From 9c4dc597ddc66acfd58a945a5ab11f833731abba Mon Sep 17 00:00:00 2001
From: Russell Yanofsky <russ@yanofsky.org>
Date: Wed, 8 Nov 2017 17:07:40 -0500
Subject: Use LOCK macros for non-recursive locks

Instead of std::unique_lock.
---
 src/random.cpp | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'src/random.cpp')

diff --git a/src/random.cpp b/src/random.cpp
index fee6c2d92..7f05bcf9a 100644
--- a/src/random.cpp
+++ b/src/random.cpp
@@ -12,6 +12,7 @@
 #include <wincrypt.h>
 #endif
 #include <logging.h>  // for LogPrint()
+#include <sync.h>     // for WAIT_LOCK
 #include <utiltime.h> // for GetTime()
 
 #include <stdlib.h>
@@ -295,7 +296,7 @@ void RandAddSeedSleep()
 }
 
 
-static std::mutex cs_rng_state;
+static CWaitableCriticalSection cs_rng_state;
 static unsigned char rng_state[32] = {0};
 static uint64_t rng_counter = 0;
 
@@ -305,7 +306,7 @@ static void AddDataToRng(void* data, size_t len) {
     hasher.Write((const unsigned char*)data, len);
     unsigned char buf[64];
     {
-        std::unique_lock<std::mutex> lock(cs_rng_state);
+        WAIT_LOCK(cs_rng_state, lock);
         hasher.Write(rng_state, sizeof(rng_state));
         hasher.Write((const unsigned char*)&rng_counter, sizeof(rng_counter));
         ++rng_counter;
@@ -337,7 +338,7 @@ void GetStrongRandBytes(unsigned char* out, int num)
 
     // Combine with and update state
     {
-        std::unique_lock<std::mutex> lock(cs_rng_state);
+        WAIT_LOCK(cs_rng_state, lock);
         hasher.Write(rng_state, sizeof(rng_state));
         hasher.Write((const unsigned char*)&rng_counter, sizeof(rng_counter));
         ++rng_counter;
-- 
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