Updated WIN32 code specific sections. Changed header.

[idzebra-moved-to-github.git] / include / bfile.h

diff --git a/include/bfile.h b/include/bfile.h
index ae8d2f4..ec86cd9 100644 (file)
--- a/include/bfile.h
+++ b/include/bfile.h
@@ -1,10 +1,34 @@
 /*
- * Copyright (C) 1994-1995, Index Data I/S 
+ * Copyright (C) 1994-1999, Index Data
  * All rights reserved.
  * Sebastian Hammer, Adam Dickmeiss
  *
  * $Log: bfile.h,v $
- * Revision 1.9  1995-12-01 11:37:46  adam
+ * Revision 1.16  1999-02-02 14:50:29  adam
+ * Updated WIN32 code specific sections. Changed header.
+ *
+ * Revision 1.15  1997/09/17 12:19:07  adam
+ * Zebra version corresponds to YAZ version 1.4.
+ * Changed Zebra server so that it doesn't depend on global common_resource.
+ *
+ * Revision 1.14  1997/09/05 15:29:58  adam
+ * Changed prototype for chr_map_input - added const.
+ * Added support for C++, headers uses extern "C" for public definitions.
+ *
+ * Revision 1.13  1996/10/29 13:43:07  adam
+ * Added a few comments.
+ *
+ * Revision 1.12  1996/03/26 16:00:44  adam
+ * The directory of the shadow table can be specified by the new
+ * bf_lockDir call.
+ *
+ * Revision 1.11  1995/12/08  16:20:39  adam
+ * New commit utilities - used for 'save' update.
+ *
+ * Revision 1.10  1995/12/01  16:24:33  adam
+ * Commit files use separate meta file area.
+ *
+ * Revision 1.9  1995/12/01  11:37:46  adam
  * Cached/commit files implemented as meta-files.
  *
  * Revision 1.8  1995/11/30  08:33:29  adam
@@ -30,22 +54,67 @@
 #ifndef BFILE_H
 #define BFILE_H
 
-#include <alexutil.h>
 #include <mfile.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define bf_blocksize(bf) mf_blocksize(bf->mf)
 
+typedef struct BFiles_struct *BFiles;
+
+BFiles bfs_create (const char *spec);
+void bfs_destroy (BFiles bfiles);
+
 typedef struct BFile_struct
 {
     MFile mf;
     struct CFile_struct *cf;
 } *BFile, BFile_struct;
 
+/* bf_close: closes bfile.
+   returns 0 if successful; non-zero otherwise 
+ */
 int bf_close (BFile);
-BFile bf_open (const char *name, int block_size, int wflag);
+
+/* bf_open: opens bfile.
+   opens bfile with name 'name' and with 'block_size' as block size.
+   returns bfile handle is successful; NULL otherwise 
+ */
+BFile bf_open (BFiles bfs, const char *name, int block_size, int wflag);
+
+/* bf_read: reads bytes from bfile 'bf'.
+   reads 'num' bytes (or whole block if 0) from offset 'offset' from
+   block 'no'. stores contents in buffer 'buf'.
+   returns 1 if whole block could be read; 0 otherwise.
+ */
 int bf_read (BFile bf, int no, int offset, int num, void *buf);
+
+/* bf_write: writes bytes to bfile 'bf'.
+   writes 'num' bytes (or whole block if 0) at offset 'offset' to
+   block 'no'. retrieves contents from buffer 'buf'.
+   returns 0 if successful; non-zero otherwise.
+ */
 int bf_write (BFile bf, int no, int offset, int num, const void *buf);
-void bf_cache ();
-void bf_commit ();
+
+/* bf_cache: enables bfile cache if spec is not NULL */
+void bf_cache (BFiles bfs, const char *spec);
+
+/* bf_lockDir: specifies locking directory for the cache system */
+void bf_lockDir (BFiles bfs, const char *lockDir);
+
+/* bf_commitExists: returns 1 if commit is pending; 0 otherwise */
+int bf_commitExists (BFiles bfs);
+
+/* bf_commitExec: executes commit */
+void bf_commitExec (BFiles bfs);
+
+/* bf_commitClean: cleans commit files, etc */
+void bf_commitClean (BFiles bfs, const char *spec);
+
+#ifdef __cplusplus
+}
+#endif
 
 #endif