This article has been migrated to: http://cpp.winxgui.com/cn:gc-allocator-and-boost-object-pool
C ++ memory management revolution (4): boost: object_pool
Xu Shiwei (copyright statement)2007-4-21
This article has been dragging on for a long time. Neutraledevil urged me to continue writing three months ago. For the sake of winxgui integrity, I have been trying to g
Anyway We have introduced the boost::p ool component in the memory pool (mempool) technical details. From the perspective of memory management, this is a traditional mempool component, although there are some improvements (but only performance improvements). But unlike Boost::object_pool, it fits well with the idea I emphasized in C + + memory
Original: http://viml.nchc.org.tw/blog/paper_info.php? Class_id = 1 sub_id = 1 paper_id = 229
For the signals2 function of boost, I explained it in the first article, and listed some of the most simple usage scenarios; in the second articleThe slot's sequential control and zookeeper management are further explained.
In this article, we will give some explanations on how signal/slot operates on objects,
release the resource
Example code:
structdemo_class{ Public:intA, B, C; Demo_class (intx =1,inty =2,intz =3): A (x), B (Y), C (z) {} ~demo_class () {cout "Destruct"intTestobjpool () {object_poolassert(Pl.is_from (P));//malloc was not initialized when it was created assert(p->a!=1|| P->b! =2|| P->c! =3); p = pl.construct ();//Boost comes with construct can only support 3 or less parameter callsp = pl.construct (7,8,9);assert(P->a = =7); ob
interruption, if the information is not what the user wants, it will backfire.More and more video service providers are fully aware that smartphones are a new channel of media content dissemination, and they are fully conscious of the importance of their operations to smartphone users. Effectively combine push services to alert users to scheduled TV shows, real-time news, last-minute movies or the latest popular videos. Even if the user does not immediately jump to view the page because of othe
class click event is based on the current element's mouse movement range, and if so, triggers the already registered tap event
Then the Fastclick processing comparison is basically consistent with the zepto, but different
Fastclick is to bind an event to the element you pass (typically Document.body)
② The Click event of the DOM element is manually triggered after the Touchstart and Touchend (will manually get the current click el) If the class click eventSo the Click event i
of four components: the simplest pool, the object_pool of the allocation class instance, and the singleton_pool of the single-piece memory pool, which can be used for pool_alloc of the standard library ..
Pool: it can only be used as a memory pool for common data types such as int and double. It cannot be used for complex classes and objects because it only allocates memory and does not call constructors, in this case, we need to use object_pool;Memory Man
Now we use newlisp to write a tcp client for testing.Program:
Chenshu @ chenshu-Beijing :~ $ Newlispnewlisp v.10.4.5 64-bit on Linux IPv4/6 UTF-8 libffi, execute 'newlisp-H' for more info.> (set 'socket (net-Connect "localhost" 8888) 3> (net-send socket "")
The aboveCodeExplanation:
1. (net-connect...) is used to connect to the local port 8888. The returned socket file is assigned to the socket variable.
2. (net-send can send a string "a" to the connection represented by socket"
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