Merge pull request #66 from hit9/cpp-compile-example

Add a simple C++ (compile with C bp files) example

Author: hit9

.gitignore

@@ -13,3 +13,5 @@ dist
 spam
 .DS_Store
 compile_flags.txt
+test2
+*.o

example/CPP-optimization-mode/.gitignore

@@ -0,0 +1,3 @@
+example
+bench
+*.o

example/CPP-optimization-mode/Makefile

@@ -0,0 +1,24 @@
+BITPROTO_LIB_PATH=../../lib/c
+
+default: run
+
+C_SOURCES = $(wildcard *.c)
+CPP_SOURCES = main.cpp
+OBJECTS = $(CPP_SOURCES:.cpp=.o) $(C_SOURCES:.c=.o)
+
+%.o: %.cpp
+	$(CXX) -c $< -o $@
+
+%.o: %.c
+	$(CC) -c $< -o $@
+
+build: $(OBJECTS)
+	$(CXX) $(OBJECTS) -o example
+
+run: build
+	./example
+
+clean:
+	rm example_bp.h example_bp.c example *.o || true
+
+.PHONY: build run clean

example/CPP-optimization-mode/example_bp.c

@@ -0,0 +1,152 @@
+// Code generated by bitproto. DO NOT EDIT.
+
+// Proto drone describes the structure of the drone.
+
+#ifndef __BITPROTO__DRONE_H__
+#define __BITPROTO__DRONE_H__ 1
+
+#include <inttypes.h>
+#include <stddef.h>
+#include <stdint.h>
+#ifndef __cplusplus
+#include <stdbool.h>
+#endif
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+#define BITPROTO_OPTIMIZATION_MODE 1
+
+typedef int32_t Timestamp; // 32bit
+
+typedef int32_t TernaryInt32[3]; // 96bit
+
+typedef uint8_t DroneStatus; // 3bit
+
+#define DRONE_STATUS_UNKNOWN 0
+#define DRONE_STATUS_STANDBY 1
+#define DRONE_STATUS_RISING 2
+#define DRONE_STATUS_LANDING 3
+#define DRONE_STATUS_FLYING 4
+
+typedef uint8_t PropellerStatus; // 2bit
+
+#define PROPELLER_STATUS_UNKNOWN 0
+#define PROPELLER_STATUS_IDLE 1
+#define PROPELLER_STATUS_ROTATING 2
+
+typedef uint8_t RotatingDirection; // 2bit
+
+#define ROTATING_DIRECTION_UNKNOWN 0
+#define ROTATING_DIRECTION_CLOCK_WISE 1
+#define ROTATING_DIRECTION_ANTI_CLOCK_WISE 2
+
+typedef uint8_t PowerStatus; // 2bit
+
+#define POWER_STATUS_UNKNOWN 0
+#define POWER_STATUS_OFF 1
+#define POWER_STATUS_ON 2
+
+typedef uint8_t LandingGearStatus; // 2bit
+
+#define LANDING_GEAR_STATUS_UNKNOWN 0
+#define LANDING_GEAR_STATUS_UNFOLDED 1
+#define LANDING_GEAR_STATUS_FOLDED 2
+
+// Number of bytes to encode struct Propeller
+#define BYTES_LENGTH_PROPELLER 2
+
+struct Propeller {
+    uint8_t id; // 8bit
+    PropellerStatus status; // 2bit
+    RotatingDirection direction; // 2bit
+};
+
+// Number of bytes to encode struct Power
+#define BYTES_LENGTH_POWER 2
+
+struct Power {
+    uint8_t battery; // 8bit
+    PowerStatus status; // 2bit
+    bool is_charging; // 1bit
+};
+
+// Number of bytes to encode struct Network
+#define BYTES_LENGTH_NETWORK 5
+
+struct Network {
+    // Degree of signal, between 1~10.
+    uint8_t signal; // 4bit
+    // The timestamp of the last time received heartbeat packet.
+    Timestamp heartbeat_at; // 32bit
+};
+
+// Number of bytes to encode struct LandingGear
+#define BYTES_LENGTH_LANDING_GEAR 1
+
+struct LandingGear {
+    LandingGearStatus status; // 2bit
+};
+
+// Number of bytes to encode struct Position
+#define BYTES_LENGTH_POSITION 12
+
+struct Position {
+    uint32_t latitude; // 32bit
+    uint32_t longitude; // 32bit
+    uint32_t altitude; // 32bit
+};
+
+// Number of bytes to encode struct Pose
+#define BYTES_LENGTH_POSE 12
+
+// Pose in flight. https://en.wikipedia.org/wiki/Aircraft_principal_axes
+struct Pose {
+    int32_t yaw; // 32bit
+    int32_t pitch; // 32bit
+    int32_t roll; // 32bit
+};
+
+// Number of bytes to encode struct Flight
+#define BYTES_LENGTH_FLIGHT 36
+
+struct Flight {
+    struct Pose pose; // 96bit
+    // Velocity at X, Y, Z axis.
+    TernaryInt32 velocity; // 96bit
+    // Acceleration at X, Y, Z axis.
+    TernaryInt32 acceleration; // 96bit
+};
+
+// Number of bytes to encode struct PressureSensor
+#define BYTES_LENGTH_PRESSURE_SENSOR 6
+
+struct PressureSensor {
+    int32_t pressures[2]; // 48bit
+};
+
+// Number of bytes to encode struct Drone
+#define BYTES_LENGTH_DRONE 67
+
+struct Drone {
+    DroneStatus status; // 3bit
+    struct Position position; // 96bit
+    struct Flight flight; // 288bit
+    struct Propeller propellers[4]; // 48bit
+    struct Power power; // 11bit
+    struct Network network; // 36bit
+    struct LandingGear landing_gear; // 2bit
+    struct PressureSensor pressure_sensor; // 48bit
+};
+
+// Encode struct Drone to given buffer s.
+int EncodeDrone(struct Drone *m, unsigned char *s);
+// Decode struct Drone from given buffer s.
+int DecodeDrone(struct Drone *m, unsigned char *s);
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif

example/CPP-optimization-mode/example_bp.h

@@ -0,0 +1,31 @@
+#include <cassert>
+#include <iostream>
+
+#include "example_bp.h"
+
+int main(void) {
+  // Encode.
+  struct Drone drone;
+
+  drone.status = DRONE_STATUS_RISING, drone.position.longitude = 2000;
+  drone.position.latitude = 2000;
+  drone.position.altitude = 1080;
+  drone.flight.acceleration[0] = -1001;
+  drone.power.is_charging = false;
+  drone.propellers[0].direction = ROTATING_DIRECTION_CLOCK_WISE;
+  drone.pressure_sensor.pressures[0] = -11;
+
+  unsigned char s[BYTES_LENGTH_DRONE] = {0};
+
+  EncodeDrone(&drone, s);
+
+  // Decode.
+  struct Drone drone_new = {0};
+  DecodeDrone(&drone_new, s);
+
+  assert(drone_new.status == drone.status);
+
+  // Json formatting is not supported in optimization mode.
+
+  return 0;
+}

example/CPP-optimization-mode/main.cpp

@@ -0,0 +1,3 @@
+example
+bench
+*.o

example/CPP/.gitignore

@@ -0,0 +1,27 @@
+BITPROTO_LIB_PATH=../../lib/c
+
+default: run
+
+CFLAGS = -I$(BITPROTO_LIB_PATH)
+CXXFLAGS = -I$(BITPROTO_LIB_PATH)
+
+C_SOURCES = $(wildcard *.c) $(BITPROTO_LIB_PATH)/bitproto.c
+CPP_SOURCES = main.cpp
+OBJECTS = $(CPP_SOURCES:.cpp=.o) $(C_SOURCES:.c=.o)
+
+%.o: %.cpp
+	$(CXX) $(CXXFLAGS) -c $< -o $@
+
+%.o: %.c
+	$(CC) $(CFLAGS) -c $< -o $@
+
+build: $(OBJECTS)
+	$(CXX) $(OBJECTS) $(CXXFLAGS) -o example
+
+run: build
+	./example
+
+clean:
+	rm example_bp.h example_bp.c example *.o || true
+
+.PHONY: build run clean