From 96bb99f270e6100dd11cdb11b09ad1873fe7f952 Mon Sep 17 00:00:00 2001
From: Suanming Mou <suanmingm@nvidia.com>
Date: Thu, 15 Oct 2020 09:07:46 +0800
Subject: [PATCH] eal/windows: add pthread mutex

Add pthread mutex lock as it is needed for the thread safe rte_flow
functions.

Signed-off-by: Suanming Mou <suanmingm@nvidia.com>
Tested-by: Tal Shnaiderman <talshn@nvidia.com>
Acked-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Acked-by: Ranjit Menon <ranjit.menon@intel.com>
Acked-by: Narcisa Vasile <navasile@linux.microsoft.com>
---
 lib/librte_eal/windows/include/pthread.h | 33 ++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/lib/librte_eal/windows/include/pthread.h b/lib/librte_eal/windows/include/pthread.h
index a4ab4d0945..fb11a07ce6 100644
--- a/lib/librte_eal/windows/include/pthread.h
+++ b/lib/librte_eal/windows/include/pthread.h
@@ -28,6 +28,10 @@ typedef uintptr_t pthread_t;
 /* defining pthread_attr_t type on Windows since there is no in Microsoft libc*/
 typedef void *pthread_attr_t;
 
+typedef void *pthread_mutexattr_t;
+
+typedef CRITICAL_SECTION pthread_mutex_t;
+
 typedef SYNCHRONIZATION_BARRIER pthread_barrier_t;
 
 #define pthread_barrier_init(barrier, attr, count) \
@@ -146,6 +150,35 @@ pthread_join(__rte_unused pthread_t thread,
 	return 0;
 }
 
+static inline int
+pthread_mutex_init(pthread_mutex_t *mutex,
+		   __rte_unused pthread_mutexattr_t *attr)
+{
+	InitializeCriticalSection(mutex);
+	return 0;
+}
+
+static inline int
+pthread_mutex_lock(pthread_mutex_t *mutex)
+{
+	EnterCriticalSection(mutex);
+	return 0;
+}
+
+static inline int
+pthread_mutex_unlock(pthread_mutex_t *mutex)
+{
+	LeaveCriticalSection(mutex);
+	return 0;
+}
+
+static inline int
+pthread_mutex_destroy(pthread_mutex_t *mutex)
+{
+	DeleteCriticalSection(mutex);
+	return 0;
+}
+
 #ifdef __cplusplus
 }
 #endif
-- 
2.20.1