void
hash_reserve(hash *ths, counter cap) {
counter acap;
bin *bins;
#undef update_cap
#define update_cap(X) \
do { acap = (X); if (cap < acap) { cap = acap; } } while(0)
update_cap(ths->lower_limit.capacity);
update_cap(HASH_MIN_CAPACITY);
update_cap((HASH_MIN_MEMORY + sizeof(bin) - 1)/sizeof(bin));
// TODO
// if (cap <= ths->capacity) { return; }
//
// bins = ths->bins;
// REALLOC(bins, cap);
// ths->bins = bins;
// for(
// acap = ths->capacity,
// bins = ths->bins + ths->capacity;
//
// acap < cap;
//
// ++bins,
// ++acap
// ) {
// bins->occupied
// }
// ths->capacity = cap;
#undef update_cap
}
static ssize_t show_cap(struct device *dev,
struct device_attribute *devattr,
char *buf)
{
struct acpi_device *acpi_dev = to_acpi_device(dev);
struct acpi_power_meter_resource *resource = acpi_dev->driver_data;
mutex_lock(&resource->lock);
update_cap(resource);
mutex_unlock(&resource->lock);
return sprintf(buf, "%llu\n", resource->cap * 1000);
}
/* Handle ACPI event notifications */
static void acpi_power_meter_notify(struct acpi_device *device, u32 event)
{
struct acpi_power_meter_resource *resource;
int res;
if (!device || !acpi_driver_data(device))
return;
resource = acpi_driver_data(device);
mutex_lock(&resource->lock);
switch (event) {
case METER_NOTIFY_CONFIG:
free_capabilities(resource);
res = read_capabilities(resource);
if (res)
break;
remove_attrs(resource);
setup_attrs(resource);
break;
case METER_NOTIFY_TRIP:
sysfs_notify(&device->dev.kobj, NULL, POWER_AVERAGE_NAME);
update_meter(resource);
break;
case METER_NOTIFY_CAP:
sysfs_notify(&device->dev.kobj, NULL, POWER_CAP_NAME);
update_cap(resource);
break;
case METER_NOTIFY_INTERVAL:
sysfs_notify(&device->dev.kobj, NULL, POWER_AVG_INTERVAL_NAME);
update_avg_interval(resource);
break;
case METER_NOTIFY_CAPPING:
sysfs_notify(&device->dev.kobj, NULL, POWER_ALARM_NAME);
dev_info(&device->dev, "Capping in progress.\n");
break;
default:
WARN(1, "Unexpected event %d\n", event);
break;
}
mutex_unlock(&resource->lock);
acpi_bus_generate_netlink_event(ACPI_POWER_METER_CLASS,
dev_name(&device->dev), event, 0);
}
