Hand-apply 111f02f4fc8ace359a16aea1c88c2821bf3dde31 from master; improve progress...

[dcpomatic.git] / src / lib / job.cc

diff --git a/src/lib/job.cc b/src/lib/job.cc
index e11efa407375b03608fc077c327bcc0373ea8ec5..68aa6230abf150574c85a1b36084775b73c087f2 100644 (file)
--- a/src/lib/job.cc
+++ b/src/lib/job.cc
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2012-2014 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -38,6 +38,7 @@ using std::string;
 using std::list;
 using std::cout;
 using boost::shared_ptr;
+using boost::optional;
 
 #define LOG_ERROR_NC(...) _film->log()->log (__VA_ARGS__, Log::TYPE_ERROR);
 
@@ -224,7 +225,7 @@ Job::elapsed_time () const
 void
 Job::set_progress (float p, bool force)
 {
-       if (!force && fabs (p - progress()) < 0.01) {
+       if (!force && fabs (p - progress().get_value_or(0)) < 0.01) {
                /* Calm excessive progress reporting */
                return;
        }
@@ -243,12 +244,12 @@ Job::set_progress (float p, bool force)
        }
 }
 
-/** @return fractional progress of the current sub-job, or -1 if not known */
-float
+/** @return fractional progress of the current sub-job, if known */
+optional<float>
 Job::progress () const
 {
        boost::mutex::scoped_lock lm (_progress_mutex);
-       return _progress.get_value_or (-1);
+       return _progress;
 }
 
 void
@@ -298,26 +299,32 @@ Job::set_progress_unknown ()
 {
        boost::mutex::scoped_lock lm (_progress_mutex);
        _progress.reset ();
+       lm.unlock ();
+
+       if (ui_signaller) {
+               ui_signaller->emit (boost::bind (boost::ref (Progress)));
+       }
 }
 
 /** @return Human-readable status of this job */
 string
 Job::status () const
 {
-       float const p = progress ();
+       optional<float> p = progress ();
        int const t = elapsed_time ();
        int const r = remaining_time ();
 
-       int pc = rint (p * 100);
-       if (pc == 100) {
-               /* 100% makes it sound like we've finished when we haven't */
-               pc = 99;
-       }
-
        SafeStringStream s;
-       if (!finished ()) {
+       if (!finished () && p) {
+               int pc = rint (p.get() * 100);
+               if (pc == 100) {
+                       /* 100% makes it sound like we've finished when we haven't */
+                       pc = 99;
+               }
+               
                s << pc << N_("%");
-               if (p >= 0 && t > 10 && r > 0) {
+               
+               if (t > 10 && r > 0) {
                        /// TRANSLATORS: remaining here follows an amount of time that is remaining
                        /// on an operation.
                        s << "; " << seconds_to_approximate_hms (r) << " " << _("remaining");
@@ -341,7 +348,11 @@ Job::status () const
 int
 Job::remaining_time () const
 {
-       return elapsed_time() / progress() - elapsed_time();
+       if (progress().get_value_or(0) == 0) {
+               return elapsed_time ();
+       }
+       
+       return elapsed_time() / progress().get() - elapsed_time();
 }
 
 void