| Line | % of fetches | Source |
|---|---|---|
| 1 | // Copyright (c) 2007-2016 Hartmut Kaiser | |
| 2 | // | |
| 3 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | |
| 4 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
| 5 | ||
| 6 | #if !defined(HPX_LCOS_ASYNC_SEP_28_2011_0840AM) | |
| 7 | #define HPX_LCOS_ASYNC_SEP_28_2011_0840AM | |
| 8 | ||
| 9 | #include <hpx/config.hpp> | |
| 10 | #include <hpx/lcos/async_fwd.hpp> | |
| 11 | #include <hpx/lcos/detail/async_implementations.hpp> | |
| 12 | #include <hpx/lcos/future.hpp> | |
| 13 | #include <hpx/runtime/components/client_base.hpp> | |
| 14 | #include <hpx/runtime/launch_policy.hpp> | |
| 15 | #include <hpx/runtime/naming/id_type.hpp> | |
| 16 | #include <hpx/traits/extract_action.hpp> | |
| 17 | #include <hpx/traits/is_action.hpp> | |
| 18 | #include <hpx/traits/is_client.hpp> | |
| 19 | #include <hpx/traits/is_distribution_policy.hpp> | |
| 20 | #include <hpx/traits/is_launch_policy.hpp> | |
| 21 | #include <hpx/traits/is_valid_action.hpp> | |
| 22 | #include <hpx/traits/promise_local_result.hpp> | |
| 23 | #include <hpx/util/bind.hpp> | |
| 24 | ||
| 25 | #include <type_traits> | |
| 26 | #include <utility> | |
| 27 | ||
| 28 | /////////////////////////////////////////////////////////////////////////////// | |
| 29 | namespace hpx { namespace detail | |
| 30 | { | |
| 31 | /////////////////////////////////////////////////////////////////////////// | |
| 32 | template <typename Action> | |
| 33 | struct async_action_client_dispatch | |
| 34 | { | |
| 35 | template <typename Client, typename Stub, typename ...Ts> | |
| 36 | HPX_FORCEINLINE lcos::future< | |
| 37 | typename traits::promise_local_result< | |
| 38 | typename traits::extract_action< | |
| 39 | Action | |
| 40 | >::remote_result_type | |
| 41 | >::type> | |
| 42 | operator()(launch launch_policy, | |
| 43 | components::client_base<Client, Stub> const& c, Ts &&... ts) const | |
| 44 | { | |
| 45 | HPX_ASSERT(c.is_ready()); | |
| 46 | return hpx::detail::async_impl<Action>(launch_policy, c.get_id(), | |
| 47 | std::forward<Ts>(ts)...); | |
| 48 | } | |
| 49 | }; | |
| 50 | ||
| 51 | /////////////////////////////////////////////////////////////////////////// | |
| 52 | // launch | |
| 53 | template <typename Action, typename Policy> | |
| 54 | struct async_action_dispatch<Action, Policy, | |
| 55 | typename std::enable_if< | |
| 56 | traits::is_launch_policy<Policy>::value | |
| 57 | >::type> | |
| 58 | { | |
| 59 | // id_type | |
| 60 | template <typename ...Ts> | |
| 61 | HPX_FORCEINLINE static | |
| 62 | lcos::future< | |
| 63 | typename traits::promise_local_result< | |
| 64 | typename hpx::traits::extract_action< | |
| 65 | Action | |
| 66 | >::remote_result_type | |
| 67 | >::type> | |
| 68 | call(Policy launch_policy, naming::id_type const& id, Ts&&... ts) | |
| 69 | { | |
| 70 | return hpx::detail::async_impl<Action>(launch_policy, id, | |
| 71 | std::forward<Ts>(ts)...); | |
| 72 | } | |
| 73 | ||
| 74 | template <typename Client, typename Stub, typename ...Ts> | |
| 75 | HPX_FORCEINLINE static | |
| 76 | lcos::future< | |
| 77 | typename traits::promise_local_result< | |
| 78 | typename traits::extract_action< | |
| 79 | Action | |
| 80 | >::remote_result_type | |
| 81 | >::type> | |
| 82 | call(Policy launch_policy, | |
| 83 | components::client_base<Client, Stub> c, Ts&&... ts) | |
| 84 | { | |
| 85 | // make sure the action is compatible with the component type | |
| 86 | typedef typename components::client_base< | |
| 87 | Client, Stub | |
| 88 | >::server_component_type component_type; | |
| 89 | ||
| 90 | typedef traits::is_valid_action<Action, component_type> is_valid; | |
| 91 | static_assert(is_valid::value, | |
| 92 | "The action to invoke is not supported by the target"); | |
| 93 | ||
| 94 | // invoke directly if client is ready | |
| 95 | if (c.is_ready()) | |
| 96 | { | |
| 97 | return hpx::detail::async_impl<Action>( | |
| 98 | launch_policy, c.get_id(), std::forward<Ts>(ts)...); | |
| 99 | } | |
| 100 | ||
| 101 | // defer invocation otherwise | |
| 102 | return c.then(util::bind( | |
| 103 | util::one_shot(async_action_client_dispatch<Action>()), | |
| 104 | launch_policy, c, std::forward<Ts>(ts)... | |
| 105 | )); | |
| 106 | } | |
| 107 | ||
| 108 | // distribution policy | |
| 109 | template <typename DistPolicy, typename ...Ts> | |
| 110 | HPX_FORCEINLINE static | |
| 111 | typename std::enable_if< | |
| 112 | traits::is_distribution_policy<DistPolicy>::value, | |
| 113 | lcos::future< | |
| 114 | typename traits::promise_local_result< | |
| 115 | typename hpx::traits::extract_action< | |
| 116 | Action | |
| 117 | >::remote_result_type | |
| 118 | >::type | |
| 119 | > | |
| 120 | >::type | |
| 121 | call(Policy launch_policy, | |
| 122 | DistPolicy const& policy, Ts&&... ts) | |
| 123 | { | |
| 124 | return policy.template async<Action>(launch_policy, | |
| 125 | std::forward<Ts>(ts)...); | |
| 126 | } | |
| 127 | }; | |
| 128 | ||
| 129 | // naming::id_type | |
| 130 | template <typename Action> | |
| 131 | struct async_action_dispatch<Action, naming::id_type> | |
| 132 | { | |
| 133 | template <typename ...Ts> | |
| 134 | HPX_FORCEINLINE static | |
| 135 | lcos::future< | |
| 136 | typename traits::promise_local_result< | |
| 137 | typename hpx::traits::extract_action< | |
| 138 | Action | |
| 139 | >::remote_result_type | |
| 140 | >::type> | |
| 141 | call(naming::id_type const& id, Ts&&... ts) | |
| 142 | { | |
| 143 | return async_action_dispatch< | |
| 144 | Action, hpx::detail::async_policy | |
| 145 | >::call(launch::async, id, std::forward<Ts>(ts)...); | |
| 146 | } | |
| 147 | }; | |
| 148 | ||
| 149 | // component::client | |
| 150 | template <typename Action, typename Client> | |
| 151 | struct async_action_dispatch<Action, Client, | |
| 152 | typename std::enable_if< | |
| 153 | traits::is_client<Client>::value | |
| 154 | >::type> | |
| 155 | { | |
| 156 | template <typename Client_, typename Stub, typename ...Ts> | |
| 157 | HPX_FORCEINLINE static | |
| 158 | lcos::future< | |
| 159 | typename traits::promise_local_result< | |
| 160 | typename traits::extract_action< | |
| 161 | Action | |
| 162 | >::remote_result_type | |
| 163 | >::type> | |
| 164 | call(components::client_base<Client_, Stub> const& c, Ts&&... ts) | |
| 165 | { | |
| 166 | return async_action_dispatch< | |
| 167 | Action, hpx::detail::async_policy | |
| 168 | >::call(launch::async, c, std::forward<Ts>(ts)...); | |
| 169 | } | |
| 170 | }; | |
| 171 | ||
| 172 | // distribution policy | |
| 173 | template <typename Action, typename Policy> | |
| 174 | struct async_action_dispatch<Action, Policy, | |
| 175 | typename std::enable_if< | |
| 176 | traits::is_distribution_policy<Policy>::value | |
| 177 | >::type> | |
| 178 | { | |
| 179 | template <typename DistPolicy, typename ...Ts> | |
| 180 | HPX_FORCEINLINE static | |
| 181 | lcos::future< | |
| 182 | typename traits::promise_local_result< | |
| 183 | typename hpx::traits::extract_action< | |
| 184 | Action | |
| 185 | >::remote_result_type | |
| 186 | >::type> | |
| 187 | call(DistPolicy const& policy, Ts&&... ts) | |
| 188 | { | |
| 189 | return async_action_dispatch< | |
| 190 | Action, hpx::detail::async_policy | |
| 191 | >::call(launch::async, policy, std::forward<Ts>(ts)...); | |
| 192 | } | |
| 193 | }; | |
| 194 | ||
| 195 | /////////////////////////////////////////////////////////////////////////// | |
| 196 | template <typename Action> | |
| 197 | struct async_launch_policy_dispatch<Action, | |
| 198 | typename std::enable_if< | |
| 199 | traits::is_action<Action>::value | |
| 200 | >::type> | |
| 201 | { | |
| 202 | typedef typename traits::promise_local_result< | |
| 203 | typename hpx::traits::extract_action< | |
| 204 | Action | |
| 205 | >::remote_result_type | |
| 206 | >::type result_type; | |
| 207 | ||
| 208 | template <typename Policy, typename ...Ts> | |
| 209 | HPX_FORCEINLINE static | |
| 210 | lcos::future<result_type> | |
| 211 | call(Policy launch_policy, Action const&, Ts &&... ts) | |
| 212 | { | |
| 213 | static_assert(traits::is_launch_policy<Policy>::value, | |
| 214 | "Policy must be a valid launch policy"); | |
| 215 | return async<Action>(launch_policy, std::forward<Ts>(ts)...); | |
| 216 | } | |
| 217 | }; | |
| 218 | }} | |
| 219 | ||
| 220 | namespace hpx | |
| 221 | { | |
| 222 | template <typename Action, typename F, typename ...Ts> | |
| 223 | HPX_FORCEINLINE | |
| 224 | auto async(F && f, Ts &&... ts) | |
| 225 | -> decltype(detail::async_action_dispatch< | |
| 226 | Action, typename util::decay<F>::type | |
| 227 | >::call(std::forward<F>(f), std::forward<Ts>(ts)...)) | |
| 228 | { | |
| 229 | return detail::async_action_dispatch< | |
| 230 | Action, typename util::decay<F>::type | |
| 231 | >::call(std::forward<F>(f), std::forward<Ts>(ts)...); | |
| 232 | } | |
| 233 | } | |
| 234 | ||
| 235 | /////////////////////////////////////////////////////////////////////////////// | |
| 236 | namespace hpx { namespace detail | |
| 237 | { | |
| 238 | /////////////////////////////////////////////////////////////////////////// | |
| 239 | // any action | |
| 240 | template <typename Action> | |
| 241 | struct async_dispatch<Action, | |
| 242 | typename std::enable_if< | |
| 243 | traits::is_action<Action>::value | |
| 244 | >::type> | |
| 245 | { | |
| 246 | template < | |
| 247 | typename Component, typename Signature, typename Derived, | |
| 248 | typename ...Ts> | |
| 249 | HPX_FORCEINLINE static lcos::future< | |
| 250 | typename traits::promise_local_result< | |
| 251 | typename hpx::traits::extract_action< | |
| 252 | Derived | |
| 253 | >::remote_result_type | |
| 254 | >::type> | |
| 255 | call(hpx::actions::basic_action<Component, Signature, Derived> const&, | |
| 256 | naming::id_type const& id, Ts&&... vs) | |
| 257 | { | |
| 258 | return async<Derived>(launch::async, id, std::forward<Ts>(vs)...); | |
| 259 | } | |
| 260 | ||
| 261 | template < | |
| 262 | typename Component, typename Signature, typename Derived, | |
| 263 | typename Client, typename Stub, typename ...Ts> | |
| 264 | HPX_FORCEINLINE static lcos::future< | |
| 265 | typename traits::promise_local_result< | |
| 266 | typename traits::extract_action< | |
| 267 | Derived | |
| 268 | >::remote_result_type | |
| 269 | >::type> | |
| 270 | call(hpx::actions::basic_action<Component, Signature, Derived> const&, | |
| 271 | components::client_base<Client, Stub> const& c, Ts&&... vs) | |
| 272 | { | |
| 273 | typedef typename components::client_base< | |
| 274 | Client, Stub | |
| 275 | >::server_component_type component_type; | |
| 276 | ||
| 277 | typedef traits::is_valid_action<Derived, component_type> is_valid; | |
| 278 | static_assert(is_valid::value, | |
| 279 | "The action to invoke is not supported by the target"); | |
| 280 | ||
| 281 | return async<Derived>(launch::async, c.get_id(), | |
| 282 | std::forward<Ts>(vs)...); | |
| 283 | } | |
| 284 | ||
| 285 | template < | |
| 286 | typename Component, typename Signature, typename Derived, | |
| 287 | typename DistPolicy, typename ...Ts> | |
| 288 | HPX_FORCEINLINE static lcos::future< | |
| 289 | typename traits::promise_local_result< | |
| 290 | typename hpx::traits::extract_action< | |
| 291 | Derived | |
| 292 | >::remote_result_type | |
| 293 | >::type> | |
| 294 | call(hpx::actions::basic_action<Component, Signature, Derived> const&, | |
| 295 | DistPolicy const& policy, Ts&&... vs) | |
| 296 | { | |
| 297 | return async<Derived>(policy, std::forward<Ts>(vs)...); | |
| 298 | } | |
| 299 | }; | |
| 300 | ||
| 301 | // launch with any action | |
| 302 | template <typename Policy> | |
| 303 | struct async_dispatch<Policy, | |
| 304 | typename std::enable_if< | |
| 305 | traits::is_launch_policy<Policy>::value | |
| 306 | >::type> | |
| 307 | { | |
| 308 | template <typename F, typename ...Ts> | |
| 309 | HPX_FORCEINLINE static auto | |
| 310 | call(Policy launch_policy, F && f, Ts &&... ts) | |
| 311 | -> decltype(detail::async_launch_policy_dispatch< | |
| 312 | typename util::decay<F>::type | |
| 313 | >::call(launch_policy, std::forward<F>(f), std::forward<Ts>(ts)...)) | |
| 314 | { | |
| 315 | return detail::async_launch_policy_dispatch< | |
| 316 | typename util::decay<F>::type | |
| 317 | >::call(launch_policy, std::forward<F>(f), std::forward<Ts>(ts)...); | |
| 318 | } | |
| 319 | ||
| 320 | template <typename Component, typename Signature, typename Derived, | |
| 321 | typename Client, typename Stub, typename ...Ts> | |
| 322 | HPX_FORCEINLINE static | |
| 323 | lcos::future< | |
| 324 | typename traits::promise_local_result< | |
| 325 | typename traits::extract_action< | |
| 326 | Derived | |
| 327 | >::remote_result_type | |
| 328 | >::type> | |
| 329 | call(Policy launch_policy, | |
| 330 | hpx::actions::basic_action<Component, Signature, Derived> const&, | |
| 331 | components::client_base<Client, Stub> const& c, Ts&&... ts) | |
| 332 | { | |
| 333 | typedef typename components::client_base< | |
| 334 | Client, Stub | |
| 335 | >::server_component_type component_type; | |
| 336 | ||
| 337 | typedef traits::is_valid_action<Derived, component_type> is_valid; | |
| 338 | static_assert(is_valid::value, | |
| 339 | "The action to invoke is not supported by the target"); | |
| 340 | ||
| 341 | return async<Derived>(launch_policy, c.get_id(), | |
| 342 | std::forward<Ts>(ts)...); | |
| 343 | } | |
| 344 | ||
| 345 | template <typename Component, typename Signature, typename Derived, | |
| 346 | typename DistPolicy, typename ...Ts> | |
| 347 | HPX_FORCEINLINE static | |
| 348 | typename std::enable_if< | |
| 349 | traits::is_distribution_policy<DistPolicy>::value, | |
| 350 | lcos::future< | |
| 351 | typename traits::promise_local_result< | |
| 352 | typename traits::extract_action< | |
| 353 | Derived | |
| 354 | >::remote_result_type | |
| 355 | >::type> | |
| 356 | >::type | |
| 357 | call(Policy launch_policy, | |
| 358 | hpx::actions::basic_action<Component, Signature, Derived> const&, | |
| 359 | DistPolicy const& policy, Ts&&... ts) | |
| 360 | { | |
| 361 | return async<Derived>(launch_policy, policy, | |
| 362 | std::forward<Ts>(ts)...); | |
| 363 | } | |
| 364 | }; | |
| 365 | }} | |
| 366 | ||
| 367 | #endif | |
| 368 | ||
| 369 |
Copyright (c) 2006-2012 Rogue Wave Software, Inc. All Rights Reserved.
Patents pending.