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Compile and update the examples in the README

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This commit is contained in:
Gudmundur Adalsteinsson 2020-10-10 13:39:42 +00:00
parent 7a6c904f94
commit 379793cbab
4 changed files with 70 additions and 8 deletions
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16
README.md
View File

@ -53,7 +53,7 @@ int main()
sock.send(zmq::str_buffer("Hello, world"), zmq::send_flags::dontwait); sock.send(zmq::str_buffer("Hello, world"), zmq::send_flags::dontwait);
} }
``` ```
This a more complex example where we send and receive multi-part messages. This a more complex example where we send and receive multi-part messages over TCP with a wildcard port.
```c++ ```c++
#include <iostream> #include <iostream>
#include <zmq_addon.hpp> #include <zmq_addon.hpp>
@ -61,10 +61,14 @@ This a more complex example where we send and receive multi-part messages.
int main() int main()
{ {
zmq::context_t ctx; zmq::context_t ctx;
zmq::socket_t sock1(ctx, zmq::socket_type::pair); zmq::socket_t sock1(ctx, zmq::socket_type::push);
zmq::socket_t sock2(ctx, zmq::socket_type::pair); zmq::socket_t sock2(ctx, zmq::socket_type::pull);
sock1.bind("inproc://test"); sock1.bind("tcp://127.0.0.1:*");
sock2.connect("inproc://test"); const std::string last_endpoint =
sock1.get(zmq::sockopt::last_endpoint);
std::cout << "Connecting to "
<< last_endpoint << std::endl;
sock2.connect(last_endpoint);
std::array<zmq::const_buffer, 2> send_msgs = { std::array<zmq::const_buffer, 2> send_msgs = {
zmq::str_buffer("foo"), zmq::str_buffer("foo"),
@ -84,6 +88,8 @@ int main()
} }
``` ```
See the `examples` directory for more examples. When the project is compiled with tests enabled, each example gets compiled to an executable.
Compatibility Guidelines Compatibility Guidelines
======================== ========================

22
examples/CMakeLists.txt
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@ -15,9 +15,25 @@ add_executable(
pubsub_multithread_inproc pubsub_multithread_inproc
pubsub_multithread_inproc.cpp pubsub_multithread_inproc.cpp
) )
target_link_libraries( target_link_libraries(
pubsub_multithread_inproc pubsub_multithread_inproc
PRIVATE cppzmq PRIVATE cppzmq ${CMAKE_THREAD_LIBS_INIT}
PRIVATE ${CMAKE_THREAD_LIBS_INIT} )
add_executable(
hello_world
hello_world.cpp
)
target_link_libraries(
hello_world
PRIVATE cppzmq ${CMAKE_THREAD_LIBS_INIT}
)
add_executable(
multipart_messages
multipart_messages.cpp
)
target_link_libraries(
multipart_messages
PRIVATE cppzmq ${CMAKE_THREAD_LIBS_INIT}
) )

9
examples/hello_world.cpp Normal file
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@ -0,0 +1,9 @@
#include <zmq.hpp>
int main()
{
zmq::context_t ctx;
zmq::socket_t sock(ctx, zmq::socket_type::push);
sock.bind("inproc://test");
sock.send(zmq::str_buffer("Hello, world"), zmq::send_flags::dontwait);
}

31
examples/multipart_messages.cpp Normal file
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@ -0,0 +1,31 @@
#include <iostream>
#include <zmq_addon.hpp>
int main()
{
zmq::context_t ctx;
zmq::socket_t sock1(ctx, zmq::socket_type::push);
zmq::socket_t sock2(ctx, zmq::socket_type::pull);
sock1.bind("tcp://127.0.0.1:*");
const std::string last_endpoint =
sock1.get(zmq::sockopt::last_endpoint);
std::cout << "Connecting to "
<< last_endpoint << std::endl;
sock2.connect(last_endpoint);
std::array<zmq::const_buffer, 2> send_msgs = {
zmq::str_buffer("foo"),
zmq::str_buffer("bar!")
};
if (!zmq::send_multipart(sock1, send_msgs))
return 1;
std::vector<zmq::message_t> recv_msgs;
const auto ret = zmq::recv_multipart(
sock2, std::back_inserter(recv_msgs));
if (!ret)
return 1;
std::cout << "Got " << *ret
<< " messages" << std::endl;
return 0;
}