Replace NULL with nullptr or null in webrtc/base/.

webrtc/base/physicalsocketserver.cc

 /*
  *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 #include "webrtc/base/physicalsocketserver.h"
@@ skipping 1100 matching lines @@
 class EventDispatcher : public Dispatcher {
  public:
   EventDispatcher(PhysicalSocketServer *ss) : ss_(ss) {
     hev_ = WSACreateEvent();
     if (hev_) {
       ss_->Add(this);
     }
   }
 
   ~EventDispatcher() {
-    if (hev_ != NULL) {
+    if (hev_ != nullptr) {
       ss_->Remove(this);
       WSACloseEvent(hev_);
-      hev_ = NULL;
+      hev_ = nullptr;
     }
   }
 
   virtual void Signal() {
-    if (hev_ != NULL)
+    if (hev_ != nullptr)
       WSASetEvent(hev_);
   }
 
   virtual uint32_t GetRequestedEvents() { return 0; }
 
   virtual void OnPreEvent(uint32_t ff) { WSAResetEvent(hev_); }
 
   virtual void OnEvent(uint32_t ff, int err) {}
 
   virtual WSAEVENT GetWSAEvent() {
@@ skipping 121 matching lines @@
     if (index < **it) {
       --**it;
     }
   }
 }
 
 #if defined(WEBRTC_POSIX)
 bool PhysicalSocketServer::Wait(int cmsWait, bool process_io) {
   // Calculate timing information
 
-  struct timeval *ptvWait = NULL;
+  struct timeval* ptvWait = nullptr;
   struct timeval tvWait;
   struct timeval tvStop;
   if (cmsWait != kForever) {
     // Calculate wait timeval
     tvWait.tv_sec = cmsWait / 1000;
     tvWait.tv_usec = (cmsWait % 1000) * 1000;
     ptvWait = &tvWait;
 
     // Calculate when to return in a timeval
-    gettimeofday(&tvStop, NULL);
+    gettimeofday(&tvStop, nullptr);
     tvStop.tv_sec += tvWait.tv_sec;
     tvStop.tv_usec += tvWait.tv_usec;
     if (tvStop.tv_usec >= 1000000) {
       tvStop.tv_usec -= 1000000;
       tvStop.tv_sec += 1;
     }
   }
 
   // Zero all fd_sets. Don't need to do this inside the loop since
   // select() zeros the descriptors not signaled
@@ skipping 31 matching lines @@
           FD_SET(fd, &fdsRead);
         if (ff & (DE_WRITE | DE_CONNECT))
           FD_SET(fd, &fdsWrite);
       }
     }
 
     // Wait then call handlers as appropriate
     // < 0 means error
     // 0 means timeout
     // > 0 means count of descriptors ready
-    int n = select(fdmax + 1, &fdsRead, &fdsWrite, NULL, ptvWait);
+    int n = select(fdmax + 1, &fdsRead, &fdsWrite, nullptr, ptvWait);
 
     // If error, return error.
     if (n < 0) {
       if (errno != EINTR) {
         LOG_E(LS_ERROR, EN, errno) << "select";
         return false;
       }
       // Else ignore the error and keep going. If this EINTR was for one of the
       // signals managed by this PhysicalSocketServer, the
       // PosixSignalDeliveryDispatcher will be in the signaled state in the next
@@ skipping 54 matching lines @@
         }
       }
     }
 
     // Recalc the time remaining to wait. Doing it here means it doesn't get
     // calced twice the first time through the loop
     if (ptvWait) {
       ptvWait->tv_sec = 0;
       ptvWait->tv_usec = 0;
       struct timeval tvT;
-      gettimeofday(&tvT, NULL);
+      gettimeofday(&tvT, nullptr);
       if ((tvStop.tv_sec > tvT.tv_sec)
           || ((tvStop.tv_sec == tvT.tv_sec)
               && (tvStop.tv_usec > tvT.tv_usec))) {
         ptvWait->tv_sec = tvStop.tv_sec - tvT.tv_sec;
         ptvWait->tv_usec = tvStop.tv_usec - tvT.tv_usec;
         if (ptvWait->tv_usec < 0) {
           RTC_DCHECK(ptvWait->tv_sec > 0);
           ptvWait->tv_usec += 1000000;
           ptvWait->tv_sec -= 1;
         }
@@ skipping 47 matching lines @@
   }
   act.sa_handler = handler;
 #if !defined(__native_client__)
   // Use SA_RESTART so that our syscalls don't get EINTR, since we don't need it
   // and it's a nuisance. Though some syscalls still return EINTR and there's no
   // real standard for which ones. :(
   act.sa_flags = SA_RESTART;
 #else
   act.sa_flags = 0;
 #endif
-  if (sigaction(signum, &act, NULL) != 0) {
+  if (sigaction(signum, &act, nullptr) != 0) {
     LOG_ERR(LS_ERROR) << "Couldn't set sigaction";
     return false;
   }
   return true;
 }
 #endif  // WEBRTC_POSIX
 
 #if defined(WEBRTC_WIN)
 bool PhysicalSocketServer::Wait(int cmsWait, bool process_io) {
   int64_t cmsTotal = cmsWait;
@@ skipping 150 matching lines @@
        break;
     }
   }
 
   // Done
   return true;
 }
 #endif  // WEBRTC_WIN
 
 }  // namespace rtc