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| author | Dan Gudmundsson <[email protected]> | 2017-03-21 11:59:14 +0100 |
|---|---|---|
| committer | Dan Gudmundsson <[email protected]> | 2017-04-06 15:45:06 +0200 |
| commit | b901918e7616dd346bfeb3e3c22be608a27f8da4 (patch) | |
| tree | 76f03bc8142886b8d2995fcbc4c63fe8521d6509 /lib/wx/src/wxe_master.erl | |
| parent | 7504aef08abb050d5c3d56f77704d21e15a85b62 (diff) | |
| download | otp-b901918e7616dd346bfeb3e3c22be608a27f8da4.tar.gz otp-b901918e7616dd346bfeb3e3c22be608a27f8da4.tar.bz2 otp-b901918e7616dd346bfeb3e3c22be608a27f8da4.zip | |
Avoid livelock in driver when batching commands
With a bad timing in wx:batch() the driver could get stuck
handling commands without ever checking for gui events.
Avoid that by exiting loop after the driver have done cond_wait a
couple of times.
Diffstat (limited to 'lib/wx/src/wxe_master.erl')
| -rw-r--r-- | lib/wx/src/wxe_master.erl | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/lib/wx/src/wxe_master.erl b/lib/wx/src/wxe_master.erl index e17a3327ac..913bf4d41b 100644 --- a/lib/wx/src/wxe_master.erl +++ b/lib/wx/src/wxe_master.erl @@ -82,8 +82,14 @@ init_port(SilentStart) -> %% Initalizes the opengl library %%-------------------------------------------------------------------- init_opengl() -> - GLLib = wxe_util:wxgl_dl(), - wxe_util:call(?WXE_INIT_OPENGL, <<(list_to_binary(GLLib))/binary, 0:8>>). + case get(wx_init_opengl) of + true -> {ok, "already initialized"}; + _ -> + GLLib = wxe_util:wxgl_dl(), + Res = wxe_util:call(?WXE_INIT_OPENGL, <<(list_to_binary(GLLib))/binary, 0:8>>), + element(1, Res) =:= ok andalso put(wx_init_opengl, true), + Res + end. %%-------------------------------------------------------------------- %% Fetch early messages, hack to get start up args on mac |