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Kernel: Make SharedMemory inherit from File.

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This commit is contained in:
Andreas Kling 2019-04-28 22:31:31 +02:00
parent a6d407fec5
commit a104d7cc93
5 changed files with 57 additions and 20 deletions
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14
Kernel/SharedMemory.h
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@ -5,14 +5,15 @@
#include <AK/AKString.h>
#include <Kernel/KResult.h>
#include <Kernel/UnixTypes.h>
#include <Kernel/File.h>
class VMObject;
class SharedMemory : public Retainable<SharedMemory> {
class SharedMemory : public File {
public:
static KResultOr<Retained<SharedMemory>> open(const String& name, int flags, mode_t);
static KResult unlink(const String& name);
~SharedMemory();
virtual ~SharedMemory() override;
String name() const { return m_name; }
KResult truncate(off_t);
@ -22,6 +23,15 @@ public:
gid_t gid() const { return m_gid; }
private:
// ^File
virtual bool can_read(Process&) const override { return true; }
virtual bool can_write(Process&) const override { return true; }
virtual int read(Process&, byte*, int) override;
virtual int write(Process&, const byte*, int) override;
virtual String absolute_path() const override;
virtual const char* class_name() const override { return "SharedMemory"; }
virtual bool is_shared_memory() const override { return true; }
SharedMemory(const String& name, uid_t, gid_t, mode_t);
String m_name;