NAME

smtx_init — initialize a spinlock

SYNOPSIS

library “threads”
#include <threadse.h>

int
smtx_init(smtx_t *s, int type);

DESCRIPTION

The function smtx_init() initializes a spinlock with the given type.

The type argument can be either of

smtx_private

the spinlock is not shared among child processes.

smtx_shared

the spinlock is shared among child processes. This is not supported on MacOS.

RETURN VALUES

Upon success smtx_init() returns thrd_success, otherwise thrd_error will be returned.

SEE ALSO

smtx_destroy(3) smtx_lock(3) smtx_trylock(3) smtx_unlock(3)

HISTORY

The smtx_init() 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>