* dev.c dev.h: Moved defunct first_device() and next_device()

to devlist.c

	* devlist.c, devlist.h: Another step towards
	dynamically loadable devices.  The first_device() and
	next_device() functions abstract away the actual
	implementation of the devices list.  Currently it is a fixed
	length array, when we start supporting dynamically loaded devices,
	this is no longer true.

	* test_devlist.c: Checks the implementation of first_device()
        and next_device().

	* Makefile.am, .cvsignore: Updates for new files.

src/spicelib/.cvsignore

@@ -1,3 +1,5 @@
 Makefile.in
 Makefile
 .deps
+.libs
+test_devlist

src/spicelib/devices/ChangeLog

@@ -1,3 +1,15 @@
+2000-07-07  Arno W. Peters  <A.W.Peters@ieee.org>
+
+	* devlist.c, devlist.h: Another step towards
+	dynamically loadable devices.  The first_device() and
+	next_device() functions abstract away the actual
+	implementation of the devices list.  Currently it is a fixed
+	length array, when we start supporting dynamically loaded devices,
+	this is no longer true.
+
+	* test_devlist.c: Checks the implementation of first_device()
+	and next_device().
+
 2000-04-04  Paolo Nenzi <p.nenzi@ieee.org>
 
 	* Makefile.am: Added support for BSIM4

src/spicelib/devices/Makefile.am

@@ -37,6 +37,8 @@ lib_LIBRARIES = libdev.a
 libdev_a_SOURCES = 	\
 	dev.c		\
 	dev.h		\
+	devlist.c	\
+	devlist.h	\
 	devsup.c	\
 	cktaccept.c	\
 	cktaccept.h	\
@@ -46,6 +48,15 @@ libdev_a_SOURCES = 	\
 	cktfinddev.c	\
 	cktinit.c
 
+bin_PROGRAMS = test_devlist
+
+test_devlist_SOURCES =	\
+	devlist.c	\
+	devlist.h	\
+	test_devlist.c
+
+TESTS = test_devlist
+
 EXTRA_DIST = README
 
 INCLUDES = -I$(top_srcdir)/src/include

src/spicelib/devices/dev.c

@@ -173,28 +173,3 @@ devices(void)
 }
 
 
-/* Returns the first device in the list, or NULL if the list is empty */
-SPICEdev *
-first_device(void)
-{
-    return DEVices[0];
-}
-
-
-/* Returns the next device on the list, or NULL if no more devices
-   left. */
-SPICEdev *
-next_device(SPICEdev *current)
-{
-    SPICEdev *ret;
-    int index;
-
-    index = (current - first_device()) / sizeof(SPICEdev *);
-    if (index < num_devices()) {
-	ret = DEVices[index + 1];
-    } else {
-	ret = NULL;
-    }
-
-    return ret;
-}

src/spicelib/devices/dev.h

@@ -5,8 +5,6 @@
 int num_devices(void);
 IFdevice **devices_ptr(void);
 SPICEdev **devices(void);
-SPICEdev *first_device(void);
-SPICEdev *next_device(SPICEdev *current);
 
 #endif
 

src/spicelib/devices/devlist.c

@@ -0,0 +1,64 @@
+/* NG-SPICE -- An electrical circuit simulator
+ *
+ * Copyright (c) 1990 University of California
+ * Copyright (c) 2000 Arno W. Peters
+ *
+ * Permission to use, copy, modify, and distribute this software and
+ * its documentation without fee, and without a written agreement is
+ * hereby granted, provided that the above copyright notice, this
+ * paragraph and the following three paragraphs appear in all copies.
+ *
+ * This software program and documentation are copyrighted by their
+ * authors. The software program and documentation are supplied "as
+ * is", without any accompanying services from the authors. The
+ * authors do not warrant that the operation of the program will be
+ * uninterrupted or error-free. The end-user understands that the
+ * program was developed for research purposes and is advised not to
+ * rely exclusively on the program for any reason.
+ * 
+ * IN NO EVENT SHALL THE AUTHORS BE LIABLE TO ANY PARTY FOR DIRECT,
+ * INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING
+ * LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
+ * DOCUMENTATION, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE. THE AUTHORS SPECIFICALLY DISCLAIMS ANY
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE
+ * SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE AUTHORS
+ * HAVE NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
+ * ENHANCEMENTS, OR MODIFICATIONS. */
+
+#include <config.h>
+
+#include <devdefs.h>
+#include <ifsim.h>
+
+#include "dev.h"
+
+
+
+/* Returns the first device in the list, or NULL if the list is empty */
+SPICEdev **
+first_device(void)
+{
+    return devices();
+}
+
+
+/* Returns the next device on the list, or NULL if no more devices
+   left. */
+SPICEdev **
+next_device(SPICEdev **current)
+{
+    int index;
+    SPICEdev **ret;
+
+    index = (current - devices())/sizeof(SPICEdev *);
+    printf("index: %d\n", index);
+    if (index < num_devices()) {
+	ret = current + sizeof(SPICEdev *);
+    } else {
+	ret = NULL;
+    }
+
+    return ret;
+}

src/spicelib/devices/devlist.h

@@ -0,0 +1,35 @@
+/* NG-SPICE -- An electrical circuit simulator
+ *
+ * Copyright (c) 2000 Arno W. Peters
+ *
+ * Permission to use, copy, modify, and distribute this software and
+ * its documentation without fee, and without a written agreement is
+ * hereby granted, provided that the above copyright notice, this
+ * paragraph and the following three paragraphs appear in all copies.
+ *
+ * This software program and documentation are copyrighted by their
+ * authors. The software program and documentation are supplied "as
+ * is", without any accompanying services from the authors. The
+ * authors do not warrant that the operation of the program will be
+ * uninterrupted or error-free. The end-user understands that the
+ * program was developed for research purposes and is advised not to
+ * rely exclusively on the program for any reason.
+ * 
+ * IN NO EVENT SHALL THE AUTHORS BE LIABLE TO ANY PARTY FOR DIRECT,
+ * INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING
+ * LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
+ * DOCUMENTATION, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE. THE AUTHORS SPECIFICALLY DISCLAIMS ANY
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE
+ * SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE AUTHORS
+ * HAVE NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
+ * ENHANCEMENTS, OR MODIFICATIONS. */
+
+#ifndef _DEVLIST_H
+#define _DEVLIST_H
+
+SPICEdev **first_device(void);
+SPICEdev **next_device(SPICEdev **current);
+
+#endif

src/spicelib/devices/test_devlist.c

@@ -0,0 +1,73 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <ifsim.h>
+#include <devdefs.h>
+
+#include "devlist.h"
+
+
+SPICEdev dummy = {
+    {
+        "Dummy",
+        "A dummy element",
+
+        NULL,
+        NULL,
+        NULL,
+
+        NULL,
+        NULL,
+
+        NULL,
+        NULL,
+	0
+    },
+
+    NULL,
+};
+
+
+SPICEdev *DEVices[] = {
+    &dummy,
+    &dummy,
+    &dummy,
+    &dummy
+};
+
+
+int
+num_devices(void)
+{
+    return sizeof(DEVices)/sizeof(SPICEdev *);
+}
+
+SPICEdev **
+devices(void)
+{
+    return DEVices;
+}
+
+
+int
+main(void)
+{
+    SPICEdev **dev;
+    int count = 0;
+    int ret;
+
+    for (dev = first_device(); dev != NULL; dev = next_device(dev)) {
+	printf("count: %d\n", count);
+	count++;
+    }
+
+    if (count == num_devices() + 1) {
+	printf("PASSED");
+	ret = EXIT_SUCCESS;
+    } else {
+	printf("FAILED");
+	ret = EXIT_FAILURE;
+    }
+    printf(": test_dev\n");
+    return ret;
+}