Shell of support for DAOS

CMakeLists.txt

@@ -123,6 +123,7 @@ adios_option(SZ        "Enable support for SZ transforms" AUTO)
 adios_option(MGARD     "Enable support for MGARD transforms" AUTO)
 adios_option(PNG       "Enable support for PNG transforms" AUTO)
 adios_option(MPI       "Enable support for MPI" AUTO)
+adios_option(Daos      "Enable support for Daosn" AUTO)
 adios_option(DataMan   "Enable support for DataMan" AUTO)
 adios_option(DataSpaces "Enable support for DATASPACES" AUTO)
 adios_option(SSC       "Enable support for SSC" AUTO)
@@ -149,7 +150,7 @@ if(ADIOS2_HAVE_MPI)
 endif()
 
 set(ADIOS2_CONFIG_OPTS
-    Blosc BZip2 ZFP SZ MGARD PNG MPI DataMan Table SSC SST DataSpaces ZeroMQ HDF5 HDF5_VOL IME Python Fortran SysVShMem Profiling Endian_Reverse
+    Blosc BZip2 ZFP SZ MGARD PNG MPI DataMan Daos Table SSC SST DataSpaces ZeroMQ HDF5 HDF5_VOL IME Python Fortran SysVShMem Profiling Endian_Reverse
 )
 GenerateADIOSHeaderConfig(${ADIOS2_CONFIG_OPTS})
 configure_file(

cmake/DetectOptions.cmake

@@ -329,6 +329,11 @@ if(ADIOS2_USE_SST AND NOT MSVC)
   endif()
 endif()
 
+find_package(Daos)
+  if(Daos_FOUND)
+    set(ADIOS2_HAVE_Daos TRUE)
+  endif()
+
 #SysV IPC
 if(UNIX)
   include(CheckSymbolExists)

cmake/FindDaos.cmake

@@ -0,0 +1,65 @@
+#------------------------------------------------------------------------------#
+# Distributed under the OSI-approved Apache License, Version 2.0.  See
+# accompanying file Copyright.txt for details.
+#------------------------------------------------------------------------------#
+#
+# FindDaos
+# -----------
+#
+# Try to find the Daos library
+#
+# This module defines the following variables:
+#
+#   Daos_FOUND        - System has Daos
+#   Daos_INCLUDE_DIRS - The Daos include directory
+#   Daos_LIBRARIES    - Link these to use Daos
+#
+# and the following imported targets:
+#   Daos::Daos - The core Daos library
+#
+# You can also set the following variable to help guide the search:
+#   Daos_ROOT - The install prefix for Daos containing the
+#                     include and lib folders
+#                     Note: this can be set as a CMake variable or an
+#                           environment variable.  If specified as a CMake
+#                           variable, it will override any setting specified
+#                           as an environment variable.
+
+if(CMAKE_VERSION VERSION_LESS 3.12)
+  if((NOT Daos_ROOT) AND (NOT (ENV{Daos_ROOT} STREQUAL "")))
+    set(Daos_ROOT "$ENV{Daos_ROOT}")
+  endif()
+  if(Daos_ROOT)
+    set(Daos_INCLUDE_OPTS HINTS ${Daos_ROOT}/include NO_DEFAULT_PATHS)
+    set(Daos_LIBRARY_OPTS
+      HINTS ${Daos_ROOT}/lib ${Daos_ROOT}/lib64
+      NO_DEFAULT_PATHS
+    )
+  endif()
+endif()
+
+
+message(STATUS "Daos_ROOT is is \"$ENV{Daos_ROOT}\"")
+find_path(Daos_INCLUDE_DIR daos_api.h ${Daos_INCLUDE_OPTS})
+find_library(Daos_LIBRARY libdaos.so ${Daos_LIBRARY_OPTS})
+find_library(DFS_LIBRARY libdfs.so ${Daos_LIBRARY_OPTS})
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Daos
+  FOUND_VAR Daos_FOUND
+  REQUIRED_VARS Daos_LIBRARY Daos_INCLUDE_DIR
+)
+
+if(Daos_FOUND)
+  set(Daos_INCLUDE_DIRS ${Daos_INCLUDE_DIR})
+  set(Daos_LIBRARIES ${Daos_LIBRARY} ${DFS_LIBRARY})
+  message(STATUS "Daos Libraries \"${Daos_LIBRARIES}\"")
+  if(NOT TARGET Daos::Daos)
+    add_library(Daos::Daos UNKNOWN IMPORTED)
+    set_target_properties(Daos::Daos PROPERTIES
+      IMPORTED_LOCATION             "${Daos_LIBRARY}"
+      INTERFACE_INCLUDE_DIRECTORIES "${Daos_INCLUDE_DIR}"
+      INTERFACE_LINK_LIBRARIES      "${Daos_LIBRARIES}"
+    )
+  endif()
+endif()

source/adios2/CMakeLists.txt

@@ -128,6 +128,11 @@ if(UNIX)
   target_sources(adios2_core PRIVATE toolkit/transport/file/FilePOSIX.cpp)
 endif()
 
+if(ADIOS2_HAVE_Daos)
+  target_sources(adios2_core PRIVATE toolkit/transport/file/FileDaos.cpp)
+  target_link_libraries(adios2_core PRIVATE Daos::Daos)
+endif()
+
 if(ADIOS2_HAVE_MPI)
   add_library(adios2_core_mpi
     core/IOMPI.cpp

source/adios2/toolkit/sst/CMakeLists.txt

@@ -27,6 +27,12 @@ if(ADIOS2_SST_HAVE_LIBFABRIC)
   endif()
 endif()
 
+if(ADIOS2_HAVE_Daos)
+  target_sources(sst PRIVATE dp/daos_dp.c)
+  target_link_libraries(sst PRIVATE Daos::Daos)
+  set(CMAKE_REQUIRED_INCLUDES ${daos_INCLUDE_DIRS})
+endif()
+
 if(ADIOS2_HAVE_ZFP)
   target_sources(sst PRIVATE cp/ffs_zfp.c)
   target_link_libraries(sst PRIVATE zfp::zfp)