X-Git-Url: https://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=urcu%2Ftls-compat.h;fp=urcu%2Ftls-compat.h;h=0000000000000000000000000000000000000000;hp=8ac1ea0615ddc2eb91ee51e9e15b89bd094d4c81;hb=6893800a4d1cc14dff0395ddcd660a5138db183d;hpb=a59f39055b5ecb77b68cf78b9839aa9e8e4ec332

diff --git a/urcu/tls-compat.h b/urcu/tls-compat.h
deleted file mode 100644
index 8ac1ea0..0000000
--- a/urcu/tls-compat.h
+++ /dev/null
@@ -1,140 +0,0 @@
-#ifndef _URCU_TLS_COMPAT_H
-#define _URCU_TLS_COMPAT_H
-
-/*
- * urcu/tls-compat.h
- *
- * Userspace RCU library - Thread-Local Storage Compatibility Header
- *
- * Copyright 2012 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <stdlib.h>
-#include <urcu/config.h>
-#include <urcu/compiler.h>
-#include <urcu/arch.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#ifdef CONFIG_RCU_TLS	/* Based on ax_tls.m4 */
-
-/*
- * Hint: How to define/declare TLS variables of compound types
- *       such as array or function pointers?
- *
- * Answer: Use typedef to assign a type_name to the compound type.
- * Example: Define a TLS variable which is an int array with len=4:
- *
- * 	typedef int my_int_array_type[4];
- * 	DEFINE_URCU_TLS(my_int_array_type, var_name);
- *
- * Another example:
- * 	typedef void (*call_rcu_flavor)(struct rcu_head *, XXXX);
- * 	DECLARE_URCU_TLS(call_rcu_flavor, p_call_rcu);
- *
- * NOTE: URCU_TLS() is NOT async-signal-safe, you can't use it
- * inside any function which can be called from signal handler.
- *
- * But if pthread_getspecific() is async-signal-safe in your
- * platform, you can make URCU_TLS() async-signal-safe via:
- * ensuring the first call to URCU_TLS() of a given TLS variable of
- * all threads is called earliest from a non-signal handler function.
- *
- * Example: In any thread, the first call of URCU_TLS(rcu_reader)
- * is called from rcu_register_thread(), so we can ensure all later
- * URCU_TLS(rcu_reader) in any thread is async-signal-safe.
- *
- * Moreover, URCU_TLS variables should not be touched from signal
- * handlers setup with with sigaltstack(2).
- */
-
-# define DECLARE_URCU_TLS(type, name)	\
-	CONFIG_RCU_TLS type name
-
-# define DEFINE_URCU_TLS(type, name)	\
-	CONFIG_RCU_TLS type name
-
-# define URCU_TLS(name)		(name)
-
-#else /* #ifndef CONFIG_RCU_TLS */
-
-/*
- * The *_1() macros ensure macro parameters are expanded.
- */
-
-# include <pthread.h>
-
-struct urcu_tls {
-	pthread_key_t key;
-	pthread_mutex_t init_mutex;
-	int init_done;
-};
-
-# define DECLARE_URCU_TLS_1(type, name)				\
-	type *__tls_access_ ## name(void)
-# define DECLARE_URCU_TLS(type, name)				\
-	DECLARE_URCU_TLS_1(type, name)
-
-/*
- * Note: we don't free memory at process exit, since it will be dealt
- * with by the OS.
- */
-# define DEFINE_URCU_TLS_1(type, name)				\
-	type *__tls_access_ ## name(void)			\
-	{							\
-		static struct urcu_tls __tls_ ## name = {	\
-			.init_mutex = PTHREAD_MUTEX_INITIALIZER,\
-			.init_done = 0,				\
-		};						\
-		void *__tls_p;					\
-		if (!__tls_ ## name.init_done) {		\
-			/* Mutex to protect concurrent init */	\
-			pthread_mutex_lock(&__tls_ ## name.init_mutex); \
-			if (!__tls_ ## name.init_done) {	\
-				(void) pthread_key_create(&__tls_ ## name.key, \
-					free);			\
-				cmm_smp_wmb();	/* create key before write init_done */ \
-				__tls_ ## name.init_done = 1;	\
-			}					\
-			pthread_mutex_unlock(&__tls_ ## name.init_mutex); \
-		}						\
-		cmm_smp_rmb();	/* read init_done before getting key */ \
-		__tls_p = pthread_getspecific(__tls_ ## name.key); \
-		if (caa_unlikely(__tls_p == NULL)) {		\
-			__tls_p = calloc(1, sizeof(type));	\
-			(void) pthread_setspecific(__tls_ ## name.key,	\
-				__tls_p);			\
-		}						\
-		return __tls_p;					\
-	}
-
-# define DEFINE_URCU_TLS(type, name)				\
-	DEFINE_URCU_TLS_1(type, name)
-
-# define URCU_TLS_1(name)	(*__tls_access_ ## name())
-
-# define URCU_TLS(name)		URCU_TLS_1(name)
-
-#endif	/* #else #ifndef CONFIG_RCU_TLS */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _URCU_TLS_COMPAT_H */