C++ (Cpp) IPC::ReadParam示例

示例#1

文件： nsFileStreams.cpp 项目： lofter2011/Icefox

bool
nsFileInputStream::Read(const IPC::Message *aMsg, void **aIter)
{
    using IPC::ReadParam;

    nsCString path;
    bool followLinks;
    PRInt32 flags;
    if (!ReadParam(aMsg, aIter, &path) ||
        !ReadParam(aMsg, aIter, &followLinks) ||
        !ReadParam(aMsg, aIter, &flags))
        return false;

    nsCOMPtr<nsIFile> file;
    nsresult rv = NS_NewNativeLocalFile(path, followLinks, getter_AddRefs(file));
    if (NS_FAILED(rv))
        return false;

    // IO flags = -1 means readonly, and
    // permissions are unimportant since we're reading
    rv = Init(file, -1, -1, flags);
    if (NS_FAILED(rv))
        return false;

    return true;
}

示例#2

bool
nsMultiplexInputStream::Read(const IPC::Message *aMsg, void **aIter)
{
    using IPC::ReadParam;

    PRUint32 count;
    if (!ReadParam(aMsg, aIter, &count))
        return PR_FALSE;

    for (PRUint32 i = 0; i < count; i++) {
        IPC::InputStream inputStream;
        if (!ReadParam(aMsg, aIter, &inputStream))
            return PR_FALSE;

        nsCOMPtr<nsIInputStream> stream(inputStream);
        nsresult rv = AppendStream(stream);
        if (NS_FAILED(rv))
            return PR_FALSE;
    }

    if (!ReadParam(aMsg, aIter, &mCurrentStream) ||
        !ReadParam(aMsg, aIter, &mStartedReadingCurrent) ||
        !ReadParam(aMsg, aIter, &mStatus))
        return PR_FALSE;

    return PR_TRUE;
}

示例#3

bool
nsPartialFileInputStream::Read(const IPC::Message *aMsg, void **aIter)
{
    using IPC::ReadParam;

    // Grab our members first.
    PRUint64 start;
    PRUint64 length;
    if (!ReadParam(aMsg, aIter, &start) ||
        !ReadParam(aMsg, aIter, &length))
        return false;

    // Then run base class deserialization.
    if (!nsFileInputStream::Read(aMsg, aIter))
        return false;

    // Set members.
    mStart = start;
    mLength = length;

    // XXX This isn't really correct, we should probably set this to whatever
    //     the sender had. However, it doesn't look like nsFileInputStream deals
    //     with sending a partially-consumed stream either, so...
    mPosition = 0;

    // Mirror nsPartialFileInputStream::Init here. We can't call it directly
    // because nsFileInputStream::Read() already calls the base class Init
    // method.
    return NS_SUCCEEDED(nsFileInputStream::Seek(NS_SEEK_SET, start));
}

示例#4

文件： nsMIMEInputStream.cpp 项目： Akin-Net/mozilla-central

PRBool
nsMIMEInputStream::Read(const IPC::Message *aMsg, void **aIter)
{
    using IPC::ReadParam;

    if (!ReadParam(aMsg, aIter, &mHeaders) ||
        !ReadParam(aMsg, aIter, &mContentLength) ||
        !ReadParam(aMsg, aIter, &mStartedReading))
        return PR_FALSE;

    // nsMIMEInputStream::Init() already appended mHeaderStream & mCLStream
    mHeaderStream->ShareData(mHeaders.get(),
                             mStartedReading? mHeaders.Length() : 0);
    mCLStream->ShareData(mContentLength.get(),
                         mStartedReading? mContentLength.Length() : 0);

    IPC::InputStream inputStream;
    if (!ReadParam(aMsg, aIter, &inputStream))
        return PR_FALSE;

    nsCOMPtr<nsIInputStream> stream(inputStream);
    mData = stream;
    if (stream) {
        nsresult rv = mStream->AppendStream(mData);
        if (NS_FAILED(rv))
            return PR_FALSE;
    }

    if (!ReadParam(aMsg, aIter, &mAddContentLength))
        return PR_FALSE;

    return PR_TRUE;
}

示例#5

文件： nsBufferedStreams.cpp 项目： FunkyVerb/devtools-window

bool
nsBufferedInputStream::Read(const IPC::Message *aMsg, void **aIter)
{
    using IPC::ReadParam;

    PRUint32 bufferSize;
    IPC::InputStream inputStream;
    if (!ReadParam(aMsg, aIter, &bufferSize) ||
        !ReadParam(aMsg, aIter, &inputStream))
        return false;

    nsCOMPtr<nsIInputStream> stream(inputStream);
    nsresult rv = Init(stream, bufferSize);
    if (NS_FAILED(rv))
        return false;

    return true;
}

示例#6

文件： nsBufferedStreams.cpp 项目： mmmulani/v8monkey

PRBool
nsBufferedInputStream::Read(const IPC::Message *aMsg, void **aIter)
{
#ifdef MOZ_IPC
    using IPC::ReadParam;

    PRUint32 bufferSize;
    IPC::InputStream inputStream;
    if (!ReadParam(aMsg, aIter, &bufferSize) ||
        !ReadParam(aMsg, aIter, &inputStream))
        return PR_FALSE;

    nsCOMPtr<nsIInputStream> stream(inputStream);
    nsresult rv = Init(stream, bufferSize);
    if (NS_FAILED(rv))
        return PR_FALSE;

    return PR_TRUE;
#else
    return PR_FALSE;
#endif
}

示例#7

bool
nsStringInputStream::Read(const IPC::Message *aMsg, void **aIter)
{
    using IPC::ReadParam;

    nsCAutoString value;

    if (!ReadParam(aMsg, aIter, &value))
        return PR_FALSE;

    nsresult rv = SetData(value.get(), value.Length());
    if (NS_FAILED(rv))
        return PR_FALSE;

    return PR_TRUE;
}