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glib/gio/tests/unix-streams.c
Philip Withnall 99a325356d tests: Fix a compiler warning about string+int arithmetic 
Clang warns about string+int not appending to the string (to try and
catch newbie mistakes). While this test didn’t expect that to happen, it
was substituting the same constant string in multiple places for no good
reason. Switch to a single static const string, which should also fix
the compiler warning.

We have to define the string length since it’s used in various
stack-allocated array lengths. This is the easiest fix without more
major refactoring of the test to be less 90s.

Also make things a bit more static.

Signed-off-by: Philip Withnall <withnall@endlessm.com>
2020-02-24 16:18:58 +00:00

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/* GLib testing framework examples and tests
* Copyright (C) 2008 Red Hat, Inc
*
* This work is provided "as is"; redistribution and modification
* in whole or in part, in any medium, physical or electronic is
* permitted without restriction.
*
* This work 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.
*
* In no event shall the authors or contributors be liable for any
* direct, indirect, incidental, special, exemplary, or consequential
* damages (including, but not limited to, procurement of substitute
* goods or services; loss of use, data, or profits; or business
* interruption) however caused and on any theory of liability, whether
* in contract, strict liability, or tort (including negligence or
* otherwise) arising in any way out of the use of this software, even
* if advised of the possibility of such damage.
*/
#include <gio/gio.h>
#include <gio/gunixinputstream.h>
#include <gio/gunixoutputstream.h>
#include <glib.h>
#include <glib/glib-unix.h>
#include <signal.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
/* sizeof(DATA) will give the number of bytes in the array, plus the terminating nul */
static const gchar DATA[] = "abcdefghijklmnopqrstuvwxyz";
int writer_pipe[2], reader_pipe[2];
GCancellable *writer_cancel, *reader_cancel, *main_cancel;
GMainLoop *loop;
static gpointer
writer_thread (gpointer user_data)
{
GOutputStream *out;
gssize nwrote, offset;
GError *err = NULL;
out = g_unix_output_stream_new (writer_pipe[1], TRUE);
do
{
g_usleep (10);
offset = 0;
while (offset < (gssize) sizeof (DATA))
{
nwrote = g_output_stream_write (out, DATA + offset,
sizeof (DATA) - offset,
writer_cancel, &err);
if (nwrote <= 0 || err != NULL)
break;
offset += nwrote;
}
g_assert (nwrote > 0 || err != NULL);
}
while (err == NULL);
if (g_cancellable_is_cancelled (writer_cancel))
{
g_clear_error (&err);
g_cancellable_cancel (main_cancel);
g_object_unref (out);
return NULL;
}
g_warning ("writer: %s", err->message);
g_assert_not_reached ();
}
static gpointer
reader_thread (gpointer user_data)
{
GInputStream *in;
gssize nread = 0, total;
GError *err = NULL;
char buf[sizeof (DATA)];
in = g_unix_input_stream_new (reader_pipe[0], TRUE);
do
{
total = 0;
while (total < (gssize) sizeof (DATA))
{
nread = g_input_stream_read (in, buf + total, sizeof (buf) - total,
reader_cancel, &err);
if (nread <= 0 || err != NULL)
break;
total += nread;
}
if (err)
break;
if (nread == 0)
{
g_assert (err == NULL);
/* pipe closed */
g_object_unref (in);
return NULL;
}
g_assert_cmpstr (buf, ==, DATA);
g_assert (!g_cancellable_is_cancelled (reader_cancel));
}
while (err == NULL);
g_warning ("reader: %s", err->message);
g_assert_not_reached ();
}
static char main_buf[sizeof (DATA)];
static gssize main_len, main_offset;
static void main_thread_read (GObject *source, GAsyncResult *res, gpointer user_data);
static void main_thread_skipped (GObject *source, GAsyncResult *res, gpointer user_data);
static void main_thread_wrote (GObject *source, GAsyncResult *res, gpointer user_data);
static void
do_main_cancel (GOutputStream *out)
{
g_output_stream_close (out, NULL, NULL);
g_main_loop_quit (loop);
}
static void
main_thread_skipped (GObject *source, GAsyncResult *res, gpointer user_data)
{
GInputStream *in = G_INPUT_STREAM (source);
GOutputStream *out = user_data;
GError *err = NULL;
gssize nskipped;
nskipped = g_input_stream_skip_finish (in, res, &err);
if (g_cancellable_is_cancelled (main_cancel))
{
do_main_cancel (out);
return;
}
g_assert_no_error (err);
main_offset += nskipped;
if (main_offset == main_len)
{
main_offset = 0;
g_output_stream_write_async (out, main_buf, main_len,
G_PRIORITY_DEFAULT, main_cancel,
main_thread_wrote, in);
}
else
{
g_input_stream_skip_async (in, main_len - main_offset,
G_PRIORITY_DEFAULT, main_cancel,
main_thread_skipped, out);
}
}
static void
main_thread_read (GObject *source, GAsyncResult *res, gpointer user_data)
{
GInputStream *in = G_INPUT_STREAM (source);
GOutputStream *out = user_data;
GError *err = NULL;
gssize nread;
nread = g_input_stream_read_finish (in, res, &err);
if (g_cancellable_is_cancelled (main_cancel))
{
do_main_cancel (out);
g_clear_error (&err);
return;
}
g_assert_no_error (err);
main_offset += nread;
if (main_offset == sizeof (DATA))
{
main_len = main_offset;
main_offset = 0;
/* Now skip the same amount */
g_input_stream_skip_async (in, main_len,
G_PRIORITY_DEFAULT, main_cancel,
main_thread_skipped, out);
}
else
{
g_input_stream_read_async (in, main_buf, sizeof (main_buf),
G_PRIORITY_DEFAULT, main_cancel,
main_thread_read, out);
}
}
static void
main_thread_wrote (GObject *source, GAsyncResult *res, gpointer user_data)
{
GOutputStream *out = G_OUTPUT_STREAM (source);
GInputStream *in = user_data;
GError *err = NULL;
gssize nwrote;
nwrote = g_output_stream_write_finish (out, res, &err);
if (g_cancellable_is_cancelled (main_cancel))
{
do_main_cancel (out);
g_clear_error (&err);
return;
}
g_assert_no_error (err);
g_assert_cmpint (nwrote, <=, main_len - main_offset);
main_offset += nwrote;
if (main_offset == main_len)
{
main_offset = 0;
g_input_stream_read_async (in, main_buf, sizeof (main_buf),
G_PRIORITY_DEFAULT, main_cancel,
main_thread_read, out);
}
else
{
g_output_stream_write_async (out, main_buf + main_offset,
main_len - main_offset,
G_PRIORITY_DEFAULT, main_cancel,
main_thread_wrote, in);
}
}
static gboolean
timeout (gpointer cancellable)
{
g_cancellable_cancel (cancellable);
return FALSE;
}
static void
test_pipe_io (gconstpointer nonblocking)
{
GThread *writer, *reader;
GInputStream *in;
GOutputStream *out;
/* Split off two (additional) threads, a reader and a writer. From
* the writer thread, write data synchronously in small chunks,
* which gets alternately read and skipped asynchronously by the
* main thread and then (if not skipped) written asynchronously to
* the reader thread, which reads it synchronously. Eventually a
* timeout in the main thread will cause it to cancel the writer
* thread, which will in turn cancel the read op in the main thread,
* which will then close the pipe to the reader thread, causing the
* read op to fail.
*/
g_assert (pipe (writer_pipe) == 0 && pipe (reader_pipe) == 0);
if (nonblocking)
{
GError *error = NULL;
g_unix_set_fd_nonblocking (writer_pipe[0], TRUE, &error);
g_assert_no_error (error);
g_unix_set_fd_nonblocking (writer_pipe[1], TRUE, &error);
g_assert_no_error (error);
g_unix_set_fd_nonblocking (reader_pipe[0], TRUE, &error);
g_assert_no_error (error);
g_unix_set_fd_nonblocking (reader_pipe[1], TRUE, &error);
g_assert_no_error (error);
}
writer_cancel = g_cancellable_new ();
reader_cancel = g_cancellable_new ();
main_cancel = g_cancellable_new ();
writer = g_thread_new ("writer", writer_thread, NULL);
reader = g_thread_new ("reader", reader_thread, NULL);
in = g_unix_input_stream_new (writer_pipe[0], TRUE);
out = g_unix_output_stream_new (reader_pipe[1], TRUE);
g_input_stream_read_async (in, main_buf, sizeof (main_buf),
G_PRIORITY_DEFAULT, main_cancel,
main_thread_read, out);
g_timeout_add (500, timeout, writer_cancel);
loop = g_main_loop_new (NULL, TRUE);
g_main_loop_run (loop);
g_main_loop_unref (loop);
g_thread_join (reader);
g_thread_join (writer);
g_object_unref (main_cancel);
g_object_unref (reader_cancel);
g_object_unref (writer_cancel);
g_object_unref (in);
g_object_unref (out);
}
static void
test_basic (void)
{
GUnixInputStream *is;
GUnixOutputStream *os;
gint fd;
gboolean close_fd;
is = G_UNIX_INPUT_STREAM (g_unix_input_stream_new (0, TRUE));
g_object_get (is,
"fd", &fd,
"close-fd", &close_fd,
NULL);
g_assert_cmpint (fd, ==, 0);
g_assert (close_fd);
g_unix_input_stream_set_close_fd (is, FALSE);
g_assert (!g_unix_input_stream_get_close_fd (is));
g_assert_cmpint (g_unix_input_stream_get_fd (is), ==, 0);
g_assert (!g_input_stream_has_pending (G_INPUT_STREAM (is)));
g_object_unref (is);
os = G_UNIX_OUTPUT_STREAM (g_unix_output_stream_new (1, TRUE));
g_object_get (os,
"fd", &fd,
"close-fd", &close_fd,
NULL);
g_assert_cmpint (fd, ==, 1);
g_assert (close_fd);
g_unix_output_stream_set_close_fd (os, FALSE);
g_assert (!g_unix_output_stream_get_close_fd (os));
g_assert_cmpint (g_unix_output_stream_get_fd (os), ==, 1);
g_assert (!g_output_stream_has_pending (G_OUTPUT_STREAM (os)));
g_object_unref (os);
}
typedef struct {
GInputStream *is;
GOutputStream *os;
const guint8 *write_data;
guint8 *read_data;
} TestReadWriteData;
static gpointer
test_read_write_write_thread (gpointer user_data)
{
TestReadWriteData *data = user_data;
gsize bytes_written;
GError *error = NULL;
gboolean res;
res = g_output_stream_write_all (data->os, data->write_data, 1024, &bytes_written, NULL, &error);
g_assert_true (res);
g_assert_no_error (error);
g_assert_cmpuint (bytes_written, ==, 1024);
return NULL;
}
static gpointer
test_read_write_read_thread (gpointer user_data)
{
TestReadWriteData *data = user_data;
gsize bytes_read;
GError *error = NULL;
gboolean res;
res = g_input_stream_read_all (data->is, data->read_data, 1024, &bytes_read, NULL, &error);
g_assert_true (res);
g_assert_no_error (error);
g_assert_cmpuint (bytes_read, ==, 1024);
return NULL;
}
static gpointer
test_read_write_writev_thread (gpointer user_data)
{
TestReadWriteData *data = user_data;
gsize bytes_written;
GError *error = NULL;
gboolean res;
GOutputVector vectors[3];
vectors[0].buffer = data->write_data;
vectors[0].size = 256;
vectors[1].buffer = data->write_data + 256;
vectors[1].size = 256;
vectors[2].buffer = data->write_data + 512;
vectors[2].size = 512;
res = g_output_stream_writev_all (data->os, vectors, G_N_ELEMENTS (vectors), &bytes_written, NULL, &error);
g_assert_true (res);
g_assert_no_error (error);
g_assert_cmpuint (bytes_written, ==, 1024);
return NULL;
}
/* test if normal writing/reading from a pipe works */
static void
test_read_write (gconstpointer user_data)
{
gboolean writev = GPOINTER_TO_INT (user_data);
GUnixInputStream *is;
GUnixOutputStream *os;
gint fd[2];
guint8 data_write[1024], data_read[1024];
guint i;
GThread *write_thread, *read_thread;
TestReadWriteData data;
for (i = 0; i < sizeof (data_write); i++)
data_write[i] = i;
g_assert_cmpint (pipe (fd), ==, 0);
is = G_UNIX_INPUT_STREAM (g_unix_input_stream_new (fd[0], TRUE));
os = G_UNIX_OUTPUT_STREAM (g_unix_output_stream_new (fd[1], TRUE));
data.is = G_INPUT_STREAM (is);
data.os = G_OUTPUT_STREAM (os);
data.read_data = data_read;
data.write_data = data_write;
if (writev)
write_thread = g_thread_new ("writer", test_read_write_writev_thread, &data);
else
write_thread = g_thread_new ("writer", test_read_write_write_thread, &data);
read_thread = g_thread_new ("reader", test_read_write_read_thread, &data);
g_thread_join (write_thread);
g_thread_join (read_thread);
g_assert_cmpmem (data_write, sizeof data_write, data_read, sizeof data_read);
g_object_unref (os);
g_object_unref (is);
}
/* test if g_pollable_output_stream_write_nonblocking() and
* g_pollable_output_stream_read_nonblocking() correctly return WOULD_BLOCK
* and correctly reset their status afterwards again, and all data that is
* written can also be read again.
*/
static void
test_write_wouldblock (void)
{
#ifndef F_GETPIPE_SZ
g_test_skip ("F_GETPIPE_SZ not defined");
#else /* if F_GETPIPE_SZ */
GUnixInputStream *is;
GUnixOutputStream *os;
gint fd[2];
GError *err = NULL;
guint8 data_write[1024], data_read[1024];
guint i;
gint pipe_capacity;
for (i = 0; i < sizeof (data_write); i++)
data_write[i] = i;
g_assert_cmpint (pipe (fd), ==, 0);
g_assert_cmpint (fcntl (fd[0], F_SETPIPE_SZ, 4096, NULL), !=, 0);
pipe_capacity = fcntl (fd[0], F_GETPIPE_SZ, &pipe_capacity, NULL);
g_assert_cmpint (pipe_capacity, >=, 4096);
g_assert_cmpint (pipe_capacity % 1024, >=, 0);
is = G_UNIX_INPUT_STREAM (g_unix_input_stream_new (fd[0], TRUE));
os = G_UNIX_OUTPUT_STREAM (g_unix_output_stream_new (fd[1], TRUE));
/* Run the whole thing three times to make sure that the streams
* reset the writability/readability state again */
for (i = 0; i < 3; i++) {
gssize written = 0, written_complete = 0;
gssize read = 0, read_complete = 0;
do
{
written_complete += written;
written = g_pollable_output_stream_write_nonblocking (G_POLLABLE_OUTPUT_STREAM (os),
data_write,
sizeof (data_write),
NULL,
&err);
}
while (written > 0);
g_assert_cmpuint (written_complete, >, 0);
g_assert_nonnull (err);
g_assert_error (err, G_IO_ERROR, G_IO_ERROR_WOULD_BLOCK);
g_clear_error (&err);
do
{
read_complete += read;
read = g_pollable_input_stream_read_nonblocking (G_POLLABLE_INPUT_STREAM (is),
data_read,
sizeof (data_read),
NULL,
&err);
if (read > 0)
g_assert_cmpmem (data_read, read, data_write, sizeof (data_write));
}
while (read > 0);
g_assert_cmpuint (read_complete, ==, written_complete);
g_assert_nonnull (err);
g_assert_error (err, G_IO_ERROR, G_IO_ERROR_WOULD_BLOCK);
g_clear_error (&err);
}
g_object_unref (os);
g_object_unref (is);
#endif /* if F_GETPIPE_SZ */
}
/* test if g_pollable_output_stream_writev_nonblocking() and
* g_pollable_output_stream_read_nonblocking() correctly return WOULD_BLOCK
* and correctly reset their status afterwards again, and all data that is
* written can also be read again.
*/
static void
test_writev_wouldblock (void)
{
#ifndef F_GETPIPE_SZ
g_test_skip ("F_GETPIPE_SZ not defined");
#else /* if F_GETPIPE_SZ */
GUnixInputStream *is;
GUnixOutputStream *os;
gint fd[2];
GError *err = NULL;
guint8 data_write[1024], data_read[1024];
guint i;
GOutputVector vectors[4];
GPollableReturn res;
gint pipe_capacity;
for (i = 0; i < sizeof (data_write); i++)
data_write[i] = i;
g_assert_cmpint (pipe (fd), ==, 0);
g_assert_cmpint (fcntl (fd[0], F_SETPIPE_SZ, 4096, NULL), !=, 0);
pipe_capacity = fcntl (fd[0], F_GETPIPE_SZ, &pipe_capacity, NULL);
g_assert_cmpint (pipe_capacity, >=, 4096);
g_assert_cmpint (pipe_capacity % 1024, >=, 0);
is = G_UNIX_INPUT_STREAM (g_unix_input_stream_new (fd[0], TRUE));
os = G_UNIX_OUTPUT_STREAM (g_unix_output_stream_new (fd[1], TRUE));
/* Run the whole thing three times to make sure that the streams
* reset the writability/readability state again */
for (i = 0; i < 3; i++) {
gsize written = 0, written_complete = 0;
gssize read = 0, read_complete = 0;
do
{
written_complete += written;
vectors[0].buffer = data_write;
vectors[0].size = 256;
vectors[1].buffer = data_write + 256;
vectors[1].size = 256;
vectors[2].buffer = data_write + 512;
vectors[2].size = 256;
vectors[3].buffer = data_write + 768;
vectors[3].size = 256;
res = g_pollable_output_stream_writev_nonblocking (G_POLLABLE_OUTPUT_STREAM (os),
vectors,
G_N_ELEMENTS (vectors),
&written,
NULL,
&err);
}
while (res == G_POLLABLE_RETURN_OK);
g_assert_cmpuint (written_complete, >, 0);
g_assert_null (err);
g_assert_cmpint (res, ==, G_POLLABLE_RETURN_WOULD_BLOCK);
/* writev() on UNIX streams either succeeds fully or not at all */
g_assert_cmpuint (written, ==, 0);
do
{
read_complete += read;
read = g_pollable_input_stream_read_nonblocking (G_POLLABLE_INPUT_STREAM (is),
data_read,
sizeof (data_read),
NULL,
&err);
if (read > 0)
g_assert_cmpmem (data_read, read, data_write, sizeof (data_write));
}
while (read > 0);
g_assert_cmpuint (read_complete, ==, written_complete);
g_assert_nonnull (err);
g_assert_error (err, G_IO_ERROR, G_IO_ERROR_WOULD_BLOCK);
g_clear_error (&err);
}
g_object_unref (os);
g_object_unref (is);
#endif /* if F_GETPIPE_SZ */
}
#ifdef F_GETPIPE_SZ
static void
write_async_wouldblock_cb (GUnixOutputStream *os,
GAsyncResult *result,
gpointer user_data)
{
gsize *bytes_written = user_data;
GError *err = NULL;
g_output_stream_write_all_finish (G_OUTPUT_STREAM (os), result, bytes_written, &err);
g_assert_no_error (err);
}
static void
read_async_wouldblock_cb (GUnixInputStream *is,
GAsyncResult *result,
gpointer user_data)
{
gsize *bytes_read = user_data;
GError *err = NULL;
g_input_stream_read_all_finish (G_INPUT_STREAM (is), result, bytes_read, &err);
g_assert_no_error (err);
}
#endif /* if F_GETPIPE_SZ */
/* test if the async implementation of write_all() and read_all() in G*Stream
* around the GPollable*Stream API is working correctly.
*/
static void
test_write_async_wouldblock (void)
{
#ifndef F_GETPIPE_SZ
g_test_skip ("F_GETPIPE_SZ not defined");
#else /* if F_GETPIPE_SZ */
GUnixInputStream *is;
GUnixOutputStream *os;
gint fd[2];
guint8 *data, *data_read;
guint i;
gint pipe_capacity;
gsize bytes_written = 0, bytes_read = 0;
g_assert_cmpint (pipe (fd), ==, 0);
/* FIXME: These should not be needed but otherwise
* g_unix_output_stream_write() will block because
* a) the fd is writable
* b) writing 4x capacity will block because writes are atomic
* c) the fd is blocking
*
* See https://gitlab.gnome.org/GNOME/glib/issues/1654
*/
g_unix_set_fd_nonblocking (fd[0], TRUE, NULL);
g_unix_set_fd_nonblocking (fd[1], TRUE, NULL);
g_assert_cmpint (fcntl (fd[0], F_SETPIPE_SZ, 4096, NULL), !=, 0);
pipe_capacity = fcntl (fd[0], F_GETPIPE_SZ, &pipe_capacity, NULL);
g_assert_cmpint (pipe_capacity, >=, 4096);
data = g_new (guint8, 4 * pipe_capacity);
for (i = 0; i < 4 * pipe_capacity; i++)
data[i] = i;
data_read = g_new (guint8, 4 * pipe_capacity);
is = G_UNIX_INPUT_STREAM (g_unix_input_stream_new (fd[0], TRUE));
os = G_UNIX_OUTPUT_STREAM (g_unix_output_stream_new (fd[1], TRUE));
g_output_stream_write_all_async (G_OUTPUT_STREAM (os),
data,
4 * pipe_capacity,
G_PRIORITY_DEFAULT,
NULL,
(GAsyncReadyCallback) write_async_wouldblock_cb,
&bytes_written);
g_input_stream_read_all_async (G_INPUT_STREAM (is),
data_read,
4 * pipe_capacity,
G_PRIORITY_DEFAULT,
NULL,
(GAsyncReadyCallback) read_async_wouldblock_cb,
&bytes_read);
while (bytes_written == 0 && bytes_read == 0)
g_main_context_iteration (NULL, TRUE);
g_assert_cmpuint (bytes_written, ==, 4 * pipe_capacity);
g_assert_cmpuint (bytes_read, ==, 4 * pipe_capacity);
g_assert_cmpmem (data_read, bytes_read, data, bytes_written);
g_free (data);
g_free (data_read);
g_object_unref (os);
g_object_unref (is);
#endif /* if F_GETPIPE_SZ */
}
#ifdef F_GETPIPE_SZ
static void
writev_async_wouldblock_cb (GUnixOutputStream *os,
GAsyncResult *result,
gpointer user_data)
{
gsize *bytes_written = user_data;
GError *err = NULL;
g_output_stream_writev_all_finish (G_OUTPUT_STREAM (os), result, bytes_written, &err);
g_assert_no_error (err);
}
#endif /* if F_GETPIPE_SZ */
/* test if the async implementation of writev_all() and read_all() in G*Stream
* around the GPollable*Stream API is working correctly.
*/
static void
test_writev_async_wouldblock (void)
{
#ifndef F_GETPIPE_SZ
g_test_skip ("F_GETPIPE_SZ not defined");
#else /* if F_GETPIPE_SZ */
GUnixInputStream *is;
GUnixOutputStream *os;
gint fd[2];
guint8 *data, *data_read;
guint i;
gint pipe_capacity;
gsize bytes_written = 0, bytes_read = 0;
GOutputVector vectors[4];
g_assert_cmpint (pipe (fd), ==, 0);
/* FIXME: These should not be needed but otherwise
* g_unix_output_stream_writev() will block because
* a) the fd is writable
* b) writing 4x capacity will block because writes are atomic
* c) the fd is blocking
*
* See https://gitlab.gnome.org/GNOME/glib/issues/1654
*/
g_unix_set_fd_nonblocking (fd[0], TRUE, NULL);
g_unix_set_fd_nonblocking (fd[1], TRUE, NULL);
g_assert_cmpint (fcntl (fd[0], F_SETPIPE_SZ, 4096, NULL), !=, 0);
pipe_capacity = fcntl (fd[0], F_GETPIPE_SZ, &pipe_capacity, NULL);
g_assert_cmpint (pipe_capacity, >=, 4096);
data = g_new (guint8, 4 * pipe_capacity);
for (i = 0; i < 4 * pipe_capacity; i++)
data[i] = i;
data_read = g_new (guint8, 4 * pipe_capacity);
vectors[0].buffer = data;
vectors[0].size = 1024;
vectors[1].buffer = data + 1024;
vectors[1].size = 1024;
vectors[2].buffer = data + 2048;
vectors[2].size = 1024;
vectors[3].buffer = data + 3072;
vectors[3].size = 4 * pipe_capacity - 3072;
is = G_UNIX_INPUT_STREAM (g_unix_input_stream_new (fd[0], TRUE));
os = G_UNIX_OUTPUT_STREAM (g_unix_output_stream_new (fd[1], TRUE));
g_output_stream_writev_all_async (G_OUTPUT_STREAM (os),
vectors,
G_N_ELEMENTS (vectors),
G_PRIORITY_DEFAULT,
NULL,
(GAsyncReadyCallback) writev_async_wouldblock_cb,
&bytes_written);
g_input_stream_read_all_async (G_INPUT_STREAM (is),
data_read,
4 * pipe_capacity,
G_PRIORITY_DEFAULT,
NULL,
(GAsyncReadyCallback) read_async_wouldblock_cb,
&bytes_read);
while (bytes_written == 0 && bytes_read == 0)
g_main_context_iteration (NULL, TRUE);
g_assert_cmpuint (bytes_written, ==, 4 * pipe_capacity);
g_assert_cmpuint (bytes_read, ==, 4 * pipe_capacity);
g_assert_cmpmem (data_read, bytes_read, data, bytes_written);
g_free (data);
g_free (data_read);
g_object_unref (os);
g_object_unref (is);
#endif /* F_GETPIPE_SZ */
}
int
main (int argc,
char *argv[])
{
g_test_init (&argc, &argv, NULL);
g_test_add_func ("/unix-streams/basic", test_basic);
g_test_add_data_func ("/unix-streams/pipe-io-test",
GINT_TO_POINTER (FALSE),
test_pipe_io);
g_test_add_data_func ("/unix-streams/nonblocking-io-test",
GINT_TO_POINTER (TRUE),
test_pipe_io);
g_test_add_data_func ("/unix-streams/read_write",
GINT_TO_POINTER (FALSE),
test_read_write);
g_test_add_data_func ("/unix-streams/read_writev",
GINT_TO_POINTER (TRUE),
test_read_write);
g_test_add_func ("/unix-streams/write-wouldblock",
test_write_wouldblock);
g_test_add_func ("/unix-streams/writev-wouldblock",
test_writev_wouldblock);
g_test_add_func ("/unix-streams/write-async-wouldblock",
test_write_async_wouldblock);
g_test_add_func ("/unix-streams/writev-async-wouldblock",
test_writev_async_wouldblock);
return g_test_run();
}
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