From 3d503948450d69293a3fdfec096e398fedf714f2 Mon Sep 17 00:00:00 2001
From: Stef Walter <stefw@gnome.org>
Date: Thu, 6 Dec 2012 22:42:02 +0100
Subject: Move debug and library code into the common/ subdirectory

Start using p11_ as our internal prefix rather than _p11_. We explicitly
export p11_kit_ so this is fine as far as visibility.

Move the threading, mutex, and module compat, dict, and array code
into the common directory too.

Take this opportunity to clean up a bit of internal API as well,
since so many lines are being touched internally.
---
 common/array.c | 119 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 119 insertions(+)
 create mode 100644 common/array.c

(limited to 'common/array.c')

diff --git a/common/array.c b/common/array.c
new file mode 100644
index 0000000..f645fd1
--- /dev/null
+++ b/common/array.c
@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) 2011 Collabora Ltd.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *     * Redistributions of source code must retain the above
+ *       copyright notice, this list of conditions and the
+ *       following disclaimer.
+ *     * Redistributions in binary form must reproduce the
+ *       above copyright notice, this list of conditions and
+ *       the following disclaimer in the documentation and/or
+ *       other materials provided with the distribution.
+ *     * The names of contributors to this software may not be
+ *       used to endorse or promote products derived from this
+ *       software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+ * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ */
+
+#include "config.h"
+
+#include "array.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+static int
+maybe_expand_array (p11_array *array,
+                    unsigned int length)
+{
+	unsigned int new_allocated;
+	void **new_memory;
+
+	if (length <= array->allocated)
+		return 1;
+
+	new_allocated = array->allocated + 16;
+	if (new_allocated < length)
+		new_allocated = length;
+
+	new_memory = realloc (array->elem, new_allocated * sizeof (void*));
+	if (new_memory == NULL)
+		return 0;
+
+	array->elem = new_memory;
+	array->allocated = new_allocated;
+	return 1;
+}
+
+p11_array *
+p11_array_new (p11_destroyer destroyer)
+{
+	p11_array *array;
+
+	array = calloc (1, sizeof (p11_array));
+	if (array == NULL)
+		return NULL;
+
+	if (!maybe_expand_array (array, 2)) {
+		p11_array_free (array);
+		return NULL;
+	}
+
+	array->destroyer = destroyer;
+	return array;
+}
+
+void
+p11_array_free (p11_array *array)
+{
+	unsigned int i;
+
+	if (array == NULL)
+		return;
+
+	if (array->destroyer) {
+		for (i = 0; i < array->num; i++)
+			(array->destroyer) (array->elem[i]);
+	}
+
+	free (array->elem);
+	free (array);
+}
+
+int
+p11_array_push (p11_array *array,
+                void *value)
+{
+	if (!maybe_expand_array (array, array->num + 1))
+		return 0;
+
+	array->elem[array->num] = value;
+	array->num++;
+	return 1;
+}
+
+void
+p11_array_remove (p11_array *array,
+                  unsigned int index)
+{
+	if (array->destroyer)
+		(array->destroyer) (array->elem[index]);
+	memmove (array->elem + index, array->elem + index + 1,
+	         (array->num - (index + 1)) * sizeof (void*));
+	array->num--;
+}
-- 
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