libraries/libpcscxx
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template for engine registry; refs #11

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This commit is contained in:
Marc Wäckerlin
2011-05-03 11:57:40 +00:00
parent 95efe61822
commit 1db5a9ab69
2 changed files with 13 additions and 7 deletions
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2
doc/examples/openssl-engine-demo.cxx
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@@ -25,7 +25,7 @@ class TestEngine: virtual public openssl::Engine {
int main(int, char**) {
{
openssl::RegisterEngine testEngine(new TestEngine);
openssl::RegisterEngine<> testEngine(new TestEngine);
for (ENGINE* e(ENGINE_get_first()); e; e = ENGINE_get_next(e)) {
std::cout<<"Found Engine: "<<ENGINE_get_id(e)<<std::endl;

18
src/openssl-engine.hxx
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@@ -279,25 +279,31 @@ namespace openssl {
//! Scoped Engine Registry
/*! Engine will be deregistered and freed at destruction */
class RegisterEngine {
template <class ENGINE=Engine> class RegisterEngine {
public:
RegisterEngine(Engine* e): _e(e) {
RegisterEngine(ENGINE* e = 0): _e(e) {
if (_e) EngineMapper::add(_e);
}
~RegisterEngine() {
if (_e) EngineMapper::remove(_e);
}
operator Engine*() {
RegisterEngine& operator=(ENGINE* e) {
if (_e) EngineMapper::remove(_e);
_e = e;
if (_e) EngineMapper::add(_e);
return *this;
}
operator ENGINE*() {
return _e;
}
Engine* operator->() {
ENGINE* operator->() {
return _e;
}
Engine& operator*() {
ENGINE& operator*() {
return *_e;
}
private:
Engine* _e;
ENGINE* _e;
};
//@}