RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-31 22:18:12 +00:00
Code Issues Activity Actions

Kernel: Port select to ThreadBlocker

Browse source
This commit is contained in:
Robin Burchell 2019-07-18 17:39:49 +02:00 • committed by Andreas Kling
parent 32fcfb79e9
commit 4f9ae9b970
4 changed files with 86 additions and 68 deletions
Download patch file Download diff file Expand all files Collapse all files

35
Kernel/Thread.h
View file

@ -67,7 +67,6 @@ public:
BlockedLurking,
BlockedWait,
BlockedSignal,
BlockedSelect,
BlockedCondition,
__End_Blocked_States__
};
@ -75,7 +74,7 @@ public:
class ThreadBlocker {
public:
virtual ~ThreadBlocker() {}
virtual bool should_unblock(time_t now_s, long us) = 0;
virtual bool should_unblock(Thread&, time_t now_s, long us) = 0;
};
class ThreadBlockerFileDescription : public ThreadBlocker {
@ -90,37 +89,37 @@ public:
class ThreadBlockerAccept : public ThreadBlockerFileDescription {
public:
ThreadBlockerAccept(const RefPtr<FileDescription>& description);
virtual bool should_unblock(time_t, long) override;
virtual bool should_unblock(Thread&, time_t, long) override;
};
class ThreadBlockerReceive : public ThreadBlockerFileDescription {
public:
ThreadBlockerReceive(const RefPtr<FileDescription>& description);
virtual bool should_unblock(time_t, long) override;
virtual bool should_unblock(Thread&, time_t, long) override;
};
class ThreadBlockerConnect : public ThreadBlockerFileDescription {
public:
ThreadBlockerConnect(const RefPtr<FileDescription>& description);
virtual bool should_unblock(time_t, long) override;
virtual bool should_unblock(Thread&, time_t, long) override;
};
class ThreadBlockerWrite : public ThreadBlockerFileDescription {
public:
ThreadBlockerWrite(const RefPtr<FileDescription>& description);
virtual bool should_unblock(time_t, long) override;
virtual bool should_unblock(Thread&, time_t, long) override;
};
class ThreadBlockerRead : public ThreadBlockerFileDescription {
public:
ThreadBlockerRead(const RefPtr<FileDescription>& description);
virtual bool should_unblock(time_t, long) override;
virtual bool should_unblock(Thread&, time_t, long) override;
};
class ThreadBlockerCondition : public ThreadBlocker {
public:
ThreadBlockerCondition(Function<bool()> &condition);
virtual bool should_unblock(time_t, long) override;
virtual bool should_unblock(Thread&, time_t, long) override;
private:
Function<bool()> m_block_until_condition;
@ -129,12 +128,25 @@ public:
class ThreadBlockerSleep : public ThreadBlocker {
public:
ThreadBlockerSleep(u64 wakeup_time);
virtual bool should_unblock(time_t, long) override;
virtual bool should_unblock(Thread&, time_t, long) override;
private:
u64 m_wakeup_time { 0 };
};
class ThreadBlockerSelect : public ThreadBlocker {
public:
ThreadBlockerSelect(const timeval& tv, bool select_has_timeout, const Vector<int>& read_fds, const Vector<int>& write_fds, const Vector<int>& except_fds);
virtual bool should_unblock(Thread&, time_t, long) override;
private:
timeval m_select_timeout;
bool m_select_has_timeout { false };
const Vector<int>& m_select_read_fds;
const Vector<int>& m_select_write_fds;
const Vector<int>& m_select_exceptional_fds;
};
void did_schedule() { ++m_times_scheduled; }
u32 times_scheduled() const { return m_times_scheduled; }
@ -240,17 +252,12 @@ private:
RefPtr<Region> m_kernel_stack_for_signal_handler_region;
pid_t m_waitee_pid { -1 };
int m_wait_options { 0 };
timeval m_select_timeout;
SignalActionData m_signal_action_data[32];
Region* m_signal_stack_user_region { nullptr };
OwnPtr<ThreadBlocker> m_blocker;
Vector<int> m_select_read_fds;
Vector<int> m_select_write_fds;
Vector<int> m_select_exceptional_fds;
FPUState* m_fpu_state { nullptr };
InlineLinkedList<Thread>* m_thread_list { nullptr };
State m_state { Invalid };
bool m_select_has_timeout { false };
bool m_has_used_fpu { false };
bool m_was_interrupted_while_blocked { false };
};