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