Munmap (remove memory ing)

Munmap

Munmap (remove memory ing)

Related Function MMAP

Header file # include <unistd. h>

# Include <sys/Mman. h>

Defines the int munmap (void * Start, size_t length) function );

Function Description: munmap () is used to cancel the ing memory start address specified by the start parameter, and the length parameter is the memory size to be canceled. When the process ends or the exec function is used to execute otherProgramThe ing memory is automatically removed, but the ing is not removed when the corresponding file description is disabled.

If the returned value is successfully unbound from the ing, 0 is returned. Otherwise,-1 is returned. The error cause is found in errno.CodeThe START or length parameter is invalid.

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