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/*
This file is part of GNUnet.
Copyright (C) 2016 GNUnet e.V.
GNUnet is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published
by the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.
GNUnet is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Affero General Public License for more details.
*/
/**
* @file transport-testing-send.c
* @brief convenience transmission function for tests
* @author Christian Grothoff
*/
#include "transport-testing.h"
/**
* Acceptable transmission delay.
*/
#define TIMEOUT_TRANSMIT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30)
/**
* Return @a cx in @a cls.
*/
static void
find_cr (void *cls,
struct GNUNET_TRANSPORT_TESTING_ConnectRequest *cx)
{
struct GNUNET_TRANSPORT_TESTING_ConnectRequest **cr = cls;
if (GNUNET_NO == cx->connected)
return;
*cr = cx;
}
/**
* Send a test message of type @a mtype and size @a msize from
* peer @a sender to peer @a receiver. The peers should be
* connected when this function is called.
*
* @param sender the sending peer
* @param receiver the receiving peer
* @param mtype message type to use
* @param msize size of the message, at least `sizeof (struct GNUNET_TRANSPORT_TESTING_TestMessage)`
* @param num unique message number
* @param cont continuation to call after transmission
* @param cont_cls closure for @a cont
* @return #GNUNET_OK if message was queued,
* #GNUNET_NO if peers are not connected
* #GNUNET_SYSERR if @a msize is illegal
*/
int
GNUNET_TRANSPORT_TESTING_send (struct GNUNET_TRANSPORT_TESTING_PeerContext *sender,
struct GNUNET_TRANSPORT_TESTING_PeerContext *receiver,
uint16_t mtype,
uint16_t msize,
uint32_t num,
GNUNET_SCHEDULER_TaskCallback cont,
void *cont_cls)
{
struct GNUNET_TRANSPORT_TESTING_ConnectRequest *cr;
struct GNUNET_MQ_Envelope *env;
struct GNUNET_TRANSPORT_TESTING_TestMessage *test;
if (msize < sizeof (struct GNUNET_TRANSPORT_TESTING_TestMessage))
{
GNUNET_break (0);
return GNUNET_SYSERR;
}
cr = NULL;
GNUNET_TRANSPORT_TESTING_find_connecting_context (sender,
receiver,
&find_cr,
&cr);
if (NULL == cr)
GNUNET_TRANSPORT_TESTING_find_connecting_context (receiver,
sender,
&find_cr,
&cr);
if (NULL == cr)
{
GNUNET_break (0);
return GNUNET_NO;
}
if (NULL == cr->mq)
{
GNUNET_break (0);
return GNUNET_NO;
}
{
char *receiver_s = GNUNET_strdup (GNUNET_i2s (&receiver->id));
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
"Sending message from peer %u (`%s') -> peer %u (`%s') !\n",
sender->no,
GNUNET_i2s (&sender->id),
receiver->no,
receiver_s);
GNUNET_free (receiver_s);
}
env = GNUNET_MQ_msg_extra (test,
msize - sizeof (*test),
mtype);
test->num = htonl (num);
memset (&test[1],
num,
msize - sizeof (*test));
GNUNET_MQ_notify_sent (env,
cont,
cont_cls);
GNUNET_MQ_send (cr->mq,
env);
return GNUNET_OK;
}
/**
* Task that sends a test message from the
* first peer to the second peer.
*
* @param ccc context which should contain at least two peers, the
* first two of which should be currently connected
* @param size desired message size
* @param cont continuation to call after transmission
* @param cont_cls closure for @a cont
*/
static void
do_send (struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *ccc,
uint16_t size,
GNUNET_SCHEDULER_TaskCallback cont,
void *cont_cls)
{
int ret;
ccc->global_ret = GNUNET_SYSERR;
ret = GNUNET_TRANSPORT_TESTING_send (ccc->p[0],
ccc->p[1],
GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE,
size,
ccc->send_num_gen++,
cont,
cont_cls);
GNUNET_assert (GNUNET_SYSERR != ret);
if (GNUNET_NO == ret)
{
GNUNET_break (0);
ccc->global_ret = GNUNET_SYSERR;
GNUNET_SCHEDULER_shutdown ();
}
}
/**
* Task that sends a minimalistic test message from the
* first peer to the second peer.
*
* @param cls the `struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext`
* which should contain at least two peers, the first two
* of which should be currently connected
*/
void
GNUNET_TRANSPORT_TESTING_simple_send (void *cls)
{
struct GNUNET_TRANSPORT_TESTING_SendClosure *sc = cls;
int done;
size_t msize;
if (0 < sc->num_messages)
{
sc->num_messages--;
done = (0 == sc->num_messages);
}
else
{
done = 0; /* infinite loop */
}
msize = sizeof (struct GNUNET_TRANSPORT_TESTING_TestMessage);
if (NULL != sc->get_size_cb)
msize = sc->get_size_cb (sc->num_messages);
/* if this was the last message, call the continuation,
otherwise call this function again */
do_send (sc->ccc,
msize,
done ? sc->cont : &GNUNET_TRANSPORT_TESTING_simple_send,
done ? sc->cont_cls : sc);
}
/**
* Task that sends a large test message from the
* first peer to the second peer.
*
* @param cls the `struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext`
* which should contain at least two peers, the first two
* of which should be currently connected
*/
void
GNUNET_TRANSPORT_TESTING_large_send (void *cls)
{
struct GNUNET_TRANSPORT_TESTING_SendClosure *sc = cls;
int done;
size_t msize;
if (0 < sc->num_messages)
{
sc->num_messages--;
done = (0 == sc->num_messages);
}
else
{
done = 0; /* infinite loop */
}
msize = 2600;
if (NULL != sc->get_size_cb)
msize = sc->get_size_cb (sc->num_messages);
/* if this was the last message, call the continuation,
otherwise call this function again */
do_send (sc->ccc,
msize,
done ? sc->cont : &GNUNET_TRANSPORT_TESTING_large_send,
done ? sc->cont_cls : sc);
}
/* end of transport-testing-send.c */
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