C++ (Cpp) cap_frame_cap_get_capFVMRights Examples

Example #1

File: vspace.c Project: aoom/seL4

word_t* PURE lookupIPCBuffer(bool_t isReceiver, tcb_t *thread)
{
    word_t      w_bufferPtr;
    cap_t       bufferCap;
    vm_rights_t vm_rights;

    w_bufferPtr = thread->tcbIPCBuffer;
    bufferCap = TCB_PTR_CTE_PTR(thread, tcbBuffer)->cap;

    if (cap_get_capType(bufferCap) != cap_frame_cap) {
        return NULL;
    }

    vm_rights = cap_frame_cap_get_capFVMRights(bufferCap);
    if (vm_rights == VMReadWrite || (!isReceiver && vm_rights == VMReadOnly)) {
        word_t basePtr;
        unsigned int pageBits;

        basePtr = cap_frame_cap_get_capFBasePtr(bufferCap);
        pageBits = pageBitsForSize(cap_frame_cap_get_capFSize(bufferCap));
        return (word_t *)(basePtr + (w_bufferPtr & MASK(pageBits)));
    } else {
        return NULL;
    }
}

Example #2

File: objecttype.c Project: seL4/seL4

cap_t CONST Arch_maskCapRights(seL4_CapRights_t cap_rights_mask, cap_t cap)
{
    if (cap_get_capType(cap) == cap_frame_cap) {
        vm_rights_t vm_rights;

        vm_rights = vmRightsFromWord(cap_frame_cap_get_capFVMRights(cap));
        vm_rights = maskVMRights(vm_rights, cap_rights_mask);
        return cap_frame_cap_set_capFVMRights(cap, wordFromVMRights(vm_rights));
    } else {
        return cap;
    }
}