Drop platform-nullos stuff, which was already horribly out-of-date for a long time.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/23434004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16363 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

test/cctest/test-platform-nullos.cc

-// Copyright 2006-2008 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//
-// Tests of the TokenLock class from lock.h
-
-#include <pthread.h>
-#include <stdlib.h>
-#include <unistd.h>  // for usleep()
-
-#include "v8.h"
-
-#include "platform.h"
-#include "cctest.h"
-
-using namespace ::v8::internal;
-
-
-static void yield() {
-  UNIMPLEMENTED();
-}
-
-static const int kLockCounterLimit = 50;
-static int busy_lock_counter = 0;
-
-
-static void LoopIncrement(Mutex* mutex, int rem) {
-  while (true) {
-    int count = 0;
-    int last_count = -1;
-    do {
-      CHECK_EQ(0, mutex->Lock());
-      count = busy_lock_counter;
-      CHECK_EQ(0, mutex->Unlock());
-      yield();
-    } while (count % 2 == rem && count < kLockCounterLimit);
-    if (count >= kLockCounterLimit) break;
-    CHECK_EQ(0, mutex->Lock());
-    CHECK_EQ(count, busy_lock_counter);
-    CHECK(last_count == -1 || count == last_count + 1);
-    busy_lock_counter++;
-    last_count = count;
-    CHECK_EQ(0, mutex->Unlock());
-    yield();
-  }
-}
-
-
-static void* RunTestBusyLock(void* arg) {
-  LoopIncrement(static_cast<Mutex*>(arg), 0);
-  return 0;
-}
-
-
-// Runs two threads that repeatedly acquire the lock and conditionally
-// increment a variable.
-TEST(BusyLock) {
-  pthread_t other;
-  Mutex* mutex = OS::CreateMutex();
-  int thread_created = pthread_create(&other,
-                                      NULL,
-                                      &RunTestBusyLock,
-                                      mutex);
-  CHECK_EQ(0, thread_created);
-  LoopIncrement(mutex, 1);
-  pthread_join(other, NULL);
-  delete mutex;
-}
-
-
-TEST(VirtualMemory) {
-  VirtualMemory* vm = new VirtualMemory(1 * MB);
-  CHECK(vm->IsReserved());
-  void* block_addr = vm->address();
-  size_t block_size = 4 * KB;
-  CHECK(vm->Commit(block_addr, block_size, false));
-  // Check whether we can write to memory.
-  int* addr = static_cast<int*>(block_addr);
-  addr[KB-1] = 2;
-  CHECK(vm->Uncommit(block_addr, block_size));
-  delete vm;
-}