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// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
// $Id: fileutl.h,v 1.26 2001/05/07 05:06:52 jgg Exp $
/* ######################################################################
File Utilities
CopyFile - Buffered copy of a single file
GetLock - dpkg compatible lock file manipulation (fcntl)
FileExists - Returns true if the file exists
SafeGetCWD - Returns the CWD in a string with overrun protection
The file class is a handy abstraction for various functions+classes
that need to accept filenames.
This source is placed in the Public Domain, do with it what you will
It was originally written by Jason Gunthorpe.
##################################################################### */
/*}}}*/
#ifndef PKGLIB_FILEUTL_H
#define PKGLIB_FILEUTL_H
#include <apt-pkg/macros.h>
#include <string>
#include <vector>
using std::string;
class FileFd
{
protected:
int iFd;
enum LocalFlags {AutoClose = (1<<0),Fail = (1<<1),DelOnFail = (1<<2),
HitEof = (1<<3)};
unsigned long Flags;
string FileName;
public:
enum OpenMode {ReadOnly,WriteEmpty,WriteExists,WriteAny,WriteTemp};
inline bool Read(void *To,unsigned long Size,bool AllowEof)
{
unsigned long Jnk;
if (AllowEof)
return Read(To,Size,&Jnk);
return Read(To,Size);
}
bool Read(void *To,unsigned long Size,unsigned long *Actual = 0);
bool Write(const void *From,unsigned long Size);
bool Seek(unsigned long To);
bool Skip(unsigned long To);
bool Truncate(unsigned long To);
unsigned long Tell();
unsigned long Size();
bool Open(string FileName,OpenMode Mode,unsigned long Perms = 0666);
bool Close();
bool Sync();
// Simple manipulators
inline int Fd() {return iFd;};
inline void Fd(int fd) {iFd = fd;};
inline bool IsOpen() {return iFd >= 0;};
inline bool Failed() {return (Flags & Fail) == Fail;};
inline void EraseOnFailure() {Flags |= DelOnFail;};
inline void OpFail() {Flags |= Fail;};
inline bool Eof() {return (Flags & HitEof) == HitEof;};
inline string &Name() {return FileName;};
FileFd(string FileName,OpenMode Mode,unsigned long Perms = 0666) : iFd(-1),
Flags(0)
{
Open(FileName,Mode,Perms);
};
FileFd(int Fd = -1) : iFd(Fd), Flags(AutoClose) {};
FileFd(int Fd,bool) : iFd(Fd), Flags(0) {};
virtual ~FileFd();
};
bool RunScripts(const char *Cnf);
bool CopyFile(FileFd &From,FileFd &To);
int GetLock(string File,bool Errors = true);
bool FileExists(string File);
bool DirectoryExists(string const &Path) __attrib_const;
bool CreateDirectory(string const &Parent, string const &Path);
std::vector<string> GetListOfFilesInDir(string const &Dir, string const &Ext,
bool const &SortList, bool const &AllowNoExt=false);
std::vector<string> GetListOfFilesInDir(string const &Dir, std::vector<string> const &Ext,
bool const &SortList);
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);
* merged from main Patches applied: * apt@packages.debian.org/apt--main--0--patch-106 Restore lost changelog entries * apt@packages.debian.org/apt--main--0--patch-107 Merge michael.vogt@ubuntu.com--2005/apt--progress-reporting--0 * apt@packages.debian.org/apt--main--0--patch-108 Merge michael.vogt@ubuntu.com--2005/apt--progress-reporting--0 * apt@packages.debian.org/apt--main--0--patch-109 Merge michael.vogt@ubuntu.com--2005/apt--progress-reporting--0 * apt@packages.debian.org/apt--main--0--patch-110 Merge michael.vogt@ubuntu.com--2005/apt--progress-reporting--0 * michael.vogt@ubuntu.com--2005/apt--fixes--0--patch-5 * merged with apt--main--0 * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--base-0 tag of apt@packages.debian.org/apt--main--0--patch-85 * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-1 * inital proof of concept code, understands what dpkg tells it already * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-2 * progress reporting works now * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-3 * added "APT::Status-Fd" variable * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-4 * do i18n now too * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-5 * define N_(x) if it is not defined already * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-6 * PackageManager::DoInstall(int status_fd) added (does not break the ABI) * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-7 * merged with apt--fixes--0 to make it build again * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-8 * added support for "error" and "conffile-prompt" messages from dpkg * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-9 merge with main * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-10 * use sizeof() for all snprintf() uses; fix a potential line break problem in the status reading code; changed the N_() to _() calls * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-11 * added APT::KeepFDs configuration list for file descriptors that apt should leave open (needed for various frontends like debconf, synaptic) * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-12 * fixed a API breakage * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-13 * doc added, should be releasable now * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-14 * merged with apt--main--0 * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-15 * more source comments, added Debug::DpkgPM debug code to inspect the dpkg<->apt communication, broke the abi (ok with matt) * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-16 * the progress reporting has it's own "Debug::pkgDPkgProgressReporting" debug variable now * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-17 * merged PackageOps and TranslatedPackageOps into a single Map with the new DpkgState struct * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-18 * clear the APT::Keep-Fds configuration when it's no longer needed * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-19 * rewrote the reading from dpkg so that it never blocks * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-20 * merged the two status arrays into one * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-21 * added support for download progress reporting too (for Kamion and base-config) * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-22 * ABI break; added Configuration::Clear(string List, {int,string} value) added (to remove a single Value from a list); test/conf_clear.cc added * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-23 * remvoed a debug string * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-24 * soname changed, fixed a bug in the parsing code when dpkg send the same state more than once (at the end) * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-25 * merged with apt@packages.debian.org/apt--main--0, added changelog entry for the 0.6.40.1 upload * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-26 * fix a bug when out-of-order states are send from dpkg * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-27 * changelog update * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-28 * a real changelog entry now * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-29 * changelog finalized * michael.vogt@ubuntu.com--2005/apt--progress-reporting--0--patch-30 * propper (and sane) support for pmerror and pmconffile added
17 years ago
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);
string flNoLink(string File);
string flExtension(string File);
string flCombine(string Dir,string File);
#endif