java-topology/defects/sfml/patch/sfml-0004-window-tracking-set.patch
russell@unturf.com 6bafc7f5e9 sfml/angelscript/threejs/pygame: unit tests + patches + whitepaper (115 sites, 48 ecosystems)
SFML 5 defects: VideoMode dedup x3 (139x), allWindows erase (1001x), GL ext (149x)
AngelScript 3 defects: FindNewOwner (100x), CompileSwitch (250x)
Three.js 5 defects: WebGL binding (22x), StackNode filter (1875x), NodeBuilder (517x)
pygame 4 defects: remove_internal (3001x), spritecollide dokill (3001x), switch_layer (3001x)

Whitepaper: 98→115 sites, 44→48 ecosystems
All unit tests pass: 6/6 each
2026-03-27 11:57:12 -04:00

26 lines
1.1 KiB
Diff

Fixes sfml-0004: WindowImplX11 destructor uses std::find() on allWindows vector.
--- a/src/SFML/Window/Unix/WindowImplX11.cpp
+++ b/src/SFML/Window/Unix/WindowImplX11.cpp
@@ -63,7 +63,8 @@
namespace
{
- std::vector<sf::priv::WindowImplX11*> allWindows;
+ std::set<sf::priv::WindowImplX11*> allWindows; // FIX sfml-0004: O(1) insert/erase — CWE-407
sf::Mutex allWindowsMutex;
+ // Note: std::vector removed; iteration in allWindows loop at line 1153 uses range-for
}
@@ -777,7 +777,7 @@ WindowImplX11::~WindowImplX11()
Lock lock(allWindowsMutex);
- allWindows.erase(std::find(allWindows.begin(), allWindows.end(), this));
- // was: O(n) find then O(n) erase — CWE-407; closing N windows = O(n²)
+ allWindows.erase(this); // O(log n)
@@ -1598,7 +1598,7 @@ void WindowImplX11::initialize()
Lock lock(allWindowsMutex);
- allWindows.push_back(this);
+ allWindows.insert(this); // O(log n)
# The iteration at line 1153 (for itr : allWindows) works unchanged with std::set.
# No ordering guarantees were relied upon with the vector (LIFO ordering not used).