From: James Turner Date: Tue, 29 Mar 2016 17:11:56 +0000 (+0100) Subject: Partial update support for HTTP repos. X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=6f09421fd6ac77c894e6cb49ca1538c99b00bde5;p=simgear.git Partial update support for HTTP repos. Not used yet, we set full-update mode on repositories for the moment. Pending Terrasync change will enable partial mode. --- diff --git a/simgear/io/HTTPRepository.cxx b/simgear/io/HTTPRepository.cxx index dc4dc6ea..d87fe3f4 100644 --- a/simgear/io/HTTPRepository.cxx +++ b/simgear/io/HTTPRepository.cxx @@ -57,8 +57,6 @@ namespace simgear { } - virtual void cancel(); - size_t contentSize() const { return _contentSize; @@ -104,6 +102,7 @@ public: hashCacheDirty(false), p(parent), isUpdating(false), + updateEverything(false), status(HTTPRepository::REPO_NO_ERROR), totalDownloaded(0) { ; } @@ -115,10 +114,14 @@ public: std::string baseUrl; SGPath basePath; bool isUpdating; + bool updateEverything; + string_list updatePaths; HTTPRepository::ResultCode status; HTTPDirectory* rootDir; size_t totalDownloaded; + void updateWaiting(); + HTTP::Request_ptr updateFile(HTTPDirectory* dir, const std::string& name, size_t sz); HTTP::Request_ptr updateDir(HTTPDirectory* dir, const std::string& hash, @@ -192,10 +195,12 @@ class HTTPDirectory typedef std::vector ChildInfoList; ChildInfoList children; + public: HTTPDirectory(HTTPRepoPrivate* repo, const std::string& path) : _repository(repo), - _relativePath(path) + _relativePath(path), + _state(DoNotUpdate) { assert(repo); @@ -232,6 +237,8 @@ public: fpath.append(".dirindex"); _repository->updatedFileContents(fpath, hash); + _state = Updated; + children.clear(); parseDirIndex(children); std::sort(children.begin(), children.end()); @@ -239,6 +246,7 @@ public: void failedToUpdate(HTTPRepository::ResultCode status) { + _state = UpdateFailed; if (_relativePath.isNull()) { // root dir failed _repository->failedToGetRootIndex(status); @@ -249,7 +257,11 @@ public: void updateChildrenBasedOnHash() { - //SG_LOG(SG_TERRASYNC, SG_DEBUG, "updated children for:" << relativePath()); + // if we got here for a dir which is still updating or excluded + // from updates, just bail out right now. + if (_state != Updated) { + return; + } string_list indexNames = indexChildren(), toBeUpdated, orphans; @@ -284,6 +296,9 @@ public: SGPath p(relativePath()); p.append(it->file()); HTTPDirectory* childDir = _repository->getOrCreateDirectory(p.str()); + if (childDir->_state == NotUpdated) { + childDir->_state = Updated; + } childDir->updateChildrenBasedOnHash(); } } @@ -301,6 +316,101 @@ public: scheduleUpdates(toBeUpdated); } + void markAsUpToDate() + { + _state = Updated; + } + + void markAsUpdating() + { + assert(_state == NotUpdated); + _state = HTTPDirectory::UpdateInProgress; + } + + void markAsEnabled() + { + // assert because this should only get invoked on newly created + // directory objects which are inside the sub-tree(s) to be updated + assert(_state == DoNotUpdate); + _state = NotUpdated; + } + + void markSubtreeAsNeedingUpdate() + { + if (_state == Updated) { + _state = NotUpdated; // reset back to not-updated + } + + ChildInfoList::iterator cit; + for (cit = children.begin(); cit != children.end(); ++cit) { + if (cit->type == ChildInfo::DirectoryType) { + SGPath p(relativePath()); + p.append(cit->name); + HTTPDirectory* childDir = _repository->getOrCreateDirectory(p.str()); + childDir->markSubtreeAsNeedingUpdate(); + } + } // of child iteration + } + + void markSubtreeAsEnabled() + { + if (_state == DoNotUpdate) { + markAsEnabled(); + } + + ChildInfoList::iterator cit; + for (cit = children.begin(); cit != children.end(); ++cit) { + if (cit->type == ChildInfo::DirectoryType) { + SGPath p(relativePath()); + p.append(cit->name); + HTTPDirectory* childDir = _repository->getOrCreateDirectory(p.str()); + childDir->markSubtreeAsEnabled(); + } + } // of child iteration + } + + + void markAncestorChainAsEnabled() + { + if (_state == DoNotUpdate) { + markAsEnabled(); + } + + if (_relativePath.isNull()) { + return; + } + + std::string prPath = _relativePath.dir(); + if (prPath.empty()) { + _repository->rootDir->markAncestorChainAsEnabled(); + } else { + HTTPDirectory* prDir = _repository->getOrCreateDirectory(prPath); + prDir->markAncestorChainAsEnabled(); + } + } + + void updateIfWaiting(const std::string& hash, size_t sz) + { + if (_state == NotUpdated) { + _repository->updateDir(this, hash, sz); + return; + } + + if ((_state == DoNotUpdate) || (_state == UpdateInProgress)) { + return; + } + + ChildInfoList::iterator cit; + for (cit = children.begin(); cit != children.end(); ++cit) { + if (cit->type == ChildInfo::DirectoryType) { + SGPath p(relativePath()); + p.append(cit->name); + HTTPDirectory* childDir = _repository->getOrCreateDirectory(p.str()); + childDir->updateIfWaiting(cit->hash, cit->sizeInBytes); + } + } // of child iteration + } + void removeOrphans(const string_list& orphans) { string_list::const_iterator it; @@ -337,6 +447,11 @@ public: SGPath p(relativePath()); p.append(*it); HTTPDirectory* childDir = _repository->getOrCreateDirectory(p.str()); + if (childDir->_state == DoNotUpdate) { + SG_LOG(SG_TERRASYNC, SG_WARN, "scheduleUpdate, child:" << *it << " is marked do not update so skipping"); + continue; + } + _repository->updateDir(childDir, cit->hash, cit->sizeInBytes); } } @@ -365,11 +480,12 @@ public: fpath.append(file); if (it->hash != hash) { + // we don't erase the file on a hash mismatch, becuase if we're syncing during the + // middle of a server-side update, the downloaded file may actually become valid. _repository->failedToUpdateChild(_relativePath, HTTPRepository::REPO_ERROR_CHECKSUM); } else { _repository->updatedFileContents(fpath, hash); _repository->totalDownloaded += sz; - //SG_LOG(SG_TERRASYNC, SG_INFO, "did update:" << fpath); } // of hash matches } // of found in child list } @@ -495,7 +611,16 @@ private: HTTPRepoPrivate* _repository; SGPath _relativePath; // in URL and file-system space - + typedef enum + { + NotUpdated, + UpdateInProgress, + Updated, + UpdateFailed, + DoNotUpdate + } State; + + State _state; }; HTTPRepository::HTTPRepository(const SGPath& base, HTTP::Client *cl) : @@ -533,14 +658,38 @@ SGPath HTTPRepository::fsBase() const void HTTPRepository::update() { - if (_d->isUpdating) { + _d->rootDir->markSubtreeAsNeedingUpdate(); + _d->updateWaiting(); +} + +void HTTPRepository::setEntireRepositoryMode() +{ + if (!_d->updateEverything) { + // this is a one-way decision + _d->updateEverything = true; + } + + // probably overkill but not expensive so let's check everything + // we have in case someone did something funky and switched from partial + // to 'whole repo' updating. + _d->rootDir->markSubtreeAsEnabled(); +} + + +void HTTPRepository::addSubpath(const std::string& relPath) +{ + if (_d->updateEverything) { + SG_LOG(SG_TERRASYNC, SG_WARN, "called HTTPRepository::addSubpath but updating everything"); return; } - _d->status = REPO_NO_ERROR; - _d->isUpdating = true; - _d->failures.clear(); - _d->updateDir(_d->rootDir, std::string(), 0); + _d->updatePaths.push_back(relPath); + + HTTPDirectory* dir = _d->getOrCreateDirectory(relPath); + dir->markSubtreeAsEnabled(); + dir->markAncestorChainAsEnabled(); + + _d->updateWaiting(); } bool HTTPRepository::isDoingSync() const @@ -590,12 +739,6 @@ HTTPRepository::failure() const return _d->status; } - void HTTPRepoGetRequest::cancel() - { - _directory->repository()->http->cancelRequest(this, "Reposiotry cancelled"); - _directory = 0; - } - class FileGetRequest : public HTTPRepoGetRequest { public: @@ -605,7 +748,6 @@ HTTPRepository::failure() const { pathInRepo = _directory->absolutePath(); pathInRepo.append(fileName); - //SG_LOG(SG_TERRASYNC, SG_INFO, "will GET file " << url()); } protected: @@ -628,6 +770,7 @@ HTTPRepository::failure() const virtual void onDone() { file->close(); + if (responseCode() == 200) { std::string hash = strutils::encodeHex(sha1_result(&hashContext), HASH_LENGTH); _directory->didUpdateFile(fileName, hash, contentSize()); @@ -649,7 +792,7 @@ HTTPRepository::failure() const if (pathInRepo.exists()) { pathInRepo.remove(); } - + if (_directory) { _directory->didFailToUpdateFile(fileName, HTTPRepository::REPO_ERROR_SOCKET); _directory->repository()->finishedRequest(this); @@ -676,7 +819,6 @@ HTTPRepository::failure() const _targetHash(targetHash) { sha1_init(&hashContext); - //SG_LOG(SG_TERRASYNC, SG_INFO, "will GET dir " << url()); } void setIsRootDir() @@ -725,8 +867,8 @@ HTTPRepository::failure() const of.write(body.data(), body.size()); of.close(); _directory->dirIndexUpdated(hash); - - //SG_LOG(SG_TERRASYNC, SG_INFO, "updated dir index " << _directory->absolutePath()); + } else { + _directory->markAsUpToDate(); } _directory->repository()->totalDownloaded += contentSize(); @@ -778,15 +920,18 @@ HTTPRepository::failure() const HTTPRepoPrivate::~HTTPRepoPrivate() { + // take a copy since cancelRequest will fail and hence remove + // remove activeRequests, invalidating any iterator to it. + RequestVector copyOfActive(activeRequests); + RequestVector::iterator rq; + for (rq = copyOfActive.begin(); rq != copyOfActive.end(); ++rq) { + http->cancelRequest(*rq, "Repository object deleted"); + } + DirectoryVector::iterator it; for (it=directories.begin(); it != directories.end(); ++it) { delete *it; } - - RequestVector::iterator r; - for (r=activeRequests.begin(); r != activeRequests.end(); ++r) { - (*r)->cancel(); - } } HTTP::Request_ptr HTTPRepoPrivate::updateFile(HTTPDirectory* dir, const std::string& name, size_t sz) @@ -799,6 +944,7 @@ HTTPRepository::failure() const HTTP::Request_ptr HTTPRepoPrivate::updateDir(HTTPDirectory* dir, const std::string& hash, size_t sz) { + dir->markAsUpdating(); RepoRequestPtr r(new DirGetRequest(dir, hash)); r->setContentSize(sz); makeRequest(r); @@ -966,6 +1112,25 @@ HTTPRepository::failure() const HTTPDirectory* d = new HTTPDirectory(this, path); directories.push_back(d); + if (updateEverything) { + d->markAsEnabled(); + } else { + string_list::const_iterator s; + bool shouldUpdate = false; + + for (s = updatePaths.begin(); s != updatePaths.end(); ++s) { + size_t minLen = std::min(path.size(), s->size()); + if (s->compare(0, minLen, path, 0, minLen) == 0) { + shouldUpdate = true; + break; + } + } // of paths iteration + + if (shouldUpdate) { + d->markAsEnabled(); + } + } + return d; } @@ -1002,10 +1167,11 @@ HTTPRepository::failure() const void HTTPRepoPrivate::finishedRequest(const RepoRequestPtr& req) { RequestVector::iterator it = std::find(activeRequests.begin(), activeRequests.end(), req); - if (it == activeRequests.end()) { - throw sg_exception("lost request somehow", req->url()); + // in some cases, for example a checksum failure, we clear the active + // and queued request vectors, so the ::find above can fail + if (it != activeRequests.end()) { + activeRequests.erase(it); } - activeRequests.erase(it); if (!queuedRequests.empty()) { RepoRequestPtr rr = queuedRequests.front(); @@ -1030,6 +1196,27 @@ HTTPRepository::failure() const void HTTPRepoPrivate::failedToUpdateChild(const SGPath& relativePath, HTTPRepository::ResultCode fileStatus) { + if (fileStatus == HTTPRepository::REPO_ERROR_CHECKSUM) { + // stop updating, and mark repository as failed, becuase this + // usually indicates we need to start a fresh update from the + // root. + // (we could issue a retry here, but we leave that to higher layers) + status = fileStatus; + + queuedRequests.clear(); + + RequestVector copyOfActive(activeRequests); + RequestVector::iterator rq; + for (rq = copyOfActive.begin(); rq != copyOfActive.end(); ++rq) { + //SG_LOG(SG_TERRASYNC, SG_DEBUG, "cancelling request for:" << (*rq)->url()); + http->cancelRequest(*rq, "Repository updated failed"); + } + + + SG_LOG(SG_TERRASYNC, SG_WARN, "failed to update repository:" << baseUrl + << ", possibly modified during sync"); + } + Failure f; f.path = relativePath; f.error = fileStatus; @@ -1038,6 +1225,22 @@ HTTPRepository::failure() const SG_LOG(SG_TERRASYNC, SG_WARN, "failed to update entry:" << relativePath << " code:" << fileStatus); } + void HTTPRepoPrivate::updateWaiting() + { + if (!isUpdating) { + status = HTTPRepository::REPO_NO_ERROR; + isUpdating = true; + failures.clear(); + } + + // find to-be-updated sub-trees and kick them off + rootDir->updateIfWaiting(std::string(), 0); + // maybe there was nothing to do + if (activeRequests.empty()) { + status = HTTPRepository::REPO_NO_ERROR; + isUpdating = false; + } + } } // of namespace simgear diff --git a/simgear/io/HTTPRepository.hxx b/simgear/io/HTTPRepository.hxx index 0b82f069..7d46c3dd 100644 --- a/simgear/io/HTTPRepository.hxx +++ b/simgear/io/HTTPRepository.hxx @@ -57,6 +57,13 @@ public: virtual void update(); + /** + * set if we should sync the entire repository + */ + void setEntireRepositoryMode(); + + void addSubpath(const std::string& relPath); + virtual bool isDoingSync() const; virtual ResultCode failure() const; diff --git a/simgear/io/test_repository.cxx b/simgear/io/test_repository.cxx index f179c5d2..da47d005 100644 --- a/simgear/io/test_repository.cxx +++ b/simgear/io/test_repository.cxx @@ -19,6 +19,8 @@ #include #include #include +#include + #include using namespace simgear; @@ -68,9 +70,12 @@ public: int requestCount; bool getWillFail; bool returnCorruptData; + std::auto_ptr accessCallback; void clearRequestCounts(); + void clearFailFlags(); + void setGetWillFail(bool b) { getWillFail = b; @@ -113,7 +118,7 @@ public: if (path.empty()) { return this; } - + string_list pathParts = strutils::split(path, "/"); TestRepoEntry* entry = childEntry(pathParts.front()); if (pathParts.size() == 1) { @@ -213,6 +218,18 @@ void TestRepoEntry::clearRequestCounts() } } +void TestRepoEntry::clearFailFlags() +{ + getWillFail = false; + returnCorruptData = false; + + if (isDir) { + for (size_t i=0; iclearFailFlags(); + } + } +} + TestRepoEntry* global_repo = NULL; class TestRepositoryChannel : public TestServerChannel @@ -249,6 +266,10 @@ public: return; } + if (entry->accessCallback.get()) { + (*entry->accessCallback)(); + } + if (entry->getWillFail) { sendErrorResponse(404, false, "entry marked to fail explicitly:" + repoPath); return; @@ -316,6 +337,15 @@ void verifyFileState(const SGPath& fsRoot, const std::string& relPath) } } +void verifyFileNotPresent(const SGPath& fsRoot, const std::string& relPath) +{ + SGPath p(fsRoot); + p.append(relPath); + if (p.exists()) { + throw sg_error("Present file system entry", relPath); + } +} + void verifyRequestCount(const std::string& relPath, int count) { TestRepoEntry* entry = global_repo->findEntry(relPath); @@ -370,9 +400,10 @@ void testBasicClone(HTTP::Client* cl) p.append("http_repo_basic"); simgear::Dir pd(p); pd.removeChildren(); - + repo.reset(new HTTPRepository(p, cl)); repo->setBaseUrl("http://localhost:2000/repo"); + repo->setEntireRepositoryMode(); repo->update(); waitForUpdateComplete(cl, repo.get()); @@ -410,6 +441,7 @@ void testModifyLocalFiles(HTTP::Client* cl) repo.reset(new HTTPRepository(p, cl)); repo->setBaseUrl("http://localhost:2000/repo"); + repo->setEntireRepositoryMode(); repo->update(); waitForUpdateComplete(cl, repo.get()); @@ -451,6 +483,7 @@ void testMergeExistingFileWithoutDownload(HTTP::Client* cl) repo.reset(new HTTPRepository(p, cl)); repo->setBaseUrl("http://localhost:2000/repo"); + repo->setEntireRepositoryMode(); createFile(p, "dirC/fileCB", 4); // should match createFile(p, "dirC/fileCC", 3); // mismatch @@ -493,6 +526,7 @@ void testLossOfLocalFiles(HTTP::Client* cl) repo.reset(new HTTPRepository(p, cl)); repo->setBaseUrl("http://localhost:2000/repo"); + repo->setEntireRepositoryMode(); repo->update(); waitForUpdateComplete(cl, repo.get()); verifyFileState(p, "dirB/subdirA/fileBAA"); @@ -530,6 +564,7 @@ void testAbandonMissingFiles(HTTP::Client* cl) repo.reset(new HTTPRepository(p, cl)); repo->setBaseUrl("http://localhost:2000/repo"); + repo->setEntireRepositoryMode(); repo->update(); waitForUpdateComplete(cl, repo.get()); if (repo->failure() != HTTPRepository::REPO_PARTIAL_UPDATE) { @@ -554,18 +589,285 @@ void testAbandonCorruptFiles(HTTP::Client* cl) repo.reset(new HTTPRepository(p, cl)); repo->setBaseUrl("http://localhost:2000/repo"); + repo->setEntireRepositoryMode(); + repo->update(); waitForUpdateComplete(cl, repo.get()); - if (repo->failure() != HTTPRepository::REPO_PARTIAL_UPDATE) { + if (repo->failure() != HTTPRepository::REPO_ERROR_CHECKSUM) { throw sg_exception("Bad result from corrupt files test"); } + repo.reset(); + if (cl->hasActiveRequests()) { + cl->debugDumpRequests(); + throw sg_exception("Connection still has requests active"); + } + std::cout << "Passed test: detect corrupted download" << std::endl; } +void testPartialUpdateBasic(HTTP::Client* cl) +{ + std::auto_ptr repo; + SGPath p(simgear::Dir::current().path()); + p.append("http_repo_partial_update"); + simgear::Dir pd(p); + if (pd.exists()) { + pd.removeChildren(); + } + + global_repo->clearRequestCounts(); + global_repo->clearFailFlags(); + global_repo->defineFile("dirA/subdirF/fileAFA"); + global_repo->defineFile("dirA/subdirF/fileAFB"); + global_repo->defineFile("dirA/subdirH/fileAHA"); + global_repo->defineFile("dirA/subdirH/fileAHB"); + + global_repo->defineFile("dirG/subdirA/subsubA/fileGAAB"); + +// request subdir of A + repo.reset(new HTTPRepository(p, cl)); + repo->setBaseUrl("http://localhost:2000/repo"); + repo->addSubpath("dirA/subdirF"); + waitForUpdateComplete(cl, repo.get()); + + verifyFileState(p, "dirA/subdirF/fileAFA"); + verifyFileState(p, "dirA/subdirF/fileAFB"); + + verifyFileState(p, "fileA"); // files are always synced + verifyFileState(p, "dirA/fileAB"); + verifyFileNotPresent(p, "dirB/subdirB/fileBBB"); + verifyFileNotPresent(p, "dirD"); + verifyFileNotPresent(p, "dirA/subdirH/fileAHB"); + + verifyRequestCount("dirA", 1); + verifyRequestCount("dirA/fileAA", 1); + verifyRequestCount("dirA/subdirF", 1); + verifyRequestCount("dirA/subdirF/fileAFA", 1); + verifyRequestCount("dirA/subdirF/fileAFB", 1); + verifyRequestCount("dirB", 0); + verifyRequestCount("dirG", 0); + +// now request dir B + repo->addSubpath("dirB"); + waitForUpdateComplete(cl, repo.get()); + + verifyFileState(p, "dirA/subdirF/fileAFB"); + verifyFileState(p, "dirB/subdirB/fileBBA"); + verifyFileState(p, "dirB/subdirB/fileBBB"); + + verifyRequestCount("dirB", 1); + verifyRequestCount("dirB/subdirA/fileBAC", 1); + verifyRequestCount("dirA", 1); + verifyRequestCount("dirA/fileAA", 1); + verifyRequestCount("dirG", 0); + +// widen subdir to parent + repo->addSubpath("dirA"); + waitForUpdateComplete(cl, repo.get()); + + verifyFileState(p, "dirA/subdirH/fileAHA"); + verifyFileState(p, "dirA/subdirH/fileAHB"); + + verifyRequestCount("dirA", 1); + verifyRequestCount("dirB/subdirA/fileBAC", 1); + verifyRequestCount("dirA/subdirF/fileAFA", 1); + +// request an already fetched subdir - should be a no-op + repo->addSubpath("dirB/subdirB"); + waitForUpdateComplete(cl, repo.get()); + + verifyRequestCount("dirB", 1); + verifyRequestCount("dirB/subdirB/fileBBB", 1); + +// add new / modify files inside + global_repo->defineFile("dirA/subdirF/fileAFC"); + global_repo->defineFile("dirA/subdirF/fileAFD"); + repo->update(); + waitForUpdateComplete(cl, repo.get()); + + if (global_repo->requestCount != 2) { + throw sg_exception("Bad root request count"); + } + + verifyFileState(p, "dirA/subdirF/fileAFC"); + verifyFileState(p, "dirA/subdirF/fileAFD"); + + std::cout << "Passed test: basic partial clone and update" << std::endl; +} + +void testPartialUpdateExisting(HTTP::Client* cl) +{ + std::auto_ptr repo; + SGPath p(simgear::Dir::current().path()); + p.append("http_repo_partial_update_existing"); + simgear::Dir pd(p); + if (pd.exists()) { + pd.removeChildren(); + } + + global_repo->clearRequestCounts(); + global_repo->clearFailFlags(); + +// full update to sync everything + repo.reset(new HTTPRepository(p, cl)); + repo->setBaseUrl("http://localhost:2000/repo"); + repo->setEntireRepositoryMode(); + repo->update(); + waitForUpdateComplete(cl, repo.get()); + +// new repo for partial + global_repo->clearRequestCounts(); + repo.reset(new HTTPRepository(p, cl)); + repo->setBaseUrl("http://localhost:2000/repo"); + repo->addSubpath("dirA/subdirF"); + waitForUpdateComplete(cl, repo.get()); + + if (global_repo->requestCount != 1) { + throw sg_exception("Bad root request count"); + } + + verifyRequestCount("dirA", 0); + verifyRequestCount("dirA/fileAA", 0); + verifyRequestCount("dirA/subdirF", 0); + verifyRequestCount("dirA/subdirF/fileAFA", 0); + verifyRequestCount("dirA/subdirF/fileAFB", 0); + +// and request more dirs + // this is a good simulation of terrasync requesting more subdirs of + // an already created and in sync tree. should not generate any more + // network trip + repo->addSubpath("dirC"); + + verifyFileState(p, "dirC/subdirA/subsubA/fileCAAA"); + verifyRequestCount("dirC/subdirA/subsubA/fileCAAA", 0); + + if (global_repo->requestCount != 1) { + throw sg_exception("Bad root request count"); + } + + std::cout << "Passed test: partial update of existing" << std::endl; +} + +void modifyBTree() +{ + std::cout << "Modifying sub-tree" << std::endl; + + global_repo->findEntry("dirB/subdirA/fileBAC")->revision++; + global_repo->defineFile("dirB/subdirZ/fileBZA"); + global_repo->findEntry("dirB/subdirB/fileBBB")->revision++; +} + +void testPartialUpdateWidenWhileInProgress(HTTP::Client* cl) +{ + std::auto_ptr repo; + SGPath p(simgear::Dir::current().path()); + p.append("http_repo_partial_update_widen"); + simgear::Dir pd(p); + if (pd.exists()) { + pd.removeChildren(); + } + + global_repo->clearRequestCounts(); + global_repo->clearFailFlags(); + + // full update to sync everything + repo.reset(new HTTPRepository(p, cl)); + repo->setBaseUrl("http://localhost:2000/repo"); + + repo->addSubpath("dirA/subdirF"); + repo->addSubpath("dirB/subdirB"); + waitForUpdateComplete(cl, repo.get()); + + verifyRequestCount("dirA/subdirF", 1); + if (global_repo->requestCount != 1) { + throw sg_exception("Bad root request count"); + } + + repo->addSubpath("dirA"); + repo->addSubpath("dirB"); + repo->addSubpath("dirC"); + + waitForUpdateComplete(cl, repo.get()); + + // should not request the root again + verifyRequestCount("dirA/subdirF", 1); + if (global_repo->requestCount != 1) { + throw sg_exception("Bad root request count"); + } + + verifyFileState(p, "dirA/subdirF/fileAFA"); + verifyFileState(p, "dirC/subdirA/subsubA/fileCAAA"); + + std::cout << "Passed test: partial update with widen" << std::endl; +} + +void testServerModifyDuringSync(HTTP::Client* cl) +{ + std::auto_ptr repo; + SGPath p(simgear::Dir::current().path()); + p.append("http_repo_server_modify_during_sync"); + simgear::Dir pd(p); + if (pd.exists()) { + pd.removeChildren(); + } + + global_repo->clearRequestCounts(); + global_repo->clearFailFlags(); + + repo.reset(new HTTPRepository(p, cl)); + repo->setBaseUrl("http://localhost:2000/repo"); + repo->setEntireRepositoryMode(); + + global_repo->findEntry("dirA/fileAA")->accessCallback.reset(make_callback(&modifyBTree)); + + repo->update(); + waitForUpdateComplete(cl, repo.get()); + + global_repo->findEntry("dirA/fileAA")->accessCallback.reset(); + + if (repo->failure() != HTTPRepository::REPO_ERROR_CHECKSUM) { + throw sg_exception("Bad result from corrupt files test"); + } + + std::cout << "Passed test modify server during sync" << std::endl; + +} + +void testDestroyDuringSync(HTTP::Client* cl) +{ + std::auto_ptr repo; + SGPath p(simgear::Dir::current().path()); + p.append("http_repo_destory_during_sync"); + simgear::Dir pd(p); + if (pd.exists()) { + pd.removeChildren(); + } + + global_repo->clearRequestCounts(); + global_repo->clearFailFlags(); + + repo.reset(new HTTPRepository(p, cl)); + repo->setBaseUrl("http://localhost:2000/repo"); + repo->setEntireRepositoryMode(); + + repo->update(); + + // would ideally spin slightly here + + repo.reset(); + + if (cl->hasActiveRequests()) { + throw sg_exception("destory of repo didn't clean up requests"); + } + + std::cout << "Passed test destory during sync" << std::endl; +} + + int main(int argc, char* argv[]) { - sglog().setLogLevels( SG_ALL, SG_INFO ); + sglog().setLogLevels( SG_ALL, SG_DEBUG ); HTTP::Client cl; cl.setMaxConnections(1); @@ -581,6 +883,8 @@ int main(int argc, char* argv[]) global_repo->defineFile("dirB/subdirA/fileBAA"); global_repo->defineFile("dirB/subdirA/fileBAB"); global_repo->defineFile("dirB/subdirA/fileBAC"); + global_repo->defineFile("dirB/subdirB/fileBBA"); + global_repo->defineFile("dirB/subdirB/fileBBB"); global_repo->defineFile("dirC/subdirA/subsubA/fileCAAA"); testBasicClone(&cl); @@ -595,5 +899,13 @@ int main(int argc, char* argv[]) testAbandonCorruptFiles(&cl); + testPartialUpdateBasic(&cl); + testPartialUpdateExisting(&cl); + testPartialUpdateWidenWhileInProgress(&cl); + + testServerModifyDuringSync(&cl); + + testDestroyDuringSync(&cl); + return 0; } diff --git a/simgear/scene/tsync/terrasync.cxx b/simgear/scene/tsync/terrasync.cxx index 62aa4905..da49af48 100644 --- a/simgear/scene/tsync/terrasync.cxx +++ b/simgear/scene/tsync/terrasync.cxx @@ -486,6 +486,7 @@ void SGTerraSync::WorkerThread::updateSyncSlot(SyncSlot &slot) } // of creating directory step slot.repository.reset(new HTTPRepository(path, &_http)); + slot.repository->setEntireRepositoryMode(); slot.repository->setBaseUrl(_httpServer + "/" + slot.currentItem._dir); try {