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itgmania212121/src/CreateZip.h
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3.3 KiB
C++

// Adapted from http://www.codeproject.com/KB/files/zip_utils.aspx
#ifndef CreateZip_H
#define CreateZip_H
// ZIP functions -- for creating zip files
// This file is a repackaged form of the Info-Zip source code available
// at www.info-zip.org. The original copyright notice may be found in
// zip.cpp. The repackaging was done by Lucian Wischik to simplify and
// extend its use in Windows/C++. Also to add encryption and unicode.
class TZip;
class RageFile;
typedef unsigned long ZRESULT;
// return codes from any of the zip functions. Listed later.
class CreateZip
{
TZip* hz;
public:
CreateZip();
bool Start(RageFile *f);
bool AddFile(RString fn);
bool AddDir(RString fn);
bool Finish();
RString GetError();
};
// e.g.
//
// (1) Traditional use, creating a zipfile from existing files
// HZIP hz = CreateZip("c:\\simple1.zip",0);
// ZipAdd(hz,"znsimple.bmp", "c:\\simple.bmp");
// ZipAdd(hz,"znsimple.txt", "c:\\simple.txt");
// CloseZip(hz);
//
// (2) Memory use, creating an auto-allocated mem-based zip file from various sources
// HZIP hz = CreateZip(0,100000, 0);
// // adding a conventional file...
// ZipAdd(hz,"src1.txt", "c:\\src1.txt");
// // adding something from memory...
// char buf[1000]; for (int i=0; i<1000; i++) buf[i]=(char)(i&0x7F);
// ZipAdd(hz,"file.dat", buf,1000);
// // adding something from a pipe...
// HANDLE hread,hwrite; CreatePipe(&hread,&hwrite,NULL,0);
// HANDLE hthread = CreateThread(0,0,ThreadFunc,(void*)hwrite,0,0);
// ZipAdd(hz,"unz3.dat", hread,1000); // the '1000' is optional.
// WaitForSingleObject(hthread,INFINITE);
// CloseHandle(hthread); CloseHandle(hread);
// ... meanwhile DWORD WINAPI ThreadFunc(void *dat)
// { HANDLE hwrite = (HANDLE)dat;
// char buf[1000]={17};
// DWORD writ; WriteFile(hwrite,buf,1000,&writ,NULL);
// CloseHandle(hwrite);
// return 0;
// }
// // and now that the zip is created, let's do something with it:
// void *zbuf; unsigned long zlen; ZipGetMemory(hz,&zbuf,&zlen);
// HANDLE hfz = CreateFile("test2.zip",GENERIC_WRITE,0,0,CREATE_ALWAYS,FILE_ATTRIBUTE_NORMAL,0);
// DWORD writ; WriteFile(hfz,zbuf,zlen,&writ,NULL);
// CloseHandle(hfz);
// CloseZip(hz);
//
// (3) Handle use, for file handles and pipes
// HANDLE hzread,hzwrite; CreatePipe(&hzread,&hzwrite,0,0);
// HANDLE hthread = CreateThread(0,0,ZipReceiverThread,(void*)hzread,0,0);
// HZIP hz = CreateZipHandle(hzwrite,0);
// // ... add to it
// CloseZip(hz);
// CloseHandle(hzwrite);
// WaitForSingleObject(hthread,INFINITE);
// CloseHandle(hthread);
// ... meanwhile DWORD WINAPI ZipReceiverThread(void *dat)
// { HANDLE hread = (HANDLE)dat;
// char buf[1000];
// while (true)
// { DWORD red; ReadFile(hread,buf,1000,&red,NULL);
// // ... and do something with this zip data we're receiving
// if (red==0) break;
// }
// CloseHandle(hread);
// return 0;
// }
#endif