From 74eeba5c3501477e4be5104dab90818ccdaa4e5d Mon Sep 17 00:00:00 2001
From: PGGB <dnagel@outlook.com>
Date: Sun, 14 Jul 2013 19:37:45 +0200
Subject: [PATCH] MAME feature patch: Add post-save callbacks

---
 mame/src/emu/save.c | 27 +++++++++++++++++++++++++++
 mame/src/emu/save.h |  2 ++
 2 files changed, 29 insertions(+)

diff --git a/mame/src/emu/save.c b/mame/src/emu/save.c
index 7a60aaa..89ae385 100755
--- a/mame/src/emu/save.c
+++ b/mame/src/emu/save.c
@@ -94,6 +94,7 @@ save_manager::save_manager(running_machine &machine)
 		m_illegal_regs(0),
 		m_entry_list(machine.respool()),
 		m_presave_list(machine.respool()),
+        m_postsave_list(machine.respool()),
 		m_postload_list(machine.respool())
 {
 }
@@ -153,6 +154,27 @@ void save_manager::register_presave(save_prepost_delegate func)
 }
 
 
+//-------------------------------------------------
+//  register_postsave - register a post-save
+//  function callback
+//-------------------------------------------------
+
+void save_manager::register_postsave(save_prepost_delegate func)
+{
+	// check for invalid timing
+	if (!m_reg_allowed)
+		fatalerror("Attempt to register callback function after state registration is closed!\n");
+
+	// scan for duplicates and push through to the end
+	for (state_callback *cb = m_postsave_list.first(); cb != NULL; cb = cb->next())
+		if (cb->m_func == func)
+			fatalerror("Duplicate save state function (%s/%s)\n", cb->m_func.name(), func.name());
+
+	// allocate a new entry
+	m_postsave_list.append(*auto_alloc(machine(), state_callback(func)));
+}
+
+
 //-------------------------------------------------
 //  state_save_register_postload -
 //  register a post-load function callback
@@ -329,6 +351,11 @@ save_error save_manager::write_file(emu_file &file)
 		if (file.write(entry->m_data, totalsize) != totalsize)
 			return STATERR_WRITE_ERROR;
 	}
+
+    // call the post-save functions
+	for (state_callback *func = m_postsave_list.first(); func != NULL; func = func->next())
+		func->m_func();
+    
 	return STATERR_NONE;
 }
 
diff --git a/mame/src/emu/save.h b/mame/src/emu/save.h
index 09eb01c..2dcf66e 100755
--- a/mame/src/emu/save.h
+++ b/mame/src/emu/save.h
@@ -121,6 +121,7 @@ public:
 
 	// function registration
 	void register_presave(save_prepost_delegate func);
+    void register_postsave(save_prepost_delegate func);
 	void register_postload(save_prepost_delegate func);
 
 	// generic memory registration
@@ -219,6 +220,7 @@ private:
 
 	simple_list<state_entry> m_entry_list;          // list of reigstered entries
 	simple_list<state_callback> m_presave_list;     // list of pre-save functions
+    simple_list<state_callback> m_postsave_list;    // list of post-save functions
 	simple_list<state_callback> m_postload_list;    // list of post-load functions
 };