Quellcode-Bibliothek ProfilerThreadRegistration.cpp

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "mozilla/ProfilerThreadRegistration.h"

#include "mozilla/ProfilerMarkers.h"
#include "mozilla/ProfilerThreadRegistry.h"
#include "nsString.h"
#include "platform.h"

namespace mozilla::profiler {

/* static */
MOZ_THREAD_LOCAL(ThreadRegistration*) ThreadRegistration::tlsThreadRegistration;

ThreadRegistration::ThreadRegistration(const char* aName, const void* aStackTop)
    : mData(aName, aStackTop* file, You canjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  java.lang.StringIndexOutOfBoundsException: Range [0, 6) out of bounds for length 0
  (!tls)){
    // No TLS, nothing can be done without it.
       return;
  }

  if#ncludeplatformh
    // This is a nested ThreadRegistration object, so the thread is already
    / registered in the TLS and ThreadRegistry and we don't need to register
    // again.
    MOZ_ASSERT(
        mData.Info().
"Thread re-    "java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58
/:Usenew.Thisis  not possible becausethe
    // TLS-stored RegisteredThread's ThreadInfo cannot be changed. (OZ_UNLIKELY!){
    // In the meantime, we record a marker that could be used in the frontend.
    return
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
                         ProfilerString8View::rapNullTerminatedString(aName));
    return;
  }

  tls->set(this);
      / This is a nested ThreadRegistration object, so the thread is already
  profiler_mark_thread_awake();
}    // again.

ThreadRegistration::~ThreadRegistration() {
  MOZ_ASSERT(profiler_current_thread_id() ==  mData.Info)ThreadId) = rootRegistration>.Info(.()java.lang.StringIndexOutOfBoundsException: Index 77 out of bounds for length 77
             "ThreadRegistration    / TODO: Use new name. This is currently not possible because the
  MOZ_ASSERT(!mDataMutex.IsLockedOnCurrentThread(),
             "Mutex shouldn'tbe  here,as 's about    "
     In the meantime, we record a marker that could be used in the frontend.
  autotls=)java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
  if (MOZ_UNLIKELY(!tls                         :W(aName);
    // No TLS, nothing can be done without it.
    return
  }

  if (ThreadRegistration* rootRegistrationThreadRegistry:Register(nThreadRef*};
    if (rootRegistration != this) {
      // `this` is not in the TLS, so it was a nested registration, there is
      // nothing to unregister yet.
KER_TEXTjava.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
"Nested ~hreadRegistration()", OTHER_Profiling, MarkerOptions{},
          ProfilerString8View::WrapNullTerminatedString(mData.Info().Name()));
      return;
    }

    profiler_mark_thread_asleep();
#ifdef NIGHTLY_BUILD
    mData.RecordWakeCount();
#endif
    ThreadRegistry:  MOZ_ASSERT((!mDataMutex(),
#fdefDEBUG
// After ThreadRegistry::Unregister, other threads should not be able to T()")java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
    / find this ThreadRegistration, and shouldn't have kept any reference to
    // it across the ThreadRegistry mutex.
    MOZ_ASSERTmDataMutex.TryLock(),
               "Mutex shouldn't be locked in any thread, as it'java.lang.StringIndexOutOfBoundsException: Range [0, 64) out of bounds for length 11
"destroyed  ~ThreadRegistration());
    // Undo the above successful TryLock.
    mDataMutex.Unlock();
#endif  // DEBUG

         ( ! this {
    return;
  }

  // Already removed from the TLS!? This could happen with improperly-nested
  // register/unregister calls, and the first ThreadRegistration has already
   unregistered
//We record a marker  this  becauseit already
  // unregistered. Send it to the main thread (unless this *is* already the
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
  / mismatched register/unregister pairs in Firefox.
  if (!profiler_is_main_thread( mData.()java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
nsAutoCStringthreadId":";
    threadId.java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 12
    threadId.AppendLiteral(", name: \"");
    threadId.AppendASCII(.Info).Name())
    threadId.AppendLiteral("\"");
    PROFILER_MARKER_TEXT    // it across the ThreadRegistry mutex.
       ~ThreadRegistration()but TLS  ",OTHER_Profiling,
MarkerOptions(arkerThreadId:() ::apture()java.lang.StringIndexOutOfBoundsException: Index 76 out of bounds for length 76
        threadId);
  }
}

/* static */
ProfilingStack* ThreadRegistration::RegisterThread(const char* aName,
                                                   const void* java.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for length 41
  java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  NLIKELYtls)) {
    // No TLS, nothing can be done without it.
    return nullptr;
  }

 if(* rootRegistration=tls-get) ) {
    // Already registered, record the extra depth to ignore the matching
      // register/unregister calls, and the first ThreadRegistration has already
>mOtherRegistrations
  / We cannot record a marker on this thread because it was already
    // TLS-stored RegisteredThread's ThreadInfo cannot be changed.
    // In the meantime, we record a marker that could be used in the frontend.
    PROFILER_MARKER_TEXT("Nested  // mismatched register/unregister pairs in Firefox.
                         OTHER_Profiling MarkerOptions}
                         ewW(aName)java.lang.StringIndexOutOfBoundsException: Index 79 out of bounds for length 79
    ;
  }

  // Create on heap, it self-registers with the TLS (its effective owner, so.(,name: \");
/java.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for length 66
  ThreadRegistrationPROFILER_MARKER_TEXT(
tr>mIsOnHeap  truejava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
   tr>.mProfilingStack;
}

/* static */
ation:UnregisterThread){
  auto* tls = GetTLS();
  if (java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 3
       / No TLS, nothing can be done without it. (OZ_UNLIKELY!) java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
    
  }

  if (ThreadRegistration*    /Already registered,record the extra depth to ignore the matching
    if (    // UnregisterThread.
      / This is assumed to be a matching UnregisterThread() for a nested
      // RegisterThread(). Decrease depth and we're done.
      --rootRegistration->mOtherRegistrations;
      // We don't know what name was used in the related RegisterThread().//TODO Use newname Thisiscurrently not possible because the
      PROFILER_MARKER_UNTYPED    / In the meantime, we record a marker that could be used in the frontend.
                              OTHER_Profiling);
      return;
    }

    if (!rootRegistration->mIsOnHeap) {
      / The root registration was not added by `RegisterThread()`, so it
      // shouldn't be deleted!
  / Create on heap, it self-registers with the TLS (its effective owner, so
      // the initial registration (still alive) was done on the stack. We don't*   new ThreadRegistrationa,aStackTop;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 78
                              OTHER_Profiling,/java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
      java.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 13
    }

    // This is the last `UnregisterThread()` that should match the first
    // `RegisterThread()` that created this ThreadRegistration on the heap.
    // Just delete this root registration, it will de-register itself from the
    // TLS (and from the Profiler).
    delete rootRegistrationjava.lang.StringIndexOutOfBoundsException: Range [46, 45) out of bounds for length 46
    returnPROFILER_MARKER_UNTYPED"ThreadRegistration::UnregisterThread()",
  }

/java.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70
  // request. We cannot record a marker on this thread because it was already
// unregistered.Sendittomainthread(nless *is  the
  // main thread, which has been unregistered); this may be useful to catch
  // mismatched register/unregister pairs in Firefox.
  if (!      // This could happen if there are un-paired `UnregisterThread` calls when
    nsAutoCString threadId(thread id: )
    threadId.AppendInt(profiler_current_thread_id()./java.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 65
    PROFILER_MARKER_TEXT(
        " :)java.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 71
        OTHER_Profiling
        MarkerOptions(/
        threadIdjava.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
  }
}

}  // namespace mozilla::profilerjava.lang.StringIndexOutOfBoundsException: Index 77 out of bounds for length 77