diff options
Diffstat (limited to 'build2/scheduler.hxx')
| -rw-r--r-- | build2/scheduler.hxx | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/build2/scheduler.hxx b/build2/scheduler.hxx index d90a26f..aac9425 100644 --- a/build2/scheduler.hxx +++ b/build2/scheduler.hxx @@ -426,6 +426,13 @@ namespace build2 size_t stat_max_waiters_; size_t stat_wait_collisions_; + // Progress counter. + // + // We increment it for each active->waiting->ready->active transition + // and it is used for deadlock detection (see deactivate()). + // + size_t progress_; + // Wait queue. // // A wait slot blocks a bunch of threads. When they are (all) unblocked, @@ -456,7 +463,7 @@ namespace build2 // // Each queue has its own mutex plus we have an atomic total count of the // queued tasks. Note that it should only be modified while holding one - // of the queue lock. + // of the queue locks. // atomic_count queued_task_count_; |