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State dirs/files to be versioned and state rights (user,grp,chmod) are now store in the db. Thuss we can remove their derivations at garbage collection time.

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This commit is contained in:
Wouter den Breejen 2007-10-18 17:45:31 +00:00
parent 2d84c9e50c
commit 53e31381fa
9 changed files with 282 additions and 78 deletions
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41
src/libstore/local-store.cc
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@ -158,6 +158,18 @@ static TableId dbStateSnapshots = 0;
*/
static TableId dbSharedState = 0;
/*
* StatePath :: string
* the string is converted to something of type StateInfos
*/
static TableId dbVersionItems = 0;
/*
* StatePath :: string
* the string contains the user,group and chmod
*/
static TableId dbStateRights = 0;
static void upgradeStore07();
static void upgradeStore09();
@ -228,6 +240,8 @@ LocalStore::LocalStore(bool reserveSpace)
dbStateSnapshots = nixDB.openTable("stateSnapshots");
dbSharedState = nixDB.openTable("sharedState");
dbSolidStateReferences = nixDB.openTable("references_solid_c_s"); /* The contents of this table is included in references_c_s */
dbVersionItems = nixDB.openTable("stateItems");
dbStateRights = nixDB.openTable("stateRights");
int curSchema = 0;
Path schemaFN = nixDBPath + "/schema";
@ -556,7 +570,7 @@ static PathSet getXReferrers(const Transaction & txn, const Path & store_or_stat
for (Strings::const_iterator i = keys.begin(); i != keys.end(); ++i){
Path getStatePath;
unsigned int getRevision;
splitDBKey(*i, getStatePath, getRevision);
splitDBRevKey(*i, getStatePath, getRevision);
if(latest[getStatePath] == 0) //either it is unset
latest[getStatePath] = getRevision;
@ -575,7 +589,7 @@ static PathSet getXReferrers(const Transaction & txn, const Path & store_or_stat
//printMsg(lvlError, format("AAAAA '%1%'") % (*i).first);
Strings references;
nixDB.queryStrings(txn, table, mergeToDBKey((*i).first, (*i).second), references);
nixDB.queryStrings(txn, table, mergeToDBRevKey((*i).first, (*i).second), references);
for (Strings::iterator j = references.begin(); j != references.end(); ++j){
//printMsg(lvlError, format("TEST: '%1%' has ref '%2%' check with '%3%'") % (*i).first % *j % path);
if(*j == path)
@ -1852,6 +1866,29 @@ void LocalStore::revertToRevision(const Path & statePath, const unsigned int rev
txn.commit();
}
void setVersionedStateEntriesTxn(const Transaction & txn, const Path & statePath,
const StateInfos & infos, const unsigned int revision, const unsigned int timestamp)
{
setVersionedStateEntries(nixDB, txn, dbVersionItems, dbStateRevisions,
statePath, infos, revision, timestamp);
}
bool getVersionedStateEntriesTxn(const Transaction & txn, const Path & statePath,
StateInfos & infos, const unsigned int revision, const unsigned int timestamp)
{
return getVersionedStateEntries(nixDB, txn, dbVersionItems, dbStateRevisions,
statePath, infos, revision, timestamp);
}
void setStateUserGroupTxn(const Transaction & txn, const Path & statePath, const string & user, const string & group, int chmod)
{
setStateUserGroup(nixDB, txn, dbStateRights, statePath, user, group, chmod);
}
void getStateUserGroupTxn(const Transaction & txn, const Path & statePath, string & user, string & group, int & chmod)
{
getStateUserGroup(nixDB, txn, dbStateRights, statePath, user, group, chmod);
}
typedef std::map<Hash, std::pair<Path, ino_t> > HashToPath;