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Kernel: Add const variant of Process::perf_events()

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This lets us get rid of some const_casts.
This commit is contained in:
Andreas Kling 2021-09-07 17:35:56 +02:00
parent ec4b814c9a
commit 6f992d784f
2 changed files with 3 additions and 2 deletions
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1
Kernel/Process.h
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@ -503,6 +503,7 @@ public:
const NonnullRefPtrVector<Thread>& threads_for_coredump(Badge<Coredump>) const { return m_threads_for_coredump; } const NonnullRefPtrVector<Thread>& threads_for_coredump(Badge<Coredump>) const { return m_threads_for_coredump; }
PerformanceEventBuffer* perf_events() { return m_perf_event_buffer; } PerformanceEventBuffer* perf_events() { return m_perf_event_buffer; }
PerformanceEventBuffer const* perf_events() const { return m_perf_event_buffer; }
Memory::AddressSpace& address_space() { return *m_space; } Memory::AddressSpace& address_space() { return *m_space; }
Memory::AddressSpace const& address_space() const { return *m_space; } Memory::AddressSpace const& address_space() const { return *m_space; }

4
Kernel/ProcessSpecificExposed.cpp
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@ -162,11 +162,11 @@ KResult Process::procfs_get_unveil_stats(KBufferBuilder& builder) const
KResult Process::procfs_get_perf_events(KBufferBuilder& builder) const KResult Process::procfs_get_perf_events(KBufferBuilder& builder) const
{ {
InterruptDisabler disabler; InterruptDisabler disabler;
if (!const_cast<Process&>(*this).perf_events()) { if (!perf_events()) {
dbgln("ProcFS: No perf events for {}", pid()); dbgln("ProcFS: No perf events for {}", pid());
return KResult(ENOBUFS); return KResult(ENOBUFS);
} }
return const_cast<Process&>(*this).perf_events()->to_json(builder) ? KSuccess : KResult(EINVAL); return perf_events()->to_json(builder) ? KSuccess : KResult(EINVAL);
} }
KResult Process::procfs_get_fds_stats(KBufferBuilder& builder) const KResult Process::procfs_get_fds_stats(KBufferBuilder& builder) const