45 lines
900 B
C
45 lines
900 B
C
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#pragma once
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#include <stdint.h>
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#include "debug/debug.h"
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class Process;
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class Capability {
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public:
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enum Type {
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UNDEFINED,
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PROCESS,
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};
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Capability(void* obj, Type type, uint64_t id, uint64_t permissions)
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: obj_(obj), type_(type), id_(id), permissions_(permissions) {}
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template <typename T>
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T& obj();
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uint64_t id() { return id_; }
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bool CheckType(Type type) { return type_ == type; }
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uint64_t permissions() { return permissions_; }
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bool HasPermissions(uint64_t requested) {
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return (permissions_ & requested) == requested;
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}
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private:
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// FIXME: This should somehow be a shared ptr to keep the object alive.
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void* obj_;
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Type type_;
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uint64_t id_;
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uint64_t permissions_;
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};
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template <class Process>
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Process& Capability::obj() {
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if (type_ != PROCESS) {
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panic("Accessing %u cap as object.", type_);
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}
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return *static_cast<Process*>(obj_);
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}
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