Do not fail when signal handling machinery is unavailable in AgentPremain

qwwdfsad · qwwdfsad · commit d0bbc7fa6b62 · 2018-12-11T19:55:31.000+03:00
diff --git a/core/kotlinx-coroutines-debug/src/AgentPremain.kt b/core/kotlinx-coroutines-debug/src/AgentPremain.kt
@@ -19,8 +19,12 @@ internal object AgentPremain {
     }
 
     private fun installSignalHandler() {
-        Signal.handle(Signal("TRAP") ) { // kill -5
-            DebugProbes.dumpCoroutines()
+        try {
+            Signal.handle(Signal("TRAP")) { // kill -5
+                DebugProbes.dumpCoroutines()
+            }
+        } catch (t: Throwable) {
+            System.err.println("Failed to install signal handler: $t")
         }
     }
 }

Original file line number	Diff line number	Diff line change
`@@ -19,8 +19,12 @@ internal object AgentPremain {`
`19`	`19`	`}`
`20`	`20`
`21`	`21`	`private fun installSignalHandler() {`
`22`		`- Signal.handle(Signal("TRAP") ) { // kill -5`
`23`		`- DebugProbes.dumpCoroutines()`
	`22`	`+ try {`
	`23`	`+ Signal.handle(Signal("TRAP")) { // kill -5`
	`24`	`+ DebugProbes.dumpCoroutines()`
	`25`	`+ }`
	`26`	`+ } catch (t: Throwable) {`
	`27`	`+ System.err.println("Failed to install signal handler: $t")`
`24`	`28`	`}`
`25`	`29`	`}`
`26`	`30`	`}`