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Kernel: Keep signal state in sync

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In c3d231616c we added the atomic variable
m_have_any_unmasked_pending_signals tracking the state of pending signals.
Add helper functions that automatically update this variable as needed.
This commit is contained in:
Tom 2020-09-08 20:37:15 -06:00 • committed by Andreas Kling
parent dcc2c8a125
commit 92bfe40954
5 changed files with 84 additions and 19 deletions
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8
Kernel/Thread.h
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@ -411,6 +411,11 @@ public:
void send_signal(u8 signal, Process* sender);
void consider_unblock(time_t now_sec, long now_usec);
u32 update_signal_mask(u32 signal_mask);
u32 signal_mask_block(sigset_t signal_set, bool block);
u32 signal_mask() const;
void clear_signals();
void set_dump_backtrace_on_finalization() { m_dump_backtrace_on_finalization = true; }
ShouldUnblockThread dispatch_one_pending_signal();
@ -419,7 +424,8 @@ public:
void terminate_due_to_signal(u8 signal);
bool should_ignore_signal(u8 signal) const;
bool has_signal_handler(u8 signal) const;
bool has_pending_signal(u8 signal) const { return m_pending_signals & (1 << (signal - 1)); }
bool has_pending_signal(u8 signal) const;
u32 pending_signals() const;
FPUState& fpu_state() { return *m_fpu_state; }