client.c File Reference

#include <sys/time.h>
#include <unistd.h>
#include <libubox/ustream.h>
#include "libubus.h"
#include "count.h"

Go to the source code of this file.

Enumerations
enum	{ RETURN_CODE , __RETURN_MAX }

Functions
static void	test_client_subscribe_cb (struct ubus_context *ctx, struct ubus_object *obj)
static void	test_client_notify_cb (struct uloop_timeout *timeout)
static void	test_count_data_cb (struct ubus_request *req, int type, struct blob_attr *msg)
static void	test_count (struct uloop_timeout *timeout)
static void	test_client_fd_data_cb (struct ustream *s, int bytes)
static void	test_client_fd_cb (struct ubus_request *req, int fd)
static void	test_client_complete_cb (struct ubus_request *req, int ret)
static void	client_main (void)
int	main (int argc, char **argv)

Variables
static struct ubus_context *	ctx
static struct blob_buf	b
static struct ubus_object	test_client_object
static const struct blobmsg_policy	return_policy [__RETURN_MAX]
static struct uloop_timeout	notify_timer
static struct uloop_timeout	count_timer

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
RETURN_CODE
__RETURN_MAX

Definition at line 59 of file client.c.

     {
        RETURN_CODE,
        __RETURN_MAX,
};

Function Documentation

client_main()

static void client_main ( void  )

static

Definition at line 174 of file client.c.

{
        static struct ubus_request req;
        uint32_t id;
        int ret;
 
        ret = ubus_add_object(ctx, &test_client_object);
        if (ret) {
                fprintf(stderr, "Failed to add_object object: %s\n", ubus_strerror(ret));
                return;
        }
 
        if (ubus_lookup_id(ctx, "test", &id)) {
                fprintf(stderr, "Failed to look up test object\n");
                return;
        }
 
        blob_buf_init(&b, 0);
        blobmsg_add_u32(&b, "id", test_client_object.id);
        ubus_invoke(ctx, id, "watch", b.head, NULL, 0, 3000);
        test_client_notify_cb(&notify_timer);
 
        blob_buf_init(&b, 0);
        blobmsg_add_string(&b, "msg", "blah");
        ubus_invoke_async(ctx, id, "hello", b.head, &req);
        req.fd_cb = test_client_fd_cb;
        req.complete_cb = test_client_complete_cb;
        ubus_complete_request_async(ctx, &req);
 
        uloop_timeout_set(&count_timer, 2000);
 
        uloop_run();
}

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main()

int main	(	int	argc,
		char **	argv
	)

Definition at line 208 of file client.c.

{
        const char *ubus_socket = NULL;
        int ch;
 
        while ((ch = getopt(argc, argv, "cs:")) != -1) {
                switch (ch) {
                case 's':
                        ubus_socket = optarg;
                        break;
                default:
                        break;
                }
        }
 
        uloop_init();
 
        ctx = ubus_connect(ubus_socket);
        if (!ctx) {
                fprintf(stderr, "Failed to connect to ubus\n");
                return -1;
        }
 
        ubus_add_uloop(ctx);
 
        client_main();
 
        ubus_free(ctx);
        uloop_done();
 
        return 0;
}

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test_client_complete_cb()

static void test_client_complete_cb ( struct ubus_request *  req, int  ret  )

static

Definition at line 169 of file client.c.

{
        fprintf(stderr, "completed request, ret: %d\n", ret);
}

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test_client_fd_cb()

static void test_client_fd_cb ( struct ubus_request *  req, int  fd  )

static

Definition at line 159 of file client.c.

{
        static struct ustream_fd test_fd;
 
        fprintf(stderr, "Got fd from the server, watching...\n");
 
        test_fd.stream.notify_read = test_client_fd_data_cb;
        ustream_fd_init(&test_fd, fd);
}

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test_client_fd_data_cb()

static void test_client_fd_data_cb ( struct ustream *  s, int  bytes  )

static

Definition at line 141 of file client.c.

{
        char *data, *sep;
        int len;
 
        data = ustream_get_read_buf(s, &len);
        if (len < 1)
                return;
 
        sep = strchr(data, '\n');
        if (!sep)
                return;
 
        *sep = 0;
        fprintf(stderr, "Got line: %s\n", data);
        ustream_consume(s, sep + 1 - data);
}

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test_client_notify_cb()

static void test_client_notify_cb ( struct uloop_timeout *  timeout )

static

Definition at line 34 of file client.c.

{
        static int counter = 0;
        int err;
        struct timeval tv1, tv2;
        int max = 1000;
        long delta;
        int i = 0;
 
        blob_buf_init(&b, 0);
        blobmsg_add_u32(&b, "counter", counter++);
 
        gettimeofday(&tv1, NULL);
        for (i = 0; i < max; i++)
                err = ubus_notify(ctx, &test_client_object, "ping", b.head, 1000);
        gettimeofday(&tv2, NULL);
        if (err)
                fprintf(stderr, "Notify failed: %s\n", ubus_strerror(err));
 
        delta = (tv2.tv_sec - tv1.tv_sec) * 1000000 + (tv2.tv_usec - tv1.tv_usec);
        fprintf(stderr, "Avg time per iteration: %ld usec\n", delta / max);
 
        uloop_timeout_set(timeout, 1000);
}

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test_client_subscribe_cb()

static void test_client_subscribe_cb ( struct ubus_context *  ctx, struct ubus_object *  obj  )

static

Definition at line 25 of file client.c.

{
        fprintf(stderr, "Subscribers active: %d\n", obj->has_subscribers);
}

test_count()

static void test_count ( struct uloop_timeout *  timeout )

static

Definition at line 88 of file client.c.

{
        enum {
                COUNT_TO_MIN = 10000,
                COUNT_TO_MAX = 1000000,
                PROGRESSION  = 100,
        };
 
        uint32_t id;
        static uint32_t count_to = 100000;
        static int count_progression = PROGRESSION;
        char *s;
 
        if (count_to <= COUNT_TO_MIN)
                count_progression = PROGRESSION;
        else if (count_to >= COUNT_TO_MAX)
                count_progression = -PROGRESSION;
 
        count_to += count_progression;
 
        s = count_to_number(count_to);
        if (!s) {
                fprintf(stderr, "Could not allocate memory to count up to '%u'\n", count_to);
                return;
        }
 
        fprintf(stderr, "Sending count up to '%u'; string has length '%u'\n",
                count_to, (uint32_t)strlen(s));
        blob_buf_init(&b, 0);
        blobmsg_add_u32(&b, "to", count_to);
        blobmsg_add_string(&b, "string", s);
 
        if (ubus_lookup_id(ctx, "test", &id)) {
                free(s);
                fprintf(stderr, "Failed to look up test object\n");
                return;
        }
 
        ubus_invoke(ctx, id, "count", b.head, test_count_data_cb, &count_to, 5000);
 
        free(s);
 
        uloop_timeout_set(timeout, 2000);
}

test_count_data_cb()

static void test_count_data_cb ( struct ubus_request *  req, int  type, struct blob_attr *  msg  )

static

Definition at line 68 of file client.c.

{
        struct blob_attr *tb[__RETURN_MAX];
        int rc;
        uint32_t count_to = *(uint32_t *)req->priv;
 
        blobmsg_parse(return_policy, __RETURN_MAX, tb, blob_data(msg), blob_len(msg));
 
        if (!tb[RETURN_CODE]) {
                fprintf(stderr, "No return code received from server\n");
                return;
        }
        rc = blobmsg_get_u32(tb[RETURN_CODE]);
        if (rc)
                fprintf(stderr, "Corruption of data with count up to '%u'\n", count_to);
        else
                fprintf(stderr, "Server validated our count up to '%u'\n", count_to);
}

Variable Documentation

b

struct blob_buf b

static

Definition at line 22 of file client.c.

count_timer

struct uloop_timeout count_timer

static

Initial value:

= {
        .cb = test_count,
}

Definition at line 88 of file client.c.

ctx

struct ubus_context* ctx

static

Definition at line 22 of file client.c.

notify_timer

struct uloop_timeout notify_timer

static

Initial value:

= {
        .cb = test_client_notify_cb,
}

Definition at line 88 of file client.c.

return_policy

const struct blobmsg_policy return_policy[__RETURN_MAX]

static

Initial value:

= {
        [RETURN_CODE] = { .name = "rc", .type = BLOBMSG_TYPE_INT32 },
}

Definition at line 34 of file client.c.

test_client_object

struct ubus_object test_client_object

static

Initial value:

= {
        .subscribe_cb = test_client_subscribe_cb,
}

Definition at line 25 of file client.c.