* cygheap.h (class cygheap_fdenum): New class to enumerate used

	fhandlers.
	* dtable.h (class dtable): Add cygheap_fdenum as friend class.
	* fhandler.h (fhandler_base::get_proc_fd_name): New virtual method
	to return a name for /proc/<pid>/fd.
	(fhandler_socket::get_proc_fd_name): Ditto.
	(fhandler_pipe::get_proc_fd_name): Ditto.
	(fhandler_virtual::opendir): Make virtual method.
	(fhandler_process::opendir): New method.
	* fhandler.cc (fhandler_base::get_proc_fd_name): New method.
	* fhandler_process.cc: Include ctype.h.
	(PROCESS_FD): Define.
	(process_listing): Add "fd".
	(fhandler_process::exists): Fix comment.  Return 1 in case of "fd"
	directory. Handle files below "fd".
	(fhandler_process::fstat): Drop "self" handling.  Set correct link
	count for directories.
	(fhandler_process::opendir): New method to handle "fd" directory.
	(fhandler_process::readdir): Add "fd" handling.
	(fhandler_process::open): Drop "self" handling.
	(fhandler_process::fill_filebuf): Ditto.  Add "fd" handling.  Fix
	"maps" output string.
	* fhandler_registry.cc (fhandler_registry::fstat): Set correct link
	count for directories.
	* fhandler_socket.cc (fhandler_socket::get_proc_fd_name): New method.
	* path.cc (symlink_info::set): Fix thinko.
	* pinfo.cc (_pinfo::commune_recv): Rename pathbuf to path throughout.
	Drop local path variable in PICOM_FIFO case.  Fix debug output.
	Close handles as early as possible. Add PICOM_FDS and PICOM_FD
	handling.
	(_pinfo::commune_send): Add PICOM_FDS and PICOM_FD handling.
	(_pinfo::fd): New method.
	(_pinfo::fds): New method.
	* pinfo.h (enum picom): Add PICOM_FDS and PICOM_FD.
	(_pinfo::fd): Declare.
	(_pinfo::fds): Declare.
	* pipe.cc (fhandler_pipe::get_proc_fd_name): New method.

1 files changed, 6 insertions, 1 deletions

diff --git a/winsup/cygwin/fhandler.h b/winsup/cygwin/fhandler.h
index f1041c68c..3879e067e 100644
--- a/winsup/cygwin/fhandler.h
+++ b/winsup/cygwin/fhandler.h
@@ -218,6 +218,8 @@ class fhandler_base
   const char *get_name () const { return pc.normalized_path; }
   const char *get_win32_name () { return pc.get_win32 (); }
     __ino64_t get_namehash () { return namehash ?: namehash = hash_path_name (0, get_win32_name ()); }
+  /* Returns name used for /proc/<pid>/fd in buf. */
+  virtual char *get_proc_fd_name (char *buf);
 
   virtual void hclose (HANDLE h) {CloseHandle (h);}
   virtual void set_no_inheritance (HANDLE &h, int not_inheriting);
@@ -398,6 +400,7 @@ class fhandler_socket: public fhandler_base
   void fixup_after_fork (HANDLE);
   void fixup_after_exec ();
   bool need_fixup_before () const {return true;}
+  char *get_proc_fd_name (char *buf);
 
   select_record *select_read (select_record *s);
   select_record *select_write (select_record *s);
@@ -432,6 +435,7 @@ public:
   select_record *select_read (select_record *s);
   select_record *select_write (select_record *s);
   select_record *select_except (select_record *s);
+  char *get_proc_fd_name (char *buf);
   void set_close_on_exec (bool val);
   void __stdcall read (void *ptr, size_t& len) __attribute__ ((regparm (3)));
   int close ();
@@ -1105,7 +1109,7 @@ class fhandler_virtual : public fhandler_base
   virtual ~fhandler_virtual();
 
   virtual int exists();
-  DIR *opendir ();
+  virtual DIR *opendir ();
   _off64_t telldir (DIR *);
   void seekdir (DIR *, _off64_t);
   void rewinddir (DIR *);
@@ -1164,6 +1168,7 @@ class fhandler_process: public fhandler_proc
  public:
   fhandler_process ();
   int exists();
+  DIR *opendir ();
   struct dirent *readdir (DIR *);
   int open (int flags, mode_t mode = 0);
   int __stdcall fstat (struct __stat64 *buf) __attribute__ ((regparm (2)));