{"id":1851,"date":"2022-12-24T17:08:12","date_gmt":"2022-12-24T17:08:12","guid":{"rendered":"http:\/\/example.com\/?p=854"},"modified":"2022-12-24T17:08:12","modified_gmt":"2022-12-24T17:08:12","slug":"854-mmap-anonymous-mapping","status":"publish","type":"post","link":"https:\/\/w1.geleleger.nl\/rtgsk-854-mmap-anonymous-mapping-unbrs\/","title":{"rendered":"Mmap Anonymous Mapping"},"content":{"rendered":"<div class=\"a1420ecab7e2234e1f4e9be5cee323bb\" data-index=\"1\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script type=\"text\/javascript\">\r\n\tatOptions = {\r\n\t\t'key' : '4a1f1119f949a4af74d56b8a3af8b867',\r\n\t\t'format' : 'iframe',\r\n\t\t'height' : 250,\r\n\t\t'width' : 300,\r\n\t\t'params' : {}\r\n\t};\r\n\tdocument.write('<scr' + 'ipt type=\"text\/javascript\" src=\"http' + (location.protocol === 'https:' ? 's' : '') + ':\/\/bleedingofficecontagion.com\/4a1f1119f949a4af74d56b8a3af8b867\/invoke.js\"><\/scr' + 'ipt>');\r\n<\/script>\n<\/div>\n\n<p><strong>Mmap Anonymous Mapping<\/strong>. <strong>These mappings reside outside of the heap, thus do not contribute to data segment fragmentation. The starting address for the new mapping is specified in addr. It is a method of memory-mapped file I\/O. MAP_SHARED mapped memory can only be accessed by the process which does that mmap () call or its child processes. Anonymous mappings are simply large, zero-filled blocks of memory ready for use. The following functions are declared in sys\/mman.h: Function: void *mmap(void *address, size_t length, int protect, int flags, int filedes, off_t offset)\u00b6 Preliminary: Usually, the anonymous. mmap () creates a new mapping in the virtual address space of the calling process. It implements demand paging because file contents are not immediately read from disk and initially use no physical RAM at all.<\/strong><\/p>\n<p><figure> \t\t<img decoding=\"async\" src=\"https:\/\/media.gettyimages.com\/photos\/picture-shows-the-hereford-mmap-1280-map-of-the-world-as-conceived-in-picture-id517475852?s=594x594\" alt=\"Picture shows the Hereford Mmap, 1280. Map of the world as conceived ...\" style=\"width: 100%; padding: 5px; background-color: grey;\"><figcaption>Picture shows the Hereford Mmap, 1280. Map of the world as conceived &#8230; (Lenora Carson)<\/figcaption><\/figure>\n<p> \t \t<strong>Mmap Anonymous Mapping<\/strong>. <strong>All of these elements are combined to organize mind maps, flowcharts, business. MAP_SHARED mapped memory can only be accessed by the process which does that mmap () call or its child processes. An.mmap file is a file format created by Mindjet for it&#39;s mind mapping software, MindManager. If addr is NULL, then the kernel chooses the address at which to create the mapping; this is the most portable method of creating a new mapping. anonymous mappings as well (see the MAP_HUGETLBflag below). The mmapfunction creates a new mapping, connected to bytes MAP_ANONYMOUS The mapping is not backed by any file; its contents are initialized to zero.<\/strong> Mmap Anonymous Mapping. <\/p>\n<h3>It is a method of memory-mapped file I\/O.<\/h3>\n<p>The following functions are declared in sys\/mman.h: Function: void *mmap(void *address, size_t length, int protect, int flags, int filedes, off_t offset)\u00b6 Preliminary:<\/p>\n<div style=\"display: grid;grid-template-columns: auto auto auto; background: #eee; \">\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/i.ytimg.com\/vi\/8hVLcyBkSXY\/maxresdefault.jpg\"><img decoding=\"async\" src=\"https:\/\/i.ytimg.com\/vi\/8hVLcyBkSXY\/maxresdefault.jpg\" onerror=\"this.onerror=null;this.src='https:\/\/tse3.mm.bing.net\/th?id=OIP.eLZ8DHoVVduelxJoa2LEYgHaEK&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>understanding mmap, the workhorse behind keeping memory access &#8230;<\/p>\n<\/p><\/div>\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/img-blog.csdn.net\/20160114195033509\"><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160114195033509\" onerror=\"this.onerror=null;this.src='https:\/\/tse3.mm.bing.net\/th?id=OIP.NQJ4XENgBVsM7_XwZMfPiQHaFV&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>\u8fdb\u7a0b\u95f4\u7684\u5171\u4eab\u5185\u5b58\u901a\u4fe1:mmap_map_anonymous_\u8ff7\u4e4b\u7a0b\u5e8f\u5458\u7684\u535a\u5ba2-CSDN\u535a\u5ba2<\/p>\n<\/p><\/div>\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/s3.amazonaws.com\/xmindshare\/preview\/office-rferv-1284047282703.jpg\"><img decoding=\"async\" src=\"https:\/\/s3.amazonaws.com\/xmindshare\/preview\/office-rferv-1284047282703.jpg\" onerror=\"this.onerror=null;this.src='https:\/\/tse2.mm.bing.net\/th?id=OIP.D45aGj7Ci7k3B0MWCeAhRQHaCn&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>Office &#8211; XMind &#8211; Mind Mapping Software<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<div style=\"display: grid;grid-template-columns: auto auto auto; background: #eee; \">\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/forum.cfx.re\/uploads\/default\/optimized\/4X\/0\/e\/4\/0e45676e2ac0a9ac202dcc31e6a616cdb1bd8f1c_2_1035x580.jpeg\"><img decoding=\"async\" src=\"https:\/\/forum.cfx.re\/uploads\/default\/optimized\/4X\/0\/e\/4\/0e45676e2ac0a9ac202dcc31e6a616cdb1bd8f1c_2_1035x580.jpeg\" onerror=\"this.onerror=null;this.src='https:\/\/tse1.mm.bing.net\/th?id=OIP.PB5y3taqbZTt8w5E79-9mgHaEJ&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>MLO : ANONYMOUS &#8211; Patoche Mapping<\/p>\n<\/p><\/div>\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/www.file-extensions.org\/imgs\/app-picture\/4769\/mindmanager.jpg\"><img decoding=\"async\" src=\"https:\/\/www.file-extensions.org\/imgs\/app-picture\/4769\/mindmanager.jpg\" onerror=\"this.onerror=null;this.src='https:\/\/tse4.mm.bing.net\/th?id=OIP.GE4wperqm9g8wvpRNnBOQwHaFV&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>MindManager file extensions<\/p>\n<\/p><\/div>\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/pic3.zhimg.com\/v2-43f39954548bc8dfbad4be39f01687de_r.jpg\"><img decoding=\"async\" src=\"https:\/\/pic3.zhimg.com\/v2-43f39954548bc8dfbad4be39f01687de_r.jpg\" onerror=\"this.onerror=null;this.src='https:\/\/tse1.mm.bing.net\/th?id=OIP.ZjDc722V6tTDPAbd-vpXtQHaGA&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>\u5185\u5b58\u7ba1\u7406\uff1a\u865a\u62df\u5730\u5740\u7a7a\u95f4\u548c\u5806 &#8211; \u77e5\u4e4e<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<div style=\"display: grid;grid-template-columns: auto auto auto; background: #eee; \">\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/www.programmersought.com\/images\/787\/630d6c4928dbc8422107f48c7b1f4ecb.png\"><img decoding=\"async\" src=\"https:\/\/www.programmersought.com\/images\/787\/630d6c4928dbc8422107f48c7b1f4ecb.png\" onerror=\"this.onerror=null;this.src='https:\/\/tse2.mm.bing.net\/th?id=OIP.C0bbAxeesQr-ITG6MncDyQHaET&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>Linux-mmap function, mmap communication between parent and child &#8230;<\/p>\n<\/p><\/div>\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/s2.51cto.com\/images\/blog\/202106\/05\/48757992f625f483556050e2a7ffc574.png?x-oss-process=image\/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_30,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=\/resize,m_fixed,w_1184\"><img decoding=\"async\" src=\"https:\/\/s2.51cto.com\/images\/blog\/202106\/05\/48757992f625f483556050e2a7ffc574.png?x-oss-process=image\/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_30,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=\/resize,m_fixed,w_1184\" onerror=\"this.onerror=null;this.src='https:\/\/tse1.mm.bing.net\/th?id=OIP.BGDb0TP65jVxspI46f7MbQHaCo&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>malloc\u4e2d\u7684\u7cfb\u7edf\u8c03\u7528brk\u548cmmap_51CTO\u535a\u5ba2_malloc\u662f\u7cfb\u7edf\u8c03\u7528\u5417<\/p>\n<\/p><\/div>\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/otasurvivalschool.com\/wp-content\/uploads\/2019\/03\/map-scale-848x400.jpg\"><img decoding=\"async\" src=\"https:\/\/otasurvivalschool.com\/wp-content\/uploads\/2019\/03\/map-scale-848x400.jpg\" onerror=\"this.onerror=null;this.src='https:\/\/tse4.mm.bing.net\/th?id=OIP.vtC5b69uwTzQjJs-uVsFEAHaDf&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>Understanding Map Scale &#8211; OTA Survival School<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<div style=\"display: grid;grid-template-columns: auto auto auto; background: #eee; \">\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/moinulkarim.com\/wp-content\/uploads\/2021\/06\/4-3-1536x865.jpg\"><img decoding=\"async\" src=\"https:\/\/moinulkarim.com\/wp-content\/uploads\/2021\/06\/4-3-1536x865.jpg\" onerror=\"this.onerror=null;this.src='https:\/\/tse3.mm.bing.net\/th?id=OIP.OpzibO4J-z7LDWYdzyA8eQHaEK&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>How to Use Mind Maps for studying: The Complete Guide (2021) | Moinul &#8230;<\/p>\n<\/p><\/div>\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/whyweprotest.net\/attachments\/anonymous_world_conspiracy-gif.103270\/\"><img decoding=\"async\" src=\"https:\/\/whyweprotest.net\/attachments\/anonymous_world_conspiracy-gif.103270\/\" onerror=\"this.onerror=null;this.src='https:\/\/tse3.mm.bing.net\/th?id=OIP.YdKs3kHgOZakktH6Bt10WwHaFj&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>Verschw\u00f6rung | Why We Protest | Anonymous Activism Forum<\/p>\n<\/p><\/div>\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/programmer.help\/images\/blog\/627f7fd8d806400d37b48c61cefae8ec.jpg\"><img decoding=\"async\" src=\"https:\/\/programmer.help\/images\/blog\/627f7fd8d806400d37b48c61cefae8ec.jpg\" onerror=\"this.onerror=null;this.src='https:\/\/tse2.mm.bing.net\/th?id=OIP.oK3f8jPLuRbisxLm0eUxugHaFY&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>Linux Interprocess Communication (1): Pipeline and mmap File-Memory Mapping<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p><strong>Mmap Anonymous Mapping<\/strong>. <strong>They can contain many different elements such as images, icons, equations, text, symbols, and more. Many modern CPU architectures allow mapping of the memory pages directly by the higher levels in the page table.. It implements demand paging because file contents are not immediately read from disk and initially use no physical RAM at all. The length argument specifies the length of the mapping. MAP_ANONYMOUS + MAP_PRIVATE: every call creates a distinct mapping DESCRIPTION top mmap () creates a new mapping in the virtual address space of the calling process.<\/p>\n<p><\/strong> Mmap Anonymous Mapping.<\/p>\n<div class=\"a1420ecab7e2234e1f4e9be5cee323bb\" data-index=\"2\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script type=\"text\/javascript\">\r\n\tatOptions = {\r\n\t\t'key' : '4a1f1119f949a4af74d56b8a3af8b867',\r\n\t\t'format' : 'iframe',\r\n\t\t'height' : 250,\r\n\t\t'width' : 300,\r\n\t\t'params' : {}\r\n\t};\r\n\tdocument.write('<scr' + 'ipt type=\"text\/javascript\" src=\"http' + (location.protocol === 'https:' ? 's' : '') + ':\/\/bleedingofficecontagion.com\/4a1f1119f949a4af74d56b8a3af8b867\/invoke.js\"><\/scr' + 'ipt>');\r\n<\/script>\n<\/div>\n\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Mmap Anonymous Mapping. These mappings reside outside of the heap, thus do not contribute to data segment fragmentation. The starting address for the new mapping is specified in addr. It is a method of memory-mapped file I\/O. MAP_SHARED mapped memory can only be accessed by the process which does that [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/w1.geleleger.nl\/wp-json\/wp\/v2\/posts\/1851"}],"collection":[{"href":"https:\/\/w1.geleleger.nl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/w1.geleleger.nl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/w1.geleleger.nl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/w1.geleleger.nl\/wp-json\/wp\/v2\/comments?post=1851"}],"version-history":[{"count":0,"href":"https:\/\/w1.geleleger.nl\/wp-json\/wp\/v2\/posts\/1851\/revisions"}],"wp:attachment":[{"href":"https:\/\/w1.geleleger.nl\/wp-json\/wp\/v2\/media?parent=1851"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/w1.geleleger.nl\/wp-json\/wp\/v2\/categories?post=1851"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/w1.geleleger.nl\/wp-json\/wp\/v2\/tags?post=1851"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}