69 lines
1.5 KiB
C++
69 lines
1.5 KiB
C++
#pragma once
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#include <BAN/String.h>
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#include <BAN/StringView.h>
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#include <BAN/Vector.h>
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#include <kernel/FS/Inode.h>
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#include <kernel/Thread.h>
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namespace Kernel
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{
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class Process : BAN::RefCounted<Process>
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{
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BAN_NON_COPYABLE(Process);
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BAN_NON_MOVABLE(Process);
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public:
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using entry_t = Thread::entry_t;
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public:
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static BAN::ErrorOr<BAN::RefPtr<Process>> create_kernel(entry_t, void*);
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~Process() {}
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BAN::ErrorOr<void> add_thread(entry_t, void*);
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void on_thread_exit(Thread&);
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pid_t pid() const { return m_pid; }
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BAN::ErrorOr<int> open(BAN::StringView, int);
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BAN::ErrorOr<void> close(int);
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BAN::ErrorOr<size_t> read(int, void*, size_t);
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BAN::StringView working_directory() const { return m_working_directory; }
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BAN::ErrorOr<void> set_working_directory(BAN::StringView);
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Inode& inode_for_fd(int);
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static BAN::RefPtr<Process> current() { return Thread::current()->process(); }
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private:
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Process(pid_t pid) : m_pid(pid) {}
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BAN::ErrorOr<BAN::String> absolute_path_of(BAN::StringView) const;
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private:
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struct OpenFileDescription
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{
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BAN::RefPtr<Inode> inode;
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BAN::String path;
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size_t offset = 0;
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uint8_t flags = 0;
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BAN::ErrorOr<size_t> read(void*, size_t);
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};
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BAN::ErrorOr<void> validate_fd(int);
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OpenFileDescription& open_file_description(int);
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BAN::ErrorOr<int> get_free_fd();
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BAN::Vector<OpenFileDescription> m_open_files;
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pid_t m_pid = 0;
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BAN::String m_working_directory;
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BAN::Vector<BAN::RefPtr<Thread>> m_threads;
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friend class BAN::RefPtr<Process>;
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};
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} |