diff options
Diffstat (limited to 'src/common')
| -rw-r--r-- | src/common/memarea.c | 16 | ||||
| -rw-r--r-- | src/common/memarea.h | 2 |
2 files changed, 18 insertions, 0 deletions
diff --git a/src/common/memarea.c b/src/common/memarea.c index 916010cfd1..743a451a8b 100644 --- a/src/common/memarea.c +++ b/src/common/memarea.c @@ -197,6 +197,22 @@ memarea_strndup(memarea_t *area, const char *s, size_t n) return result; } +/** Set <b>allocated_out</b> to the number of bytes allocated in <b>area</b>, + * and <b>used_out</b> to the number of bytes currently used. */ +void +memarea_get_stats(memarea_t *area, size_t *allocated_out, size_t *used_out) +{ + size_t a = 0, u = 0; + memarea_chunk_t *chunk; + for (chunk = area->first; chunk; chunk = chunk->next_chunk) { + a += CHUNK_HEADER_SIZE + chunk->mem_size; + tor_assert(chunk->next_mem >= chunk->u.mem); + u += CHUNK_HEADER_SIZE + (chunk->next_mem - chunk->u.mem); + } + *allocated_out = a; + *used_out = u; +} + /** Assert that <b>area</b> is okay. */ void memarea_assert_ok(memarea_t *area) diff --git a/src/common/memarea.h b/src/common/memarea.h index 76a3c3af81..17ab781a7f 100644 --- a/src/common/memarea.h +++ b/src/common/memarea.h @@ -17,6 +17,8 @@ void *memarea_alloc_zero(memarea_t *area, size_t sz); void *memarea_memdup(memarea_t *area, const void *s, size_t n); char *memarea_strdup(memarea_t *area, const char *s); char *memarea_strndup(memarea_t *area, const char *s, size_t n); +void memarea_get_stats(memarea_t *area, + size_t *allocated_out, size_t *used_out); void memarea_assert_ok(memarea_t *area); #endif |