1 files changed, 206 insertions, 0 deletions

diff --git a/libraries/ecore/m4/efl_threads.m4 b/libraries/ecore/m4/efl_threads.m4
new file mode 100644
index 0000000..33d15a3
--- /dev/null
+++ b/libraries/ecore/m4/efl_threads.m4
@@ -0,0 +1,206 @@
+dnl Copyright (C) 2010 Vincent Torri <vtorri at univ-evry dot fr>
+dnl rwlock code added by Mike Blumenkrantz <mike at zentific dot com>
+dnl This code is public domain and can be freely used or copied.
+
+dnl Macro that check if POSIX or Win32 threads library is available or not.
+
+dnl Usage: EFL_CHECK_THREADS(ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
+dnl Call AC_SUBST(EFL_PTHREAD_CFLAGS)
+dnl Call AC_SUBST(EFL_PTHREAD_LIBS)
+dnl Defines EFL_HAVE_POSIX_THREADS or EFL_HAVE_WIN32_THREADS, and EFL_HAVE_THREADS
+
+AC_DEFUN([EFL_CHECK_THREADS],
+[
+
+dnl configure option
+
+AC_ARG_ENABLE([posix-threads],
+   [AC_HELP_STRING([--disable-posix-threads], [enable POSIX threads code @<:@default=auto@:>@])],
+   [
+    if test "x${enableval}" = "xyes" ; then
+       _efl_enable_posix_threads="yes"
+    else
+       _efl_enable_posix_threads="no"
+    fi
+   ],
+   [_efl_enable_posix_threads="auto"])
+
+AC_MSG_CHECKING([whether to build POSIX threads code])
+AC_MSG_RESULT([${_efl_enable_posix_threads}])
+
+AC_ARG_ENABLE([win32-threads],
+   [AC_HELP_STRING([--disable-win32-threads], [enable Win32 threads code @<:@default=no@:>@])],
+   [
+    if test "x${enableval}" = "xyes" ; then
+       _efl_enable_win32_threads="yes"
+    else
+       _efl_enable_win32_threads="no"
+    fi
+   ],
+   [_efl_enable_win32_threads="no"])
+
+AC_MSG_CHECKING([whether to build Windows threads code])
+AC_MSG_RESULT([${_efl_enable_win32_threads}])
+
+dnl
+dnl * no  + no
+dnl * yes + no  : win32: error,    other : pthread
+dnl * yes + yes : win32 : wthread, other : pthread
+dnl * no  + yes : win32 : wthread, other : error
+
+if  test "x${_efl_enable_posix_threads}" = "xyes" && test "x${_efl_enable_win32_threads}" = "xyes" ; then
+   case "$host_os" in
+      mingw*)
+         _efl_enable_posix_threads=no
+         ;;
+      *)
+         _efl_enable_win32_threads=no
+         ;;
+   esac
+fi
+
+if  test "x${_efl_enable_win32_threads}" = "xyes" ; then
+   case "$host_os" in
+      mingw*)
+         ;;
+      *)
+         AC_MSG_ERROR([Win32 threads support requested but non Windows system found.])
+         ;;
+   esac
+fi
+
+if  test "x${_efl_enable_posix_threads}" = "xyes" ; then
+   case "$host_os" in
+      mingw*)
+         AC_MSG_ERROR([POSIX threads support requested but Windows system found.])
+         ;;
+      *)
+         ;;
+   esac
+fi
+
+dnl check if the compiler supports POSIX threads
+
+case "$host_os" in
+   mingw*)
+      ;;
+   solaris*)
+      _efl_threads_cflags="-mt"
+      _efl_threads_libs="-mt"
+      ;;
+   *)
+      _efl_threads_cflags="-pthread"
+      _efl_threads_libs="-pthread"
+      ;;
+esac
+
+_efl_have_posix_threads="no"
+_efl_have_win32_threads="no"
+
+if test "x${_efl_enable_posix_threads}" = "xyes" || test "x${_efl_enable_posix_threads}" = "xauto" ; then
+
+   SAVE_CFLAGS=${CFLAGS}
+   CFLAGS="${CFLAGS} ${_efl_threads_cflags}"
+   SAVE_LIBS=${LIBS}
+   LIBS="${LIBS} ${_efl_threads_libs}"
+   AC_LINK_IFELSE(
+      [AC_LANG_PROGRAM([[
+#include <pthread.h>
+                       ]],
+                       [[
+pthread_t id;
+id = pthread_self();
+                       ]])],
+      [_efl_have_posix_threads="yes"],
+      [_efl_have_posix_threads="no"])
+   CFLAGS=${SAVE_CFLAGS}
+   LIBS=${SAVE_LIBS}
+
+fi
+
+AC_MSG_CHECKING([whether system support POSIX threads])
+AC_MSG_RESULT([${_efl_have_posix_threads}])
+if test "$x{_efl_enable_posix_threads}" = "xyes" && test "x${_efl_have_posix_threads}" = "xno"; then
+   AC_MSG_ERROR([POSIX threads support requested but not found.])
+fi
+
+EFL_PTHREAD_CFLAGS=""
+EFL_PTHREAD_LIBS=""
+if test "x${_efl_have_posix_threads}" = "xyes" ; then
+   EFL_PTHREAD_CFLAGS=${_efl_threads_cflags}
+   EFL_PTHREAD_LIBS=${_efl_threads_libs}
+fi
+
+AC_SUBST(EFL_PTHREAD_CFLAGS)
+AC_SUBST(EFL_PTHREAD_LIBS)
+
+_efl_enable_debug_threads="no"
+AC_ARG_ENABLE([debug-threads],
+   [AC_HELP_STRING([--enable-debug-threads], [disable assert when you forgot to call eina_threads_init])],
+   [_efl_enable_debug_threads="${enableval}"])
+
+have_debug_threads="no"
+if test "x${_efl_have_posix_threads}" = "xyes" -a "x${_efl_enable_debug_threads}" = "xyes"; then
+   have_debug_threads="yes"
+   AC_DEFINE([EFL_DEBUG_THREADS], [1], [Assert when forgot to call eina_threads_init])
+fi
+
+if test "x${_efl_have_posix_threads}" = "xyes" ; then
+   AC_DEFINE([EFL_HAVE_POSIX_THREADS], [1], [Define to mention that POSIX threads are supported])
+fi
+
+if test "x${_efl_enable_win32_threads}" = "xyes" ; then
+   _efl_have_win32_threads="yes"
+   AC_DEFINE([EFL_HAVE_WIN32_THREADS], [1], [Define to mention that Win32 threads are supported])
+fi
+
+if test "x${_efl_have_posix_threads}" = "xyes" || test "x${_efl_have_win32_threads}" = "xyes" ; then
+   AC_DEFINE([EFL_HAVE_THREADS], [1], [Define to mention that POSIX or Win32 threads are supported])
+fi
+
+AS_IF([test "x$_efl_have_posix_threads" = "xyes" || test "x$_efl_have_win32_threads" = "xyes"], [$1], [$2])
+])
+
+dnl Usage: EFL_CHECK_SPINLOCK(ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
+dnl Defines EFL_HAVE_POSIX_THREADS_SPINLOCK
+AC_DEFUN([EFL_CHECK_SPINLOCK],
+[
+
+dnl check if the compiler supports pthreads spinlock
+
+_efl_have_posix_threads_spinlock="no"
+
+if test "x${_efl_have_posix_threads}" = "xyes" ; then
+
+   SAVE_CFLAGS=${CFLAGS}
+   CFLAGS="${CFLAGS} ${EFL_PTHREAD_CFLAGS}"
+   SAVE_LIBS=${LIBS}
+   LIBS="${LIBS} ${EFL_PTHREAD_LIBS}"
+   AC_LINK_IFELSE(
+      [AC_LANG_PROGRAM([[
+#include <pthread.h>
+                       ]],
+                       [[
+pthread_spinlock_t lock;
+int res;
+res = pthread_spin_init(&lock, PTHREAD_PROCESS_PRIVATE);
+                       ]])],
+      [_efl_have_posix_threads_spinlock="yes"],
+      [_efl_have_posix_threads_spinlock="no"])
+   CFLAGS=${SAVE_CFLAGS}
+   LIBS=${SAVE_LIBS}
+
+fi
+
+AC_MSG_CHECKING([whether to build POSIX threads spinlock code])
+AC_MSG_RESULT([${_efl_have_posix_threads_spinlock}])
+if test "x${_efl_enable_posix_threads}" = "xyes" && test "x${_efl_have_posix_threads_spinlock}" = "xno" ; then
+   AC_MSG_WARN([POSIX threads support requested but spinlocks are not supported])
+fi
+
+if test "x${_efl_have_posix_threads_spinlock}" = "xyes" ; then
+   AC_DEFINE([EFL_HAVE_POSIX_THREADS_SPINLOCK], [1], [Define to mention that POSIX threads spinlocks are supported])
+fi
+AS_IF([test "x$_efl_have_posix_threads_spinlock" = "xyes"], [$1], [$2])
+])
+