe\u7f6e\u8bfb\u56de\u8c03\u751f\u6548\n\t\/\/ bufferevent_enable(bev, EV_READ);\n\n    \/\/ \u521b\u5efa\u4e8b\u4ef6\n    struct event* ev = event_new(base, STDIN_FILENO, EV_READ | EV_PERSIST,\n                                 read_terminal, bev);\n    \/\/ \u6dfb\u52a0\u4e8b\u4ef6                     \n    event_add(ev, NULL);\n\n    event_base_dispatch(base);\n\n    event_free(ev);\n    \n    event_base_free(base);\n\n    return 0;\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u8ff0 \u4f18\u70b9\uff1a \u6e90\u7801\u5305\u5b89\u88c5\u6b65\u9aa4\uff1a\u53ef\u53c2\u8003\u5177\u4f53README\u6587\u4ef6 \u7279\u6027\uff1a\u57fa\u4e8e\u201c\u4e8b\u4ef6\u201d\u5f02\u6b65\u901a\u4fe1\u6a21\u578b \u2192 \u56de\u8c03 libev [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[62,21,50],"class_list":["post-1827","post","type-post","status-publish","format-standard","hentry","category-linux","tag-libevent","tag-linux","tag-50"],"_links":{"self":[{"href":"https:\/\/guapicoding.com\/index.php?rest_route=\/wp\/v2\/posts\/1827","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/guapicoding.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/guapicoding.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/guapicoding.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/guapicoding.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1827"}],"version-history":[{"count":41,"href":"https:\/\/guapicoding.com\/index.php?rest_route=\/wp\/v2\/posts\/1827\/revisions"}],"predecessor-version":[{"id":1908,"href":"https:\/\/guapicoding.com\/index.php?rest_route=\/wp\/v2\/posts\/1827\/revisions\/1908"}],"wp:attachment":[{"href":"https:\/\/guapicoding.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1827"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/guapicoding.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1827"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/guapicoding.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1827"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}