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stabilize liveliness API (eclipse-zenoh#314)
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* stabilize liveliness API

* submodule update

* zenoh-c submodule update

* ifdefs restored to handle zenoh-pico Z_FEATURE_LIVELINESS setting

* updated submodules
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milyin authored Dec 11, 2024
1 parent 5c98296 commit 0b42e29
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Showing 9 changed files with 9 additions and 49 deletions.
3 changes: 0 additions & 3 deletions examples/CMakeLists.txt
Original file line number Diff line number Diff line change
Expand Up @@ -57,9 +57,6 @@ function(add_examples glob mode lib)
endif()

if(("${mode}" STREQUAL "zenohc") AND (NOT(ZENOHC_BUILD_WITH_UNSTABLE_API)))
if(${file} MATCHES ".*liveliness.*$")
continue()
endif()
if(${file} MATCHES ".*querier.*$")
continue()
endif()
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2 changes: 2 additions & 0 deletions include/zenoh/api.hxx
Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,9 @@
#include "api/hello.hxx"
#include "api/id.hxx"
#include "api/keyexpr.hxx"
#if defined(ZENOHCXX_ZENOHC) || Z_FEATURE_LIVELINESS == 1
#include "api/liveliness.hxx"
#endif
#include "api/logging.hxx"
#include "api/publisher.hxx"
#include "api/query.hxx"
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6 changes: 1 addition & 5 deletions include/zenoh/api/liveliness.hxx
Original file line number Diff line number Diff line change
Expand Up @@ -13,23 +13,20 @@

#pragma once

#if defined(Z_FEATURE_UNSTABLE_API) && (defined(ZENOHCXX_ZENOHC) || Z_FEATURE_LIVELINESS == 1)
#include "base.hxx"
#include "interop.hxx"

namespace zenoh {

class Session;

/// @warning This API has been marked as unstable: it works as advertised, but it may be changed in a future release.
/// @brief A liveliness token that can be used to provide the network with information about connectivity to its
/// declarer.
///
/// When constructed, a PUT sample will be received by liveliness subscribers on intersecting key expressions.
///
/// A DELETE on the token's key expression will be received by subscribers if the token is destroyed, or if connectivity
/// between the subscriber and the token's creator is lost.
/// @note Zenoh-c only.
class LivelinessToken : public Owned<::z_owned_liveliness_token_t> {
LivelinessToken(zenoh::detail::null_object_t) : Owned(nullptr){};
friend struct interop::detail::Converter;
Expand All @@ -44,5 +41,4 @@ class LivelinessToken : public Owned<::z_owned_liveliness_token_t> {
}
};

} // namespace zenoh
#endif
} // namespace zenoh
30 changes: 3 additions & 27 deletions include/zenoh/api/session.hxx
Original file line number Diff line number Diff line change
Expand Up @@ -863,11 +863,8 @@ class Session : public Owned<::z_owned_session_t> {
}
#endif

#if defined(Z_FEATURE_UNSTABLE_API) && (defined(ZENOHCXX_ZENOHC) || Z_FEATURE_LIVELINESS == 1)
/// @warning This API has been marked as unstable: it works as advertised, but it may be changed in a future
/// release.
#if defined(ZENOHCXX_ZENOHC) || Z_FEATURE_LIVELINESS == 1
/// @brief Options to pass to ``Session::liveliness_declare_token``.
/// @note Zenoh-c only.
struct LivelinessDeclarationOptions {
protected:
uint8_t _dummy = 0;
Expand All @@ -876,8 +873,6 @@ class Session : public Owned<::z_owned_session_t> {
static LivelinessDeclarationOptions create_default() { return {}; }
};

/// @warning This API has been marked as unstable: it works as advertised, but it may be changed in a future
/// release.
/// @brief Declares a liveliness token on the network.
///
/// Liveliness token subscribers on an intersecting key expression will receive a PUT sample when connectivity
Expand All @@ -888,7 +883,6 @@ class Session : public Owned<::z_owned_session_t> {
/// @param err if not null, the result code will be written to this location, otherwise ZException exception will be
/// thrown in case of error.
/// @return a ``LivelinessToken``.
/// @note Zenoh-c only.
LivelinessToken liveliness_declare_token(
const KeyExpr& key_expr,
LivelinessDeclarationOptions&& options = LivelinessDeclarationOptions::create_default(),
Expand All @@ -903,19 +897,14 @@ class Session : public Owned<::z_owned_session_t> {
return t;
}

/// @warning This API has been marked as unstable: it works as advertised, but it may be changed in a future
/// release.
/// @brief Options to pass to ``Session::liveliness_declare_subscriber``.
/// @note Zenoh-c only.
struct LivelinessSubscriberOptions {
public:
bool history = false;

static LivelinessSubscriberOptions create_default() { return {}; }
};

/// @warning This API has been marked as unstable: it works as advertised, but it may be changed in a future
/// release.
/// @brief Declares a subscriber on liveliness tokens that intersect `key_expr`.
/// @param key_expr the key expression to subscribe to.
/// @param on_sample the callable that will be called each time a liveliness token status is changed.
Expand All @@ -924,7 +913,6 @@ class Session : public Owned<::z_owned_session_t> {
/// @param err if not null, the result code will be written to this location, otherwise ZException exception will be
/// thrown in case of error.
/// @return a ``Subscriber`` object.
/// @note Zenoh-c only.
template <class C, class D>
[[nodiscard]] Subscriber<void> liveliness_declare_subscriber(
const KeyExpr& key_expr, C&& on_sample, D&& on_drop,
Expand Down Expand Up @@ -989,9 +977,7 @@ class Session : public Owned<::z_owned_session_t> {
}
#endif

#if defined(Z_FEATURE_UNSTABLE_API) && (defined(ZENOHCXX_ZENOHC) || Z_FEATURE_LIVELINESS == 1)
/// @warning This API has been marked as unstable: it works as advertised, but it may be changed in a future
/// release.
#if defined(ZENOHCXX_ZENOHC) || Z_FEATURE_LIVELINESS == 1
/// @brief Declare a subscriber on liveliness tokens that intersect `key_expr`.
/// @tparam Channel the type of channel used to create stream of data (see ``zenoh::channels::FifoChannel`` or
/// ``zenoh::channels::RingChannel``).
Expand All @@ -1001,7 +987,6 @@ class Session : public Owned<::z_owned_session_t> {
/// @param err if not null, the result code will be written to this location, otherwise ZException exception will be
/// thrown in case of error.
/// @return a ``Subscriber`` object.
/// @note Zenoh-c only.
template <class Channel>
[[nodiscard]] Subscriber<typename Channel::template HandlerType<Sample>> liveliness_declare_subscriber(
const KeyExpr& key_expr, Channel channel,
Expand All @@ -1021,10 +1006,7 @@ class Session : public Owned<::z_owned_session_t> {
std::move(cb_handler_pair.second));
}

/// @warning This API has been marked as unstable: it works as advertised, but it may be changed in a future
/// release.
/// @brief Options to pass to ``Session::liveliness_get``.
/// @note Zenoh-c only.
struct LivelinessGetOptions {
/// @name Fields

Expand All @@ -1037,8 +1019,6 @@ class Session : public Owned<::z_owned_session_t> {
static LivelinessGetOptions create_default() { return {}; }
};

/// @warning This API has been marked as unstable: it works as advertised, but it may be changed in a future
/// release.
/// @brief Query liveliness tokens currently on the network with a key expression intersecting with `key_expr`.
///
/// @param key_expr: the key expression to query liveliness tokens for.
Expand All @@ -1047,7 +1027,6 @@ class Session : public Owned<::z_owned_session_t> {
/// @param options: additional options for the liveliness get operation.
/// @param err if not null, the result code will be written to this location, otherwise ZException exception will be
/// thrown in case of error.
/// @note Zenoh-c only.
template <class C, class D>
void liveliness_get(const KeyExpr& key_expr, C&& on_reply, D&& on_drop,
LivelinessGetOptions&& options = LivelinessGetOptions::create_default(),
Expand All @@ -1071,8 +1050,6 @@ class Session : public Owned<::z_owned_session_t> {
err, "Failed to perform liveliness_get operation");
}

/// @warning This API has been marked as unstable: it works as advertised, but it may be changed in a future
/// release.
/// @brief Query liveliness tokens currently on the network with a key expression intersecting with `key_expr`.
/// @tparam Channel the type of channel used to create stream of data (see ``zenoh::channels::FifoChannel`` or
/// ``zenoh::channels::RingChannel``).
Expand All @@ -1082,7 +1059,6 @@ class Session : public Owned<::z_owned_session_t> {
/// @param err if not null, the result code will be written to this location, otherwise ZException exception will be
/// thrown in case of error.
/// @return reply handler.
/// @note Zenoh-c only.
template <class Channel>
typename Channel::template HandlerType<Reply> liveliness_get(
const KeyExpr& key_expr, Channel channel,
Expand All @@ -1099,7 +1075,6 @@ class Session : public Owned<::z_owned_session_t> {
return std::move(cb_handler_pair.second);
}

#endif
/// @brief Create Timestamp from session id.
/// @param err if not null, the result code will be written to this location, otherwise ZException exception will be
/// thrown in case of error.
Expand All @@ -1120,6 +1095,7 @@ class Session : public Owned<::z_owned_session_t> {
(void)options;
__ZENOH_RESULT_CHECK(::z_close(interop::as_loaned_c_ptr(*this), nullptr), err, "Failed to close the session");
}
#endif

#if defined(ZENOHCXX_ZENOHC) && defined(Z_FEATURE_UNSTABLE_API)
/// @warning This API has been marked as unstable: it works as advertised, but it may be changed in a future
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2 changes: 1 addition & 1 deletion scripts/install_from_git.sh
Original file line number Diff line number Diff line change
Expand Up @@ -38,7 +38,7 @@ absolute_install_location=$(cd $1; pwd)
bash $SCRIPT_DIR/install_local.sh $SCRIPT_DIR/../zenoh-c $absolute_install_location -DZENOHC_BUILD_WITH_UNSTABLE_API=$USE_UNSTABLE -DZENOHC_BUILD_WITH_SHARED_MEMORY=$USE_SHARED_MEMORY
if [ "$BUILD_PICO" == "ON" ]; then
#build zenoh-pico
bash $SCRIPT_DIR/install_local.sh $SCRIPT_DIR/../zenoh-pico $absolute_install_location -DZ_FEATURE_UNSTABLE_API=$USE_UNSTABLE_PICO -DZ_FEATURE_LIVELINESS=$USE_UNSTABLE_PICO
bash $SCRIPT_DIR/install_local.sh $SCRIPT_DIR/../zenoh-pico $absolute_install_location -DZ_FEATURE_UNSTABLE_API=$USE_UNSTABLE_PICO
fi

rm -rf ./build
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5 changes: 0 additions & 5 deletions tests/CMakeLists.txt
Original file line number Diff line number Diff line change
Expand Up @@ -71,11 +71,6 @@ endforeach()
if(ZENOHCXX_ZENOHC)
file(GLOB files "${CMAKE_CURRENT_SOURCE_DIR}/zenohc/*.cxx")
foreach(file ${files})
if(NOT(ZENOHC_BUILD_WITH_UNSTABLE_API))
if(${file} MATCHES ".*liveliness.*$")
continue()
endif()
endif()
add_test_instance(${file} zenohc zenohcxx::zenohc "")
endforeach()
endif()
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6 changes: 0 additions & 6 deletions tests/universal/network/liveliness.cxx
Original file line number Diff line number Diff line change
Expand Up @@ -23,8 +23,6 @@ using namespace std::chrono_literals;
#undef NDEBUG
#include <assert.h>

#if defined(Z_FEATURE_UNSTABLE_API) && (defined(ZENOHCXX_ZENOHC) || Z_FEATURE_LIVELINESS == 1)

void test_liveliness_get() {
KeyExpr ke("zenoh/liveliness/test/*");
KeyExpr token_ke("zenoh/liveliness/test/1");
Expand Down Expand Up @@ -92,11 +90,7 @@ void test_liveliness_subscriber() {
assert(delete_tokens.count("zenoh/liveliness/test/2") == 1);
}

#endif

int main(int argc, char** argv) {
#if defined Z_FEATURE_UNSTABLE_API
test_liveliness_get();
test_liveliness_subscriber();
#endif
};
2 changes: 1 addition & 1 deletion zenoh-pico
Submodule zenoh-pico updated 183 files

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