Method sendFile

source/kernel/kprocess.cpp:1091–1127

}

U32 KProcess::sendFile(U32 outFd, U32 inFd, U32 offset, U32 count) {
    BOXEDWINE_CRITICAL_SECTION_WITH_MUTEX(fdsMutex);
    KFileDescriptorPtr fdOut = getFileDescriptor(outFd);
    KFileDescriptorPtr fdIn = getFileDescriptor(inFd);

    if (!fdOut || !fdIn) {
        return -K_EBADFD;
    }
    U64 pos = 0;

    if (offset) {
        pos = fdIn->kobject->getPos();
        fdIn->kobject->seek(memory->readq(offset));
    } 
    
    U8 buffer[1024];
    while (count) {
        U32 todo = count;
        if (todo > 1024) {
            todo = 1024;
        }
        U32 read = (S32)fdIn->kobject->readNative(buffer, todo);
        if ((S32)read > 0) {
            fdOut->kobject->writeNative(buffer, read);
            count -= read;
        } else if (read == 0) {
            break;
        } else {
            return -K_EIO;
        }
    }
    if (offset) {
        memory->writeq(offset, fdIn->kobject->getPos());
        fdIn->kobject->seek(pos);
    }
    return 0;
}

U32 KProcess::write(KThread* thread, FD fildes, U32 bufferAddress, U32 bufferLen) {
    KFileDescriptorPtr fd = this->getFileDescriptor(fildes);