From d123e0ce94bf90b2adb0a4000930eb467e293226 Mon Sep 17 00:00:00 2001
From: sje <sje@4f64403b-2f21-0410-a795-97e2b3489a10>
Date: Wed, 1 Nov 2006 14:48:34 +0000
Subject: git-svn-id: https://server.scottellis.com.au/svn/mim_plugs@16
 4f64403b-2f21-0410-a795-97e2b3489a10

---
 updater/common.cpp | 72 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 updater/common.cpp

(limited to 'updater/common.cpp')

diff --git a/updater/common.cpp b/updater/common.cpp
new file mode 100644
index 0000000..f7b240b
--- /dev/null
+++ b/updater/common.cpp
@@ -0,0 +1,72 @@
+#include "common.h"
+
+UpdateList::UpdateList(): count(0), head(0), tail(0) {
+}
+
+UpdateList::~UpdateList() {
+	clear();
+}
+
+UpdateList::UpdateList(UpdateList &source): count(0), head(0), tail(0) {
+	for(source.reset(); source.current(); source.next()) 
+		push_back(*source.current());
+}
+
+void UpdateList::clear() {
+	Node *current;
+	while(head) {
+		current = head;
+		head = head->next;
+		delete current;
+	}
+
+	count = 0;
+	head = tail = 0;
+	reset();
+}
+
+int UpdateList::size() {
+	return count;
+}
+
+void UpdateList::reset() {
+	it_current = head;
+}
+
+void UpdateList::erase() {
+	if(it_current) {
+		if(head == it_current) head = head->next;
+		if(tail == it_current) tail = tail->prev;
+
+		if(it_current->next) it_current->next->prev = it_current->prev;
+		if(it_current->prev) it_current->prev->next = it_current->next;
+
+		delete it_current;
+		count--;
+		reset();
+	}
+}
+
+void UpdateList::next() {
+	if(it_current) it_current = (Node *)it_current->next;
+}
+
+UpdateInternal *UpdateList::current() {
+	return (it_current ? &it_current->ui : 0);
+}
+
+void UpdateList::push_back(UpdateInternal &update) {
+	if(tail) {
+		tail->next = new Node;
+		tail->next->prev = tail;
+		tail = tail->next;
+	} else {
+		head = tail = new Node;
+	}
+	tail->ui = update;
+	count++;
+}
+
+UpdateInternal &UpdateList::back() {
+	return tail->ui;
+}
-- 
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