Test program to reproduce bug #2562.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26791 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/tests/system/libroot/posix/Jamfile

@@ -32,6 +32,10 @@ SimpleTest signal_in_allocator_test
 	: signal_in_allocator_test.cpp
 ;
 
+SimpleTest signal_in_allocator_test2
+	: signal_in_allocator_test2.cpp
+;
+
 SimpleTest signal_test
 	: signal_test.cpp
 ;

src/tests/system/libroot/posix/signal_in_allocator_test2.cpp

@@ -0,0 +1,80 @@
+/*
+ * Copyright 2008, Ingo Weinhold, ingo_weinhold@gmx.de.
+ * Distributed under the terms of the MIT License.
+ */
+
+#include <errno.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <string.h>
+
+#include <OS.h>
+
+
+static int64 sHandledSignals = 0;
+
+
+static status_t
+signal_pusher(void* data)
+{
+	team_info teamInfo;
+	get_team_info(B_CURRENT_TEAM, &teamInfo);
+	thread_id mainThread = teamInfo.team;
+
+	while (true) {
+		send_signal(mainThread, SIGUSR1);
+		snooze(1000);
+	}
+
+	return B_OK;
+}
+
+
+static void
+signal_handler(int signal)
+{
+	sHandledSignals++;
+}
+
+
+static void
+allocator_thread(int level)
+{
+	if (level > 100000)
+		return;
+
+	free(malloc(rand() % 10000));
+
+	allocator_thread(level + 1);
+}
+
+
+int
+main()
+{
+	// Test program to reproduce bug #2562. Is finished quickly and must be run
+	// in a loop to reproduce the bug.
+
+	// install signal handler
+	if (signal(SIGUSR1, signal_handler) == SIG_ERR) {
+		fprintf(stderr, "Error: Failed to install signal handler: %s\n",
+			strerror(errno));
+		exit(1);
+	}
+
+	// start signal thread
+	thread_id signalThread = spawn_thread(&signal_pusher, "signal pusher",
+		B_NORMAL_PRIORITY, NULL);
+	resume_thread(signalThread);
+
+	allocator_thread(0);
+
+	kill_thread(signalThread);
+	snooze(1000);
+
+	printf("test successful, handled %lld signals\n", sHandledSignals);
+
+	return 0;
+}