Fix allocation arguments copy (#748)

* Change allocation method for copied parameter files * Add bad allocator test Signed-off-by: Jorge Perez <jjperez@ekumenlabs.com>
ros2 · Oct 28, 2020 · a19e816 · a19e816
1 parent d03ebf6
commit a19e816
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Showing 2 changed files with 36 additions and 2 deletions.
diff --git a/rcl/src/rcl/arguments.c b/rcl/src/rcl/arguments.c
@@ -862,8 +862,8 @@ rcl_arguments_copy(
 
   // Copy parameter files
   if (args->impl->num_param_files_args) {
-    args_out->impl->parameter_files = allocator.allocate(
-      sizeof(char *) * args->impl->num_param_files_args, allocator.state);
+    args_out->impl->parameter_files = allocator.zero_allocate(
+      args->impl->num_param_files_args, sizeof(char *), allocator.state);
     if (NULL == args_out->impl->parameter_files) {
       if (RCL_RET_OK != rcl_arguments_fini(args_out)) {
         RCL_SET_ERROR_MSG("Error while finalizing arguments due to another error");

diff --git a/rcl/test/rcl/test_arguments.cpp b/rcl/test/rcl/test_arguments.cpp
@@ -1065,3 +1065,37 @@ TEST_F(CLASSNAME(TestArgumentsFixture, RMW_IMPLEMENTATION), test_bad_alloc_get_p
   ret = rcl_arguments_get_param_files(&parsed_args, bomb_alloc, &parameter_files);
   EXPECT_EQ(RCL_RET_BAD_ALLOC, ret) << rcl_get_error_string().str;
 }
+
+TEST_F(CLASSNAME(TestArgumentsFixture, RMW_IMPLEMENTATION), test_bad_allocs_copy) {
+  const std::string parameters_filepath1 = (test_path / "test_parameters.1.yaml").string();
+  const std::string parameters_filepath2 = (test_path / "test_parameters.2.yaml").string();
+  const char * const argv[] = {
+    "process_name", "--ros-args", "--params-file", parameters_filepath1.c_str(),
+    "-r", "__ns:=/namespace", "random:=arg", "--params-file", parameters_filepath2.c_str(),
+    "-r", "/foo/bar:=/fiz/buz", "--remap", "foo:=/baz",
+    "-e", "/foo", "--", "foo"
+  };
+  const int argc = sizeof(argv) / sizeof(const char *);
+
+  rcl_allocator_t alloc = rcl_get_default_allocator();
+  rcl_arguments_t parsed_args = rcl_get_zero_initialized_arguments();
+
+  rcl_ret_t ret = rcl_parse_arguments(argc, argv, alloc, &parsed_args);
+  ASSERT_EQ(RCL_RET_OK, ret) << rcl_get_error_string().str;
+  OSRF_TESTING_TOOLS_CPP_SCOPE_EXIT(
+  {
+    EXPECT_EQ(RCL_RET_OK, rcl_arguments_fini(&parsed_args));
+  });
+
+  rcl_arguments_t copied_args = rcl_get_zero_initialized_arguments();
+  rcl_allocator_t bomb_alloc = get_time_bombed_allocator();
+  rcl_allocator_t saved_alloc = parsed_args.impl->allocator;
+  parsed_args.impl->allocator = bomb_alloc;
+  for (int i = 0; i < 8; i++) {
+    set_time_bombed_allocator_count(bomb_alloc, i);
+    ret = rcl_arguments_copy(&parsed_args, &copied_args);
+    EXPECT_EQ(RCL_RET_BAD_ALLOC, ret) << rcl_get_error_string().str;
+    rcl_reset_error();
+  }
+  parsed_args.impl->allocator = saved_alloc;
+}