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Document BlockFileIO::write return code

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This commit is contained in:
benrubson 2017-08-04 09:52:33 +02:00
parent a64c273d9e
commit 062e3a5a98
1 changed files with 8 additions and 0 deletions
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8
encfs/BlockFileIO.cpp
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@ -176,6 +176,10 @@ ssize_t BlockFileIO::read(const IORequest &req) const {
return result;
}
/**
* Returns the very first result returned by RawFileIO::write so :
* 0 in case of success, or -errno in case of failure.
*/
int BlockFileIO::write(const IORequest &req) {
CHECK(_blockSize != 0);
@ -280,6 +284,10 @@ int BlockFileIO::write(const IORequest &req) {
int BlockFileIO::blockSize() const { return _blockSize; }
/**
* Returns the very first result returned by RawFileIO::write so :
* 0 in case of success, or -errno in case of failure.
*/
int BlockFileIO::padFile(off_t oldSize, off_t newSize, bool forceWrite) {
off_t oldLastBlock = oldSize / _blockSize;
off_t newLastBlock = newSize / _blockSize;