cppdraft_translate/cppdraft/thread/jthread/mem.md

[thread.jthread.mem]

32 Concurrency support library [thread]

32.4 Threads [thread.threads]

32.4.4 Class jthread [thread.jthread.class]

32.4.4.3 Members [thread.jthread.mem]

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void swap(jthread& x) noexcept;

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Effects: Exchanges the values of *this and x.

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bool joinable() const noexcept;

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Returns: get_id() != id().

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void join();

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Effects: Blocks until the thread represented by *this has completed.

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Synchronization: The completion of the thread represented by *this synchronizes with ([intro.multithread]) the corresponding successful join() return.

[Note 1:

Operations on *this are not synchronized.

— end note]

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Postconditions: The thread represented by *this has completed.

get_id() == id().

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Throws: system_error when an exception is required ([thread.req.exception]).

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Error conditions:

• (7.1)

  resource_deadlock_would_occur — if deadlock is detected orget_id() == this_thread​::​​get_id().

• (7.2)

  no_such_process — if the thread is not valid.

• (7.3)

  invalid_argument — if the thread is not joinable.

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void detach();

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Effects: The thread represented by *this continues execution without the calling thread blocking.

When detach() returns,*this no longer represents the possibly continuing thread of execution.

When the thread previously represented by *this ends execution, the implementation releases any owned resources.

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Postconditions: get_id() == id().

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Throws: system_error when an exception is required ([thread.req.exception]).

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Error conditions:

• (11.1)

  no_such_process — if the thread is not valid.

• (11.2)

  invalid_argument — if the thread is not joinable.

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id get_id() const noexcept;

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Returns: A default constructed id object if *this does not represent a thread, otherwise this_thread​::​get_id() for the thread of execution represented by *this.