IVGCVSW-3541 Get the paths where to load the dynamic backends from

 * Adds GetBackendPaths and IsPathValid to DynamicBackendUtils
 * Adds related unit tests

Change-Id: I94e377d92a88a4b5d48026f6ad5b4d5387d20c21
Signed-off-by: Jan Eilers <jan.eilers@arm.com>
Signed-off-by: Matteo Martincigh <matteo.martincigh@arm.com>

1 files changed, 10 insertions, 1 deletions

diff --git a/src/backends/backendsCommon/DynamicBackendUtils.hpp b/src/backends/backendsCommon/DynamicBackendUtils.hpp
index 0a2d428fd3..f0bfd3b220 100644
--- a/src/backends/backendsCommon/DynamicBackendUtils.hpp
+++ b/src/backends/backendsCommon/DynamicBackendUtils.hpp
@@ -11,9 +11,14 @@
 
 #include <string>
 #include <dlfcn.h>
+#include <vector>
 
 #include <boost/format.hpp>
 
+#if !defined(DYNAMIC_BACKEND_PATHS)
+#define DYNAMIC_BACKEND_PATHS ""
+#endif
+
 namespace armnn
 {
 
@@ -28,9 +33,13 @@ public:
 
     static bool IsBackendCompatible(const BackendVersion& backendVersion);
 
+    static std::vector<std::string> GetBackendPaths(const std::string& overrideBackendPath = "");
+    static bool IsPathValid(const std::string& path);
+
 protected:
-    /// Protected for testing purposes
+    /// Protected methods for testing purposes
     static bool IsBackendCompatibleImpl(const BackendVersion& backendApiVersion, const BackendVersion& backendVersion);
+    static std::vector<std::string> GetBackendPathsImpl(const std::string& backendPaths);
 
 private:
     static std::string GetDlError();