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nginx-0.0.1-2003-10-31-19:05:33 import

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This commit is contained in:
Igor Sysoev 2003-10-31 16:05:33 +00:00
parent 219d44dd5d
commit fe0f5cc6e1
5 changed files with 129 additions and 23 deletions
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2
src/event/ngx_event_connect.c
View File

@ -223,7 +223,7 @@ ngx_log_debug(pc->log, "CONNECT: %s" _ peer->addr_port_text.data);
* aio allows to post operation on non-connected socket
* at least in FreeBSD
*
* TODO: check in Win32, etc.
* TODO: check in Win32, etc. As workaround we can use NGX_ONESHOT_EVENT
*/
rev->ready = 1;

133
src/http/modules/proxy/ngx_http_proxy_handler.c
View File

@ -22,6 +22,7 @@ static void ngx_http_proxy_process_body(ngx_event_t *ev);
static int ngx_http_proxy_parse_status_line(ngx_http_proxy_ctx_t *p);
static void ngx_http_proxy_next_upstream(ngx_http_proxy_ctx_t *p, int ft_type);
static int ngx_http_proxy_log_state(ngx_http_proxy_ctx_t *p, int status);
static void ngx_http_proxy_finalize_request(ngx_http_proxy_ctx_t *p, int rc);
static void ngx_http_proxy_close_connection(ngx_connection_t *c);
@ -189,9 +190,9 @@ static ngx_http_header_t headers_in[] = {
};
static char http_version[] = " HTTP/1.0" CRLF;
static char host_header[] = "Host: ";
static char connection_close_header[] = "Connection: close" CRLF;
static char http_version[] = " HTTP/1.0" CRLF;
static char host_header[] = "Host: ";
static char connection_close_header[] = "Connection: close" CRLF;
@ -207,6 +208,10 @@ static int ngx_http_proxy_handler(ngx_http_request_t *r)
p->upstream.peers = p->lcf->peers;
p->upstream.tries = p->lcf->peers->number;
ngx_init_array(p->states, r->pool, p->upstream.tries,
sizeof(ngx_http_proxy_state_t),
NGX_HTTP_INTERNAL_SERVER_ERROR);
p->request = r;
p->method = r->method;
@ -471,21 +476,13 @@ static int ngx_http_proxy_connect(ngx_http_proxy_ctx_t *p)
if (rc == NGX_CONNECT_ERROR) {
ngx_event_connect_peer_failed(&p->upstream);
#if 0
/* TODO: make separate func and call it from next_upstream */
if (!(state = ngx_push_array(p->states))) {
if (ngx_http_proxy_log_state(p, NGX_HTTP_BAD_GATEWAY) == NGX_ERROR)
{
ngx_http_proxy_finalize_request(p,
NGX_HTTP_INTERNAL_SERVER_ERROR);
return NGX_DONE;
}
state->status = NGX_HTTP_BAD_GATEWAY;
state->peer =
p->upstream.peers->peers[p->upstream.cur_peer].addr_port_text;
#endif
if (p->upstream.tries == 0) {
ngx_http_proxy_finalize_request(p, NGX_HTTP_BAD_GATEWAY);
return NGX_DONE;
@ -517,7 +514,7 @@ static int ngx_http_proxy_connect(ngx_http_proxy_ctx_t *p)
p->timedout = 0;
if (rc == NGX_OK) {
return ngx_http_proxy_send_request(p);
return ngx_http_proxy_send_request0(p);
}
/* rc == NGX_AGAIN */
@ -528,6 +525,78 @@ static int ngx_http_proxy_connect(ngx_http_proxy_ctx_t *p)
}
}
static int ngx_http_proxy_send_request0(ngx_http_proxy_ctx_t *p)
{
ngx_connection_t *c;
ngx_chain_writer_ctx_t *wctx;
c = p->upstream.connection;
p->action = "sending request to upstream";
wctx = p->output_chain_ctx->output_ctx;
wctx->connection = c;
rc = ngx_output_chain(p->output_chain_ctx,
!p->request_sent ? p->request->request_hunks:
NULL);
if (rc == NGX_ERROR) {
return ngx_http_proxy_next_upstream(p, NGX_HTTP_PROXY_FT_ERROR);
}
p->request_sent = 1;
if (c->write->timer_set) {
ngx_del_timer(c->write);
}
if (rc == NGX_AGAIN) {
ngx_add_timer(c->write, p->lcf->send_timeout);
if (ngx_handle_write_event(c->write, /* STUB: lowat */ 0) == NGX_ERROR)
{
ngx_http_proxy_finalize_request(p, NGX_HTTP_INTERNAL_SERVER_ERROR);
return;
}
return NGX_AGAIN;
}
/* rc == NGX_OK */
if (c->read->ready) {
/* post aio operation */
ngx_http_proxy_process_upstream_status_line(c->read);
}
if (ngx_handle_level_write_event(c->write) == NGX_ERROR) {
ngx_http_proxy_finalize_request(p,
NGX_HTTP_INTERNAL_SERVER_ERROR);
return;
}
if (c->tcp_nopush) {
if (ngx_tcp_push(c->fd) == NGX_ERROR) {
ngx_log_error(NGX_LOG_CRIT, c->log,
ngx_socket_errno,
ngx_tcp_push_n " failed");
ngx_http_proxy_finalize_request(p,
NGX_HTTP_INTERNAL_SERVER_ERROR);
return;
}
c->tcp_nopush = 0;
}
}
return;
}
ngx_http_proxy_next_upstream(p, NGX_HTTP_PROXY_FT_ERROR);
return NGX_OK;
}
#endif
@ -1391,6 +1460,8 @@ static int ngx_http_proxy_parse_status_line(ngx_http_proxy_ctx_t *p)
static void ngx_http_proxy_next_upstream(ngx_http_proxy_ctx_t *p, int ft_type)
{
int status;
ngx_event_connect_peer_failed(&p->upstream);
if (p->timedout) {
@ -1403,10 +1474,20 @@ static void ngx_http_proxy_next_upstream(ngx_http_proxy_ctx_t *p, int ft_type)
p->upstream.connection = NULL;
}
if (ft_type == NGX_HTTP_PROXY_FT_TIMEOUT) {
status = NGX_HTTP_GATEWAY_TIME_OUT;
} else {
status = NGX_HTTP_BAD_GATEWAY;
}
if (ngx_http_proxy_log_state(p, status) == NGX_ERROR) {
ngx_http_proxy_finalize_request(p, NGX_HTTP_INTERNAL_SERVER_ERROR);
return;
}
if (p->upstream.tries == 0 || !(p->lcf->next_upstream & ft_type)) {
ngx_http_proxy_finalize_request(p,
p->timedout ? NGX_HTTP_GATEWAY_TIME_OUT:
NGX_HTTP_BAD_GATEWAY);
ngx_http_proxy_finalize_request(p, status);
return;
}
@ -1420,6 +1501,23 @@ ngx_log_debug(p->request->connection->log, "FATAL ERROR IN NEXT UPSTREAM");
return;
}
static int ngx_http_proxy_log_state(ngx_http_proxy_ctx_t *p, int status)
{
ngx_http_proxy_state_t *state;
if (!(state = ngx_push_array(&p->states))) {
return NGX_ERROR;
}
state->status = status;
state->peer =
&p->upstream.peers->peers[p->upstream.cur_peer].addr_port_text;
return NGX_OK;
}
static void ngx_http_proxy_finalize_request(ngx_http_proxy_ctx_t *p, int rc)
{
ngx_log_debug(p->request->connection->log,
@ -1447,7 +1545,6 @@ static void ngx_http_proxy_finalize_request(ngx_http_proxy_ctx_t *p, int rc)
}
static void ngx_http_proxy_close_connection(ngx_connection_t *c)
{
ngx_log_debug(c->log, "close connection: %d" _ c->fd);

8
src/http/modules/proxy/ngx_http_proxy_handler.h
View File

@ -43,6 +43,12 @@ typedef struct {
} ngx_http_proxy_loc_conf_t;
typedef struct {
int status;
ngx_str_t *peer;
} ngx_http_proxy_state_t;
typedef struct {
ngx_table_t *headers; /* it must be first field */
@ -91,6 +97,8 @@ struct ngx_http_proxy_ctx_s {
int status_count;
int state;
ngx_array_t states; /* of ngx_http_proxy_state_t */
char *action;
ngx_http_log_ctx_t *saved_ctx;
ngx_log_handler_pt saved_handler;

7
src/http/ngx_http_headers.c
View File

@ -48,7 +48,7 @@ ngx_http_header_t ngx_http_headers_out[] = {
ngx_table_elt_t *ngx_http_add_header(void *header,
ngx_http_header_t *http_headers)
{
int i, j, nelts;
int i, j;
char *prev;
ngx_table_t *headers;
ngx_table_elt_t *h, *new;
@ -56,7 +56,6 @@ ngx_table_elt_t *ngx_http_add_header(void *header,
headers = *(ngx_table_t **) header;
prev = headers->elts;
nelts = headers->nelts;
if (!(new = ngx_push_table(headers))) {
return NULL;
@ -74,10 +73,10 @@ ngx_table_elt_t *ngx_http_add_header(void *header,
*/
ngx_log_error(NGX_LOG_ALERT, headers->pool->log, 0,
"header table is small, %d elements", nelts);
"header table is small, %d elements", headers->nelts - 1);
h = headers->elts;
for (i = 0; i < nelts; i++) {
for (i = 0; i < headers->nelts - 1; i++) {
if (h[i].key.len == 0) {
continue;
}

2
src/http/ngx_http_request.c
View File

@ -95,6 +95,8 @@ void ngx_http_init_connection(ngx_connection_t *c)
}
#if 0
/* TODO: learn SO_SNDBUF (to use in zerocopy) via kqueue's EV_CLEAR event */
c->write->ready = 0;
c->write->event_handler = ngx_http_dummy;