wmi-1.3.16 from opsview.com

2019-02-16 00:16:52 +01:00
parent 163fdd3d1b
commit 17b3af2911
2146 changed files with 678824 additions and 0 deletions
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+/**
+ *	@file 	mprArray.c
+ *	@brief	Growable array structure
+ *	@overview Simple growable array structure.
+ *	@remarks Most routines in this file are not thread-safe. It is the callers 
+ *		responsibility to perform all thread synchronization.
+ */
+
+/*
+ *	@copy	default
+ *	
+ *	Copyright (c) Mbedthis Software LLC, 2003-2006. All Rights Reserved.
+ *	
+ *	This software is distributed under commercial and open source licenses.
+ *	You may use the GPL open source license described below or you may acquire 
+ *	a commercial license from Mbedthis Software. You agree to be fully bound 
+ *	by the terms of either license. Consult the LICENSE.TXT distributed with 
+ *	this software for full details.
+ *	
+ *	This software is open source; you can redistribute it and/or modify it 
+ *	under the terms of the GNU General Public License as published by the 
+ *	Free Software Foundation; either version 2 of the License, or (at your 
+ *	option) any later version. See the GNU General Public License for more 
+ *	details at: http://www.mbedthis.com/downloads/gplLicense.html
+ *	
+ *	This program is distributed WITHOUT ANY WARRANTY; without even the 
+ *	implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
+ *	
+ *	This GPL license does NOT permit incorporating this software into 
+ *	proprietary programs. If you are unable to comply with the GPL, you must
+ *	acquire a commercial license to use this software. Commercial licenses 
+ *	for this software and support services are available from Mbedthis 
+ *	Software at http://www.mbedthis.com 
+ *	
+ *	@end
+ */
+
+/********************************** Includes **********************************/
+
+#include	"mpr.h"
+
+/******************************************************************************/
+/*
+ *	Create a general growable array structure. Use mprFree to destroy.
+ */
+
+MprArray *mprCreateItemArrayInternal(MPR_LOC_DEC(ctx, loc), int initialSize, 
+	int maxSize)
+{
+	MprArray	*array;
+	int			size;
+
+	mprAssert(initialSize <= maxSize);
+
+	array = (MprArray*) mprSlabAllocZeroedBlock(MPR_LOC_PASS(ctx, loc), 
+		sizeof(MprArray), 0);
+	if (array == 0) {
+		return 0;
+	}
+
+	if (initialSize == 0) {
+		initialSize = MPR_ARRAY_INCR;
+	}
+	if (maxSize == 0) {
+		maxSize = MAXINT;
+	}
+	size = initialSize * sizeof(void*);
+
+	array->items = (void**) mprSlabAllocBlock(MPR_LOC_PASS(array, loc), 
+		size, 0);
+
+	if (array->items == 0) {
+		mprFree(array);
+		return 0;
+	}
+
+	array->capacity = initialSize;
+	array->maxSize = maxSize;
+	array->incr = min(initialSize * 2, (array->maxSize - array->length));
+	array->length = 0;
+
+	return array;
+}
+
+/******************************************************************************/
+/*
+ *	Add an item to the array
+ */
+
+int mprAddItem(MprArray *array, void *item)
+{
+	int		memsize, index, len;
+
+	mprAssert(array);
+	mprAssert(array->capacity >= 0);
+	mprAssert(array->length >= 0);
+
+	if (array->length < array->capacity) {
+		/*
+		 *	Room to fit in the current capacity
+	 	 */
+		index = array->length++;
+		array->items[index] = item;
+		return index;
+	}
+	mprAssert(array->length == array->capacity);
+
+	/*
+	 *	Need to grow the array
+	 */
+	if (array->capacity >= array->maxSize) {
+		mprAssert(array->capacity < array->maxSize);
+		return MPR_ERR_TOO_MANY;
+	}
+
+	len = array->capacity + array->incr;
+	memsize = len * sizeof(void*);
+
+	/*
+	 *	Grow the array of items
+	 */
+
+	array->items = (void**) mprRealloc(array, array->items, memsize);
+
+	/*
+	 *	Zero the new portion
+	 */
+	memset(&array->items[array->capacity], 0, sizeof(void*) * array->incr);
+	array->capacity = len;
+
+	array->incr = min(array->incr * 2, (array->maxSize - array->length));
+
+	index = array->length++;
+	array->items[index] = item;
+
+	return index;
+}
+
+/******************************************************************************/
+/*
+ *	Remove an item from the array
+ */
+
+int mprRemoveItem(MprArray *array, void *item)
+{
+	int		index;
+
+	mprAssert(array);
+	mprAssert(array->capacity > 0);
+	mprAssert(array->length > 0);
+
+	index = mprFindItem(array, item);
+	if (index < 0) {
+		return index;
+	}
+
+	return mprRemoveItemByIndex(array, index);
+}
+
+/******************************************************************************/
+/*
+ *	Remove an index from the array
+ */
+
+int mprRemoveItemByIndex(MprArray *array, int index)
+{
+	void	**items;
+	int		i;
+
+	mprAssert(array);
+	mprAssert(array->capacity > 0);
+	mprAssert(index >= 0 && index < array->capacity);
+	mprAssert(array->items[index] != 0);
+	mprAssert(array->length > 0);
+
+	if (index < 0 || index >= array->length) {
+		return MPR_ERR_NOT_FOUND;
+	}
+
+	/*
+	 *	Copy down to compress
+	 */
+	items = array->items;
+	for (i = index; i < (array->length - 1); i++) {
+		items[i] = items[i + 1];
+	}
+	array->length--;
+
+#if BLD_DEBUG
+	if (array->length < array->capacity) {
+		items[array->length] = 0;
+	}
+#endif
+	return 0;
+}
+
+/******************************************************************************/
+
+int mprRemoveRangeOfItems(MprArray *array, int start, int end)
+{
+	void	**items;
+	int		i, count;
+
+	mprAssert(array);
+	mprAssert(array->capacity > 0);
+	mprAssert(array->length > 0);
+	mprAssert(start > end);
+
+	if (start < 0 || start >= array->length) {
+		return MPR_ERR_NOT_FOUND;
+	}
+	if (end < 0 || end >= array->length) {
+		return MPR_ERR_NOT_FOUND;
+	}
+	if (start > end) {
+		return MPR_ERR_BAD_ARGS;
+	}
+
+	/*
+	 *	Copy down to compress
+	 */
+	items = array->items;
+	count = end - start;
+	for (i = start; i < (array->length - count); i++) {
+		items[i] = items[i + count];
+	}
+	array->length -= count;
+
+#if BLD_DEBUG
+	if (array->length < array->capacity) {
+		for (i = array->length; i < array->capacity; i++) {
+			items[i] = 0;
+		}
+	}
+#endif
+	return 0;
+}
+
+/******************************************************************************/
+
+void *mprGetItem(MprArray *array, int index)
+{
+	mprAssert(array);
+
+	if (index < 0 || index >= array->length) {
+		return 0;
+	}
+	return array->items[index];
+}
+
+/******************************************************************************/
+
+void *mprGetFirstItem(MprArray *array, int *last)
+{
+	mprAssert(array);
+	mprAssert(last);
+
+	if (array == 0) {
+		return 0;
+	}
+
+	*last = 0;
+
+	if (array->length == 0) {
+		return 0;
+	}
+	return array->items[0];
+}
+
+/******************************************************************************/
+
+void *mprGetNextItem(MprArray *array, int *last)
+{
+	int		index;
+
+	mprAssert(array);
+	mprAssert(last);
+	mprAssert(*last >= 0);
+
+	index = *last;
+
+	if (++index < array->length) {
+		*last = index;
+		return array->items[index];
+	}
+	return 0;
+}
+
+/******************************************************************************/
+
+void *mprGetPrevItem(MprArray *array, int *last)
+{
+	int		index;
+
+	mprAssert(array);
+	mprAssert(last);
+	mprAssert(*last >= 0);
+
+	if (array == 0) {
+		return 0;
+	}
+
+	index = *last;
+
+	if (--index < array->length && index >= 0) {
+		*last = index;
+		return array->items[index];
+	}
+	return 0;
+}
+
+/******************************************************************************/
+
+int mprGetItemCount(MprArray *array)
+{
+	mprAssert(array);
+
+	if (array == 0) {
+		return 0;
+	}
+
+	return array->length;
+}
+
+/******************************************************************************/
+
+int mprGetItemCapacity(MprArray *array)
+{
+	mprAssert(array);
+
+	if (array == 0) {
+		return 0;
+	}
+
+	return array->capacity;
+}
+
+/******************************************************************************/
+
+void mprClearAndFreeItems(MprArray *array)
+{
+	int		i;
+
+	mprAssert(array);
+
+	for (i = 0; i < array->length; i++) {
+		mprFree(array->items[i]);
+	}
+}
+
+/******************************************************************************/
+
+void mprClearItems(MprArray *array)
+{
+	mprAssert(array);
+
+	array->length = 0;
+}
+
+/******************************************************************************/
+
+int mprFindItem(MprArray *array, void *item)
+{
+	int		i;
+
+	mprAssert(array);
+	
+	for (i = 0; i < array->length; i++) {
+		if (array->items[i] == item) {
+			return i;
+		}
+	}
+	return MPR_ERR_NOT_FOUND;
+}
+
+/******************************************************************************/
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ * vim:tw=78
+ * vim600: sw=4 ts=4 fdm=marker
+ * vim<600: sw=4 ts=4
+ */