开始使用bintalk

简单示例

创建一个名为"example.btk"的文件，文件内容如下:

struct Address
{
    string city;
    string street;
}

struct User
{
    uint64 id;
    string name;
    Address[] addresses;
}

接下来可以使用bintalk编译这个文件，生成C++代码文件:

bintalk -g cpp example.btk

这样会生成"example.h"和"example.cpp"两个C++文件。

使用生成的文件:

#include "example.h"
#include "bintalk/MemoryReader.h"
#include "bintalk/MemoryWriter.h"

int main(int argc, char* argv[])
{
    User user1;
    user1.id = 999;
    user1.name = "user";
    Address addr;
    addr.city = "Beijing";
    addr.street = "Jie";
    user1.addresses.push_back(addr);

    bintalk::BINARY data;
    bintalk::MemoryWriter w(&data);
    user1.serialize(&w);

    User user2;
    bintalk::MemoryReader r(&data);
    user2.deserialize(&r);
    // user2 now has the same data as user1.

    return 0;
}

Service示例

创建另外一个btk文件"service.btk":

#import example.btk
service UserService
{
    createUser(User user);
    deleteUser(uint64 id);
}

编译这个文件，产生C++代码:

bintalk -g cpp service.btk

这样会生成"service.h"和"service.cpp"文件。

使用生成的文件:

#include "service.h"
...
class Stub : public UserServiceStub
{
public:
    Stub(bintalk::BinaryWriter* w):w_(w){}
    virtual bintalk::BinaryWriter* methodBegin() { return w_; }
    virtual void methodEnd() {}
    bintalk::BinaryWriter* w_;
};
class Proxy : public UserServiceProxy
{
public:
    virtual bool createUser(User& user) { return true; }
    virtual bool deleteUser(bintalk::UINT64 id) { return true; }
};
int main(int argc, char* argv[])
{
    User user1;
    user1.id = 999;
    user1.name = "user";
    Address addr;
    addr.city = "Beijing";
    addr.street = "Jie";
    user1.addresses.push_back(addr);

    bintalk::BINARY data;
    bintalk::MemoryWriter w(&data);

    Stub stub(&w);
    stub.createUser(user1);

    bintalk::MemoryReader r(&data);
    Proxy proxy;
    // Proxy::createUser is invoked here.
    UserServiceDispatcher::dispatch(&r, &proxy);
    return 0;
}