feat: allocator-api and shared memory support

.github/workflows/nginx.yaml

@@ -52,6 +52,7 @@ env:
     load_module ${{ github.workspace }}/nginx/objs/ngx_http_async_module.so;
     load_module ${{ github.workspace }}/nginx/objs/ngx_http_awssigv4_module.so;
     load_module ${{ github.workspace }}/nginx/objs/ngx_http_curl_module.so;
+    load_module ${{ github.workspace }}/nginx/objs/ngx_http_shared_dict_module.so;
     load_module ${{ github.workspace }}/nginx/objs/ngx_http_upstream_custom_module.so;
 
   OPENSSL_VERSION: '3.0.16'

Cargo.toml

@@ -25,15 +25,20 @@ repository.workspace = true
 rust-version.workspace = true
 
 [dependencies]
+allocator-api2 = { version = "0.2.21", default-features = false }
+lock_api = "0.4.13"
 nginx-sys = { path = "nginx-sys", default-features=false, version = "0.5.0"}
 
 [features]
 default = ["vendored","std"]
 # Enables the components using memory allocation.
 # If no `std` flag, `alloc` crate is internally used instead. This flag is mainly for `no_std` build.
-alloc = []
+alloc = ["allocator-api2/alloc"]
 # Enables the components using `std` crate.
-std = ["alloc"]
+std = [
+    "alloc",
+    "allocator-api2/std"
+]
 # Build our own copy of the NGINX by default.
 # This could be disabled with `--no-default-features` to minimize the dependency
 # tree when building against an existing copy of the NGINX with the

examples/Cargo.toml

@@ -51,6 +51,11 @@ name = "async"
 path = "async.rs"
 crate-type = ["cdylib"]
 
+[[example]]
+name = "shared_dict"
+path = "shared_dict.rs"
+crate-type = ["cdylib"]
+
 [features]
 default = ["export-modules", "ngx/vendored"]
 # Generate `ngx_modules` table with module exports

examples/config

@@ -39,6 +39,14 @@ if [ $HTTP = YES ]; then
         ngx_rust_module
     fi
 
+    if :; then
+        ngx_module_name=ngx_http_shared_dict_module
+        ngx_module_libs=
+        ngx_rust_target_name=shared_dict
+
+        ngx_rust_module
+    fi
+
     if :; then
         ngx_module_name=ngx_http_upstream_custom_module
         ngx_module_libs=