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

runtime/vm/os_linux.cc

Index: runtime/vm/os_linux.cc
diff --git a/runtime/vm/os_linux.cc b/runtime/vm/os_linux.cc
index c0f5b8b841c3b7fd4261ea604d2365a58d09c9da..ccbc7e51e4f07abe06506e8e625c7e1bb01f1903 100644
--- a/runtime/vm/os_linux.cc
+++ b/runtime/vm/os_linux.cc
@@ -8,15 +8,15 @@
 #include "vm/os.h"
 
 #include <errno.h>         // NOLINT
+#include <fcntl.h>         // NOLINT
 #include <limits.h>        // NOLINT
 #include <malloc.h>        // NOLINT
-#include <time.h>          // NOLINT
 #include <sys/resource.h>  // NOLINT
+#include <sys/stat.h>      // NOLINT
+#include <sys/syscall.h>   // NOLINT
 #include <sys/time.h>      // NOLINT
 #include <sys/types.h>     // NOLINT
-#include <sys/syscall.h>   // NOLINT
-#include <sys/stat.h>      // NOLINT
-#include <fcntl.h>         // NOLINT
+#include <time.h>          // NOLINT
 #include <unistd.h>        // NOLINT
 
 #include "platform/memory_sanitizer.h"
@@ -29,7 +29,6 @@
 #include "vm/os_thread.h"
 #include "vm/zone.h"
 
-
 namespace dart {
 
 #ifndef PRODUCT
@@ -90,19 +89,16 @@ class PerfCodeObserver : public CodeObserver {
   DISALLOW_COPY_AND_ASSIGN(PerfCodeObserver);
 };
 
-
 #endif  // !PRODUCT
 
 const char* OS::Name() {
   return "linux";
 }
 
-
 intptr_t OS::ProcessId() {
   return static_cast<intptr_t>(getpid());
 }
 
-
 static bool LocalTime(int64_t seconds_since_epoch, tm* tm_result) {
   time_t seconds = static_cast<time_t>(seconds_since_epoch);
   if (seconds != seconds_since_epoch) return false;
@@ -110,7 +106,6 @@ static bool LocalTime(int64_t seconds_since_epoch, tm* tm_result) {
   return error_code != NULL;
 }
 
-
 const char* OS::GetTimeZoneName(int64_t seconds_since_epoch) {
   tm decomposed;
   bool succeeded = LocalTime(seconds_since_epoch, &decomposed);
@@ -118,7 +113,6 @@ const char* OS::GetTimeZoneName(int64_t seconds_since_epoch) {
   return (succeeded && (decomposed.tm_zone != NULL)) ? decomposed.tm_zone : "";
 }
 
-
 int OS::GetTimeZoneOffsetInSeconds(int64_t seconds_since_epoch) {
   tm decomposed;
   bool succeeded = LocalTime(seconds_since_epoch, &decomposed);
@@ -127,7 +121,6 @@ int OS::GetTimeZoneOffsetInSeconds(int64_t seconds_since_epoch) {
   return succeeded ? static_cast<int>(decomposed.tm_gmtoff) : 0;
 }
 
-
 int OS::GetLocalTimeZoneAdjustmentInSeconds() {
   // TODO(floitsch): avoid excessive calls to tzset?
   tzset();
@@ -136,12 +129,10 @@ int OS::GetLocalTimeZoneAdjustmentInSeconds() {
   return static_cast<int>(-timezone);
 }
 
-
 int64_t OS::GetCurrentTimeMillis() {
   return GetCurrentTimeMicros() / 1000;
 }
 
-
 int64_t OS::GetCurrentTimeMicros() {
   // gettimeofday has microsecond resolution.
   struct timeval tv;
@@ -152,7 +143,6 @@ int64_t OS::GetCurrentTimeMicros() {
   return (static_cast<int64_t>(tv.tv_sec) * 1000000) + tv.tv_usec;
 }
 
-
 int64_t OS::GetCurrentMonotonicTicks() {
   struct timespec ts;
   if (clock_gettime(CLOCK_MONOTONIC, &ts) != 0) {
@@ -166,19 +156,16 @@ int64_t OS::GetCurrentMonotonicTicks() {
   return result;
 }
 
-
 int64_t OS::GetCurrentMonotonicFrequency() {
   return kNanosecondsPerSecond;
 }
 
-
 int64_t OS::GetCurrentMonotonicMicros() {
   int64_t ticks = GetCurrentMonotonicTicks();
   ASSERT(GetCurrentMonotonicFrequency() == kNanosecondsPerSecond);
   return ticks / kNanosecondsPerMicrosecond;
 }
 
-
 int64_t OS::GetCurrentThreadCPUMicros() {
   struct timespec ts;
   if (clock_gettime(CLOCK_THREAD_CPUTIME_ID, &ts) != 0) {
@@ -191,7 +178,6 @@ int64_t OS::GetCurrentThreadCPUMicros() {
   return result;
 }
 
-
 // TODO(5411554):  May need to hoist these architecture dependent code
 // into a architecture specific file e.g: os_ia32_linux.cc
 intptr_t OS::ActivationFrameAlignment() {
@@ -212,7 +198,6 @@ intptr_t OS::ActivationFrameAlignment() {
   return alignment;
 }
 
-
 intptr_t OS::PreferredCodeAlignment() {
 #if defined(TARGET_ARCH_IA32) || defined(TARGET_ARCH_X64) ||                   \
     defined(TARGET_ARCH_ARM64) || defined(TARGET_ARCH_DBC)
@@ -232,12 +217,10 @@ intptr_t OS::PreferredCodeAlignment() {
   return alignment;
 }
 
-
 int OS::NumberOfAvailableProcessors() {
   return sysconf(_SC_NPROCESSORS_ONLN);
 }
 
-
 uintptr_t OS::MaxRSS() {
   struct rusage usage;
   usage.ru_maxrss = 0;
@@ -246,13 +229,11 @@ uintptr_t OS::MaxRSS() {
   return usage.ru_maxrss * KB;
 }
 
-
 void OS::Sleep(int64_t millis) {
   int64_t micros = millis * kMicrosecondsPerMillisecond;
   SleepMicros(micros);
 }
 
-
 void OS::SleepMicros(int64_t micros) {
   struct timespec req;  // requested.
   struct timespec rem;  // remainder.
@@ -273,7 +254,6 @@ void OS::SleepMicros(int64_t micros) {
   }
 }
 
-
 // TODO(regis, iposva): When this function is no longer called from the
 // CodeImmutability test in object_test.cc, it will be called only from the
 // simulator, which means that only the Intel implementation is needed.
@@ -281,23 +261,19 @@ void OS::DebugBreak() {
   __builtin_trap();
 }
 
-
 uintptr_t DART_NOINLINE OS::GetProgramCounter() {
   return reinterpret_cast<uintptr_t>(
       __builtin_extract_return_addr(__builtin_return_address(0)));
 }
 
-
 char* OS::StrNDup(const char* s, intptr_t n) {
   return strndup(s, n);
 }
 
-
 intptr_t OS::StrNLen(const char* s, intptr_t n) {
   return strnlen(s, n);
 }
 
-
 void OS::Print(const char* format, ...) {
   va_list args;
   va_start(args, format);
@@ -305,13 +281,11 @@ void OS::Print(const char* format, ...) {
   va_end(args);
 }
 
-
 void OS::VFPrint(FILE* stream, const char* format, va_list args) {
   vfprintf(stream, format, args);
   fflush(stream);
 }
 
-
 int OS::SNPrint(char* str, size_t size, const char* format, ...) {
   va_list args;
   va_start(args, format);
@@ -320,7 +294,6 @@ int OS::SNPrint(char* str, size_t size, const char* format, ...) {
   return retval;
 }
 
-
 int OS::VSNPrint(char* str, size_t size, const char* format, va_list args) {
   MSAN_UNPOISON(str, size);
   int retval = vsnprintf(str, size, format, args);
@@ -330,7 +303,6 @@ int OS::VSNPrint(char* str, size_t size, const char* format, va_list args) {
   return retval;
 }
 
-
 char* OS::SCreate(Zone* zone, const char* format, ...) {
   va_list args;
   va_start(args, format);
@@ -339,7 +311,6 @@ char* OS::SCreate(Zone* zone, const char* format, ...) {
   return buffer;
 }
 
-
 char* OS::VSCreate(Zone* zone, const char* format, va_list args) {
   // Measure.
   va_list measure_args;
@@ -363,7 +334,6 @@ char* OS::VSCreate(Zone* zone, const char* format, va_list args) {
   return buffer;
 }
 
-
 bool OS::StringToInt64(const char* str, int64_t* value) {
   ASSERT(str != NULL && strlen(str) > 0 && value != NULL);
   int32_t base = 10;
@@ -381,7 +351,6 @@ bool OS::StringToInt64(const char* str, int64_t* value) {
   return ((errno == 0) && (endptr != str) && (*endptr == 0));
 }
 
-
 void OS::RegisterCodeObservers() {
 #ifndef PRODUCT
   if (FLAG_generate_perf_events_symbols) {
@@ -390,7 +359,6 @@ void OS::RegisterCodeObservers() {
 #endif  // !PRODUCT
 }
 
-
 void OS::PrintErr(const char* format, ...) {
   va_list args;
   va_start(args, format);
@@ -398,7 +366,6 @@ void OS::PrintErr(const char* format, ...) {
   va_end(args);
 }
 
-
 void OS::InitOnce() {
   // TODO(5411554): For now we check that initonce is called only once,
   // Once there is more formal mechanism to call InitOnce we can move
@@ -408,15 +375,12 @@ void OS::InitOnce() {
   init_once_called = true;
 }
 
-
 void OS::Shutdown() {}
 
-
 void OS::Abort() {
   abort();
 }
 
-
 void OS::Exit(int code) {
   exit(code);
 }