Initial import of the CDE 2.1.30 sources from the Open Group.

cde/programs/dtmail/include/DtMail/FileShare.hh

@@ -0,0 +1,89 @@
+/*
+ *+SNOTICE
+ *
+ *
+ *	$TOG: FileShare.hh /main/5 1997/04/29 16:45:06 mgreess $
+ *
+ *	RESTRICTED CONFIDENTIAL INFORMATION:
+ *	
+ *	The information in this document is subject to special
+ *	restrictions in a confidential disclosure agreement bertween
+ *	HP, IBM, Sun, USL, SCO and Univel.  Do not distribute this
+ *	document outside HP, IBM, Sun, USL, SCO, or Univel wihtout
+ *	Sun's specific written approval.  This documment and all copies
+ *	and derivative works thereof must be returned or destroyed at
+ *	Sun's request.
+ *
+ *	Copyright 1993 Sun Microsystems, Inc.  All rights reserved.
+ *
+ *+ENOTICE
+ */
+
+#ifndef _FILESHARE_HH
+#define _FILESHARE_HH
+
+#include <DtMail/DtMail.hh>
+#include <Tt/tt_c.h>
+
+class FileShare : public DtCPlusPlusAllocator {
+  public:
+    FileShare(DtMailEnv & error,
+	      DtMail::Session * session,
+	      const char * path,
+	      DtMailCallback cb_func,
+	      void * clientData);
+    virtual ~FileShare(void);
+    
+    void lockFile(DtMailEnv & error);
+    DtMailBoolean readOnly(DtMailEnv & error);
+    DtMailBoolean readWriteOverride(DtMailEnv & error);
+
+#ifdef DEAD_WOOD
+    DtMailBoolean locked(void);
+#endif /* DEAD_WOOD */
+
+  private:
+    struct TTHandle : public DtCPlusPlusAllocator {
+	DtMail::Session		*session;
+	DtMailObjectKey		key;
+	FileShare *		self;
+    };
+
+    DtMailObjectKey	_key;
+    DtMail::Session	*_session;
+    char		*_path;
+    TTHandle		*_tt_handle;
+    Tt_pattern		*_file_pats;
+    DtMailBoolean	_have_write_access;
+    DtMailBoolean	_other_modified;
+    DtMailCallback	_cb_func;
+    void		*_cb_data;
+
+    enum PendingOp {
+	PENDING_LOCK = 1,
+	PENDING_SAVE = 2,
+	PENDING_DESTROY = 3
+    };
+
+    PendingOp		_pending;
+    DtMailBoolean	_outstanding;
+
+    DtMailBoolean	isModified(DtMailEnv & error);
+
+    static Tt_message fileCB(Tt_message msg, Tttk_op op,
+			     char * path, void *clientData, int same_euid,
+			     int same_proc);
+
+    static Tt_callback_action mt_lock_cb(Tt_message m, Tt_pattern p);
+
+    static Tt_message fileRequestCB(Tt_message, Tttk_op,
+				    char *, void *, int, int);
+
+  /* _mt_pattern is used to handle tlock and rulock messages from mailtool */
+    Tt_pattern	_mt_pattern;
+
+  /* _mt_lock is DTM_TRUE is we use the mailtool locking protocol */
+    int	_mt_lock;
+};
+
+#endif