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/* Author: Tobi Vollebregt */
#include "StdAfx.h"
#include "ArchiveDir.h"
#include <assert.h>
#include <stdexcept>
#include "FileSystem/FileSystem.h"
#include "Util.h"
#include "mmgr.h"
inline CFileHandler* CArchiveDir::GetFileHandler(int handle)
{
std::map<int, CFileHandler*>::iterator it = fileHandles.find(handle);
if (it == fileHandles.end())
throw std::runtime_error("Unregistered handle. Pass a handle returned by CArchiveDir::OpenFile.");
return it->second;
}
inline std::vector<std::string>::iterator& CArchiveDir::GetSearchHandle(int handle)
{
std::map<int, std::vector<std::string>::iterator>::iterator it = searchHandles.find(handle);
if (it == searchHandles.end())
throw std::runtime_error("Unregistered handle. Pass a handle returned by CArchiveDir::FindFiles.");
return it->second;
}
CArchiveDir::CArchiveDir(const std::string& archivename) :
CArchiveBase(archivename),
archiveName(archivename + '/'),
curFileHandle(0),
curSearchHandle(0)
{
std::vector<std::string> found = filesystem.FindFiles(archiveName, "*", FileSystem::RECURSE);
// because spring expects the contents of archives to be case independent,
// we convert filenames to lowercase in every function, and keep a std::map
// lcNameToOrigName to convert back from lowercase to original case.
for (std::vector<std::string>::iterator it = found.begin(); it != found.end(); ++it) {
// strip our own name off.. & convert to forward slashes
std::string origName(*it, archiveName.length());
filesystem.ForwardSlashes(origName);
// convert to lowercase and store
searchFiles.push_back(origName);
lcNameToOrigName[StringToLower(origName)] = origName;
}
}
CArchiveDir::~CArchiveDir(void)
{
}
bool CArchiveDir::IsOpen()
{
return true;
}
int CArchiveDir::OpenFile(const std::string& fileName)
{
CFileHandler* f = new CFileHandler(archiveName + lcNameToOrigName[StringToLower(fileName)]);
if (!f || !f->FileExists())
return 0;
++curFileHandle;
fileHandles[curFileHandle] = f;
return curFileHandle;
}
int CArchiveDir::ReadFile(int handle, void* buffer, int numBytes)
{
CFileHandler* f = GetFileHandler(handle);
return f->Read(buffer, numBytes);
}
void CArchiveDir::CloseFile(int handle)
{
delete GetFileHandler(handle);
fileHandles.erase(handle);
}
void CArchiveDir::Seek(int handle, int pos)
{
GetFileHandler(handle)->Seek(pos);
}
int CArchiveDir::Peek(int handle)
{
return GetFileHandler(handle)->Peek();
}
bool CArchiveDir::Eof(int handle)
{
return GetFileHandler(handle)->Eof();
}
int CArchiveDir::FileSize(int handle)
{
return GetFileHandler(handle)->FileSize();
}
int CArchiveDir::FindFiles(int cur, std::string* name, int* size)
{
if (cur == 0) {
cur = ++curSearchHandle;
searchHandles[cur] = searchFiles.begin();
}
if (searchHandles[cur] == searchFiles.end()) {
searchHandles.erase(cur);
return 0;
}
*name = *searchHandles[cur];
*size = filesystem.GetFilesize(archiveName + *name);
++searchHandles[cur];
return cur;
}
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