Files
SpacetimeDB/modules/benchmarks-cpp/src/common.h
T
Jason Larabie 52b6c66fa1 Add C++ Bindings (#3544)
# Description of Changes

This adds C++ server bindings (/crate/bindings-cpp) to allow writing C++
20 modules.

- Emscripten WASM build system integration with CMake
- Macro-based code generation (SPACETIMEDB_TABLE, SPACETIMEDB_REDUCER,
etc)
- All SpacetimeDB types supported (primitives, Timestamp, Identity,
Uuid, etc)
- Product types via SPACETIMEDB_STRUCT
- Sum types via SPACETIMEDB_ENUM
- Constraints marked with FIELD* macros

# API and ABI breaking changes

None

# Expected complexity level and risk

2 - Doesn't heavily impact any other areas but is complex macro C++
structure to support a similar developer experience, did have a small
impact on init command

# Testing

- [x] modules/module-test-cpp - heavily tested every reducer
- [x] modules/benchmarks-cpp - tested through the standalone (~6x faster
than C#, ~6x slower than Rust)
- [x] modules/sdk-test-cpp
- [x] modules/sdk-test-procedure-cpp
- [x] modules/sdk-test-view-cpp  
- [x] Wrote several test modules myself
- [x] Quickstart smoketest [Currently in progress]
- [ ] Write Blackholio C++ server module

---------

Signed-off-by: Jason Larabie <jason@clockworklabs.io>
Co-authored-by: clockwork-labs-bot <clockwork-labs-bot@users.noreply.github.com>
Co-authored-by: Ryan <r.ekhoff@clockworklabs.io>
Co-authored-by: John Detter <4099508+jdetter@users.noreply.github.com>
2026-02-07 04:26:45 +00:00

35 lines
1015 B
C++

#pragma once
#include <spacetimedb.h>
#include <cstdint>
using namespace SpacetimeDB;
// Black box function to prevent compiler optimizations during benchmarking
template<typename T>
inline void black_box(const T& value) {
// Use volatile to prevent the compiler from optimizing away the value
volatile const void* ptr = &value;
(void)ptr;
}
// Load configuration struct - defines test data sizes for benchmarks
struct Load {
uint32_t initial_load;
uint32_t small_table;
uint32_t num_players;
uint32_t big_table;
uint32_t biggest_table;
// Default constructor required by SPACETIMEDB_STRUCT
Load() = default;
Load(uint32_t initial_load_param)
: initial_load(initial_load_param)
, small_table(initial_load_param)
, num_players(initial_load_param)
, big_table(initial_load_param * 50)
, biggest_table(initial_load_param * 100)
{}
};
SPACETIMEDB_STRUCT(Load, initial_load, small_table, num_players, big_table, biggest_table)