99 lines
2.6 KiB
C++
99 lines
2.6 KiB
C++
/*
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*
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* Copyright 2015 gRPC authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#include <grpc/support/alloc.h>
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#include <grpc/support/log.h>
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#include <grpc/support/port_platform.h>
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#include <stdlib.h>
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#include <string.h>
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#include "src/core/lib/profiling/timers.h"
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static void* zalloc_with_calloc(size_t sz) { return calloc(sz, 1); }
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static void* zalloc_with_gpr_malloc(size_t sz) {
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void* p = gpr_malloc(sz);
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memset(p, 0, sz);
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return p;
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}
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static gpr_allocation_functions g_alloc_functions = {malloc, zalloc_with_calloc,
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realloc, free};
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gpr_allocation_functions gpr_get_allocation_functions() {
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return g_alloc_functions;
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}
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void gpr_set_allocation_functions(gpr_allocation_functions functions) {
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GPR_ASSERT(functions.malloc_fn != nullptr);
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GPR_ASSERT(functions.realloc_fn != nullptr);
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GPR_ASSERT(functions.free_fn != nullptr);
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if (functions.zalloc_fn == nullptr) {
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functions.zalloc_fn = zalloc_with_gpr_malloc;
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}
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g_alloc_functions = functions;
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}
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void* gpr_malloc(size_t size) {
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GPR_TIMER_SCOPE("gpr_malloc", 0);
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void* p;
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if (size == 0) return nullptr;
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p = g_alloc_functions.malloc_fn(size);
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if (!p) {
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abort();
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}
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return p;
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}
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void* gpr_zalloc(size_t size) {
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GPR_TIMER_SCOPE("gpr_zalloc", 0);
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void* p;
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if (size == 0) return nullptr;
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p = g_alloc_functions.zalloc_fn(size);
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if (!p) {
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abort();
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}
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return p;
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}
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void gpr_free(void* p) {
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GPR_TIMER_SCOPE("gpr_free", 0);
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g_alloc_functions.free_fn(p);
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}
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void* gpr_realloc(void* p, size_t size) {
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GPR_TIMER_SCOPE("gpr_realloc", 0);
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if ((size == 0) && (p == nullptr)) return nullptr;
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p = g_alloc_functions.realloc_fn(p, size);
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if (!p) {
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abort();
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}
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return p;
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}
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void* gpr_malloc_aligned(size_t size, size_t alignment) {
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GPR_ASSERT(((alignment - 1) & alignment) == 0); // Must be power of 2.
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size_t extra = alignment - 1 + sizeof(void*);
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void* p = gpr_malloc(size + extra);
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void** ret = (void**)(((uintptr_t)p + extra) & ~(alignment - 1));
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ret[-1] = p;
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return (void*)ret;
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}
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void gpr_free_aligned(void* ptr) { gpr_free((static_cast<void**>(ptr))[-1]); }
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