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-rw-r--r--libbuild2/operation.cxx18
-rw-r--r--libbuild2/target.cxx5
-rw-r--r--libbuild2/target.ixx15
3 files changed, 20 insertions, 18 deletions
diff --git a/libbuild2/operation.cxx b/libbuild2/operation.cxx
index bafc263..4af03fe 100644
--- a/libbuild2/operation.cxx
+++ b/libbuild2/operation.cxx
@@ -164,8 +164,9 @@ namespace build2
//
map.reserve (ctx.targets.size () / 2);
- bool e (false);
+ size_t count_matched (ctx.count_matched ());
+ bool e (false);
for (size_t pass (1); pass != 3; ++pass)
{
for (const auto& pt: ctx.targets)
@@ -180,8 +181,7 @@ namespace build2
//
const target::opstate& s (t->state[a]);
- if (s.task_count.load (memory_order_relaxed) - ctx.count_base () <
- target::offset_matched)
+ if (s.task_count.load (memory_order_relaxed) < count_matched)
continue;
// Skip if for some reason the path is not assigned.
@@ -828,8 +828,8 @@ namespace build2
// Execute unless already executed.
//
- if (s.task_count.load (memory_order_relaxed) - base !=
- target::offset_executed)
+ if (s.task_count.load (memory_order_relaxed) !=
+ base + target::offset_executed)
pretend_execute (t, pretend_execute);
};
@@ -891,8 +891,8 @@ namespace build2
// We are only interested in the targets that have been matched for
// this operation and are in the applied state.
//
- if (s.task_count.load (memory_order_relaxed) - base !=
- target::offset_applied)
+ if (s.task_count.load (memory_order_relaxed) !=
+ base + target::offset_applied)
continue;
if (s.resolve_counted)
@@ -924,9 +924,9 @@ namespace build2
// Only consider targets that have been matched for this operation
// (since matching is what causes the dependents count reset).
//
- size_t c (s.task_count.load (memory_order_relaxed) - base);
+ size_t c (s.task_count.load (memory_order_relaxed));
- return (c >= target::offset_applied
+ return (c >= base + target::offset_applied
? s.dependents.load (memory_order_relaxed)
: 0);
};
diff --git a/libbuild2/target.cxx b/libbuild2/target.cxx
index 19edad7..fb47b6d 100644
--- a/libbuild2/target.cxx
+++ b/libbuild2/target.cxx
@@ -1009,9 +1009,10 @@ namespace build2
const opstate& s (state[action () /* inner */]);
// Note: already synchronized.
- size_t o (s.task_count.load (memory_order_relaxed) - ctx.count_base ());
+ size_t c (s.task_count.load (memory_order_relaxed));
+ size_t b (ctx.count_base ()); // Note: cannot do (c - b)!
- if (o != offset_applied && o != offset_executed)
+ if (c != (b + offset_applied) && c != (b + offset_executed))
break;
}
// Fall through.
diff --git a/libbuild2/target.ixx b/libbuild2/target.ixx
index a550acb..f0d5cea 100644
--- a/libbuild2/target.ixx
+++ b/libbuild2/target.ixx
@@ -240,8 +240,8 @@ namespace build2
assert (ctx.phase == run_phase::match ||
ctx.phase == run_phase::execute);
- const opstate& s (state[a]);
- size_t c (s.task_count.load (mo) - ctx.count_base ());
+ size_t c (state[a].task_count.load (mo));
+ size_t b (ctx.count_base ()); // Note: cannot do (c - b)!
if (ctx.phase == run_phase::match)
{
@@ -250,7 +250,7 @@ namespace build2
// Note that we can't do >= offset_applied since offset_busy means it is
// being matched.
//
- return c == offset_applied || c == offset_executed;
+ return c == (b + offset_applied) || c == (b + offset_executed);
}
else
{
@@ -258,7 +258,7 @@ namespace build2
// least offset_matched since it must have been "achieved" before the
// phase switch.
//
- return c >= offset_matched;
+ return c >= (b + offset_matched);
}
}
@@ -298,9 +298,10 @@ namespace build2
// Note: already synchronized.
//
- size_t o (s.task_count.load (memory_order_relaxed) - ctx.count_base ());
+ size_t c (s.task_count.load (memory_order_relaxed));
+ size_t b (ctx.count_base ()); // Note: cannot do (c - b)!
- if (o == offset_tried)
+ if (c == (b + offset_tried))
return make_pair (false, target_state::unknown);
else
{
@@ -308,7 +309,7 @@ namespace build2
// latter case we are guaranteed to be synchronized since we are in the
// match phase.
//
- assert (o == offset_applied || o == offset_executed);
+ assert (c == (b + offset_applied) || c == (b + offset_executed));
return make_pair (true, (group_state (a) ? group->state[a] : s).state);
}
}