Files
Xenia-Canary/src/xenia/base
Herman S. b3d8a21b72 [Threading] Add thread priority mapping with timer-driven quantum decay
And default ignore_thread_priorities to false.

Map Xenon's 0-31 priority range across all 5 host priority levels
instead of collapsing 0-17 into kNormal.

Use timer-driven quantum decay (~20ms period) matching Xenon's
60-quantum / 3-per-tick cycle to prevent starvation by gradually lowering
effective priority for non-real-time threads (< 18), piggybacking on the
existing 1ms timestamp timer.
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A lightweight cross-platform/compiler compatibility library.

This library presupposes C++11/14 support. As more compilers get C++14 it will assume that.

Other parts of the project use this to avoid creating spaghetti linkage. Code specific to the emulator should be kept out, as not all of the projects that depend on this need it.

Where possible, C++11/14 STL should be used instead of adding any code in here, and the code should be kept as small as possible (by reusing STL/etc). Third party dependencies should be kept to a minimum.

Target compilers:

  • MSVC++ 2013+
  • Clang 3.4+
  • GCC 4.8+.

Target platforms:

  • Windows 8+ (_win.cc suffix)
  • Mac OSX 10.9+ (_mac.cc suffix, falling back to _posix.cc)
  • Linux ? (_posix.cc suffix)

Avoid the use of platform-specific #ifdefs and instead try to put all platform-specific code in the appropriately suffixed cc files.