Merge branch 'debian/experimental-no-abi-break' into debian/sid

[apt.git] / apt-pkg / contrib / fileutl.h

diff --git a/apt-pkg/contrib/fileutl.h b/apt-pkg/contrib/fileutl.h
index 8f2d7a0a04948e537731b62e2c442cafc6bbf040..e752e96211ddd54343dd05b0a08082dc1f9d85b1 100644 (file)
--- a/apt-pkg/contrib/fileutl.h
+++ b/apt-pkg/contrib/fileutl.h
@@ -22,26 +22,32 @@
 #define PKGLIB_FILEUTL_H
 
 #include <apt-pkg/macros.h>
+#include <apt-pkg/aptconfiguration.h>
 
 #include <string>
 #include <vector>
+#include <set>
 
 #include <zlib.h>
 
+#ifndef APT_8_CLEANER_HEADERS
+using std::string;
+#endif
+
 /* Define this for python-apt */
 #define APT_HAS_GZIP 1
 
+class FileFdPrivate;
 class FileFd
 {
    protected:
    int iFd;
  
    enum LocalFlags {AutoClose = (1<<0),Fail = (1<<1),DelOnFail = (1<<2),
-                    HitEof = (1<<3), Replace = (1<<4) };
+                    HitEof = (1<<3), Replace = (1<<4), Compressed = (1<<5) };
    unsigned long Flags;
    std::string FileName;
    std::string TemporaryFileName;
-   gzFile gz;
 
    public:
    enum OpenMode {
@@ -71,7 +77,9 @@ class FileFd
       return Read(To,Size);
    }   
    bool Read(void *To,unsigned long long Size,unsigned long long *Actual = 0);
+   char* ReadLine(char *To, unsigned long long const Size);
    bool Write(const void *From,unsigned long long Size);
+   bool static Write(int Fd, 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);
@@ -94,12 +102,14 @@ class FileFd
        return T;
    }
 
-   bool Open(std::string FileName,OpenMode Mode,CompressMode Compress,unsigned long Perms = 0666);
-   inline bool Open(std::string const &FileName,OpenMode Mode, unsigned long Perms = 0666) {
+   bool Open(std::string FileName,unsigned int const Mode,CompressMode Compress,unsigned long const Perms = 0666);
+   bool Open(std::string FileName,unsigned int const Mode,APT::Configuration::Compressor const &compressor,unsigned long const Perms = 0666);
+   inline bool Open(std::string const &FileName,unsigned int const Mode, unsigned long const Perms = 0666) {
       return Open(FileName, Mode, None, Perms);
    };
-   bool OpenDescriptor(int Fd, OpenMode Mode, CompressMode Compress, bool AutoClose=false);
-   inline bool OpenDescriptor(int Fd, OpenMode Mode, bool AutoClose=false) {
+   bool OpenDescriptor(int Fd, unsigned int const Mode, CompressMode Compress, bool AutoClose=false);
+   bool OpenDescriptor(int Fd, unsigned int const Mode, APT::Configuration::Compressor const &compressor, bool AutoClose=false);
+   inline bool OpenDescriptor(int Fd, unsigned int const Mode, bool AutoClose=false) {
       return OpenDescriptor(Fd, Mode, None, AutoClose);
    };
    bool Close();
@@ -107,31 +117,43 @@ class FileFd
    
    // Simple manipulators
    inline int Fd() {return iFd;};
-   inline void Fd(int fd) {iFd = fd;};
-   inline gzFile gzFd() {return gz;};
+   inline void Fd(int fd) { OpenDescriptor(fd, ReadWrite);};
+   __deprecated gzFile gzFd();
+
    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 bool IsCompressed() {return (Flags & Compressed) == Compressed;};
    inline std::string &Name() {return FileName;};
    
-   FileFd(std::string FileName,OpenMode Mode,unsigned long Perms = 0666) : iFd(-1), 
-            Flags(0), gz(NULL)
+   FileFd(std::string FileName,unsigned int const Mode,unsigned long Perms = 0666) : iFd(-1), Flags(0), d(NULL)
    {
       Open(FileName,Mode, None, Perms);
    };
-   FileFd(std::string FileName,OpenMode Mode, CompressMode Compress, unsigned long Perms = 0666) :
-           iFd(-1), Flags(0), gz(NULL)
+   FileFd(std::string FileName,unsigned int const Mode, CompressMode Compress, unsigned long Perms = 0666) : iFd(-1), Flags(0), d(NULL)
    {
       Open(FileName,Mode, Compress, Perms);
    };
-   FileFd(int Fd = -1) : iFd(Fd), Flags(AutoClose), gz(NULL) {};
-   FileFd(int Fd,bool) : iFd(Fd), Flags(0), gz(NULL) {};
+   FileFd() : iFd(-1), Flags(AutoClose), d(NULL) {};
+   FileFd(int const Fd, unsigned int const Mode = ReadWrite, CompressMode Compress = None) : iFd(-1), Flags(0), d(NULL)
+   {
+      OpenDescriptor(Fd, Mode, Compress);
+   };
+   FileFd(int const Fd, bool const AutoClose) : iFd(-1), Flags(0), d(NULL)
+   {
+      OpenDescriptor(Fd, ReadWrite, None, AutoClose);
+   };
    virtual ~FileFd();
 
    private:
-   bool OpenInternDescriptor(OpenMode Mode, CompressMode Compress);
+   FileFdPrivate* d;
+   bool OpenInternDescriptor(unsigned int const Mode, APT::Configuration::Compressor const &compressor);
+
+   // private helpers to set Fail flag and call _error->Error
+   bool FileFdErrno(const char* Function, const char* Description,...) __like_printf(3) __cold;
+   bool FileFdError(const char* Description,...) __like_printf(2) __cold;
 };
 
 bool RunScripts(const char *Cnf);
@@ -143,6 +165,8 @@ 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);
 
+std::string GetTempDir();
+
 /** \brief Ensure the existence of the given Path
  *
  *  \param Parent directory of the Path directory - a trailing
@@ -155,11 +179,14 @@ std::vector<std::string> GetListOfFilesInDir(std::string const &Dir, std::string
                                        bool const &SortList, bool const &AllowNoExt=false);
 std::vector<std::string> GetListOfFilesInDir(std::string const &Dir, std::vector<std::string> const &Ext,
                                        bool const &SortList);
+std::vector<std::string> GetListOfFilesInDir(std::string const &Dir, bool 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();
+pid_t ExecFork(std::set<int> keep_fds);
+void MergeKeepFdsFromConfiguration(std::set<int> &keep_fds);
 bool ExecWait(pid_t Pid,const char *Name,bool Reap = false);
 
 // File string manipulators
@@ -169,4 +196,7 @@ std::string flNoLink(std::string File);
 std::string flExtension(std::string File);
 std::string flCombine(std::string Dir,std::string File);
 
+// simple c++ glob
+std::vector<std::string> Glob(std::string const &pattern, int flags=0);
+
 #endif