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Changes to MetadataFile for updating entries. changes references to metadata object name to key. enhanced the metadataJournal file unit_test.

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This commit is contained in:
Ben Thompson
2019-03-25 17:23:22 -05:00
parent bb5a3d6127
commit e87e9fd5ae
4 changed files with 187 additions and 87 deletions
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17
src/MetadataFile.h
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@@ -13,15 +13,13 @@
#include <iostream>
#include <set>
using namespace std;
namespace storagemanager
{
struct metadataObject {
uint64_t offset;
uint64_t length;
string name;
mutable uint64_t length;
mutable std::string key;
bool operator < (const metadataObject &b) const { return offset < b.offset; }
};
@@ -34,12 +32,13 @@ class MetadataFile
void printObjects();
// returns the objects needed to update
vector<metadataObject> metadataRead(off_t offset, size_t length);
std::vector<metadataObject> metadataRead(off_t offset, size_t length);
// updates the metadatafile with new object
int updateMetadata(const char *filename);
int writeMetadata(const char *filename);
// updates the name and length fields of an entry, given the offset
void updateEntry(off_t offset, const std::string &newName, size_t newLength);
void updateEntry(off_t offset, const std::string &newName, size_t newLength);
void updateEntryLength(off_t offset, size_t newLength);
metadataObject addMetadataObject(const char *filename, size_t length);
// TBD: this may have to go; there may be no use case where only the uuid needs to change.
@@ -58,8 +57,8 @@ class MetadataFile
int mVersion;
int mRevision;
size_t mObjectSize;
//set<metadataObject> mObjects;
vector<metadataObject> mObjects;
std::set<metadataObject> mObjects;
//vector<metadataObject> mObjects;
};
}