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Replace ReentrantMutex by a futex-based one on Linux. #95727

Merged
merged 9 commits into from
Apr 13, 2022
Merged

Replace ReentrantMutex by a futex-based one on Linux. #95727

merged 9 commits into from
Apr 13, 2022

Commits on Apr 12, 2022

  1. Add current_thread_unique_ptr() in std::sys_common.

    @m-ou-se
    m-ou-se committed Apr 12, 2022
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  2. Add futex-based ReentrantMutex on Linux.

    @m-ou-se
    m-ou-se committed Apr 12, 2022
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  3. Make current_thread_unique_ptr work during thread destruction. 

    Otherwise we can't use println!() within atexit handlers etc.
    @m-ou-se
    m-ou-se committed Apr 12, 2022
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  4. Move current_thread_unique_ptr to the only module that uses it.

    @m-ou-se
    m-ou-se committed Apr 12, 2022
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  5. Initialize thread local with const{}.

    @m-ou-se
    m-ou-se committed Apr 12, 2022
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  6. Add debug asserts to futex ReentrantMutex impl.

    @m-ou-se
    m-ou-se committed Apr 12, 2022
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  7. Add #[deny(unsafe_op_in_unsafe_fn)] to thread_local!(const). 

    This avoids 'unused unsafe' warnings when using this feature inside std.
    @m-ou-se
    m-ou-se committed Apr 12, 2022
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  8. Allow cvt_nz to be unused on some platforms.

    @m-ou-se
    m-ou-se committed Apr 12, 2022
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  9. Add missing unsafe marker. 

    This is now necessary because of deny(unsafe_op_in_unsafe_fn).
    @m-ou-se
    m-ou-se committed Apr 12, 2022
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