gboolean
mcview_load_command_output (WView * view, const char *command)
{
mc_pipe_t *p;
GError *error = NULL;
mcview_close_datasource (view);
p = mc_popen (command, &error);
if (p == NULL)
{
mcview_display (view);
mcview_show_error (view, error->message);
g_error_free (error);
return FALSE;
}
/* Check if filter produced any output */
mcview_set_datasource_stdio_pipe (view, p);
if (!mcview_get_byte (view, 0, NULL))
{
mcview_close_datasource (view);
mcview_display (view);
return FALSE;
}
return TRUE;
}
gboolean
mcview_load_command_output (mcview_t * view, const char *command)
{
FILE *fp;
mcview_close_datasource (view);
open_error_pipe ();
fp = popen (command, "r");
if (fp == NULL)
{
/* Avoid two messages. Message from stderr has priority. */
mcview_display (view);
if (!close_error_pipe (mcview_is_in_panel (view) ? -1 : D_ERROR, NULL))
mcview_show_error (view, _("Cannot spawn child process"));
return FALSE;
}
/* First, check if filter produced any output */
mcview_set_datasource_stdio_pipe (view, fp);
if (!mcview_get_byte (view, 0, NULL))
{
mcview_close_datasource (view);
/* Avoid two messages. Message from stderr has priority. */
mcview_display (view);
if (!close_error_pipe (mcview_is_in_panel (view) ? -1 : D_ERROR, NULL))
mcview_show_error (view, _("Empty output from child filter"));
return FALSE;
}
else
{
/*
* At least something was read correctly. Close stderr and let
* program die if it will try to write something there.
*
* Ideally stderr should be read asynchronously to prevent programs
* from blocking (poll/select multiplexor).
*/
close_error_pipe (D_NORMAL, NULL);
}
return TRUE;
}
