| /* |
| * librdkafka - The Apache Kafka C/C++ library |
| * |
| * Copyright (c) 2014-2016 Magnus Edenhill |
| * 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 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. |
| */ |
| #pragma once |
| |
| #include "tinycthread.h" |
| |
| typedef struct { |
| int32_t val; |
| #ifndef HAVE_ATOMICS_32 |
| mtx_t lock; |
| #endif |
| } rd_atomic32_t; |
| |
| typedef struct { |
| int64_t val; |
| #ifndef HAVE_ATOMICS_64 |
| mtx_t lock; |
| #endif |
| } rd_atomic64_t; |
| |
| |
| static RD_INLINE RD_UNUSED void rd_atomic32_init (rd_atomic32_t *ra, int32_t v) { |
| ra->val = v; |
| #if !defined(_MSC_VER) && !defined(HAVE_ATOMICS_32) |
| mtx_init(&ra->lock, mtx_plain); |
| #endif |
| } |
| |
| |
| static RD_INLINE int32_t RD_UNUSED rd_atomic32_add (rd_atomic32_t *ra, int32_t v) { |
| #ifdef __SUNPRO_C |
| return atomic_add_32_nv(&ra->val, v); |
| #elif defined(_MSC_VER) |
| return InterlockedAdd(&ra->val, v); |
| #elif !defined(HAVE_ATOMICS_32) |
| int32_t r; |
| mtx_lock(&ra->lock); |
| ra->val += v; |
| r = ra->val; |
| mtx_unlock(&ra->lock); |
| return r; |
| #else |
| return ATOMIC_OP32(add, fetch, &ra->val, v); |
| #endif |
| } |
| |
| static RD_INLINE int32_t RD_UNUSED rd_atomic32_sub(rd_atomic32_t *ra, int32_t v) { |
| #ifdef __SUNPRO_C |
| return atomic_add_32_nv(&ra->val, -v); |
| #elif defined(_MSC_VER) |
| return InterlockedAdd(&ra->val, -v); |
| #elif !defined(HAVE_ATOMICS_32) |
| int32_t r; |
| mtx_lock(&ra->lock); |
| ra->val -= v; |
| r = ra->val; |
| mtx_unlock(&ra->lock); |
| return r; |
| #else |
| return ATOMIC_OP32(sub, fetch, &ra->val, v); |
| #endif |
| } |
| |
| static RD_INLINE int32_t RD_UNUSED rd_atomic32_get(rd_atomic32_t *ra) { |
| #if defined(_MSC_VER) || defined(__SUNPRO_C) |
| return ra->val; |
| #elif !defined(HAVE_ATOMICS_32) |
| int32_t r; |
| mtx_lock(&ra->lock); |
| r = ra->val; |
| mtx_unlock(&ra->lock); |
| return r; |
| #else |
| return ATOMIC_OP32(fetch, add, &ra->val, 0); |
| #endif |
| } |
| |
| static RD_INLINE int32_t RD_UNUSED rd_atomic32_set(rd_atomic32_t *ra, int32_t v) { |
| #ifdef _MSC_VER |
| return InterlockedExchange(&ra->val, v); |
| #elif !defined(HAVE_ATOMICS_32) |
| int32_t r; |
| mtx_lock(&ra->lock); |
| r = ra->val = v; |
| mtx_unlock(&ra->lock); |
| return r; |
| #else |
| return ra->val = v; // FIXME |
| #endif |
| } |
| |
| |
| |
| static RD_INLINE RD_UNUSED void rd_atomic64_init (rd_atomic64_t *ra, int64_t v) { |
| ra->val = v; |
| #if !defined(_MSC_VER) && !defined(HAVE_ATOMICS_64) |
| mtx_init(&ra->lock, mtx_plain); |
| #endif |
| } |
| |
| static RD_INLINE int64_t RD_UNUSED rd_atomic64_add (rd_atomic64_t *ra, int64_t v) { |
| #ifdef __SUNPRO_C |
| return atomic_add_64_nv(&ra->val, v); |
| #elif defined(_MSC_VER) |
| return InterlockedAdd64(&ra->val, v); |
| #elif !defined(HAVE_ATOMICS_64) |
| int64_t r; |
| mtx_lock(&ra->lock); |
| ra->val += v; |
| r = ra->val; |
| mtx_unlock(&ra->lock); |
| return r; |
| #else |
| return ATOMIC_OP64(add, fetch, &ra->val, v); |
| #endif |
| } |
| |
| static RD_INLINE int64_t RD_UNUSED rd_atomic64_sub(rd_atomic64_t *ra, int64_t v) { |
| #ifdef __SUNPRO_C |
| return atomic_add_64_nv(&ra->val, -v); |
| #elif defined(_MSC_VER) |
| return InterlockedAdd64(&ra->val, -v); |
| #elif !defined(HAVE_ATOMICS_64) |
| int64_t r; |
| mtx_lock(&ra->lock); |
| ra->val -= v; |
| r = ra->val; |
| mtx_unlock(&ra->lock); |
| return r; |
| #else |
| return ATOMIC_OP64(sub, fetch, &ra->val, v); |
| #endif |
| } |
| |
| static RD_INLINE int64_t RD_UNUSED rd_atomic64_get(rd_atomic64_t *ra) { |
| #if defined(_MSC_VER) || defined(__SUNPRO_C) |
| return ra->val; |
| #elif !defined(HAVE_ATOMICS_64) |
| int64_t r; |
| mtx_lock(&ra->lock); |
| r = ra->val; |
| mtx_unlock(&ra->lock); |
| return r; |
| #else |
| return ATOMIC_OP64(fetch, add, &ra->val, 0); |
| #endif |
| } |
| |
| |
| static RD_INLINE int64_t RD_UNUSED rd_atomic64_set(rd_atomic64_t *ra, int64_t v) { |
| #ifdef _MSC_VER |
| return InterlockedExchange64(&ra->val, v); |
| #elif !defined(HAVE_ATOMICS_64) |
| int64_t r; |
| mtx_lock(&ra->lock); |
| ra->val = v; |
| r = ra->val; |
| mtx_unlock(&ra->lock); |
| return r; |
| #else |
| return ra->val = v; // FIXME |
| #endif |
| } |