e9fcf8fc98
Revert "Fix NaCl build." Revert "Revert target arch detection." Revert "Fix typo." Revert "Simplify implementation of Mutex." Revert "Fix for older clang releases that lack __has_extension." Revert "Reland initial bits of "Implement correct OS and CC detection."" TBR=danno@chromium.org,svenpanne@chromium.org Review URL: https://codereview.chromium.org/21095008 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15976 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
106 lines
3.4 KiB
C++
106 lines
3.4 KiB
C++
// 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;
|
|
}
|