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Code Issues Releases Wiki Activity

MultiDiskAdaptor: Handle short read

pull/251/head
Tatsuhiro Tsujikawa 2014-07-01 23:53:49 +09:00
parent 8750d7be99
commit a3426821c8
1 changed files with 15 additions and 5 deletions
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18
src/MultiDiskAdaptor.cc
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@ -389,12 +389,22 @@ ssize_t MultiDiskAdaptor::readData
if(!(*i)->isOpen()) {
throwOnDiskWriterNotOpened((*i).get(), offset+(len-rem));
}
totalReadLength +=
(*i)->getDiskWriter()->readData(data+(len-rem), readLength, fileOffset);
rem -= readLength;
while(readLength > 0) {
auto nread = (*i)->getDiskWriter()->readData(data+(len-rem),
readLength, fileOffset);
totalReadLength += nread;
if(dropCache) {
(*i)->getDiskWriter()->dropCache(readLength, fileOffset);
(*i)->getDiskWriter()->dropCache(nread, fileOffset);
}
readLength -= nread;
rem -= nread;
fileOffset += nread;
}
fileOffset = 0;
if(rem == 0) {
break;