From 1c8c0ec503e58a4e769826507ca04c2f40890db5 Mon Sep 17 00:00:00 2001 From: Christian Kern Date: Thu, 5 Nov 2015 15:33:47 +0100 Subject: [PATCH] remove mtapi spinlock implementation --- mtapi_c/src/embb_mtapi_spinlock_t.c | 70 ---------------------------------------------------------------------- mtapi_c/src/embb_mtapi_spinlock_t.h | 55 ------------------------------------------------------- 2 files changed, 125 deletions(-) delete mode 100644 mtapi_c/src/embb_mtapi_spinlock_t.c delete mode 100644 mtapi_c/src/embb_mtapi_spinlock_t.h diff --git a/mtapi_c/src/embb_mtapi_spinlock_t.c b/mtapi_c/src/embb_mtapi_spinlock_t.c deleted file mode 100644 index 0b3efa9..0000000 --- a/mtapi_c/src/embb_mtapi_spinlock_t.c +++ /dev/null @@ -1,70 +0,0 @@ -/* - * Copyright (c) 2014-2015, Siemens AG. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * - * 2. 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. - * - * 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 HOLDER 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. - */ - -#include - -void embb_mtapi_spinlock_initialize(embb_mtapi_spinlock_t * that) { - embb_atomic_store_int(that, 0); -} - -void embb_mtapi_spinlock_finalize(embb_mtapi_spinlock_t * that) { - embb_atomic_store_int(that, 0); -} - -embb_atomic_int embb_mtapi_spinlock_spins = { 0 }; - -mtapi_boolean_t embb_mtapi_spinlock_acquire(embb_mtapi_spinlock_t * that) { - int expected = 0; - while (0 == embb_atomic_compare_and_swap_int(that, &expected, 1)) { - /* empty */ - embb_atomic_fetch_and_add_int(&embb_mtapi_spinlock_spins, 1); - expected = 0; - } - return MTAPI_TRUE; -} - -mtapi_boolean_t embb_mtapi_spinlock_acquire_with_spincount( - embb_mtapi_spinlock_t * that, - mtapi_uint_t max_spin_count) { - int expected = 0; - mtapi_uint_t spin_count = max_spin_count; - while (0 == embb_atomic_compare_and_swap_int(that, &expected, 1)) { - embb_atomic_fetch_and_add_int(&embb_mtapi_spinlock_spins, 1); - spin_count--; - if (0 == spin_count) { - return MTAPI_FALSE; - } - expected = 0; - } - - return MTAPI_TRUE; -} - -mtapi_boolean_t embb_mtapi_spinlock_release(embb_mtapi_spinlock_t * that) { - int expected = 1; - return embb_atomic_compare_and_swap_int(that, &expected, 0) ? - MTAPI_TRUE : MTAPI_FALSE; -} diff --git a/mtapi_c/src/embb_mtapi_spinlock_t.h b/mtapi_c/src/embb_mtapi_spinlock_t.h deleted file mode 100644 index 012cb1d..0000000 --- a/mtapi_c/src/embb_mtapi_spinlock_t.h +++ /dev/null @@ -1,55 +0,0 @@ -/* - * Copyright (c) 2014-2015, Siemens AG. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * - * 2. 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. - * - * 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 HOLDER 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 MTAPI_C_SRC_EMBB_MTAPI_SPINLOCK_T_H_ -#define MTAPI_C_SRC_EMBB_MTAPI_SPINLOCK_T_H_ - -#include -#include - -#ifdef __cplusplus -extern "C" { -#endif - - -/* ---- CLASS DECLARATION -------------------------------------------------- */ - -typedef embb_atomic_int embb_mtapi_spinlock_t; - -void embb_mtapi_spinlock_initialize(embb_mtapi_spinlock_t * that); -void embb_mtapi_spinlock_finalize(embb_mtapi_spinlock_t * that); -mtapi_boolean_t embb_mtapi_spinlock_acquire(embb_mtapi_spinlock_t * that); -mtapi_boolean_t embb_mtapi_spinlock_acquire_with_spincount( - embb_mtapi_spinlock_t * that, - mtapi_uint_t max_spin_count); -mtapi_boolean_t embb_mtapi_spinlock_release(embb_mtapi_spinlock_t * that); - - -#ifdef __cplusplus -} -#endif - -#endif // MTAPI_C_SRC_EMBB_MTAPI_SPINLOCK_T_H_ -- libgit2 0.26.0