glib/gio/tests/converter-stream.c
2009-11-29 15:14:10 +01:00

573 lines
14 KiB
C

/* GLib testing framework examples and tests
* Copyright (C) 2009 Red Hat, Inc.
* Authors: Alexander Larsson <alexl@redhat.com>
*
* 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 <glib/glib.h>
#include <gio/gio.h>
#include <stdlib.h>
#include <string.h>
#define G_TYPE_EXPANDER_CONVERTER (g_expander_converter_get_type ())
#define G_EXPANDER_CONVERTER(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_EXPANDER_CONVERTER, GExpanderConverter))
#define G_EXPANDER_CONVERTER_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), G_TYPE_EXPANDER_CONVERTER, GExpanderConverterClass))
#define G_IS_EXPANDER_CONVERTER(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_TYPE_EXPANDER_CONVERTER))
#define G_IS_EXPANDER_CONVERTER_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), G_TYPE_EXPANDER_CONVERTER))
#define G_EXPANDER_CONVERTER_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), G_TYPE_EXPANDER_CONVERTER, GExpanderConverterClass))
typedef struct _GExpanderConverter GExpanderConverter;
typedef struct _GExpanderConverterClass GExpanderConverterClass;
struct _GExpanderConverterClass
{
GObjectClass parent_class;
};
GType g_expander_converter_get_type (void) G_GNUC_CONST;
GConverter *g_expander_converter_new (void);
static void g_expander_converter_iface_init (GConverterIface *iface);
struct _GExpanderConverter
{
GObject parent_instance;
};
G_DEFINE_TYPE_WITH_CODE (GExpanderConverter, g_expander_converter, G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (G_TYPE_CONVERTER,
g_expander_converter_iface_init))
static void
g_expander_converter_class_init (GExpanderConverterClass *klass)
{
}
static void
g_expander_converter_init (GExpanderConverter *local)
{
}
GConverter *
g_expander_converter_new (void)
{
GConverter *conv;
conv = g_object_new (G_TYPE_EXPANDER_CONVERTER, NULL);
return conv;
}
static void
g_expander_converter_reset (GConverter *converter)
{
}
static GConverterResult
g_expander_converter_convert (GConverter *converter,
const void *inbuf,
gsize inbuf_size,
void *outbuf,
gsize outbuf_size,
GConverterFlags flags,
gsize *bytes_read,
gsize *bytes_written,
GError **error)
{
GExpanderConverter *conv;
const guint8 *in, *in_end;
guint8 v, *out;
int i;
gsize block_size;
conv = G_EXPANDER_CONVERTER (converter);
in = inbuf;
out = outbuf;
in_end = in + inbuf_size;
while (in < in_end)
{
v = *in;
if (v == 0)
block_size = 10;
else
block_size = v * 1000;
if (outbuf_size < block_size)
{
if (*bytes_read > 0)
return G_CONVERTER_CONVERTED;
g_set_error_literal (error, G_IO_ERROR,
G_IO_ERROR_NO_SPACE,
"No space in dest");
return G_CONVERTER_ERROR;
}
in++;
*bytes_read += 1;
*bytes_written += block_size;
outbuf_size -= block_size;
for (i = 0; i < block_size; i++)
*out++ = v;
}
if (in == in_end && (flags & G_CONVERTER_INPUT_AT_END))
return G_CONVERTER_FINISHED;
return G_CONVERTER_CONVERTED;
}
static void
g_expander_converter_iface_init (GConverterIface *iface)
{
iface->convert = g_expander_converter_convert;
iface->reset = g_expander_converter_reset;
}
#define G_TYPE_COMPRESSOR_CONVERTER (g_compressor_converter_get_type ())
#define G_COMPRESSOR_CONVERTER(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_COMPRESSOR_CONVERTER, GCompressorConverter))
#define G_COMPRESSOR_CONVERTER_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), G_TYPE_COMPRESSOR_CONVERTER, GCompressorConverterClass))
#define G_IS_COMPRESSOR_CONVERTER(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_TYPE_COMPRESSOR_CONVERTER))
#define G_IS_COMPRESSOR_CONVERTER_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), G_TYPE_COMPRESSOR_CONVERTER))
#define G_COMPRESSOR_CONVERTER_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), G_TYPE_COMPRESSOR_CONVERTER, GCompressorConverterClass))
typedef struct _GCompressorConverter GCompressorConverter;
typedef struct _GCompressorConverterClass GCompressorConverterClass;
struct _GCompressorConverterClass
{
GObjectClass parent_class;
};
GType g_compressor_converter_get_type (void) G_GNUC_CONST;
GConverter *g_compressor_converter_new (void);
static void g_compressor_converter_iface_init (GConverterIface *iface);
struct _GCompressorConverter
{
GObject parent_instance;
};
G_DEFINE_TYPE_WITH_CODE (GCompressorConverter, g_compressor_converter, G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (G_TYPE_CONVERTER,
g_compressor_converter_iface_init))
static void
g_compressor_converter_class_init (GCompressorConverterClass *klass)
{
}
static void
g_compressor_converter_init (GCompressorConverter *local)
{
}
GConverter *
g_compressor_converter_new (void)
{
GConverter *conv;
conv = g_object_new (G_TYPE_COMPRESSOR_CONVERTER, NULL);
return conv;
}
static void
g_compressor_converter_reset (GConverter *converter)
{
}
static GConverterResult
g_compressor_converter_convert (GConverter *converter,
const void *inbuf,
gsize inbuf_size,
void *outbuf,
gsize outbuf_size,
GConverterFlags flags,
gsize *bytes_read,
gsize *bytes_written,
GError **error)
{
GCompressorConverter *conv;
const guint8 *in, *in_end;
guint8 v, *out;
int i;
gsize block_size;
conv = G_COMPRESSOR_CONVERTER (converter);
in = inbuf;
out = outbuf;
in_end = in + inbuf_size;
while (in < in_end)
{
v = *in;
if (v == 0)
{
block_size = 0;
while (in+block_size < in_end && *(in+block_size) == 0)
block_size ++;
}
else
block_size = v * 1000;
/* Not enough data */
if (in_end - in < block_size)
{
if (*bytes_read > 0)
break;
g_set_error_literal (error, G_IO_ERROR,
G_IO_ERROR_PARTIAL_INPUT,
"Need more data");
return G_CONVERTER_ERROR;
}
for (i = 0; i < block_size; i++)
{
if (*(in + i) != v)
{
if (*bytes_read > 0)
break;
g_set_error_literal (error, G_IO_ERROR,
G_IO_ERROR_INVALID_DATA,
"invalid data");
return G_CONVERTER_ERROR;
}
}
if (v == 0 && in_end - in == block_size && (flags & G_CONVERTER_INPUT_AT_END) == 0)
{
if (*bytes_read > 0)
break;
g_set_error_literal (error, G_IO_ERROR,
G_IO_ERROR_PARTIAL_INPUT,
"Need more data");
return G_CONVERTER_ERROR;
}
in += block_size;
*out++ = v;
*bytes_read += block_size;
*bytes_written += 1;
}
if (in == in_end && (flags & G_CONVERTER_INPUT_AT_END))
return G_CONVERTER_FINISHED;
return G_CONVERTER_CONVERTED;
}
static void
g_compressor_converter_iface_init (GConverterIface *iface)
{
iface->convert = g_compressor_converter_convert;
iface->reset = g_compressor_converter_reset;
}
guint8 unexpanded_data[] = { 0,1,3,4,5,6,7,3,12,0,0};
static void
test_expander (void)
{
guint8 *converted1, *converted2, *ptr;
gsize n_read, n_written;
gsize total_read;
gssize res;
GConverterResult cres;
GInputStream *mem, *cstream;
GOutputStream *mem_out, *cstream_out;
GConverter *expander;
GError *error;
int i;
expander = g_expander_converter_new ();
converted1 = g_malloc (100*1000); /* Large enough */
converted2 = g_malloc (100*1000); /* Large enough */
cres = g_converter_convert (expander,
unexpanded_data, sizeof(unexpanded_data),
converted1, 100*1000,
G_CONVERTER_INPUT_AT_END,
&n_read, &n_written, NULL);
g_assert (cres == G_CONVERTER_FINISHED);
g_assert (n_read == 11);
g_assert (n_written == 41030);
g_converter_reset (expander);
mem = g_memory_input_stream_new_from_data (unexpanded_data,
sizeof (unexpanded_data),
NULL);
cstream = g_converter_input_stream_new (mem, expander);
g_object_unref (mem);
total_read = 0;
ptr = converted2;
while (TRUE)
{
error = NULL;
res = g_input_stream_read (cstream,
ptr, 1,
NULL, &error);
g_assert (res != -1);
if (res == 0)
break;
ptr += res;
total_read += res;
}
g_assert (total_read == n_written);
g_assert (memcmp (converted1, converted2, n_written) == 0);
g_converter_reset (expander);
mem_out = g_memory_output_stream_new (NULL, 0, g_realloc, g_free);
cstream_out = g_converter_output_stream_new (mem_out, expander);
g_object_unref (mem_out);
for (i = 0; i < sizeof(unexpanded_data); i++)
{
error = NULL;
res = g_output_stream_write (cstream_out,
unexpanded_data + i, 1,
NULL, &error);
g_assert (res != -1);
if (res == 0)
{
g_assert (i == sizeof(unexpanded_data) -1);
break;
}
g_assert (res == 1);
}
g_output_stream_close (cstream_out, NULL, NULL);
g_assert (g_memory_output_stream_get_data_size (G_MEMORY_OUTPUT_STREAM (mem_out)) == n_written);
g_assert (memcmp (g_memory_output_stream_get_data (G_MEMORY_OUTPUT_STREAM (mem_out)),
converted1,
n_written) == 0);
g_free (converted1);
g_free (converted2);
g_object_unref (cstream);
g_object_unref (cstream_out);
g_object_unref (expander);
}
static void
test_compressor (void)
{
guint8 *converted, *expanded, *ptr;
gsize n_read, expanded_size;
gsize total_read;
gssize res;
GConverterResult cres;
GInputStream *mem, *cstream;
GOutputStream *mem_out, *cstream_out;
GConverter *expander, *compressor;
GError *error;
int i;
expander = g_expander_converter_new ();
expanded = g_malloc (100*1000); /* Large enough */
cres = g_converter_convert (expander,
unexpanded_data, sizeof(unexpanded_data),
expanded, 100*1000,
G_CONVERTER_INPUT_AT_END,
&n_read, &expanded_size, NULL);
g_assert (cres == G_CONVERTER_FINISHED);
g_assert (n_read == 11);
g_assert (expanded_size == 41030);
compressor = g_compressor_converter_new ();
converted = g_malloc (100*1000); /* Large enough */
mem = g_memory_input_stream_new_from_data (expanded,
expanded_size,
NULL);
cstream = g_converter_input_stream_new (mem, compressor);
g_object_unref (mem);
total_read = 0;
ptr = converted;
while (TRUE)
{
error = NULL;
res = g_input_stream_read (cstream,
ptr, 1,
NULL, &error);
g_assert (res != -1);
if (res == 0)
break;
ptr += res;
total_read += res;
}
g_assert (total_read == n_read - 1); /* Last 2 zeros are combined */
g_assert (memcmp (converted, unexpanded_data, total_read) == 0);
g_object_unref (cstream);
g_converter_reset (compressor);
mem_out = g_memory_output_stream_new (NULL, 0, g_realloc, g_free);
cstream_out = g_converter_output_stream_new (mem_out, compressor);
g_object_unref (mem_out);
for (i = 0; i < expanded_size; i++)
{
error = NULL;
res = g_output_stream_write (cstream_out,
expanded + i, 1,
NULL, &error);
g_assert (res != -1);
if (res == 0)
{
g_assert (i == expanded_size -1);
break;
}
g_assert (res == 1);
}
g_output_stream_close (cstream_out, NULL, NULL);
g_assert (g_memory_output_stream_get_data_size (G_MEMORY_OUTPUT_STREAM (mem_out)) == n_read - 1); /* Last 2 zeros are combined */
g_assert (memcmp (g_memory_output_stream_get_data (G_MEMORY_OUTPUT_STREAM (mem_out)),
unexpanded_data,
g_memory_output_stream_get_data_size (G_MEMORY_OUTPUT_STREAM (mem_out))) == 0);
g_object_unref (cstream_out);
g_converter_reset (compressor);
memset (expanded, 5, 5*1000*2);
mem = g_memory_input_stream_new_from_data (expanded,
5*1000,
NULL);
cstream = g_converter_input_stream_new (mem, compressor);
g_object_unref (mem);
total_read = 0;
ptr = converted;
while (TRUE)
{
error = NULL;
res = g_input_stream_read (cstream,
ptr, 1,
NULL, &error);
g_assert (res != -1);
if (res == 0)
break;
ptr += res;
total_read += res;
}
g_assert (total_read == 1);
g_assert (*converted == 5);
mem = g_memory_input_stream_new_from_data (expanded,
5*1000 * 2,
NULL);
cstream = g_converter_input_stream_new (mem, compressor);
g_object_unref (mem);
total_read = 0;
ptr = converted;
while (TRUE)
{
error = NULL;
res = g_input_stream_read (cstream,
ptr, 1,
NULL, &error);
g_assert (res != -1);
if (res == 0)
break;
ptr += res;
total_read += res;
}
g_assert (total_read == 2);
g_assert (converted[0] == 5);
g_assert (converted[1] == 5);
g_object_unref (cstream);
g_converter_reset (compressor);
mem = g_memory_input_stream_new_from_data (expanded,
5*1000 * 2 - 1,
NULL);
cstream = g_converter_input_stream_new (mem, compressor);
g_object_unref (mem);
total_read = 0;
ptr = converted;
while (TRUE)
{
error = NULL;
res = g_input_stream_read (cstream,
ptr, 1,
NULL, &error);
if (res == -1)
{
g_assert_error (error, G_IO_ERROR, G_IO_ERROR_PARTIAL_INPUT);
break;
}
g_assert (res != 0);
ptr += res;
total_read += res;
}
g_assert (total_read == 1);
g_assert (converted[0] == 5);
g_object_unref (cstream);
g_free (expanded);
g_free (converted);
g_object_unref (expander);
g_object_unref (compressor);
}
int
main (int argc,
char *argv[])
{
g_type_init ();
g_test_init (&argc, &argv, NULL);
g_test_add_func ("/converter-input-stream/expander", test_expander);
g_test_add_func ("/converter-input-stream/compressor", test_compressor);
return g_test_run();
}