/*- * BSD LICENSE * * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * Neither the name of Intel Corporation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _RTE_PER_LCORE_H_ #define _RTE_PER_LCORE_H_ /** * @file * * Per-lcore variables in RTE * * This file defines an API for instantiating per-lcore "global * variables" that are environment-specific. Note that in all * environments, a "shared variable" is the default when you use a * global variable. * * Parts of this are execution environment specific. */ #ifdef __cplusplus extern "C" { #endif #include /** * Macro to define a per lcore variable "var" of type "type", don't * use keywords like "static" or "volatile" in type, just prefix the * whole macro. */ #define RTE_DEFINE_PER_LCORE(type, name) \ __thread __typeof__(type) per_lcore_##name /** * Macro to declare an extern per lcore variable "var" of type "type" */ #define RTE_DECLARE_PER_LCORE(type, name) \ extern __thread __typeof__(type) per_lcore_##name /** * Read/write the per-lcore variable value */ #define RTE_PER_LCORE(name) (per_lcore_##name) #ifdef __cplusplus } #endif #endif /* _RTE_PER_LCORE_H_ */