Initial functional version of the third-party-copy library.

Only a minimal proof-of-concept to show we can get COPY intercepted
and working.

CMakeLists.txt

@@ -0,0 +1,40 @@
+
+cmake_minimum_required( VERSION 2.8 )
+project( xrootd-tpc )
+
+set( CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake )
+
+find_package( Xrootd REQUIRED )
+
+macro(use_cxx11)
+  if (CMAKE_VERSION VERSION_LESS "3.1")
+    if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
+      set (CMAKE_CXX_FLAGS "-std=gnu++11 ${CMAKE_CXX_FLAGS}")
+    endif ()
+  else ()
+    set (CMAKE_CXX_STANDARD 11)
+  endif ()
+endmacro(use_cxx11)
+use_cxx11()
+
+if( CMAKE_COMPILER_IS_GNUCXX )
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Werror" )
+endif()
+SET( CMAKE_SHARED_LINKER_FLAGS "-Wl,--no-undefined")
+SET( CMAKE_MODULE_LINKER_FLAGS "-Wl,--no-undefined")
+
+include (FindPkgConfig)
+pkg_check_modules(CURL REQUIRED libcurl)
+
+include_directories(${XROOTD_INCLUDES} ${CURL_INCLUDE_DIRS})
+
+add_library(XrdHttpTPC SHARED src/tpc.cpp)
+target_link_libraries(XrdHttpTPC -ldl ${XROOTD_UTILS_LIB} ${XROOTD_SERVER_LIB} ${XROOTD_HTTP_LIB} ${CURL_LIBRARIES})
+set_target_properties(XrdHttpTPC PROPERTIES OUTPUT_NAME "XrdHttpTPC-4" SUFFIX ".so" LINK_FLAGS "-Wl,--version-script=${CMAKE_SOURCE_DIR}/configs/export-lib-symbols")
+
+SET(LIB_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/lib" CACHE PATH "Install path for libraries")
+
+install(
+  TARGETS XrdHttpTPC
+  LIBRARY DESTINATION ${LIB_INSTALL_DIR}
+)

cmake/FindXrootd.cmake

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+
+FIND_PATH(XROOTD_INCLUDES XrdHttp/XrdHttpExtHandler.hh
+  HINTS
+  ${XROOTD_DIR}
+  $ENV{XROOTD_DIR}
+  /usr
+  /opt/xrootd/
+  PATH_SUFFIXES include/xrootd
+  PATHS /opt/xrootd
+)
+
+FIND_LIBRARY(XROOTD_UTILS_LIB XrdUtils
+  HINTS
+  ${XROOTD_DIR}
+  $ENV{XROOTD_DIR}
+  /usr
+  /opt/xrootd/
+  PATH_SUFFIXES lib
+)
+
+FIND_LIBRARY(XROOTD_SERVER_LIB XrdServer
+  HINTS
+  ${XROOTD_DIR}
+  $ENV{XROOTD_DIR}
+  /usr
+  /opt/xrootd/
+  PATH_SUFFIXES lib
+)
+
+FIND_LIBRARY(XROOTD_HTTP_LIB XrdHttp-4
+  HINTS
+  ${XROOTD_DIR}
+  $ENV{XROOTD_DIR}
+  /usr
+  /opt/xrootd/
+  PATH_SUFFIXES lib
+)
+
+INCLUDE(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(Xrootd DEFAULT_MSG XROOTD_UTILS_LIB XROOTD_HTTP_LIB XROOTD_INCLUDES)
+

configs/export-lib-symbols

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+{
+global:
+  XrdHttpGetExtHandler*;
+
+local:
+  *;
+};