diff --git a/ChangeLog b/ChangeLog index 7888293..42598e8 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +2018-08-05 Jay Berkenbilt + + * Bug fix: infinite loop on progress reporting for very small + files. Fixes #230. + 2018-08-04 Jay Berkenbilt * Performance fix: optimize page merging operation to avoid diff --git a/libqpdf/QPDFWriter.cc b/libqpdf/QPDFWriter.cc index 447b662..30ba6f1 100644 --- a/libqpdf/QPDFWriter.cc +++ b/libqpdf/QPDFWriter.cc @@ -3357,9 +3357,10 @@ QPDFWriter::indicateProgress(bool decrement, bool finished) this->m->events_expected))); this->m->progress_reporter->reportProgress(percentage); } + int increment = std::max(1, (this->m->events_expected / 100)); while (this->m->events_seen >= this->m->next_progress_report) { - this->m->next_progress_report += (this->m->events_expected / 100); + this->m->next_progress_report += increment; } } diff --git a/qpdf/qtest/qpdf.test b/qpdf/qtest/qpdf.test index 603bbe0..bab7ec1 100644 --- a/qpdf/qtest/qpdf.test +++ b/qpdf/qtest/qpdf.test @@ -927,6 +927,17 @@ $td->runtest("don't overwrite self", show_ntests(); # ---------- +$td->notify("--- Progress reporting ---"); +$n_tests += 1; + +$td->runtest("progress report on small file", + {$td->COMMAND => "qpdf --progress minimal.pdf a.pdf", + $td->FILTER => "perl filter-progress.pl"}, + {$td->FILE => "small-progress.out", $td->EXIT_STATUS => 0}, + $td->NORMALIZE_NEWLINES); + +show_ntests(); +# ---------- $td->notify("--- Type checks ---"); $n_tests += 4; # Whenever object-types.pdf is edited, object-types-os.pdf should be diff --git a/qpdf/qtest/qpdf/small-progress.out b/qpdf/qtest/qpdf/small-progress.out new file mode 100644 index 0000000..5845dec --- /dev/null +++ b/qpdf/qtest/qpdf/small-progress.out @@ -0,0 +1,3 @@ +qpdf: a.pdf: write progress: 0% +....other write progress.... +qpdf: a.pdf: write progress: 100%