{"id":5494,"date":"2022-06-23T15:04:24","date_gmt":"2022-06-23T07:04:24","guid":{"rendered":"http:\/\/blog.qdac.cc\/?p=5494"},"modified":"2022-07-20T09:34:39","modified_gmt":"2022-07-20T01:34:39","slug":"%e5%bc%82%e6%ad%a5%e7%bc%96%e7%a8%8b-%e4%bd%bf%e7%94%a8-zasyncinvoker-%e8%bf%9b%e8%a1%8c%e5%bc%82%e6%ad%a5%e7%bc%96%e7%a8%8b%e6%95%99%e7%a8%8b-1","status":"publish","type":"post","link":"https:\/\/blog.qdac.cc\/?p=5494","title":{"rendered":"[\u5f02\u6b65\u7f16\u7a0b] \u4f7f\u7528 ZAsync \u8fdb\u884c\u5f02\u6b65\u7f16\u7a0b\u6559\u7a0b\u4e4b\u4e00\uff1aHello\uff0cworld"},"content":{"rendered":"\n<p>ZAsync \u662f\u7531\u5409\u6797\u7701\u5de6\u53f3\u8f6f\u4ef6\u5f00\u53d1\u6709\u9650\u516c\u53f8\u5f00\u53d1\u7684\u4e00\u5957\u5f02\u6b65\u7f16\u7a0b\u6846\u67b6\uff0c\u76ee\u6807\u662f\u7528\u6765\u7b80\u5316\u5f02\u6b65\u7f16\u7a0b\u6a21\u578b\u3002<\/p>\n\n\n\n<p>\u5728\u5f02\u6b65\u7f16\u7a0b\u65f6\uff0c\u6211\u4eec\u8981\u89e3\u51b3\u51e0\u4e2a\u95ee\u9898\uff1a<\/p>\n\n\n\n<p>1\u3001\u5f02\u6b65\u64cd\u4f5c\u7684\u751f\u547d\u5468\u671f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u5f00\u542f\u4e00\u4e2a\u5f02\u6b65\u64cd\u4f5c<\/li><li>\u5728\u540e\u53f0\u6267\u884c\u5f02\u6b65\u64cd\u4f5c<\/li><li>\u5f02\u6b65\u64cd\u4f5c\u6267\u884c\u5b8c\u6210<\/li><li>\u56de\u8c03\u901a\u77e5\u5f02\u6b65\u6267\u884c\u7ed3\u679c<\/li><li>\u5f02\u6b65\u64cd\u4f5c\u7ed3\u675f\u6e05\u7406\u91ca\u653e<\/li><\/ul>\n\n\n\n<p>2\u3001\u5f02\u6b65\u53c2\u6570\u4f20\u9012\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u53c2\u6570\u7684\u751f\u547d\u5468\u671f\u7ba1\u7406<\/li><li>\u53c2\u6570\u503c\u4fee\u6539\u95ee\u9898<\/li><\/ul>\n\n\n\n<p>3\u3001\u5f02\u6b65\u64cd\u4f5c\u6267\u884c\u63a7\u5236\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u7b49\u5f85\u5f02\u6b65\u64cd\u4f5c\u5b8c\u6210<\/li><li>\u4e2d\u6b62\u5f02\u6b65\u64cd\u4f5c\u6267\u884c<\/li><\/ul>\n\n\n\n<p>4\u3001\u591a\u6b65\u64cd\u4f5c\u63a7\u5236<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u6761\u4ef6\u6b65\u9aa4<\/li><li>\u91cd\u590d\u64cd\u4f5c<\/li><li>\u4e2d\u65ad\u64cd\u4f5c<\/li><li>\u53c2\u6570\u4f20\u9012<\/li><\/ul>\n\n\n\n<p>ZAsync \u8bd5\u56fe\u89e3\u51b3\u8fd9\u4e00\u7cfb\u5217\u95ee\u9898\uff0c\u6838\u5fc3\u662f\u4e00\u4e2a IZAsyncInvoker \u63a5\u53e3\uff0c\u5b83\u8d1f\u8d23\u89e3\u51b3\u5f02\u6b65\u64cd\u4f5c\u7684\u751f\u547d\u5468\u671f\u7684\u7ba1\u7406\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>IZAsyncInvoker = interface\n    &#91;'{88A826BA-80B2-458E-80A5-CCC5522026B1}']\n    procedure Cancel;\n    function WaitComplete(ATimeout: Cardinal; ARaiseException: Boolean): TWaitResult;\n    function RunInMainThread: IZAsyncInvoker;\n    function CancelOnTimeout: IZAsyncInvoker;\n    function TimeoutAfter(ATimeout: Cardinal): IZAsyncInvoker;\n    function SetTimout(const ATimeout: Cardinal; ACallback: TZAsyncProc; ACancelOnTimeout: Boolean): IZAsyncInvoker;\n    function Delay(AValue: Cardinal): IZAsyncInvoker;\n    function Start: IZAsyncInvoker; overload;\n    function Start(ARunInMainThread: Boolean; ADelay: Cardinal = 0): IZAsyncInvoker; overload;\n    function Async: IZAsyncInvoker;\n    function Await: IZAsyncInvoker;\n    procedure Yield;\n    function Follow(AInvokers: TArray&lt;IZAsyncInvoker>; AFollowSuccessedOnly: Boolean = true): IZAsyncInvoker;\n    function BeforeCancel(ACallback: TZAsyncProc): IZAsyncInvoker;\n    function AfterSuccessed(ACallback: TZAsyncProc): IZAsyncInvoker;\n    function AfterCanceled(ACallback: TZAsyncProc): IZAsyncInvoker;\n    function AfterError(ACallback: TZAsyncProc): IZAsyncInvoker;\n    function AfterDone(ACallback: TZAsyncProc): IZAsyncInvoker;\n    function AfterTimeout(ACallback: TZAsyncProc): IZAsyncInvoker;\n    function IsCanceled: Boolean;\n    function IsComplete: Boolean;\n    function IsInvoking: Boolean;\n    function HasError: Boolean;\n    function GetParams: TZNamedParams;\n    function GetLinked: Pointer;\n    procedure SetLinked(const AData: Pointer);\n    function GetFlags: TZAsyncInvokeFlags;\n    function HasParam(const AName: String; var AValue: TValue): Boolean;\n    function GetExceptionObject: TObject;\n    property Params: TZNamedParams read GetParams;\n    property Linked: Pointer read GetLinked write SetLinked;\n    property ExceptionObject: TObject read GetExceptionObject;\n    property Flags: TZAsyncInvokeFlags read GetFlags;\n  end;<\/code><\/pre>\n\n\n\n<p>IZAsyncInvoker \u63d0\u4f9b\u5f88\u591a\u65b9\u6cd5\u548c\u5c5e\u6027\u6765\u63a7\u5236\u5f02\u6b65\u8c03\u7528\u7684\u8fc7\u7a0b\uff0c\u5b83\u662f\u7531 TZAsync.Create \u65b9\u6cd5\u6765\u521b\u5efa\u7684\u3002<\/p>\n\n\n\n<p>\u90a3\u4e48\u5982\u4f55\u521b\u5efa\u4e00\u4e2aIZAsyncInvoker\u5bf9\u8c61\u5462\uff1f<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    class function Create(AProc: TZAsyncProc; const AParams: TZNamedParams = &#91;]): IZAsyncInvoker; overload; static;\n    class function Create(AOwner: TObject; AProc: TZAsyncProc; const AParams: TZNamedParams = &#91;])\n      : IZAsyncInvoker; overload;<\/code><\/pre>\n\n\n\n<p>\u4e0a\u9762\u4e24\u4e2a\u65b9\u6cd5\u63d0\u4f9b\u4e86\u9ed8\u8ba4\u7684\u5b9e\u73b0\uff0c\u5982\u679c\u5f53\u524d\u8c03\u7528\u8005\u662f\u4e00\u4e2a\u7ec4\u4ef6\u7684\u8bdd\uff0c\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u7ec4\u4ef6\u7684\u751f\u547d\u5468\u671f\u7ba1\u7406\u5efa\u7acb\u4e0eIZAsyncInvoker\u4e4b\u95f4\u7684\u5173\u8054\uff0c\u5728\u7ec4\u4ef6\u91ca\u653e\u524d\uff0c\u4f1a\u81ea\u52a8\u8c03\u7528 IZAsyncInvoker \u7684 Cancel \u65b9\u6cd5\u6765\u53d6\u6d88\u5f02\u6b65\u64cd\u4f5c\u3002\u53cd\u4e4b\uff0c\u5982\u679c\u5f02\u6b65\u7684\u56de\u8c03\u91cc\uff0c\u8bbf\u95ee\u4e86\u8981\u88ab\u91ca\u653e\u7684\u8d44\u6e90\uff0c\u5e94\u5728\u8d44\u6e90\u91ca\u653e\u524d\uff0c\u8c03\u7528 Cancel \u65b9\u6cd5\u6765\u53d6\u6d88\u5f02\u6b65\u8c03\u7528\u3002<\/p>\n\n\n\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>procedure TForm1.Button1Click(Sender:TObject)\nbegin\n  TZAsync.Create(Self,\n     procedure (Sender:IZAsyncInvoker)\n     begin\n       OutputDebugString('Hello,world');\n     end,&#91;]).Start;\nend;<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u542f\u52a8\u7684\u662f\u4e00\u4e2a\u5f02\u6b65\u4f5c\u4e1a\uff0c\u5b83\u5c06\u5728\u540e\u53f0\u7ebf\u7a0b\u4e2d\u8f93\u51fa Hello,word \u5b57\u7b26\u4e32\u5230 Events \u4e2d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>ZAsync \u662f\u7531\u5409\u6797\u7701\u5de6\u53f3\u8f6f\u4ef6\u5f00\u53d1\u6709\u9650 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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