EDK: Move mutex.*, cond_var.*, and thread_annotations.h to //mojo/edk/util.

mojo/edk/util/cond_var.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "mojo/edk/system/cond_var.h"
+#include "mojo/edk/util/cond_var.h"
 
 #include <errno.h>
 #include <string.h>
 #include <time.h>
 
 #include <limits>
 
-#include "base/logging.h"
 #include "build/build_config.h"
-#include "mojo/edk/system/mutex.h"
+#include "mojo/edk/util/logging_internal.h"
+#include "mojo/edk/util/mutex.h"
 
 namespace mojo {
-namespace system {
+namespace util {
 
 namespace {
 
 // Helper for |CondVar::WaitWithTimeout()|. Returns true on (definite) time-out.
 bool RelativeTimedWait(const struct timespec& timeout_rel,
                        pthread_cond_t* posix_cond_var,
                        pthread_mutex_t* posix_mutex) {
 // Mac has a function to do a relative timed wait directly.
 #if defined(OS_MACOSX)
   int error = pthread_cond_timedwait_relative_np(posix_cond_var, posix_mutex,
                                                  &timeout_rel);
-  DCHECK(error == 0 || error == ETIMEDOUT || error == EINTR)
-      << ". pthread_cond_timedwait_relative_np: " << strerror(error);
+  INTERNAL_DCHECK_WITH_ERRNO(error == 0 || error == ETIMEDOUT || error == EINTR,
+                             "pthread_cond_timedwait_relative_np", error);
   return error == ETIMEDOUT;
 #else
   static const long kNanosecondsPerSecond = 1000000000L;
 
 // NaCl's |pthread_condattr_setclock()| only supports |CLOCK_REALTIME| (which is
 // the default, which is why we don't bother setting it in |CondVar|'s
 // constructor).
 #if defined(OS_NACL)
   static const clockid_t kClockType = CLOCK_REALTIME;
 #else
   static const clockid_t kClockType = CLOCK_MONOTONIC;
 #endif  // defined(OS_NACL)
 
   struct timespec timeout_abs;
   int error = clock_gettime(kClockType, &timeout_abs);
   // Note: The return value of |clock_gettime()| is *not* an error code, unlike
-  // the pthreads functions.
-  DPCHECK(!error) << "clock_gettime";
+  // the pthreads functions (however, it sets errno).
+  INTERNAL_DCHECK_WITH_ERRNO(!error, "clock_gettime", errno);
 
   timeout_abs.tv_sec += timeout_rel.tv_sec;
   timeout_abs.tv_nsec += timeout_rel.tv_nsec;
   if (timeout_abs.tv_nsec >= kNanosecondsPerSecond) {
     timeout_abs.tv_sec++;
     timeout_abs.tv_nsec -= kNanosecondsPerSecond;
-    DCHECK_LT(timeout_abs.tv_nsec, kNanosecondsPerSecond);
+    INTERNAL_DCHECK(timeout_abs.tv_nsec < kNanosecondsPerSecond);
   }
 
 // Older Android doesn't have |pthread_condattr_setclock()|, but they have
 // |pthread_cond_timedwait_monotonic_np()|.
 #if defined(OS_ANDROID) && defined(HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC)
   error = pthread_cond_timedwait_monotonic_np(posix_cond_var, posix_mutex,
                                               &timeout_abs);
-  DCHECK(error == 0 || error == ETIMEDOUT || error == EINTR)
-      << ". pthread_cond_timedwait_monotonic_np: " << strerror(error);
+  INTERNAL_DCHECK_WITH_ERRNO(error == 0 || error == ETIMEDOUT || error == EINTR,
+                             "pthread_cond_timedwait_monotonic_np", error);
 #else
   error = pthread_cond_timedwait(posix_cond_var, posix_mutex, &timeout_abs);
-  DCHECK(error == 0 || error == ETIMEDOUT || error == EINTR)
-      << ". pthread_cond_timedwait: " << strerror(error);
+  INTERNAL_DCHECK_WITH_ERRNO(error == 0 || error == ETIMEDOUT || error == EINTR,
+                             "pthread_cond_timedwait", error);
 #endif  // defined(OS_ANDROID) && defined(HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC)
   return error == ETIMEDOUT;
 #endif  // defined(OS_MACOSX)
 }
 
 }  // namespace
 
 CondVar::CondVar() {
 // Mac and older Android don't have |pthread_condattr_setclock()| (but they have
 // other timed wait functions we can use) and NaCl doesn't have a useful one.
 #if !defined(OS_MACOSX) && !defined(OS_NACL) && \
     !(defined(OS_ANDROID) && defined(HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC))
   pthread_condattr_t attr;
   int error = pthread_condattr_init(&attr);
-  DCHECK(!error) << "pthread_condattr_init: " << strerror(error);
+  INTERNAL_DCHECK_WITH_ERRNO(!error, "pthread_condattr_init", error);
   error = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
-  DCHECK(!error) << "pthread_condattr_setclock: " << strerror(error);
+  INTERNAL_DCHECK_WITH_ERRNO(!error, "pthread_condattr_setclock", error);
   error = pthread_cond_init(&impl_, &attr);
-  DCHECK(!error) << "pthread_cond_init: " << strerror(error);
+  INTERNAL_DCHECK_WITH_ERRNO(!error, "pthread_cond_init", error);
   error = pthread_condattr_destroy(&attr);
-  DCHECK(!error) << "pthread_condattr_destroy: " << strerror(error);
+  INTERNAL_DCHECK_WITH_ERRNO(!error, "pthread_condattr_destroy", error);
 #else
   int error = pthread_cond_init(&impl_, nullptr);
-  DCHECK(!error) << "pthread_cond_init: " << strerror(error);
+  INTERNAL_DCHECK_WITH_ERRNO(!error, "pthread_cond_init", error);
 #endif  // !defined(OS_MACOSX) && !defined(OS_NACL) && !(defined(OS_ANDROID)...)
 }
 
 CondVar::~CondVar() {
   int error = pthread_cond_destroy(&impl_);
-  DCHECK(!error) << "pthread_cond_destroy: " << strerror(error);
+  INTERNAL_DCHECK_WITH_ERRNO(!error, "pthread_cond_destroy", error);
 }
 
 void CondVar::Wait(Mutex* mutex) {
-  DCHECK(mutex);
+  INTERNAL_DCHECK(mutex);
   mutex->AssertHeld();
 
   int error = pthread_cond_wait(&impl_, &mutex->impl_);
-  DCHECK(!error) << "pthread_cond_wait: " << strerror(error);
+  INTERNAL_DCHECK_WITH_ERRNO(!error, "pthread_cond_wait", error);
 }
 
 bool CondVar::WaitWithTimeout(Mutex* mutex, uint64_t timeout_microseconds) {
   static const uint64_t kMicrosecondsPerSecond = 1000000ULL;
   static const uint64_t kNanosecondsPerMicrosecond = 1000ULL;
 
   // Turn very long waits into "forever". This isn't a huge concern if |time_t|
   // is 64-bit, but overflowing |time_t| is a real risk if it's only 32-bit.
   // (2^31 / 16 seconds = ~4.25 years, so we won't risk overflowing until 2033.)
   constexpr uint64_t kForeverThresholdSeconds =
       std::numeric_limits<time_t>::max() / 16;
   uint64_t timeout_seconds = timeout_microseconds / kMicrosecondsPerSecond;
   if (timeout_seconds >= kForeverThresholdSeconds) {
     Wait(mutex);
     return false;  // Did *not* time out.
   }
 
-  DCHECK(mutex);
+  INTERNAL_DCHECK(mutex);
   mutex->AssertHeld();
 
   struct timespec timeout_rel = {};
   timeout_rel.tv_sec = static_cast<time_t>(timeout_seconds);
   timeout_rel.tv_nsec =
       static_cast<long>((timeout_microseconds % kMicrosecondsPerSecond) *
                         kNanosecondsPerMicrosecond);
   return RelativeTimedWait(timeout_rel, &impl_, &mutex->impl_);
 }
 
 void CondVar::Signal() {
   int error = pthread_cond_signal(&impl_);
-  DCHECK(!error) << "pthread_cond_signal: " << strerror(error);
+  INTERNAL_DCHECK_WITH_ERRNO(!error, "pthread_cond_signal", error);
 }
 
 void CondVar::SignalAll() {
   int error = pthread_cond_broadcast(&impl_);
-  DCHECK(!error) << "pthread_cond_broadcast: " << strerror(error);
+  INTERNAL_DCHECK_WITH_ERRNO(!error, "pthread_cond_broadcast", error);
 }
 
-}  // namespace system
+}  // namespace util
 }  // namespace mojo