{"id":216628,"date":"2020-11-24T00:38:28","date_gmt":"2020-11-23T16:38:28","guid":{"rendered":"http:\/\/4563.org\/?p=216628"},"modified":"2020-11-24T00:38:28","modified_gmt":"2020-11-23T16:38:28","slug":"%e5%88%86%e4%ba%ab%e4%b8%80%e4%b8%aa%e8%87%aa%e5%b7%b1%e5%81%9a%e7%9a%84%e5%9f%ba%e4%ba%8e-asyncio-%e7%9a%84%e4%ba%8b%e4%bb%b6%e7%b3%bb%e7%bb%9f%e5%ae%9e%e7%8e%b0","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=216628","title":{"rendered":"\u5206\u4eab\u4e00\u4e2a\u81ea\u5df1\u505a\u7684\u57fa\u4e8e asyncio \u7684\u4e8b\u4ef6\u7cfb\u7edf\u5b9e\u73b0"},"content":{"rendered":"<div>\n<div>\n<div>\n<h1>                  \u5206\u4eab\u4e00\u4e2a\u81ea\u5df1\u505a\u7684\u57fa\u4e8e asyncio \u7684\u4e8b\u4ef6\u7cfb\u7edf\u5b9e\u73b0               <\/h1>\n<p> <\/p>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : SaltCat <\/span>  <span><i><\/i> 2<\/span> <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<div isfirst=\"1\"> <\/p>\n<p>\u9879\u76ee\u5730\u5740: https:\/\/github.com\/GraiaProject\/BroadcastControl<\/p>\n<p><strong>\u867d\u7136\u8fd9\u4e2a\u9879\u76ee\u662f\u6211\u4e3a\u4e00\u4e2a QQ \u673a\u5668\u4eba\u6846\u67b6\u5b9e\u73b0\u7684\u4e8b\u4ef6\u7cfb\u7edf, \u4f46\u5373\u4f7f\u662f\u5355\u72ec\u4f7f\u7528\u4e5f\u662f\u6ca1\u6709\u4efb\u4f55\u95ee\u9898\u7684<\/strong><\/p>\n<h2>\u52a8\u673a<\/h2>\n<p>\u5728 pypi \u4e0a\u627e\u4e0d\u5230\u4e00\u4e2a\u7b26\u5408\u6211\u8981\u6c42\u7684\u4e8b\u4ef6\u7cfb\u7edf(<code>blinker<\/code> \u4e0d\u652f\u6301 asyncio), \u5e76\u4e14\u81ea\u5df1\u4e5f\u60f3\u501f\u9274\u4e0b <code>FastAPI<\/code> \u7684\u53c2\u6570\u83b7\u53d6\u65b9\u5f0f, \u5c31\u81ea\u5df1\u624b\u6413\u4e86\u4e00\u4e2a.<\/p>\n<h2>\u76ee\u524d\u7684\u60c5\u51b5<\/h2>\n<p>\u6682\u65f6\u6ca1\u6709\u7ed9\u8fd9\u4e2a\u9879\u76ee\u505a\u5355\u72ec\u6587\u6863\u7684\u7cbe\u529b, \u4f46\u5176\u7a33\u5b9a\u6027\u5df2\u7ecf\u5728\u4e0a\u9762\u90a3\u4e2a\u6846\u67b6\u4e2d\u5f97\u5230\u4f53\u73b0.<\/p>\n<p>\u6211\u8bbe\u8ba1\u4e86\u4e00\u4e2a Dispatcher \u7684\u8bbe\u8ba1\u7528\u4e8e\u89c4\u8303\u58f0\u660e\u7684\u53c2\u6570\u7684\u89e3\u6790, \u5355\u4e2a \/\u591a\u4e2a\u7684 Dispatcher \u90fd\u53ef\u4ee5\u4f5c\u4e3a\u53c2\u6570\u89e3\u6790\u5668\u4f7f\u7528(~~\u7a81\u53d1\u5947\u60f3\u7684\u4e00\u4e2a\u540d\u79f0~~):<\/p>\n<pre><code>class Dispatcher(BaseDispatcher):     def catch(self, interface: DispatcherInterface):         if interface.name == \"graia\" and interface.annotation is str:             return \"i'm here.\" <\/code><\/pre>\n<p>\u4ee5\u4e0a\u6240\u58f0\u660e\u7684 Dispatcher, \u53ef\u4ee5\u89e3\u6790\u8fd9\u6837\u7684 Callable \u58f0\u660e:<\/p>\n<pre><code>def test_execute_target(graia: str):     print(graia) # \u8f93\u51fa: \"i'm here\" <\/code><\/pre>\n<p>\u591a\u4e2a Dispatcher \u53ef\u4ee5\u4e0b\u843d\u5f0f\u7684\u88ab\u8c03\u7528, \u4ece\u800c\u53ef\u4ee5\u4f7f Dispatcher \u5404\u53f8\u5176\u804c.<br \/> Dispatcher \u8fd8\u8bbe\u8ba1\u4e86 mixin \u6a21\u5f0f, \u53ef\u4ee5\u5f15\u5165\u5176\u4ed6 Dispatcher \u7684\u529f\u80fd.<\/p>\n<p>\u6b64\u5916, \u4e8b\u4ef6\u662f\u8fd9\u6837\u58f0\u660e\u7684:<\/p>\n<pre><code>class TestEvent(BaseEvent):     test_field: str          class Dispatcher(BaseDispatcher):         def catch(self, interface):             if interface.name == \"test\": return interface.event.test_field <\/code><\/pre>\n<p>\u53ea\u8981\u80fd\u5b9e\u4f8b\u5316\u4e8b\u4ef6(\u8fd9\u91cc\u8bbe\u5b9e\u4f8b\u4e3a <code>event<\/code>), \u5c31\u80fd\u901a\u8fc7 <code>Broadcast.postEvent<\/code> \u65b9\u6cd5\u5e7f\u64ad\u4e8b\u4ef6:<\/p>\n<pre><code>broadcast.postEvent(event) <\/code><\/pre>\n<p>\u4e8b\u4ef6\u76d1\u542c\u9760 <code>Broadcast.receiver<\/code>:<\/p>\n<pre><code>@broadcast.receiver(TestEvent) # \u76f4\u63a5\u4f7f\u7528\u5b57\u7b26\u4e32 \"TestEvent\" \u4e5f\u662f\u5141\u8bb8\u7684, \u4f1a\u81ea\u52a8\u67e5\u627e async def receiver1(test):     print(\"\u5f53\u4e00\u4e2a TestEvent \u4e8b\u4ef6\u88ab\u5e7f\u64ad\u65f6, \u6700\u7b80\u60c5\u51b5\u4e0b, \u6211\u4f1a\u88ab\u8c03\u7528\", test)     # \u540c\u6837\u4e5f\u652f\u6301\u4e8b\u4ef6\u4f20\u9012\u963b\u65ad: raise PropagationCancelled \u5373\u53ef     # \u5f53\u8fd4\u56de RemoveMe \u8fd9\u4e2a\u7279\u6b8a\u7684 Signature \u65f6, \u53ef\u80fd\u5b58\u5728\u7684\u76d1\u542c\u5668\u5c06\u88ab\u5220\u9664. <\/code><\/pre>\n<p>BaseEvent \u7684\u5b50\u7c7b\u90fd\u9ed8\u8ba4\u7ee7\u627f pydantic \u7684 BaseModel, \u4e0d\u5141\u8bb8\u4e71\u6765.<\/p>\n<p>\u8fd9\u4e2a\u4e8b\u4ef6\u7cfb\u7edf\u4f7f\u7528 asyncio \u7684\u57fa\u672c API \u5b9e\u73b0, \u4fb5\u5165\u6027\u5c3d\u53ef\u80fd\u7684\u8fbe\u5230\u4e86\u6700\u4f4e. \u6b64\u5916, \u8fd8\u6709\u5f88\u591a\u7279\u6027, \u4f8b\u5982 <code>Decorator<\/code>(\u53c2\u6570\u88c5\u9970\u5668), <code>Interrupt<\/code>(\u4e2d\u65ad) \u7b49\u6ca1\u6709\u5728\u8fd9\u91cc\u63d0\u5230, \u6709\u5174\u8da3\u7684\u4eba\u53ef\u4ee5\u5728\u4ed3\u5e93\u7684 <code>src\/test.py<\/code> \u5904\u770b\u770b, \u6211\u4e5f\u4f7f\u7528 <code>Decorator<\/code> \u5b9e\u73b0\u4e86\u7c7b\u4f3c <code>FastAPI<\/code> \u7684 <code>Depend<\/code> \u548c <code>Middleware<\/code>, \u4f46\u67d0\u79cd\u7a0b\u5ea6\u4e0a\u66f4\u5f3a\u5927.<\/p>\n<p>\u6b64\u5916, \u4f60\u53ef\u4ee5\u5728\u8fd9\u91cc\u9605\u8bfb\u6211\u4e3a Graia Application \u5199\u7684\u6587\u6863\u4e2d\u7684\u5bf9 Broadcast Control \u7684\u4ecb\u7ecd\u548c\u57fa\u672c\u7279\u6027\u4ecb\u7ecd: https:\/\/graia-document.vercel.app\/docs\/broadcast-control\/bcc-about<\/p>\n<p>\u5e0c\u671b\u80fd\u5f97\u5230\u610f\u89c1\u548c\u652f\u6301, \u5728\u6b64\u611f\u8c22\u5927\u5bb6.<\/p>\n<p>~~\u600e\u4e48\u6ca1\u6709\u9ad8\u4eae&#8230;~~<\/p>\n<\/p><\/div>\n<div> <b>\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (<span>1<\/span>)        <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<ul>\n<li data-pid=\"4402067\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : 275761919 <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             \u53ef\u4ee5 \u5f88\u5f3a                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li>\n","protected":false},"excerpt":{"rendered":"<p>\u5206\u4eab\u4e00\u4e2a\u81ea\u5df1\u505a\u7684\u57fa\u4e8e asynci&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/216628"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=216628"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/216628\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=216628"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=216628"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=216628"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}