X-Git-Url: https://git.notmuchmail.org/git?p=notmuch;a=blobdiff_plain;f=notmuch-index-message.cc;h=3175d2d829b26b9c8db72d9d962bdf141cdb9851;hp=f16bd1adef052426732cc9a920c1d9325c2d4584;hb=387a28281c8b8c8025e976d610cf0dae0f196894;hpb=a2c467242ac646bb16638906dec1bd075e098674

diff --git a/notmuch-index-message.cc b/notmuch-index-message.cc
index f16bd1ad..3175d2d8 100644
--- a/notmuch-index-message.cc
+++ b/notmuch-index-message.cc
@@ -128,7 +128,40 @@ find_prefix (const char *name)
     return "";
 }
 
-int TERM_COMBINED = 0;
+/* "128 bits of thread-id ought to be enough for anybody" */
+#define NOTMUCH_THREAD_ID_BITS	 128
+#define NOTMUCH_THREAD_ID_DIGITS (NOTMUCH_THREAD_ID_BITS / 4)
+typedef struct _thread_id {
+    char str[NOTMUCH_THREAD_ID_DIGITS + 1];
+} thread_id_t;
+
+static void
+thread_id_generate (thread_id_t *thread_id)
+{
+    FILE *urandom;
+    uint32_t value;
+    char *s;
+    int i;
+
+    urandom = fopen ("/dev/urandom", "r");
+    if (urandom == NULL) {
+	fprintf (stderr, "Error opening /dev/urandom: %s\n",
+		 strerror (errno));
+	fprintf (stderr, "Perhaps notmuch needs some portability fixes for your platform?\n");
+	exit (1);
+    }
+
+    s = thread_id->str;
+    for (i = 0; i < NOTMUCH_THREAD_ID_DIGITS; i += 8) {
+	fread ((void *) &value, sizeof (value), 1, urandom);
+	sprintf (s, "%08x", value);
+	s += 8;
+    }
+
+    fclose (urandom);
+
+    printf ("Generated thread id: %s\n", thread_id->str);
+}
 
 static void
 add_term (Xapian::Document doc,
@@ -690,9 +723,13 @@ index_file (Xapian::WritableDatabase db,
 
 	g_string_free (thread_id, TRUE);
     } else if (message_id) {
-	/* If not referenced thread, use the message ID */
-	add_term (doc, "thread", message_id);
-	doc.add_value (NOTMUCH_VALUE_THREAD, message_id);
+	/* If not part of any existing thread, generate a new thread_id. */
+	thread_id_t thread_id;
+
+	thread_id_generate (&thread_id);
+
+	add_term (doc, "thread", thread_id.str);
+	doc.add_value (NOTMUCH_VALUE_THREAD, thread_id.str);
     }
 
     doc.add_value (NOTMUCH_VALUE_DATE, Xapian::sortable_serialise (time));
@@ -722,7 +759,8 @@ main (int argc, char **argv)
     GIOStatus gio_status;
     GError *error = NULL;
     int count;
-    struct timeval tv_start, tv_now;
+    struct timeval tv_start, tv_last, tv_now;
+    double elapsed;
 
     if (argc < 2) {
 	usage (argv[0]);
@@ -747,6 +785,7 @@ main (int argc, char **argv)
 	count = 0;
 
 	gettimeofday (&tv_start, NULL);
+	tv_last = tv_start;
 
 	while (1) {
 	    gio_status = g_io_channel_read_line (channel, &filename,
@@ -768,11 +807,18 @@ main (int argc, char **argv)
 	    if (count % 1000 == 0) {
 		gettimeofday (&tv_now, NULL);
 		printf ("Indexed %d messages (%g messages/second)\n",
-			count, count / ((tv_now.tv_sec - tv_start.tv_sec) +
-					(tv_now.tv_usec - tv_start.tv_usec) / 1e6));
+			count, 1000 / ((tv_now.tv_sec - tv_last.tv_sec) +
+				       (tv_now.tv_usec - tv_last.tv_usec) / 1e6));
+		tv_last = tv_now;
 	    }
 	}
 
+	gettimeofday (&tv_now, NULL);
+	elapsed = (tv_now.tv_sec - tv_start.tv_sec +
+		   (tv_now.tv_usec - tv_start.tv_usec) / 1e6);
+	printf ("Completed indexing of %d messages in %g seconds (%g messages/second)\n",
+		count, elapsed, count / elapsed);
+
     } catch (const Xapian::Error &error) {
 	cerr << "A Xapian exception occurred: " << error.get_msg () << endl;
 	exit (1);