From cf476b09b53f26a185de13bb573b33d06c176820 Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <tridge@samba.org>
Date: Sun, 1 May 2005 08:52:41 +0000
Subject: r6545: some notes and experiments on ref ptrs, testing with midl
 (This used to be commit 87d3d55bd38ddcdbf42a920c65b5cf94649ca607)

---
 source4/build/pidl/ref_notes.txt | 220 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 220 insertions(+)
 create mode 100644 source4/build/pidl/ref_notes.txt

diff --git a/source4/build/pidl/ref_notes.txt b/source4/build/pidl/ref_notes.txt
new file mode 100644
index 0000000000..00f44fddb7
--- /dev/null
+++ b/source4/build/pidl/ref_notes.txt
@@ -0,0 +1,220 @@
+some experiments with ref ptrs
+
+
+
+	typedef struct {
+		short x;
+	} xstruct;
+
+	uint16 echo_TestRef([in] xstruct foo);
+
+	short v = 13;
+	xstruct r;
+	r.x = v;
+	echo_TestRef(r);
+
+	[0D 00]
+
+----------------------------------------------------
+	typedef struct {
+		short *x;
+	} xstruct;
+
+	uint16 echo_TestRef([in] xstruct foo);
+
+	short v = 13;
+	xstruct r;
+	r.x = &v;
+	echo_TestRef(r);
+
+	[PP PP PP PP 0D 00]
+
+
+	xstruct r;
+	r.x = NULL;
+	echo_TestRef(r);
+
+	[00 00 00 00]
+
+----------------------------------------------------
+	typedef struct {
+		[ref] short *x;
+	} xstruct;
+
+	uint16 echo_TestRef([in] xstruct foo);
+
+	short v = 13;
+	xstruct r;
+	r.x = &v;
+	echo_TestRef(r);
+
+	[XX XX XX XX 0D 00]
+
+
+	xstruct r;
+	r.x = NULL;
+	echo_TestRef(r);
+
+	[client runtime error 0x6f4]
+
+
+----------------------------------------------------
+	typedef struct {
+		short x;
+	} xstruct;
+
+	uint16 echo_TestRef([in] xstruct *foo);
+
+	short v = 13;
+	xstruct r;
+	r.x = v;
+	echo_TestRef(&r);
+
+	[0D 00]
+
+
+	echo_TestRef(NULL);
+
+	[client runtime error 0x6f4]
+
+----------------------------------------------------
+	typedef struct {
+		short x;
+	} xstruct;
+
+	uint16 echo_TestRef([in,ref] xstruct *foo);
+
+	short v = 13;
+	xstruct r;
+	r.x = v;
+	echo_TestRef(&r);
+
+	[0D 00]
+
+
+	echo_TestRef(NULL);
+
+	[client runtime error 0x6f4]
+
+
+----------------------------------------------------
+	typedef struct {
+		short x;
+	} xstruct;
+
+	uint16 echo_TestRef([in,unique] xstruct *foo);
+
+	short v = 13;
+	xstruct r;
+	r.x = v;
+	echo_TestRef(&r);
+
+	[PP PP PP PP 0D 00]
+
+
+	echo_TestRef(NULL);
+
+	[00 00 00 00]
+
+
+----------------------------------------------------
+	typedef struct {
+		short x;
+	} xstruct;
+
+	uint16 echo_TestRef([out] xstruct foo);
+
+        [idl compiler error]
+
+----------------------------------------------------
+	typedef struct {
+		short x;
+	} xstruct;
+
+	void echo_TestRef([out] xstruct *foo);
+
+	xstruct r;
+	echo_TestRef(&r);
+	r.x -> 13;
+
+	[0D 00]
+
+
+	echo_TestRef(NULL);
+
+	[client runtime error 0x6f4]
+
+----------------------------------------------------
+	typedef struct {
+		short x;
+	} xstruct;
+
+	void echo_TestRef([out,ref] xstruct *foo);
+
+	xstruct r;
+	echo_TestRef(&r);
+	r.x -> 13;
+
+	[0D 00]
+
+
+	echo_TestRef(NULL);
+
+	[client runtime error 0x6f4]
+
+----------------------------------------------------
+	typedef struct {
+		short x;
+	} xstruct;
+
+	void echo_TestRef([out,unique] xstruct *foo);
+
+        [idl compiler error]
+
+
+----------------------------------------------------
+	void echo_TestRef([in] short **foo);
+
+	short v = 13;
+	short *pv = &v;
+
+	echo_TestRef(&pv);
+
+	[PP PP PP PP 0D 00]
+
+
+	short *pv = NULL;
+
+	echo_TestRef(&pv);
+
+	[00 00 00 00]
+
+
+	echo_TestRef(NULL);
+	
+	[client runtime error 0x6f4]
+
+
+----------------------------------------------------
+	void echo_TestRef([in,ref] short **foo);
+
+	short v = 13;
+	short *pv = &v;
+
+	echo_TestRef(&pv);
+
+	[PP PP PP PP 0D 00]
+
+
+	short *pv = NULL;
+
+	echo_TestRef(&pv);
+
+	[00 00 00 00]
+
+
+	echo_TestRef(NULL);
+	
+	[client runtime error 0x6f4]
+
+
-- 
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