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@@ -113,6 +113,7 @@ typedef struct chunk_freelist_t {
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/** Static array of freelists, sorted by alloc_len, terminated by an entry
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* with alloc_size of 0. */
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+/**XXXX020 tune these values. */
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static chunk_freelist_t freelists[] = {
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FL(256, 1024, 16), FL(512, 1024, 16), FL(1024, 512, 8), FL(4096, 256, 8),
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FL(8192, 128, 4), FL(16384, 64, 4), FL(0, 0, 0)
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@@ -735,11 +736,14 @@ flush_buf_tls(tor_tls_t *tls, buf_t *buf, size_t sz, size_t *buf_flushlen)
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check();
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while (sz) {
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size_t flushlen0;
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- tor_assert(buf->head);
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- if (buf->head->datalen >= sz)
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- flushlen0 = sz;
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- else
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- flushlen0 = buf->head->datalen;
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+ if (buf->head) {
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+ if (buf->head->datalen >= sz)
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+ flushlen0 = sz;
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+ else
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+ flushlen0 = buf->head->datalen;
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+ } else {
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+ flushlen0 = 0;
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+ }
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r = flush_chunk_tls(tls, buf, buf->head, flushlen0, buf_flushlen);
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check();
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