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How is allocated memory handled when kill command for a process is given?

原文 2014-09-21 17:09:27 5 1 c++/ unix/ operating-system

Suppose I am running my application.During this in my code memory allocation has taken place for various objects . Now i execute a kill command on my unix terminal for the process. In that case how does all the memory deallocation process takes place ? Is this handled entirely by the operating system by deallocating the entire memory for the process ?

1 answers

In general, at process termination, all resources allocated by this process are freed by operating system. (see 3.3.2 Operating System Concepts by Abraham Silberschatz , Peter B. Galvin, Greg Gagne http://www.amazon.com/Operating-System-Concepts-Abraham-Silberschatz/dp/0470128720 )

The kill command does not "kill" process, but sends signal to it. If the signal is SIGKILL (kill -9 PID) you can do nothing. Process is killed unconditionally. If signal is SIGTERM (default), you can serve it or ignore it. See: http://en.wikipedia.org/wiki/Unix_signal

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Related Question Does the force kill command (kill -9) in linux cleanup the dynamically allocated memory with new operator in C++ application? Is it true that when memory is allocated into a process in Windows, it always triggers a page fault? How and when is the memory of a global or static array allocated? Linux process allocated memory usage How references are handled in memory virtual memory and physical memory of the process will raise when data was allocated and released in different thread How is memory allocated for a string? Fill allocated memory with data from another process When to delete dynamically allocated memory How is memory allocated in constructor released when the constructor throws an exception?

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How is allocated memory handled when kill command for a process is given?

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solution1 3 2014-09-21 17:30:05

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3 2014-09-21 17:30:05