1 files changed, 58 insertions, 0 deletions
diff --git a/sysdatacache_windows.go b/sysdatacache_windows.go
new file mode 100644
index 0000000..1a45d97
--- /dev/null
+++ b/sysdatacache_windows.go
@@ -0,0 +1,58 @@
+// 11 february 2014
+package main
+
+import (
+	"fmt"
+	"sync"
+)
+
+// I need a way to get a sysData for a given HWND or a given HWND/control ID. So, this.
+
+type sdcEntry struct {
+	s			*sysData
+	members		map[_HMENU]*sysData
+}
+
+var (
+	sysDatas = map[_HWND]*sdcEntry{}
+	sysDatasLock sys.Mutex
+)
+
+func addSysData(hwnd _HWND, s *sysData) {
+	sysDatasLock.Lock()
+	defer sysDatasLock.Unlock()
+	sysDatas[hwnd] = &sdcEntry{
+		s:			s,
+		members:		map[_HMENU]*sysData{},
+	}
+}
+
+func addIDSysData(hwnd _HWND, id _HMENU, s *sysData) {
+	sysDatasLock.Lock()
+	defer sysDatasLock.Unlock()
+	if ss, ok := sysDatas[hwnd]; ok {
+		ss.members[id] = s
+	}
+	panic(fmt.Sprintf("adding ID %d to nonexistent HWND %d\n", id, hwnd))
+}
+
+func getSysData(hwnd _HWND) *sysData {
+	sysDatasLock.Lock()
+	defer sysDatasLock.Unlock()
+	if ss, ok := sysDatas[hwnd]; ok {
+		return ss.s
+	}
+	panic(fmt.Sprintf("getting nonexistent HWND %d\n", hwnd))
+}
+
+func getIDSysData(hwnd _HWND, id _HMENU) *sysData {
+	sysDatasLock.Lock()
+	defer sysDatasLock.Unlock()
+	if ss, ok := sysDatas[hwnd]; ok {
+		if xx, ok := ss.members[id]; ok {
+			return xx
+		}
+		panic(fmt.Sprintf("getting nonexistent ID %d for HWND %d\n", id, hwnd))
+	}
+	panic(fmt.Sprintf("getting nonexistent HWND %d\n", hwnd))
+}