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/* Copyright (c) 2017-2018 Dovecot authors, see the included COPYING file */
#include "test-lib.h"
#include "ioloop.h"
#include "str.h"
#include "istream.h"
#include "istream-multiplex.h"
#include "ostream.h"
#include "ostream-multiplex.h"
#include "ostream.h"
#include "randgen.h"
#include <unistd.h>
struct test_channel {
int fds[2];
unsigned int cid;
struct istream *in;
struct ostream *out;
struct io *io;
struct istream *in_alt;
struct ostream *out_alt;
struct io *io_alt;
buffer_t *received;
buffer_t *received_alt;
unsigned int counter;
};
static struct test_channel test_channel[2];
static void test_multiplex_channel_write(struct test_channel *channel)
{
unsigned char buf[128];
size_t len = i_rand_limit(sizeof(buf));
random_fill(buf, len);
o_stream_nsend(channel->out, buf, len);
o_stream_nsend(channel->out_alt, buf, len);
}
static void test_multiplex_stream_write(struct ostream *channel ATTR_UNUSED)
{
if (test_channel[0].received->used > 1000 &&
test_channel[1].received->used > 1000)
io_loop_stop(current_ioloop);
else
test_multiplex_channel_write(&test_channel[i_rand_limit(2)]);
}
static void test_istream_multiplex_stream_read(struct test_channel *channel)
{
const unsigned char *data = NULL;
size_t siz = 0;
if (i_stream_read(channel->in) > 0) {
data = i_stream_get_data(channel->in, &siz);
buffer_append(channel->received, data, siz);
i_stream_skip(channel->in, siz);
}
}
static void test_istream_read_alt(struct test_channel *channel)
{
const unsigned char *data = NULL;
size_t siz = 0;
if (i_stream_read(channel->in_alt) > 0) {
data = i_stream_get_data(channel->in_alt, &siz);
buffer_append(channel->received_alt, data, siz);
i_stream_skip(channel->in_alt, siz);
}
}
static void setup_channel(struct test_channel *channel,
struct istream *is, struct ostream *os)
{
/* setup first channel */
channel->in = is;
channel->out = os;
channel->io = io_add_istream(is, test_istream_multiplex_stream_read,
channel);
test_assert(pipe(channel->fds) == 0);
fd_set_nonblock(channel->fds[0], TRUE);
fd_set_nonblock(channel->fds[1], TRUE);
channel->in_alt = i_stream_create_fd(channel->fds[0], SIZE_MAX);
channel->out_alt = o_stream_create_fd(channel->fds[1], IO_BLOCK_SIZE);
channel->io_alt = io_add_istream(channel->in_alt, test_istream_read_alt,
channel);
channel->received = buffer_create_dynamic(default_pool, 32768);
channel->received_alt = buffer_create_dynamic(default_pool, 32768);
}
static void teardown_channel(struct test_channel *channel)
{
test_istream_read_alt(channel);
test_assert(memcmp(channel->received->data,
channel->received_alt->data,
channel->received->used) == 0);
test_assert(channel->received->used == channel->received_alt->used);
buffer_free(&channel->received);
buffer_free(&channel->received_alt);
io_remove(&channel->io);
io_remove(&channel->io_alt);
i_stream_unref(&channel->in);
test_assert(o_stream_finish(channel->out) > 0);
o_stream_unref(&channel->out);
i_stream_unref(&channel->in_alt);
test_assert(o_stream_finish(channel->out_alt) > 0);
o_stream_unref(&channel->out_alt);
i_close_fd(&channel->fds[0]);
i_close_fd(&channel->fds[1]);
}
static void test_multiplex_stream(void) {
test_begin("test multiplex (stream)");
struct ioloop *ioloop = io_loop_create();
io_loop_set_current(ioloop);
int fds[2];
test_assert(pipe(fds) == 0);
fd_set_nonblock(fds[0], TRUE);
fd_set_nonblock(fds[1], TRUE);
struct ostream *os = o_stream_create_fd(fds[1], SIZE_MAX);
struct istream *is = i_stream_create_fd(fds[0], SIZE_MAX);
struct istream *ichan0 = i_stream_create_multiplex(is, SIZE_MAX);
struct istream *ichan1 = i_stream_multiplex_add_channel(ichan0, 1);
i_stream_unref(&is);
struct ostream *ochan0 = o_stream_create_multiplex(os, 1024);
struct ostream *ochan1 = o_stream_multiplex_add_channel(ochan0, 1);
o_stream_unref(&os);
struct io *io = io_add(fds[1], IO_WRITE, test_multiplex_stream_write, os);
setup_channel(&test_channel[0], ichan0, ochan0);
setup_channel(&test_channel[1], ichan1, ochan1);
test_channel[0].cid = 0;
test_channel[1].cid = 1;
io_loop_run(current_ioloop);
io_remove(&io);
teardown_channel(&test_channel[0]);
teardown_channel(&test_channel[1]);
io_loop_destroy(&ioloop);
i_close_fd(&fds[0]);
i_close_fd(&fds[1]);
test_end();
}
void test_multiplex(void) {
random_init();
test_multiplex_stream();
random_deinit();
}
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