1 //
2 //
3 // Copyright 2015 gRPC authors.
4 //
5 // Licensed under the Apache License, Version 2.0 (the "License");
6 // you may not use this file except in compliance with the License.
7 // You may obtain a copy of the License at
8 //
9 // http://www.apache.org/licenses/LICENSE-2.0
10 //
11 // Unless required by applicable law or agreed to in writing, software
12 // distributed under the License is distributed on an "AS IS" BASIS,
13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 // See the License for the specific language governing permissions and
15 // limitations under the License.
16 //
17 //
18
19 #include <grpc/support/alloc.h>
20 #include <grpc/support/port_platform.h>
21 #include <stdlib.h>
22 #include <string.h>
23
24 #include "absl/log/check.h"
25 #include "src/core/util/crash.h"
26
gpr_malloc(size_t size)27 void* gpr_malloc(size_t size) {
28 void* p;
29 if (size == 0) return nullptr;
30 p = malloc(size);
31 if (!p) {
32 abort();
33 }
34 return p;
35 }
36
gpr_zalloc(size_t size)37 void* gpr_zalloc(size_t size) {
38 void* p;
39 if (size == 0) return nullptr;
40 p = calloc(size, 1);
41 if (!p) {
42 abort();
43 }
44 return p;
45 }
46
gpr_free(void * p)47 void gpr_free(void* p) { free(p); }
48
gpr_realloc(void * p,size_t size)49 void* gpr_realloc(void* p, size_t size) {
50 if ((size == 0) && (p == nullptr)) return nullptr;
51 // NOLINTNEXTLINE(bugprone-suspicious-realloc-usage)
52 p = realloc(p, size);
53 if (!p) {
54 abort();
55 }
56 return p;
57 }
58
gpr_malloc_aligned(size_t size,size_t alignment)59 void* gpr_malloc_aligned(size_t size, size_t alignment) {
60 CHECK_EQ(((alignment - 1) & alignment), 0u); // Must be power of 2.
61 size_t extra = alignment - 1 + sizeof(void*);
62 void* p = gpr_malloc(size + extra);
63 void** ret = reinterpret_cast<void**>(
64 (reinterpret_cast<uintptr_t>(p) + extra) & ~(alignment - 1));
65 ret[-1] = p;
66 return ret;
67 }
68
gpr_free_aligned(void * ptr)69 void gpr_free_aligned(void* ptr) { gpr_free((static_cast<void**>(ptr))[-1]); }
70