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check for existence of deprecated ethash file before attempting delete (#2103)

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Robert Habermeier 2016-09-16 08:57:38 +02:00 committed by Arkadiy Paronyan
parent c16bf7face
commit f8f39c4369
1 changed files with 5 additions and 2 deletions
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7
ethash/src/compute.rs
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@ -141,8 +141,11 @@ impl Light {
if self.block_number >= ETHASH_EPOCH_LENGTH * 2 {
let deprecated = Light::file_path(
seed_compute.get_seedhash(self.block_number - ETHASH_EPOCH_LENGTH * 2));
debug!(target: "ethash", "removing: {:?}", &deprecated);
try!(fs::remove_file(deprecated));
if deprecated.exists() {
debug!(target: "ethash", "removing: {:?}", &deprecated);
try!(fs::remove_file(deprecated));
}
}
try!(fs::create_dir_all(path.parent().unwrap()));