diff options
| author | Boris Kolpackov <boris@codesynthesis.com> | 2017-02-10 08:15:48 +0200 |
|---|---|---|
| committer | Boris Kolpackov <boris@codesynthesis.com> | 2017-02-13 12:42:42 +0200 |
| commit | abccaf9596461215fce0e32322133fb6c39be44f (patch) | |
| tree | 3fc16a6e6142d65e6b47ae686ab845cc164478cc /build2/algorithm.ixx | |
| parent | bcb2a89e111a918a48a132a2a29e0c26d724591d (diff) | |
Implement parallel error propagation, keep_going mode
Keep going is the default but there is now the -s|--serial-stop that makes
the driver run serially and stop at first error.
Also fix some lockups, other minor improvements/features.
Diffstat (limited to 'build2/algorithm.ixx')
| -rw-r--r-- | build2/algorithm.ixx | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/build2/algorithm.ixx b/build2/algorithm.ixx index 33a5fe0..6bc310f 100644 --- a/build2/algorithm.ixx +++ b/build2/algorithm.ixx @@ -71,10 +71,8 @@ namespace build2 if (!t.recipe (a)) match_impl (ml, a, t, true); - //@@ MT - // - t.dependents++; - dependency_count++; + t.dependents.fetch_add (1, std::memory_order_release); + dependency_count.fetch_add (1, std::memory_order_release); // text << "M " << t << ": " << t.dependents << " " << dependency_count; } @@ -86,11 +84,14 @@ namespace build2 assert (phase == run_phase::search_match); - //@@ MT - // - assert (t.dependents != 0 && dependency_count != 0); - t.dependents--; - dependency_count--; +#ifndef NDEBUG + size_t td (t.dependents--); + size_t gd (dependency_count--); + assert (td != 0 && gd != 0); +#else + t.dependents.fetch_sub (1, std::memory_order_release); + dependency_count.fetch_sub (1, std::memory_order_release); +#endif } inline void |