linux os list

Describe the implementation of hash lists in the Linux kernel, which is used very much in the Linux kernel hash list.And I later in the software design, it is also very likely to use. Hash lists are, after all, very handy in the search process for data.The Linux kernel's implementation of hash lists is perfect, so it's very necessary to learn.In the implementatio

));}) description : Gets a pointer to the entire struct variable, based on the pointer (PTR) of the domain member variable (member) in the struct (type) variable.typeof (((type *) 0)->member) takes out the variable type of the member member.Const typeof (((type *) 0)->member) *__mptr = (PTR) defines the variable __mptr pointer and assigns PTR to __mptr. After this step, __mptr is a constant pointer to the member data type, which points to the address that PTR points to.(__mptr) (char *) con

Use Linux kernel list-general Linux technology-Linux programming and kernel information in your program. The following is a detailed description. In our daily programs, we often encounter writing linked lists. For c ++ programs, stl provides two templates: list and vector, w

List of recommended books for Linux programming (resend) Shell programmingLinux and Unix shell programming guide Bash: Advanced bash scripting Guide (if you are using the GNU/Debian system, you can use apt-Get install ABS-Guide to install this document) Bash programming-introduction how- Bash man User-level programming books: Advanced Programming in the Unix environment (Second edition of t

Linux kernel link list:A linked list typically consists of two fields: a data field and a pointer field.struct list_head{struct List_head *next,*prev;};A wonderful set of linked list data structures is implemented in include/linux/list.h.The traditional linked list pointer p

request memory will not occur.?? List_empty: Checks if the linked list is empty.?? List_for_each_entry: Iterates through the list and gets the pointer to the outer struct by List_entry.use of the kernel chain list?? First define the structure, the data for CH and grade,ch save the student's name, Grade Save the student's performance.?? Then define one, two, thre

is in use.If the above two steps are not return then it is necessary to the PID bitmap in the PID representation of the 0, for the system to use.An understanding of the above code is prone to problems: (tmp = Pidtype_max;--tmp >= 0;) 201 if (tmp! = Type find_pid (tmp, NR)) 202 return; Why only search other types of hash lists without processing the hash list of the type of PID we just deleted? Because the hash

The development of contact with Linux more and more, rest and relax, inevitably look over the mysterious Linux kernel. See the two-way linked list, I think it is very interesting, this article noted.As a member of many basic data structures, the implementation of the two-way circular linked list in various "textbooks"

Now open source so hot, so that the mouth is not mentioned as if it is not engaged in it, then how to embrace open source? This article is suitable for beginners, such as the great God so far, goto exit!first, how to join the open sourceIn Linux, for example, what does a successful open source project need to do? An open source project, developers are time and spatially dispersed, then how to contact how to discuss each other as a very important and i

The previous blog "Linux kernel source" Two-way list List_head "" In an example of the use of the List_head doubly linked list, only the code of the instance, and there is no list_head linked list of code, considering the eager friends of the strong desire, today List_ The head code is list.h header file paste here, fo