From 9bd200702311fdf3794e53c56c212d9ac31728ca Mon Sep 17 00:00:00 2001
From: Mikhail Romanko <me@blankhex.com>
Date: Sun, 21 Sep 2025 21:20:31 +0300
Subject: Add BH_ThreadSleep, fix Timespec.h

---
 doc/Manual/en/BH_Thread.pod   |  9 +++++++++
 doc/Manual/ru/BH_Thread.pod   |  9 +++++++++
 include/BH/Thread.h           |  3 +++
 src/Platform/Dummy/Thread.c   |  6 ++++++
 src/Platform/Posix/Thread.c   | 19 +++++++++++++++++++
 src/Platform/Posix/Timespec.h | 17 +++++++++--------
 src/Platform/Win32/Thread.c   |  6 ++++++
 test/src/TestThread.c         | 13 +++++++++++++
 8 files changed, 74 insertions(+), 8 deletions(-)

diff --git a/doc/Manual/en/BH_Thread.pod b/doc/Manual/en/BH_Thread.pod
index 2e28fda..7520c82 100644
--- a/doc/Manual/en/BH_Thread.pod
+++ b/doc/Manual/en/BH_Thread.pod
@@ -58,6 +58,15 @@ Upon completion of the thread, the resources of the I<thread> are freed.
 Returns 0 on success, otherwise an error code.
 
 
+=head2 BH_ThreadSleep
+
+ void BH_ThreadSleep(uint32_t timeout)
+
+Makes thread sleep for the specified amount of time.
+
+The I<timeout> parameter specifies the waiting time in milliseconds.
+
+
 =head2 BH_MutexNew
 
  BH_Mutex *BH_MutexNew(void);
diff --git a/doc/Manual/ru/BH_Thread.pod b/doc/Manual/ru/BH_Thread.pod
index 5016ea8..3a2b2e5 100644
--- a/doc/Manual/ru/BH_Thread.pod
+++ b/doc/Manual/ru/BH_Thread.pod
@@ -57,6 +57,15 @@ I<callback> и данными I<data>.
 В случае успеха возвращает 0, иначе код ошибки.
 
 
+=head2 BH_ThreadSleep
+
+ void BH_ThreadSleep(uint32_t timeout)
+
+Останавливает выполнения потока на указнный промежуток времени.
+
+Параметр I<timeout> задаёт время ожидания в миллисекундах.
+
+
 =head2 BH_MutexNew
 
  BH_Mutex *BH_MutexNew(void);
diff --git a/include/BH/Thread.h b/include/BH/Thread.h
index a28f997..cffd3be 100644
--- a/include/BH/Thread.h
+++ b/include/BH/Thread.h
@@ -27,6 +27,9 @@ int BH_ThreadJoin(BH_Thread *thread);
 int BH_ThreadDetach(BH_Thread *thread);
 
 
+void BH_ThreadSleep(uint32_t timeout);
+
+
 BH_Mutex *BH_MutexNew(void);
 
 
diff --git a/src/Platform/Dummy/Thread.c b/src/Platform/Dummy/Thread.c
index 7463269..ef8fad3 100644
--- a/src/Platform/Dummy/Thread.c
+++ b/src/Platform/Dummy/Thread.c
@@ -27,3 +27,9 @@ int BH_ThreadDetach(BH_Thread *thread)
 
     return BH_NOIMPL;
 }
+
+
+void BH_ThreadSleep(uint32_t timeout)
+{
+    BH_UNUSED(timeout);
+}
diff --git a/src/Platform/Posix/Thread.c b/src/Platform/Posix/Thread.c
index 2c249d8..21f14a9 100644
--- a/src/Platform/Posix/Thread.c
+++ b/src/Platform/Posix/Thread.c
@@ -2,6 +2,7 @@
 
 #include <limits.h>
 #include <stdlib.h>
+#include <errno.h>
 
 
 struct BH_ThreadContext
@@ -95,3 +96,21 @@ int BH_ThreadDetach(BH_Thread *thread)
     free(thread);
     return BH_OK;
 }
+
+
+void BH_ThreadSleep(uint32_t timeout)
+{
+    struct timespec ts;
+    int result;
+
+    /* We don't care about nanoseconds */
+    ts.tv_sec = timeout / 1000;
+    ts.tv_nsec = (timeout % 1000) * 1000000;
+
+    do
+    {
+        result = nanosleep(&ts, &ts);
+        if (errno != EINTR)
+            break;
+    } while (result);
+}
diff --git a/src/Platform/Posix/Timespec.h b/src/Platform/Posix/Timespec.h
index 2ed157a..95b79f2 100644
--- a/src/Platform/Posix/Timespec.h
+++ b/src/Platform/Posix/Timespec.h
@@ -6,6 +6,7 @@
 #include <BH/Thread.h>
 #include <sys/time.h>
 #include <time.h>
+#include <unistd.h>
 
 
 static int convertToTimespec(struct timespec *ts,
@@ -13,16 +14,16 @@ static int convertToTimespec(struct timespec *ts,
 {
 #if (_POSIX_TIMERS > 0) || defined(BH_USE_CLOCK_GETTIME)
     if (clock_gettime(CLOCK_REALTIME, ts))
-        return BH_ERROR;
-#else
-    struct timeval tv;
+#endif
+    {
+        struct timeval tv;
 
-    if (gettimeofday(&tv, NULL))
-        return BH_ERROR;
+        if (gettimeofday(&tv, NULL))
+            return BH_ERROR;
 
-    ts->tv_sec = tv.tv_sec;
-    ts->tv_nsec = tv.tv_usec * 1000;
-#endif
+        ts->tv_sec = tv.tv_sec;
+        ts->tv_nsec = tv.tv_usec * 1000;
+    }
 
     /* Calculate absoulute time for timed wait */
     ts->tv_sec += timeout / 1000;
diff --git a/src/Platform/Win32/Thread.c b/src/Platform/Win32/Thread.c
index 88b8906..54f109e 100644
--- a/src/Platform/Win32/Thread.c
+++ b/src/Platform/Win32/Thread.c
@@ -87,3 +87,9 @@ int BH_ThreadDetach(BH_Thread *thread)
 
     return BH_OK;
 }
+
+
+void BH_ThreadSleep(uint32_t timeout)
+{
+    Sleep(timeout);
+}
diff --git a/test/src/TestThread.c b/test/src/TestThread.c
index f2a59c2..c530703 100644
--- a/test/src/TestThread.c
+++ b/test/src/TestThread.c
@@ -3,6 +3,18 @@
 #include <time.h>
 
 
+BH_UNIT_TEST(Sleep)
+{
+    time_t start;
+
+    start = time(NULL);
+    BH_ThreadSleep(5000);
+    BH_VERIFY(time(NULL) - start >= 5);
+
+    return 0;
+}
+
+
 BH_UNIT_TEST(Mutex)
 {
     BH_Mutex *mutex;
@@ -102,6 +114,7 @@ int main(int argc, char **argv)
     (void)argc;
     (void)argv;
 
+    BH_UNIT_ADD(Sleep);
     BH_UNIT_ADD(Mutex);
     BH_UNIT_ADD(Semaphore);
     BH_UNIT_ADD(Condition);
-- 
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