status_t
VMArea::Init(const char* name, uint32 allocationFlags)
{
// restrict the area name to B_OS_NAME_LENGTH
size_t length = strlen(name) + 1;
if (length > B_OS_NAME_LENGTH)
length = B_OS_NAME_LENGTH;
// clone the name
this->name = (char*)malloc_etc(length, allocationFlags);
if (this->name == NULL)
return B_NO_MEMORY;
strlcpy(this->name, name, length);
id = atomic_add(&sNextAreaID, 1);
return B_OK;
}
IOBuffer*
IOBuffer::Create(uint32 count, bool vip)
{
size_t size = sizeof(IOBuffer) + sizeof(iovec) * (count - 1);
IOBuffer* buffer
= (IOBuffer*)(malloc_etc(size, vip ? HEAP_PRIORITY_VIP : 0));
if (buffer == NULL)
return NULL;
buffer->fCapacity = count;
buffer->fVecCount = 0;
buffer->fUser = false;
buffer->fPhysical = false;
buffer->fVIP = vip;
buffer->fMemoryLocked = false;
return buffer;
}
