{"id":73540,"date":"2026-02-07T20:33:22","date_gmt":"2026-02-07T12:33:22","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/73540.html"},"modified":"2026-02-07T20:33:22","modified_gmt":"2026-02-07T12:33:22","slug":"android-15-servicemanager%e4%b8%8ebinder%e6%9c%8d%e5%8a%a1%e6%b3%a8%e5%86%8c%e6%b7%b1%e5%ba%a6%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/73540.html","title":{"rendered":"Android 15 ServiceManager\u4e0eBinder\u670d\u52a1\u6ce8\u518c\u6df1\u5ea6\u89e3\u6790"},"content":{"rendered":"<h3>\u5f15\u8a00<\/h3>\n<p>\u5728\u4e0a\u4e00\u7bc7\u6587\u7ae0\u4e2d,\u6211\u4eec\u6df1\u5165\u5206\u6790\u4e86Binder\u9a71\u52a8\u7684\u5185\u6838\u673a\u5236\u3002\u4f46\u662f\u6709\u4e00\u4e2a\u6838\u5fc3\u95ee\u9898\u8fd8\u6ca1\u6709\u56de\u7b54:Client\u5982\u4f55\u77e5\u9053Server\u7684Binder\u53e5\u67c4?<\/p>\n<p>\u60f3\u8c61\u4e00\u4e0b,\u4f60\u60f3\u6253\u7535\u8bdd\u7ed9\u670b\u53cb,\u4f46\u4f60\u4e0d\u77e5\u9053\u4ed6\u7684\u7535\u8bdd\u53f7\u7801\u3002\u8fd9\u65f6\u4f60\u9700\u8981\u67e5\u7535\u8bdd\u7c3f(Yellow Pages)\u3002\u5728Android\u7cfb\u7edf\u4e2d,ServiceManager\u5c31\u662f\u8fd9\u672c\\&#8221;\u7535\u8bdd\u7c3f\\&#8221;\u2014\u2014\u5b83\u7ef4\u62a4\u4e86\u7cfb\u7edf\u4e2d\u6240\u6709\u670d\u52a1\u7684\u6ce8\u518c\u8868,\u63d0\u4f9b\u670d\u52a1\u7684\u6ce8\u518c\u548c\u67e5\u8be2\u529f\u80fd\u3002<\/p>\n<p>\u6ca1\u6709ServiceManager,Binder IPC\u5c31\u65e0\u6cd5\u5de5\u4f5c\u3002\u6240\u6709\u7684\u7cfb\u7edf\u670d\u52a1(\u5982ActivityManagerService\u3001WindowManagerService)\u90fd\u9700\u8981\u5148\u5411ServiceManager\u6ce8\u518c,\u5ba2\u6237\u7aef\u624d\u80fd\u901a\u8fc7ServiceManager\u67e5\u8be2\u5230\u5b83\u4eec\u7684Binder\u53e5\u67c4,\u8fdb\u800c\u8fdb\u884c\u8de8\u8fdb\u7a0b\u8c03\u7528\u3002<\/p>\n<p>\u672c\u6587\u5c06\u6df1\u5165Android 15\u6e90\u7801,\u5256\u6790ServiceManager\u7684\u5de5\u4f5c\u673a\u5236:<\/p>\n<p>\u4f60\u5c06\u5b66\u5230:<\/p>\n<ul>\n<li>ServiceManager\u7684\u542f\u52a8\u6d41\u7a0b\u4e0e\u7279\u6b8a\u6027<\/li>\n<li>\u670d\u52a1\u6ce8\u518c(addService)\u7684\u5b8c\u6574\u5b9e\u73b0<\/li>\n<li>\u670d\u52a1\u67e5\u8be2(getService)\u7684\u67e5\u627e\u673a\u5236<\/li>\n<li>\u6b7b\u4ea1\u901a\u77e5(DeathRecipient)\u7684\u5de5\u4f5c\u539f\u7406<\/li>\n<li>VINTF\u58f0\u660e\u9a8c\u8bc1\u4e0e\u5b89\u5168\u673a\u5236<\/li>\n<li>Android 15\u7684\u65b0\u7279\u6027\u4e0e\u4f18\u5316<\/li>\n<\/ul>\n<h3>ServiceManager\u7684\u7279\u6b8a\u6027<\/h3>\n<p>\u5728\u6df1\u5165\u4ee3\u7801\u524d,\u6211\u4eec\u5148\u7406\u89e3ServiceManager\u7684\u51e0\u4e2a\u7279\u6b8a\u4e4b\u5904\u3002<\/p>\n<h4>1. Handle 0:ServiceManager\u7684\u552f\u4e00\u6807\u8bc6<\/h4>\n<p>\u5728Binder\u7cfb\u7edf\u4e2d,ServiceManager\u6709\u4e00\u4e2a\u786c\u7f16\u7801\u7684\u53e5\u67c4\u503c:0\u3002<\/p>\n<p><span class=\"token comment\">\/\/ ProcessState.cpp<\/span><br \/>\n<span class=\"token keyword\">enum<\/span> <span class=\"token punctuation\">{<\/p>\n<p>   <\/span><br \/>\n    CONTEXT_MGR_HANDLE <span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span>  <span class=\"token comment\">\/\/ ServiceManager\u7684\u53e5\u67c4\u56fa\u5b9a\u4e3a0<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8fd9\u662f\u4e00\u4e2a\\&#8221;\u5148\u6709\u9e21\u8fd8\u662f\u5148\u6709\u86cb\\&#8221;\u7684\u95ee\u9898:<\/p>\n<ul>\n<li>\u6240\u6709\u670d\u52a1\u90fd\u9700\u8981\u5411ServiceManager\u6ce8\u518c<\/li>\n<li>\u4f46\u5ba2\u6237\u7aef\u5982\u4f55\u83b7\u53d6ServiceManager\u7684\u53e5\u67c4?<\/li>\n<\/ul>\n<p>\u89e3\u51b3\u65b9\u6848:\u5c06ServiceManager\u7684\u53e5\u67c4\u786c\u7f16\u7801\u4e3a0\u3002\u8fd9\u6837,\u6240\u6709\u8fdb\u7a0b\u90fd\u77e5\u9053,\u8981\u4e0eServiceManager\u901a\u4fe1,\u53ea\u9700\u8981\u4f7f\u7528handle=0\u3002<\/p>\n<p>\ud83d\udca1 \u8bbe\u8ba1\u5de7\u601d: Handle 0\u662fBinder\u534f\u8bae\u7684\u7279\u6b8a\u7ea6\u5b9a,\u5728Binder\u9a71\u52a8\u521d\u59cb\u5316\u65f6\u5c31\u9884\u7559\u4e86\u8fd9\u4e2a\u4f4d\u7f6e\u7ed9ServiceManager\u3002\u8fd9\u662f\u4e00\u4e2a\u4f18\u96c5\u7684\u5f15\u5bfc\u673a\u5236(Bootstrap)\u3002<\/p>\n<h4>2. Context Manager:\u6210\u4e3aBinder\u4e0a\u4e0b\u6587\u7ba1\u7406\u8005<\/h4>\n<p>ServiceManager\u4e0d\u4ec5\u4ec5\u662f\u4e00\u4e2a\u666e\u901a\u670d\u52a1,\u5b83\u8fd8\u662fBinder\u4e0a\u4e0b\u6587\u7ba1\u7406\u8005(Context Manager)\u3002<\/p>\n<p><span class=\"token comment\">\/\/ main.cpp (Android 15)<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> argc<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">char<\/span><span class=\"token operator\">*<\/span><span class=\"token operator\">*<\/span> argv<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/p>\n<p>   <\/span><br \/>\n    <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span><span class=\"token operator\">*<\/span> driver <span class=\"token operator\">=<\/span> argc <span class=\"token operator\">==<\/span> <span class=\"token number\">2<\/span> <span class=\"token operator\">?<\/span> argv<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">:<\/span> <span class=\"token string\">\\&#8221;\/dev\/binder\\&#8221;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    sp<span class=\"token operator\">&lt;<\/span>ProcessState<span class=\"token operator\">&gt;<\/span> ps <span class=\"token operator\">=<\/span> <span class=\"token class-name\">ProcessState<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">initWithDriver<\/span><span class=\"token punctuation\">(<\/span>driver<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    sp<span class=\"token operator\">&lt;<\/span>ServiceManager<span class=\"token operator\">&gt;<\/span> manager <span class=\"token operator\">=<\/span> <span class=\"token class-name\">sp<\/span><span class=\"token operator\">&lt;<\/span>ServiceManager<span class=\"token operator\">&gt;<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">make<\/span><span class=\"token punctuation\">(<\/span>std<span class=\"token double-colon punctuation\">::<\/span><span class=\"token generic-function\"><span class=\"token function\">make_unique<\/span><span class=\"token generic class-name\"><span class=\"token operator\">&lt;<\/span>Access<span class=\"token operator\">&gt;<\/span><\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5173\u952e\u6b65\u9aa41:\u5c06\u81ea\u5df1\u8bbe\u7f6e\u4e3aContext Object<\/span><br \/>\n    <span class=\"token class-name\">IPCThreadState<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">self<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">setTheContextObject<\/span><span class=\"token punctuation\">(<\/span>manager<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5173\u952e\u6b65\u9aa42:\u5411\u9a71\u52a8\u6ce8\u518c\u4e3aContext Manager<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>ps<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">becomeContextManager<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/p>\n<p>   <\/span><br \/>\n        <span class=\"token function\">LOG<\/span><span class=\"token punctuation\">(<\/span>FATAL<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\\&#8221;Could not become context manager\\&#8221;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8fdb\u5165\u6d88\u606f\u5faa\u73af<\/span><br \/>\n    sp<span class=\"token operator\">&lt;<\/span>Looper<span class=\"token operator\">&gt;<\/span> looper <span class=\"token operator\">=<\/span> <span class=\"token class-name\">Looper<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">prepare<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">false<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/p>\n<p>   <\/span><br \/>\n        looper<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">pollAll<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>becomeContextManager\u505a\u4e86\u4ec0\u4e48?<\/p>\n<p><span class=\"token comment\">\/\/ ProcessState.cpp<\/span><br \/>\n<span class=\"token keyword\">bool<\/span> <span class=\"token class-name\">ProcessState<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">becomeContextManager<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/p>\n<p>   <\/span><br \/>\n    <span class=\"token comment\">\/\/ \u901a\u8fc7ioctl\u544a\u8bc9\u9a71\u52a8:\\&#8221;\u6211\u662fServiceManager\\&#8221;<\/span><br \/>\n    flat_binder_object obj<span class=\"token punctuation\">{<\/p>\n<p>   <\/span><br \/>\n        <span class=\"token punctuation\">.<\/span>flags <span class=\"token operator\">=<\/span> FLAT_BINDER_FLAG_ACCEPTS_FDS<span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    binder_write_read bwr<span class=\"token punctuation\">{<\/p>\n<p>   <\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    binder_transaction_data tr<span class=\"token punctuation\">{<\/p>\n<p>   <\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    tr<span class=\"token punctuation\">.<\/span>target<span class=\"token punctuation\">.<\/span>handle <span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    tr<span class=\"token punctuation\">.<\/span>code <span class=\"token operator\">=<\/span> BINDER_SET_CONTEXT_MGR<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u9a71\u52a8\u4f1a\u5c06handle 0\u7ed1\u5b9a\u5230\u5f53\u524d\u8fdb\u7a0b<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> result <span class=\"token operator\">=<\/span> <span class=\"token function\">ioctl<\/span><span class=\"token punctuation\">(<\/span>mDriverFD<span class=\"token punctuation\">,<\/span> BINDER_WRITE_READ<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>bwr<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> result <span class=\"token operator\">==<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u9a71\u52a8\u6536\u5230BINDER_SET_CONTEXT_MGR\u547d\u4ee4\u540e,\u4f1a:<\/p>\n<li>\u68c0\u67e5\u8c03\u7528\u8fdb\u7a0b\u662f\u5426\u6709\u6743\u9650(\u9700\u8981root\u6216system\u6743\u9650)<\/li>\n<li>\u5c06handle 0\u6c38\u4e45\u7ed1\u5b9a\u5230ServiceManager\u8fdb\u7a0b<\/li>\n<li>\u786e\u4fdd\u53ea\u6709\u4e00\u4e2a\u8fdb\u7a0b\u80fd\u6210\u4e3aContext Manager<\/li>\n<h4>3. \u5355\u4f8b\u4e14\u552f\u4e00<\/h4>\n<p>\u6574\u4e2aAndroid\u7cfb\u7edf\u4e2d,\u53ea\u80fd\u6709\u4e00\u4e2aServiceManager\u5b9e\u4f8b\u3002\u5b83\u7531init\u8fdb\u7a0b\u5728\u7cfb\u7edf\u542f\u52a8\u65e9\u671f\u542f\u52a8,\u5e76\u4e00\u76f4\u8fd0\u884c\u76f4\u5230\u7cfb\u7edf\u5173\u95ed\u3002<\/p>\n<p><span class=\"token comment\"># init.rc\u4e2d\u7684ServiceManager\u542f\u52a8\u914d\u7f6e<\/span><br \/>\n<span class=\"token function\">service<\/span> servicemanager \/system\/bin\/servicemanager<br \/>\n    class core animation<br \/>\n    user system<br \/>\n    group system readproc<br \/>\n    critical<br \/>\n    onrestart restart apexd<br \/>\n    onrestart restart audioserver<br \/>\n    <span class=\"token comment\"># &#8230;\u91cd\u542f\u65f6\u9700\u8981\u91cd\u542f\u4f9d\u8d56\u7684\u670d\u52a1<\/span><\/p>\n<p>critical\u6807\u5fd7:ServiceManager\u88ab\u6807\u8bb0\u4e3a\u5173\u952e\u670d\u52a1,\u5982\u679c\u5b83\u5d29\u6e83,\u7cfb\u7edf\u4f1a\u81ea\u52a8\u91cd\u542f\u8fdb\u5165\u6062\u590d\u6a21\u5f0f\u3002<\/p>\n<h3>ServiceManager\u67b6\u6784\u6982\u89c8<\/h3>\n<p>\u5728\u6df1\u5165\u542f\u52a8\u6d41\u7a0b\u524d,\u5148\u770b\u770bServiceManager\u7684\u6574\u4f53\u67b6\u6784:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260207123321-69873111465d0.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"><\/p>\n<p>\u56fe1: ServiceManager\u67b6\u6784 &#8211; SystemServer\u6ce8\u518c\u670d\u52a1,Client\u67e5\u8be2\u670d\u52a1,ServiceManager\u7ef4\u62a4\u670d\u52a1\u6ce8\u518c\u8868<\/p>\n<h3>ServiceManager\u542f\u52a8\u6d41\u7a0b<\/h3>\n<p>\u8ba9\u6211\u4eec\u8ddf\u8e2aServiceManager\u4ece\u542f\u52a8\u5230\u5c31\u7eea\u7684\u5b8c\u6574\u6d41\u7a0b\u3002<\/p>\n<h4>1. main\u51fd\u6570:\u521d\u59cb\u5316\u4e0e\u51c6\u5907<\/h4>\n<p><span class=\"token comment\">\/\/ main.cpp (Android 15)<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> argc<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">char<\/span><span class=\"token operator\">*<\/span><span class=\"token operator\">*<\/span> argv<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/p>\n<p>   <\/span><br \/>\n    <span class=\"token comment\">\/\/ 1. \u521d\u59cb\u5316\u65e5\u5fd7<\/span><br \/>\n    android<span class=\"token double-colon punctuation\">::<\/span>base<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">InitLogging<\/span><span class=\"token punctuation\">(<\/span>argv<span class=\"token punctuation\">,<\/span> android<span class=\"token double-colon punctuation\">::<\/span>base<span class=\"token double-colon punctuation\">::<\/span>KernelLogger<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span><span class=\"token operator\">*<\/span> driver <span class=\"token operator\">=<\/span> argc <span class=\"token operator\">==<\/span> <span class=\"token number\">2<\/span> <span class=\"token operator\">?<\/span> argv<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">:<\/span> <span class=\"token string\">\\&#8221;\/dev\/binder\\&#8221;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">if<\/span> <span class=\"token expression\"><span class=\"token operator\">!<\/span><span class=\"token function\">defined<\/span><span class=\"token punctuation\">(<\/span>VENDORSERVICEMANAGER<span class=\"token punctuation\">)<\/span><\/span><\/span><br \/>\n    android<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">register_perfetto_te_categories<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ Perfetto\u8ffd\u8e2a<\/span><br \/>\n    <span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">endif<\/span><\/span><\/p>\n<p>    <span class=\"token function\">LOG<\/span><span class=\"token punctuation\">(<\/span>INFO<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\\&#8221;Starting sm instance on \\&#8221;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> driver<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 2. \u521d\u59cb\u5316ProcessState<\/span><br \/>\n    sp<span class=\"token operator\">&lt;<\/span>ProcessState<span class=\"token operator\">&gt;<\/span> ps <span class=\"token operator\">=<\/span> <span class=\"token class-name\">ProcessState<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">initWithDriver<\/span><span class=\"token punctuation\">(<\/span>driver<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    ps<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">setThreadPoolMaxThreadCount<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u4e0d\u4f7f\u7528\u7ebf\u7a0b\u6c60,\u5355\u7ebf\u7a0b\u5904\u7406<\/span><br \/>\n    ps<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">setCallRestriction<\/span><span class=\"token punctuation\">(<\/span>ProcessState<span class=\"token double-colon punctuation\">::<\/span>CallRestriction<span class=\"token double-colon punctuation\">::<\/span>FATAL_IF_NOT_ONEWAY<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 3. \u7981\u7528\u540e\u53f0\u8c03\u5ea6,\u786e\u4fdd\u9ad8\u4f18\u5148\u7ea7<\/span><br \/>\n    <span class=\"token class-name\">IPCThreadState<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">self<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">disableBackgroundScheduling<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 4. \u521b\u5efaServiceManager\u5b9e\u4f8b<\/span><br \/>\n    sp<span class=\"token operator\">&lt;<\/span>ServiceManager<span class=\"token operator\">&gt;<\/span> manager <span class=\"token operator\">=<\/span> <span class=\"token class-name\">sp<\/span><span class=\"token operator\">&lt;<\/span>ServiceManager<span class=\"token operator\">&gt;<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">make<\/span><span class=\"token punctuation\">(<\/span>std<span class=\"token double-colon punctuation\">::<\/span><span class=\"token generic-function\"><span class=\"token function\">make_unique<\/span><span class=\"token generic class-name\"><span class=\"token operator\">&lt;<\/span>Access<span class=\"token operator\">&gt;<\/span><\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 5. \u81ea\u5df1\u4e5f\u8981\u6ce8\u518c\u4e3a\u670d\u52a1(\u670d\u52a1\u7684\u670d\u52a1)<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>manager<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">addService<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\\&#8221;manager\\&#8221;<\/span><span class=\"token punctuation\">,<\/span> manager<span class=\"token punctuation\">,<\/span><br \/>\n                            <span class=\"token boolean\">false<\/span> <span class=\"token comment\">\/*allowIsolated*\/<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                            IServiceManager<span class=\"token double-colon punctuation\">::<\/span>DUMP_FLAG_PRIORITY_DEFAULT<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">isOk<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/p>\n<p>   <\/span><br \/>\n        <span class=\"token function\">LOG<\/span><span class=\"token punctuation\">(<\/span>ERROR<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\\&#8221;Could not self register servicemanager\\&#8221;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 6. \u6210\u4e3aContext Manager<\/span><br \/>\n    <span class=\"token class-name\">IPCThreadState<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">self<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token function\">setTheContextObject<\/span><span class=\"token punctuation\">(<\/span>manager<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>ps<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">becomeContextManager<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/p>\n<p>   <\/span><br \/>\n        <span class=\"token function\">LOG<\/span><span class=\"token punctuation\">(<\/span>FATAL<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\\&#8221;Could not become context manager\\&#8221;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 7. \u8bbe\u7f6e\u4e8b\u4ef6\u5faa\u73af<\/span><br \/>\n    sp<span class=\"token operator\">&lt;<\/span>Looper<span class=\"token operator\">&gt;<\/span> looper <span class=\"token operator\">=<\/span> <span class=\"token class-name\">Looper<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">prepare<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">false<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    sp<span class=\"token operator\">&lt;<\/span>BinderCallback<span class=\"token operator\">&gt;<\/span> binderCallback <span class=\"token operator\">=<\/span> <span class=\"token class-name\">BinderCallback<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">setupTo<\/span><span class=\"token punctuation\">(<\/span>looper<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token class-name\">ClientCallbackCallback<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">setupTo<\/span><span class=\"token punctuation\">(<\/span>looper<span class=\"token punctuation\">,<\/span> manager<span class=\"token punctuation\">,<\/span> binderCallback<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 8. \u8bbe\u7f6eready\u5c5e\u6027,\u901a\u77e5\u5176\u4ed6\u8fdb\u7a0b\u53ef\u4ee5\u4f7f\u7528\u4e86<\/span><br \/>\n    <span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">ifndef<\/span> <span class=\"token expression\">VENDORSERVICEMANAGER<\/span><\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span><span class=\"token function\">SetProperty<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\\&#8221;servicemanager.ready\\&#8221;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\\&#8221;true\\&#8221;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/p>\n<p>   <\/span><br \/>\n        <span class=\"token function\">LOG<\/span><span class=\"token punctuation\">(<\/span>ERROR<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\\&#8221;Failed to set servicemanager ready property\\&#8221;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">endif<\/span><\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 9. \u8fdb\u5165\u6d88\u606f\u5faa\u73af,\u6c38\u4e0d\u9000\u51fa<\/span><br \/>\n    <span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/p>\n<p>   <\/span><br \/>\n        looper<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">pollAll<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u963b\u585e\u7b49\u5f85Binder\u4e8b\u52a1<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">return<\/span> EXIT_FAILURE<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u4e0d\u5e94\u8be5\u5230\u8fbe\u8fd9\u91cc<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5173\u952e\u70b9\u89e3\u6790:<\/p>\n<li>\u5355\u7ebf\u7a0b\u6a21\u5f0f:setThreadPoolMaxThreadCount(0)\u8868\u793a\u4e0d\u4f7f\u7528Binder\u7ebf\u7a0b\u6c60,\u53ea\u7528\u4e3b\u7ebf\u7a0b\u5904\u7406,\u7b80\u5316\u5e76\u53d1\u63a7\u5236<\/li>\n<li>\u53ea\u63a5\u53d7\u5355\u5411\u8c03\u7528:FATAL_IF_NOT_ONEWAY\u786e\u4fdd\u6240\u6709\u5bf9ServiceManager\u7684\u8c03\u7528\u90fd\u662f\u5f02\u6b65\u7684,\u9632\u6b62\u6b7b\u9501<\/li>\n<li>\u9ad8\u4f18\u5148\u7ea7:disableBackgroundScheduling(true)\u786e\u4fddServiceManager\u4e0d\u4f1a\u88ab\u964d\u4f18\u5148\u7ea7<\/li>\n<li>\u81ea\u6211\u6ce8\u518c:ServiceManager\u4e5f\u5c06\u81ea\u5df1\u6ce8\u518c\u4e3a\u540d\u4e3a\\&#8221;manager\\&#8221;\u7684\u670d\u52a1,\u4f9b\u7279\u6b8a\u60c5\u51b5\u4f7f\u7528<\/li>\n<li>Ready\u5c5e\u6027:\u901a\u8fc7\u7cfb\u7edf\u5c5e\u6027\u901a\u77e5\u5176\u4ed6\u7b49\u5f85\u7684\u8fdb\u7a0b<\/li>\n<h4>2. Looper\u4e8b\u4ef6\u5faa\u73af<\/h4>\n<p>ServiceManager\u4f7f\u7528Looper\u800c\u4e0d\u662f\u4f20\u7edf\u7684Binder\u7ebf\u7a0b\u6c60:<\/p>\n<p><span class=\"token comment\">\/\/ BinderCallback:\u5904\u7406Binder\u4e8b\u4ef6<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">BinderCallback<\/span> <span class=\"token operator\">:<\/span> <span class=\"token base-clause\"><span class=\"token keyword\">public<\/span> <span class=\"token class-name\">LooperCallback<\/span><\/span> <span class=\"token punctuation\">{<\/p>\n<p>   <\/span><br \/>\n<span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token keyword\">static<\/span> sp<span class=\"token operator\">&lt;<\/span>BinderCallback<span class=\"token operator\">&gt;<\/span> <span class=\"token function\">setupTo<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> sp<span class=\"token operator\">&lt;<\/span>Looper<span class=\"token operator\">&gt;<\/span><span class=\"token operator\">&amp;<\/span> looper<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/p>\n<p>   <\/span><br \/>\n        sp<span class=\"token operator\">&lt;<\/span>BinderCallback<span class=\"token operator\">&gt;<\/span> cb <span class=\"token operator\">=<\/span> <span class=\"token class-name\">sp<\/span><span class=\"token operator\">&lt;<\/span>BinderCallback<span class=\"token operator\">&gt;<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">make<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f15\u8a00<br \/>\n\u5728\u4e0a\u4e00\u7bc7\u6587\u7ae0\u4e2d,\u6211\u4eec\u6df1\u5165\u5206\u6790\u4e86Binder\u9a71\u52a8\u7684\u5185\u6838\u673a\u5236\u3002\u4f46\u662f\u6709\u4e00\u4e2a\u6838\u5fc3\u95ee\u9898\u8fd8\u6ca1\u6709\u56de\u7b54:Client\u5982\u4f55\u77e5\u9053Server\u7684Binder\u53e5\u67c4?<br \/>\n\u60f3\u8c61\u4e00\u4e0b,\u4f60\u60f3\u6253\u7535\u8bdd\u7ed9\u670b\u53cb,\u4f46\u4f60\u4e0d\u77e5\u9053\u4ed6\u7684\u7535\u8bdd\u53f7\u7801\u3002\u8fd9\u65f6\u4f60\u9700\u8981\u67e5\u7535\u8bdd\u7c3f(Yellow Pages)\u3002\u5728Android\u7cfb\u7edf\u4e2d,ServiceManager\u5c31\u662f\u8fd9\u672c\\&#8221;\u7535\u8bdd\u7c3f\\&#8221;\u2014\u2014\u5b83\u7ef4\u62a4\u4e86\u7cfb\u7edf\u4e2d\u6240\u6709\u670d\u52a1\u7684\u6ce8\u518c\u8868,\u63d0\u4f9b\u670d\u52a1\u7684\u6ce8\u518c\u548c\u67e5\u8be2\u529f\u80fd\u3002<br \/>\n\u6ca1\u6709ServiceManager,Binder IPC\u5c31\u65e0\u6cd5\u5de5\u4f5c\u3002\u6240\u6709\u7684\u7cfb\u7edf\u670d\u52a1(\u5982Acti<\/p>\n","protected":false},"author":2,"featured_media":73539,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[7333,84],"topic":[],"class_list":["post-73540","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-binder","tag-android"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Android 15 ServiceManager\u4e0eBinder\u670d\u52a1\u6ce8\u518c\u6df1\u5ea6\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/73540.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Android 15 ServiceManager\u4e0eBinder\u670d\u52a1\u6ce8\u518c\u6df1\u5ea6\u89e3\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u5f15\u8a00 \u5728\u4e0a\u4e00\u7bc7\u6587\u7ae0\u4e2d,\u6211\u4eec\u6df1\u5165\u5206\u6790\u4e86Binder\u9a71\u52a8\u7684\u5185\u6838\u673a\u5236\u3002\u4f46\u662f\u6709\u4e00\u4e2a\u6838\u5fc3\u95ee\u9898\u8fd8\u6ca1\u6709\u56de\u7b54:Client\u5982\u4f55\u77e5\u9053Server\u7684Binder\u53e5\u67c4? 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