I'm crazy so I will add this... pthread rwlock wrappers, along with autoconf stuff...

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@46935 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/configure b/configure
index bd863f7..d93af0c 100755 (executable)
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.ac Revision: 46846 .
+# From configure.ac Revision: 46848 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.60a.
 #
@@ -14158,6 +14158,179 @@ fi
 done
 
 
+
+    if test "x${PBX_PTHREAD_RWLOCK_INITIALIZER}" != "x1" -a "${USE_PTHREAD_RWLOCK_INITIALIZER}" != "no"; then
+       { echo "$as_me:$LINENO: checking for PTHREAD_RWLOCK_INITIALIZER in pthread.h" >&5
+echo $ECHO_N "checking for PTHREAD_RWLOCK_INITIALIZER in pthread.h... $ECHO_C" >&6; }
+       saved_cppflags="${CPPFLAGS}"
+       if test "x${PTHREAD_RWLOCK_INITIALIZER_DIR}" != "x"; then
+           PTHREAD_RWLOCK_INITIALIZER_INCLUDE= "-I${PTHREAD_RWLOCK_INITIALIZER_DIR}/include"
+       fi
+       CPPFLAGS="${CPPFLAGS} ${PTHREAD_RWLOCK_INITIALIZER_INCLUDE}"
+
+       cat >conftest.$ac_ext <<_ACEOF
+ /* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <pthread.h>
+int
+main ()
+{
+int foo = PTHREAD_RWLOCK_INITIALIZER;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+        { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+  { (case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+        { ac_try='test -s conftest.$ac_objext'
+  { (case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+     { echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+               PBX_PTHREAD_RWLOCK_INITIALIZER=1
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_PTHREAD_RWLOCK_INITIALIZER 1
+_ACEOF
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_PTHREAD_RWLOCK_INITIALIZER_VERSION
+_ACEOF
+
+
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+              { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+       CPPFLAGS="${saved_cppflags}"
+    fi
+
+
+    if test "x${PBX_PTHREAD_RWLOCK_PREFER_WRITER_NP}" != "x1" -a "${USE_PTHREAD_RWLOCK_PREFER_WRITER_NP}" != "no"; then
+       { echo "$as_me:$LINENO: checking for PTHREAD_RWLOCK_PREFER_WRITER_NP in pthread.h" >&5
+echo $ECHO_N "checking for PTHREAD_RWLOCK_PREFER_WRITER_NP in pthread.h... $ECHO_C" >&6; }
+       saved_cppflags="${CPPFLAGS}"
+       if test "x${PTHREAD_RWLOCK_PREFER_WRITER_NP_DIR}" != "x"; then
+           PTHREAD_RWLOCK_PREFER_WRITER_NP_INCLUDE= "-I${PTHREAD_RWLOCK_PREFER_WRITER_NP_DIR}/include"
+       fi
+       CPPFLAGS="${CPPFLAGS} ${PTHREAD_RWLOCK_PREFER_WRITER_NP_INCLUDE}"
+
+       cat >conftest.$ac_ext <<_ACEOF
+ /* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <pthread.h>
+int
+main ()
+{
+int foo = PTHREAD_RWLOCK_PREFER_WRITER_NP;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+        { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+  { (case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+        { ac_try='test -s conftest.$ac_objext'
+  { (case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+     { echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+               PBX_PTHREAD_RWLOCK_PREFER_WRITER_NP=1
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_PTHREAD_RWLOCK_PREFER_WRITER_NP 1
+_ACEOF
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_PTHREAD_RWLOCK_PREFER_WRITER_NP_VERSION
+_ACEOF
+
+
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+              { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+       CPPFLAGS="${saved_cppflags}"
+    fi
+
+
 { echo "$as_me:$LINENO: checking for compiler atomic operations" >&5
 echo $ECHO_N "checking for compiler atomic operations... $ECHO_C" >&6; }
 cat >conftest.$ac_ext <<_ACEOF

diff --git a/configure.ac b/configure.ac
index 106049d..33875dc 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -267,6 +267,9 @@ AC_CHECK_FUNCS([funopen fopencookie])
 # some systems already have gethostbyname_r so we don't need to build ours in main/utils.c
 AC_CHECK_FUNCS([gethostbyname_r])
 
+AST_C_DEFINE_CHECK([PTHREAD_RWLOCK_INITIALIZER], [PTHREAD_RWLOCK_INITIALIZER], [pthread.h])
+AST_C_DEFINE_CHECK([PTHREAD_RWLOCK_PREFER_WRITER_NP], [PTHREAD_RWLOCK_PREFER_WRITER_NP], [pthread.h])
+
 AC_MSG_CHECKING(for compiler atomic operations)
 AC_LINK_IFELSE(
 AC_LANG_PROGRAM([], [int foo1; int foo2 = __sync_fetch_and_add(&foo1, 1);]),

diff --git a/include/asterisk/autoconfig.h.in b/include/asterisk/autoconfig.h.in
index 81e008a..8bec137 100644 (file)
--- a/include/asterisk/autoconfig.h.in
+++ b/include/asterisk/autoconfig.h.in
@@ -316,6 +316,18 @@
 /* Define to indicate the ${PRI_DESCRIP} library version */
 #undef HAVE_PRI_VERSION
 
+/* Define if your system has the PTHREAD_RWLOCK_INITIALIZER headers. */
+#undef HAVE_PTHREAD_RWLOCK_INITIALIZER
+
+/* Define PTHREAD_RWLOCK_INITIALIZER headers version */
+#undef HAVE_PTHREAD_RWLOCK_INITIALIZER_VERSION
+
+/* Define if your system has the PTHREAD_RWLOCK_PREFER_WRITER_NP headers. */
+#undef HAVE_PTHREAD_RWLOCK_PREFER_WRITER_NP
+
+/* Define PTHREAD_RWLOCK_PREFER_WRITER_NP headers version */
+#undef HAVE_PTHREAD_RWLOCK_PREFER_WRITER_NP_VERSION
+
 /* Define to 1 if the system has the type `ptrdiff_t'. */
 #undef HAVE_PTRDIFF_T
 

diff --git a/include/asterisk/lock.h b/include/asterisk/lock.h
index bcd2fda..b329fc1 100644 (file)
--- a/include/asterisk/lock.h
+++ b/include/asterisk/lock.h
@@ -614,6 +614,70 @@ static void  __attribute__ ((destructor)) fini_##mutex(void) \
 #define pthread_create __use_ast_pthread_create_instead__
 #endif
 
+typedef pthread_rwlock_t ast_rwlock_t;
+
+static inline int ast_rwlock_init(ast_rwlock_t *prwlock)
+{
+       pthread_rwlockattr_t attr;
+
+       pthread_rwlockattr_init(&attr);
+
+#ifdef HAVE_PTHREAD_RWLOCK_PREFER_WRITER_NP
+       pthread_rwlockattr_setkind_np(&attr, PTHREAD_RWLOCK_PREFER_WRITER_NP);
+#endif
+
+       return pthread_rwlock_init(prwlock, &attr);
+}
+
+static inline int ast_rwlock_destroy(ast_rwlock_t *prwlock)
+{
+       return pthread_rwlock_destroy(prwlock);
+}
+
+static inline int ast_rwlock_unlock(ast_rwlock_t *prwlock)
+{
+       return pthread_rwlock_unlock(prwlock);
+}
+
+static inline int ast_rwlock_rdlock(ast_rwlock_t *prwlock)
+{
+       return pthread_rwlock_rdlock(prwlock);
+}
+
+static inline int ast_rwlock_tryrdlock(ast_rwlock_t *prwlock)
+{
+       return pthread_rwlock_tryrdlock(prwlock);
+}
+
+static inline int ast_rwlock_wrlock(ast_rwlock_t *prwlock)
+{
+       return pthread_rwlock_wrlock(prwlock);
+}
+
+static inline int ast_rwlock_trywrlock(ast_rwlock_t *prwlock)
+{
+       return pthread_rwlock_trywrlock(prwlock);
+}
+
+/* Statically declared read/write locks */
+
+#ifndef HAVE_PTHREAD_RWLOCK_INITIALIZER
+#define __AST_RWLOCK_DEFINE(scope, rwlock) \
+static void  __attribute__ ((constructor)) init_##rwlock(void) \
+{ \
+        ast_rwlock_init(&rwlock); \
+} \
+static void  __attribute__ ((destructor)) fini_##rwlock(void) \
+{ \
+        ast_mutex_destroy(&rwlock); \
+}
+#else
+#define __AST_RWLOCK_DEFINE(scope, rwlock) \
+        scope ast_rwlock_t rwlock = AST_RWLOCK_INIT_VALUE
+#endif
+
+#define AST_RWLOCK_DEFINE_STATIC(rwlock) __AST_RWLOCK_DEFINE(static, rwlock)
+
 /*
  * Initial support for atomic instructions.
  * For platforms that have it, use the native cpu instruction to