diff options
Diffstat (limited to 'src/or/buffers.c')
| -rw-r--r-- | src/or/buffers.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/or/buffers.c b/src/or/buffers.c index 856c9b6060..352e60a979 100644 --- a/src/or/buffers.c +++ b/src/or/buffers.c @@ -276,12 +276,14 @@ preferred_chunk_size(size_t target) } /** Remove from the freelists most chunks that have not been used since the - * last call to buf_shrink_freelists(). */ -void + * last call to buf_shrink_freelists(). Return the amount of memory + * freed. */ +size_t buf_shrink_freelists(int free_all) { #ifdef ENABLE_BUF_FREELISTS int i; + size_t total_freed = 0; disable_control_logging(); for (i = 0; freelists[i].alloc_size; ++i) { int slack = freelists[i].slack; @@ -315,6 +317,7 @@ buf_shrink_freelists(int free_all) chunk_t *next = chunk->next; tor_assert(total_bytes_allocated_in_chunks >= CHUNK_ALLOC_SIZE(chunk->memlen)); total_bytes_allocated_in_chunks -= CHUNK_ALLOC_SIZE(chunk->memlen); + total_freed += CHUNK_ALLOC_SIZE(chunk->memlen); tor_free(chunk); chunk = next; --n_to_free; @@ -343,8 +346,10 @@ buf_shrink_freelists(int free_all) } done: enable_control_logging(); + return total_freed; #else (void) free_all; + return 0; #endif } |