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os: force Out_of_metadata exception in TRACE test

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We have to create additional threads to trigger the Out_of_metadata
exception on certain platforms.

Fixes #2297.
This commit is contained in:
Josef Söntgen 2017-02-27 14:59:41 +01:00 committed by Christian Helmuth
parent 226ff08304
commit 5ad4da4b1b
1 changed files with 24 additions and 0 deletions
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24
repos/os/src/test/trace/main.cc
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@ -19,6 +19,7 @@
#include <base/attached_rom_dataspace.h>
#include <base/component.h>
#include <base/heap.h>
#include <base/sleep.h>
using namespace Genode;
@ -109,6 +110,15 @@ struct Test_out_of_metadata
{
Env &env;
struct Test_thread : Genode::Thread
{
Test_thread(Genode::Env &env,
Genode::Thread::Name name)
: Thread(env, name, 4096) { start(); }
void entry() { Genode::sleep_forever(); }
};
Test_out_of_metadata(Env &env) : env(env)
{
log("test Out_of_metadata exception of Trace::Session::subjects call");
@ -137,6 +147,20 @@ struct Test_out_of_metadata
log("got Parent::Service_denied exception as expected"); }
try {
/*
* Create multiple threads because on some platforms there
* are not enough available subjects to trigger the Out_of_metadata
* exception.
*/
Test_thread::Name thread_name1 { "test-thread1" };
Test_thread thread1 { env, thread_name1 };
Test_thread::Name thread_name2 { "test-thread2" };
Test_thread thread2 { env, thread_name2 };
Test_thread::Name thread_name3 { "test-thread3" };
Test_thread thread3 { env, thread_name3 };
Test_thread::Name thread_name4 { "test-thread4" };
Test_thread thread4 { env, thread_name4 };
Trace::Connection trace(env, sizeof(subject_ids) + 5*4096,
sizeof(subject_ids), 0);
trace.subjects(subject_ids, MAX_SUBJECT_IDS);