| Dan Albert | 287553d | 2017-02-16 10:47:51 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #ifndef LIBC_INCLUDE_MALLOC_H_ |
| 18 | #define LIBC_INCLUDE_MALLOC_H_ |
| 19 | |
| 20 | /* |
| 21 | * Declaration of malloc routines. Bionic uses dlmalloc (see |
| 22 | * upstream-dlmalloc) but doesn't directly include it here to keep the |
| 23 | * defined malloc.h interface small. |
| 24 | */ |
| 25 | #include <sys/cdefs.h> |
| 26 | #include <stddef.h> |
| 27 | |
| 28 | __BEGIN_DECLS |
| 29 | |
| 30 | extern void* malloc(size_t byte_count) __mallocfunc __wur __attribute__((alloc_size(1))); |
| 31 | extern void* calloc(size_t item_count, size_t item_size) __mallocfunc __wur __attribute__((alloc_size(1,2))); |
| 32 | extern void* realloc(void* p, size_t byte_count) __wur __attribute__((alloc_size(2))); |
| 33 | extern void free(void* p); |
| 34 | |
| 35 | extern void* memalign(size_t alignment, size_t byte_count) __mallocfunc __wur __attribute__((alloc_size(2))); |
| 36 | extern size_t malloc_usable_size(const void* p); |
| 37 | |
| 38 | #ifndef STRUCT_MALLINFO_DECLARED |
| 39 | #define STRUCT_MALLINFO_DECLARED 1 |
| 40 | struct mallinfo { |
| 41 | size_t arena; /* Total number of non-mmapped bytes currently allocated from OS. */ |
| 42 | size_t ordblks; /* Number of free chunks. */ |
| 43 | size_t smblks; /* (Unused.) */ |
| 44 | size_t hblks; /* (Unused.) */ |
| 45 | size_t hblkhd; /* Total number of bytes in mmapped regions. */ |
| 46 | size_t usmblks; /* Maximum total allocated space; greater than total if trimming has occurred. */ |
| 47 | size_t fsmblks; /* (Unused.) */ |
| 48 | size_t uordblks; /* Total allocated space (normal or mmapped.) */ |
| 49 | size_t fordblks; /* Total free space. */ |
| 50 | size_t keepcost; /* Upper bound on number of bytes releasable by malloc_trim. */ |
| 51 | }; |
| 52 | #endif /* STRUCT_MALLINFO_DECLARED */ |
| 53 | |
| 54 | extern struct mallinfo mallinfo(void); |
| 55 | |
| 56 | __END_DECLS |
| 57 | |
| 58 | #endif /* LIBC_INCLUDE_MALLOC_H_ */ |