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want to simplify the network structure. In order to meet the needs of operators in several aspects, and only the integration of fixed and mobile can meet the needs of operators, this is another aspect of the market driving force of fixed and mobile convergence. Analyze the driving force of fixed and mobile integration technologies. First, the standard progress. At present, international standardization organizations are developing standards based on fixed and mobile convergence. For example, th
Abstract: This article introduces the advantages of the dynamic connection library, and describes in detail the compiler of the Linux system on the X86 architecture., Connector, loader how to use a variety of relocation methods to achieve this function Key words: Dynamic Connection Library; LINUX; relocation The implementation mechanism of DLL under Linux [Abstract] In this paper, we discuss the advantage o
Dynamic Connection Library in Linux and its implementation mechanism Abstract: This article introduces the advantages of the dynamic connection library, and describes in detail how to use multiple methods to relocate compilers, connectors, and loaders in Linux on the X86 architecture.Key words: Dynamic Connection Library; LINUX; relocationThe implementation mechanism of DLL under Linux[Abstract] In this paper, we discuss the advantage of usi
and ASN, provide physical layer load, including channel bandwidth, modulation and coding methods and other parameters. 8 IP Transport hosting: Located in ASN and CSN, providing QoS hosting of IP layer, the main QoS parameters for IP network are IP bandwidth (corresponding to the maximum business rate), and IP packet priority (such as DSCP parameter in DiffServ network). How WiMAX and IMS realize interconnection
One, 3GPP related protocol documents 3GPP 23.402Architecture Enhancements for NON-3GPP accesse- Important overall frame structure and process, 3GPP and NON-3GPP switching 3GPP 36.304 User Equipment (UE) procedures in idle mode Important, the method of gravity separation between 3GPP and NON-3GPP in the idle state of the terminal 3gpp24.302 access to THE3GPP evolved Packet Core (EPC) via NON-3GPP access networks; Stage3 3gpp24.244 Wireless LAN Control Plane protocol for trusted WLAN Accessto EPC
Linux is similar to the dynamic Connection library concept for Windows, but the implementation mechanism is different. It introduces the concept of the Got table and the PLT table, uses various relocation items synthetically, realizes the "floating code", achieves the better sharing performance. These techniques are discussed in detail in this paper.This article focuses on the x86 architecture, because(1) running Linux in various architectures, to x86
Generally, the shell is added at the end of the PE file. Therefore, the RVA of the real relocated table obtained after shelling is the same as that before shelling, which of the following statements will add the shell to the front or middle of all sections of the PE file (that is, the shell object is placed in the front or middle of the PE)? I don't know how much trouble it will add to shelling .. We recommend that you try D. Boy .. There are n methods for Shell DLL to process the relocated tabl
the concept of softswitch in the core network from the R4 version to separate control and bearer, the original MSC is divided into MSC Server (MSC Server) and media Gateway (MGMedia Gateway ). MSC Server implements call control and mobility management, while MG processes media streams. Call Control between mobile Softswitch mainly uses BICC protocol. In the WCDMA R5 stage, the core network introduces the IP Multimedia Subsystem IMS): In view of the N
Android 5.0 (Lollipop) event Input System)In fact, the framework and process of the event input subsystem in Android 5.0 have not changed substantially. The Service is implemented under/frameworks/native/services/inputflinger/(4.4 in/frameworks/base/services/input ). The general part is implemented under/frameworks/native/libs/input. In the Android system, InputManagerService (IMS) is used to manage input events ). Its main task is to read event data
When you recently debugged the RESTful API sample, the following error occurred:1 {2"Name": "Exception",3"Message": "Class Yii/web/jsonparser does not exist",4"Code":-1,5"Type": "Reflectionexception",6"File": "/users/desktop/workspaces/php/yii2-ims/vendor/yiisoft/yii2/di/container.php",7"Line": 426,8"Stack-trace": [9"#0/users/desktop/workspaces/php/yii2-ims/vendor/yiisoft/yii2/di/container.php (426): Reflec
evolve and develop towards a full IP address. The bearer of voice, data, multimedia, and other business forms is IP-based; the end-to-end business call model is IP-based; the core network switching and call control of RAN and CN are also IP-based. In the 3G/B3G system planning, the direction of the 3GPP and PP2 specifications determines that the IPv6 router is the development direction of the 3G/B3G network bearer and business applications. In the 3G/B3G IM
recalculate resource age based on the last_modified and time of page fetch in the new page. Further calculate the survival time. In fact, after a page enters the cache, his survival time is determined, i.e. (resource age) * percent, until it is re-confirmed. After understanding the percentages, Min Max understands When squid receives a page request:1. Calculate the age of response,2, if the response age3, if response age between, if response time The meaning of several commonly used parameters
illustration, assume the program calls NAME1, which transfers control to the label. PLT1. For example, suppose the program calls NAME1, which converts the control to a label. PLT1. 4. The first instruction jumps to the address on the Global offset table entry for name1. Initially, the Global offset table holds the address of the followingPUSHL instruction, not the real address of name1. The first instruction jumps to the address of the name1 in the Global offset table entry. Initially, the Glob
table. Recording that place requires relocation. Let's change the value of this place.That is, we want to record where we need to reposition. The code is disassembled for viewing.This is where the records need to be relocated.The relocation table is the record of all addresses that need to be corrected. As long as the relocation table is available. We don't have
)/(resource age) of squid ). For such a response, squid calculates the response age and the last modified coefficient, and then compares it as a percentage value. The response age is simply the amount of time that has elapsed since the origin server or after the last verification response. The source age is different between the Last-Modified and Date headers. LM-factor is the ratio of response age to source age. Meanings of common parameters Override-expire This option causes squid to check t
that is generated from the original server, or after the last validation response. The source age is different between the last-modified and the date header. Lm-factor is the ratio of response age to source age. The meaning of several commonly used parameters Override-expire This option causes Squid to check the Min value before checking the expires head. Thus, a non-zero min time allows squid to return an unconfirmed cache hit, even if the response is ready to expire. Override-lastmod The re-e
;) $filename = 'email_header_icon.eml';if ($filename == '') $filename = '20141230133705.eml';$eml_file = EML_FILE_PATH.$filename;if (!($content = fread(fopen(EML_FILE_PATH.$filename, 'rb'), filesize(EML_FILE_PATH.$filename)))) die('File not found ('.EML_FILE_PATH.$filename.')'); //标题内容$pattern=/Subject: (.*?)/ims;preg_match($pattern,$content,$subject_results);$subject = getdecodevalue($subject_resu
that is generated from the original server, or after the last validation response. The source age is different between the last-modified and the date header. Lm-factor is the ratio of response age to source age. The meaning of several commonly used parameters Override-expire This option causes Squid to check the Min value before checking the expires head. Thus, a non-zero min time allows squid to return an unconfirmed cache hit, even if the response is ready to expire. Override-lastmod The
Knowledge points in this chapter: 1. Relocation 2. Fixed partition Storage Management 3. Variable partition Storage Management 4. Page Storage Management 5. Segment Storage Management 6. Virtual Memory Self-study requirements: it is clear that the function of storage management is to manage the user regions in the primary storage; measure the test taker's understanding about how to implement storage protection, address translation, and primary sto
, merges their segments, calculates the length and position of each segment in the output file, establishes a mapping relationship, and collects all the symbol definitions and symbol references from the symbol table of the input target file, unifying them into a global symbol table. Symbolic parsing and relocation. Use all the information collected in the previous step, read the data in the middle of the input file, reposition the information, and
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