diff options
Diffstat (limited to 'louloulibs/network/resolver.hpp')
-rw-r--r-- | louloulibs/network/resolver.hpp | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/louloulibs/network/resolver.hpp b/louloulibs/network/resolver.hpp deleted file mode 100644 index 29e6f3a..0000000 --- a/louloulibs/network/resolver.hpp +++ /dev/null @@ -1,129 +0,0 @@ -#pragma once - - -#include "louloulibs.h" - -#include <functional> -#include <memory> -#include <string> - -#include <sys/types.h> -#include <sys/socket.h> -#include <netdb.h> - -class AddrinfoDeleter -{ - public: - void operator()(struct addrinfo* addr) - { -#ifdef CARES_FOUND - while (addr) - { - delete addr->ai_addr; - auto next = addr->ai_next; - delete addr; - addr = next; - } -#else - freeaddrinfo(addr); -#endif - } -}; - -class Resolver -{ -public: - using ErrorCallbackType = std::function<void(const char*)>; - using SuccessCallbackType = std::function<void(const struct addrinfo*)>; - - Resolver(); - ~Resolver() = default; - Resolver(const Resolver&) = delete; - Resolver(Resolver&&) = delete; - Resolver& operator=(const Resolver&) = delete; - Resolver& operator=(Resolver&&) = delete; - - bool is_resolving() const - { -#ifdef CARES_FOUND - return this->resolving; -#else - return false; -#endif - } - - bool is_resolved() const - { - return this->resolved; - } - - const auto& get_result() const - { - return this->addr; - } - std::string get_error_message() const - { - return this->error_msg; - } - - void clear() - { -#ifdef CARES_FOUND - this->resolved6 = false; - this->resolved4 = false; - this->resolving = false; - this->cares_addrinfo = nullptr; - this->port.clear(); -#endif - this->resolved = false; - this->addr.reset(); - this->error_msg.clear(); - } - - void resolve(const std::string& hostname, const std::string& port, - SuccessCallbackType success_cb, ErrorCallbackType error_cb); - -private: - void start_resolving(const std::string& hostname, const std::string& port); -#ifdef CARES_FOUND - void on_hostname4_resolved(int status, struct hostent* hostent); - void on_hostname6_resolved(int status, struct hostent* hostent); - - void fill_ares_addrinfo4(const struct hostent* hostent); - void fill_ares_addrinfo6(const struct hostent* hostent); - - void on_resolved(); - - bool resolved4; - bool resolved6; - - bool resolving; - - /** - * When using c-ares to resolve the host asynchronously, we need the - * c-ares callbacks to fill a structure (a struct addrinfo, for - * compatibility with getaddrinfo and the rest of the code that works when - * c-ares is not used) with all returned values (for example an IPv6 and - * an IPv4). The pointer is given to the unique_ptr to manage its lifetime. - */ - struct addrinfo* cares_addrinfo; - std::string port; - -#endif - /** - * Tells if we finished the resolution process. It doesn't indicate if it - * was successful (it is true even if the result is an error). - */ - bool resolved; - std::string error_msg; - - - std::unique_ptr<struct addrinfo, AddrinfoDeleter> addr; - - ErrorCallbackType error_cb; - SuccessCallbackType success_cb; -}; - -std::string addr_to_string(const struct addrinfo* rp); - - |