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Making single file download fully (and correctly) multithreaded

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Alexander Bock
2015-06-15 02:05:56 +02:00
parent 0a02906d8e
commit fb7f49a6bb
3 changed files with 163 additions and 143 deletions
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include/openspace/engine/downloadmanager.h
+20 -16
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@@ -28,40 +28,44 @@
#include <ghoul/designpattern/singleton.h>
#include <ghoul/filesystem/file.h>
#include <ghoul/filesystem/directory.h>
#include <cstdint>
#include <functional>
#include <string>
namespace openspace {
// Multithreaded
class DownloadManager : public ghoul::Singleton<DownloadManager> {
public:
typedef std::function <
void(const ghoul::filesystem::File&, float progress)
> DownloadProgressCallback;
typedef std::function<
void (const ghoul::filesystem::File&)
> DownloadFinishedCallback;
struct FileFuture {
FileFuture(std::string file);
//struct FileFuture {
float progress; // [0,1]
std::string filePath;
std::string errorMessage;
};
//};
typedef std::function<void(const FileFuture&)> DownloadProgressCallback;
typedef std::function<void(const FileFuture&)> DownloadFinishedCallback;
DownloadManager(std::string requestURL, int applicationVersion);
bool downloadFile(
// callers responsibility to delete
FileFuture* downloadFile(
const std::string& url,
const ghoul::filesystem::File& file,
DownloadFinishedCallback finishedCallback = DownloadFinishedCallback(),
DownloadProgressCallback progressCallback = DownloadProgressCallback()
);
bool downloadRequestFiles(
const std::string& identifier,
const ghoul::filesystem::Directory& destination,
int version,
DownloadFinishedCallback finishedCallback = DownloadFinishedCallback(),
DownloadProgressCallback progressCallback = DownloadProgressCallback()
);
//bool downloadRequestFiles(
// const std::string& identifier,
// const ghoul::filesystem::Directory& destination,
// int version,
// DownloadFinishedCallback finishedCallback = DownloadFinishedCallback(),
// DownloadProgressCallback progressCallback = DownloadProgressCallback()
//);
private:
std::string _requestURL;