IVGCVSW-5636 'Implement NNAPI caching functions'

* Get number of inputs and outputs from optimized network.
* Get number of cached files if backend supports caching.

Signed-off-by: Sadik Armagan <sadik.armagan@arm.com>
Change-Id: Ie02ac123bb7df9b0593a2fe46b5bb564a5994780

4 files changed, 20 insertions, 0 deletions

diff --git a/include/armnn/BackendHelper.hpp b/include/armnn/BackendHelper.hpp
index 0bd37dcf29..03731ac24a 100644
--- a/include/armnn/BackendHelper.hpp
+++ b/include/armnn/BackendHelper.hpp
@@ -448,4 +448,7 @@ Optional<const BackendOptions::BackendOption> GetCapability(const std::string& b
 ARMNN_DEPRECATED_MSG_REMOVAL_DATE("This function has been deprecated in favour of GetBackendCapability", "22.05")
 bool IsCapabilitySupported(const armnn::BackendId& backend, armnn::BackendCapability capability);
 
+/// Returns the number of cached files if backend supports caching
+unsigned int GetNumberOfCacheFiles(const armnn::BackendId& backend);
+
 }
diff --git a/include/armnn/BackendOptions.hpp b/include/armnn/BackendOptions.hpp
index 33cecf6614..e5694493d3 100644
--- a/include/armnn/BackendOptions.hpp
+++ b/include/armnn/BackendOptions.hpp
@@ -314,4 +314,13 @@ inline std::string ParseStringBackendOption(const armnn::BackendOptions::Var& va
     return defaultValue;
 }
 
+inline int ParseIntBackendOption(const armnn::BackendOptions::Var& value, int defaultValue)
+{
+    if (value.IsInt())
+    {
+        return value.AsInt();
+    }
+    return defaultValue;
+}
+
 } //namespace armnn
diff --git a/include/armnn/INetwork.hpp b/include/armnn/INetwork.hpp
index 707ae00bb3..f85b29ee81 100644
--- a/include/armnn/INetwork.hpp
+++ b/include/armnn/INetwork.hpp
@@ -722,6 +722,9 @@ public:
 
     profiling::ProfilingGuid GetGuid() const;
 
+    size_t GetNumInputs() const;
+    size_t GetNumOutputs() const;
+
     // Creates a copy of the IOptimizedNetwork. The IOptimizedNetwork will not be reoptimized,
     // the provided ModelOptions will only be used when creating a LoadedNetwork. 
     IOptimizedNetwork(const IOptimizedNetwork& other, const ModelOptions& modelOptions);
diff --git a/include/armnn/backends/IBackendInternal.hpp b/include/armnn/backends/IBackendInternal.hpp
index 7500e35897..9253e11d4f 100644
--- a/include/armnn/backends/IBackendInternal.hpp
+++ b/include/armnn/backends/IBackendInternal.hpp
@@ -206,6 +206,11 @@ public:
     {
         throw armnn::Exception("GetDefaultAllocator: Function has not been implemented in backend.");
     }
+
+    /// Returns the number of files cached if backend supports caching
+    ///
+    /// \return - Returns 0 if backend does not support caching otherwise number of files cached
+    virtual unsigned int GetNumberOfCacheFiles() const { return 0; }
 };
 
 using IBackendInternalUniquePtr = std::unique_ptr<IBackendInternal>;