2 nghttp2_hd_deflate_hd_vec
3 =========================
8 *#include <nghttp2/nghttp2.h>*
10 .. function:: ssize_t nghttp2_hd_deflate_hd_vec(nghttp2_hd_deflater *deflater, const nghttp2_vec *vec, size_t veclen, const nghttp2_nv *nva, size_t nvlen)
13 Deflates the *nva*, which has the *nvlen* name/value pairs, into
14 the *veclen* size of buf vector *vec*. The each size of buffer
15 must be set in len field of :type:`nghttp2_vec`. If and only if
16 one chunk is filled up completely, next chunk will be used. If
17 *vec* is not large enough to store the deflated header block, this
19 :macro:`nghttp2_error.NGHTTP2_ERR_INSUFF_BUFSIZE`. The caller
20 should use `nghttp2_hd_deflate_bound()` to know the upper bound of
21 buffer size required to deflate given header name/value pairs.
23 Once this function fails, subsequent call of this function always
24 returns :macro:`nghttp2_error.NGHTTP2_ERR_HEADER_COMP`.
26 After this function returns, it is safe to delete the *nva*.
28 This function returns the number of bytes written to *vec* if it
29 succeeds, or one of the following negative error codes:
31 :macro:`nghttp2_error.NGHTTP2_ERR_NOMEM`
33 :macro:`nghttp2_error.NGHTTP2_ERR_HEADER_COMP`
34 Deflation process has failed.
35 :macro:`nghttp2_error.NGHTTP2_ERR_INSUFF_BUFSIZE`
36 The provided *buflen* size is too small to hold the output.