X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/869f717abb4dbeba46d3ad11f9d6241470409ecd..36a171e1e5b3e6a3baa4be6cfb52dbcd47324abb:/apt-pkg/contrib/fileutl.h diff --git a/apt-pkg/contrib/fileutl.h b/apt-pkg/contrib/fileutl.h index 4a6f6516e..0d0451a46 100644 --- a/apt-pkg/contrib/fileutl.h +++ b/apt-pkg/contrib/fileutl.h @@ -1,6 +1,6 @@ // -*- mode: cpp; mode: fold -*- // Description /*{{{*/ -// $Id: fileutl.h,v 1.17 1999/04/07 05:35:55 jgg Exp $ +// $Id: fileutl.h,v 1.26 2001/05/07 05:06:52 jgg Exp $ /* ###################################################################### File Utilities @@ -21,57 +21,121 @@ #ifndef PKGLIB_FILEUTL_H #define PKGLIB_FILEUTL_H -#ifdef __GNUG__ -#pragma interface "apt-pkg/fileutl.h" -#endif +#include #include +#include + +#include + +/* Define this for python-apt */ +#define APT_HAS_GZIP 1 class FileFd { protected: int iFd; - enum LocalFlags {AutoClose = (1<<0),Fail = (1<<1),DelOnFail = (1<<2)}; + enum LocalFlags {AutoClose = (1<<0),Fail = (1<<1),DelOnFail = (1<<2), + HitEof = (1<<3), Replace = (1<<4) }; unsigned long Flags; - string FileName; - + std::string FileName; + std::string TemporaryFileName; + gzFile gz; + public: - enum OpenMode {ReadOnly,WriteEmpty,WriteExists,WriteAny}; + enum OpenMode {ReadOnly,WriteEmpty,WriteExists,WriteAny,WriteTemp,ReadOnlyGzip, + WriteAtomic}; - bool Read(void *To,unsigned long Size); - bool Write(const void *From,unsigned long Size); - bool Seek(unsigned long To); - bool Truncate(unsigned long To); - unsigned long Tell(); - unsigned long Size(); - bool Close(); + inline bool Read(void *To,unsigned long long Size,bool AllowEof) + { + unsigned long long Jnk; + if (AllowEof) + return Read(To,Size,&Jnk); + return Read(To,Size); + } + bool Read(void *To,unsigned long long Size,unsigned long long *Actual = 0); + bool Write(const void *From,unsigned long long Size); + bool Seek(unsigned long long To); + bool Skip(unsigned long long To); + bool Truncate(unsigned long long To); + unsigned long long Tell(); + unsigned long long Size(); + unsigned long long FileSize(); + /* You want to use 'unsigned long long' if you are talking about a file + to be able to support large files (>2 or >4 GB) properly. + This shouldn't happen all to often for the indexes, but deb's might be… + And as the auto-conversation converts a 'unsigned long *' to a 'bool' + instead of 'unsigned long long *' we need to provide this explicitely - + otherwise applications magically start to fail… */ + __deprecated bool Read(void *To,unsigned long long Size,unsigned long *Actual) + { + unsigned long long R; + bool const T = Read(To, Size, &R); + *Actual = R; + return T; + } + + bool Open(std::string FileName,OpenMode Mode,unsigned long Perms = 0666); + bool OpenDescriptor(int Fd, OpenMode Mode, bool AutoClose=false); + bool Close(); + bool Sync(); + // Simple manipulators inline int Fd() {return iFd;}; inline void Fd(int fd) {iFd = fd;}; + inline gzFile gzFd() {return gz;}; inline bool IsOpen() {return iFd >= 0;}; inline bool Failed() {return (Flags & Fail) == Fail;}; inline void EraseOnFailure() {Flags |= DelOnFail;}; inline void OpFail() {Flags |= Fail;}; - inline string &Name() {return FileName;}; + inline bool Eof() {return (Flags & HitEof) == HitEof;}; + inline std::string &Name() {return FileName;}; - FileFd(string FileName,OpenMode Mode,unsigned long Perms = 0666); - FileFd(int Fd = -1) : iFd(Fd), Flags(AutoClose) {}; - FileFd(int Fd,bool) : iFd(Fd), Flags(0) {}; + FileFd(std::string FileName,OpenMode Mode,unsigned long Perms = 0666) : iFd(-1), + Flags(0), gz(NULL) + { + Open(FileName,Mode,Perms); + }; + FileFd(int Fd = -1) : iFd(Fd), Flags(AutoClose), gz(NULL) {}; + FileFd(int Fd,bool) : iFd(Fd), Flags(0), gz(NULL) {}; virtual ~FileFd(); }; +bool RunScripts(const char *Cnf); bool CopyFile(FileFd &From,FileFd &To); -int GetLock(string File,bool Errors = true); -bool FileExists(string File); -string SafeGetCWD(); +int GetLock(std::string File,bool Errors = true); +bool FileExists(std::string File); +bool RealFileExists(std::string File); +bool DirectoryExists(std::string const &Path) __attrib_const; +bool CreateDirectory(std::string const &Parent, std::string const &Path); +time_t GetModificationTime(std::string const &Path); + +/** \brief Ensure the existence of the given Path + * + * \param Parent directory of the Path directory - a trailing + * /apt/ will be removed before CreateDirectory call. + * \param Path which should exist after (successful) call + */ +bool CreateAPTDirectoryIfNeeded(std::string const &Parent, std::string const &Path); + +std::vector GetListOfFilesInDir(std::string const &Dir, std::string const &Ext, + bool const &SortList, bool const &AllowNoExt=false); +std::vector GetListOfFilesInDir(std::string const &Dir, std::vector const &Ext, + bool const &SortList); +std::string SafeGetCWD(); void SetCloseExec(int Fd,bool Close); void SetNonBlock(int Fd,bool Block); bool WaitFd(int Fd,bool write = false,unsigned long timeout = 0); +pid_t ExecFork(); +bool ExecWait(pid_t Pid,const char *Name,bool Reap = false); // File string manipulators -string flNotDir(string File); -string flNotFile(string File); +std::string flNotDir(std::string File); +std::string flNotFile(std::string File); +std::string flNoLink(std::string File); +std::string flExtension(std::string File); +std::string flCombine(std::string Dir,std::string File); #endif