[Spice-devel] [PATCH spice-streaming-agent 8/9] Clean up the global try-catch block

[Frediano Ziglio]

> 
> Unify the error handling to use exceptions, narrowing down the exit
> spots for success/error to one each.
> 
> Signed-off-by: Lukáš Hrázký <lhrazky at redhat.com>
> ---
>  src/spice-streaming-agent.cpp | 17 +++++++----------
>  1 file changed, 7 insertions(+), 10 deletions(-)
> 
> diff --git a/src/spice-streaming-agent.cpp b/src/spice-streaming-agent.cpp
> index fe26f70..94419b0 100644
> --- a/src/spice-streaming-agent.cpp
> +++ b/src/spice-streaming-agent.cpp
> @@ -474,14 +474,14 @@ int main(int argc, char* argv[])
>          }
>      }
>  
> +    register_interrupts();
> +
>      try {
>          // register built-in plugins
>          MjpegPlugin::Register(&agent);
>  
>          agent.LoadPlugins(pluginsdir);
>  
> -        register_interrupts();
> -
>          FrameLog frame_log(log_filename, log_binary, log_frames);
>  
>          for (const std::string& arg: old_args) {

This register_interrupts() change seems to be off topic here.

> @@ -491,19 +491,16 @@ int main(int argc, char* argv[])
>  
>          Display *display = XOpenDisplay(NULL);
>          if (display == NULL) {
> -            syslog(LOG_ERR, "failed to open display\n");
> -            return EXIT_FAILURE;
> +            throw Error("Failed to open X display");
>          }
> +
>          int event_base, error_base;
>          if (!XFixesQueryExtension(display, &event_base, &error_base)) {
> -            syslog(LOG_ERR, "XFixesQueryExtension failed\n");
> -            return EXIT_FAILURE;
> +            throw Error("XFixesQueryExtension failed");
>          }
>          Window rootwindow = DefaultRootWindow(display);
>          XFixesSelectCursorInput(display, rootwindow,
>          XFixesDisplayCursorNotifyMask);
>  
> -        int ret = EXIT_SUCCESS;
> -
>          StreamPort stream_port(stream_port_name);
>  
>          std::thread cursor_th(cursor_changes, &stream_port, display,
>          event_base);
> @@ -513,8 +510,8 @@ int main(int argc, char* argv[])
>      }
>      catch (std::exception &err) {
>          syslog(LOG_ERR, "%s\n", err.what());
> -        ret = EXIT_FAILURE;
> +        return EXIT_FAILURE;
>      }
>  
> -    return ret;
> +    return EXIT_SUCCESS;
>  }

This makes 7/9 compile.

Frediano