Adapting HPX actions module to C++20 modules

[arpittkhandelwal]

This PR modularizes the actions module to properly support C++20 standard modules, following the exact same architectural pattern previously established for components_base and actions_base.

Key Changes:

• Macro Segregation: Extracted all registration macros (e.g. HPX_REGISTER_ACTION_* and HPX_DEFINE_GET_ACTION_NAME_*) from base_action.hpp into a newly created macros.hpp file.
• CMake Configuration: Exposed the newly created macros.hpp to CMake via the MACRO_HEADERS argument, protecting the macros from breaking the BMI generation.
• Module Generation: Enabled GLOBAL_HEADER_MODULE_GEN ON for the actions module in CMakeLists.txt.
• Global Header Adoption: Refactored 42 instances of granular internal header inclusions (#include <hpx/actions/...>) across the broader codebase to strictly use the unified module interface (#include <hpx/modules/actions.hpp>).

This brings the actions module fully up to speed with the repository's ongoing C++20 transition requirements.

[codacy-production]

Up to standards ✅

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[Copilot]

Pull request overview

This PR continues HPX’s C++20 modules transition by making the actions module safe to consume through generated module-aware global headers, primarily by separating macro-only headers from BMI-affecting headers and updating downstream includes to use the unified hpx/modules/actions.hpp entrypoint.

Changes:

• Extracted action registration/name macros from base_action.hpp into a dedicated hpx/actions/macros.hpp, and exposed it to CMake through MACRO_HEADERS.
• Enabled GLOBAL_HEADER_MODULE_GEN ON for actions and a number of related modules to support C++20 module interface generation.
• Replaced many granular <hpx/actions/...> includes across the codebase with <hpx/modules/actions.hpp>.

Reviewed changes

Copilot reviewed 75 out of 75 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
replace_actions.py	Adds a helper script to rewrite action includes to the unified module include.
modularize.py	Adds a helper script to enable GLOBAL_HEADER_MODULE_GEN and collect detail headers.
libs/full/segmented_algorithms/CMakeLists.txt	Enables module header generation for the module.
libs/full/runtime_distributed/include/hpx/runtime_distributed/server/runtime_support.hpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/runtime_distributed/CMakeLists.txt	Enables module header generation for the module.
libs/full/runtime_components/src/server/console_logging_server.cpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/runtime_components/src/server/console_error_sink_server.cpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/runtime_components/include/hpx/runtime_components/server/console_logging.hpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/runtime_components/include/hpx/runtime_components/server/console_error_sink.hpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/runtime_components/include/hpx/runtime_components/distributed_metadata_base.hpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/runtime_components/CMakeLists.txt	Enables module header generation for the module.
libs/full/resiliency_distributed/CMakeLists.txt	Enables module header generation for the module.
libs/full/performance_counters/src/server/base_performance_counter.cpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/performance_counters/src/counter_creators.cpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/performance_counters/include/hpx/performance_counters/server/symbol_namespace_counters.hpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/performance_counters/include/hpx/performance_counters/server/primary_namespace_counters.hpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/performance_counters/include/hpx/performance_counters/server/locality_namespace_counters.hpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/performance_counters/include/hpx/performance_counters/server/component_namespace_counters.hpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/performance_counters/include/hpx/performance_counters/server/base_performance_counter.hpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/performance_counters/CMakeLists.txt	Enables module header generation and adds a detail header to the global header.
libs/full/parcelset/src/parcel.cpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/parcelset/src/detail/parcel_await.cpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/parcelset/include/hpx/parcelset/parcel.hpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/parcelset/CMakeLists.txt	Enables module header generation and adds detail headers to the global header.
libs/full/parcelports/CMakeLists.txt	Enables module header generation for the module.
libs/full/parcelport_tcp/CMakeLists.txt	Enables module header generation for the module.
libs/full/parcelport_mpi/CMakeLists.txt	Enables module header generation for the module.
libs/full/parcelport_lcw/CMakeLists.txt	Enables module header generation for the module.
libs/full/parcelport_lci/CMakeLists.txt	Enables module header generation for the module.
libs/full/parcelport_gasnet/CMakeLists.txt	Enables module header generation for the module.
libs/full/lcos_distributed/include/hpx/lcos_distributed/server/channel.hpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/lcos_distributed/CMakeLists.txt	Enables module header generation for the module.
libs/full/init_runtime/CMakeLists.txt	Enables module header generation and adds detail headers to the global header set.
libs/full/include/include/hpx/include/components.hpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/include/include/hpx/include/actions.hpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/executors_distributed/include/hpx/executors_distributed/distribution_policy_executor.hpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/executors_distributed/CMakeLists.txt	Enables module header generation for the module.
libs/full/distribution_policies/CMakeLists.txt	Enables module header generation for the module.
libs/full/compute/CMakeLists.txt	Enables module header generation and adds a detail header to the global header.
libs/full/components/CMakeLists.txt	Enables module header generation for the module.
libs/full/collectives/src/latch.cpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/collectives/include/hpx/collectives/reduce_direct.hpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/collectives/include/hpx/collectives/fold.hpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/collectives/include/hpx/collectives/detail/latch.hpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/collectives/include/hpx/collectives/broadcast_direct.hpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/collectives/CMakeLists.txt	Enables module header generation and adds detail headers to the global header.
libs/full/checkpoint/CMakeLists.txt	Enables module header generation for the module.
libs/full/async_distributed/src/continuation.cpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/async_distributed/src/base_lco.cpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/async_distributed/include/hpx/async_distributed/trigger_lco.hpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/async_distributed/include/hpx/async_distributed/transfer_continuation_action.hpp	Consolidates multiple action includes into hpx/modules/actions.hpp.
libs/full/async_distributed/include/hpx/async_distributed/put_parcel.hpp	Consolidates action includes into hpx/modules/actions.hpp.
libs/full/async_distributed/include/hpx/async_distributed/detail/post.hpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/async_distributed/include/hpx/async_distributed/base_lco_with_value.hpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/async_distributed/include/hpx/async_distributed/base_lco.hpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/async_distributed/CMakeLists.txt	Enables module header generation and adds detail headers to the global header list.
libs/full/async_colocated/CMakeLists.txt	Enables module header generation and adds detail headers to the global header list.
libs/full/agas_base/include/hpx/agas_base/server/symbol_namespace.hpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/agas_base/include/hpx/agas_base/server/primary_namespace.hpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/agas_base/include/hpx/agas_base/server/locality_namespace.hpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/agas_base/include/hpx/agas_base/server/component_namespace.hpp	Switches to unified hpx/modules/actions.hpp include.
libs/full/agas_base/CMakeLists.txt	Enables module header generation and adds detail headers to the global header.
libs/full/agas/CMakeLists.txt	Enables module header generation for the module.
libs/full/actions/include/hpx/actions/macros.hpp	New macro-only header for action registration and naming support.
libs/full/actions/include/hpx/actions/base_action.hpp	Removes inline macro definitions and includes the new macros.hpp.
libs/full/actions/CMakeLists.txt	Adds macros.hpp, marks it as MACRO_HEADERS, and enables module header generation.
libs/core/preprocessor/CMakeLists.txt	Disables module header generation and marks headers as macro headers.
libs/core/lcw_base/CMakeLists.txt	Enables module header generation for the module.
libs/core/gasnet_base/CMakeLists.txt	Enables module header generation for the module.
libs/core/async_sycl/CMakeLists.txt	Enables module header generation and adds a detail header to the global header.
components/process/include/hpx/components/process/server/child.hpp	Switches to unified hpx/modules/actions.hpp include.
components/iostreams/include/hpx/components/iostreams/server/output_stream.hpp	Switches to unified hpx/modules/actions.hpp include.
components/containers/unordered/include/hpx/components/containers/unordered/partition_unordered_map_component.hpp	Switches to unified hpx/modules/actions.hpp include.
components/containers/partitioned_vector/include/hpx/components/containers/partitioned_vector/partitioned_vector_component_decl.hpp	Switches to unified hpx/modules/actions.hpp include.
components/component_storage/include/hpx/components/component_storage/server/component_storage.hpp	Switches to unified hpx/modules/actions.hpp include.

[Copilot]

Pull request overview

This PR advances HPX’s C++20 modules transition by modularizing the actions module (notably separating macro-only registration facilities) and updating downstream code to include the unified hpx/modules/actions.hpp interface, while also enabling global header module generation across a broad set of dependent modules.

Changes:

• Extract action registration/name macros into hpx/actions/macros.hpp and wire it into module/global-header generation via MACRO_HEADERS.
• Switch many call sites from granular hpx/actions/... includes to #include <hpx/modules/actions.hpp>.
• Enable GLOBAL_HEADER_MODULE_GEN (and in some cases GLOBAL_HEADER_GEN / ADD_TO_GLOBAL_HEADER) across multiple modules to support module-header/BMI generation.

Reviewed changes

Copilot reviewed 82 out of 82 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
wrap/src/hpx_wrap.cpp	Minor type spelling change for exported app_name_libhpx_wrap declaration.
libs/full/segmented_algorithms/CMakeLists.txt	Enable global header module generation for the module.
libs/full/runtime_distributed/include/hpx/runtime_distributed/server/runtime_support.hpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/runtime_distributed/CMakeLists.txt	Enable global header module generation for the module.
libs/full/runtime_components/src/server/console_logging_server.cpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/runtime_components/src/server/console_error_sink_server.cpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/runtime_components/include/hpx/runtime_components/server/console_logging.hpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/runtime_components/include/hpx/runtime_components/server/console_error_sink.hpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/runtime_components/include/hpx/runtime_components/distributed_metadata_base.hpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/runtime_components/CMakeLists.txt	Enable global header module generation for the module.
libs/full/resiliency_distributed/CMakeLists.txt	Enable global header module generation for the module.
libs/full/performance_counters/src/server/base_performance_counter.cpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/performance_counters/src/counter_creators.cpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/performance_counters/include/hpx/performance_counters/server/symbol_namespace_counters.hpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/performance_counters/include/hpx/performance_counters/server/primary_namespace_counters.hpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/performance_counters/include/hpx/performance_counters/server/locality_namespace_counters.hpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/performance_counters/include/hpx/performance_counters/server/component_namespace_counters.hpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/performance_counters/include/hpx/performance_counters/server/base_performance_counter.hpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/performance_counters/CMakeLists.txt	Enable module global header generation and add specific detail header to global header.
libs/full/parcelset/src/parcel.cpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/parcelset/src/detail/parcel_await.cpp	Replace actions forward include with hpx/modules/actions.hpp.
libs/full/parcelset/include/hpx/parcelset/parcel.hpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/parcelset/CMakeLists.txt	Enable module global header generation and add selected detail headers.
libs/full/parcelports/CMakeLists.txt	Turn on global header generation and enable module global header generation.
libs/full/parcelport_tcp/CMakeLists.txt	Enable global header module generation for the module.
libs/full/parcelport_mpi/CMakeLists.txt	Enable global header module generation for the module.
libs/full/parcelport_lcw/CMakeLists.txt	Enable global header module generation for the module.
libs/full/parcelport_lci/CMakeLists.txt	Enable global header module generation for the module.
libs/full/parcelport_gasnet/CMakeLists.txt	Enable global header module generation for the module.
libs/full/lcos_distributed/include/hpx/lcos_distributed/server/channel.hpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/lcos_distributed/CMakeLists.txt	Enable global header module generation for the module.
libs/full/init_runtime/CMakeLists.txt	Turn on global header generation and enable module global header generation; add selected detail headers.
libs/full/include/include/hpx/include/components.hpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/include/include/hpx/include/actions.hpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/executors_distributed/include/hpx/executors_distributed/distribution_policy_executor.hpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/executors_distributed/CMakeLists.txt	Enable global header module generation for the module.
libs/full/distribution_policies/CMakeLists.txt	Enable global header module generation for the module.
libs/full/compute/CMakeLists.txt	Enable global header module generation and add selected detail header.
libs/full/components/CMakeLists.txt	Enable global header module generation for the module.
libs/full/collectives/src/latch.cpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/collectives/include/hpx/collectives/reduce_direct.hpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/collectives/include/hpx/collectives/fold.hpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/collectives/include/hpx/collectives/detail/latch.hpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/collectives/include/hpx/collectives/broadcast_direct.hpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/collectives/CMakeLists.txt	Enable global header module generation and add selected detail headers.
libs/full/checkpoint/CMakeLists.txt	Enable global header module generation for the module.
libs/full/async_distributed/src/continuation.cpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/async_distributed/src/base_lco.cpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/async_distributed/include/hpx/async_distributed/trigger_lco.hpp	Replace actions forward include with hpx/modules/actions.hpp.
libs/full/async_distributed/include/hpx/async_distributed/transfer_continuation_action.hpp	Replace multiple granular actions includes with hpx/modules/actions.hpp.
libs/full/async_distributed/include/hpx/async_distributed/put_parcel.hpp	Replace granular actions includes with hpx/modules/actions.hpp.
libs/full/async_distributed/include/hpx/async_distributed/detail/post.hpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/async_distributed/include/hpx/async_distributed/base_lco_with_value.hpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/async_distributed/include/hpx/async_distributed/base_lco.hpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/async_distributed/CMakeLists.txt	Enable global header module generation and add many detail headers to global header.
libs/full/async_colocated/CMakeLists.txt	Enable global header module generation and add selected detail headers.
libs/full/agas_base/include/hpx/agas_base/server/symbol_namespace.hpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/agas_base/include/hpx/agas_base/server/primary_namespace.hpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/agas_base/include/hpx/agas_base/server/locality_namespace.hpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/agas_base/include/hpx/agas_base/server/component_namespace.hpp	Replace granular actions include with hpx/modules/actions.hpp.
libs/full/agas_base/CMakeLists.txt	Enable global header module generation and add selected detail headers.
libs/full/agas/CMakeLists.txt	Enable global header module generation for the module.
libs/full/actions/include/hpx/actions/macros.hpp	New macro-only header for action registration/name macros.
libs/full/actions/include/hpx/actions/base_action.hpp	Remove macro definitions from this header and include the new hpx/actions/macros.hpp.
libs/full/actions/CMakeLists.txt	Add macros.hpp, expose it via MACRO_HEADERS, and enable global header module generation.
libs/core/threading_base/include/hpx/threading_base/thread_data.hpp	Formatting change for exported function declaration.
libs/core/preprocessor/CMakeLists.txt	Explicitly set GLOBAL_HEADER_MODULE_GEN OFF and add MACRO_HEADERS.
libs/core/lcw_base/CMakeLists.txt	Enable global header module generation for the module.
libs/core/gasnet_base/CMakeLists.txt	Enable global header module generation for the module.
libs/core/execution_base/include/hpx/execution_base/completion_signatures.hpp	Formatting change for exported tag type declaration.
libs/core/execution/include/hpx/execution/executors/execution_parameters_fwd.hpp	Formatting changes for exported tag type declarations.
libs/core/execution/include/hpx/execution/algorithms/when_all.hpp	Formatting change for exported tag type declaration.
libs/core/algorithms/include/hpx/parallel/container_algorithms/iota.hpp	Formatting change for tag_fallback_invoke declaration.
libs/core/algorithms/include/hpx/parallel/container_algorithms/find.hpp	Formatting changes for tag_fallback_invoke declarations.
libs/core/algorithms/include/hpx/parallel/algorithms/shift_right.hpp	Formatting change for tag_fallback_invoke declaration.
libs/core/algorithms/include/hpx/parallel/algorithms/shift_left.hpp	Formatting change for tag_fallback_invoke declaration.
libs/core/async_sycl/CMakeLists.txt	Enable global header module generation and add selected detail header.
components/process/include/hpx/components/process/server/child.hpp	Replace granular actions include with hpx/modules/actions.hpp.
components/iostreams/include/hpx/components/iostreams/server/output_stream.hpp	Replace granular actions include with hpx/modules/actions.hpp.
components/containers/unordered/include/hpx/components/containers/unordered/partition_unordered_map_component.hpp	Replace granular actions include with hpx/modules/actions.hpp.
components/containers/partitioned_vector/include/hpx/components/containers/partitioned_vector/partitioned_vector_component_decl.hpp	Replace granular actions include with hpx/modules/actions.hpp.
components/component_storage/include/hpx/components/component_storage/server/component_storage.hpp	Replace granular actions include with hpx/modules/actions.hpp.