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authorAndrea Shepard <andrea@torproject.org>2014-04-29 02:18:34 -0700
committerAndrea Shepard <andrea@torproject.org>2014-04-29 02:18:34 -0700
commit91ff10f6be984c6ca00a7240d32e79ab7db09c7c (patch)
treef05158871709b439772283b0828a1110fa8e8513
parentcdc64f020c926cd51b037b85b5eba5bf08d66e7d (diff)
downloadtor-91ff10f6be984c6ca00a7240d32e79ab7db09c7c.tar
tor-91ff10f6be984c6ca00a7240d32e79ab7db09c7c.tar.gz
Make --disable-buf-freelists build and pass unit tests
-rw-r--r--src/or/buffers.c6
-rw-r--r--src/test/test_buffers.c13
2 files changed, 14 insertions, 5 deletions
diff --git a/src/or/buffers.c b/src/or/buffers.c
index fb186081c..e54751db2 100644
--- a/src/or/buffers.c
+++ b/src/or/buffers.c
@@ -117,6 +117,9 @@ chunk_repack(chunk_t *chunk)
chunk->data = &chunk->mem[0];
}
+/** Keep track of total size of allocated chunks for consistency asserts */
+static size_t total_bytes_allocated_in_chunks = 0;
+
#if defined(ENABLE_BUF_FREELISTS) || defined(RUNNING_DOXYGEN)
/** A freelist of chunks. */
typedef struct chunk_freelist_t {
@@ -148,9 +151,6 @@ static chunk_freelist_t freelists[] = {
* could help with? */
static uint64_t n_freelist_miss = 0;
-/** DOCDOC */
-static size_t total_bytes_allocated_in_chunks = 0;
-
static void assert_freelist_ok(chunk_freelist_t *fl);
/** Return the freelist to hold chunks of size <b>alloc</b>, or NULL if
diff --git a/src/test/test_buffers.c b/src/test/test_buffers.c
index 6dd771593..c2cfd2700 100644
--- a/src/test/test_buffers.c
+++ b/src/test/test_buffers.c
@@ -481,13 +481,22 @@ test_buffer_allocation_tracking(void *arg)
fetch_from_buf(junk, 4096, buf1); /* drop a 1k chunk... */
tt_int_op(buf_allocation(buf1), ==, 3*4096); /* now 3 4k chunks */
+#ifdef ENABLE_BUF_FREELISTS
tt_int_op(buf_get_total_allocation(), ==, 16384); /* that chunk went onto
the freelist. */
+#else
+ tt_int_op(buf_get_total_allocation(), ==, 12288); /* that chunk was really
+ freed. */
+#endif
write_to_buf(junk, 4000, buf2);
tt_int_op(buf_allocation(buf2), ==, 4096); /* another 4k chunk. */
- tt_int_op(buf_get_total_allocation(), ==, 16384); /* that chunk came from
- the freelist. */
+ /*
+ * If we're using freelists, size stays at 16384 because we just pulled a
+ * chunk from the freelist. If we aren't, we bounce back up to 16384 by
+ * allocating a new chunk.
+ */
+ tt_int_op(buf_get_total_allocation(), ==, 16384);
write_to_buf(junk, 4000, buf2);
tt_int_op(buf_allocation(buf2), ==, 8192); /* another 4k chunk. */
tt_int_op(buf_get_total_allocation(), ==, 5*4096); /* that chunk was new. */