Experimental addition to CreateMultiForward() for bcompat

amxmodx/CForward.cpp

@@ -33,7 +33,7 @@
 #include "debugger.h"
 #include "binlog.h"
 
-CForward::CForward(const char *name, ForwardExecType et, int numParams, const ForwardParam *paramTypes)
+CForward::CForward(const char *name, ForwardExecType et, int numParams, const ForwardParam *paramTypes, int fwd_type)
 {
 	m_FuncName = name;
 	m_ExecType = et;
@@ -47,6 +47,13 @@ CForward::CForward(const char *name, ForwardExecType et, int numParams, const Fo
 	
 	for (CPluginMngr::iterator iter = g_plugins.begin(); iter; ++iter)
 	{
+		if ((fwd_type != FORWARD_ALL) &&
+			((fwd_type == FORWARD_ONLY_NEW && ((*iter).getAMX()->flags & AMX_FLAG_OLDFILE))
+			|| (fwd_type == FORWARD_ONLY_OLD && !((*iter).getAMX()->flags & AMX_FLAG_OLDFILE))
+			))
+		{
+			continue;
+		}
 		if ((*iter).isValid() && amx_FindPublic((*iter).getAMX(), name, &func) == AMX_ERR_NONE)
 		{
 			AMXForward tmp;
@@ -352,13 +359,15 @@ cell CSPForward::execute(cell *params, ForwardPreparedArray *preparedArrays)
 	return retVal;
 }
 
-int CForwardMngr::registerForward(const char *funcName, ForwardExecType et, int numParams, const ForwardParam * paramTypes)
+int CForwardMngr::registerForward(const char *funcName, ForwardExecType et, int numParams, const ForwardParam * paramTypes, int fwd_type)
 {
 	int retVal = m_Forwards.size() << 1;
-	CForward *tmp = new CForward(funcName, et, numParams, paramTypes);
+	CForward *tmp = new CForward(funcName, et, numParams, paramTypes, fwd_type);
 	
 	if (!tmp)
+	{
 		return -1;				// should be invalid
+	}
 	
 	m_Forwards.push_back(tmp);
 	
@@ -519,14 +528,16 @@ void CForwardMngr::unregisterSPForward(int id)
 	m_FreeSPForwards.push(id);
 }
 
-int registerForwardC(const char *funcName, ForwardExecType et, cell *list, size_t num)
+int registerForwardC(const char *funcName, ForwardExecType et, cell *list, size_t num, int fwd_type)
 {
 	ForwardParam params[FORWARD_MAX_PARAMS];
 	
 	for (size_t i=0; i<num; i++)
+	{
 		params[i] = static_cast<ForwardParam>(list[i]);
+	}
 	
-	return g_forwards.registerForward(funcName, et, num, params);
+	return g_forwards.registerForward(funcName, et, num, params, fwd_type);
 }
 
 int registerForward(const char *funcName, ForwardExecType et, ...)

amxmodx/CForward.h

@@ -51,6 +51,10 @@
 
 const int FORWARD_MAX_PARAMS = 32;
 
+#define FORWARD_ONLY_OLD	1
+#define FORWARD_ONLY_NEW	2
+#define FORWARD_ALL			3
+
 enum ForwardExecType
 {
 	ET_IGNORE = 0,					// Ignore return vaue
@@ -107,7 +111,7 @@ class CForward
 	ForwardParam m_ParamTypes[FORWARD_MAX_PARAMS];
 
 public:
-	CForward(const char *name, ForwardExecType et, int numParams, const ForwardParam * paramTypes);
+	CForward(const char *name, ForwardExecType et, int numParams, const ForwardParam * paramTypes, int fwd_type=FORWARD_ALL);
 	CForward() {}		// leaves everything unitialized'
 	
 	cell execute(cell *params, ForwardPreparedArray *preparedArrays);
@@ -203,7 +207,7 @@ public:
 
 	// Interface
 	// Register normal forward
-	int registerForward(const char *funcName, ForwardExecType et, int numParams, const ForwardParam *paramTypes);
+	int registerForward(const char *funcName, ForwardExecType et, int numParams, const ForwardParam *paramTypes, int fwd_type=FORWARD_ALL);
 	// Register single plugin forward
 	int registerSPForward(const char *funcName, AMX *amx, int numParams, const ForwardParam * paramTypes);
 	int registerSPForward(int func, AMX *amx, int numParams, const ForwardParam * paramTypes);
@@ -227,7 +231,7 @@ public:
 
 // (un)register forward
 int registerForward(const char *funcName, ForwardExecType et, ...);
-int registerForwardC(const char *funcName, ForwardExecType et, cell *list, size_t num);
+int registerForwardC(const char *funcName, ForwardExecType et, cell *list, size_t num, int fwd_type=FORWARD_ALL);
 int registerSPForwardByName(AMX *amx, const char *funcName, ...);
 int registerSPForwardByNameC(AMX *amx, const char *funcName, cell *list, size_t num);
 int registerSPForward(AMX *amx, int func, ...);

amxmodx/amxmodx.cpp

@@ -3967,6 +3967,21 @@ static cell AMX_NATIVE_CALL CreateMultiForward(AMX *amx, cell *params)
 	return registerForwardC(funcname, static_cast<ForwardExecType>(params[2]), ps, count-2);
 }
 
+static cell AMX_NATIVE_CALL CreateMultiForwardEx(AMX *amx, cell *params)
+{
+	int len;
+	char *funcname = get_amxstring(amx, params[1], 0, len);
+
+	cell ps[FORWARD_MAX_PARAMS];
+	cell count = params[0] / sizeof(cell);
+	for (cell i=4; i<=count; i++)
+	{
+		ps[i-4] = *get_amxaddr(amx, params[i]);
+	}
+
+	return registerForwardC(funcname, static_cast<ForwardExecType>(params[2]), ps, count-3, params[3]);
+}
+
 static cell AMX_NATIVE_CALL CreateOneForward(AMX *amx, cell *params)
 {
 	CPluginMngr::CPlugin *p = g_plugins.findPlugin(params[1]);
@@ -4501,6 +4516,7 @@ AMX_NATIVE_INFO amxmodx_Natives[] =
 	{"CreateHudSyncObj",		CreateHudSyncObj},
 	{"CreateLangKey",			CreateLangKey},
 	{"CreateMultiForward",		CreateMultiForward},
+	{"CreateMultiForwardEx",	CreateMultiForwardEx},
 	{"CreateOneForward",		CreateOneForward},
 	{"DestroyForward",			DestroyForward},
 	{"ExecuteForward",			ExecuteForward},

plugins/include/amxconst.inc

@@ -277,6 +277,10 @@ enum {
 #define FP_STRING		2
 #define FP_ARRAY		4
 
+#define FORWARD_ONLY_OLD	1
+#define FORWARD_ONLY_NEW	2
+#define FORWARD_ALL		3
+
 #define MEXIT_ALL	1
 #define MEXIT_NORMAL	0
 #define MEXIT_NEVER	-1

plugins/include/amxmodx.inc

@@ -1016,11 +1016,20 @@ native set_addr_val(addr, val);
 
 
 /**
- * creates a multi-plugin forward.
+ * Creates a multi-plugin forward.
+ * Stop type must be one of the ET_ values in amxconst.inc
  * results will be > 0 for success
  */
 native CreateMultiForward(const name[], stop_type, ...);
 
+/**
+ * Creates a multi-forward plugin that can filter between old/new plugins.
+ * Old plugins are used by the AMX Mod backwards compatibility layer.
+ * Stop type must be one of the ET_ values in amxconst.inc
+ * Forward type must be one of the FORWARD_ values in amxconst.inc.
+ */
+native CreateMultiForwardEx(const name[], stop_type, forward_type, ...);
+
 /**
  * Creates a forward for one plugin.
  * Results will be > 0 for success.