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add buffering to temporary storage

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This commit is contained in:
Dennis Luxen 2013-11-29 15:38:21 +01:00
parent f0fb97e67c
commit 682079adc6
1 changed files with 8 additions and 7 deletions
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15
Contractor/TemporaryStorage.h
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@ -63,12 +63,11 @@ public:
int AllocateSlot();
void DeallocateSlot(const int slot_id);
void WriteToSlot(const int slot_id, char * pointer, std::streamsize size);
void ReadFromSlot(const int slot_id, char * pointer, std::streamsize size);
void WriteToSlot(const int slot_id, char * pointer, const std::size_t size);
void ReadFromSlot(const int slot_id, char * pointer, const std::size_t size);
//returns the number of free bytes
uint64_t GetFreeBytesOnTemporaryDevice();
boost::filesystem::fstream::pos_type Tell(int slot_id);
void Seek(const int slot_id, boost::filesystem::fstream::pos_type);
boost::filesystem::fstream::pos_type Tell(const int slot_id);
void RemoveAll();
private:
TemporaryStorage();
@ -78,7 +77,7 @@ private:
return *this;
}
void Abort(boost::filesystem::filesystem_error& e);
void Abort(const boost::filesystem::filesystem_error& e);
void CheckIfTemporaryDeviceFull();
struct StreamData {
@ -86,6 +85,8 @@ private:
boost::filesystem::path temp_path;
boost::shared_ptr<boost::filesystem::fstream> temp_file;
boost::shared_ptr<boost::mutex> readWriteMutex;
std::vector<char> buffer;
StreamData() :
write_mode(true),
temp_path(
@ -104,14 +105,14 @@ private:
),
readWriteMutex(boost::make_shared<boost::mutex>())
{
if(temp_file->fail()) {
if( temp_file->fail() ) {
throw OSRMException("temporary file could not be created");
}
}
};
//vector of file streams that is used to store temporary data
std::vector<StreamData> stream_data_list;
boost::mutex mutex;
std::vector<StreamData> stream_data_list;
};
#endif /* TEMPORARYSTORAGE_H_ */