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[space-map] Add new virtual methods to inc or dec by a specific amount.

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Provide default implementation that just loops
This commit is contained in:
Joe Thornber 2020-05-26 08:29:52 +01:00
parent 5e6eec1bb0
commit 2ed089a83f
1 changed files with 11 additions and 0 deletions
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11
persistent-data/space_map.h
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@ -48,6 +48,17 @@ namespace persistent_data {
virtual void inc(block_address b) = 0;
virtual void dec(block_address b) = 0;
// slow default implementation
virtual void inc(block_address b, uint32_t count) {
for (uint32_t i = 0; i < count; i++)
inc(b);
}
virtual void dec(block_address b, uint32_t count) {
for (uint32_t i = 0; i < count; i++)
dec(b);
}
// FIXME: change these to return an optional, failure is
// not that rare if we're restricting the area that's
// searched.