pselect->ppoll on linux to raise the process limit roof

1 files changed, 21 insertions, 1 deletions

diff --git a/src/subprocess_test.cc b/src/subprocess_test.cc
index 5b3e8a3..d7ecb33 100644
--- a/src/subprocess_test.cc
+++ b/src/subprocess_test.cc
@@ -1,4 +1,4 @@
-// Copyright 2011 Google Inc. All Rights Reserved.
+// Copyright 2012 Google Inc. All Rights Reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -142,3 +142,23 @@ TEST_F(SubprocessTest, SetWithMulti) {
   }
 }
 
+#ifdef OS_LINUX
+TEST_F(SubprocessTest, SetWithLots) {
+  // Arbitrary big number; needs to be over 1024 to confirm we're no longer
+  // hostage to pselect.
+  const size_t kNumProcs = 1025;
+  vector<Subprocess*> procs;
+  for (size_t i = 0; i < kNumProcs; ++i) {
+    Subprocess* subproc = subprocs_.Add("/bin/echo");
+    ASSERT_NE((Subprocess *) 0, subproc);
+    procs.push_back(subproc);
+  }
+  while (!subprocs_.running_.empty())
+    subprocs_.DoWork();
+  for (size_t i = 0; i < procs.size(); ++i) {
+    ASSERT_EQ(ExitSuccess, procs[i]->Finish());
+    ASSERT_NE("", procs[i]->GetOutput());
+  }
+  ASSERT_EQ(kNumProcs, subprocs_.finished_.size());
+}
+#endif