server: removed unused atomics

Knot.files

@@ -20,7 +20,6 @@ patches/Makefile.am
 samples/Makefile.am
 src/Makefile.am
 src/common/array-sort.h
-src/common/atomic.h
 src/common/base32hex.c
 src/common/base32hex.h
 src/common/base64.c

src/Makefile.am

@@ -58,7 +58,6 @@ knsec3hash_SOURCES =				\
 # static: shared
 libknots_la_SOURCES =				\
 	common/array-sort.h			\
-	common/atomic.h				\
 	common/base32hex.c			\
 	common/base32hex.h			\
 	common/base64.c				\

src/common/atomic.h

-/*  Copyright (C) 2011 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-/*!
- * \file atomic.h
- *
- * \author Marek Vavrusa <marek.vavrusa@nic.cz>
- *
- * \brief Compatibility layer for atomic operations.
- *
- * Supports both __atomic and __sync legacy code.
- * Based on the code bits from queue by Rusty Russel <rusty@rustcorp.com.au>.
- *
- * \addtogroup common_lib
- * @{
- */
-
-#ifndef _KNOTD_ATOMIC_H_
-#define _KNOTD_ATOMIC_H_
-
-#include <stdbool.h>
-#if defined(__ATOMIC_SEQ_CST)  /* GCC4.7+ supports C11 atomics. */
-
-static inline unsigned int read_once(unsigned int *ptr, int memmodel)
-{
-	return __atomic_load_n(ptr, memmodel);
-}
-
-static inline void *read_ptr(void **ptr, int memmodel)
-{
-	return __atomic_load_n(ptr, memmodel);
-}
-
-static inline void store_once(unsigned int *ptr, unsigned int val, int memmodel)
-{
-	__atomic_store_n(ptr, val, memmodel);
-}
-
-static inline void store_ptr(void **ptr, void *val, int memmodel)
-{
-	__atomic_store_n(ptr, val, memmodel);
-}
-
-static inline void atomic_inc(unsigned int *val, int memmodel)
-{
-	__atomic_add_fetch(val, 1, memmodel);
-}
-
-static inline void atomic_dec(unsigned int *val, int memmodel)
-{
-	__atomic_sub_fetch(val, 1, memmodel);
-}
-
-static inline bool compare_and_swap(unsigned int *ptr,
-	                            unsigned int old, unsigned int nval, int memmodel)
-{
-	return __atomic_compare_exchange_n(ptr, &old, nval, false,
-					   memmodel, memmodel);
-}
-
-#else /* Legacy __sync interface */
-
-#if defined(__i386__) || defined(__i686__) || defined(__amd64__)
-static inline void mb(void) /* mfence compatible */
-{
-	asm volatile ("mfence" : : : "memory");
-}
-#else                       /* last resort for other architectures */
-static inline void mb(void)
-{
-	__sync_synchronize();
-}
-#endif
-
-/* Define as full barrier. */
-#undef __ATOMIC_SEQ_CST
-#undef __ATOMIC_RELAXED
-#undef __ATOMIC_ACQUIRE
-#undef __ATOMIC_RELEASE
-#define __ATOMIC_SEQ_CST 1
-#define __ATOMIC_RELAXED 1
-#define __ATOMIC_ACQUIRE 1
-#define __ATOMIC_RELEASE 0
-
-static inline unsigned int read_once(unsigned int *ptr, int memmodel)
-{
-	return __sync_fetch_and_add(ptr, 0);
-}
-
-static inline void *read_ptr(void **ptr, int memmodel)
-{
-	return __sync_fetch_and_add(ptr, 0);
-}
-
-static inline void store_once(unsigned int *ptr, unsigned int val, int memmodel)
-{
-	*(volatile unsigned int *)ptr = val;
-	if (memmodel)
-		mb();
-}
-
-static inline void store_ptr(void **ptr, void *val, int memmodel)
-{
-	*(void * volatile *)ptr = val;
-	if (memmodel)
-		mb();
-}
-
-static inline void atomic_inc(unsigned int *val, int memmodel)
-{
-	__sync_fetch_and_add(val, 1);
-}
-
-static inline void atomic_dec(unsigned int *val, int memmodel)
-{
-	__sync_fetch_and_sub(val, 1);
-}
-
-static inline bool compare_and_swap(unsigned int *ptr,
-                                    unsigned int old, unsigned int nval, int memmodel)
-{
-	return __sync_bool_compare_and_swap(ptr, old, nval);
-}
-
-#endif
-
-#endif /* _KNOTD_ATOMIC_H_ */
-
-/*! @} */