ui: add basic double update guard

zx2c4 · zx2c4 · commit ac139570c721 · 2023-05-15T18:22:12.000+02:00
Signed-off-by: Jason A. Donenfeld &lt;Jason@zx2c4.com&gt;
diff --git a/ui/src/main/java/com/wireguard/android/updater/Updater.kt b/ui/src/main/java/com/wireguard/android/updater/Updater.kt
@@ -312,13 +312,18 @@ object Updater {
         session.close()
     }
 
+    private var updating = false
     private suspend fun downloadAndUpdateWrapErrors() {
+        if (updating)
+            return
+        updating = true
         try {
             downloadAndUpdate()
         } catch (e: Throwable) {
             Log.e(TAG, "Update failure", e)
             emitProgress(Progress.Failure(e))
         }
+        updating = false
     }
 
     private class InstallReceiver : BroadcastReceiver() {

Original file line number	Diff line number	Diff line change
`@@ -312,13 +312,18 @@ object Updater {`
`312`	`312`	`session.close()`
`313`	`313`	`}`
`314`	`314`
	`315`	`+ private var updating = false`
`315`	`316`	`private suspend fun downloadAndUpdateWrapErrors() {`
	`317`	`+ if (updating)`
	`318`	`+ return`
	`319`	`+ updating = true`
`316`	`320`	`try {`
`317`	`321`	`downloadAndUpdate()`
`318`	`322`	`} catch (e: Throwable) {`
`319`	`323`	`Log.e(TAG, "Update failure", e)`
`320`	`324`	`emitProgress(Progress.Failure(e))`
`321`	`325`	`}`
	`326`	`+ updating = false`
`322`	`327`	`}`
`323`	`328`
`324`	`329`	`private class InstallReceiver : BroadcastReceiver() {`