From 2d47eaa13fbb23c38247dad27df8ea8625430ce6 Mon Sep 17 00:00:00 2001
From: Philipp Wollermann <philwo@google.com>
Date: Mon, 8 Feb 2016 14:02:24 +0000
Subject: Make The Build Faster: More explicit exception handling in the worker
 strategy.

--
MOS_MIGRATED_REVID=114102899
---
 .../devtools/build/lib/worker/WorkerPool.java      | 23 ++++++++++++++++++++++
 .../build/lib/worker/WorkerSpawnStrategy.java      |  6 +++---
 2 files changed, 26 insertions(+), 3 deletions(-)

(limited to 'src/main')

diff --git a/src/main/java/com/google/devtools/build/lib/worker/WorkerPool.java b/src/main/java/com/google/devtools/build/lib/worker/WorkerPool.java
index 03eb7d6a54..bf5e458a23 100644
--- a/src/main/java/com/google/devtools/build/lib/worker/WorkerPool.java
+++ b/src/main/java/com/google/devtools/build/lib/worker/WorkerPool.java
@@ -13,12 +13,15 @@
 // limitations under the License.
 package com.google.devtools.build.lib.worker;
 
+import com.google.common.base.Throwables;
 import com.google.devtools.build.lib.events.Reporter;
 import com.google.devtools.build.lib.vfs.Path;
 
 import org.apache.commons.pool2.impl.GenericKeyedObjectPool;
 import org.apache.commons.pool2.impl.GenericKeyedObjectPoolConfig;
 
+import java.io.IOException;
+
 import javax.annotation.concurrent.ThreadSafe;
 
 /**
@@ -47,4 +50,24 @@ final class WorkerPool extends GenericKeyedObjectPool<WorkerKey, Worker> {
   public void setVerbose(boolean verbose) {
     this.workerFactory.setVerbose(verbose);
   }
+
+  @Override
+  public Worker borrowObject(WorkerKey key) throws IOException, InterruptedException {
+    try {
+      return super.borrowObject(key);
+    } catch (Throwable t) {
+      Throwables.propagateIfPossible(t, IOException.class, InterruptedException.class);
+      throw new RuntimeException("unexpected", t);
+    }
+  }
+
+  @Override
+  public void invalidateObject(WorkerKey key, Worker obj) throws IOException, InterruptedException {
+    try {
+      super.invalidateObject(key, obj);
+    } catch (Throwable t) {
+      Throwables.propagateIfPossible(t, IOException.class, InterruptedException.class);
+      throw new RuntimeException("unexpected", t);
+    }
+  }
 }
diff --git a/src/main/java/com/google/devtools/build/lib/worker/WorkerSpawnStrategy.java b/src/main/java/com/google/devtools/build/lib/worker/WorkerSpawnStrategy.java
index c079a8d941..20e0755be0 100644
--- a/src/main/java/com/google/devtools/build/lib/worker/WorkerSpawnStrategy.java
+++ b/src/main/java/com/google/devtools/build/lib/worker/WorkerSpawnStrategy.java
@@ -186,7 +186,7 @@ final class WorkerSpawnStrategy implements SpawnActionContext {
             String.format(
                 "Worker process sent response with exit code: %d.", response.getExitCode()));
       }
-    } catch (Exception e) {
+    } catch (IOException e) {
       String message =
           CommandFailureUtils.describeCommandFailure(
               verboseFailures, spawn.getArguments(), env, execRoot.getPathString());
@@ -228,7 +228,7 @@ final class WorkerSpawnStrategy implements SpawnActionContext {
 
   private WorkResponse execInWorker(
       EventHandler eventHandler, WorkerKey key, WorkRequest request, int retriesLeft)
-      throws Exception {
+      throws IOException, InterruptedException, UserExecException {
     Worker worker = null;
     WorkResponse response = null;
 
@@ -244,7 +244,7 @@ final class WorkerSpawnStrategy implements SpawnActionContext {
             "Worker process did not return a correct WorkResponse. This is probably caused by a "
                 + "bug in the worker, writing unexpected other data to stdout.");
       }
-    } catch (Exception e) {
+    } catch (IOException | InterruptedException e) {
       if (e instanceof InterruptedException) {
         // The user pressed Ctrl-C. Get out here quick.
         retriesLeft = 0;
-- 
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