[dpdk-dev] [PATCH] eal/service: add routine to release memory.

[Vipin Varghese <vipin.varghese@intel.com>]

The routine rte_service_finalize cehcks if service is initialized,
if yes releases the internal meory for services and lcore states.

This routine is to be invoked at end of application termiantion.

Signed-off-by: Vipin Varghese <vipin.varghese@intel.com>
---
 lib/librte_eal/common/include/rte_service.h | 12 ++++++++++++
 lib/librte_eal/common/rte_service.c         | 13 +++++++++++++
 lib/librte_eal/rte_eal_version.map          |  1 +
 3 files changed, 26 insertions(+)

diff --git a/lib/librte_eal/common/include/rte_service.h b/lib/librte_eal/common/include/rte_service.h
index 02b1512..1b2b8e7 100644
--- a/lib/librte_eal/common/include/rte_service.h
+++ b/lib/librte_eal/common/include/rte_service.h
@@ -429,6 +429,18 @@ int32_t rte_service_attr_get(uint32_t id, uint32_t attr_id,
  */
 int32_t rte_service_attr_reset_all(uint32_t id);
 
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice
+ *
+ * Free up the memory that has been initialized.
+ *
+ * This routine is to be invoked prior to process termination.
+ *
+ * @retval None
+ */
+void rte_service_finalize(void);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/lib/librte_eal/common/rte_service.c b/lib/librte_eal/common/rte_service.c
index 5f97d85..5133c98 100644
--- a/lib/librte_eal/common/rte_service.c
+++ b/lib/librte_eal/common/rte_service.c
@@ -108,6 +108,19 @@ int32_t rte_service_init(void)
 	return 0;
 }
 
+void rte_service_finalize(void)
+{
+	if (rte_service_library_initialized) {
+		if (rte_services)
+			rte_free(rte_services);
+		if (lcore_states)
+			rte_free(lcore_states);
+
+		rte_service_library_initialized = 0;
+	}
+}
+
+
 /* returns 1 if service is registered and has not been unregistered
  * Returns 0 if service never registered, or has been unregistered
  */
diff --git a/lib/librte_eal/rte_eal_version.map b/lib/librte_eal/rte_eal_version.map
index 7088b72..24d1ca7 100644
--- a/lib/librte_eal/rte_eal_version.map
+++ b/lib/librte_eal/rte_eal_version.map
@@ -245,5 +245,6 @@ EXPERIMENTAL {
 	rte_service_set_runstate_mapped_check;
 	rte_service_set_stats_enable;
 	rte_service_start_with_defaults;
+	rte_service_finalize;
 
 } DPDK_18.02;
-- 
1.9.1