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fix for queryStoreReferences

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This commit is contained in:
Wouter den Breejen 2007-10-18 12:08:53 +00:00
parent 84d00db70b
commit a699c6b330
11 changed files with 132 additions and 53 deletions
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20
src/libstore/gc.cc
View file

@ -407,12 +407,13 @@ static void addAdditionalRoots(PathSet & roots)
static void dfsVisit(const PathSet & paths, const Path & path,
PathSet & visited, Paths & sorted)
{
if (visited.find(path) != visited.end()) return;
if (visited.find(path) != visited.end())
return;
visited.insert(path);
PathSet references;
if (store->isValidPath(path))
store->queryStoreReferences(path, references, 0);
store->queryStoreReferences(path, references, 0);
for (PathSet::iterator i = references.begin();
i != references.end(); ++i)
@ -634,6 +635,21 @@ void LocalStore::collectGarbage(GCAction action, const PathSet & pathsToDelete,
will not work anymore because we get cycles. */
Paths storePaths = topoSortPaths(storePathSet);
for (Paths::iterator i = storePaths.begin(); i != storePaths.end(); ++i) {
if(*i != "/nix/store/zg8x9wdhcs4j0hvf33vg34c7m65adrpa-env-manifest")
continue;
printMsg(lvlError, format("Consider DEL `%1%'") % *i);
PathSet references;
store->queryStoreReferences(*i, references, 0);
for (PathSet::iterator j = references.begin(); j != references.end(); ++j) {
printMsg(lvlError, format("REF `%1%'") % *j);
}
}
/* Try to delete store paths in the topologically sorted order. */
for (Paths::iterator i = storePaths.begin(); i != storePaths.end(); ++i) {

1
src/libstore/globals.cc
View file

@ -36,6 +36,7 @@ static bool settingsRead = false;
uid_t callingUID = 0; //A root user will not set this value, so the default uid is 0
bool singleThreaded = false; //TODO Gives an error: cannot start worker (environment already open) / waiting for process X: No child processes
bool sendOutput = true;
bool sleepForGDB = false;
static std::map<string, Strings> settings;

4
src/libstore/globals.hh
View file

@ -104,8 +104,10 @@ string queryCallingUsername();
/* get the username based on the UID of the user currently runs the process */
string queryCurrentUsername();
/* Debugging variables */
extern bool singleThreaded;
extern bool sendOutput;
extern bool sendOutput;
extern bool sleepForGDB;
}

8
src/libstore/local-store.cc
View file

@ -401,12 +401,10 @@ bool LocalStore::isValidComponentOrStatePath(const Path & path)
void setReferences(const Transaction & txn, const Path & store_or_statePath,
const PathSet & references, const PathSet & stateReferences, const unsigned int revision)
{
/* For unrealisable paths, we can only clear the references. */
if (references.size() > 0 && !isValidComponentOrStatePathTxn(txn, store_or_statePath))
throw Error(format("cannot set references for path `%1%' which is invalid and has no substitutes") % store_or_statePath);
/*
for (PathSet::iterator i = references.begin(); i != references.end(); ++i)
printMsg(lvlError, format("'%2%' has references: %1%") % *i % store_or_statePath);
@ -483,14 +481,14 @@ void queryXReferencesTxn(const Transaction & txn, const Path & store_or_statePat
references.insert(references2.begin(), references2.end());
}
void LocalStore::queryStoreReferences(const Path & storePath, PathSet & references, const unsigned int revision)
void LocalStore::queryStoreReferences(const Path & componentOrstatePath, PathSet & references, const unsigned int revision)
{
nix::queryXReferencesTxn(noTxn, storePath, references, revision, true);
nix::queryXReferencesTxn(noTxn, componentOrstatePath, references, true, revision);
}
void LocalStore::queryStateReferences(const Path & componentOrstatePath, PathSet & stateReferences, const unsigned int revision)
{
nix::queryXReferencesTxn(noTxn, componentOrstatePath, stateReferences, revision, false);
nix::queryXReferencesTxn(noTxn, componentOrstatePath, stateReferences, false, revision);
}
//Private

49
src/libstore/remote-store.cc
View file

@ -18,21 +18,54 @@
namespace nix {
Path readStorePath(Source & from)
Path readXPath(Source & from, const bool canBeStore, const bool canBeState)
{
Path path = readString(from);
assertStorePath(path);
if(canBeStore && canBeState)
assertStoreOrStatePath(path);
else if(canBeStore)
assertStorePath(path);
else if(canBeState)
assertStatePath(path);
return path;
}
Path readStorePath(Source & from)
{
return readXPath(from, true, false);
}
Path readStatePath(Source & from)
{
return readXPath(from, false, true);
}
Path readStoreOrStatePath(Source & from)
{
return readXPath(from, true, true);
}
PathSet readStorePaths(Source & from)
PathSet readXPaths(Source & from, const bool canBeStore, const bool canBeState)
{
PathSet paths = readStringSet(from);
for (PathSet::iterator i = paths.begin(); i != paths.end(); ++i)
assertStorePath(*i);
for (PathSet::iterator i = paths.begin(); i != paths.end(); ++i){
if(canBeStore && canBeState)
assertStoreOrStatePath(*i);
else if(canBeStore)
assertStorePath(*i);
else if(canBeState)
assertStatePath(*i);
}
return paths;
}
PathSet readStorePaths(Source & from)
{
return readXPaths(from, true, false);
}
PathSet readStatePaths(Source & from)
{
return readXPaths(from, false, true);
}
RemoteStore::RemoteStore()
@ -246,7 +279,7 @@ void RemoteStore::queryStateReferences(const Path & path,
writeString(path, to);
writeBigUnsignedInt(revision, to);
processStderr();
PathSet stateReferences2 = readStorePaths(from);
PathSet stateReferences2 = readStatePaths(from);
stateReferences.insert(stateReferences2.begin(), stateReferences2.end());
}
@ -270,7 +303,7 @@ void RemoteStore::queryStateReferrers(const Path & path,
writeString(path, to);
writeBigUnsignedInt(revision, to);
processStderr();
PathSet stateReferrers2 = readStorePaths(from);
PathSet stateReferrers2 = readStatePaths(from);
stateReferrers.insert(stateReferrers2.begin(), stateReferrers2.end());
}

7
src/libstore/store-api.cc
View file

@ -53,6 +53,13 @@ void assertStatePath(const Path & path)
throw Error(format("state path `%1%' is not in the Nix state-store") % path);
}
void assertStoreOrStatePath(const Path & path)
{
if (!isStorePath(path) && !isStatePath(path))
throw Error(format("path `%1%' is not a store or state path") % path);
}
Path toStorePath(const Path & path)
{

4
src/libstore/store-api.hh
View file

@ -56,7 +56,8 @@ public:
/* Queries the set of outgoing FS state-references for a store path.
The result is not cleared. */
virtual void queryStateReferences(const Path & storePath, PathSet & stateReferences, const unsigned int revision) = 0;
virtual void queryStateReferences(const Path & path,
PathSet & stateReferences, const unsigned int revision) = 0;
/* Queries the set of incoming FS references for a store path.
The result is not cleared. */
@ -238,6 +239,7 @@ public:
/* Throw an exception if `path' is not directly in the Nix store. */
void assertStorePath(const Path & path);
void assertStatePath(const Path & path);
void assertStoreOrStatePath(const Path & path);
bool isInStore(const Path & path);
bool isStorePath(const Path & path);

7
src/libstore/store-state.cc
View file

@ -128,13 +128,6 @@ void revertToRevisionTxn(const Transaction & txn, const Path & statePath, const
Snapshots revisioned_paths = (*i).second;
unsigned int timestamp = getTimestamps[statePath];
//get its derivation-state-items
//Derivation statePath_drv = derivationFromPathTxn(txn, queryStatePathDrvTxn(txn, statePath));
//DerivationStateOutputDirs stateOutputDirs = statePath_drv.stateOutputDirs;
//TODO Sort snapshots??? eg first restore root, then the subdirs??
for (Snapshots::iterator j = revisioned_paths.begin(); j != revisioned_paths.end(); ++j){
Path revertPathOrFile = (*j).first;
unsigned int epoch = (*j).second;

4
src/libstore/worker-protocol.hh
View file

@ -71,7 +71,11 @@ typedef enum {
Path readStorePath(Source & from);
Path readStatePath(Source & from);
Path readStoreOrStatePath(Source & from);
PathSet readStorePaths(Source & from);
PathSet readStatePaths(Source & from);
}

36
src/nix-state/nix-state.cc
View file

@ -20,7 +20,6 @@ using namespace nix;
using std::cin;
using std::cout;
typedef void (* Operation) (Strings opFlags, Strings opArgs);
//two global variables
@ -73,7 +72,7 @@ Derivation getDerivation(const string & fullPath, const Strings & program_args,
//printMsg(lvlError, format("'%1%' - '%2%' - '%3%' - '%4%' - '%5%'") % componentPath % state_identifier % binary % username % bool2string(isStateComponent));
if(isStateComponent)
derivers = store->queryDerivers(componentPath, state_identifier, username);
derivers = store->queryDerivers(componentPath, state_identifier, username); //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! needed ???
else
derivers.insert(store->queryDeriver(componentPath));
@ -594,13 +593,38 @@ void run(Strings args)
throw Error(format("aaa"));
return;
*/
/*
store = openStore();
store->isStateComponent("/nix/state/rrki0fgjc42sfszgk95cg0bpchbc5xp7-hellohardcodedstateworld-1.0-test");
store = openStore();
PathSet p;
p.insert("/nix/store/zg8x9wdhcs4j0hvf33vg34c7m65adrpa-env-manifest");
p.insert("/nix/store/zwm6lwydkh84wmzhffvcgazmcrmamqw7-hellohardcodedstateworld-1.0");
for (PathSet::iterator i = p.begin(); i != p.end(); ++i) {
printMsg(lvlError, format("Path p has references `%1%'") % *i);
PathSet references;
store->queryStoreReferences(*i, references, 0);
for (PathSet::iterator j = references.begin(); j != references.end(); ++j) {
printMsg(lvlError, format("REF `%1%'") % *j);
}
}
PathSet p2;
p2.insert("/nix/store/zg8x9wdhcs4j0hvf33vg34c7m65adrpa-env-manifest");
p2.insert("/nix/store/zwm6lwydkh84wmzhffvcgazmcrmamqw7-hellohardcodedstateworld-1.0");
for (PathSet::iterator i = p.begin(); i != p.end(); ++i) {
printMsg(lvlError, format("Path p has referrers `%1%'") % *i);
PathSet referrers;
store->queryStoreReferrers(*i, referrers, 0);
for (PathSet::iterator j = referrers.begin(); j != referrers.end(); ++j) {
printMsg(lvlError, format("REF `%1%'") % *j);
}
}
return;
*/
*/
/* test */
if(args.size() == 1 && ( *(args.begin()) == "--help" || *(args.begin()) == "--statehelp")){

45
src/nix-worker/nix-worker.cc
View file

@ -250,7 +250,7 @@ static void performOp(Source & from, Sink & to, unsigned int op)
}
case wopIsValidStatePath: {
Path path = readString(from); //TODO readStatePath
Path path = readStatePath(from);
startWork();
bool result = store->isValidStatePath(path);
stopWork();
@ -259,7 +259,7 @@ static void performOp(Source & from, Sink & to, unsigned int op)
}
case wopIsValidComponentOrStatePath: {
Path path = readStorePath(from);
Path path = readStoreOrStatePath(from);
startWork();
bool result = store->isValidComponentOrStatePath(path);
stopWork();
@ -286,7 +286,7 @@ static void performOp(Source & from, Sink & to, unsigned int op)
}
case wopQueryStatePathDrv: {
Path path = readString(from); //TODO !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! make a readStatePath...
Path path = readStatePath(from);
startWork();
Path p = store->queryStatePathDrv(path);
stopWork();
@ -296,7 +296,7 @@ static void performOp(Source & from, Sink & to, unsigned int op)
case wopQueryStoreReferences:
case wopQueryStoreReferrers: {
Path path = readStorePath(from);
Path path = readStoreOrStatePath(from);
unsigned int revision = readBigUnsignedInt(from);
startWork();
PathSet paths;
@ -311,7 +311,7 @@ static void performOp(Source & from, Sink & to, unsigned int op)
case wopQueryStateReferences:
case wopQueryStateReferrers: {
Path path = readStorePath(from);
Path path = readStoreOrStatePath(from);
unsigned int revision = readBigUnsignedInt(from);
startWork();
PathSet paths;
@ -493,7 +493,7 @@ static void performOp(Source & from, Sink & to, unsigned int op)
}
case wopIsStateComponent: {
Path path = readString(from);
Path path = readStorePath(from);
startWork();
bool result = store->isStateComponent(path);
stopWork();
@ -502,7 +502,7 @@ static void performOp(Source & from, Sink & to, unsigned int op)
}
case wopStorePathRequisites: {
Path storeOrstatePath = readString(from);
Path storeOrstatePath = readStoreOrStatePath(from);
bool includeOutputs = readInt(from) == 1;
PathSet paths = readStringSet(from);
bool withComponents = readInt(from) == 1;
@ -528,7 +528,7 @@ static void performOp(Source & from, Sink & to, unsigned int op)
case wopQueryStateRevisions: {
printMsg(lvlError, format("queryStateRevisions nix-worker"));
Path statePath = readString(from);
Path statePath = readStatePath(from);
unsigned int revision = readBigUnsignedInt(from);
RevisionClosure revisions;
RevisionClosureTS timestamps;
@ -542,7 +542,7 @@ static void performOp(Source & from, Sink & to, unsigned int op)
}
case wopQueryAvailableStateRevisions: {
Path statePath = readString(from);
Path statePath = readStatePath(from);
RevisionInfos revisions;
startWork();
bool result = store->queryAvailableStateRevisions(statePath, revisions);
@ -553,7 +553,7 @@ static void performOp(Source & from, Sink & to, unsigned int op)
}
case wopCommitStatePath: {
Path statePath = readString(from);
Path statePath = readStatePath(from);
startWork();
Snapshots ss = store->commitStatePath(statePath);
stopWork();
@ -562,7 +562,7 @@ static void performOp(Source & from, Sink & to, unsigned int op)
}
case wopScanAndUpdateAllReferences: {
Path statePath = readString(from);
Path statePath = readStatePath(from);
bool recursive = readInt(from) == 1;
startWork();
store->scanAndUpdateAllReferences(statePath, recursive);
@ -572,7 +572,7 @@ static void performOp(Source & from, Sink & to, unsigned int op)
}
case wopGetSharedWith: {
Path statePath1 = readString(from);
Path statePath1 = readStatePath(from);
Path statePath2;
startWork();
bool result = store->getSharedWith(statePath1, statePath2);
@ -583,7 +583,7 @@ static void performOp(Source & from, Sink & to, unsigned int op)
}
case wopToNonSharedPathSet: {
PathSet statePaths = readStringSet(from);
PathSet statePaths = readStatePaths(from);
startWork();
PathSet statePaths_ns = store->toNonSharedPathSet(statePaths);
stopWork();
@ -592,7 +592,7 @@ static void performOp(Source & from, Sink & to, unsigned int op)
}
case wopRevertToRevision: {
Path statePath = readString(from);
Path statePath = readStatePath(from);
unsigned int revision_arg = readBigUnsignedInt(from);
bool recursive = readInt(from) == 1;
startWork();
@ -603,8 +603,8 @@ static void performOp(Source & from, Sink & to, unsigned int op)
}
case wopShareState: {
Path from_arg = readString(from);
Path to_arg = readString(from);
Path from_arg = readStatePath(from);
Path to_arg = readStatePath(from);
bool snapshot = readInt(from) == 1;
startWork();
store->shareState(from_arg, to_arg, snapshot);
@ -614,7 +614,7 @@ static void performOp(Source & from, Sink & to, unsigned int op)
}
case wopUnShareState: {
Path path = readString(from);
Path path = readStatePath(from);
bool branch = readInt(from) == 1;
bool restoreOld = readInt(from) == 1;
startWork();
@ -706,12 +706,11 @@ static void processConnection()
op = (WorkerOp) oppp;
/* Use for debugging with gdb --pid=myPid */
/*
if(oppp == 39){
printMsg(lvlError, format("Sleeping 10 before op '%1%' with pid '%2%'") % op % myPid);
sleep(10);
}
*/
if(sleepForGDB)
if(oppp == 39){
printMsg(lvlError, format("Sleeping 10 before op '%1%' with pid '%2%'") % op % myPid);
sleep(10);
}
} catch (EndOfFile & e) {
break;