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consensus: don't use mmap if cache/dataset disk item is not allowed

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This commit is contained in:
Hanjiang Yu 2019-07-21 13:26:52 +08:00
parent f34a3a6805
commit 8c84443e77
1 changed files with 2 additions and 2 deletions
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4
consensus/ethash/ethash.go
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@ -223,7 +223,7 @@ func (c *cache) generate(dir string, limit int, test bool) {
size = 1024 size = 1024
} }
// If we don't store anything on disk, generate and return. // If we don't store anything on disk, generate and return.
if dir == "" { if dir == "" || limit <= 0 {
c.cache = make([]uint32, size/4) c.cache = make([]uint32, size/4)
generateCache(c.cache, c.epoch, seed) generateCache(c.cache, c.epoch, seed)
return return
@ -305,7 +305,7 @@ func (d *dataset) generate(dir string, limit int, test bool) {
dsize = 32 * 1024 dsize = 32 * 1024
} }
// If we don't store anything on disk, generate and return // If we don't store anything on disk, generate and return
if dir == "" { if dir == "" || limit <= 0 {
cache := make([]uint32, csize/4) cache := make([]uint32, csize/4)
generateCache(cache, d.epoch, seed) generateCache(cache, d.epoch, seed)