feedc0de/ArduinoJson
1
0
Fork 0
forked from bblanchon/ArduinoJson
Code Pull Requests Activity

JsonDocument: use the copy-and-swap idiom

Browse Source
This commit is contained in:
Benoit Blanchon
2023-07-24 10:13:17 +02:00
parent 9d2d257851
commit 228c4cf9fa
8 changed files with 156 additions and 41 deletions
Download Patch File Download Diff File Expand all files Collapse all files

95
extras/tests/ResourceManager/swap.cpp Normal file
View File

@ -0,0 +1,95 @@
// ArduinoJson - https://arduinojson.org
// Copyright © 2014-2023, Benoit BLANCHON
// MIT License
#include <ArduinoJson/Memory/Alignment.hpp>
#include <ArduinoJson/Memory/ResourceManager.hpp>
#include <ArduinoJson/Memory/VariantPoolImpl.hpp>
#include <catch.hpp>
#include "Allocators.hpp"
using namespace ArduinoJson::detail;
static void fullPreallocatedPools(ResourceManager& resources) {
for (int i = 0;
i < ARDUINOJSON_INITIAL_POOL_COUNT * ARDUINOJSON_POOL_CAPACITY; i++)
resources.allocSlot();
}
TEST_CASE("ResourceManager::swap()") {
SECTION("Both using preallocated pool list") {
SpyingAllocator allocator;
ResourceManager a(&allocator);
ResourceManager b(&allocator);
auto a1 = a.allocSlot();
auto b1 = b.allocSlot();
swap(a, b);
REQUIRE(a1->data() == b.getSlot(a1.id())->data());
REQUIRE(b1->data() == a.getSlot(b1.id())->data());
REQUIRE(allocator.log() == AllocatorLog()
<< AllocatorLog::Allocate(sizeofPool()) * 2);
}
SECTION("Only left using preallocated pool list") {
SpyingAllocator allocator;
ResourceManager a(&allocator);
ResourceManager b(&allocator);
fullPreallocatedPools(b);
auto a1 = a.allocSlot();
auto b1 = b.allocSlot();
swap(a, b);
REQUIRE(a1->data() == b.getSlot(a1.id())->data());
REQUIRE(b1->data() == a.getSlot(b1.id())->data());
REQUIRE(allocator.log() == AllocatorLog()
<< AllocatorLog::Allocate(sizeofPool()) *
(ARDUINOJSON_INITIAL_POOL_COUNT + 1)
<< AllocatorLog::Allocate(sizeofPoolList(
ARDUINOJSON_INITIAL_POOL_COUNT * 2))
<< AllocatorLog::Allocate(sizeofPool()));
}
SECTION("Only right using preallocated pool list") {
SpyingAllocator allocator;
ResourceManager a(&allocator);
fullPreallocatedPools(a);
ResourceManager b(&allocator);
auto a1 = a.allocSlot();
auto b1 = b.allocSlot();
swap(a, b);
REQUIRE(a1->data() == b.getSlot(a1.id())->data());
REQUIRE(b1->data() == a.getSlot(b1.id())->data());
REQUIRE(allocator.log() == AllocatorLog()
<< AllocatorLog::Allocate(sizeofPool()) *
ARDUINOJSON_INITIAL_POOL_COUNT
<< AllocatorLog::Allocate(sizeofPoolList(
ARDUINOJSON_INITIAL_POOL_COUNT * 2))
<< AllocatorLog::Allocate(sizeofPool()) * 2);
}
SECTION("None is using preallocated pool list") {
SpyingAllocator allocator;
ResourceManager a(&allocator);
fullPreallocatedPools(a);
ResourceManager b(&allocator);
fullPreallocatedPools(b);
auto a1 = a.allocSlot();
auto b1 = b.allocSlot();
swap(a, b);
REQUIRE(a1->data() == b.getSlot(a1.id())->data());
REQUIRE(b1->data() == a.getSlot(b1.id())->data());
}
}