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| author | Matthias Lang <[email protected]> | 2010-08-19 15:12:26 +0200 |
|---|---|---|
| committer | Patrik Nyblom <[email protected]> | 2012-04-17 16:11:26 +0200 |
| commit | e2277e240790930563b0833854e7bc6a8338cf5c (patch) | |
| tree | 7cadd3a34cd454ff4b26bfcc2827a6a201520cc7 /lib/dialyzer/test/small_SUITE_data/src | |
| parent | f1a49c45e4b2ec746407fd777ba31fec6cab118e (diff) | |
| download | otp-e2277e240790930563b0833854e7bc6a8338cf5c.tar.gz otp-e2277e240790930563b0833854e7bc6a8338cf5c.tar.bz2 otp-e2277e240790930563b0833854e7bc6a8338cf5c.zip | |
Extend erlang:port_info/1,2 to show the OS pid of a spawned process
When spawning OS (unix) processes with erlang:open_port, store the
resulting unix pid so that it can be queried later on using
erlang:port_info/1,2.
Diffstat (limited to 'lib/dialyzer/test/small_SUITE_data/src')
| -rw-r--r-- | lib/dialyzer/test/small_SUITE_data/src/port_info_test.erl | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/dialyzer/test/small_SUITE_data/src/port_info_test.erl b/lib/dialyzer/test/small_SUITE_data/src/port_info_test.erl index 2ee9a3a6e2..07f22256c9 100644 --- a/lib/dialyzer/test/small_SUITE_data/src/port_info_test.erl +++ b/lib/dialyzer/test/small_SUITE_data/src/port_info_test.erl @@ -3,7 +3,7 @@ %% and the quality of the warnings that Dialyzer spits out %% -module(port_info_test). --export([t1/1, t2/1, t3/1, t4/1, t5/2, buggy/1]). +-export([t1/1, t2/1, t3/1, t4/1, t5/2, t6/1, buggy/1]). %% The following errors are correctly caught, but the messages are a bit weird t1(X) when is_port(X) -> @@ -28,6 +28,10 @@ t5(X, Atom) when is_port(X) -> {gazonk, _} = erlang:port_info(X, Atom); t5(_, _) -> ok. +t6(X) when is_port(X) -> + {os_pid, "42"} = erlang:port_info(X, os_pid); +t6(_) -> ok. + %% The type system is not strong enough to catch the following errors buggy(X) when is_atom(X) -> {links, X} = erlang:port_info(foo, X). |