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nghttp2_hd: Don't malloc if name/value is in first chunk without indexing

This commit is contained in:
Tatsuhiro Tsujikawa 2014-09-30 23:01:58 +09:00
parent e20b417b84
commit 7e6019aef1
1 changed files with 40 additions and 9 deletions
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31
lib/nghttp2_hd.c
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@ -1351,6 +1351,10 @@ static int hd_inflate_remove_bufs(nghttp2_hd_inflater *inflater,
ssize_t rv; ssize_t rv;
size_t buflen; size_t buflen;
uint8_t *buf; uint8_t *buf;
nghttp2_buf *pbuf;
if(inflater->index_required ||
inflater->nvbufs.head != inflater->nvbufs.cur) {
rv = nghttp2_bufs_remove(&inflater->nvbufs, &buf); rv = nghttp2_bufs_remove(&inflater->nvbufs, &buf);
@ -1374,6 +1378,29 @@ static int hd_inflate_remove_bufs(nghttp2_hd_inflater *inflater,
return 0; return 0;
} }
/* If we are not going to store header in header table and
name/value are in first chunk, we just refer them from nv,
instead of mallocing another memory. */
pbuf = &inflater->nvbufs.head->buf;
if(value_only) {
nv->name = NULL;
nv->namelen = 0;
} else {
nv->name = pbuf->pos;
nv->namelen = inflater->newnamelen;
}
nv->value = pbuf->pos + nv->namelen;
nv->valuelen = nghttp2_buf_len(pbuf) - nv->namelen;
/* Resetting does not change the content of first buffer */
nghttp2_bufs_reset(&inflater->nvbufs);
return 0;
}
/* /*
* Finalize literal header representation - new name- reception. If * Finalize literal header representation - new name- reception. If
* header is emitted, |*nv_out| is filled with that value and 0 is * header is emitted, |*nv_out| is filled with that value and 0 is
@ -1430,7 +1457,9 @@ static int hd_inflate_commit_newname(nghttp2_hd_inflater *inflater,
emit_literal_header(nv_out, &nv); emit_literal_header(nv_out, &nv);
if(nv.name != inflater->nvbufs.head->buf.pos) {
inflater->nv_keep = nv.name; inflater->nv_keep = nv.name;
}
return 0; return 0;
} }
@ -1509,7 +1538,9 @@ static int hd_inflate_commit_indname(nghttp2_hd_inflater *inflater,
emit_literal_header(nv_out, &nv); emit_literal_header(nv_out, &nv);
if(nv.value != inflater->nvbufs.head->buf.pos) {
inflater->nv_keep = nv.value; inflater->nv_keep = nv.value;
}
return 0; return 0;
} }