Files
simgear/simgear/io/HTTPRepository_private.hxx
T
Automatic Release Builder bd9f04d980 TerraSync: retry after socket failures
Assume socket failures are intermittent, up to some maximum count
(currently configured as 16). Add a test case to cover this.
2020-10-13 11:38:35 +01:00

123 lines
3.5 KiB
C++

// HTTPRepository.cxx -- plain HTTP TerraSync remote client
//
// Copyright (C) 20126 James Turner <zakalawe@mac.com>
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
// USA.
#pragma once
#include <memory>
#include <string>
#include <simgear/io/HTTPClient.hxx>
#include <simgear/misc/sg_path.hxx>
#include "HTTPRepository.hxx"
namespace simgear {
class HTTPDirectory;
using HTTPDirectory_ptr = std::unique_ptr<HTTPDirectory>;
class HTTPRepoGetRequest : public HTTP::Request {
public:
HTTPRepoGetRequest(HTTPDirectory *d, const std::string &u)
: HTTP::Request(u), _directory(d) {}
virtual void cancel();
size_t contentSize() const { return _contentSize; }
void setContentSize(size_t sz) { _contentSize = sz; }
protected:
HTTPDirectory *_directory;
size_t _contentSize = 0;
};
typedef SGSharedPtr<HTTPRepoGetRequest> RepoRequestPtr;
class HTTPRepoPrivate {
public:
struct HashCacheEntry {
std::string filePath;
time_t modTime;
size_t lengthBytes;
std::string hashHex;
};
typedef std::vector<HashCacheEntry> HashCache;
HashCache hashes;
int hashCacheDirty = 0;
HTTPRepository::FailureVec failures;
int maxPermittedFailures = 16;
HTTPRepoPrivate(HTTPRepository *parent)
: p(parent), isUpdating(false), status(HTTPRepository::REPO_NO_ERROR),
totalDownloaded(0) {
;
}
~HTTPRepoPrivate();
HTTPRepository *p; // link back to outer
HTTP::Client *http;
std::string baseUrl;
SGPath basePath;
bool isUpdating;
HTTPRepository::ResultCode status;
HTTPDirectory_ptr rootDir;
size_t totalDownloaded;
HTTPRepository::SyncPredicate syncPredicate;
HTTP::Request_ptr updateFile(HTTPDirectory *dir, const std::string &name,
size_t sz);
HTTP::Request_ptr updateDir(HTTPDirectory *dir, const std::string &hash,
size_t sz);
std::string hashForPath(const SGPath &p);
void updatedFileContents(const SGPath &p, const std::string &newHash);
void parseHashCache();
std::string computeHashForPath(const SGPath &p);
void writeHashCache();
void failedToGetRootIndex(HTTPRepository::ResultCode st);
void failedToUpdateChild(const SGPath &relativePath,
HTTPRepository::ResultCode fileStatus);
void updatedChildSuccessfully(const SGPath &relativePath);
typedef std::vector<RepoRequestPtr> RequestVector;
RequestVector queuedRequests, activeRequests;
void makeRequest(RepoRequestPtr req);
enum class RequestFinish { Done, Retry };
void finishedRequest(const RepoRequestPtr &req, RequestFinish retryRequest);
HTTPDirectory *getOrCreateDirectory(const std::string &path);
bool deleteDirectory(const std::string &relPath, const SGPath &absPath);
typedef std::vector<HTTPDirectory_ptr> DirectoryVector;
DirectoryVector directories;
SGPath installedCopyPath;
};
} // namespace simgear