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Fixed sharing issue. Created unshare method.

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This commit is contained in:
Wouter den Breejen 2007-09-18 15:10:48 +00:00
parent 315cd18337
commit 51cff21c92
18 changed files with 593 additions and 456 deletions
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68
src/libstore/store-state.hh
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@ -7,25 +7,65 @@
namespace nix {
/* Create a state directory. */
void createSubStateDirsTxn(const Transaction & txn, const DerivationStateOutputDirs & stateOutputDirs, const DerivationStateOutputs & stateOutputs);
/* Create a state directory. */
void createSubStateDirsTxn(const Transaction & txn, const DerivationStateOutputDirs & stateOutputDirs, const DerivationStateOutputs & stateOutputs);
/* TODO */
Snapshots commitStatePathTxn(const Transaction & txn, const Path & statePath);
/* TODO */
//void updateRevisionsRecursivelyTxn(const Transaction & txn, const Path & statePath);
/* TODO */
//int readRevisionNumber(Path statePath);
void scanAndUpdateAllReferencesTxn(const Transaction & txn, const Path & statePath
, PathSet & newFoundComponentReferences, PathSet & newFoundStateReferences);
void scanAndUpdateAllReferencesRecusivelyTxn(const Transaction & txn, const Path & statePath);
void revertToRevisionTxn(const Transaction & txn, const Path & statePath, const int revision_arg, const bool recursive);
/* TODO */
Snapshots commitStatePathTxn(const Transaction & txn, const Path & statePath);
// **************************************** *******************************************
/* TODO */
bool lookupHighestRevivison(const Strings & keys, const Path & statePath, string & key, unsigned int lowerthan = 0);
/* TODO */
unsigned int getNewRevisionNumber(Database & nixDB, const Transaction & txn, TableId table, const Path & statePath);
/* TODO */
//void updateRevisionsRecursivelyTxn(const Transaction & txn, const Path & statePath);
/* TODO */
Path mergeToDBKey(const Path & statePath, const unsigned int intvalue);
/* TODO */
void splitDBKey(const Path & revisionedStatePath, Path & statePath, unsigned int & intvalue);
/* TODO */
//int readRevisionNumber(Path statePath);
/* TODO */
bool revisionToTimeStamp(Database & nixDB, const Transaction & txn, TableId revisions_table, const Path & statePath, const int revision, unsigned int & timestamp);
/* Set the stateReferences for a specific revision (and older until the next higher revision number in the table) */
void setStateReferences(Database & nixDB, const Transaction & txn, TableId references_table, TableId revisions_table,
const Path & statePath, const Strings & references, const unsigned int revision = 0, const unsigned int timestamp = 0);
/* Returns the references for a specific revision (and older until the next higher revision number in the table) */
bool queryStateReferences(Database & nixDB, const Transaction & txn, TableId references_table, TableId revisions_table,
const Path & statePath, Strings & references, const unsigned int revision = 0, const unsigned int timestamp = 0);
/* Set the revision number of the statePath and the revision numbers of all state paths in the references closure */
void setStateRevisions(Database & nixDB, const Transaction & txn, TableId revisions_table, TableId revisions_comments,
TableId snapshots_table, const RevisionClosure & revisions, const Path & rootStatePath, const string & comment);
/* Returns all the revision numbers of the state references closure of the given state path */
bool queryStateRevisions(Database & nixDB, const Transaction & txn, TableId revisions_table, TableId snapshots_table,
const Path & statePath, RevisionClosure & revisions, RevisionClosureTS & timestamps, const unsigned int root_revision = 0);
/* Returns all available revision numbers of the given state path */
bool queryAvailableStateRevisions(Database & nixDB, const Transaction & txn, TableId revisions_table, TableId revisions_comments,
const Path & statePath, RevisionInfos & revisions);
void scanAndUpdateAllReferencesTxn(const Transaction & txn, const Path & statePath
, PathSet & newFoundComponentReferences, PathSet & newFoundStateReferences);
void scanAndUpdateAllReferencesRecusivelyTxn(const Transaction & txn, const Path & statePath);
void revertToRevisionTxn(const Transaction & txn, const Path & statePath, const int revision_arg, const bool recursive);
}