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https://github.com/RGBCube/serenity
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Kernel: Make ProcessTracer inherit from File.
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parent
7ec1f6ab3c
commit
e886337a67
12 changed files with 105 additions and 182 deletions
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@ -84,7 +84,7 @@ dword BXVGADevice::find_framebuffer_address()
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return framebuffer_address;
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}
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Region* BXVGADevice::mmap(Process& process, LinearAddress preferred_laddr, size_t offset, size_t size)
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KResultOr<Region*> BXVGADevice::mmap(Process& process, LinearAddress preferred_laddr, size_t offset, size_t size)
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{
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ASSERT(offset == 0);
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ASSERT(size == framebuffer_size_in_bytes());
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@ -18,7 +18,7 @@ public:
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void set_y_offset(int);
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virtual int ioctl(Process&, unsigned request, unsigned arg) override;
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virtual Region* mmap(Process&, LinearAddress preferred_laddr, size_t offset, size_t) override;
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virtual KResultOr<Region*> mmap(Process&, LinearAddress preferred_laddr, size_t offset, size_t) override;
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size_t framebuffer_size_in_bytes() const { return m_framebuffer_size.area() * sizeof(dword) * 2; }
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Size framebuffer_size() const { return m_framebuffer_size; }
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@ -7,7 +7,7 @@ class BlockDevice : public Device {
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public:
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virtual ~BlockDevice() override;
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virtual Region* mmap(Process&, LinearAddress preferred_laddr, size_t offset, size_t size) = 0;
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virtual bool is_seekable() const override { return true; }
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protected:
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BlockDevice(unsigned major, unsigned minor) : Device(major, minor) { }
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@ -13,17 +13,7 @@ Device::~Device()
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VFS::the().unregister_device(*this);
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}
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KResultOr<Retained<FileDescriptor>> Device::open(int options)
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String Device::absolute_path() const
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{
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UNUSED_PARAM(options);
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return FileDescriptor::create(this);
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}
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void Device::close()
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{
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}
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int Device::ioctl(Process&, unsigned, unsigned)
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{
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return -ENOTTY;
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return String::format("device:%u,%u (%s)", m_major, m_minor, class_name());
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}
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@ -33,42 +33,21 @@
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// - Subclasses should take care to validate incoming addresses before dereferencing.
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//
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#include <AK/Retainable.h>
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#include <AK/Types.h>
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#include <Kernel/FileSystem/FileDescriptor.h>
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#include <Kernel/File.h>
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class Process;
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class Device : public Retainable<Device> {
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class Device : public File {
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public:
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virtual ~Device();
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InodeMetadata metadata() const { return { }; }
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virtual KResultOr<Retained<FileDescriptor>> open(int options);
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virtual void close();
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virtual bool can_read(Process&) const = 0;
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virtual bool can_write(Process&) const = 0;
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virtual ssize_t read(Process&, byte*, ssize_t) = 0;
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virtual ssize_t write(Process&, const byte*, ssize_t) = 0;
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virtual ~Device() override;
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unsigned major() const { return m_major; }
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unsigned minor() const { return m_minor; }
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virtual bool is_tty() const { return false; }
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virtual bool is_master_pty() const { return false; }
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virtual int ioctl(Process&, unsigned request, unsigned arg);
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virtual const char* class_name() const = 0;
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virtual String absolute_path() const override;
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uid_t uid() const { return m_uid; }
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uid_t gid() const { return m_gid; }
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virtual bool is_block_device() const { return false; }
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virtual bool is_character_device() const { return false; }
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virtual bool is_device() const override { return true; }
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protected:
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Device(unsigned major, unsigned minor);
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