[thread.jthread.mem] (original) (raw)

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]

void swap(jthread& x) noexcept;

Effects: Exchanges the values of *this and x.

bool joinable() const noexcept;

Returns: get_id() != id().

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

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

[Note 1:

Operations on *this are not synchronized.

— _end note_]

Postconditions: The thread represented by *this has completed.

get_id() == id().

Error conditions:

resource_deadlock_would_occur — if deadlock is detected orget_id() == this_thread::get_id().
no_such_process — if the thread is not valid.
invalid_argument — if the thread is not joinable.

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When detach() returns,*this no longer represents the possibly continuing thread of execution.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

Postconditions: get_id() == id().

Error conditions:

no_such_process — if the thread is not valid.
invalid_argument — if the thread is not joinable.

id get_id() const noexcept;

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.