From 93d52e994ccf5597413180c5a3c401286112891d Mon Sep 17 00:00:00 2001
From: Jose Antonio Ortega Ruiz <jao@gnu.org>
Date: Mon, 7 May 2001 23:02:25 +0000
Subject: mix_device_t: virtual destructor added

---
 mixlib/mix_device.c  |  3 +--
 mixlib/mix_vm.c      |  6 ++++++
 mixlib/xmix_device.c | 11 +++++++++--
 mixlib/xmix_device.h |  4 +++-
 4 files changed, 19 insertions(+), 5 deletions(-)

diff --git a/mixlib/mix_device.c b/mixlib/mix_device.c
index 6870427..2f3f702 100644
--- a/mixlib/mix_device.c
+++ b/mixlib/mix_device.c
@@ -65,8 +65,7 @@ mix_device_delete (mix_device_t *dev)
 {
   if (dev != NULL)
     {
-      if (dev->type != mix_dev_CONSOLE && GET_FILE_(dev) != NULL)
-	mix_file_delete (GET_FILE_(dev));
+      (dev->vtable->destroy) (dev);
       g_free (dev);
     }
 }
diff --git a/mixlib/mix_vm.c b/mixlib/mix_vm.c
index 39b3e6f..4446bcf 100644
--- a/mixlib/mix_vm.c
+++ b/mixlib/mix_vm.c
@@ -57,6 +57,12 @@ vm_reset_ (mix_vm_t *vm)
       mix_src_file_delete (vm->src_file);
       vm->src_file = NULL;
     }
+  for (k = 0; k < BD_NO_; ++k)
+    if (vm->devices[k] != NULL)
+      {
+	mix_device_delete (vm->devices[k]);
+	vm->devices[k] = NULL;
+      }
   bp_clear_all_ (vm);
 }
 
diff --git a/mixlib/xmix_device.c b/mixlib/xmix_device.c
index c93153a..db343ad 100644
--- a/mixlib/xmix_device.c
+++ b/mixlib/xmix_device.c
@@ -1,7 +1,7 @@
 /* -*-c-*- -------------- xmix_device.c :
  * Implementation of the functions declared in xmix_device.h
  * ------------------------------------------------------------------
- *  Last change: Time-stamp: "2001-05-04 23:40:31 jao"
+ *  Last change: Time-stamp: "2001-05-07 23:49:31 jao"
  * ------------------------------------------------------------------
  * Copyright (C) 2001 Free Software Foundation, Inc.
  *  
@@ -169,8 +169,15 @@ busy_ (const mix_device_t *dev)
   return (!mix_io_is_ready (GET_CHANNEL_(dev)));
 }
 
+static void
+destroy_ (mix_device_t *dev)
+{
+  if (dev->type != mix_dev_CONSOLE && GET_FILE_(dev) != NULL)
+    mix_file_delete (GET_FILE_(dev));
+}
+
 static mix_device_vtable_t VTABLE_ = {
-  write_, read_, ioc_, busy_
+  write_, read_, ioc_, busy_, destroy_
 };
 
 const mix_device_vtable_t * DEF_DEV_VTABLE_ = &VTABLE_;
diff --git a/mixlib/xmix_device.h b/mixlib/xmix_device.h
index 4c2866a..f44409f 100644
--- a/mixlib/xmix_device.h
+++ b/mixlib/xmix_device.h
@@ -1,7 +1,7 @@
 /* -*-c-*- ---------------- xmix_device.h :
  * Protected declarations for mix_device_t
  * ------------------------------------------------------------------
- *  Last change: Time-stamp: <2001-05-04 23:35:39 jao>
+ *  Last change: Time-stamp: <2001-05-07 23:59:35 jao>
  * ------------------------------------------------------------------
  * Copyright (C) 2001 Free Software Foundation, Inc.
  *  
@@ -33,6 +33,7 @@ typedef gboolean (*mix_dev_write_func_t) (mix_device_t *, const mix_word_t *);
 typedef gboolean (*mix_dev_read_func_t) (mix_device_t *, mix_word_t *);
 typedef gboolean (*mix_dev_ioc_func_t) (mix_device_t *, mix_short_t);
 typedef gboolean (*mix_dev_busy_func_t) (const mix_device_t *);
+typedef void (*mix_dev_destroy_t) (mix_device_t *);
 
 typedef struct mix_device_vtable_t
 {
@@ -40,6 +41,7 @@ typedef struct mix_device_vtable_t
   mix_dev_read_func_t  read;
   mix_dev_ioc_func_t   ioc;
   mix_dev_busy_func_t  busy;
+  mix_dev_destroy_t destroy;
 } mix_device_vtable_t;
 
 /* default vtable */
-- 
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