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stack_getbounds

Section: Standard C Library Functions (3C)
Updated: 18 Jul 2002
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NAME

stack_getbounds - retrieve stack boundaries  

SYNOPSIS

#include <ucontext.h>

int stack_getbounds(stack_t *sp);  

DESCRIPTION

The stack_getbounds() function retrieves the stack boundaries that the calling thread is currently operating on. If the thread is currently operating on the alternate signal stack, this function will retrieve the bounds of that stack.

If successful, stack_getbounds() sets the ss_sp member of the stack_t structure pointed to by sp to the base of the stack region and the ss_size member to its size (maximum extent) in bytes. The ss_flags member is set to SS_ONSTACK if the calling thread is executing on its alternate signal stack, and zero otherwise.  

RETURN VALUES

Upon successful completion, stack_getbounds() returns 0. Otherwise, -1 is returned and errno is set to indicate the error.  

ERRORS

The stack_getbounds() function will fail if:

EFAULT The sp argument does not refer to a valid address.

 

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPEATTRIBUTE VALUE
Interface StabilityEvolving
MT-LevelAsync-Signal-Safe

 

SEE ALSO

getustack(2), sigaction(2), sigaltstack(2), stack_setbounds(3C), attributes(5)


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUES
ERRORS
ATTRIBUTES
SEE ALSO

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Time: 02:37:22 GMT, October 02, 2010