NAME

smtx_lock — acquire a spinlock

SYNOPSIS

library “threads”
#include <threadse.h>

int
smtx_lock(smtx_t *s);

DESCRIPTION

The function smtx_lock() will acquire a spinlock s. If the spinlock is already acquired it will loop until it can acquire the spinlock.

If the current thread already has a lock on the given spinlock the behavior is undefined.

RETURN VALUES

Upon success smtx_lock() will return thrd_success. In case of error thrd_error will be returned.

SEE ALSO

smtx_init(3) smtx_destroy(3) smtx_unlock(3) smtx_trylock(3)

HISTORY

The smtx_lock() function first appeared in the Adelsbach Enhanced Threading Library. MacOS support was added in version 1.0.1 using an implementation with atomic variables.

AUTHORS

Jan Adelsbach <jan@jadelsbach.de>