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bugfixes

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This commit is contained in:
Wouter den Breejen 2007-08-14 17:34:45 +00:00
parent 4089bd5f19
commit 5a9cfdeb6e
11 changed files with 128 additions and 37 deletions
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42
src/libstore/local-store.cc
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@ -1776,6 +1776,48 @@ void setStateStateReferencesTxn(const Transaction & txn, const Path & statePath,
nixDB.setStateReferences(txn, dbStateStateReferences, dbStateRevisions, statePath, references, revision, timestamp);
}
//Lookups which statePaths directy share (point to) statePath
PathSet getSharedWithPathSetTxn(const Transaction & txn, const Path & statePath)
{
PathSet statePaths;
//enumtable
Strings keys;
nixDB.enumTable(txn, dbSharedState, keys);
for (Strings::iterator i = keys.begin(); i != keys.end(); ++i){
Path shared_with;
nixDB.queryString(txn, dbSharedState, *i, shared_with);
if (shared_with == statePath)
statePaths.insert(*i);
}
return statePaths;
}
PathSet getSharedWithPathSetRecTxn_private(const Transaction & txn, const Path & statePath, PathSet & statePaths)
{
//Get all paths pointing to statePath
PathSet newStatePaths = getSharedWithPathSetTxn(txn, statePath);
//go into recursion to see if there are more paths indirectly pointing to statePath
for (PathSet::iterator i = newStatePaths.begin(); i != newStatePaths.end(); ++i)
//Only recurse on the really new statePaths to prevent infinite recursion
if(statePaths.find(*i) == statePaths.end())
statePaths = pathSets_union(statePaths, getSharedWithPathSetRecTxn_private(txn, *i, statePaths));
return statePaths;
}
//Note: Also returns statePath in the PathSet
PathSet getSharedWithPathSetRecTxn(const Transaction & txn, const Path & statePath)
{
//To no shared state path
Path statePath_ns = toNonSharedPathTxn(txn, statePath);
PathSet empty;
return getSharedWithPathSetRecTxn_private(txn, statePath_ns, empty);
}
/* Upgrade from schema 1 (Nix <= 0.7) to schema 2 (Nix >= 0.8). */
static void upgradeStore07()