Shapers produce boundary conditions based on a shape, either by playing a scaled result that conforms to the defined shape, or producing a series of pulse-width modulated events of a set amplitude that aggregate over time to the given shape. More...
Typedefs | |
| typedef struct s_shapertarget | SHAPERTARGET |
| the shaper target structure | |
Shapers produce boundary conditions based on a shape, either by playing a scaled result that conforms to the defined shape, or producing a series of pulse-width modulated events of a set amplitude that aggregate over time to the given shape.
Shape files differ from tapes in that they must define the conditions that give rise to the shape. Entries for different shapes are given in shape blocks.
# Winter weekday sample
sample-winter-weekday {
* 0-8 * 10-3 1-5,0.1
* 9-16 * 10-3 1-5,0.4
* 16-0 * 10-3 1-5,0.2
}
Each shape block is a collection of Posix-style cron entries followed by a numeric value. The values are normalized when loaded before being scaled and applied to the target object.
Multiple blocks having different shapes can be defined, provided they do not define more than one value for any given hour of the year. The shaper will examine the shape when loading it to verify that all hours of the year are defined exactly once.