[Geany-devel] Geany Newsletter Issue #5

[Lex Trotman]

Hi Thomas,

Humm, dunno why it didn't work when Matthew and I tried it before, but:

$ cat test.cpp
 #include <geanyplugin.h>
 #include <iostream>


extern "C"
{
  PLUGIN_VERSION_CHECK(211)

  PLUGIN_SET_INFO("Test C++","Test C++", "etc", "etc");

  void plugin_init(GeanyData *){}
  void plugin_cleanup(void){}

}

class Test
{
public:
   Test() { std::cout << "Hello from Test" << std::endl; }
   ~Test() { std::cout << "Bye from Test" << std::endl; }
};

static Test test;

$ g++ -c test.cpp -fPIC `pkg-config --cflags ../lib/pkgconfig/geany.pc geany`
$ g++ test.o -o test.so -shared `pkg-config --libs
../lib/pkgconfig/geany.pc geany`
$ cp test.so ../lib/geany
$ geany -c ../config

does call the constructor/destructor for test.  Maybe we got the
mystery incantations wrong :)  It also works using clang++ to compile
test :)

Note, if the plugin isn't loaded the constructor is run when plugin
manager is opened and, if you havn't selected the plugin, the
destructor is run when plugin manager is closed.

When you select the plugin the destructor is run and then the
constructor is run again but this time the destructor is not run when
plugin manager is closed.

So it probably shouldn't do anything in the constructors/destructors
that is slow or that leaves a trace.

[...]
>
> FWIW, does anyone know why I needed to link libstdc++ explicitely in my
> testing?

As shown above Matthew is right, just use g++.

@Frank, sorry, wasn't meaning to blame you ;) just my failing .. ummm
... oh yeah, memory.

Cheers
Lex