Changeset f0cb0d4 for lib/trace.c

Timestamp:

11/03/15 15:44:24 (5 years ago)

Author:

Shane Alcock <salcock@…>

Branches:

4.0.1-hotfixes, cachetimestamps, develop, dpdk-ndag, etsilive, libtrace4, master, ndag_format, pfring, rc-4.0.1, rc-4.0.2, rc-4.0.3, rc-4.0.4, ringdecrementfix, ringperformance, ringtimestampfixes

Children:

733c8b4

Parents:

21c0d70

Message:

Seed the RNG when calling trace_init

If we don't do this, we can't have more than one ring/int parallel input
at a time on a host. This is because the fanout group id is chosen using
rand() and so was previously always the same value, leading to conflicts
that would cause trace_pstart() to fail.

File:

• lib/trace.c (modified) (1 diff)

lib/trace.c

@@ -136 +136 @@
 static void trace_init(void)
 {
+        struct timeval tv;
+        gettimeofday(&tv, NULL);
+        srand(tv.tv_sec);
+
         if (!formats_list) {
                 duck_constructor();