[dpdk-dev] [PATCH v2 07/10] eal: implement functions for mutex management
Narcisa Ana Maria Vasile
navasile at linux.microsoft.com
Tue Mar 23 01:20:32 CET 2021
From: Narcisa Vasile <navasile at microsoft.com>
Add functions for mutex init, destroy, lock, unlock.
Signed-off-by: Narcisa Vasile <navasile at microsoft.com>
---
lib/librte_eal/common/rte_thread.c | 24 ++++++++
lib/librte_eal/include/rte_thread.h | 55 +++++++++++++++++++
lib/librte_eal/include/rte_thread_types.h | 3 +
.../include/rte_windows_thread_types.h | 1 +
lib/librte_eal/windows/rte_thread.c | 28 ++++++++++
5 files changed, 111 insertions(+)
diff --git a/lib/librte_eal/common/rte_thread.c b/lib/librte_eal/common/rte_thread.c
index 7feaf55ee..6e0f970af 100644
--- a/lib/librte_eal/common/rte_thread.c
+++ b/lib/librte_eal/common/rte_thread.c
@@ -220,6 +220,30 @@ rte_thread_join(rte_thread_t thread_id, int *value_ptr)
return 0;
}
+int
+rte_thread_mutex_init(rte_thread_mutex_t *mutex)
+{
+ return pthread_mutex_init(mutex, NULL);
+}
+
+int
+rte_thread_mutex_lock(rte_thread_mutex_t *mutex)
+{
+ return pthread_mutex_lock(mutex);
+}
+
+int
+rte_thread_mutex_unlock(rte_thread_mutex_t *mutex)
+{
+ return pthread_mutex_unlock(mutex);
+}
+
+int
+rte_thread_mutex_destroy(rte_thread_mutex_t *mutex)
+{
+ return pthread_mutex_destroy(mutex);
+}
+
int rte_thread_cancel(rte_thread_t thread_id)
{
/*
diff --git a/lib/librte_eal/include/rte_thread.h b/lib/librte_eal/include/rte_thread.h
index 806dd8780..b72f4818e 100644
--- a/lib/librte_eal/include/rte_thread.h
+++ b/lib/librte_eal/include/rte_thread.h
@@ -238,6 +238,61 @@ int rte_thread_create(rte_thread_t *thread_id,
__rte_experimental
int rte_thread_join(rte_thread_t thread_id, int *value_ptr);
+/**
+ * Initializes a mutex.
+ *
+ * @param mutex
+ * The mutex to be initialized.
+ *
+ * @param attr
+ * Attributes for initialization of the mutex.
+ *
+ * @return
+ * On success, return 0.
+ * On failure, return a positive errno-style error number.
+ */
+__rte_experimental
+int rte_thread_mutex_init(rte_thread_mutex_t *mutex);
+
+/**
+ * Locks a mutex.
+ *
+ * @param mutex
+ * The mutex to be locked.
+ *
+ * @return
+ * On success, return 0.
+ * On failure, return a positive errno-style error number.
+ */
+__rte_experimental
+int rte_thread_mutex_lock(rte_thread_mutex_t *mutex);
+
+/**
+ * Unlocks a mutex.
+ *
+ * @param mutex
+ * The mutex to be unlocked.
+ *
+ * @return
+ * On success, return 0.
+ * On failure, return a positive errno-style error number.
+ */
+__rte_experimental
+int rte_thread_mutex_unlock(rte_thread_mutex_t *mutex);
+
+/**
+ * Releases all resources associated with a mutex.
+ *
+ * @param mutex
+ * The mutex to be uninitialized.
+ *
+ * @return
+ * On success, return 0.
+ * On failure, return a positive errno-style error number.
+ */
+__rte_experimental
+int rte_thread_mutex_destroy(rte_thread_mutex_t *mutex);
+
/**
* Terminates a thread.
*
diff --git a/lib/librte_eal/include/rte_thread_types.h b/lib/librte_eal/include/rte_thread_types.h
index a884daf17..37bc7af2b 100644
--- a/lib/librte_eal/include/rte_thread_types.h
+++ b/lib/librte_eal/include/rte_thread_types.h
@@ -7,9 +7,12 @@
#include <pthread.h>
+#define RTE_THREAD_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER
+
#define EAL_THREAD_PRIORITY_NORMAL 0
#define EAL_THREAD_PRIORITY_REALTIME_CIRTICAL 99
typedef pthread_t rte_thread_t;
+typedef pthread_mutex_t rte_thread_mutex_t;
#endif /* _RTE_THREAD_TYPES_H_ */
diff --git a/lib/librte_eal/windows/include/rte_windows_thread_types.h b/lib/librte_eal/windows/include/rte_windows_thread_types.h
index 8cb4b3856..47c6b2664 100644
--- a/lib/librte_eal/windows/include/rte_windows_thread_types.h
+++ b/lib/librte_eal/windows/include/rte_windows_thread_types.h
@@ -11,5 +11,6 @@
#define EAL_THREAD_PRIORITY_REALTIME_CIRTICAL THREAD_PRIORITY_TIME_CRITICAL
typedef DWORD rte_thread_t;
+typedef CRITICAL_SECTION rte_thread_mutex_t;
#endif /* _RTE_THREAD_TYPES_H_ */
diff --git a/lib/librte_eal/windows/rte_thread.c b/lib/librte_eal/windows/rte_thread.c
index c42f0ea93..8a2c7691a 100644
--- a/lib/librte_eal/windows/rte_thread.c
+++ b/lib/librte_eal/windows/rte_thread.c
@@ -417,6 +417,34 @@ rte_thread_join(rte_thread_t thread_id, int *value_ptr)
return ret;
}
+int
+rte_thread_mutex_init(rte_thread_mutex_t *mutex)
+{
+ InitializeCriticalSection(mutex);
+ return 0;
+}
+
+int
+rte_thread_mutex_lock(rte_thread_mutex_t *mutex)
+{
+ EnterCriticalSection(mutex);
+ return 0;
+}
+
+int
+rte_thread_mutex_unlock(rte_thread_mutex_t *mutex)
+{
+ LeaveCriticalSection(mutex);
+ return 0;
+}
+
+int
+rte_thread_mutex_destroy(rte_thread_mutex_t *mutex)
+{
+ DeleteCriticalSection(mutex);
+ return 0;
+}
+
int
rte_thread_cancel(rte_thread_t thread_id)
{
--
2.30.0.vfs.0.2
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