cli

Section: Kernel Functions (9)
Updated: $Date:$
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NAME

cli, sti - disable/enable interrupts  

SYNOPSIS

#include <asm/system.h>

extern void cli()
extern void sti()  

DESCRIPTION

The cli function causes interrupts to be blocked on the host, so that following critical code may run uninterrupted. The sti function enables interrupts again.

Although it is possible to use cli/sti pairs to protect critical code, it is best to use cli with the save_flags macro. See save_flags (9).  

RETURN VALUE

none  

AVAILABILITY

Linux 1.0+  

SEE ALSO

save_flags(9)

include/asm-*/system.h  

AUTHOR

Stephen Williams (steve@icarus.com)  

BUGS

The i386 ancestry of the names can be slightly confusing.


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
AVAILABILITY
SEE ALSO
AUTHOR
BUGS
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