[file-roller: 3/8] Give thread count to libarchive xz

[Paolo Bacchilega <paobac src gnome org>]

commit f9a6d805e3671dfb489d96af612899dc1684f5c5
Author: Julian Groß <firedefender1 googlemail com>
Date:   Sun Mar 14 20:04:23 2021 +0100

    Give thread count to libarchive xz

 src/fr-archive-libarchive.c | 7 +++++++
 1 file changed, 7 insertions(+)
---
diff --git a/src/fr-archive-libarchive.c b/src/fr-archive-libarchive.c
index 12ab16e3..b8d87121 100644
--- a/src/fr-archive-libarchive.c
+++ b/src/fr-archive-libarchive.c
@@ -33,6 +33,7 @@
 #include "file-utils.h"
 #include "fr-error.h"
 #include "fr-archive-libarchive.h"
+#include "fr-thread-count.h"
 #include "gio-utils.h"
 #include "glib-utils.h"
 #include "typedefs.h"
@@ -1544,6 +1545,12 @@ _archive_write_set_format_from_context (struct archive *a,
                }
                if (compression_level != NULL)
                        archive_write_set_filter_option (a, NULL, "compression-level", compression_level);
+
+               /* set the amount of threads */
+
+               if (archive_filter == ARCHIVE_FILTER_XZ) {
+                       archive_write_set_filter_option (a, NULL, "threads", fr_get_thread_count());
+                }
        }
 }