Introduced a library of common functionality for the modules.

1 files changed, 95 insertions, 0 deletions

diff --git a/nginx/ngx_js.c b/nginx/ngx_js.c
new file mode 100644
index 00000000..d5e9a4e0
--- /dev/null
+++ b/nginx/ngx_js.c
@@ -0,0 +1,95 @@
+
+/*
+ * Copyright (C) Roman Arutyunyan
+ * Copyright (C) Dmitry Volyntsev
+ * Copyright (C) NGINX, Inc.
+ */
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+#include "ngx_js.h"
+
+
+ngx_int_t
+ngx_js_call(njs_vm_t *vm, ngx_str_t *fname, njs_opaque_value_t *value,
+    ngx_log_t *log)
+{
+    njs_str_t        name, exception;
+    njs_function_t  *func;
+
+    name.start = fname->data;
+    name.length = fname->len;
+
+    func = njs_vm_function(vm, &name);
+    if (func == NULL) {
+        ngx_log_error(NGX_LOG_ERR, log, 0,
+                      "js function \"%V\" not found", fname);
+        return NGX_ERROR;
+    }
+
+    if (njs_vm_call(vm, func, njs_value_arg(value), 1) != NJS_OK) {
+        njs_vm_retval_string(vm, &exception);
+
+        ngx_log_error(NGX_LOG_ERR, log, 0,
+                      "js exception: %*s", exception.length, exception.start);
+
+        return NGX_ERROR;
+    }
+
+    if (njs_vm_pending(vm)) {
+        return NGX_AGAIN;
+    }
+
+    return NGX_OK;
+}
+
+
+njs_int_t
+ngx_js_ext_string(njs_vm_t *vm, njs_object_prop_t *prop, njs_value_t *value,
+    njs_value_t *setval, njs_value_t *retval)
+{
+    char       *p;
+    ngx_str_t  *field;
+
+    p = njs_vm_external(vm, value);
+    if (p == NULL) {
+        njs_value_undefined_set(retval);
+        return NJS_DECLINED;
+    }
+
+    field = (ngx_str_t *) (p + njs_vm_prop_magic32(prop));
+
+    return njs_vm_value_string_set(vm, retval, field->data, field->len);
+}
+
+
+ngx_int_t
+ngx_js_integer(njs_vm_t *vm, njs_value_t *value, ngx_int_t *n)
+{
+    if (!njs_value_is_valid_number(value)) {
+        njs_vm_error(vm, "is not a number");
+        return NGX_ERROR;
+    }
+
+    *n = njs_value_number(value);
+
+    return NGX_OK;
+}
+
+
+ngx_int_t
+ngx_js_string(njs_vm_t *vm, njs_value_t *value, njs_str_t *str)
+{
+    if (value != NULL && !njs_value_is_null_or_undefined(value)) {
+        if (njs_vm_value_to_string(vm, str, value) == NJS_ERROR) {
+            return NGX_ERROR;
+        }
+
+    } else {
+        str->start = NULL;
+        str->length = 0;
+    }
+
+    return NGX_OK;
+}