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Fix build caused by DeleteFile not tolerating / at the beginning

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Summary: db->DeleteFile calls ParseFileName to check name that was returned for sst file. Now, sst filename is returned using TableFileName which uses MakeFileName. This puts a / at the front of the name and ParseFileName doesn't like that. Changed ParseFileName to tolerate /s at the beginning. The test delet_file_test used to pass earlier because this behaviour of MakeFileName had been changed a while back to not return a / during which delete_file_test was checked in. But MakeFileName had to be reverted to add / at the front because GetLiveFiles used at many places outside rocksdb used the previous behaviour of MakeFileName.

Test Plan: make;./delete_filetest;make all check

Reviewers: dhruba, haobo, vamsi

Reviewed By: dhruba

CC: leveldb

Differential Revision: https://reviews.facebook.net/D12663
This commit is contained in:
Mayank Agarwal 2013-09-01 01:52:32 -07:00
parent f121c4f504
commit ab5c5c28fe
4 changed files with 10 additions and 7 deletions
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3
db/db_impl.cc
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@ -3042,8 +3042,7 @@ Status DBImpl::DeleteFile(std::string name) {
return status; return status;
} }
void DBImpl::GetLiveFilesMetaData( void DBImpl::GetLiveFilesMetaData(std::vector<LiveFileMetaData> *metadata) {
std::vector<LiveFileMetaData> *metadata) {
MutexLock l(&mutex_); MutexLock l(&mutex_);
return versions_->GetLiveFilesMetaData(metadata); return versions_->GetLiveFilesMetaData(metadata);
} }

2
db/deletefile_test.cc
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@ -167,7 +167,7 @@ TEST(DeleteFileTest, DeleteFileWithIterator) {
} }
Status status = db_->DeleteFile(level2file); Status status = db_->DeleteFile(level2file);
fprintf(stderr, "Deletion status %s: %s\n", fprintf(stdout, "Deletion status %s: %s\n",
level2file.c_str(), status.ToString().c_str()); level2file.c_str(), status.ToString().c_str());
ASSERT_TRUE(status.ok()); ASSERT_TRUE(status.ok());
it->SeekToFirst(); it->SeekToFirst();

4
db/filename.cc
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@ -130,10 +130,14 @@ std::string MetaDatabaseName(const std::string& dbname, uint64_t number) {
// dbname/MANIFEST-[0-9]+ // dbname/MANIFEST-[0-9]+
// dbname/[0-9]+.(log|sst) // dbname/[0-9]+.(log|sst)
// dbname/METADB-[0-9]+ // dbname/METADB-[0-9]+
// Disregards / at the beginning
bool ParseFileName(const std::string& fname, bool ParseFileName(const std::string& fname,
uint64_t* number, uint64_t* number,
FileType* type) { FileType* type) {
Slice rest(fname); Slice rest(fname);
if (fname.length() > 1 && fname[0] == '/') {
rest.remove_prefix(1);
}
if (rest == "CURRENT") { if (rest == "CURRENT") {
*number = 0; *number = 0;
*type = kCurrentFile; *type = kCurrentFile;