signal function

// Customwnd. h# Ifndef _ custom_window_h __# DEFINE _ custom_window_h __# Include # Include # Include # Include Class customwnd: Public qwidget{Q_object // If You Want to customize the slot and message, you must call this macro here. Otherwise,

Lien0000342014-11-05 Similar to the signal function, the sigaction function is used to set the signal processing function. This function is used to replace signal functions used in earlier versions of UNIX. In earlier versions of UNIX, after the

http://blog.csdn.net/muge0913/article/details/7331129To process a signal, you need to give the processing function called by the system when this signal occurs. The corresponding processing function can be registered for a specific signal (except

Signal ListSIGABRT process stops running 6sigalrm warning Clock SIGFPE computation exception sighup system hangs Sigill illegal instruction SIGINT Terminal Interrupt 2 SIGKILL Stop process

1. The process has two components, a process kernel object and an address space. Threads also have two components: A kernel object that is a thread that the operating system uses to manage threads. The system also uses kernel objects to

#define declare_waitqueue (name, tsk) / wait_queue_t name =__waitqueue_initializer (name , tsk) #define __waitqueue_initializer (Name,tsk) {task: tsk, task_list: { Null,null}, __waitqueue_debug_ini (name)} Reference:

Often confusing two signals are SIGCLD and SIGCHLD, the signal SIGCLD originated from system V, the meaning of the signal and from the BSD signal sigchld inconsistent. The posix.1 signal is also known as SIGCHLD. The semantics of the signal sigchld

Createthread is a win 32api function, and _ beginthread is a CRT (C Run-Time) function. They are all functions created to implement multiline city, and they have the same usage method, the same parameter list. But what are their differences? In

Createthread is a win 32api function, and _ beginthread is a CRT (C Run-Time) function. They are all functions created to implement multiline city, and they have the same usage method, the same parameter list. But what are their differences? In

Linux C Programming learning-signal processing and linux programming Signal Processing Signal processing is a special feature of linux programs. Use signal processing to simulate the interrupt function of the operating system. To use the signal

UNIX advanced environment programming (13) signal, unix programming 13 Signal The signal is Soft Interrupt. Signals provide an asynchronous way to process events. For example, you can press the End Process key on the terminal to terminate a process

The sigaction function is used to check or modify the processing actions associated with the specified signal.(Or execute these two operations at the same time ). #include sigaction( signo, sigaction *restrict act, sigaction *- The signo

One, what is the signal With Windows we know that when we do not end a program properly, we can force the task Manager to end the process, but how does this actually happen? The same functionality is done on Linux by generating signals and

To process a signal, you need to give the handler function that the system calls when this signal occurs. The corresponding handler function can be registered for a particular signal (excluding Sigkill and sigstop signals). After registering a

Http://www.cnblogs.com/linshui91/archive/2010/09/29/1838770.htmlI. Overview of inter-process communicationProcess communication has some of the following purposes:A, data transfer: A process needs to send its data to another process, the amount of

The basic concept of signal Each signal has a number and a macro definition name that can be signal.h found in. Use the kill -l command to view the list of signals defined in the system: 1-31 is a normal signal; 34-64 is a live signal. All

Object-Oriented Programming in C Language The object-oriented language is closer to the human way of thinking, which greatly reduces the complexity of the code and improves the readability and maintainability of the Code, the traditional C code can

Many readers have never used or heard of exception handling in C language before, and the impression is that C ++ or Java is only available. How can C language handle exceptions? Of course, it is estimated that at the University, for example, the

Organized from Network Unix IPC includes: pipelines, named pipelines (FIFO), and signals (Signal)   Pipeline (pipe) Pipelines can be used for communications between kinship-related processes. Famous pipelines overcome the restriction that pipelines

The path to Qt learning 2: The Path to qt LearningI. Reasons for the article Teacher bean has a very good Qt tutorial, but only the online version. So I used this to take notes and don't read any text ~~Ii. Reading Notes 1. Qt learning 2 (2): Qt