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Before seperation of dbs references_state and references (and referrers)

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This commit is contained in:
Wouter den Breejen 2007-07-04 12:32:19 +00:00
parent c65c296ce0
commit 9d7438db9f
7 changed files with 83 additions and 44 deletions
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64
src/libstore/db.cc
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@ -447,30 +447,52 @@ void Database::enumTable(const Transaction & txn, TableId table,
void Database::setStateReferences(const Transaction & txn, TableId table,
const Path & statePath, const int revision, const Strings & references)
{
//get all previous StateReferences
StateReferences newReferences;
//Create the key
string key = statePath + "-" + int2String(revision);
//Merge
newReferences[revision] = references;
//Insert
string data = "";
checkInterrupt();
try {
Db * db = getDb(table);
Dbt kt((void *) statePath.c_str(), statePath.length());
Dbt dt((void *) data.c_str(), data.length());
db->put(txn.txn, &kt, &dt, 0);
} catch (DbException e) { rethrow(e); }
//Insert
setStrings(txn, table, key, references);
}
bool Database::queryStateReferences(const Transaction & txn, TableId table,
const Path & statePath, Strings & references, int revision)
{
//TODO !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
return false;
Strings keys;
enumTable(txn, table, keys); //get all revisions
string key = ""; //final key that matches revision + statePath
int highestRev = -1;
//Lookup which key we need
for (Strings::iterator i = keys.begin(); i != keys.end(); ++i) {
string getStatePath = *i;
if(getStatePath.substr(0, statePath.size()) == statePath){
int getRev;
bool succeed = string2Int(getStatePath.substr(statePath.size() + 1, getStatePath.size()), getRev);
if(!succeed)
throw Error("Malformed revision value after statePath in stateRefereneces");
printMsg(lvlError, format("KEY: %1% of %2%") % getStatePath % getRev);
if(revision == -1){ //the user wants the last revision
if(getRev > highestRev)
highestRev = getRev;
}
else if(revision == getRev){
key = getStatePath;
break;
}
}
}
if(key == "" && highestRev == -1) //no records found
return false;
if(revision == -1)
key = statePath + "-" + int2String(highestRev);
return queryStrings(txn, table, key, references); //now that we have the key, we can query the references
}
void Database::setStateRevisions(const Transaction & txn, TableId table,
@ -478,13 +500,13 @@ void Database::setStateRevisions(const Transaction & txn, TableId table,
{
//TODO
}
/*
bool Database::queryStateRevisions(const Transaction & txn, TableId table,
const Path & statePath, RevisionNumbers & revisions, int revision = -1)
const Path & statePath, RevisionNumbers & revisions, int revision)
{
//TODO
return false;
}*/
}
bool Database::queryAllStateRevisions(const Transaction & txn, TableId table,
const Path & statePath, RevisionNumbers & revisions)