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| author | Graydon Hoare <[email protected]> | 2010-07-12 13:11:58 -0700 |
|---|---|---|
| committer | Graydon Hoare <[email protected]> | 2010-07-12 13:26:28 -0700 |
| commit | 7c837b8c9bd05d69083dd98f9a29d47d4a62c206 (patch) | |
| tree | 9d2c3fa8fd8c60de84b395fab56e12bfa3308466 /src/rt/rust_task.cpp | |
| parent | Add more tracing code to trans for refcount events. (diff) | |
| download | rust-7c837b8c9bd05d69083dd98f9a29d47d4a62c206.tar.xz rust-7c837b8c9bd05d69083dd98f9a29d47d4a62c206.zip | |
Correct doubly-linked list management logic; bug exposed during conversation on issue #106.
Diffstat (limited to 'src/rt/rust_task.cpp')
| -rw-r--r-- | src/rt/rust_task.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/rt/rust_task.cpp b/src/rt/rust_task.cpp index 084c8acd..43213b46 100644 --- a/src/rt/rust_task.cpp +++ b/src/rt/rust_task.cpp @@ -423,6 +423,8 @@ rust_task::link_gc(gc_alloc *gcm) { gcm->prev = NULL; gcm->next = gc_alloc_chain; gc_alloc_chain = gcm; + if (gcm->next) + gcm->next->prev = gcm; } void @@ -431,6 +433,8 @@ rust_task::unlink_gc(gc_alloc *gcm) { gcm->prev->next = gcm->next; if (gcm->next) gcm->next->prev = gcm->prev; + if (gc_alloc_chain == gcm) + gc_alloc_chain = gcm->next; gcm->prev = NULL; gcm->next = NULL; } |