int nghttp2_bufs_add(nghttp2_bufs *bufs, const void *data, size_t len)
{
int rv;
size_t nwrite;
nghttp2_buf *buf;
const uint8_t *p;
if(bufs_avail(bufs) < (ssize_t)len) {
return NGHTTP2_ERR_BUFFER_ERROR;
}
p = (const uint8_t *)data;
while(len) {
buf = &bufs->cur->buf;
nwrite = nghttp2_min((size_t)nghttp2_buf_avail(buf), len);
if(nwrite == 0) {
rv = bufs_alloc_chain(bufs);
if(rv != 0) {
return rv;
}
continue;
}
buf->last = nghttp2_cpymem(buf->last, p, nwrite);
p += len;
len -= nwrite;
}
return 0;
}
int nghttp2_bufs_add(nghttp2_bufs *bufs, const void *data, size_t len) {
int rv;
size_t nwrite;
nghttp2_buf *buf;
const uint8_t *p;
// h1994st:
if (!bufs->random_enabled && bufs_avail(bufs) < len) {
return NGHTTP2_ERR_BUFFER_ERROR;
}
p = data;
while (len) {
buf = &bufs->cur->buf;
nwrite = nghttp2_min(nghttp2_buf_avail(buf), len);
if (nwrite == 0) {
rv = bufs_alloc_chain(bufs);
if (rv != 0) {
return rv;
}
continue;
}
buf->last = nghttp2_cpymem(buf->last, p, nwrite);
p += nwrite;
len -= nwrite;
}
return 0;
}
static int bufs_ensure_addb(nghttp2_bufs *bufs) {
int rv;
nghttp2_buf *buf;
buf = &bufs->cur->buf;
if (nghttp2_buf_avail(buf) > 0) {
return 0;
}
rv = bufs_alloc_chain(bufs);
if (rv != 0) {
return rv;
}
return 0;
}
static ssize_t bufs_avail(nghttp2_bufs *bufs)
{
return (ssize_t)(nghttp2_buf_avail(&bufs->cur->buf) +
(bufs->chunk_length - bufs->offset) * (bufs->max_chunk - bufs->chunk_used));
}
