Add customized C APIs for tf.net.

Author: SanftMonster

tensorflow/c/c_api.cc

@@ -50,10 +50,12 @@ limitations under the License.
 #include "tensorflow/core/framework/partial_tensor_shape.h"
 #include "tensorflow/core/framework/tensor.h"
 #include "tensorflow/core/framework/tensor.pb.h"  // NOLINT
+#include "tensorflow/core/framework/cpp_shape_inference.pb.h"
 #include "tensorflow/core/framework/tensor_shape.h"
 #include "tensorflow/core/framework/tensor_shape.pb.h"
 #include "tensorflow/core/framework/types.h"
 #include "tensorflow/core/framework/versions.pb.h"
+#include "tensorflow/core/framework/shape_inference.h"
 #include "tensorflow/core/graph/graph.h"
 #include "tensorflow/core/graph/node_builder.h"
 #include "tensorflow/core/graph/validate.h"
@@ -71,6 +73,8 @@ limitations under the License.
 #include "tensorflow/core/platform/types.h"
 #include "tensorflow/core/public/session.h"
 #include "tensorflow/core/public/version.h"
+#include "tensorflow/core/framework/full_type.pb.h"
+#include "tensorflow/core/framework/attr_value_util.h"
 
 // The implementation below is at the top level instead of the
 // brain namespace because we are defining 'extern "C"' functions.
@@ -2614,6 +2618,144 @@ void TF_UpdateEdge(TF_Graph* graph, TF_Output new_src, TF_Input dst,
   }
 }
 
+// TF Customized C APIs for Tensorflow.NET --------------------------
+
+void TFC_AddControlInput(TF_Graph* graph, TF_Operation* op, TF_Operation* input) {
+  mutex_lock l(graph->mu);
+  graph->graph.AddControlEdge(&input->node, &op->node);
+  tensorflow::RecordMutation(graph, *op, "adding control input");
+}
+
+void TFC_SetAttr(TF_Graph* graph, TF_Operation* op, const char* attr_name,
+                 TF_Buffer* attr_value_proto, TF_Status* status) {
+  using tensorflow::RecordMutation;
+  tensorflow::AttrValue attr_val;
+  if (!attr_val.ParseFromArray(attr_value_proto->data,
+                               attr_value_proto->length)) {
+    status->status =
+        tensorflow::errors::InvalidArgument("Invalid AttrValue proto");
+    return;
+  }
+
+  mutex_lock l(graph->mu);
+  op->node.AddAttr(attr_name, attr_val);
+  tensorflow::RecordMutation(graph, *op, "setting attribute");
+}
+
+void TFC_ClearAttr(TF_Graph* graph, TF_Operation* op, const char* attr_name,
+               TF_Status* status) {
+  mutex_lock l(graph->mu);
+  op->node.ClearAttr(attr_name);
+  tensorflow::RecordMutation(graph, *op, "clearing attribute");
+}
+
+void TFC_SetFullType(TF_Graph* graph, TF_Operation* op,
+                 const tensorflow::FullTypeDef& full_type) {
+  mutex_lock l(graph->mu);
+  *op->node.mutable_def()->mutable_experimental_type() = full_type;
+  tensorflow::RecordMutation(graph, *op, "setting fulltype");
+}
+
+void TFC_SetRequestedDevice(TF_Graph* graph, TF_Operation* op, const char* device) {
+  mutex_lock l(graph->mu);
+  op->node.set_requested_device(device);
+  tensorflow::RecordMutation(graph, *op, "setting device");
+}
+
+void TFC_UpdateEdge(TF_Graph* graph, TF_Output new_src, TF_Input dst,
+                TF_Status* status) {
+  TF_UpdateEdge(graph, new_src, dst, status);
+}
+
+void TFC_RemoveAllControlInputs(TF_Graph* graph, TF_Operation* op) {
+  mutex_lock l(graph->mu);
+  std::vector<const tensorflow::Edge*> control_edges;
+  for (const tensorflow::Edge* edge : op->node.in_edges()) {
+    if (!edge->IsControlEdge()) continue;
+    control_edges.push_back(edge);
+  }
+  for (const tensorflow::Edge* edge : control_edges) {
+    graph->graph.RemoveControlEdge(edge);
+  }
+}
+
+void TFC_SetRequireShapeInferenceFns(TF_Graph* graph, bool require) {
+  mutex_lock l(graph->mu);
+  graph->refiner.set_require_shape_inference_fns(require);
+}
+
+void TFC_ExtendSession(TF_Session* session, TF_Status* status) {
+  ExtendSessionGraphHelper(session, status);
+  session->extend_before_run = false;
+}
+
+const char* TFC_GetHandleShapeAndType(TF_Graph* graph, TF_Output output) {
+  Node* node = &output.oper->node;
+  tensorflow::CppShapeInferenceResult::HandleData handle_data;
+  handle_data.set_is_set(true);
+  {
+    mutex_lock l(graph->mu);
+    tensorflow::shape_inference::InferenceContext* ic =
+        graph->refiner.GetContext(node);
+    CHECK(ic != nullptr);
+    CHECK_LT(output.index, ic->num_outputs());
+    const auto* shapes_and_types =
+        ic->output_handle_shapes_and_types(output.index);
+    if (shapes_and_types == nullptr) return "";
+
+    for (const auto& p : *shapes_and_types) {
+      auto* out_shape_and_type = handle_data.add_shape_and_type();
+      ic->ShapeHandleToProto(p.shape, out_shape_and_type->mutable_shape());
+      out_shape_and_type->set_dtype(p.dtype);
+      *out_shape_and_type->mutable_type() = p.type;
+    }
+  }
+  string result;
+  handle_data.SerializeToString(&result);
+  return result.c_str();
+}
+
+void TFC_SetHandleShapeAndType(TF_Graph* graph, TF_Output output, const void* proto,
+                           size_t proto_len, TF_Status* status) {
+  tensorflow::CppShapeInferenceResult::HandleData handle_data;
+  if (!handle_data.ParseFromArray(proto, proto_len)) {
+    status->status = tensorflow::errors::InvalidArgument(
+        "Couldn't deserialize HandleData proto");
+    return;
+  }
+  DCHECK(handle_data.is_set());
+
+  tensorflow::mutex_lock l(graph->mu);
+  tensorflow::shape_inference::InferenceContext* ic =
+      graph->refiner.GetContext(&output.oper->node);
+
+  std::vector<tensorflow::shape_inference::ShapeAndType> shapes_and_types;
+  for (const auto& shape_and_type_proto : handle_data.shape_and_type()) {
+    tensorflow::shape_inference::ShapeHandle shape;
+    status->status =
+        ic->MakeShapeFromShapeProto(shape_and_type_proto.shape(), &shape);
+    if (TF_GetCode(status) != TF_OK) return;
+    shapes_and_types.emplace_back(shape, shape_and_type_proto.dtype(),
+                                  shape_and_type_proto.type());
+  }
+  ic->set_output_handle_shapes_and_types(output.index, shapes_and_types);
+}
+
+void TFC_AddWhileInputHack(TF_Graph* graph, TF_Output new_src, TF_Operation* dst,
+                       TF_Status* status) {
+  mutex_lock l(graph->mu);
+  status->status = graph->graph.AddWhileInputHack(&new_src.oper->node,
+                                                  new_src.index, &dst->node);
+  if (TF_GetCode(status) == TF_OK) {
+    // This modification only updates the destination node for
+    // the purposes of running this graph in a session. Thus, we don't
+    // record the source node as being modified.
+    tensorflow::RecordMutation(graph, *dst, "adding input tensor");
+  }
+}
+
+// -------------------------------------------------------------------
+
 // TF_Server functions ----------------------------------------------
 
 #if !defined(IS_MOBILE_PLATFORM) && !defined(IS_SLIM_BUILD)

tensorflow/c/c_api.h

@@ -24,6 +24,7 @@ limitations under the License.
 #include "tensorflow/c/tf_status.h"
 #include "tensorflow/c/tf_tensor.h"
 #include "tensorflow/c/tf_tstring.h"
+#include "tensorflow/core/framework/full_type.pb.h"
 
 // --------------------------------------------------------------------------
 // C API for TensorFlow.
@@ -1620,6 +1621,44 @@ TF_CAPI_EXPORT extern void TF_RegisterLogListener(
 TF_CAPI_EXPORT extern void TF_RegisterFilesystemPlugin(
     const char* plugin_filename, TF_Status* status);
 
+TF_CAPI_EXPORT extern void TFC_AddControlInput(TF_Graph* graph, TF_Operation* op, TF_Operation* input);
+
+TF_CAPI_EXPORT extern void TFC_SetAttr(TF_Graph* graph, TF_Operation* op,
+                                       const char* attr_name,
+                                       TF_Buffer* attr_value_proto,
+                                       TF_Status* status);
+
+TF_CAPI_EXPORT extern void TFC_ClearAttr(TF_Graph* graph, TF_Operation* op,
+                                         const char* attr_name,
+                                         TF_Status* status);
+
+TF_CAPI_EXPORT extern void TFC_SetFullType(TF_Graph* graph, TF_Operation* op,
+                                           const tensorflow::FullTypeDef& full_type);
+
+TF_CAPI_EXPORT extern void TFC_SetRequestedDevice(TF_Graph* graph,
+                                                  TF_Operation* op,
+                                                  const char* device);
+
+TF_CAPI_EXPORT extern void TFC_UpdateEdge(TF_Graph* graph, TF_Output new_src,
+                                          TF_Input dst, TF_Status* status);
+
+TF_CAPI_EXPORT extern void TFC_RemoveAllControlInputs(TF_Graph* graph, TF_Operation* op);
+
+TF_CAPI_EXPORT extern void TFC_SetRequireShapeInferenceFns(TF_Graph* graph, bool require);
+
+TF_CAPI_EXPORT extern void TFC_ExtendSession(TF_Session* session, TF_Status* status);
+
+TF_CAPI_EXPORT extern const char* TFC_GetHandleShapeAndType(TF_Graph* graph, TF_Output output);
+
+TF_CAPI_EXPORT extern void TFC_SetHandleShapeAndType(TF_Graph* graph,
+                                                     TF_Output output,
+                                                     const void* proto,
+                                                     size_t proto_len,
+                                                     TF_Status* status);
+
+TF_CAPI_EXPORT extern void TFC_AddWhileInputHack(TF_Graph* graph, TF_Output new_src, TF_Operation* dst,
+                       TF_Status* status);
+
 #ifdef __cplusplus
 } /* end extern "C" */
 #endif

tensorflow/c/version_script.lds

@@ -3,6 +3,7 @@ VERS_1.0 {
   global:
     *TF_*;
     *TFE_*;
+    *TFC_*;
 
   # Hide everything else.
   local:

tensorflow/core/framework/BUILD

@@ -116,6 +116,7 @@ exports_files(
     srcs = [
         "allocation_description.proto",
         "api_def.proto",
+        "cpp_shape_inference.proto",
         "attr_value.proto",
         "cost_graph.proto",
         "dataset_metadata.proto",
@@ -1402,7 +1403,7 @@ cc_library(
 # protos from the same package, so we can build the protos here and then
 # link them from core:protos_all without circular dependencies.
 
-# Generate the C++ sources for some of the protos.
+#Generate the C++ sources for some of the protos.
 tf_generate_proto_text_sources(
     name = "attr_value_proto_text",
     srcs = [
@@ -1693,6 +1694,18 @@ tf_proto_library(
     ],
 )
 
+tf_proto_library(
+    name = "cpp_shape_inference_proto",
+    srcs = ["cpp_shape_inference.proto"],
+    cc_api_version = 2,
+    make_default_target_header_only = True,
+    protodeps = [
+        ":full_type_proto",
+        ":tensor_shape_proto",
+        ":types_proto",
+    ],
+)
+
 tf_proto_library(
     name = "variable_proto",
     srcs = ["variable.proto"],
@@ -1760,7 +1773,7 @@ tf_proto_library(
 #         ":function_proto",
 #     ],
 # )
-# copybara:uncomment_end
+#copybara : uncomment_end
 
 tf_proto_library(
     name = "summary_proto",
@@ -1806,6 +1819,7 @@ tf_proto_library(
     protodeps = [
         ":allocation_description_proto",
         ":api_def_proto",
+        ":cpp_shape_inference_proto",
         ":attr_value_proto",
         ":cost_graph_proto",
         ":dataset_metadata_proto",

tensorflow/core/framework/cpp_shape_inference.proto

@@ -0,0 +1,36 @@
+syntax = "proto3";
+
+package tensorflow;
+
+import "tensorflow/core/framework/full_type.proto";
+import "tensorflow/core/framework/tensor_shape.proto";
+import "tensorflow/core/framework/types.proto";
+
+option cc_enable_arenas = true;
+option go_package = "github.com/tensorflow/tensorflow/tensorflow/go/python/framework/cpp_shape_inference_go_proto";
+
+message CppShapeInferenceResult {
+  message HandleShapeAndType {
+    reserved 3;
+
+    TensorShapeProto shape = 1;
+    DataType dtype = 2;
+    FullTypeDef type = 4;
+  }
+  message HandleData {
+    bool is_set = 1;
+
+    // Only valid if <is_set>.
+    repeated HandleShapeAndType shape_and_type = 2;
+  }
+  TensorShapeProto shape = 1;
+
+  reserved 2;  // was handle_shape
+  reserved 3;  // was handle_dtype
+  HandleData handle_data = 4;
+}
+
+message CppShapeInferenceInputsNeeded {
+  repeated int32 input_tensors_needed = 1;
+  repeated int32 input_tensors_as_shapes_needed = 2;
+}