From e69edf05ebe2b2e6dab9c61d0574c19d83c16879 Mon Sep 17 00:00:00 2001
From: David Anderson <dvander@alliedmods.net>
Date: Mon, 7 May 2007 00:02:33 +0000
Subject: [PATCH] added amb260

--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%40756
---
 core/smn_keyvalues.cpp        | 20 ++++++++++++++++++++
 plugins/include/keyvalues.inc | 11 +++++++++++
 2 files changed, 31 insertions(+)

diff --git a/core/smn_keyvalues.cpp b/core/smn_keyvalues.cpp
index 622c4506..71e9d505 100644
--- a/core/smn_keyvalues.cpp
+++ b/core/smn_keyvalues.cpp
@@ -637,6 +637,25 @@ static cell_t smn_KvSetEscapeSequences(IPluginContext *pCtx, const cell_t *param
 	return 1;
 }
 
+static cell_t smn_KvNodesInStack(IPluginContext *pCtx, const cell_t *params)
+{
+	Handle_t hndl = static_cast<Handle_t>(params[1]);
+	HandleError herr;
+	HandleSecurity sec;
+	KeyValueStack *pStk;
+
+	sec.pOwner = NULL;
+	sec.pIdentity = g_pCoreIdent;
+
+	if ((herr=g_HandleSys.ReadHandle(hndl, g_KeyValueType, &sec, (void **)&pStk))
+		!= HandleError_None)
+	{
+		return pCtx->ThrowNativeError("Invalid key value handle %x (error %d)", hndl, herr);
+	}
+
+	return pStk->pCurRoot.size();
+}
+
 static cell_t smn_KvDeleteThis(IPluginContext *pContext, const cell_t *params)
 {
 	Handle_t hndl = static_cast<Handle_t>(params[1]);
@@ -731,5 +750,6 @@ REGISTER_NATIVES(keyvaluenatives)
 	{"KvSetEscapeSequences",	smn_KvSetEscapeSequences},
 	{"KvDeleteThis",			smn_KvDeleteThis},
 	{"KvDeleteKey",				smn_KvDeleteKey},
+	{"KvNodesInStack",			smn_KvNodesInStack},
 	{NULL,						NULL}
 };
diff --git a/plugins/include/keyvalues.inc b/plugins/include/keyvalues.inc
index 9082bfec..bb373d67 100644
--- a/plugins/include/keyvalues.inc
+++ b/plugins/include/keyvalues.inc
@@ -298,3 +298,14 @@ native bool:FileToKeyValues(Handle:kv, const String:file[]);
  * @error				Invalid Handle.
  */
 native KvSetEscapeSequences(Handle:kv, bool:useEscapes);
+
+/**
+ * Returns the position in the jump stack; I.e. the number of calls
+ * required for KvGoBack to return to the root node.  If at the root node,
+ * 0 is returned.
+ *
+ * @param kv			KeyValues Handle.
+ * @return				Number of non-root nodes in the jump stack.
+ * @error				Invalid Handle.
+ */
+native KvNodesInStack(Handle:kv);
\ No newline at end of file