C++ String8::appendFormat方法代码示例

status_t CameraDeviceClient::dumpClient(int fd, const Vector<String16>& args) {
    String8 result;
    result.appendFormat("CameraDeviceClient[%d] (%p) dump:\n",
            mCameraId,
            (getRemoteCallback() != NULL ?
                    IInterface::asBinder(getRemoteCallback()).get() : NULL) );
    result.appendFormat("  Current client UID %u\n", mClientUid);

    result.append("  State:\n");
    result.appendFormat("    Request ID counter: %d\n", mRequestIdCounter);
    if (mInputStream.configured) {
        result.appendFormat("    Current input stream ID: %d\n",
                    mInputStream.id);
    } else {
        result.append("    No input stream configured.\n");
    }
    if (!mStreamMap.isEmpty()) {
        result.append("    Current output stream IDs:\n");
        for (size_t i = 0; i < mStreamMap.size(); i++) {
            result.appendFormat("      Stream %d\n", mStreamMap.valueAt(i));
        }
    } else {
        result.append("    No output streams configured.\n");
    }
    write(fd, result.string(), result.size());
    // TODO: print dynamic/request section from most recent requests
    mFrameProcessor->dump(fd, args);

    return dumpDevice(fd, args);
}

// ----------------------------------------------------------------------------
void BackupBufDumper::dump(String8 &result, const char* prefix) {
    // dump status to log buffer first
    result.appendFormat("%s*BackupBufDumper mRingBuffer(size=%u, count=%u)\n",
        prefix, mRingBuffer.getSize(), mRingBuffer.getCount());

    for (size_t i = 0; i < mRingBuffer.getValidSize(); i++) {
        const sp<BackupBuffer>& buffer = getItem(i);
        result.appendFormat("%s [%02u] handle(source=%p, backup=%p)\n",
            prefix, i, buffer->mSourceHandle, buffer->mGraphicBuffer->handle);
    }

    // start buffer dump check and process
    String8 name;
    String8 name_prefix;

    BufferQueueDump::getDumpFileName(name, mName);

    for (size_t i = 0; i < mRingBuffer.getValidSize(); i++) {
        const sp<BackupBuffer>& buffer = getItem(i);
        name_prefix = String8::format("[%s](Backup%02u_H%p_ts%" PRId64 ")",
                                      name.string(), i, buffer->mSourceHandle, ns2ms(buffer->mTimeStamp));
        getGraphicBufferUtil().dump(buffer->mGraphicBuffer, name_prefix.string(), DUMP_FILE_PATH);

        BQD_LOGI("[dump] Backup:%02u, handle(source=%p, backup=%p)",
            i, buffer->mSourceHandle, buffer->mGraphicBuffer->handle);
    }
}

std::string RecentEventLogger::dump() const {
    std::lock_guard<std::mutex> lk(mLock);

    //TODO: replace String8 with std::string completely in this function
    String8 buffer;

    buffer.appendFormat("last %zu events\n", mRecentEvents.size());
    int j = 0;
    for (int i = mRecentEvents.size() - 1; i >= 0; --i) {
        const auto& ev = mRecentEvents[i];
        struct tm * timeinfo = localtime(&(ev.mWallTime.tv_sec));
        buffer.appendFormat("\t%2d (ts=%.9f, wall=%02d:%02d:%02d.%03d) ",
                            ++j, ev.mEvent.timestamp/1e9, timeinfo->tm_hour, timeinfo->tm_min, timeinfo->tm_sec,
                            (int) ns2ms(ev.mWallTime.tv_nsec));

        // data
        if (mSensorType == SENSOR_TYPE_STEP_COUNTER) {
            buffer.appendFormat("%" PRIu64 ", ", ev.mEvent.u64.step_counter);
        } else {
            for (size_t k = 0; k < mEventSize; ++k) {
                buffer.appendFormat("%.2f, ", ev.mEvent.data[k]);
            }
        }
        buffer.append("\n");
    }
    return std::string(buffer.string());
}

void SensorService::SensorEventConnection::dump(String8& result) {
    Mutex::Autolock _l(mConnectionLock);
    result.appendFormat("\tOperating Mode: %s\n",mDataInjectionMode ? "DATA_INJECTION" : "NORMAL");
    result.appendFormat("\t %s | WakeLockRefCount %d | uid %d | cache size %d | "
            "max cache size %d\n", mPackageName.string(), mWakeLockRefCount, mUid, mCacheSize,
            mMaxCacheSize);
    for (size_t i = 0; i < mSensorInfo.size(); ++i) {
        const FlushInfo& flushInfo = mSensorInfo.valueAt(i);
        result.appendFormat("\t %s 0x%08x | status: %s | pending flush events %d \n",
                            mService->getSensorName(mSensorInfo.keyAt(i)).string(),
                            mSensorInfo.keyAt(i),
                            flushInfo.mFirstFlushPending ? "First flush pending" :
                                                           "active",
                            flushInfo.mPendingFlushEventsToSend);
    }
#if DEBUG_CONNECTIONS
    result.appendFormat("\t events recvd: %d | sent %d | cache %d | dropped %d |"
            " total_acks_needed %d | total_acks_recvd %d\n",
            mEventsReceived,
            mEventsSent,
            mEventsSentFromCache,
            mEventsReceived - (mEventsSentFromCache + mEventsSent + mCacheSize),
            mTotalAcksNeeded,
            mTotalAcksReceived);
#endif
}

void RenderEngine::dump(String8& result) {
    const GLExtensions& extensions(GLExtensions::getInstance());
    result.appendFormat("GLES: %s, %s, %s\n",
                        extensions.getVendor(),
                        extensions.getRenderer(),
                        extensions.getVersion());
    result.appendFormat("%s\n", extensions.getExtension());
}

        static bool find(String8& result,
                const String8& pattern, const char* const search, bool exact) {

            // in the emulator case, we just return the hardcoded name
            // of the software renderer.
            if (checkGlesEmulationStatus() == 0) {
                ALOGD("Emulator without GPU support detected. "
                      "Fallback to software renderer.");
#if defined(__LP64__)
                result.setTo("/system/lib64/egl/libGLES_android.so");
#else
                result.setTo("/system/lib/egl/libGLES_android.so");
#endif
                return true;
            }

            if (exact) {
                String8 absolutePath;
                absolutePath.appendFormat("%s/%s.so", search, pattern.string());
                if (!access(absolutePath.string(), R_OK)) {
                    result = absolutePath;
                    return true;
                }
                return false;
            }

            DIR* d = opendir(search);
            if (d != NULL) {
                struct dirent cur;
                struct dirent* e;
                while (readdir_r(d, &cur, &e) == 0 && e) {
                    if (e->d_type == DT_DIR) {
                        continue;
                    }
                    if (!strcmp(e->d_name, "libGLES_android.so")) {
                        // always skip the software renderer
                        continue;
                    }
                    if (strstr(e->d_name, pattern.string()) == e->d_name) {
                        if (!strcmp(e->d_name + strlen(e->d_name) - 3, ".so")) {
                            result.clear();
                            result.appendFormat("%s/%s", search, e->d_name);
                            closedir(d);
                            return true;
                        }
                    }
                }
                closedir(d);
            }
            return false;
        }

void Camera3ZslStream::dump(int fd, const Vector<String16> &args) const {
    (void) args;

    String8 lines;
    lines.appendFormat("    Stream[%d]: ZSL\n", mId);
    write(fd, lines.string(), lines.size());

    Camera3IOStreamBase::dump(fd, args);

    lines = String8();
    lines.appendFormat("      Input buffers pending: %zu, in flight %zu\n",
            mInputBufferQueue.size(), mBuffersInFlight.size());
    write(fd, lines.string(), lines.size());
}

void SensorDevice::dump(String8& result)
{
    if (!mSensorModule) return;
    sensor_t const* list;
    ssize_t count = mSensorModule->get_sensors_list(mSensorModule, &list);

    result.appendFormat("halVersion 0x%08x\n", getHalDeviceVersion());
    result.appendFormat("%d h/w sensors:\n", int(count));

    Mutex::Autolock _l(mLock);
    for (size_t i=0 ; i<size_t(count) ; i++) {
        const Info& info = mActivationCount.valueFor(list[i].handle);
        if (info.batchParams.isEmpty()) continue;
        result.appendFormat("handle=0x%08x, active-count=%zu, batch_period(ms)={ ", list[i].handle,
                            info.batchParams.size());
        for (size_t j = 0; j < info.batchParams.size(); j++) {
            const BatchParams& params = info.batchParams.valueAt(j);
            result.appendFormat("%4.1f%s", params.batchDelay / 1e6f,
                                j < info.batchParams.size() - 1 ? ", " : "");
        }
        result.appendFormat(" }, selected=%4.1f ms\n", info.bestBatchParams.batchDelay / 1e6f);

        result.appendFormat("handle=0x%08x, active-count=%zu, batch_timeout(ms)={ ", list[i].handle,
                            info.batchParams.size());
        for (size_t j = 0; j < info.batchParams.size(); j++) {
            BatchParams params = info.batchParams.valueAt(j);
            result.appendFormat("%4.1f%s", params.batchTimeout / 1e6f,
                                j < info.batchParams.size() - 1 ? ", " : "");
        }
        result.appendFormat(" }, selected=%4.1f ms\n", info.bestBatchParams.batchTimeout / 1e6f);
    }
}

static void
InternalSetAudioRoutesGB(SwitchState aState)
{
  audio_io_handle_t handle = 
    AudioSystem::getOutput((AudioSystem::stream_type)AudioSystem::SYSTEM);
  String8 cmd;

  if (aState == SWITCH_STATE_HEADSET || aState == SWITCH_STATE_HEADPHONE) {
    cmd.appendFormat("routing=%d", GetRoutingMode(nsIAudioManager::FORCE_HEADPHONES));
  } else if (aState == SWITCH_STATE_OFF) {
    cmd.appendFormat("routing=%d", GetRoutingMode(nsIAudioManager::FORCE_SPEAKER));
  }

  AudioSystem::setParameters(handle, cmd);
}

String8 Status::toString8() const {
    String8 ret;
    if (mException == EX_NONE) {
        ret.append("No error");
    } else {
        ret.appendFormat("Status(%d): '", mException);
        if (mException == EX_SERVICE_SPECIFIC ||
            mException == EX_TRANSACTION_FAILED) {
            ret.appendFormat("%d: ", mErrorCode);
        }
        ret.append(String8(mMessage));
        ret.append("'");
    }
    return ret;
}

void HDMIAudioCaps::getRatesForAF(String8& rates) {
    Mutex::Autolock _l(mLock);
    rates.clear();

    // If the sink does not support basic audio, then it supports no audio.
    if (!mBasicAudioSupported)
        return;

    // Basic audio always supports from 32k through 38k.
    uint32_t tmp = kSR_32000 | kSR_44100 | kSR_48000;

    // To keep things simple, only report mode information for the PCM mode
    // which supports the maximum number of channels.
    ssize_t ndx = getMaxChModeNdx_l();
    if (ndx >= 0)
        tmp |= mModes[ndx].sr_bitmask;

    bool first = true;
    for (uint32_t i = 1; tmp; i <<= 1) {
        if (i & tmp) {
            rates.appendFormat(first ? "%d" : "|%d", srMaskToSR(i));
            first = false;
            tmp &= ~i;
        }
    }
}

void HwcDebug::logHwcProps(uint32_t listFlags)
{
    static int hwcModuleCompType = -1;
    static int sMdpCompMaxLayers = 0;
    static String8 hwcModuleCompTypeLog("");
    if (-1 == hwcModuleCompType) {
        // One time stuff
        char mdpCompPropStr[PROPERTY_VALUE_MAX];
        if (property_get("debug.mdpcomp.maxlayer", mdpCompPropStr, NULL) > 0) {
            sMdpCompMaxLayers = atoi(mdpCompPropStr);
        }
        hwcModuleCompType =
            qdutils::QCCompositionType::getInstance().getCompositionType();
        hwcModuleCompTypeLog.appendFormat("%s%s%s%s%s%s",
            // Is hwc module composition type now a bit-field?!
            (hwcModuleCompType == qdutils::COMPOSITION_TYPE_GPU)?
                "[GPU]": "",
            (hwcModuleCompType & qdutils::COMPOSITION_TYPE_MDP)?
                "[MDP]": "",
            (hwcModuleCompType & qdutils::COMPOSITION_TYPE_C2D)?
                "[C2D]": "",
            (hwcModuleCompType & qdutils::COMPOSITION_TYPE_CPU)?
                "[CPU]": "",
            (hwcModuleCompType & qdutils::COMPOSITION_TYPE_DYN)?
                "[DYN]": "",
            (hwcModuleCompType >= (qdutils::COMPOSITION_TYPE_DYN << 1))?
                "[???]": "");
    }
    ALOGI("Display[%s] Layer[*] %s-HwcModuleCompType, %d-layer MdpComp %s",
         mDisplayName, hwcModuleCompTypeLog.string(), sMdpCompMaxLayers,
        (listFlags & HWC_GEOMETRY_CHANGED)? "[HwcList Geometry Changed]": "");
}

static void throwExceptionWithRowCol(JNIEnv* env, jint row, jint column) {
    String8 msg;
    msg.appendFormat("Couldn't read row %d, col %d from CursorWindow.  "
            "Make sure the Cursor is initialized correctly before accessing data from it.",
            row, column);
    jniThrowException(env, "java/lang/IllegalStateException", msg.string());
}

nsresult
AudioManager::Observe(nsISupports* aSubject,
                      const char* aTopic,
                      const PRUnichar* aData)
{
  if (!strcmp(aTopic, BLUETOOTH_SCO_STATUS_CHANGED)) {
    if (aData) {
      String8 cmd;
      cmd.appendFormat("bt_samplerate=%d", kBtSampleRate);
      AudioSystem::setParameters(0, cmd);
      const char* address = NS_ConvertUTF16toUTF8(nsDependentString(aData)).get();
      AudioSystem::setDeviceConnectionState(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET,
                                            AUDIO_POLICY_DEVICE_STATE_AVAILABLE, address);
      AudioSystem::setDeviceConnectionState(AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET,
                                            AUDIO_POLICY_DEVICE_STATE_AVAILABLE, address);
    } else {
      AudioSystem::setDeviceConnectionState(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET,
                                            AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, "");
      AudioSystem::setDeviceConnectionState(AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET,
                                            AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE, "");
    }

    return NS_OK;
  }
  return NS_ERROR_UNEXPECTED;
}

static String8 GetSessionIdString(const Vector<uint8_t> &sessionId) {
    String8 sessionIdStr;
    for (size_t i = 0; i < sessionId.size(); ++i) {
        sessionIdStr.appendFormat("%u ", sessionId[i]);
    }
    return sessionIdStr;
}