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| author | Alex Crichton <alex@alexcrichton.com> | 2013-10-17 21:13:56 -0700 |
|---|---|---|
| committer | Alex Crichton <alex@alexcrichton.com> | 2013-10-17 21:14:38 -0700 |
| commit | 82f5f65076e604ec70a6e09cdbe8dddb8b3b7c44 (patch) | |
| tree | 2c7016ccf67bb995f630ae1620c072fe4f3e764b /src/libstd/managed.rs | |
| parent | d8d1b8f8be250b9e19bb70aa0968c1b4a4aec2f8 (diff) | |
| download | rust-82f5f65076e604ec70a6e09cdbe8dddb8b3b7c44.tar.gz rust-82f5f65076e604ec70a6e09cdbe8dddb8b3b7c44.zip | |
Move sys::refcount to managed::refcount
More progress on #2240
Diffstat (limited to 'src/libstd/managed.rs')
| -rw-r--r-- | src/libstd/managed.rs | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/libstd/managed.rs b/src/libstd/managed.rs index 57230b2fd24..a27c8aa4a76 100644 --- a/src/libstd/managed.rs +++ b/src/libstd/managed.rs @@ -17,6 +17,13 @@ use ptr::to_unsafe_ptr; pub static RC_MANAGED_UNIQUE : uint = (-2) as uint; pub static RC_IMMORTAL : uint = 0x77777777; +/// Returns the refcount of a shared box (as just before calling this) +#[inline] +pub fn refcount<T>(t: @T) -> uint { + use unstable::raw::Repr; + unsafe { (*t.repr()).ref_count } +} + /// Determine if two shared boxes point to the same object #[inline] pub fn ptr_eq<T>(a: @T, b: @T) -> bool { |