polybar/include/utils/factory.hpp

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#pragma once
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#include <unistd.h>
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#include "common.hpp"
POLYBAR_NS
namespace factory_util {
struct null_deleter {
template <typename T>
void operator()(T*) const {}
};
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struct fd_deleter {
void operator()(int* fd) const {
if (fd != nullptr && *fd > 0) {
close(*fd);
}
}
};
template <typename T, typename... Deps>
unique_ptr<T> unique(Deps&&... deps) {
return make_unique<T>(forward<Deps>(deps)...);
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}
template <typename T, typename... Deps>
shared_ptr<T> shared(Deps&&... deps) {
return make_shared<T>(forward<Deps>(deps)...);
}
template <class T, class... Deps>
shared_ptr<T> singleton(Deps&&... deps) {
static shared_ptr<T> instance{make_shared<T>(forward<Deps>(deps)...)};
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return instance;
}
}
POLYBAR_NS_END