New/improved support for initialization and finalization routines in …

…ThreadPool (jrmadsen#19)

* clang-tidy fixes

* Improvements to ThreadPool constructors

* Support for finalization functions in ThreadPool

* Bumped version

* PTL_INSTALL_HEADERS + PTL_INSTALL_CONFIG

Springclean CMake scripts and developer/client build/use interfaces (j…

…rmadsen#13)

* Modernize minimize cmake/project settings

- Use version range for minimum CMake version

  Follow recommendation in:

  https://cliutils.gitlab.io/modern-cmake/chapters/basics.html

  to support current 3.8 minimum whilst always setting policy settings
  to those of the running version.

- Don't set policies which will automatically be NEW

- Let CMake fully handle versions without caching

  Caching allows user to set version values, but these are not
  user configurable values.

  Let CMake handle the setting of PTL_... and PROJECT_... version
  variables through the primary call to project() after version
  info has been read from VERSION file.

* Simplify PTL build/install with modern CMake tools

- Use modern CMake style of lowercase commands and empty else(),
  end...() commands
- Remove all unused custom functions and macros
  - Refactor remaining functionality into dedicated modules
- Remove obsolete/duplicate options and those that only apply to
  examples
- Only report relevant enabled features
  - Not possible to reliably report flags as these can change over
    the build tree
- Do not cache PTL_INSTALL_... variables, but allow override when
  PTL is a subproject, otherwise defaulting to the CMAKE_INSTALL_...
  equivalents
- Only expose ptl_add_option options when PTL is the primary project
  - parent projects can still set these manually
- Use compile features to export CXX Standard
  - Add cxx_std_<VERSION> to all targets built through ptl_build_library
    to ensure this usage requirement is propagated to clients.
  - Remove CMAKE_CXX_EXTENSIONS and CMAKE_CXX_STANDARD_REQUIRED from the
    cache as these should not be set by builders of the project.
  - Remove CMAKE_CXX_STANDARD setting in config files as the targets
    propagate this requirement.
- Do not default CMAKE_INSTALL_RPATH_USE_LINK_PATH setting
  This variable should be left up to the builder/installer as it
  hardcodes RPATH information that may not be wanted.
- Create header to propgate public preproc symbols
  PTL can be built with support for TBB and locks in user queues.
  These are enabled in code via #ifdef blocks on preprocessor symbols
  passed through -D flags. However, the choice is hardcoded at build
  time as it affects the API and ABI of the resultant PTL libraries.

  Promote TBB/Lock symbols to configured values in a new Config.hh file
  generated by CMake. Include this file in PTL code depending on the
  symbols. Install it along side other PTL headers.

  Remove setting of -D flags for TBB and locks from both public and
  private compile definitions.
- Update FindTBB module using version from VTK/Ogre, adding FPHSA support
- Link directly to Threads and TBB targets for simplicity and clarity
- Rationalize CMake/Build settings
  - Prefer use of CMAKE_.._FLAGS for passing sanitizer/coverage flags
    down the build tree. Whilst use of targets/usage requirements is
    preferred in modern CMake, it may not be the simplest solution for
    things like compiler flags that are pure BUILD_INTERFACE. Propagating
    flags through targets may result in these appearing in the install
    interface for the project. This may be confusing, or at worst, lead
    to unexpected behaviour.

    NB: Once CMake >= 3.13 is required, add_{compile,link}_options can
    be used instead.
- Unify build/install CMake config files
  - Handle primary target difference between build/install trees
    transparently via the PTLTargets.cmake file
  - Only use component arguments to find_package to decide on default
    for static/shared linking. Use of BUILD_{STATIC/SHARED}_LIBS may
    not result in the behaviour intended by the client project.
- Generate and install pkg-config file for PTL

* Make examples work with simplified CMake system

Comment out GPU example as it cannot currently build either with
updated CMake scripts or those on master

* Ensure build paths do not appear in installed CMake scripts

Set path to custom FindTBB module using a @PACKAGE_...@ variable
to that it will not export build tree information to the install
tree.

* Point CI Workflow to correct examples dir

* Fix typo + install libasan in CI scripts

* Removed libasan install + export sanitizer flags when address is used

* Use INTERFACE_LINK_OPTIONS instead of target_link_options

* export sanitizer link flags when not leak

* PTL_USE_ARCH removal from pyctest-runner

* Bumped version to 2.1.0

* Minor formatting updates

Co-authored-by: Jonathan R. Madsen <[email protected]>

warning fixes + wait() for tasks (jrmadsen#12)

- removed unused numActThreads
- wait() member function for tasks

Fixed Version.hh header output location in build-tree (jrmadsen#10)

Make PTLConfig.cmake reproducible (jrmadsen#9)

* Make PTLConfig.cmake reproducible

- Build time and build folder are not reflected in installed PTLConfig.cmake
- Update VERSION to 1.0.1

Update version to 1.0.0 + installation fixes (jrmadsen#7)

* Installation fixes

- Updated version to 1.0.0
- Updated travis slightly
- Version.hh
- formatted pyctest-runner.py
- fix for timer operator<<
- travis test for installation

Added <memory> to ThreadData.hh

Merge pull request jrmadsen#2 from carterbox/master

Build for WIN64