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179 lines
11 KiB
C
179 lines
11 KiB
C
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// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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// % Project : GUSI - Grand Unified Socket Interface
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// % File : GUSIMacFile.nw - Disk files
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// % Author : Matthias Neeracher
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// % Language : C++
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// %
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// % $Log: GUSIMacFile.h,v $
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// % Revision 1.1 2001/03/11 22:35:45 sgehani%netscape.com
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// % First Checked In.
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// %
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// % Revision 1.24 2001/01/17 08:58:06 neeri
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// % Releasing 2.1.4
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// %
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// % Revision 1.23 2000/12/23 06:11:36 neeri
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// % Move diagnostics to A5 safe time
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// %
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// % Revision 1.22 2000/10/16 04:02:00 neeri
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// % Save A5 in completion routines
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// %
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// % Revision 1.21 2000/05/23 07:07:05 neeri
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// % Improve formatting, fix lseek for readonly files
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// %
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// % Revision 1.20 2000/03/15 07:17:11 neeri
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// % Fix rename for existing targets
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// %
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// % Revision 1.19 2000/03/06 08:12:27 neeri
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// % New Yield system; fix readdir at end of directory
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// %
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// % Revision 1.18 1999/11/15 07:24:32 neeri
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// % Return error for stat() of nonexistent files.
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// %
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// % Revision 1.17 1999/09/09 07:19:19 neeri
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// % Fix read-ahead switch-off
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// %
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// % Revision 1.16 1999/08/26 05:45:05 neeri
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// % Fixes for literate edition of source code
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// %
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// % Revision 1.15 1999/08/05 05:55:35 neeri
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// % Updated for CW Pro 5
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// %
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// % Revision 1.14 1999/08/02 07:02:45 neeri
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// % Support for asynchronous errors and other socket options
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// %
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// % Revision 1.13 1999/07/19 06:21:03 neeri
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// % Add mkdir/rmdir, fix various file manager related bugs
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// %
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// % Revision 1.12 1999/07/07 04:17:41 neeri
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// % Final tweaks for 2.0b3
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// %
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// % Revision 1.11 1999/06/28 06:07:15 neeri
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// % Support I/O alignment, more effective writeback strategy
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// %
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// % Revision 1.10 1999/05/30 02:18:05 neeri
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// % Cleaner definition of GUSICatInfo
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// %
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// % Revision 1.9 1999/04/29 05:33:19 neeri
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// % Fix fcntl prototype
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// %
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// % Revision 1.8 1999/04/10 04:54:39 neeri
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// % stat() was broken for directories
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// %
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// % Revision 1.7 1999/03/29 09:51:28 neeri
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// % New configuration system with support for hardcoded configurations.
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// %
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// % Revision 1.6 1999/03/17 09:05:09 neeri
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// % Added GUSITimer, expanded docs
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// %
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// % Revision 1.5 1998/11/22 23:06:57 neeri
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// % Releasing 2.0a4 in a hurry
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// %
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// % Revision 1.4 1998/10/11 16:45:19 neeri
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// % Ready to release 2.0a2
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// %
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// % Revision 1.3 1998/08/01 21:28:58 neeri
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// % Add directory operations
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// %
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// % Revision 1.2 1998/02/11 12:57:14 neeri
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// % PowerPC Build
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// %
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// % Revision 1.1 1998/01/25 21:02:48 neeri
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// % Engine implemented, except for signals & scheduling
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// %
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// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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//
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// \chapter{Disk files}
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//
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// A [[GUSIMacFileSocket]] implements the operations on mac files. All instances
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// of [[GUSIMacFileSocket]] are created by the [[GUSIMacFileDevice]] singleton, so
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// there is no point in exporting the class itself.
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//
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// A [[GUSIMacDirectory]] implements directory handles on mac directories.
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//
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// <GUSIMacFile.h>=
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#ifndef _GUSIMacFile_
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#define _GUSIMacFile_
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#ifdef GUSI_INTERNAL
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#include "GUSIDevice.h"
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// \section{Definition of [[GUSIMacFileDevice]]}
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//
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// [[GUSIMacFileDevice]] is a singleton subclass of [[GUSIDevice]].
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//
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// <Definition of class [[GUSIMacFileDevice]]>=
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class GUSIMacFileDevice : public GUSIDevice {
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public:
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static GUSIMacFileDevice * Instance();
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virtual bool Want(GUSIFileToken & file);
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// <Overridden member functions for [[GUSIMacFileDevice]]>=
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virtual GUSISocket * open(GUSIFileToken & file, int flags);
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// The normal case of [[remove]] is straightforward, but we also want to support
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// the removing of open files, which is frequently used in POSIX code, as much
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// as possible.
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//
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// <Overridden member functions for [[GUSIMacFileDevice]]>=
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virtual int remove(GUSIFileToken & file);
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// [[rename]] can be a surprisingly difficult operation.
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//
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// <Overridden member functions for [[GUSIMacFileDevice]]>=
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virtual int rename(GUSIFileToken & file, const char * newname);
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// [[stat]] is a rather intimidating function which needs to pull together
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// information from various sources.
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//
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// <Overridden member functions for [[GUSIMacFileDevice]]>=
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virtual int stat(GUSIFileToken & file, struct stat * buf);
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// <Overridden member functions for [[GUSIMacFileDevice]]>=
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virtual int chmod(GUSIFileToken & file, mode_t mode);
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// <Overridden member functions for [[GUSIMacFileDevice]]>=
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virtual int utime(GUSIFileToken & file, const utimbuf * times);
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// <Overridden member functions for [[GUSIMacFileDevice]]>=
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virtual int access(GUSIFileToken & file, int mode);
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// <Overridden member functions for [[GUSIMacFileDevice]]>=
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virtual int mkdir(GUSIFileToken & file);
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// <Overridden member functions for [[GUSIMacFileDevice]]>=
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virtual int rmdir(GUSIFileToken & file);
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// <Overridden member functions for [[GUSIMacFileDevice]]>=
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virtual GUSIDirectory * opendir(GUSIFileToken & file);
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// [[symlink]] has to reproduce the Finder's alias creation process, which is
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// quite complex.
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//
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// <Overridden member functions for [[GUSIMacFileDevice]]>=
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virtual int symlink(GUSIFileToken & to, const char * newlink);
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// <Overridden member functions for [[GUSIMacFileDevice]]>=
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virtual int readlink(GUSIFileToken & link, char * buf, int bufsize);
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// <Overridden member functions for [[GUSIMacFileDevice]]>=
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virtual int fgetfileinfo(GUSIFileToken & file, OSType * creator, OSType * type);
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virtual int fsetfileinfo(GUSIFileToken & file, OSType creator, OSType type);
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// [[faccess]] is a somewhat curious case in that [[GUSIMacFileDevice]]
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// accepts responsibility for handling it, but then does not, in fact, handle
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// it.
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//
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// <Overridden member functions for [[GUSIMacFileDevice]]>=
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virtual int faccess(GUSIFileToken & file, unsigned * cmd, void * arg);
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GUSISocket * open(short fileRef, int flags);
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int MarkTemporary(const FSSpec & file);
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void CleanupTemporaries(bool giveup);
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~GUSIMacFileDevice();
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protected:
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GUSIMacFileDevice() : fTemporaries(0) {}
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// [[MarkTemporary]] moves the file to the temporary folder and puts it on a list
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// of death candidates.
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//
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// <Privatissima of [[GUSIMacFileDevice]]>=
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struct TempQueue {
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TempQueue * fNext;
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FSSpec fSpec;
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} * fTemporaries;
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};
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#endif /* GUSI_INTERNAL */
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#endif /* _GUSIMacFile_ */
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