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[njs] Modules: improved working with external prototypes.

Dmitry Volyntsev
July 09, 2021 03:38PM
details: https://hg.nginx.org/njs/rev/92cb9b80cf8b
branches:
changeset: 1674:92cb9b80cf8b
user: Dmitry Volyntsev <xeioex@nginx.com>
date: Fri Jul 09 14:01:26 2021 +0000
description:
Modules: improved working with external prototypes.

This patch avoids relying on the order in which external prototypes are
registered. Instead, the returned proto_id is expected to be stored
somewhere.

diffstat:

nginx/ngx_http_js_module.c | 16 ++++++++++------
nginx/ngx_js.h | 3 ---
nginx/ngx_js_fetch.c | 14 ++++++++------
nginx/ngx_stream_js_module.c | 12 ++++++++----
4 files changed, 26 insertions(+), 19 deletions(-)

diffs (149 lines):

diff -r 36dd0370b121 -r 92cb9b80cf8b nginx/ngx_http_js_module.c
--- a/nginx/ngx_http_js_module.c Fri Jul 09 12:03:11 2021 +0300
+++ b/nginx/ngx_http_js_module.c Fri Jul 09 14:01:26 2021 +0000
@@ -320,6 +320,9 @@ static ngx_http_output_header_filter_pt
static ngx_http_output_body_filter_pt ngx_http_next_body_filter;


+static njs_int_t ngx_http_js_request_proto_id;
+
+
static njs_external_t ngx_http_js_ext_request[] = {

{
@@ -1114,7 +1117,7 @@ ngx_http_js_init_vm(ngx_http_request_t *
}

rc = njs_vm_external_create(ctx->vm, njs_value_arg(&ctx->request),
- NGX_JS_PROTO_MAIN, r, 0);
+ ngx_http_js_request_proto_id, r, 0);
if (rc != NJS_OK) {
return NGX_ERROR;
}
@@ -3141,7 +3144,7 @@ ngx_http_js_subrequest_done(ngx_http_req
}

ret = njs_vm_external_create(ctx->vm, njs_value_arg(&reply),
- NGX_JS_PROTO_MAIN, r, 0);
+ ngx_http_js_request_proto_id, r, 0);
if (ret != NJS_OK) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"js subrequest reply creation failed");
@@ -3383,7 +3386,7 @@ ngx_http_js_init_main_conf(ngx_conf_t *c
ssize_t n;
ngx_fd_t fd;
ngx_str_t *m, file;
- njs_int_t rc, proto_id;
+ njs_int_t rc;
njs_str_t text, path;
ngx_uint_t i;
njs_value_t *value;
@@ -3542,9 +3545,10 @@ ngx_http_js_init_main_conf(ngx_conf_t *c
}
}

- proto_id = njs_vm_external_prototype(jmcf->vm, ngx_http_js_ext_request,
- njs_nitems(ngx_http_js_ext_request));
- if (proto_id < 0) {
+ ngx_http_js_request_proto_id = njs_vm_external_prototype(jmcf->vm,
+ ngx_http_js_ext_request,
+ njs_nitems(ngx_http_js_ext_request));
+ if (ngx_http_js_request_proto_id < 0) {
ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
"failed to add js request proto");
return NGX_CONF_ERROR;
diff -r 36dd0370b121 -r 92cb9b80cf8b nginx/ngx_js.h
--- a/nginx/ngx_js.h Fri Jul 09 12:03:11 2021 +0300
+++ b/nginx/ngx_js.h Fri Jul 09 14:01:26 2021 +0000
@@ -19,9 +19,6 @@
#define NGX_JS_STRING 1
#define NGX_JS_BUFFER 2

-#define NGX_JS_PROTO_MAIN 0
-#define NGX_JS_PROTO_RESPONSE 1
-

typedef ngx_pool_t *(*ngx_external_pool_pt)(njs_vm_t *vm, njs_external_ptr_t e);
typedef void (*ngx_js_event_handler_pt)(njs_external_ptr_t e,
diff -r 36dd0370b121 -r 92cb9b80cf8b nginx/ngx_js_fetch.c
--- a/nginx/ngx_js_fetch.c Fri Jul 09 12:03:11 2021 +0300
+++ b/nginx/ngx_js_fetch.c Fri Jul 09 14:01:26 2021 +0000
@@ -319,6 +319,9 @@ static njs_external_t ngx_js_ext_http_r
};


+static njs_int_t ngx_http_js_fetch_proto_id;
+
+
njs_int_t
ngx_js_ext_fetch(njs_vm_t *vm, njs_value_t *args, njs_uint_t nargs,
njs_index_t unused)
@@ -1189,7 +1192,7 @@ ngx_js_http_process_body(ngx_js_http_t *

if (size == http->http_parse.content_length_n) {
ret = njs_vm_external_create(http->vm, njs_value_arg(&http->reply),
- NGX_JS_PROTO_RESPONSE, http, 0);
+ ngx_http_js_fetch_proto_id, http, 0);
if (ret != NJS_OK) {
ngx_js_http_error(http, 0, "fetch object creation failed");
return NGX_ERROR;
@@ -2212,11 +2215,10 @@ ngx_response_js_ext_type(njs_vm_t *vm, n
ngx_int_t
ngx_js_fetch_init(njs_vm_t *vm, ngx_log_t *log)
{
- njs_int_t proto_id;
-
- proto_id = njs_vm_external_prototype(vm, ngx_js_ext_http_response,
- njs_nitems(ngx_js_ext_http_response));
- if (proto_id != NGX_JS_PROTO_RESPONSE) {
+ ngx_http_js_fetch_proto_id = njs_vm_external_prototype(vm,
+ ngx_js_ext_http_response,
+ njs_nitems(ngx_js_ext_http_response));
+ if (ngx_http_js_fetch_proto_id < 0) {
ngx_log_error(NGX_LOG_EMERG, log, 0,
"failed to add js http.response proto");
return NGX_ERROR;
diff -r 36dd0370b121 -r 92cb9b80cf8b nginx/ngx_stream_js_module.c
--- a/nginx/ngx_stream_js_module.c Fri Jul 09 12:03:11 2021 +0300
+++ b/nginx/ngx_stream_js_module.c Fri Jul 09 14:01:26 2021 +0000
@@ -419,6 +419,9 @@ static njs_vm_meta_t ngx_stream_js_metas
static ngx_stream_filter_pt ngx_stream_next_filter;


+static njs_int_t ngx_stream_js_session_proto_id;
+
+
static ngx_int_t
ngx_stream_js_access_handler(ngx_stream_session_t *s)
{
@@ -757,7 +760,7 @@ ngx_stream_js_init_vm(ngx_stream_session
}

rc = njs_vm_external_create(ctx->vm, njs_value_arg(&ctx->args[0]),
- NGX_JS_PROTO_MAIN, s, 0);
+ ngx_stream_js_session_proto_id, s, 0);
if (rc != NJS_OK) {
return NGX_ERROR;
}
@@ -1400,7 +1403,7 @@ ngx_stream_js_init_main_conf(ngx_conf_t
ssize_t n;
ngx_fd_t fd;
ngx_str_t *m, file;
- njs_int_t rc, proto_id;
+ njs_int_t rc;
njs_str_t text, path;
ngx_uint_t i;
njs_value_t *value;
@@ -1559,9 +1562,10 @@ ngx_stream_js_init_main_conf(ngx_conf_t
}
}

- proto_id = njs_vm_external_prototype(jmcf->vm, ngx_stream_js_ext_session,
+ ngx_stream_js_session_proto_id = njs_vm_external_prototype(jmcf->vm,
+ ngx_stream_js_ext_session,
njs_nitems(ngx_stream_js_ext_session));
- if (proto_id < 0) {
+ if (ngx_stream_js_session_proto_id < 0) {
ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
"failed to add js request proto");
return NGX_CONF_ERROR;
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[njs] Modules: improved working with external prototypes.

Dmitry Volyntsev 83 July 09, 2021 03:38PM



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