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-rw-r--r--src/libmain/shared.cc6
-rw-r--r--src/libstore/local-store.cc2
2 files changed, 7 insertions, 1 deletions
diff --git a/src/libmain/shared.cc b/src/libmain/shared.cc
index ead3fc017..e869ef037 100644
--- a/src/libmain/shared.cc
+++ b/src/libmain/shared.cc
@@ -10,6 +10,7 @@
#include <cctype>
#include <exception>
+#include <sys/time.h>
#include <sys/stat.h>
#include <unistd.h>
@@ -135,6 +136,11 @@ static void initAndRun(int argc, char * * argv)
everybody. */
umask(0022);
+ /* Initialise the PRNG. */
+ struct timeval tv;
+ gettimeofday(&tv, 0);
+ srandom(tv.tv_usec);
+
/* Process the NIX_LOG_TYPE environment variable. */
string lt = getEnv("NIX_LOG_TYPE");
if (lt != "") setLogType(lt);
diff --git a/src/libstore/local-store.cc b/src/libstore/local-store.cc
index b4fc64d71..26b4cfd8c 100644
--- a/src/libstore/local-store.cc
+++ b/src/libstore/local-store.cc
@@ -48,7 +48,7 @@ static void throwSQLiteError(sqlite3 * db, const format & f)
#if HAVE_NANOSLEEP
struct timespec t;
t.tv_sec = 0;
- t.tv_nsec = 100 * 1000 * 1000; /* 0.1s */
+ t.tv_nsec = (random() % 100) * 1000 * 1000; /* <= 0.1s */
nanosleep(&t, 0);
#else
sleep(1);