shared_lib: Tests for protozero serialization

These cover most of the protozero macros.

The sample protos in this test have been generated from the schemas at
`external/perfetto/src/protozero/test/example_proto/`.

A future commit contains the script that generates the sample headers
from the schema.

Bug: 237053538
Change-Id: Iaae9dabd14c9989460a2025d3042deee37438f4e

Android.bp

@@ -2221,6 +2221,7 @@ cc_test {
         ":perfetto_src_shared_lib_intern_map",
         ":perfetto_src_shared_lib_shared_lib",
         ":perfetto_src_shared_lib_test_integrationtests",
+        ":perfetto_src_shared_lib_test_protos_protos",
         ":perfetto_src_shared_lib_test_utils",
         ":perfetto_src_trace_processor_containers_containers",
         ":perfetto_src_trace_processor_db_db",
@@ -9726,6 +9727,11 @@ filegroup {
     ],
 }
 
+// GN: //src/shared_lib/test/protos:protos
+filegroup {
+    name: "perfetto_src_shared_lib_test_protos_protos",
+}
+
 // GN: //src/shared_lib/test:utils
 filegroup {
     name: "perfetto_src_shared_lib_test_utils",

include/perfetto/public/abi/heap_buffer.h

@@ -25,7 +25,7 @@ extern "C" {
 
 // A PerfettoHeapBuffer can be used to serialize protobuf data using the
 // PerfettoStreamWriter interface. Stores data on heap allocated buffers, which
-// can be read back with PerfettoHeapBufferCopyContent().
+// can be read back with PerfettoHeapBufferCopyInto().
 
 struct PerfettoHeapBuffer;
 

src/shared_lib/test/BUILD.gn

@@ -48,6 +48,7 @@ if (enable_perfetto_integration_tests) {
   source_set("integrationtests") {
     testonly = true
     deps = [
+      "protos",
       ":utils",
       "..:shared_lib",
       "../../../gn:default_deps",

src/shared_lib/test/protos/BUILD.gn

@@ -0,0 +1,23 @@
+# Copyright (C) 2023 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+source_set("protos") {
+  testonly = true
+  sources = [
+    "library.pzc.h",
+    "library_internals/galaxies.pzc.h",
+    "test_messages.pzc.h",
+    "upper_import.pzc.h",
+  ]
+}

src/shared_lib/test/protos/library.pzc.h

@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SRC_SHARED_LIB_TEST_PROTOS_LIBRARY_PZC_H_
+#define SRC_SHARED_LIB_TEST_PROTOS_LIBRARY_PZC_H_
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "perfetto/public/pb_macros.h"
+#include "src/shared_lib/test/protos/library_internals/galaxies.pzc.h"
+
+PERFETTO_PB_ENUM_IN_MSG(protozero_test_protos_TransgalacticMessage,
+                        MessageType){
+    PERFETTO_PB_ENUM_IN_MSG_ENTRY(protozero_test_protos_TransgalacticMessage,
+                                  REGULAR) = 0,
+    PERFETTO_PB_ENUM_IN_MSG_ENTRY(protozero_test_protos_TransgalacticMessage,
+                                  EXPRESS) = 1,
+};
+
+PERFETTO_PB_MSG(protozero_test_protos_TransgalacticMessage);
+PERFETTO_PB_FIELD(protozero_test_protos_TransgalacticMessage,
+                  VARINT,
+                  enum protozero_test_protos_Galaxy,
+                  origin_galaxy,
+                  1);
+PERFETTO_PB_FIELD(protozero_test_protos_TransgalacticMessage,
+                  STRING,
+                  const char*,
+                  origin_planet,
+                  2);
+PERFETTO_PB_FIELD(protozero_test_protos_TransgalacticMessage,
+                  VARINT,
+                  enum protozero_test_protos_Galaxy,
+                  destination_galaxy,
+                  3);
+PERFETTO_PB_FIELD(protozero_test_protos_TransgalacticMessage,
+                  STRING,
+                  const char*,
+                  destination_planet,
+                  4);
+PERFETTO_PB_FIELD(protozero_test_protos_TransgalacticMessage,
+                  STRING,
+                  const char*,
+                  proto_message,
+                  5);
+
+#endif  // SRC_SHARED_LIB_TEST_PROTOS_LIBRARY_PZC_H_

src/shared_lib/test/protos/library_internals/galaxies.pzc.h

@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SRC_SHARED_LIB_TEST_PROTOS_LIBRARY_INTERNALS_GALAXIES_PZC_H_
+#define SRC_SHARED_LIB_TEST_PROTOS_LIBRARY_INTERNALS_GALAXIES_PZC_H_
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "perfetto/public/pb_macros.h"
+#include "src/shared_lib/test/protos/upper_import.pzc.h"
+
+PERFETTO_PB_ENUM(protozero_test_protos_Galaxy){
+    PERFETTO_PB_ENUM_ENTRY(protozero_test_protos_MILKY_WAY) = 1,
+    PERFETTO_PB_ENUM_ENTRY(protozero_test_protos_ANDROMEDA) = 2,
+    PERFETTO_PB_ENUM_ENTRY(protozero_test_protos_SUNFLOWER) = 3,
+};
+
+#endif  // SRC_SHARED_LIB_TEST_PROTOS_LIBRARY_INTERNALS_GALAXIES_PZC_H_