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Use an explicit template parameter instead of enable_if #183

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Mar 27, 2019
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Use an explicit template parameter instead of enable_if #183

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161 changes: 66 additions & 95 deletions include/mqtt/endpoint.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -2469,17 +2469,15 @@ class endpoint : public std::enable_shared_from_this<endpoint<Socket, Mutex, Loc
* You can subscribe multiple topics all at once.<BR>
* See http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718066
*/
template <typename... Args>
typename std::enable_if<
sizeof...(Args) != 0,
packet_id_t
>::type
async_subscribe(
template <typename Arg0, typename... Args>
packet_id_t async_subscribe(
std::string const& topic_name,
std::uint8_t qos, Args&&... args) {
std::uint8_t qos,
Arg0&& arg0,
Args&&... args) {
BOOST_ASSERT(qos == qos::at_most_once || qos::at_least_once || qos::exactly_once);
packet_id_t packet_id = acquire_unique_packet_id();
acquired_async_subscribe(packet_id, topic_name, qos, std::forward<Args>(args)...);
acquired_async_subscribe(packet_id, topic_name, qos, std::forward<Arg0>(arg0), std::forward<Args>(args)...);
return packet_id;
}

Expand All @@ -2497,17 +2495,15 @@ class endpoint : public std::enable_shared_from_this<endpoint<Socket, Mutex, Loc
* You can subscribe multiple topics all at once.<BR>
* See http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718066
*/
template <typename... Args>
typename std::enable_if<
sizeof...(Args) != 0,
packet_id_t
>::type
async_subscribe(
template <typename Arg0, typename... Args>
packet_id_t async_subscribe(
as::const_buffer const& topic_name,
std::uint8_t qos, Args&&... args) {
std::uint8_t qos,
Arg0&& arg0,
Args&&... args) {
BOOST_ASSERT(qos == qos::at_most_once || qos::at_least_once || qos::exactly_once);
packet_id_t packet_id = acquire_unique_packet_id();
acquired_async_subscribe(packet_id, topic_name, qos, std::forward<Args>(args)...);
acquired_async_subscribe(packet_id, topic_name, qos, std::forward<Arg0>(arg0), std::forward<Args>(args)...);
return packet_id;
}

Expand Down Expand Up @@ -2601,16 +2597,13 @@ class endpoint : public std::enable_shared_from_this<endpoint<Socket, Mutex, Loc
* You can subscribe multiple topics all at once.<BR>
* See http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718066
*/
template <typename... Args>
typename std::enable_if<
sizeof...(Args) != 0,
packet_id_t
>::type
async_unsubscribe(
template <typename Arg0, typename... Args>
packet_id_t async_unsubscribe(
std::string const& topic_name,
Arg0&& arg0,
Args&&... args) {
packet_id_t packet_id = acquire_unique_packet_id();
acquired_async_unsubscribe(packet_id, topic_name, std::forward<Args>(args)...);
acquired_async_unsubscribe(packet_id, topic_name, std::forward<Arg0>(arg0), std::forward<Args>(args)...);
return packet_id;
}

Expand All @@ -2626,16 +2619,13 @@ class endpoint : public std::enable_shared_from_this<endpoint<Socket, Mutex, Loc
* You can subscribe multiple topics all at once.<BR>
* See http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718066
*/
template <typename... Args>
typename std::enable_if<
sizeof...(Args) != 0,
packet_id_t
>::type
async_unsubscribe(
template <typename Arg0, typename... Args>
packet_id_t async_unsubscribe(
as::const_buffer const& topic_name,
Arg0&& arg0,
Args&&... args) {
packet_id_t packet_id = acquire_unique_packet_id();
acquired_async_unsubscribe(packet_id, topic_name, std::forward<Args>(args)...);
acquired_async_unsubscribe(packet_id, topic_name, std::forward<Arg0>(arg0), std::forward<Args>(args)...);
return packet_id;
}

Expand Down Expand Up @@ -2999,18 +2989,16 @@ class endpoint : public std::enable_shared_from_this<endpoint<Socket, Mutex, Loc
* You can subscribe multiple topics all at once.<BR>
* See http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718066<BR>
*/
template <typename... Args>
typename std::enable_if<
sizeof...(Args) != 0,
bool
>::type
async_subscribe(
template <typename Arg0, typename... Args>
bool async_subscribe(
packet_id_t packet_id,
std::string const& topic_name,
std::uint8_t qos, Args&&... args) {
std::uint8_t qos,
Arg0&& arg0,
Args&&... args) {
BOOST_ASSERT(qos == qos::at_most_once || qos::at_least_once || qos::exactly_once);
if (register_packet_id(packet_id)) {
acquired_async_subscribe(packet_id, topic_name, qos, std::forward<Args>(args)...);
acquired_async_subscribe(packet_id, topic_name, qos, std::forward<Arg0>(arg0), std::forward<Args>(args)...);
return true;
}
return false;
Expand All @@ -3031,18 +3019,16 @@ class endpoint : public std::enable_shared_from_this<endpoint<Socket, Mutex, Loc
* You can subscribe multiple topics all at once.<BR>
* See http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718066<BR>
*/
template <typename... Args>
typename std::enable_if<
sizeof...(Args) != 0,
bool
>::type
async_subscribe(
template <typename Arg0, typename... Args>
bool async_subscribe(
packet_id_t packet_id,
as::const_buffer const& topic_name,
std::uint8_t qos, Args&&... args) {
std::uint8_t qos,
Arg0&& arg0,
Args&&... args) {
BOOST_ASSERT(qos == qos::at_most_once || qos::at_least_once || qos::exactly_once);
if (register_packet_id(packet_id)) {
acquired_async_subscribe(packet_id, topic_name, qos, std::forward<Args>(args)...);
acquired_async_subscribe(packet_id, topic_name, qos, std::forward<Arg0>(arg0), std::forward<Args>(args)...);
return true;
}
return false;
Expand Down Expand Up @@ -3160,17 +3146,14 @@ class endpoint : public std::enable_shared_from_this<endpoint<Socket, Mutex, Loc
* You can subscribe multiple topics all at once.<BR>
* See http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718066
*/
template <typename... Args>
typename std::enable_if<
sizeof...(Args) != 0,
bool
>::type
async_unsubscribe(
template <typename Arg0, typename... Args>
bool async_unsubscribe(
packet_id_t packet_id,
std::string const& topic_name,
Arg0&& arg0,
Args&&... args) {
if (register_packet_id(packet_id)) {
acquired_async_unsubscribe(packet_id, topic_name, std::forward<Args>(args)...);
acquired_async_unsubscribe(packet_id, topic_name, std::forward<Arg0>(arg0), std::forward<Args>(args)...);
return true;
}
return false;
Expand All @@ -3190,17 +3173,14 @@ class endpoint : public std::enable_shared_from_this<endpoint<Socket, Mutex, Loc
* You can subscribe multiple topics all at once.<BR>
* See http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718066
*/
template <typename... Args>
typename std::enable_if<
sizeof...(Args) != 0,
bool
>::type
async_unsubscribe(
template <typename Arg0, typename... Args>
bool async_unsubscribe(
packet_id_t packet_id,
as::const_buffer const& topic_name,
Arg0&& arg0,
Args&&... args) {
if (register_packet_id(packet_id)) {
acquired_async_unsubscribe(packet_id, topic_name, std::forward<Args>(args)...);
acquired_async_unsubscribe(packet_id, topic_name, std::forward<Arg0>(arg0), std::forward<Args>(args)...);
return true;
}
return false;
Expand Down Expand Up @@ -3587,17 +3567,15 @@ class endpoint : public std::enable_shared_from_this<endpoint<Socket, Mutex, Loc
* You can subscribe multiple topics all at once.<BR>
* See http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718066<BR>
*/
template <typename... Args>
typename std::enable_if<
sizeof...(Args) != 0,
void
>::type
acquired_async_subscribe(
template <typename Arg0, typename... Args>
void acquired_async_subscribe(
packet_id_t packet_id,
std::string const& topic_name,
std::uint8_t qos, Args&&... args) {
std::uint8_t qos,
Arg0&& arg0,
Args&&... args) {
BOOST_ASSERT(qos == qos::at_most_once || qos::at_least_once || qos::exactly_once);
return acquired_async_subscribe_imp(packet_id, topic_name, qos, std::forward<Args>(args)...);
acquired_async_subscribe_imp(packet_id, topic_name, qos, std::forward<Arg0>(arg0), std::forward<Args>(args)...);
}

/**
Expand All @@ -3615,17 +3593,15 @@ class endpoint : public std::enable_shared_from_this<endpoint<Socket, Mutex, Loc
* You can subscribe multiple topics all at once.<BR>
* See http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718066<BR>
*/
template <typename... Args>
typename std::enable_if<
sizeof...(Args) != 0,
void
>::type
acquired_async_subscribe(
template <typename Arg0, typename... Args>
void acquired_async_subscribe(
packet_id_t packet_id,
as::const_buffer const& topic_name,
std::uint8_t qos, Args&&... args) {
std::uint8_t qos,
Arg0&& arg0,
Args&&... args) {
BOOST_ASSERT(qos == qos::at_most_once || qos::at_least_once || qos::exactly_once);
return acquired_async_subscribe_imp(packet_id, topic_name, qos, std::forward<Args>(args)...);
acquired_async_subscribe_imp(packet_id, topic_name, qos, std::forward<Arg0>(arg0), std::forward<Args>(args)...);
}

/**
Expand Down Expand Up @@ -3768,15 +3744,13 @@ class endpoint : public std::enable_shared_from_this<endpoint<Socket, Mutex, Loc
* You can subscribe multiple topics all at once.<BR>
* See http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718066
*/
template <typename... Args>
typename std::enable_if<
sizeof...(Args) != 0
>::type
acquired_async_unsubscribe(
template <typename Arg0, typename... Args>
void acquired_async_unsubscribe(
packet_id_t packet_id,
std::string const& topic_name,
Arg0&& arg0,
Args&&... args) {
acquired_async_unsubscribe_imp(packet_id, topic_name, std::forward<Args>(args)...);
acquired_async_unsubscribe_imp(packet_id, topic_name, std::forward<Arg0>(arg0), std::forward<Args>(args)...);
}

/**
Expand All @@ -3791,15 +3765,13 @@ class endpoint : public std::enable_shared_from_this<endpoint<Socket, Mutex, Loc
* You can subscribe multiple topics all at once.<BR>
* See http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718066
*/
template <typename... Args>
typename std::enable_if<
sizeof...(Args) != 0
>::type
acquired_async_unsubscribe(
template <typename Arg0, typename... Args>
void acquired_async_unsubscribe(
packet_id_t packet_id,
as::const_buffer const& topic_name,
Arg0&& arg0,
Args&&... args) {
acquired_async_unsubscribe_imp(packet_id, topic_name, std::forward<Args>(args)...);
acquired_async_unsubscribe_imp(packet_id, topic_name, std::forward<Arg0>(arg0), std::forward<Args>(args)...);
}

/**
Expand Down Expand Up @@ -3957,15 +3929,14 @@ class endpoint : public std::enable_shared_from_this<endpoint<Socket, Mutex, Loc
* and the last one is a callback function that is called when async operation will finish.
* See http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718068
*/
template <typename... Args>
typename std::enable_if<
sizeof...(Args) != 0
>::type
async_suback(
template <typename Arg0, typename... Args>
void async_suback(
packet_id_t packet_id,
std::uint8_t qos, Args&&... args) {
std::uint8_t qos,
Arg0&& arg0,
Args&&... args) {
BOOST_ASSERT(qos == qos::at_most_once || qos::at_least_once || qos::exactly_once);
async_suback_imp(packet_id, qos, std::forward<Args>(args)...);
async_suback_imp(packet_id, qos, std::forward<Arg0>(arg0), std::forward<Args>(args)...);
}

/**
Expand Down