added a reset function to buffer_array

git-svn-id: svn://svn.lighttpd.net/lighttpd/branches/lighttpd-1.3.x@425 152afb58-edef-0310-8abb-c4023f1b3aa9

src/buffer.c

@@ -414,6 +414,20 @@ buffer_array* buffer_array_init(void) {
 	return b;
 }
 
+void buffer_array_reset(buffer_array *b) {
+	size_t i;
+	
+	if (!b) return;
+	
+	/* if they are too large, reduce them */
+	for (i = 0; i < b->used; i++) {
+		buffer_reset(b->ptr[i]);
+	}
+	
+	b->used = 0;
+}
+
+
 /**
  * free the buffer_array 
  * 
@@ -432,6 +446,7 @@ void buffer_array_free(buffer_array *b) {
 
 buffer *buffer_array_append_get_buffer(buffer_array *b) {
 	size_t i;
+	
 	if (b->size == 0) {
 		b->size = 16;
 		b->ptr = malloc(sizeof(*b->ptr) * b->size);

src/buffer.h

@@ -35,6 +35,7 @@ typedef struct {
 
 buffer_array* buffer_array_init(void);
 void buffer_array_free(buffer_array *b);
+void buffer_array_reset(buffer_array *b);
 buffer *buffer_array_append_get_buffer(buffer_array *b);
 
 buffer* buffer_init(void);