Switch from random to sequential thread identifiers.

[notmuch] / lib / message.cc

diff --git a/lib/message.cc b/lib/message.cc
index 1cda55a1e1b67b9573f7994018cc97bb73d08acc..01950505900f8d161701883b5b7a5e7dc5e67d26 100644 (file)
--- a/lib/message.cc
+++ b/lib/message.cc
@@ -42,13 +42,6 @@ struct _notmuch_message {
     Xapian::Document doc;
 };
 
-/* "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;
-
 /* We end up having to call the destructor explicitly because we had
  * to use "placement new" in order to initialize C++ objects within a
  * block that we allocated with talloc. So C++ is making talloc
@@ -192,7 +185,7 @@ _notmuch_message_create_for_message_id (notmuch_database_t *notmuch,
 
     db = static_cast<Xapian::WritableDatabase *> (notmuch->xapian_db);
     try {
-       doc.add_term (term);
+       doc.add_term (term, 0);
        talloc_free (term);
 
        doc.add_value (NOTMUCH_VALUE_MESSAGE_ID, message_id);
@@ -557,45 +550,6 @@ _notmuch_message_set_date (notmuch_message_t *message,
                            Xapian::sortable_serialise (time_value));
 }
 
-static void
-thread_id_generate (thread_id_t *thread_id)
-{
-    static int seeded = 0;
-    FILE *dev_random;
-    uint32_t value;
-    char *s;
-    int i;
-
-    if (! seeded) {
-       dev_random = fopen ("/dev/random", "r");
-       if (dev_random == NULL) {
-           srand (time (NULL));
-       } else {
-           fread ((void *) &value, sizeof (value), 1, dev_random);
-           srand (value);
-           fclose (dev_random);
-       }
-       seeded = 1;
-    }
-
-    s = thread_id->str;
-    for (i = 0; i < NOTMUCH_THREAD_ID_DIGITS; i += 8) {
-       value = rand ();
-       sprintf (s, "%08x", value);
-       s += 8;
-    }
-}
-
-void
-_notmuch_message_ensure_thread_id (notmuch_message_t *message)
-{
-    /* If not part of any existing thread, generate a new thread_id. */
-    thread_id_t thread_id;
-
-    thread_id_generate (&thread_id);
-    _notmuch_message_add_term (message, "thread", thread_id.str);
-}
-
 /* Synchronize changes made to message->doc out into the database. */
 void
 _notmuch_message_sync (notmuch_message_t *message)
@@ -646,7 +600,7 @@ _notmuch_message_add_term (notmuch_message_t *message,
     if (strlen (term) > NOTMUCH_TERM_MAX)
        return NOTMUCH_PRIVATE_STATUS_TERM_TOO_LONG;
 
-    message->doc.add_term (term);
+    message->doc.add_term (term, 0);
 
     talloc_free (term);