1 files changed, 37 insertions, 0 deletions
diff --git a/src/util/rand.h b/src/util/rand.h
new file mode 100644
index 000000000..fa0619aa2
--- /dev/null
+++ b/src/util/rand.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) the libgit2 contributors. All rights reserved.
+ *
+ * This file is part of libgit2, distributed under the GNU GPL v2 with
+ * a Linking Exception. For full terms see the included COPYING file.
+ */
+#ifndef INCLUDE_rand_h__
+#define INCLUDE_rand_h__
+
+#include "git2_util.h"
+
+/**
+ * Initialize the random number generation subsystem.  This will
+ * seed the random number generator with the system's entropy pool,
+ * if available, and will fall back to the current time and
+ * system information if not.
+ */
+int git_rand_global_init(void);
+
+/**
+ * Seed the pseudo-random number generator.  This is not needed to be
+ * called; the PRNG is seeded by `git_rand_global_init`, but it may
+ * be useful for testing.  When the same seed is specified, the same
+ * sequence of random numbers from `git_rand_next` is emitted.
+ *
+ * @param seed the seed to use
+ */
+void git_rand_seed(uint64_t seed);
+
+/**
+ * Get the next pseudo-random number in the sequence.
+ *
+ * @return a 64-bit pseudo-random number
+ */
+uint64_t git_rand_next(void);
+
+#endif