libubus.h: add ubus_auto_shutdown()

[project/ubus.git] / examples / server.c

diff --git a/examples/server.c b/examples/server.c
index 529059c..e0cde0b 100644 (file)
--- a/examples/server.c
+++ b/examples/server.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011 Felix Fietkau <nbd@openwrt.org>
+ * Copyright (C) 2011-2014 Felix Fietkau <nbd@openwrt.org>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU Lesser General Public License version 2.1
@@ -12,8 +12,11 @@
  */
 
 #include <unistd.h>
+#include <signal.h>
 
+#include <libubox/blobmsg_json.h>
 #include "libubus.h"
+#include "count.h"
 
 static struct ubus_context *ctx;
 static struct ubus_subscriber test_event;
@@ -33,18 +36,46 @@ static const struct blobmsg_policy hello_policy[] = {
 struct hello_request {
        struct ubus_request_data req;
        struct uloop_timeout timeout;
+       int fd;
+       int idx;
        char data[];
 };
 
+static void test_hello_fd_reply(struct uloop_timeout *t)
+{
+       struct hello_request *req = container_of(t, struct hello_request, timeout);
+       char *data;
+
+       data = alloca(strlen(req->data) + 32);
+       sprintf(data, "msg%d: %s\n", ++req->idx, req->data);
+       if (write(req->fd, data, strlen(data)) < 0) {
+               close(req->fd);
+               free(req);
+               return;
+       }
+
+       uloop_timeout_set(&req->timeout, 1000);
+}
+
 static void test_hello_reply(struct uloop_timeout *t)
 {
        struct hello_request *req = container_of(t, struct hello_request, timeout);
+       int fds[2];
 
        blob_buf_init(&b, 0);
        blobmsg_add_string(&b, "message", req->data);
        ubus_send_reply(ctx, &req->req, b.head);
+
+       if (pipe(fds) == -1) {
+               fprintf(stderr, "Failed to create pipe\n");
+               return;
+       }
+       ubus_request_set_fd(ctx, &req->req, fds[0]);
        ubus_complete_deferred_request(ctx, &req->req, 0);
-       free(req);
+       req->fd = fds[1];
+
+       req->timeout.cb = test_hello_fd_reply;
+       test_hello_fd_reply(t);
 }
 
 static int test_hello(struct ubus_context *ctx, struct ubus_object *obj,
@@ -62,6 +93,9 @@ static int test_hello(struct ubus_context *ctx, struct ubus_object *obj,
                msgstr = blobmsg_data(tb[HELLO_MSG]);
 
        hreq = calloc(1, sizeof(*hreq) + strlen(format) + strlen(obj->name) + strlen(msgstr) + 1);
+       if (!hreq)
+               return UBUS_STATUS_UNKNOWN_ERROR;
+
        sprintf(hreq->data, format, obj->name, msgstr);
        ubus_defer_request(ctx, req, &hreq->req);
        hreq->timeout.cb = test_hello_reply;
@@ -72,11 +106,13 @@ static int test_hello(struct ubus_context *ctx, struct ubus_object *obj,
 
 enum {
        WATCH_ID,
+       WATCH_COUNTER,
        __WATCH_MAX
 };
 
 static const struct blobmsg_policy watch_policy[__WATCH_MAX] = {
        [WATCH_ID] = { .name = "id", .type = BLOBMSG_TYPE_INT32 },
+       [WATCH_COUNTER] = { .name = "counter", .type = BLOBMSG_TYPE_INT32 },
 };
 
 static void
@@ -86,6 +122,22 @@ test_handle_remove(struct ubus_context *ctx, struct ubus_subscriber *s,
        fprintf(stderr, "Object %08x went away\n", id);
 }
 
+static int
+test_notify(struct ubus_context *ctx, struct ubus_object *obj,
+           struct ubus_request_data *req, const char *method,
+           struct blob_attr *msg)
+{
+#if 0
+       char *str;
+
+       str = blobmsg_format_json(msg, true);
+       fprintf(stderr, "Received notification '%s': %s\n", method, str);
+       free(str);
+#endif
+
+       return 0;
+}
+
 static int test_watch(struct ubus_context *ctx, struct ubus_object *obj,
                      struct ubus_request_data *req, const char *method,
                      struct blob_attr *msg)
@@ -98,14 +150,54 @@ static int test_watch(struct ubus_context *ctx, struct ubus_object *obj,
                return UBUS_STATUS_INVALID_ARGUMENT;
 
        test_event.remove_cb = test_handle_remove;
+       test_event.cb = test_notify;
        ret = ubus_subscribe(ctx, &test_event, blobmsg_get_u32(tb[WATCH_ID]));
        fprintf(stderr, "Watching object %08x: %s\n", blobmsg_get_u32(tb[WATCH_ID]), ubus_strerror(ret));
        return ret;
 }
 
+enum {
+    COUNT_TO,
+    COUNT_STRING,
+    __COUNT_MAX
+};
+
+static const struct blobmsg_policy count_policy[__COUNT_MAX] = {
+    [COUNT_TO] = { .name = "to", .type = BLOBMSG_TYPE_INT32 },
+    [COUNT_STRING] = { .name = "string", .type = BLOBMSG_TYPE_STRING },
+};
+
+static int test_count(struct ubus_context *ctx, struct ubus_object *obj,
+                     struct ubus_request_data *req, const char *method,
+                     struct blob_attr *msg)
+{
+       struct blob_attr *tb[__COUNT_MAX];
+       char *s1, *s2;
+       uint32_t num;
+
+       blobmsg_parse(count_policy, __COUNT_MAX, tb, blob_data(msg), blob_len(msg));
+       if (!tb[COUNT_TO] || !tb[COUNT_STRING])
+               return UBUS_STATUS_INVALID_ARGUMENT;
+
+       num = blobmsg_get_u32(tb[COUNT_TO]);
+       s1 = blobmsg_get_string(tb[COUNT_STRING]);
+       s2 = count_to_number(num);
+       if (!s1 || !s2) {
+               free(s2);
+               return UBUS_STATUS_UNKNOWN_ERROR;
+       }
+       blob_buf_init(&b, 0);
+       blobmsg_add_u32(&b, "rc", strcmp(s1, s2));
+       ubus_send_reply(ctx, req, b.head);
+       free(s2);
+
+       return 0;
+}
+
 static const struct ubus_method test_methods[] = {
        UBUS_METHOD("hello", test_hello, hello_policy),
        UBUS_METHOD("watch", test_watch, watch_policy),
+       UBUS_METHOD("count", test_count, count_policy),
 };
 
 static struct ubus_object_type test_object_type =
@@ -152,6 +244,7 @@ int main(int argc, char **argv)
        argv += optind;
 
        uloop_init();
+       signal(SIGPIPE, SIG_IGN);
 
        ctx = ubus_connect(ubus_socket);
        if (!ctx) {