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Kernel: Cleanup and fix pipe

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pipe now sends SIGPIPE and returns EPIPE when writing and no readers are
open
This commit is contained in:
Bananymous
2025-05-29 01:02:22 +03:00
parent 37dea8aee7
commit 4d4fb3b6ec
4 changed files with 58 additions and 41 deletions
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8
kernel/include/kernel/FS/Pipe.h
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@@ -13,8 +13,9 @@ namespace Kernel
static BAN::ErrorOr<BAN::RefPtr<Inode>> create(const Credentials&);
virtual bool is_pipe() const override { return true; }
void clone_writing();
void close_writing();
void on_close(int status_flags) override;
void on_clone(int status_flags) override;
virtual ino_t ino() const override { return 0; } // FIXME
virtual Mode mode() const override { return { Mode::IFIFO | Mode::IRUSR | Mode::IWUSR }; }
@@ -39,7 +40,7 @@ namespace Kernel
virtual bool can_read_impl() const override { return m_buffer_size > 0; }
virtual bool can_write_impl() const override { return true; }
virtual bool has_error_impl() const override { return false; }
virtual bool has_error_impl() const override { return m_reading_count == 0; }
virtual bool has_hungup_impl() const override { return m_writing_count == 0; }
private:
@@ -58,6 +59,7 @@ namespace Kernel
size_t m_buffer_tail { 0 };
BAN::Atomic<uint32_t> m_writing_count { 1 };
BAN::Atomic<uint32_t> m_reading_count { 1 };
};
}