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.

1 files changed, 207 insertions, 0 deletions

diff --git a/src/go/unit/nxt_cgo_lib.c b/src/go/unit/nxt_cgo_lib.c
new file mode 100644
index 00000000..9c080730
--- /dev/null
+++ b/src/go/unit/nxt_cgo_lib.c
@@ -0,0 +1,207 @@
+
+/*
+ * Copyright (C) Max Romanov
+ * Copyright (C) NGINX, Inc.
+ */
+
+#include "_cgo_export.h"
+
+#include <nxt_main.h>
+#include <nxt_unit.h>
+#include <nxt_unit_request.h>
+
+
+static void nxt_cgo_request_handler(nxt_unit_request_info_t *req);
+static nxt_cgo_str_t *nxt_cgo_str_init(nxt_cgo_str_t *dst,
+    nxt_unit_sptr_t *sptr, uint32_t length);
+static int nxt_cgo_add_port(nxt_unit_ctx_t *, nxt_unit_port_t *port);
+static void nxt_cgo_remove_port(nxt_unit_ctx_t *, nxt_unit_port_id_t *port_id);
+static ssize_t nxt_cgo_port_send(nxt_unit_ctx_t *, nxt_unit_port_id_t *port_id,
+    const void *buf, size_t buf_size, const void *oob, size_t oob_size);
+static ssize_t nxt_cgo_port_recv(nxt_unit_ctx_t *, nxt_unit_port_id_t *port_id,
+    void *buf, size_t buf_size, void *oob, size_t oob_size);
+
+int
+nxt_cgo_run(uintptr_t handler)
+{
+    int              rc;
+    nxt_unit_ctx_t   *ctx;
+    nxt_unit_init_t  init;
+
+    memset(&init, 0, sizeof(init));
+
+    init.callbacks.request_handler = nxt_cgo_request_handler;
+    init.callbacks.add_port        = nxt_cgo_add_port;
+    init.callbacks.remove_port     = nxt_cgo_remove_port;
+    init.callbacks.port_send       = nxt_cgo_port_send;
+    init.callbacks.port_recv       = nxt_cgo_port_recv;
+
+    init.data = (void *) handler;
+
+    ctx = nxt_unit_init(&init);
+    if (nxt_slow_path(ctx == NULL)) {
+        return NXT_UNIT_ERROR;
+    }
+
+    rc = nxt_unit_run(ctx);
+
+    nxt_unit_done(ctx);
+
+    return rc;
+}
+
+
+static void
+nxt_cgo_request_handler(nxt_unit_request_info_t *req)
+{
+    uint32_t            i;
+    uintptr_t           go_req;
+    nxt_cgo_str_t       method, uri, name, value, proto, host, remote_addr;
+    nxt_unit_field_t    *f;
+    nxt_unit_request_t  *r;
+
+    r = req->request;
+
+    go_req = nxt_go_request_create((uintptr_t) req,
+                nxt_cgo_str_init(&method, &r->method, r->method_length),
+                nxt_cgo_str_init(&uri, &r->target, r->target_length));
+
+    nxt_go_request_set_proto(go_req,
+        nxt_cgo_str_init(&proto, &r->version, r->version_length), 1, 1);
+
+    for (i = 0; i < r->fields_count; i++) {
+        f = &r->fields[i];
+
+        nxt_go_request_add_header(go_req,
+            nxt_cgo_str_init(&name, &f->name, f->name_length),
+            nxt_cgo_str_init(&value, &f->value, f->value_length));
+
+        if (f->hash == NXT_UNIT_HASH_HOST) {
+            host = value;
+        }
+    }
+
+    nxt_go_request_set_content_length(go_req, r->content_length);
+    nxt_go_request_set_host(go_req, &host);
+    nxt_go_request_set_remote_addr(go_req,
+        nxt_cgo_str_init(&remote_addr, &r->remote, r->remote_length));
+
+    nxt_go_request_handler(go_req, (uintptr_t) req->unit->data);
+}
+
+
+static nxt_cgo_str_t *
+nxt_cgo_str_init(nxt_cgo_str_t *dst, nxt_unit_sptr_t *sptr, uint32_t length)
+{
+    dst->length = length;
+    dst->start = nxt_unit_sptr_get(sptr);
+
+    return dst;
+}
+
+
+static int
+nxt_cgo_add_port(nxt_unit_ctx_t *ctx, nxt_unit_port_t *port)
+{
+    nxt_go_add_port(port->id.pid, port->id.id,
+                    port->in_fd, port->out_fd);
+
+    return nxt_unit_add_port(ctx, port);
+}
+
+
+static void
+nxt_cgo_remove_port(nxt_unit_ctx_t *ctx, nxt_unit_port_id_t *port_id)
+{
+    nxt_go_remove_port(port_id->pid, port_id->id);
+
+    nxt_unit_remove_port(ctx, port_id);
+}
+
+
+static ssize_t
+nxt_cgo_port_send(nxt_unit_ctx_t *ctx, nxt_unit_port_id_t *port_id,
+    const void *buf, size_t buf_size, const void *oob, size_t oob_size)
+{
+    return nxt_go_port_send(port_id->pid, port_id->id,
+                            (void *) buf, buf_size, (void *) oob, oob_size);
+}
+
+
+static ssize_t
+nxt_cgo_port_recv(nxt_unit_ctx_t *ctx, nxt_unit_port_id_t *port_id,
+    void *buf, size_t buf_size, void *oob, size_t oob_size)
+{
+    return nxt_go_port_recv(port_id->pid, port_id->id,
+                            buf, buf_size, oob, oob_size);
+}
+
+
+int
+nxt_cgo_response_create(uintptr_t req, int status, int fields,
+    uint32_t fields_size)
+{
+    return nxt_unit_response_init((nxt_unit_request_info_t *) req,
+                                  status, fields, fields_size);
+}
+
+
+int
+nxt_cgo_response_add_field(uintptr_t req, uintptr_t name, uint8_t name_len,
+    uintptr_t value, uint32_t value_len)
+{
+    return nxt_unit_response_add_field((nxt_unit_request_info_t *) req,
+                                       (char *) name, name_len,
+                                       (char *) value, value_len);
+}
+
+
+int
+nxt_cgo_response_send(uintptr_t req)
+{
+    return nxt_unit_response_send((nxt_unit_request_info_t *) req);
+}
+
+
+ssize_t
+nxt_cgo_response_write(uintptr_t req, uintptr_t start, uint32_t len)
+{
+    int  rc;
+
+    rc = nxt_unit_response_write((nxt_unit_request_info_t *) req,
+                                 (void *) start, len);
+    if (nxt_slow_path(rc != NXT_UNIT_OK)) {
+        return -1;
+    }
+
+    return len;
+}
+
+
+ssize_t
+nxt_cgo_request_read(uintptr_t req, uintptr_t dst, uint32_t dst_len)
+{
+    return nxt_unit_request_read((nxt_unit_request_info_t *) req,
+                                 (void *) dst, dst_len);
+}
+
+
+int
+nxt_cgo_request_close(uintptr_t req)
+{
+    return 0;
+}
+
+
+void
+nxt_cgo_request_done(uintptr_t req, int res)
+{
+    nxt_unit_request_done((nxt_unit_request_info_t *) req, res);
+}
+
+
+void
+nxt_cgo_warn(uintptr_t msg, uint32_t msg_len)
+{
+    nxt_unit_warn(NULL, ".*s", (int) msg_len, (char *) msg);
+}