From e8038416e72616a6c53af2fc48ac7c000a82e4c8 Mon Sep 17 00:00:00 2001
From: Michal Moskal <michal@moskal.me>
Date: Mon, 3 Jul 2017 14:02:03 +0200
Subject: [PATCH] Sleep more lenient

---
 libs/core/linux.cpp | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/libs/core/linux.cpp b/libs/core/linux.cpp
index be438461..0990cbe1 100644
--- a/libs/core/linux.cpp
+++ b/libs/core/linux.cpp
@@ -92,21 +92,25 @@ void stopUser() {
     pthread_mutex_unlock(&execMutex);
 }
 
-void sleep_ms(uint32_t ms) {
-    stopUser();
-
+void sleep_core_ms(uint32_t ms) {
     struct timespec ts;
     ts.tv_sec = ms / 1000;
     ts.tv_nsec = (ms % 1000) * 1000000;
     while (nanosleep(&ts, &ts))
         ;
+}
 
-    startUser();
+void sleep_ms(uint32_t ms) {
+    if (execThread == pthread_self()) {
+        stopUser();
+        sleep_core_ms(ms);
+        startUser();
+    } else {
+        sleep_core_ms(ms);
+    }
 }
 
 void sleep_us(uint64_t us) {
-    checkUserMode();
-
     if (us > 10000) {
         sleep_ms(us / 1000);
     }