src/git/thread-utils.h

   1 #ifndef INCLUDE_git_thread_utils_h__
   2 #define INCLUDE_git_thread_utils_h__
   3 /*
   4  * How TLS works is compiler+platform dependant
   5  * Sources: http://en.wikipedia.org/wiki/Thread-Specific_Storage
   6  *          http://predef.sourceforge.net/precomp.html
   7  */
   8 #define GIT_HAS_TLS 1
   9 #if defined(__GNUC__) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || \
  10         defined(__xlc__) || defined(__xlC__)
  11 # define GIT_TLS __thread
  12 #elif defined(__INTEL_COMPILER)
  13 # if defined(_WIN32) || defined(_WIN32_CE)
  14 #  define GIT_TLS __declspec(thread)
  15 # else
  16 #  define GIT_TLS __thread
  17 # endif
  18 #elif defined(_WIN32) || defined(_WIN32_CE) || defined(__BORLANDC__)
  19 # define GIT_TLS __declspec(thread)
  20 #else
  21 # undef GIT_HAS_TLS
  22 # define GIT_TLS /* nothing: tls vars are thread-global */
  23 #endif
  24
  25 /* sparse doesn't grok thread-local variables */
  26 #if defined(__CHECKER__)
  27 # undef GIT_HAS_TLS
  28 # undef GIT_TLS
  29 # define GIT_TLS
  30 #endif
  31
  32 #endif /* INCLUDE_git_thread_utils_h__ */