Update iOS InputFile.

PiperOrigin-RevId: 416188311

cpp/platform/impl/ios/Source/Internal/GNCCore.h

@@ -18,7 +18,6 @@
 
 #include "core/core.h"
 #include "core/internal/service_controller_router.h"
-#include "platform/base/payload_id.h"
 
 NS_ASSUME_NONNULL_BEGIN
 
@@ -29,24 +28,6 @@ NS_ASSUME_NONNULL_BEGIN
   std::unique_ptr<::location::nearby::connections::ServiceControllerRouter>
       _service_controller_router;
 }
-
-/**
- * These functions are the utilities to manipulate the InputFile in ImplementationPlatform for
- * sending File payload.
- *
- * Inserts the URL to the map, keyed by payloadID. The element will not be inserted if there
- * already is an element with the key in the map.
- */
-- (void)insertURLToMapWithPayloadID:(::location::nearby::PayloadId)payloadId urlToSend:(NSURL *)url;
-
-/**
- * Returns the URL with the payloadID and removes the entry from the map. Returns nil if
- * payloadID is not found.
- */
-- (nullable NSURL *)extractURLWithPayloadID:(::location::nearby::PayloadId)payloadId;
-
-- (void)clearSendingURLMaps;
-
 @end
 
 /** This function returns the Core singleton, wrapped in an Obj-C object for lifetime management. */

cpp/platform/impl/ios/Source/Internal/GNCCore.mm

@@ -16,22 +16,15 @@
 
 #include <utility>
 
-#include "third_party/absl/container/flat_hash_map.h"
-#include "third_party/absl/container/internal/common.h"
 #include "third_party/nearby/cpp/core/core.h"
 #include "third_party/nearby/cpp/core/internal/service_controller_router.h"
-#include "third_party/nearby/cpp/platform/base/payload_id.h"
 #import "third_party/objective_c/google_toolbox_for_mac/Foundation/GTMLogger.h"
 
 using ::location::nearby::connections::Core;
 using ::location::nearby::PayloadId;
 using ::location::nearby::connections::ServiceControllerRouter;
 
-@implementation GNCCore {
-  // A map to store the NSURL object with PayloadId for sendFilePayload in GNCConnection.
-  // This is the place to store the NSURL for InputFile creation in ImplementationPlatform.
-  absl::flat_hash_map<PayloadId, NSURL *> _sending_urls;
-}
+@implementation GNCCore
 
 - (instancetype)init {
   GTMLoggerInfo(@"GNCCore created");
@@ -49,24 +42,6 @@ using ::location::nearby::connections::ServiceControllerRouter;
   GTMLoggerInfo(@"GNCCore deallocated");
 }
 
-- (void)insertURLToMapWithPayloadID:(PayloadId)payloadId urlToSend:(NSURL *)url {
-  _sending_urls.emplace(payloadId, url);
-}
-
-- (nullable NSURL *)extractURLWithPayloadID:(PayloadId)payloadId {
-  NSURL *url;
-  auto it = _sending_urls.find(payloadId);
-  if (it != _sending_urls.end()) {
-    auto pair = _sending_urls.extract(it);
-    url = pair.mapped();
-  }
-  return url;
-}
-
-- (void)clearSendingURLMaps {
-  _sending_urls.clear();
-}
-
 @end
 
 GNCCore *GNCGetCore() {

cpp/platform/impl/ios/Source/Internal/GNCCoreConnection.mm

@@ -159,11 +159,7 @@ class GNCInputStreamFromNSStream : public InputStream {
     fileSize = fileSizeValue.longValue;
   }
   PayloadId payloadId = Payload::GenerateId();
-  // Add the pair of payloadId and fileURL to the map in the GNCCore.
-  [_core insertURLToMapWithPayloadID:payloadId urlToSend:fileURL];
-
-  // TODO(edwinwu): Need someone familiar with iOS to fix this
-  std::string path("FIXME, WE NEED A PATH HERE");
+  std::string path = CppStringFromObjCString([fileURL absoluteString]);
   Payload corePayload(payloadId, InputFile(path.c_str()));
   progress.totalUnitCount = fileSize;
   return [self sendPayload:std::move(corePayload)

cpp/platform/impl/ios/Source/Platform/BUILD

@@ -17,6 +17,16 @@ package(default_visibility = ["//platform/impl/ios:__subpackages__"])
 
 objc_library(
     name = "Platform",
+    srcs = [
+        "platform.mm",
+    ],
+    deps = [
+        ":Platform_objc",
+    ],
+)
+
+objc_library(
+    name = "Platform_objc",
     srcs = [
         "crypto.mm",
         "input_file.mm",

cpp/platform/impl/ios/Source/Platform/platform.mm

@@ -17,8 +17,6 @@
 #include <string>
 
 #include "third_party/nearby/cpp/platform/api/mutex.h"
-#include "third_party/nearby/cpp/platform/base/payload_id.h"
-#import "third_party/nearby/cpp/platform/impl/ios/Source/Internal/GNCCore.h"
 #include "third_party/nearby/cpp/platform/impl/ios/Source/Platform/atomic_boolean.h"
 #include "third_party/nearby/cpp/platform/impl/ios/Source/Platform/atomic_uint32.h"
 #include "third_party/nearby/cpp/platform/impl/ios/Source/Platform/condition_variable.h"
@@ -39,8 +37,15 @@ namespace api {
 
 std::unique_ptr<std::string> ImplementationPlatform::GetDownloadPath(
     std::unique_ptr<std::string> path) {
-  // TODO(jfcarroll): Fixme, we need to modulate the path the the system download path
-  return path;
+  // This is to get a file path, e.g. /tmp/[path], for the storage of payload file.
+  // NOTE: Per
+  // https://developer.apple.com/library/content/documentation/FileManagement/Conceptual/FileSystemProgrammingGuide/FileSystemOverview/FileSystemOverview.html
+  // Files saved in the /tmp directory will be deleted by the system. Callers should be responsible
+  // for copying the files to the permanent storage.
+  NSString* pathString = ObjCStringFromCppString(*path);
+  std::string wholePathString =
+      CppStringFromObjCString([NSTemporaryDirectory() stringByAppendingPathComponent:pathString]);
+  return std::make_unique<std::string>(wholePathString);
 }
 
 // Atomics:
@@ -72,20 +77,11 @@ std::unique_ptr<ConditionVariable> ImplementationPlatform::CreateConditionVariab
 }
 
 std::unique_ptr<InputFile> ImplementationPlatform::CreateInputFile(const char* file_path) {
-// Extract the NSURL object with payload_id from |GNCCore| which stores the maps. If the retrieved
-// NSURL object is not nil, we create InputFile by ios::InputFile. The difference is
-// that ios::InputFile implements to read bytes from local real file for sending.
-// TODO(jfcarroll): Need someone familiar with iOS to fix this
-#if 0
-  GNCCore* core = GNCGetCore();
-  NSURL* url = [core extractURLWithPayloadID:payload_id];
-  if (url != nil) {
-    return absl::make_unique<ios::InputFile>(url);
-  } else {
-    return absl::make_unique<shared::InputFile>(GetDownloadPath(payload_id), total_size);
-  }
-#endif
-  return nullptr;
+  NSURL* url = [NSURL fileURLWithFileSystemRepresentation:file_path
+                                              isDirectory:NO
+                                            relativeToURL:nil];
+
+  return absl::make_unique<ios::InputFile>(url);
 }
 
 std::unique_ptr<OutputFile> ImplementationPlatform::CreateOutputFile(const char* file_path) {