Move plop:add out of gen_server

1 files changed, 20 insertions, 1 deletions

diff --git a/src/util.erl b/src/util.erl
index 435dbc8..2125d5e 100644
--- a/src/util.erl
+++ b/src/util.erl
@@ -3,7 +3,8 @@
 
 -module(util).
 -export([tempfilename/1, fsync/1, exit_with_error/3,
-         check_error/3, write_tempfile_and_rename/3]).
+         check_error/3, write_tempfile_and_rename/3,
+         spawn_and_wait/1]).
 
 -spec tempfilename(string()) -> string().
 tempfilename(Base) ->
@@ -51,3 +52,21 @@ write_tempfile_and_rename(Name, NurseryName, Content) ->
             exit_with_error(writefile, Error,
                             "Error when creating tempfile")
     end.
+
+spawn_and_wait(Fun) ->
+    ParentPid = self(),
+    ChildPid = spawn_link(fun () ->
+                                  try
+                                      Result = Fun(),
+                                      ParentPid ! {result, self(), Result}
+                                  catch
+                                      Type:What ->
+                                          [CrashFunction | Stack] = erlang:get_stacktrace(),
+                                          lager:error("Crashed process: ~p ~p~n  ~p~n  ~p~n", [Type, What, CrashFunction, Stack]),
+                                          ParentPid ! {result, self(), crash}
+                                  end
+                          end),
+    receive
+        {result, ChildPid, Result} ->
+            Result
+    end.