class Object::Atomic

Public Class Methods

new(p1 = v1) click to toggle source

static VALUE ir_initialize(int argc, VALUE* argv, VALUE self) {
    VALUE value = Qnil;
    if (rb_scan_args(argc, argv, "01", &value) == 1) {
        value = argv[0];
    }
    DATA_PTR(self) = (void *) value;
    return Qnil;
}

Public Instance Methods

compare_and_set(p1, p2) click to toggle source

static VALUE ir_compare_and_set(volatile VALUE self, VALUE expect_value, VALUE new_value) {
#if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1050
    if (OSAtomicCompareAndSwap64(expect_value, new_value, &DATA_PTR(self))) {
        return Qtrue;
    }
#elif HAVE_GCC_CAS
    if (__sync_bool_compare_and_swap(&DATA_PTR(self), expect_value, new_value)) {
        return Qtrue;
    }
#else
#error No CAS operation available for this platform
#endif
    return Qfalse;
}

compare_and_swap(p1, p2) click to toggle source

static VALUE ir_compare_and_set(volatile VALUE self, VALUE expect_value, VALUE new_value) {
#if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1050
    if (OSAtomicCompareAndSwap64(expect_value, new_value, &DATA_PTR(self))) {
        return Qtrue;
    }
#elif HAVE_GCC_CAS
    if (__sync_bool_compare_and_swap(&DATA_PTR(self), expect_value, new_value)) {
        return Qtrue;
    }
#else
#error No CAS operation available for this platform
#endif
    return Qfalse;
}

get() click to toggle source

static VALUE ir_get(VALUE self) {
    return (VALUE) DATA_PTR(self);
}

get_and_set(p1) click to toggle source

static VALUE ir_get_and_set(VALUE self, VALUE new_value) {
    VALUE old_value;
    old_value = (VALUE) DATA_PTR(self);
    DATA_PTR(self) = (void *) new_value;
    return old_value;
}

set(p1) click to toggle source

static VALUE ir_set(VALUE self, VALUE new_value) {
    DATA_PTR(self) = (void *) new_value;
    return new_value;
}

swap(p1) click to toggle source

static VALUE ir_get_and_set(VALUE self, VALUE new_value) {
    VALUE old_value;
    old_value = (VALUE) DATA_PTR(self);
    DATA_PTR(self) = (void *) new_value;
    return old_value;
}

value() click to toggle source

static VALUE ir_get(VALUE self) {
    return (VALUE) DATA_PTR(self);
}

value=(p1) click to toggle source

static VALUE ir_set(VALUE self, VALUE new_value) {
    DATA_PTR(self) = (void *) new_value;
    return new_value;
}