From 7bb481fda9ecb134804b49c2ce77ca28f7eea583 Mon Sep 17 00:00:00 2001
From: Hans-Christoph Steiner <hans@eds.org>
Date: Fri, 30 Mar 2012 20:42:12 -0400
Subject: Imported Upstream version 2.0.3

---
 src/test_multiplex.h | 91 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 src/test_multiplex.h

(limited to 'src/test_multiplex.h')

diff --git a/src/test_multiplex.h b/src/test_multiplex.h
new file mode 100644
index 0000000..ec1ba9b
--- /dev/null
+++ b/src/test_multiplex.h
@@ -0,0 +1,91 @@
+/*
+** 2011 March 18
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+**
+** This file contains a VFS "shim" - a layer that sits in between the
+** pager and the real VFS.
+**
+** This particular shim enforces a multiplex system on DB files.  
+** This shim shards/partitions a single DB file into smaller 
+** "chunks" such that the total DB file size may exceed the maximum
+** file size of the underlying file system.
+**
+*/
+
+#ifndef _TEST_MULTIPLEX_H
+#define _TEST_MULTIPLEX_H
+
+/*
+** CAPI: File-control Operations Supported by Multiplex VFS
+**
+** Values interpreted by the xFileControl method of a Multiplex VFS db file-handle.
+**
+** MULTIPLEX_CTRL_ENABLE:
+**   This file control is used to enable or disable the multiplex
+**   shim.
+**
+** MULTIPLEX_CTRL_SET_CHUNK_SIZE:
+**   This file control is used to set the maximum allowed chunk 
+**   size for a multiplex file set.  The chunk size should be 
+**   a multiple of SQLITE_MAX_PAGE_SIZE, and will be rounded up
+**   if not.
+**
+** MULTIPLEX_CTRL_SET_MAX_CHUNKS:
+**   This file control is used to set the maximum number of chunks
+**   allowed to be used for a mutliplex file set.
+*/
+#define MULTIPLEX_CTRL_ENABLE          214014
+#define MULTIPLEX_CTRL_SET_CHUNK_SIZE  214015
+#define MULTIPLEX_CTRL_SET_MAX_CHUNKS  214016
+
+/*
+** CAPI: Initialize the multiplex VFS shim - sqlite3_multiplex_initialize()
+**
+** Use the VFS named zOrigVfsName as the VFS that does the actual work.  
+** Use the default if zOrigVfsName==NULL.  
+**
+** The multiplex VFS shim is named "multiplex".  It will become the default
+** VFS if makeDefault is non-zero.
+**
+** An auto-extension is registered which will make the function 
+** multiplex_control() available to database connections.  This
+** function gives access to the xFileControl interface of the 
+** multiplex VFS shim.
+**
+** SELECT multiplex_control(<op>,<val>);
+** 
+**   <op>=1 MULTIPLEX_CTRL_ENABLE
+**   <val>=0 disable
+**   <val>=1 enable
+** 
+**   <op>=2 MULTIPLEX_CTRL_SET_CHUNK_SIZE
+**   <val> int, chunk size
+** 
+**   <op>=3 MULTIPLEX_CTRL_SET_MAX_CHUNKS
+**   <val> int, max chunks
+**
+** THIS ROUTINE IS NOT THREADSAFE.  Call this routine exactly once
+** during start-up.
+*/
+extern int sqlite3_multiplex_initialize(const char *zOrigVfsName, int makeDefault);
+
+/*
+** CAPI: Shutdown the multiplex system - sqlite3_multiplex_shutdown()
+**
+** All SQLite database connections must be closed before calling this
+** routine.
+**
+** THIS ROUTINE IS NOT THREADSAFE.  Call this routine exactly once while
+** shutting down in order to free all remaining multiplex groups.
+*/
+extern int sqlite3_multiplex_shutdown(void);
+
+#endif
-- 
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