RwLock guards are Sync if T is #45682
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Currently, the compiler requires `T` to also be `Send`. There is no reason for
that. `&Rw{Read,Write}LockGuard` only provides a shared referenced to `T`, sending
that across threads is safe if `T` is `Sync`.
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r? @estebank |
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The change seems reasonable to me. I'd r+. @rust-lang/compiler, any reason to deny? |
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📌 Commit 71534c4 has been approved by |
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RwLock guards are Sync if T is
Currently, the compiler requires `T` to also be `Send`. There is no reason for
that. `&Rw{Read,Write}LockGuard` only provides a shared referenced to `T`, sending
that across threads is safe if `T` is `Sync`.
Cc @oconnor663
kennytm
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Nov 7, 2017
RwLock guards are Sync if T is
Currently, the compiler requires `T` to also be `Send`. There is no reason for
that. `&Rw{Read,Write}LockGuard` only provides a shared referenced to `T`, sending
that across threads is safe if `T` is `Sync`.
Cc @oconnor663
bors
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Nov 7, 2017
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Currently, the compiler requires
Tto also beSend. There is no reason forthat.
&Rw{Read,Write}LockGuardonly provides a shared referenced toT, sendingthat across threads is safe if
TisSync.Cc @oconnor663