sigint number

signal function and Sigaction structure understanding One, signal function Detailed Description: http://blog.csdn.net/ta893115871/article/details/7475095 #include #include #include /* Sig_ign Ignore/SIG_DFL default, both macros can also be

The signal is associated with a certain process. In other words, a process can determine which signals are handled in the process. For example, a process can ignore some signals and handle only some other signals, and a process can also choose how

1. Signal ConceptA signal is a message (event) that is generated by itself or sent by the process outside the process during its operation. The signal is a hardware interrupt software simulation (soft interrupt). Each signal is represented by an

Today continue to explore the signal-related east, not much to say, is into the subject:The signal is represented in the kernel:The following diagram is used to further describe the state of the signal from generation to delivery (signal blocking

Case:A regular Linux C program that performs several printf operations during execution and redirects stdout to a different file using the Bash Script redirection feature. In the run-time with CTRL + C to terminate the program, found that the

  This article only analyzes the changes in the user stack and kernel stack after the signal is sent to the user program. Without analyzing real-time signals, the entire process is basically the same. Many references , so some code may be different

First, the basic concept1. InterruptionAborts, pauses the currently executing process, and performs other tasks instead.Hard interrupts: interrupts from hardware devicesSoft interrupts: interrupts from other programs2. SignalA signal is a soft

Signal (signals)A signal is a soft interrupt and is a method of handling asynchronous events. In general, the operating system supports many signals. In particular, UNIX, a more important application typically processes signals. UNIX defines a

Linux signal Programming Practice (3) Signal Representation in the kernel (sigaction & sigqueue) Representation of signals in the kernel The processing action of the actually executed signal is called the Delivery, the State between the signal

There are many days did not write a blog, think about it or not to waste time, write something to record their growth or hundred profit without harm. Today is September 17, summer vacation in a game company internship for some time, do things in C +