Runlevel enable masks

Definitions used to implement runlevels. More...

Data Structures
struct	ServiceRunLevelSetting
	Runlevel control of one service. More...

Enumerations
enum	RunLevelBit
	Bit of each runlevel in an enable mask. More...

Detailed Description

Definitions used to implement runlevels.

Runlevels are defined in the runlevel.def X-macro file, from which RunLevel and RunLevelBit are built. A service's enable mask is the bitwise OR of the RunLevelBit of every runlevel it is enabled in; it is enabled in runlevel when (enable_mask & (1 << runlevel)) != 0.

The short R_<name> names keep masks readable. Only include this header from the files that define masks.

static const struct ServiceRunLevelSetting s_setting = {
  .set_enable_fn = light_allow,
  .enable_mask = R_LowPower | R_FirmwareUpdate | R_Normal,
};

Enumeration Type Documentation

RunLevelBit

enum RunLevelBit

Bit of each runlevel in an enable mask.

One R_<name> value, (1 << number), per entry of runlevel.def.