753 … * const r, http_response_opts * const opts, buffer * const b, const int fd, unsigned int toread) {  in http_response_append_splice()  argument
756     if (r->resp_body_scratchpad >= toread  in http_response_append_splice()
757         && (toread > 32768  in http_response_append_splice()
758             || (toread >= 8192 /*(!http_response_append_buffer_simple_accum())*/  in http_response_append_splice()
771               &r->write_queue, fd, toread, r->conf.errh)  in http_response_append_splice()
773               &r->write_queue, fd, toread, r->conf.errh);  in http_response_append_splice()
1241         unsigned int toread = 0;  in http_response_read()  local
1244         if (0 == fdevent_ioctl_fionread(fd, opts->fdfmt, (int *)&toread)) {  in http_response_read()
1249                 int rc = http_response_append_splice(r, opts, b, fd, toread);  in http_response_read()
1258             if (avail < toread) {  in http_response_read()
1260                 if (toread + blen < 4096)  in http_response_read()
1261                     toread = 4095 - blen;  in http_response_read()
1262                 else if (toread > opts->max_per_read)  in http_response_read()
1263                     toread = opts->max_per_read;  in http_response_read()
1271                 if (toread > 8192 && !r->resp_body_started) toread = 8192;  in http_response_read()
1273             else if (0 == toread) {  in http_response_read()
1285                     toread = 1024;  in http_response_read()
1290             toread = 4095 - avail;  in http_response_read()
1295             if (cqlen + (off_t)toread > 65536 - 4096) {  in http_response_read()
1309                 toread = 65536 - 1 - (unsigned int)cqlen;  in http_response_read()
1318         if (avail < toread) {  in http_response_read()
1320             avail = toread < opts->max_per_read && avail  in http_response_read()
1321               ? avail-1+toread  in http_response_read()
1322               : toread;  in http_response_read()