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-rw-r--r--lib/common_test/src/ct.erl35
1 files changed, 35 insertions, 0 deletions
diff --git a/lib/common_test/src/ct.erl b/lib/common_test/src/ct.erl
index 875301a8b2..69e371a30f 100644
--- a/lib/common_test/src/ct.erl
+++ b/lib/common_test/src/ct.erl
@@ -89,6 +89,8 @@
-export([get_target_name/1]).
-export([parse_table/1, listenv/1]).
+-export([remaining_test_procs/0]).
+
%%----------------------------------------------------------------------
%% Exported types
%%----------------------------------------------------------------------
@@ -1474,3 +1476,36 @@ continue() ->
%%% in order to let the test case proceed.</p>
continue(TestCase) ->
test_server:continue(TestCase).
+
+
+%%%-----------------------------------------------------------------
+%%% @spec remaining_test_procs() -> {TestProcs,SharedGL,OtherGLs}
+%%% TestProcs = [{pid(),GL}]
+%%% GL = SharedGL = pid()
+%%% OtherGLs = [pid()]
+%%%
+%%% @doc <p>This function will return the identity of test- and group
+%%% leader processes that are still running at the time of this call.
+%%% TestProcs are processes in the system that have a Common Test IO
+%%% process as group leader. SharedGL is the central Common Test
+%%% IO process, responsible for printing to log files for configuration
+%%% functions and sequentially executing test cases. OtherGLs are
+%%% Common Test IO processes that print to log files for test cases
+%%% in parallel test case groups.</p>
+%%% <p>The process information returned by this function may be
+%%% used to locate and terminate remaining processes after tests have
+%%% finished executing. The function would typically by called from
+%%% Common Test Hook functions.</p>
+%%% <p>Note that processes that execute configuration functions or
+%%% test cases are never included in TestProcs. It is therefore safe
+%%% to use post configuration hook functions (such as post_end_per_suite,
+%%% post_end_per_group, post_end_per_testcase) to terminate all processes
+%%% in TestProcs that have the current group leader process as its group
+%%% leader.</p>
+%%% <p>Note also that the shared group leader (SharedGL) must never be
+%%% terminated by the user, only by Common Test. Group leader processes
+%%% for parallel test case groups (OtherGLs) may however be terminated
+%%% in post_end_per_group hook functions.</p>
+%%%
+remaining_test_procs() ->
+ ct_util:remaining_test_procs().