[gnome-builder/wip/chergert/clang] clang: set IPC channel non-blocking

[Christian Hergert <chergert src gnome org>]

commit cd2ef1fc69389c01cc4009bda0df05f7128fb90f
Author: Christian Hergert <chergert redhat com>
Date:   Thu Apr 26 15:52:45 2018 -0700

    clang: set IPC channel non-blocking
    
    We're doing Asynchronous I/O operations on these pipes from
    both sides, so we can just set them non-blocking. It's not
    clear to me if underlying tooling will do this for us, but
    I suspect they spawn threads when in blocking mode.

 src/plugins/clang/ide-clang-client.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
---
diff --git a/src/plugins/clang/ide-clang-client.c b/src/plugins/clang/ide-clang-client.c
index 84217da3e..bb0f8ddef 100644
--- a/src/plugins/clang/ide-clang-client.c
+++ b/src/plugins/clang/ide-clang-client.c
@@ -20,6 +20,9 @@
 
 #include "config.h"
 
+#include <gio/gunixinputstream.h>
+#include <gio/gunixoutputstream.h>
+#include <glib-unix.h>
 #include <jsonrpc-glib.h>
 
 #include "ide-clang-client.h"
@@ -90,6 +93,7 @@ ide_clang_client_subprocess_spawned (IdeClangClient          *self,
   GOutputStream *output;
   GInputStream *input;
   GList *queued;
+  gint fd;
 
   IDE_ENTRY;
 
@@ -104,6 +108,15 @@ ide_clang_client_subprocess_spawned (IdeClangClient          *self,
   output = ide_subprocess_get_stdin_pipe (subprocess);
   stream = g_simple_io_stream_new (input, output);
 
+  g_assert (G_IS_UNIX_INPUT_STREAM (input));
+  g_assert (G_IS_UNIX_OUTPUT_STREAM (output));
+
+  fd = g_unix_input_stream_get_fd (G_UNIX_INPUT_STREAM (input));
+  g_unix_set_fd_nonblocking (fd, TRUE, NULL);
+
+  fd = g_unix_output_stream_get_fd (G_UNIX_OUTPUT_STREAM (output));
+  g_unix_set_fd_nonblocking (fd, TRUE, NULL);
+
   g_clear_object (&self->rpc_client);
   self->rpc_client = jsonrpc_client_new (stream);
   jsonrpc_client_set_use_gvariant (self->rpc_client, TRUE);
@@ -217,6 +230,10 @@ ide_clang_client_constructed (GObject *object)
   if (cwd != NULL)
     ide_subprocess_launcher_set_cwd (launcher, cwd);
   ide_subprocess_launcher_set_clear_env (launcher, FALSE);
+#if 0
+  ide_subprocess_launcher_push_argv (launcher, "gdbserver");
+  ide_subprocess_launcher_push_argv (launcher, "localhost:8888");
+#endif
   ide_subprocess_launcher_push_argv (launcher, PACKAGE_LIBEXECDIR"/gnome-builder-clang");
 
   self->supervisor = ide_subprocess_supervisor_new ();