Unit application library.

Library now used in all language modules.
Old 'nxt_app_*' code removed.

See src/test/nxt_unit_app_test.c for usage sample.

src/test/nxt_unit_app_test.c

@@ -0,0 +1,191 @@
+
+/*
+ * Copyright (C) NGINX, Inc.
+ */
+
+#include <nxt_unit.h>
+#include <nxt_unit_request.h>
+#include <nxt_clang.h>
+
+
+#define CONTENT_TYPE  "Content-Type"
+#define TEXT_PLAIN    "text/plain"
+#define HELLO_WORLD   "Hello world!\n"
+
+#define NEW_LINE      "\n"
+
+#define REQUEST_DATA  "Request data:\n"
+#define METHOD        "  Method: "
+#define PROTOCOL      "  Protocol: "
+#define REMOTE_ADDR   "  Remote addr: "
+#define LOCAL_ADDR    "  Local addr: "
+#define TARGET        "  Target: "
+#define PATH          "  Path: "
+#define QUERY         "  Query: "
+#define FIELDS        "  Fields:\n"
+#define FIELD_PAD     "    "
+#define FIELD_SEP     ": "
+#define BODY          "  Body:\n"
+
+
+static inline char *
+copy(char *p, const void *src, uint32_t len)
+{
+    memcpy(p, src, len);
+
+    return p + len;
+}
+
+
+static void
+greeting_app_request_handler(nxt_unit_request_info_t *req)
+{
+    int                 rc;
+    char                *p;
+    ssize_t             res;
+    uint32_t            i;
+    nxt_unit_buf_t      *buf;
+    nxt_unit_field_t    *f;
+    nxt_unit_request_t  *r;
+
+    rc = nxt_unit_response_init(req, 200 /* Status code. */,
+                                1 /* Number of response headers. */,
+                                nxt_length(CONTENT_TYPE)
+                                + nxt_length(TEXT_PLAIN)
+                                + nxt_length(HELLO_WORLD));
+    if (nxt_slow_path(rc != NXT_UNIT_OK)) {
+        goto fail;
+    }
+
+    rc = nxt_unit_response_add_field(req,
+                                     CONTENT_TYPE, nxt_length(CONTENT_TYPE),
+                                     TEXT_PLAIN, nxt_length(TEXT_PLAIN));
+    if (nxt_slow_path(rc != NXT_UNIT_OK)) {
+        goto fail;
+    }
+
+    rc = nxt_unit_response_add_content(req, HELLO_WORLD,
+                                       nxt_length(HELLO_WORLD));
+    if (nxt_slow_path(rc != NXT_UNIT_OK)) {
+        goto fail;
+    }
+
+    rc = nxt_unit_response_send(req);
+    if (nxt_slow_path(rc != NXT_UNIT_OK)) {
+        goto fail;
+    }
+
+    r = req->request;
+
+    buf = nxt_unit_response_buf_alloc(req, (req->request_buf->end
+                                            - req->request_buf->start)
+                                      + nxt_length(REQUEST_DATA)
+                                      + nxt_length(METHOD)
+                                      + nxt_length(NEW_LINE)
+                                      + nxt_length(PROTOCOL)
+                                      + nxt_length(NEW_LINE)
+                                      + nxt_length(REMOTE_ADDR)
+                                      + nxt_length(NEW_LINE)
+                                      + nxt_length(LOCAL_ADDR)
+                                      + nxt_length(NEW_LINE)
+                                      + nxt_length(TARGET)
+                                      + nxt_length(NEW_LINE)
+                                      + nxt_length(PATH)
+                                      + nxt_length(NEW_LINE)
+                                      + nxt_length(QUERY)
+                                      + nxt_length(NEW_LINE)
+                                      + nxt_length(FIELDS)
+                                      + r->fields_count * (
+                                          nxt_length(FIELD_PAD)
+                                          + nxt_length(FIELD_SEP))
+                                      + nxt_length(BODY));
+    if (nxt_slow_path(buf == NULL)) {
+        rc = NXT_UNIT_ERROR;
+
+        goto fail;
+    }
+
+    p = buf->free;
+
+    p = copy(p, REQUEST_DATA, nxt_length(REQUEST_DATA));
+
+    p = copy(p, METHOD, nxt_length(METHOD));
+    p = copy(p, nxt_unit_sptr_get(&r->method), r->method_length);
+    *p++ = '\n';
+
+    p = copy(p, PROTOCOL, nxt_length(PROTOCOL));
+    p = copy(p, nxt_unit_sptr_get(&r->version), r->version_length);
+    *p++ = '\n';
+
+    p = copy(p, REMOTE_ADDR, nxt_length(REMOTE_ADDR));
+    p = copy(p, nxt_unit_sptr_get(&r->remote), r->remote_length);
+    *p++ = '\n';
+
+    p = copy(p, LOCAL_ADDR, nxt_length(LOCAL_ADDR));
+    p = copy(p, nxt_unit_sptr_get(&r->local), r->local_length);
+    *p++ = '\n';
+
+    p = copy(p, TARGET, nxt_length(TARGET));
+    p = copy(p, nxt_unit_sptr_get(&r->target), r->target_length);
+    *p++ = '\n';
+
+    p = copy(p, PATH, nxt_length(PATH));
+    p = copy(p, nxt_unit_sptr_get(&r->path), r->path_length);
+    *p++ = '\n';
+
+    if (r->query.offset) {
+        p = copy(p, QUERY, nxt_length(QUERY));
+        p = copy(p, nxt_unit_sptr_get(&r->query), r->query_length);
+        *p++ = '\n';
+    }
+
+    p = copy(p, FIELDS, nxt_length(FIELDS));
+
+    for (i = 0; i < r->fields_count; i++) {
+        f = r->fields + i;
+
+        p = copy(p, FIELD_PAD, nxt_length(FIELD_PAD));
+        p = copy(p, nxt_unit_sptr_get(&f->name), f->name_length);
+        p = copy(p, FIELD_SEP, nxt_length(FIELD_SEP));
+        p = copy(p, nxt_unit_sptr_get(&f->value), f->value_length);
+        *p++ = '\n';
+    }
+
+    if (r->content_length > 0) {
+        p = copy(p, BODY, nxt_length(BODY));
+
+        res = nxt_unit_request_read(req, buf->free, buf->end - buf->free);
+        buf->free += res;
+
+    }
+
+    buf->free = p;
+
+    rc = nxt_unit_buf_send(buf);
+
+fail:
+
+    nxt_unit_request_done(req, rc);
+}
+
+int
+main()
+{
+    nxt_unit_ctx_t   *ctx;
+    nxt_unit_init_t  init;
+
+    memset(&init, 0, sizeof(nxt_unit_init_t));
+
+    init.callbacks.request_handler = greeting_app_request_handler;
+
+    ctx = nxt_unit_init(&init);
+    if (ctx == NULL) {
+        return 1;
+    }
+
+    nxt_unit_run(ctx);
+
+    nxt_unit_done(ctx);
+
+    return 0;
+}