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authorTom de Vries <tdevries@suse.de>2022-08-05 16:12:56 +0200
committerTom de Vries <tdevries@suse.de>2022-08-05 16:12:56 +0200
commitb859a3ef488cd1a3bf072f71002dced36353875b (patch)
tree9ec7af8baef949fdc2db0540b3b4b6503f08216f /gdb
parent377c3a9c91785d5df5c0d96121160e6210204cc0 (diff)
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[gdbsupport] Add task size parameter in parallel_for_each
Add a task_size parameter to parallel_for_each, defaulting to nullptr, and use the task size to distribute similarly-sized chunks to the threads. Tested on x86_64-linux.
Diffstat (limited to 'gdb')
-rw-r--r--gdb/unittests/parallel-for-selftests.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/gdb/unittests/parallel-for-selftests.c b/gdb/unittests/parallel-for-selftests.c
index 8a86b43..6e341f6 100644
--- a/gdb/unittests/parallel-for-selftests.c
+++ b/gdb/unittests/parallel-for-selftests.c
@@ -68,6 +68,34 @@ test (int n_threads)
});
SELF_CHECK (counter == 0);
+ auto task_size_max_ = [] (int iter)
+ {
+ return (size_t)SIZE_MAX;
+ };
+ auto task_size_max = gdb::make_function_view (task_size_max_);
+
+ counter = 0;
+ gdb::parallel_for_each (1, 0, NUMBER,
+ [&] (int start, int end)
+ {
+ counter += end - start;
+ }, task_size_max);
+ SELF_CHECK (counter == NUMBER);
+
+ auto task_size_one_ = [] (int iter)
+ {
+ return (size_t)1;
+ };
+ auto task_size_one = gdb::make_function_view (task_size_one_);
+
+ counter = 0;
+ gdb::parallel_for_each (1, 0, NUMBER,
+ [&] (int start, int end)
+ {
+ counter += end - start;
+ }, task_size_one);
+ SELF_CHECK (counter == NUMBER);
+
#undef NUMBER
}