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Directory Problem SGI Version Space Configurator-std::alloc First-level Space Configurator Second-level Space Configurator Refill, Chunkalloc functions Finally, the Simple_alloc interface that the Configurator encapsulates Problem In our daily writing C + + programs, we often use our STL standar
Statement: Source code and "STL Source Analysis" (Houtie)Stl:C + + Standard Template Library, high versatility.Common data structures are encapsulated.Provides common general-purpose algorithms.STL six major components:Container algorithm iterator Faux function (function object) Adapter ConfiguratorThe role of the Space Configurator:1. Improve the code reuse rate, the function of modularization.2. Reduce memory fragmentation issues.For example, we lis
1. SGI Special Space Configurator, Std::alloc SGI STL's configurator differs from the standard specification by its name alloc rather than allocator, and does not accept any parameters. We are accustomed to the C + + memory configuration operation and release operations as follows: Class Foo {...}; foo* pf = new Foo; Configure the memory, then construct the object Delete pf;//Refactor the object and then f
When we were writing programs, we needed memory, and our first response was malloc, but it was so easy to make the inner slices unusable.The space adapter is mentioned in the STL, which is divided into two levels: the first-level space-appropriate configurator and the two-level space Configurator. The first-level space adapter is a simple wrapper over malloc, and its internal allocate () and reallocate () a
One, the Space Configurator standard interfaceSee "STL Source Code Anatomy" Chapter II-2.1.Ii. SGI Space Configurator with sub-configuration forceSGI STL's Configurator differs from the standard specification by its name alloc rather than allocator, and does not accept any parameters (although SGI also defines a configurator
The spatial configurator (allocator) Space Configurator, as I understand it, is a C + + STL memory management component (including memory application and release); Of course, not only memory, but also to the hard disk to request space; I mainly look at the configuration and release of memory ("Configuration" should be "application" meaning). STL's philosophy of this design mainly includes the following four
See more details: https://zcheng.ren/2016/08/16/STLAllocater/In the implementation of STL, the Space Configurator is the most important one, because the whole STL operation object is placed in the container, how to allocate space for the container so that the container can store the data. At this time we need to configure the Alloc for processing.What does the space Configurator alloc include?The Space
Space Configurator From the implementation of the STL, the first thing to understand is the space Configurator, because the entire STL operation objects are placed in the container, and the container needs a certain allocation of space to place data. standard interface for Space Configurator Standard interface, some typedef allocator::value_type; Allocator::p oi
Configurator class Introduction and API Explanation 1.Configurator class introduction 1) To set the default delay of the script 2) function A. Adjustable default time interval between two analog actionsB. Input time interval for adjustable input textC. Adjustable time interval for each scroll 2. Related APIs Delay term Default delay Function description Api
The following describes the memory space configurator implemented in STL. Key points: 1) Considering the memory fragmentation problem caused by small blocks, a dual-layer Configurator is designed. When the configuration block exceeds bytes, the first-level Configurator is called. The first-level configurator dire
All STL operands (all values) are stored inside the container, and the container needs to allocate space to hold the data. Why not say allocator is a memory configurator but a space configurator, because space is not just memory, it can also be disk or other secondary storage media. Here we mainly discuss memory configuration.SGI STL The default space configurator
"// implement servicefactory_t int servicefactory_t: Init (INT argc, ace_tchar * argv []) {ace_debug (lm_info, "(% p | % t) Service initialization completed/N"); Return 0;} int servicefactory_t: Info (ace_tchar ** STRP, size_t length) const {ace_debug (lm_info, "servicefactory_t: Info ()/n"); Return 0 ;}int servicefactory_t: Fini (void) {return 0 ;} 5. service configuration file SVC. confDynamic ivr86service service_object * glivr86service: _ make_servicefactory_t () Active6. Running result5. A
After a long time, I finally saw the attention picture presented by the ACE service configurator framework in Linux. This framework is truly shocking. This example replaces the interface functions used by the service without shutting down the service, and the service provider constantly reads SVC in the timer. conf configuration file content, and then reconfig service. It is not a clever way to do this in the timer, but it vividly shows the serviceThe
Need test environment, install EPM11.1.1.3 to CentOS 5.6When running Configurator (/app/hyperion/common/config/9.5.0.0, the card is stuck in [starting Weblogic 9 Admin Server].After a long time (about 15 minutes), come out with a failed report.So look configtool.log, found the problem is because Configurator didn't start adminserver.Try to start it yourself manually, run/app/hyperion/deployments/weblogic9/s
To implement the SQL Server 2005 remote Connection database, we need to use the perimeter configurator that comes with the sql05, and here are some of the configuration descriptions:First we want to open the Sql05 perimeter configurator, for example:Once opened, we will now make the relevant configuration for it:Click on the "surface Area configuration for services and connections", such asNext is the optio
I. SGI standard space Configurator, Std::allocatorSGI also defines a configurator that complies with some of the criteria named allocator, but it does not use it itself, nor does it recommend that we use it, mainly because it is inefficient.It just puts the C + + operator:: operator new and:: operator delete as a simple wrapper.Second, SGI special Space Configurator
Sgistl default use of the two-level space Configurator, when the need to configure the chunk is greater than bytes when SGI STL calls the first-level space Configurator, the allocate function of the first-level space Configurator allocates memory directly using malloc, and the DEALLOCATE function frees memory directly using free. SGI STL calls a level two space
Memory configurator (allocator) and stlallocator of the STL Library I am learning. If there are any mistakes, please give me more advice. According to our constant understanding, we will make changes. The changes will be retained. recording errors is the greatest improvement. Sorry! SGI space configurator with sub-configuration force (SGI is a version of STL, and there are other versions) Here, I will not p
Introduction People often say, do not rebuild from the wheel, to stand on the shoulders of giants. In the face of these STL components that play the role of the wheel, is it necessary to delve into the design principles or implementation details? The answer varies from person to person. From an application perspective, you do not need to explore the implementation details (however, to a considerable extent, understand the underlying implementation of the practical use of the absolute help). Fro
List library functions in the compilation still have a lot of problems, in the compilation of the source code, some of the content has not been understood, in the later study will be more in-depth study, I hope you can make suggestions and criticisms of my problems, thank you ~The specific code is as follows:#include Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced. Implementation of the "C++/stl" list (with Space
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