FastCGI: unconditional state transitions.

Checks for f->padding before state transitions make code hard to follow,
remove them and make sure we always do another loop iteration after
f->state is set to ngx_http_fastcgi_st_padding.
This commit is contained in:
Maxim Dounin 2013-02-01 14:41:07 +00:00
parent 1c5fce7518
commit e8efec0e5e

View File

@ -1356,11 +1356,7 @@ ngx_http_fastcgi_process_header(ngx_http_request_t *r)
}
} else {
if (f->padding) {
f->state = ngx_http_fastcgi_st_padding;
} else {
f->state = ngx_http_fastcgi_st_version;
}
f->state = ngx_http_fastcgi_st_padding;
}
continue;
@ -1597,11 +1593,7 @@ ngx_http_fastcgi_process_header(ngx_http_request_t *r)
f->length -= u->buffer.pos - start;
if (f->length == 0) {
if (f->padding) {
f->state = ngx_http_fastcgi_st_padding;
} else {
f->state = ngx_http_fastcgi_st_version;
}
f->state = ngx_http_fastcgi_st_padding;
}
if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
@ -1696,12 +1688,7 @@ ngx_http_fastcgi_input_filter(ngx_event_pipe_t *p, ngx_buf_t *buf)
}
if (f->type == NGX_HTTP_FASTCGI_STDOUT && f->length == 0) {
if (f->padding) {
f->state = ngx_http_fastcgi_st_padding;
} else {
f->state = ngx_http_fastcgi_st_version;
}
f->state = ngx_http_fastcgi_st_padding;
if (!flcf->keep_conn) {
p->upstream_done = 1;
@ -1714,12 +1701,7 @@ ngx_http_fastcgi_input_filter(ngx_event_pipe_t *p, ngx_buf_t *buf)
}
if (f->type == NGX_HTTP_FASTCGI_END_REQUEST) {
if (f->padding) {
f->state = ngx_http_fastcgi_st_padding;
} else {
f->state = ngx_http_fastcgi_st_version;
}
f->state = ngx_http_fastcgi_st_padding;
p->upstream_done = 1;
@ -1730,7 +1712,7 @@ ngx_http_fastcgi_input_filter(ngx_event_pipe_t *p, ngx_buf_t *buf)
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, p->log, 0,
"http fastcgi sent end request");
break;
continue;
}
}
@ -1789,11 +1771,7 @@ ngx_http_fastcgi_input_filter(ngx_event_pipe_t *p, ngx_buf_t *buf)
m + 1 - msg, msg);
} else {
if (f->padding) {
f->state = ngx_http_fastcgi_st_padding;
} else {
f->state = ngx_http_fastcgi_st_version;
}
f->state = ngx_http_fastcgi_st_padding;
}
continue;
@ -1852,33 +1830,14 @@ ngx_http_fastcgi_input_filter(ngx_event_pipe_t *p, ngx_buf_t *buf)
ngx_log_debug2(NGX_LOG_DEBUG_EVENT, p->log, 0,
"input buf #%d %p", b->num, b->pos);
if (f->pos + f->length < f->last) {
if (f->padding) {
f->state = ngx_http_fastcgi_st_padding;
} else {
f->state = ngx_http_fastcgi_st_version;
}
if (f->pos + f->length <= f->last) {
f->state = ngx_http_fastcgi_st_padding;
f->pos += f->length;
b->last = f->pos;
continue;
}
if (f->pos + f->length == f->last) {
if (f->padding) {
f->state = ngx_http_fastcgi_st_padding;
} else {
f->state = ngx_http_fastcgi_st_version;
}
b->last = f->last;
break;
}
f->length -= f->last - f->pos;
b->last = f->last;