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| author | Mike Wallace <mikewallace1979@googlemail.com> | 2014-08-21 16:39:22 +0100 |
|---|---|---|
| committer | Jay Doane <jaydoane@apache.org> | 2021-04-19 00:35:19 -0700 |
| commit | 8f14524059e359fa47c4983e699f260cc8df1374 (patch) | |
| tree | 5f4453ae6ddbb5ffbcf15bd1b9418ab7320534fb | |
| parent | 49bf9e10cbefe0c184531029a8a73dd3e74147ff (diff) | |
| download | couchdb-8f14524059e359fa47c4983e699f260cc8df1374.tar.gz | |
Try to ensure writes to stdout are flushed
This commit adds a promisingly named function to weatherreport_util
(flush_stdout/0) which attempts to ensure writes to stdout are
flushed. This is called before the script exits in order to avoid
an issue where the script output is truncated due to halt being
called before stdout is flushed.
The implementation of this function is the result of many hours
of experimentation and is quite clearly a hack.
BugzID: 33697
| -rw-r--r-- | src/weatherreport/src/weatherreport.erl | 1 | ||||
| -rw-r--r-- | src/weatherreport/src/weatherreport_util.erl | 6 |
2 files changed, 6 insertions, 1 deletions
diff --git a/src/weatherreport/src/weatherreport.erl b/src/weatherreport/src/weatherreport.erl index 67283178b..86c627376 100644 --- a/src/weatherreport/src/weatherreport.erl +++ b/src/weatherreport/src/weatherreport.erl @@ -135,6 +135,7 @@ run(InputChecks) -> halt(0); _ -> lists:foreach(fun weatherreport_check:print/1, SortedMessages), + weatherreport_util:flush_stdout(), halt(1) end, halt(1) diff --git a/src/weatherreport/src/weatherreport_util.erl b/src/weatherreport/src/weatherreport_util.erl index 37a437aee..a7957922f 100644 --- a/src/weatherreport/src/weatherreport_util.erl +++ b/src/weatherreport/src/weatherreport_util.erl @@ -32,7 +32,8 @@ run_command/1, log/3,log/4, binary_to_float/1, - should_log/1]). + should_log/1, + flush_stdout/0]). %% @doc Converts a check module name into a short name that can be %% used to refer to a check on the command line. For example, @@ -109,3 +110,6 @@ should_log(Level) -> {ok, L0} -> L0 end, twig_util:level(AppLevel) >= twig_util:level(Level). + +flush_stdout() -> + timer:sleep(1000). |