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Do not use vector socket functions in HTTP server code

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Refactor code in lib/isc/httpd.c to no longer use isc_socket_sendv() as
this function will be removed shortly.
This commit is contained in:
Witold Kręcicki
2018-10-26 19:07:41 +00:00
committed by Michał Kępień
parent 3b6f9db3fb
commit 07eebc42e4
1 changed files with 14 additions and 29 deletions
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43
lib/isc/httpd.c
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@@ -114,9 +114,9 @@ struct isc_httpd {
* compressed HTTP data, if compression is used.
*
*/
isc_bufferlist_t bufflist;
isc_buffer_t headerbuffer;
isc_buffer_t compbuffer;
isc_buffer_t *sendbuffer;
const char *mimetype;
unsigned int retcode;
@@ -667,10 +667,9 @@ isc_httpd_accept(isc_task_t *task, isc_event_t *ev) {
}
isc_buffer_init(&httpd->headerbuffer, headerdata, HTTP_SENDGROW);
ISC_LIST_INIT(httpd->bufflist);
isc_buffer_initnull(&httpd->compbuffer);
isc_buffer_initnull(&httpd->bodybuffer);
httpd->sendbuffer = NULL;
reset_client(httpd);
r.base = (unsigned char *)httpd->recvbuf;
@@ -840,12 +839,13 @@ isc_httpd_compress(isc_httpd_t *httpd) {
static void
isc_httpd_recvdone(isc_task_t *task, isc_event_t *ev) {
isc_region_t r;
isc_result_t result;
isc_httpd_t *httpd = ev->ev_arg;
isc_socketevent_t *sev = (isc_socketevent_t *)ev;
isc_httpdurl_t *url;
isc_time_t now;
isc_region_t headerr, datar, r;
size_t total;
bool is_compressed = false;
char datebuf[ISC_FORMATHTTPTIMESTAMP_SIZE];
@@ -963,22 +963,20 @@ isc_httpd_recvdone(isc_task_t *task, isc_event_t *ev) {
isc_httpd_endheaders(httpd); /* done */
ISC_LIST_APPEND(httpd->bufflist, &httpd->headerbuffer, link);
/*
* Link the data buffer into our send queue, should we have any data
* rendered into it. If no data is present, we won't do anything
* with the buffer.
*/
isc_buffer_usedregion(&httpd->headerbuffer, &headerr);
if (is_compressed == true) {
ISC_LIST_APPEND(httpd->bufflist, &httpd->compbuffer, link);
isc_buffer_usedregion(&httpd->compbuffer, &datar);
} else {
if (isc_buffer_length(&httpd->bodybuffer) > 0) {
ISC_LIST_APPEND(httpd->bufflist, &httpd->bodybuffer, link);
}
isc_buffer_usedregion(&httpd->bodybuffer, &datar);
}
total = headerr.length + datar.length;
isc_buffer_allocate(httpd->mgr->mctx, &httpd->sendbuffer, total);
isc_buffer_copyregion(httpd->sendbuffer, &headerr);
isc_buffer_copyregion(httpd->sendbuffer, &datar);
isc_buffer_usedregion(httpd->sendbuffer, &r);
/* check return code? */
(void)isc_socket_sendv(httpd->sock, &httpd->bufflist, task,
(void)isc_socket_send(httpd->sock, &r, task,
isc_httpd_senddone, httpd);
out:
@@ -1126,13 +1124,7 @@ isc_httpd_senddone(isc_task_t *task, isc_event_t *ev) {
ENTER("senddone");
INSIST(ISC_HTTPD_ISSEND(httpd));
/*
* First, unlink our header buffer from the socket's bufflist. This
* is sort of an evil hack, since we know our buffer will be there,
* and we know it's address, so we can just remove it directly.
*/
NOTICE("senddone unlinked header");
ISC_LIST_UNLINK(sev->bufferlist, &httpd->headerbuffer, link);
isc_buffer_free(&httpd->sendbuffer);
/*
* We will always want to clean up our receive buffer, even if we
@@ -1149,13 +1141,6 @@ isc_httpd_senddone(isc_task_t *task, isc_event_t *ev) {
}
NOTICE("senddone free callback performed");
}
if (ISC_LINK_LINKED(&httpd->bodybuffer, link)) {
ISC_LIST_UNLINK(sev->bufferlist, &httpd->bodybuffer, link);
NOTICE("senddone body buffer unlinked");
} else if (ISC_LINK_LINKED(&httpd->compbuffer, link)) {
ISC_LIST_UNLINK(sev->bufferlist, &httpd->compbuffer, link);
NOTICE("senddone compressed data unlinked and freed");
}
if (sev->result != ISC_R_SUCCESS) {
destroy_client(&httpd);