VM: Re-format to use at most one newline between functions

runtime/vm/os_thread_linux.cc

Index: runtime/vm/os_thread_linux.cc
diff --git a/runtime/vm/os_thread_linux.cc b/runtime/vm/os_thread_linux.cc
index 60e33229ce4f89de76381bfaaeb0a2a2b257bf3e..3b5239da5f60f28164dd2a1dec212cab5f416758 100644
--- a/runtime/vm/os_thread_linux.cc
+++ b/runtime/vm/os_thread_linux.cc
@@ -30,7 +30,6 @@ namespace dart {
            Utils::StrError(result, error_buf, kBufferSize));                   \
   }
 
-
 #if defined(DEBUG)
 #define ASSERT_PTHREAD_SUCCESS(result) VALIDATE_PTHREAD_RESULT(result)
 #else
@@ -38,7 +37,6 @@ namespace dart {
 #define ASSERT_PTHREAD_SUCCESS(result) ASSERT(result == 0)
 #endif
 
-
 #ifdef DEBUG
 #define RETURN_ON_PTHREAD_FAILURE(result)                                      \
   if (result != 0) {                                                           \
@@ -53,7 +51,6 @@ namespace dart {
   if (result != 0) return result;
 #endif
 
-
 static void ComputeTimeSpecMicros(struct timespec* ts, int64_t micros) {
   int64_t secs = micros / kMicrosecondsPerSecond;
   int64_t nanos =
@@ -68,7 +65,6 @@ static void ComputeTimeSpecMicros(struct timespec* ts, int64_t micros) {
   }
 }
 
-
 class ThreadStartData {
  public:
   ThreadStartData(const char* name,
@@ -88,7 +84,6 @@ class ThreadStartData {
   DISALLOW_COPY_AND_ASSIGN(ThreadStartData);
 };
 
-
 // Spawned threads inherit their spawner's signal mask. We sometimes spawn
 // threads for running Dart code from a thread that is blocking SIGPROF.
 // This function explicitly unblocks SIGPROF so the profiler continues to
@@ -103,7 +98,6 @@ static void UnblockSIGPROF() {
   ASSERT(!CHECK_IS_BLOCKING(SIGPROF));
 }
 
-
 // Dispatch to the thread start function provided by the caller. This trampoline
 // is used to ensure that the thread is properly destroyed if the thread just
 // exits.
@@ -128,7 +122,6 @@ static void* ThreadStart(void* data_ptr) {
   return NULL;
 }
 
-
 int OSThread::Start(const char* name,
                     ThreadStartFunction function,
                     uword parameter) {
@@ -151,12 +144,10 @@ int OSThread::Start(const char* name,
   return 0;
 }
 
-
 const ThreadId OSThread::kInvalidThreadId = static_cast<ThreadId>(0);
 const ThreadJoinId OSThread::kInvalidThreadJoinId =
     static_cast<ThreadJoinId>(0);
 
-
 ThreadLocalKey OSThread::CreateThreadLocal(ThreadDestructor destructor) {
   pthread_key_t key = kUnsetThreadLocalKey;
   int result = pthread_key_create(&key, destructor);
@@ -165,39 +156,33 @@ ThreadLocalKey OSThread::CreateThreadLocal(ThreadDestructor destructor) {
   return key;
 }
 
-
 void OSThread::DeleteThreadLocal(ThreadLocalKey key) {
   ASSERT(key != kUnsetThreadLocalKey);
   int result = pthread_key_delete(key);
   VALIDATE_PTHREAD_RESULT(result);
 }
 
-
 void OSThread::SetThreadLocal(ThreadLocalKey key, uword value) {
   ASSERT(key != kUnsetThreadLocalKey);
   int result = pthread_setspecific(key, reinterpret_cast<void*>(value));
   VALIDATE_PTHREAD_RESULT(result);
 }
 
-
 intptr_t OSThread::GetMaxStackSize() {
   const int kStackSize = (128 * kWordSize * KB);
   return kStackSize;
 }
 
-
 ThreadId OSThread::GetCurrentThreadId() {
   return pthread_self();
 }
 
-
 #ifndef PRODUCT
 ThreadId OSThread::GetCurrentThreadTraceId() {
   return syscall(__NR_gettid);
 }
 #endif  // PRODUCT
 
-
 ThreadJoinId OSThread::GetCurrentThreadJoinId(OSThread* thread) {
   ASSERT(thread != NULL);
   // Make sure we're filling in the join id for the current thread.
@@ -211,29 +196,24 @@ ThreadJoinId OSThread::GetCurrentThreadJoinId(OSThread* thread) {
   return id;
 }
 
-
 void OSThread::Join(ThreadJoinId id) {
   int result = pthread_join(id, NULL);
   ASSERT(result == 0);
 }
 
-
 intptr_t OSThread::ThreadIdToIntPtr(ThreadId id) {
   ASSERT(sizeof(id) == sizeof(intptr_t));
   return static_cast<intptr_t>(id);
 }
 
-
 ThreadId OSThread::ThreadIdFromIntPtr(intptr_t id) {
   return static_cast<ThreadId>(id);
 }
 
-
 bool OSThread::Compare(ThreadId a, ThreadId b) {
   return pthread_equal(a, b) != 0;
 }
 
-
 bool OSThread::GetCurrentStackBounds(uword* lower, uword* upper) {
   pthread_attr_t attr;
   if (pthread_getattr_np(pthread_self(), &attr)) {
@@ -253,7 +233,6 @@ bool OSThread::GetCurrentStackBounds(uword* lower, uword* upper) {
   return true;
 }
 
-
 Mutex::Mutex() {
   pthread_mutexattr_t attr;
   int result = pthread_mutexattr_init(&attr);
@@ -277,7 +256,6 @@ Mutex::Mutex() {
 #endif  // defined(DEBUG)
 }
 
-
 Mutex::~Mutex() {
   int result = pthread_mutex_destroy(data_.mutex());
   // Verify that the pthread_mutex was destroyed.
@@ -289,7 +267,6 @@ Mutex::~Mutex() {
 #endif  // defined(DEBUG)
 }
 
-
 void Mutex::Lock() {
   int result = pthread_mutex_lock(data_.mutex());
   // Specifically check for dead lock to help debugging.
@@ -301,7 +278,6 @@ void Mutex::Lock() {
 #endif  // defined(DEBUG)
 }
 
-
 bool Mutex::TryLock() {
   int result = pthread_mutex_trylock(data_.mutex());
   // Return false if the lock is busy and locking failed.
@@ -316,7 +292,6 @@ bool Mutex::TryLock() {
   return true;
 }
 
-
 void Mutex::Unlock() {
 #if defined(DEBUG)
   // When running with assertions enabled we track the owner.
@@ -329,7 +304,6 @@ void Mutex::Unlock() {
   ASSERT_PTHREAD_SUCCESS(result);  // Verify no other errors.
 }
 
-
 Monitor::Monitor() {
   pthread_mutexattr_t mutex_attr;
   int result = pthread_mutexattr_init(&mutex_attr);
@@ -365,7 +339,6 @@ Monitor::Monitor() {
 #endif  // defined(DEBUG)
 }
 
-
 Monitor::~Monitor() {
 #if defined(DEBUG)
   // When running with assertions enabled we track the owner.
@@ -379,7 +352,6 @@ Monitor::~Monitor() {
   VALIDATE_PTHREAD_RESULT(result);
 }
 
-
 bool Monitor::TryEnter() {
   int result = pthread_mutex_trylock(data_.mutex());
   // Return false if the lock is busy and locking failed.
@@ -395,7 +367,6 @@ bool Monitor::TryEnter() {
   return true;
 }
 
-
 void Monitor::Enter() {
   int result = pthread_mutex_lock(data_.mutex());
   VALIDATE_PTHREAD_RESULT(result);
@@ -407,7 +378,6 @@ void Monitor::Enter() {
 #endif  // defined(DEBUG)
 }
 
-
 void Monitor::Exit() {
 #if defined(DEBUG)
   // When running with assertions enabled we track the owner.
@@ -419,13 +389,11 @@ void Monitor::Exit() {
   VALIDATE_PTHREAD_RESULT(result);
 }
 
-
 Monitor::WaitResult Monitor::Wait(int64_t millis) {
   Monitor::WaitResult retval = WaitMicros(millis * kMicrosecondsPerMillisecond);
   return retval;
 }
 
-
 Monitor::WaitResult Monitor::WaitMicros(int64_t micros) {
 #if defined(DEBUG)
   // When running with assertions enabled we track the owner.
@@ -458,7 +426,6 @@ Monitor::WaitResult Monitor::WaitMicros(int64_t micros) {
   return retval;
 }
 
-
 void Monitor::Notify() {
   // When running with assertions enabled we track the owner.
   ASSERT(IsOwnedByCurrentThread());
@@ -466,7 +433,6 @@ void Monitor::Notify() {
   VALIDATE_PTHREAD_RESULT(result);
 }
 
-
 void Monitor::NotifyAll() {
   // When running with assertions enabled we track the owner.
   ASSERT(IsOwnedByCurrentThread());