ladybird/Kernel/ProcessTracer.h
Andreas Kling f4cec2f110 Kernel: Move File.{cpp,h} into FileSystem/
Also tweak the kernel's Makefile to use -nostdinc and -nostdinc++.
This prevents us from picking up random headers from ../Root, which may
include older versions of kernel headers.

Since we still need <initializer_list> for Vector, we specifically include
the necessary GCC path. This is a bit hackish but it works for now.
2019-07-09 15:04:45 +02:00

42 lines
1.2 KiB
C++

#pragma once
#include <AK/CircularQueue.h>
#include <Kernel/FileSystem/File.h>
#include <Kernel/UnixTypes.h>
class ProcessTracer : public File {
public:
static NonnullRefPtr<ProcessTracer> create(pid_t pid) { return adopt(*new ProcessTracer(pid)); }
virtual ~ProcessTracer() override;
bool is_dead() const { return m_dead; }
void set_dead() { m_dead = true; }
virtual bool can_read(FileDescription&) const override { return !m_calls.is_empty() || m_dead; }
virtual int read(FileDescription&, u8*, int) override;
virtual bool can_write(FileDescription&) const override { return true; }
virtual int write(FileDescription&, const u8*, int) override { return -EIO; }
virtual String absolute_path(const FileDescription&) const override;
void did_syscall(u32 function, u32 arg1, u32 arg2, u32 arg3, u32 result);
pid_t pid() const { return m_pid; }
private:
virtual const char* class_name() const override { return "ProcessTracer"; }
explicit ProcessTracer(pid_t);
struct CallData {
u32 function;
u32 arg1;
u32 arg2;
u32 arg3;
u32 result;
};
pid_t m_pid;
bool m_dead { false };
CircularQueue<CallData, 200> m_calls;
};