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https://github.com/fergalmoran/ladybird.git
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9f2b9c82bf
Implemented some syscalls: dup(), dup2(), getdtablesize(). FileHandle is now a retainable, since that's needed for dup()'ed fd's. I didn't really test any of this beyond a basic smoke check.
65 lines
1.4 KiB
C++
65 lines
1.4 KiB
C++
#pragma once
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#include "VirtualFileSystem.h"
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#include "InodeMetadata.h"
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#include <AK/ByteBuffer.h>
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#include <AK/Retainable.h>
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class TTY;
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class FileHandle : public Retainable<FileHandle> {
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public:
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static RetainPtr<FileHandle> create(RetainPtr<VirtualFileSystem::Node>&&);
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~FileHandle();
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RetainPtr<FileHandle> clone();
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int close();
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Unix::off_t seek(Unix::off_t, int whence);
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Unix::ssize_t read(byte*, Unix::size_t);
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Unix::ssize_t write(const byte* data, Unix::size_t);
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int stat(Unix::stat*);
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bool hasDataAvailableForRead();
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ssize_t get_dir_entries(byte* buffer, Unix::size_t);
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ByteBuffer readEntireFile();
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String absolute_path() const;
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bool isDirectory() const;
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bool isTTY() const;
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const TTY* tty() const;
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TTY* tty();
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InodeMetadata metadata() const { return m_vnode->metadata(); }
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VirtualFileSystem::Node* vnode() { return m_vnode.ptr(); }
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#ifdef SERENITY
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bool isBlocking() const { return m_isBlocking; }
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void setBlocking(bool b) { m_isBlocking = b; }
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#endif
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ByteBuffer& generatorCache() { return m_generatorCache; }
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private:
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friend class VirtualFileSystem;
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explicit FileHandle(RetainPtr<VirtualFileSystem::Node>&&);
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RetainPtr<VirtualFileSystem::Node> m_vnode;
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Unix::off_t m_currentOffset { 0 };
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ByteBuffer m_generatorCache;
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#ifdef SERENITY
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int m_fd { -1 };
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bool m_isBlocking { true };
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#endif
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};
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