Counterpart to g_once_init_enter(). Expects a location of a static
0-initialized initialization variable, and an initialization value
other than 0. Sets the variable to the initialization value, and
releases concurrent threads blocking in g_once_init_enter() on this
initialization variable.
While location has a volatile qualifier, this is a historical artifact and
the pointer passed to it should not be volatile.
Parameters
location: any
location of a static initializable variable containing 0
Counterpart to
g_once_init_enter(). Expects a location of a static 0-initialized initialization variable, and an initialization value other than 0. Sets the variable to the initialization value, and releases concurrent threads blocking ing_once_init_enter()on this initialization variable.While
locationhas avolatilequalifier, this is a historical artifact and the pointer passed to it should not bevolatile.