IVGCVSW-3543 Implement the backend versioning algorithm

 * Added version structure for backends, with comparisons operators
 * Added version to IBackendInternal
 * Added version utility function to DynamicBackendUtils class

Signed-off-by: Matteo Martincigh <matteo.martincigh@arm.com>
Change-Id: I3697469675c27f79f7cfb296cfa69ec7e06375e5

1 files changed, 14 insertions, 0 deletions

diff --git a/src/backends/backendsCommon/DynamicBackendUtils.cpp b/src/backends/backendsCommon/DynamicBackendUtils.cpp
index 9a47654477..0ab02d7c98 100644
--- a/src/backends/backendsCommon/DynamicBackendUtils.cpp
+++ b/src/backends/backendsCommon/DynamicBackendUtils.cpp
@@ -34,6 +34,20 @@ void DynamicBackendUtils::CloseHandle(const void* sharedObjectHandle)
     dlclose(const_cast<void*>(sharedObjectHandle));
 }
 
+bool DynamicBackendUtils::IsBackendCompatible(const BackendVersion &backendVersion)
+{
+    BackendVersion backendApiVersion = IBackendInternal::GetApiVersion();
+
+    return IsBackendCompatibleImpl(backendApiVersion, backendVersion);
+}
+
+bool DynamicBackendUtils::IsBackendCompatibleImpl(const BackendVersion &backendApiVersion,
+                                                  const BackendVersion &backendVersion)
+{
+    return backendVersion.m_Major == backendApiVersion.m_Major &&
+           backendVersion.m_Minor <= backendApiVersion.m_Minor;
+}
+
 std::string DynamicBackendUtils::GetDlError()
 {
     const char* errorMessage = dlerror();