comparison: src/mempool.c
src/mempool.c
- changeset 1040
- 1ecf4dbbc60c
- parent 993
- b642eca4b956
equal
deleted
inserted
replaced
| 1039:ec62453fc8a6 | 1040:1ecf4dbbc60c |
|---|---|
| 27 */ | 27 */ |
| 28 | 28 |
| 29 #include "cx/mempool.h" | 29 #include "cx/mempool.h" |
| 30 | 30 |
| 31 #include <string.h> | 31 #include <string.h> |
| 32 #include <errno.h> | |
| 32 | 33 |
| 33 struct cx_mempool_memory_s { | 34 struct cx_mempool_memory_s { |
| 34 /** The destructor. */ | 35 /** The destructor. */ |
| 35 cx_destructor_func destructor; | 36 cx_destructor_func destructor; |
| 36 /** The actual memory. */ | 37 /** The actual memory. */ |
| 43 ) { | 44 ) { |
| 44 struct cx_mempool_s *pool = p; | 45 struct cx_mempool_s *pool = p; |
| 45 | 46 |
| 46 if (pool->size >= pool->capacity) { | 47 if (pool->size >= pool->capacity) { |
| 47 size_t newcap = pool->capacity - (pool->capacity % 16) + 16; | 48 size_t newcap = pool->capacity - (pool->capacity % 16) + 16; |
| 48 struct cx_mempool_memory_s **newdata = realloc(pool->data, newcap*sizeof(struct cx_mempool_memory_s*)); | 49 size_t newmsize; |
| 50 if (pool->capacity > newcap || cx_szmul(newcap, | |
| 51 sizeof(struct cx_mempool_memory_s*), &newmsize)) { | |
| 52 errno = EOVERFLOW; | |
| 53 return NULL; | |
| 54 } | |
| 55 struct cx_mempool_memory_s **newdata = realloc(pool->data, newmsize); | |
| 49 if (newdata == NULL) { | 56 if (newdata == NULL) { |
| 50 return NULL; | 57 return NULL; |
| 51 } | 58 } |
| 52 pool->data = newdata; | 59 pool->data = newdata; |
| 53 pool->capacity = newcap; | 60 pool->capacity = newcap; |
| 70 size_t nelem, | 77 size_t nelem, |
| 71 size_t elsize | 78 size_t elsize |
| 72 ) { | 79 ) { |
| 73 size_t msz; | 80 size_t msz; |
| 74 if (cx_szmul(nelem, elsize, &msz)) { | 81 if (cx_szmul(nelem, elsize, &msz)) { |
| 82 errno = EOVERFLOW; | |
| 75 return NULL; | 83 return NULL; |
| 76 } | 84 } |
| 77 void *ptr = cx_mempool_malloc(p, msz); | 85 void *ptr = cx_mempool_malloc(p, msz); |
| 78 if (ptr == NULL) { | 86 if (ptr == NULL) { |
| 79 return NULL; | 87 return NULL; |
| 202 size_t capacity, | 210 size_t capacity, |
| 203 cx_destructor_func destr | 211 cx_destructor_func destr |
| 204 ) { | 212 ) { |
| 205 size_t poolsize; | 213 size_t poolsize; |
| 206 if (cx_szmul(capacity, sizeof(struct cx_mempool_memory_s*), &poolsize)) { | 214 if (cx_szmul(capacity, sizeof(struct cx_mempool_memory_s*), &poolsize)) { |
| 215 errno = EOVERFLOW; | |
| 207 return NULL; | 216 return NULL; |
| 208 } | 217 } |
| 209 | 218 |
| 210 struct cx_mempool_s *pool = | 219 struct cx_mempool_s *pool = |
| 211 malloc(sizeof(struct cx_mempool_s)); | 220 malloc(sizeof(struct cx_mempool_s)); |
