{"id":72,"date":"2009-01-08T17:07:41","date_gmt":"2009-01-08T17:07:41","guid":{"rendered":"http:\/\/kumouse.aafox.com\/?p=72"},"modified":"2009-01-08T17:07:41","modified_gmt":"2009-01-08T17:07:41","slug":"%e5%86%85%e5%ad%98%e6%98%a0%e5%b0%84%e6%96%87%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/www.kumouse.com\/?p=72","title":{"rendered":"\u5185\u5b58\u6620\u5c04\u6587\u4ef6"},"content":{"rendered":"<p>\u4f7f\u7528\u5185\u5b58\u6620\u5c04\u6587\u4ef6<br \/>1.\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u51fd\u6570<br \/>\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u5305\u62ec:CreateFileMapping,OpenFileMapping,MapViewOfFile,UnmapViewOfFile\u548cFlushViewOfFile.<br \/>\u521b\u5efa\u4e00\u4e2a\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u5bf9\u8c61\u4f7f\u7528CreateFileMapping\u8fd9\u4e2a\u6b65\u9aa4\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u7684\u7528\u9014(\u662f\u5728\u78c1\u76d8\u4e0a\u5efa\u7acb\u5185\u5b58\u6620\u5c04\u6587\u4ef6,\u8fd8\u662f\u5728\u9875\u6587\u4ef6\u4e2d\u5efa\u7acb\u8fdb\u7a0b\u95f4\u5171\u4eab\u7684\u6620\u5c04<\/p>\n<blockquote><p>invoke CreateFileMapping,hFile,lpFileMappingAttributes,flProtect,dwMaximumSizeHigh,dwMaximumSizeLow,lpName<br \/>.if eax<br \/>    mov hFileMap,eax<\/p><\/blockquote>\n<p>hFile:\u6307\u5b9a\u4e00\u4e2a\u6587\u4ef6\u53e5\u67c4.\u5982\u679c\u53e5\u67c4\u662f\u5c5e\u4e8e\u4e00\u4e2a\u5df2\u7ecf\u6253\u5f00\u7684\u6587\u4ef6\u7684,\u90a3\u4e48\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u5c06\u5728\u8fd9\u4e2a\u6587\u4ef6\u4e0a\u9762\u5efa\u7acb;\u5982\u679c\u8981\u5efa\u7acb\u5b58\u5728\u4e8e\u9875\u6587\u4ef6\u4e2d\u7684\u5185\u5b58\u6620\u5c04\u4f9b\u4e0d\u540c\u8fdb\u7a0b\u5171\u4eab,\u90a3\u4e2ahFile\u6307\u5b9a\u4e3a-1<br \/>lpFileMappingAttributes:\u6307\u5411\u4e00\u4e2aSECURITY_ATTRIBUTES\u7ed3\u6784,\u7528\u6765\u5b9a\u4e49\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u5bf9\u8c61\u662f\u5426\u53ef\u7ee7\u627f<br \/>SECURITY_ATTRIBUTES\u7ed3\u6784,\u8be5\u7ed3\u6784\u5b9a\u4e49\u5982\u4e0b<\/p>\n<blockquote><p>SECURITY_ATTRIBUTES STRUCT<br \/>nLength DWORD ? ;\u672c\u7ed3\u6784\u7684\u957f\u5ea6<br \/>lpSectrityDescriptor DWORD ?<br \/>bInheritHandle DWORD ? ;\u662f\u5426\u5141\u8bb8\u7ee7\u627f<br \/>SECURITY_ATTRIBUTES ENDS<\/p><\/blockquote>\n<p>\u5c06nLength\u8bbe\u7f6e\u4e3a\u7ed3\u6784\u7684\u957f\u5ea6\uff0c\u5c06bInheritHandle\u8bbe\u7f6e\u4e3aTRUE\u5c31\u53ef\u4ee5\u4f7f\u53e5\u67c4\u80fd\u591f\u88ab\u5b50\u8fdb\u7a0b\u7ee7\u627f<br \/>\u4e0d\u7ee7\u627f\u53ef\u628a\u8fd9\u4e2a\u53c2\u6570\u8bbe\u7f6e\u4e3aNULL<br \/>flProtect:\u6307\u5b9a\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u7684\u4fdd\u62a4\u7c7b\u578b,\u67093\u4e2a\u53d6\u503c<br \/>PAGE_READONLY:\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u63d0\u4ea4\u7684\u5185\u5b58\u9875\u9762\u662f\u53ea\u8bfb\u7684,\u5bf9\u5e94\u7684CreateFile\u4e5f\u8981\u8bbe\u7f6eGENERIC_READ\u6807\u5fd7<br \/>PAGE_READWRITE:\u5185\u5b58\u9875\u9762\u53ef\u8bfb\u5199,\u5bf9\u5e94CreateFile\u8bbe\u7f6eGENERIC_READ\u548cGENERIC_WRITE<br \/>PAGE_WRITECOPY:\u5185\u5b58\u9875\u53ef\u4ee5\u6709Copy on Write\u5c5e\u6027.\u5bf9\u5e94CreateFile\u8bbe\u7f6eGENERIC_READ\u548cGENERIC_WRITE<br \/>dwMaximumSizeHigh\u548cdwMaximumSizeLow:\u8fd9\u4e24\u4e2a\u53c2\u6570\u7ec4\u5408\u6307\u5b9a\u4e86\u4e00\u4e2a64\u4f4d\u7684\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u957f\u5ea6,\u5982\u679c\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u7528\u4e8e\u78c1\u76d8\u6587\u4ef6\u7684\u65f6\u5019,\u8fd9\u4e2a\u957f\u5ea6\u5982\u5927\u4e8e\u78c1\u76d8\u6587\u4ef6\u957f\u5ea6,\u78c1\u76d8\u6587\u4ef6\u5c06\u6269\u5c55\u5230\u8fd9\u4e2a\u957f\u5ea6.\u5982\u5c0f\u4e8e\u78c1\u76d8\u6587\u4ef6\u957f\u5ea6,\u90a3\u4e48\u53ea\u80fd\u5b58\u53d6\u78c1\u76d8\u6587\u4ef6\u7684\u4e00\u90e8\u5206,\u4e00\u79cd\u7b80\u5355\u7684\u65b9\u6cd5\u662f\u5168\u8bbe\u7f6e\u62100,\u7cfb\u7edf\u5f53\u81ea\u52a8\u8c03\u6574\u78c1\u76d8\u6587\u4ef6\u5927\u5c0f<br \/>lpName:\u7528\u6765\u7ed9\u5b9a\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u7684\u540d\u5b57.\u5f53\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u4f5c\u7528\u4e8e\u78c1\u76d8\u6587\u4ef6\u7684\u65f6\u5019,\u4e0d\u9700\u8981\u7ed9\u5b83\u8d77\u540d;\u5982\u7528\u4e8e\u8fdb\u7a0b\u95f4\u5171\u4eab\u5185\u5b58,\u90a3\u5c31\u5fc5\u987b\u4e3a\u8be5\u5bf9\u8c61\u547d\u540d,\u56e0\u4e3a\u5728\u5176\u5b83\u8fdb\u7a0b\u4e2d\u53ea\u6709\u4f7f\u7528\u8fd9\u4e2a\u540d\u79f0\u624d\u80fd\u6253\u5f00\u8fd9\u4e2a\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u5bf9\u8c61,\u8be5\u540d\u5b57\u5b57\u7b26\u4e32\u4e0d\u80fd\u548c\u5176\u4ed6\u8fdb\u7a0b\u5df2\u521b\u5efa\u7684\u5bf9\u8c61\u540c\u540d.<\/p>\n<p>\u5f53\u4e00\u4e2a\u8fdb\u7a0b\u521b\u5efa\u5185\u5b58\u5171\u4eab\u6587\u4ef6\u7528\u4e8e\u548c\u5176\u4ed6\u8fdb\u7a0b\u5171\u4eab\u7684\u65f6\u5019,\u5176\u5b83\u8fdb\u7a0b\u4e0d\u80fd\u518d\u4f7f\u7528CreateFileMapping\u53bb\u521b\u5efa\u540c\u6837\u7684\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u5bf9\u8c61,\u800c\u662f\u8981\u7528OpenFileMapping\u51fd\u6570\u6253\u5f00\u521b\u5efa\u597d\u7684\u5bf9\u8c61<\/p>\n<blockquote><p>invoke OpenFileMapping,dwDesiredAccess,bInheritHandle,lpName<br \/>.if eax<br \/>    mov hFileMap,eax<br \/>.endif<\/p><\/blockquote>\n<p>dwDesiredAccess:\u53c2\u6570\u6307\u5b9a\u4fdd\u62a4\u7c7b\u578b,\u67093\u4e2a\u53d6\u503c<br \/>FILE_MAP_WRITE(\u6216FILE_MAP_ALL_ACCESS):\u53ef\u5199\u5c5e\u6027<br \/>FILE_MAP_READ:\u53ef\u8bfb\u5c5e\u6027<br \/>FILE_MAP_COPY:Copy on write\u5c5e\u6027<br \/>lpName:\u6307\u5411\u7684\u540d\u5b57\u5c31\u662f\u521b\u5efa\u5bf9\u8c61\u65f6\u4f7f\u7528\u7684\u540d\u5b57<br \/>\u5982\u679cCreateFileMapping\u6216OpenFileMapping\u51fd\u6570\u6267\u884c\u6210\u529f\u8fd4\u56de\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u53e5\u67c4,\u5982\u679c\u6267\u884c\u5931\u8d25\u8fd4\u56deNULL<\/p>\n<p>MapViewOfFile\u51fd\u6570\u7528\u6765\u6620\u5c04\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u7684\u4e00\u4e2a\u89c6\u56fe,\u8fd9\u4e2a\u51fd\u6570\u7684\u7528\u6cd5<\/p>\n<blockquote><p>invoke MapViewOfFile,hFile,hFileMap,dwDesiredAccess,dwFileOffsetHigh,dwFileOffsetLow,dwNumberOfBytesToMap<br \/>.if eax<br \/>   mov lpMemory,eax<br \/>.endif<\/p><\/blockquote>\n<p>hFileMap:CreateFileMapping\u6216OpenFileMapping\u8fd4\u56de\u7684\u53e5\u67c4<br \/>dwDesiredAccess:\u6307\u5b9a\u4fdd\u62a4\u7c7b\u578b<br \/>FILE_MAP_WRITE(\u6216FILE_MAP_ALL_ACCESS):\u53ef\u5199\u5c5e\u6027<br \/>FILE_MAP_READ:\u53ef\u8bfb\u5c5e\u6027<br \/>FILE_MAP_COPY:Copy on write\u5c5e\u6027<br \/>dwFileOffsetHigh\u548cdwFileOffsetLow:\u7ec4\u621064\u4f4d\u7684\u504f\u79fb\u91cf,\u7528\u6765\u6307\u5b9a\u89c6\u56fe\u7684\u57fa\u5730\u5740\u662f\u4ece\u6587\u4ef6\u7684\u54ea\u4e2a\u4f4d\u7f6e\u5f00\u59cb\u6620\u5c04<br \/>dwNumberOfBytesToMap:\u6307\u5b9a\u6620\u5c04\u7684\u5b57\u8282\u6570,\u5982\u679c\u8bbe\u7f6e\u4e3a0\u5219\u6620\u5c04\u7684\u662f\u6574\u4e2a\u6587\u4ef6,\u540c\u65f6\u504f\u79fb\u5730\u5740\u88ab\u5ffd\u7565<br \/>\u5982\u679c\u6620\u5c04\u6210\u529f,\u8fd4\u56de\u4e00\u4e2a\u5730\u5740,\u5982\u679c\u6620\u5c04\u5931\u8d25,\u5219\u8fd4\u56deNULL<\/p>\n<p>\u5f53\u4e0d\u518d\u4f7f\u7528\u6620\u5c04\u6587\u4ef6\u540e,\u901a\u8fc7UnmapViemOfFile\u51fd\u6570\u64a4\u9500\u6620\u5c04\u5e76\u4f7f\u7528CloseHandle\u51fd\u6570\u5173\u95ed\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u5bf9\u8c61\u53e5\u67c4<\/p>\n<blockquote><p>invoke UnmapViewOfFile,lpMemory<br \/>invoke CloseHandle,hFileMap<\/p><\/blockquote>\n<p>\u89c6\u56fe\u4e2d\u7684\u5185\u5b58\u4fee\u6539\u540e,\u7cfb\u7edf\u4f1a\u5728\u89c6\u56fe\u64a4\u9500\u6620\u5c04\u6216\u6587\u4ef6\u6620\u5c04\u5bf9\u8c61\u88ab\u5220\u9664\u65f6\u81ea\u52a8\u5c06\u6570\u636e\u5199\u5230\u78c1\u76d8\u4e0a,\u4f46\u53ef\u4ee5\u6839\u636e\u9700\u8981\u5c06\u5bf9\u6587\u4ef6\u7684\u4fee\u6539\u7acb\u5373\u5199\u5230\u78c1\u76d8\u4e0a,\u8be5\u529f\u80fd\u7684\u51fd\u6570FlushViewOfFile<\/p>\n<blockquote><p>invoke FlushViewOfFile,lpMemory,dwFileSize<\/p><\/blockquote>\n<p>\u8be5\u51fd\u6570\u5c06\u4ece\u6307\u5b9a\u5730\u5740\u5f00\u59cb,\u6307\u5b9a\u5927\u5c0f\u7684\u6570\u636e\u5757\u4e2d\u7684\u810f\u9875\u9762\u5199\u5230\u78c1\u76d8,\u6307\u5b9a\u7684\u5185\u5b58\u8303\u56f4\u5fc5\u987b\u4f4d\u4e8e\u89c6\u56fe\u7684\u8fb9\u754c\u4e4b\u5185<\/p>\n<p>2\u4f7f\u7528\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u8bfb\u5199\u6587\u4ef6<br \/>\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u8bfb\u5199\u6587\u4ef6\u7684\u6b65\u9aa4<br \/>  (1) \u8c03\u7528CreateFile\u6253\u5f00\u60f3\u8981\u6620\u5c04\u7684\u6587\u4ef6,\u5f97\u5230hFile<br \/>  (2) \u8c03\u7528CreateFileMapping\u51fd\u6570\u751f\u6210\u4e00\u4e2a\u5efa\u7acb\u5728CreateFile\u51fd\u6570\u521b\u5efa\u7684\u6587\u4ef6\u5bf9\u8c61\u57fa\u7840\u4e0a\u7684\u5185\u5b58\u6620\u5c04\u5bf9\u8c61,\u5f97\u5230hFileMap<br \/>  (3) \u8c03\u7528MapViewOfFile\u628a\u6574\u4e2a\u6587\u4ef6\u7684\u4e00\u4e2a\u533a\u57df\u6216\u6574\u4e2a\u6587\u4ef6\u6620\u5c04\u5230\u5185\u5b58\u4e2d,\u5f97\u5230\u6307\u5411\u6620\u5c04\u5230\u5185\u5b58\u7684\u7b2c\u4e00\u4e2a\u5b57\u8282\u7684\u6307\u9488lpMemory<br \/>  (4) \u7528\u8be5\u6307\u9488\u6765\u8bfb\u5199\u6587\u4ef6<br \/>  (5) \u8c03\u7528UnmapViewOfFile\u6765\u89e3\u9664\u6587\u4ef6\u6620\u5c04,\u4f20\u5165\u53c2\u6570\u4e3alpMemory<br \/>  (6) \u8c03\u7528CloseHandle\u6765\u5173\u95ed\u5185\u5b58\u6620\u5c04\u6587\u4ef6,\u4f20\u5165\u53c2\u6570\u4e3ahFileMap<br \/>  (7) \u8c03\u7528CloseHandle\u6765\u5173\u95ed\u6587\u4ef6,\u4f20\u5165\u53c2\u6570\u4e3ahFile<br \/>\u4f8b\u7a0b: &#8230;&#8230;&#8230;&#8230;&#8230;.<\/p>\n<p>3\u4f7f\u7528\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u5728\u8fdb\u7a0b\u95f4\u5171\u4eab\u6570\u636e<br \/>\u8fdb\u7a0b\u95f4\u5171\u4eab\u6570\u636e\u7684\u6b65\u9aa4\u5982\u4e0b:<br \/>  (1) \u8c03\u7528OpenFileMapping\u6253\u5f00\u4e00\u4e2a\u547d\u540d\u7684\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u5bf9\u8c61,\u5f97\u5230hFileMap,\u6253\u5f00\u6210\u529f\u8df3\u5230(3),\u5426\u5219\u8868\u793a\u6b64\u7a0b\u5f0f\u662f\u7b2c\u4e00\u4e2a\u526f\u672c,\u7ee7\u7eed\u6267\u884c\u6b65\u9aa4(2)<br \/>  (2) \u8c03\u7528CreateFileMapping\u51fd\u6570\u521b\u5efa\u4e00\u4e2a\u547d\u540d\u7684\u5185\u5b58\u6620\u5c04\u5bf9\u8c61,\u5f97\u5230hFileMap<br \/>  (3) \u8c03\u7528MapViewOfFile\u51fd\u6570\u6620\u5c04\u5bf9\u8c61\u7684\u4e00\u4e2a\u89c6\u56fe,\u5f97\u5230lpMemory<br \/>  (4) \u7528\u8be5\u6307\u9488\u6765\u8bfb\u5199\u5171\u4eab\u7684\u5185\u5b58\u533a\u57df.<br \/>  (5) \u8c03\u7528UnmapViewOfFile\u6765\u89e3\u9501\u89c6\u56fe\u6620\u5c04,\u4f20\u5165\u53c2\u6570\u4e3alpMemory<br \/>  (6) \u8c03\u7528CloseHandle\u6765\u5173\u95ed\u5185\u5b58\u6620\u5c04\u6587\u4ef6,\u4f20\u5165\u53c2\u6570\u4e3ahFileMap<br \/>\u4f8b\u7a0b: &#8230;&#8230;&#8230;&#8230;&#8230;.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528\u5185\u5b58\u6620\u5c04\u6587\u4ef61.\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u51fd\u6570\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u5305\u62ec:CreateFileMapping,OpenFileMa [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"class_list":["post-72","post","type-post","status-publish","format-standard","hentry","category-12"],"_links":{"self":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/posts\/72","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=72"}],"version-history":[{"count":0,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/posts\/72\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=72"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=72"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=72"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}