#include "glibintl.h"
+typedef struct _GMemoryBuffer GMemoryBuffer;
+struct _GMemoryBuffer
+{
+ gsize len;
+ gsize valid_len;
+ gsize pos;
+ gchar *data;
+ GDataStreamByteOrder byte_order;
+};
+
+static gssize
+g_memory_buffer_read (GMemoryBuffer *mbuf,
+ void **buffer,
+ gsize count,
+ GError **error)
+{
+ gssize res;
+
+ if (((gssize) count) < 0)
+ {
+ g_set_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
+ _("Too large count value passed to %s"), G_STRFUNC);
+ return -1;
+ }
+
+ res = MIN (count, mbuf->valid_len - mbuf->pos);
+ *buffer = mbuf->data + mbuf->pos;
+ mbuf->pos += res;
+ return res;
+}
+
+static guchar
+g_memory_buffer_read_byte (GMemoryBuffer *mbuf,
+ GError **error)
+{
+ if (mbuf->pos >= mbuf->valid_len)
+ return 0;
+ return mbuf->data [mbuf->pos++];
+}
+
+static gint16
+g_memory_buffer_read_int16 (GMemoryBuffer *mbuf,
+ GError **error)
+{
+ gint16 v;
+
+ if (mbuf->pos > mbuf->valid_len - 2)
+ {
+ mbuf->pos = mbuf->valid_len;
+ return 0;
+ }
+
+ memcpy (&v, mbuf->data + mbuf->pos, 2);
+ mbuf->pos += 2;
+ switch (mbuf->byte_order)
+ {
+ case G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN:
+ v = GINT16_FROM_BE (v);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN:
+ v = GINT16_FROM_LE (v);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN:
+ default:
+ break;
+ }
+ return v;
+}
+
+static guint16
+g_memory_buffer_read_uint16 (GMemoryBuffer *mbuf,
+ GError **error)
+{
+ guint16 v;
+
+ if (mbuf->pos > mbuf->valid_len - 2)
+ {
+ mbuf->pos = mbuf->valid_len;
+ return 0;
+ }
+
+ memcpy (&v, mbuf->data + mbuf->pos, 2);
+ mbuf->pos += 2;
+ switch (mbuf->byte_order)
+ {
+ case G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN:
+ v = GINT16_FROM_BE (v);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN:
+ v = GINT16_FROM_LE (v);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN:
+ default:
+ break;
+ }
+ return v;
+}
+
+static gint32
+g_memory_buffer_read_int32 (GMemoryBuffer *mbuf,
+ GError **error)
+{
+ gint32 v;
+
+ if (mbuf->pos > mbuf->valid_len - 4)
+ {
+ mbuf->pos = mbuf->valid_len;
+ return 0;
+ }
+
+ memcpy (&v, mbuf->data + mbuf->pos, 4);
+ mbuf->pos += 4;
+ switch (mbuf->byte_order)
+ {
+ case G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN:
+ v = GINT32_FROM_BE (v);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN:
+ v = GINT32_FROM_LE (v);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN:
+ default:
+ break;
+ }
+ return v;
+}
+
+static guint32
+g_memory_buffer_read_uint32 (GMemoryBuffer *mbuf,
+ GError **error)
+{
+ guint32 v;
+
+ if (mbuf->pos > mbuf->valid_len - 4)
+ {
+ mbuf->pos = mbuf->valid_len;
+ return 0;
+ }
+
+ memcpy (&v, mbuf->data + mbuf->pos, 4);
+ mbuf->pos += 4;
+ switch (mbuf->byte_order)
+ {
+ case G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN:
+ v = GUINT32_FROM_BE (v);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN:
+ v = GUINT32_FROM_LE (v);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN:
+ default:
+ break;
+ }
+ return v;
+}
+
+static gint64
+g_memory_buffer_read_int64 (GMemoryBuffer *mbuf,
+ GError **error)
+{
+ gint64 v;
+
+ if (mbuf->pos > mbuf->valid_len - 8)
+ {
+ mbuf->pos = mbuf->valid_len;
+ return 0;
+ }
+
+ memcpy (&v, mbuf->data + mbuf->pos, 8);
+ mbuf->pos += 8;
+ switch (mbuf->byte_order)
+ {
+ case G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN:
+ v = GINT64_FROM_BE (v);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN:
+ v = GINT64_FROM_LE (v);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN:
+ default:
+ break;
+ }
+ return v;
+}
+
+static guint64
+g_memory_buffer_read_uint64 (GMemoryBuffer *mbuf,
+ GError **error)
+{
+ guint64 v;
+
+ if (mbuf->pos > mbuf->valid_len - 8)
+ {
+ mbuf->pos = mbuf->valid_len;
+ return 0;
+ }
+
+ memcpy (&v, mbuf->data + mbuf->pos, 8);
+ mbuf->pos += 8;
+ switch (mbuf->byte_order)
+ {
+ case G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN:
+ v = GUINT64_FROM_BE (v);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN:
+ v = GUINT64_FROM_LE (v);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN:
+ default:
+ break;
+ }
+ return v;
+}
+
+#define MIN_ARRAY_SIZE 128
+
+static gint
+g_nearest_pow (gint num)
+{
+ gint n = 1;
+
+ while (n < num)
+ n <<= 1;
+
+ return n;
+}
+
+static void
+array_resize (GMemoryBuffer *mbuf,
+ gsize size)
+{
+ gpointer data;
+ gsize len;
+
+ if (mbuf->len == size)
+ return;
+
+ len = mbuf->len;
+ data = g_realloc (mbuf->data, size);
+
+ if (size > len)
+ memset ((guint8 *)data + len, 0, size - len);
+
+ mbuf->data = data;
+ mbuf->len = size;
+
+ if (mbuf->len < mbuf->valid_len)
+ mbuf->valid_len = mbuf->len;
+}
+
+static gboolean
+g_memory_buffer_write (GMemoryBuffer *mbuf,
+ const void *buffer,
+ gsize count)
+{
+ guint8 *dest;
+ gsize new_size;
+
+ if (count == 0)
+ return TRUE;
+
+ /* Check for address space overflow, but only if the buffer is resizable.
+ Otherwise we just do a short write and don't worry. */
+ if (mbuf->pos + count < mbuf->pos)
+ return FALSE;
+
+ if (mbuf->pos + count > mbuf->len)
+ {
+ /* At least enought to fit the write, rounded up
+ for greater than linear growth.
+ TODO: This wastes a lot of memory at large buffer sizes.
+ Figure out a more rational allocation strategy. */
+ new_size = g_nearest_pow (mbuf->pos + count);
+ /* Check for overflow again. We have only checked if
+ pos + count > G_MAXSIZE, but it only catches the case of writing
+ more than 4GiB total on a 32-bit system. There's still the problem
+ of g_nearest_pow overflowing above 0x7fffffff, so we're
+ effectively limited to 2GiB. */
+ if (new_size < mbuf->len)
+ return FALSE;
+
+ new_size = MAX (new_size, MIN_ARRAY_SIZE);
+ array_resize (mbuf, new_size);
+ }
+
+ dest = (guint8 *)mbuf->data + mbuf->pos;
+ memcpy (dest, buffer, count);
+ mbuf->pos += count;
+
+ if (mbuf->pos > mbuf->valid_len)
+ mbuf->valid_len = mbuf->pos;
+
+ return TRUE;
+}
+
+static gboolean
+g_memory_buffer_put_byte (GMemoryBuffer *mbuf,
+ guchar data)
+{
+ return g_memory_buffer_write (mbuf, &data, 1);
+}
+
+static gboolean
+g_memory_buffer_put_int16 (GMemoryBuffer *mbuf,
+ gint16 data)
+{
+ switch (mbuf->byte_order)
+ {
+ case G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN:
+ data = GINT16_TO_BE (data);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN:
+ data = GINT16_TO_LE (data);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN:
+ default:
+ break;
+ }
+
+ return g_memory_buffer_write (mbuf, &data, 2);
+}
+
+static gboolean
+g_memory_buffer_put_uint16 (GMemoryBuffer *mbuf,
+ guint16 data)
+{
+ switch (mbuf->byte_order)
+ {
+ case G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN:
+ data = GUINT16_TO_BE (data);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN:
+ data = GUINT16_TO_LE (data);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN:
+ default:
+ break;
+ }
+
+ return g_memory_buffer_write (mbuf, &data, 2);
+}
+
+static gboolean
+g_memory_buffer_put_int32 (GMemoryBuffer *mbuf,
+ gint32 data)
+{
+ switch (mbuf->byte_order)
+ {
+ case G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN:
+ data = GINT32_TO_BE (data);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN:
+ data = GINT32_TO_LE (data);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN:
+ default:
+ break;
+ }
+
+ return g_memory_buffer_write (mbuf, &data, 4);
+}
+
+static gboolean
+g_memory_buffer_put_uint32 (GMemoryBuffer *mbuf,
+ guint32 data)
+{
+ switch (mbuf->byte_order)
+ {
+ case G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN:
+ data = GUINT32_TO_BE (data);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN:
+ data = GUINT32_TO_LE (data);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN:
+ default:
+ break;
+ }
+
+ return g_memory_buffer_write (mbuf, &data, 4);
+}
+
+static gboolean
+g_memory_buffer_put_int64 (GMemoryBuffer *mbuf,
+ gint64 data)
+{
+ switch (mbuf->byte_order)
+ {
+ case G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN:
+ data = GINT64_TO_BE (data);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN:
+ data = GINT64_TO_LE (data);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN:
+ default:
+ break;
+ }
+
+ return g_memory_buffer_write (mbuf, &data, 8);
+}
+
+static gboolean
+g_memory_buffer_put_uint64 (GMemoryBuffer *mbuf,
+ guint64 data)
+{
+ switch (mbuf->byte_order)
+ {
+ case G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN:
+ data = GUINT64_TO_BE (data);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN:
+ data = GUINT64_TO_LE (data);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN:
+ default:
+ break;
+ }
+
+ return g_memory_buffer_write (mbuf, &data, 8);
+}
+
+static gboolean
+g_memory_buffer_put_string (GMemoryBuffer *mbuf,
+ const char *str)
+{
+ g_return_val_if_fail (str != NULL, FALSE);
+
+ return g_memory_buffer_write (mbuf, str, strlen (str));
+}
+
+
/**
* SECTION:gdbusmessage
* @short_description: D-Bus Message
/* ---------------------------------------------------------------------------------------------------- */
static gboolean
-ensure_input_padding (GMemoryInputStream *mis,
+ensure_input_padding (GMemoryBuffer *buf,
gsize padding_size,
GError **error)
{
gsize offset;
gsize wanted_offset;
- offset = g_seekable_tell (G_SEEKABLE (mis));
+ offset = buf->pos;
wanted_offset = ((offset + padding_size - 1) / padding_size) * padding_size;
-
- if (offset != wanted_offset)
- {
- return g_seekable_seek (G_SEEKABLE (mis), wanted_offset, G_SEEK_SET, NULL, error);
- }
- else
- {
- return TRUE;
- }
+ buf->pos = wanted_offset;
+ return TRUE;
}
static gchar *
-read_string (GMemoryInputStream *mis,
- GDataInputStream *dis,
+read_string (GMemoryBuffer *mbuf,
gsize len,
GError **error)
{
- GString *s;
- gchar buf[256];
- gsize remaining;
+ gchar *str;
guchar nul;
GError *local_error;
const gchar *end_valid;
+ gssize num_read;
+ gchar *ptr;
- s = g_string_new (NULL);
+ str = g_malloc (len + 1);
- remaining = len;
- while (remaining > 0)
+ num_read = g_memory_buffer_read (mbuf,
+ (void **)&ptr,
+ len,
+ error);
+ if (num_read < 0)
+ goto fail;
+ if (num_read < len)
{
- gsize to_read;
- gssize num_read;
-
- to_read = MIN (remaining, sizeof (buf));
- num_read = g_input_stream_read (G_INPUT_STREAM (mis),
- buf,
- to_read,
- NULL,
- error);
- if (num_read < 0)
- goto fail;
- if (num_read == 0)
- {
- /* G_GSIZE_FORMAT doesn't work with gettext, so we use %lu */
- g_set_error (error,
- G_IO_ERROR,
- G_IO_ERROR_INVALID_ARGUMENT,
- g_dngettext (GETTEXT_PACKAGE,
- "Wanted to read %lu byte but got EOF",
- "Wanted to read %lu bytes but got EOF",
- (gulong)to_read),
- (gulong)to_read);
- goto fail;
- }
-
- remaining -= num_read;
- g_string_append_len (s, buf, num_read);
+ /* G_GSIZE_FORMAT doesn't work with gettext, so we use %lu */
+ g_set_error (error,
+ G_IO_ERROR,
+ G_IO_ERROR_INVALID_ARGUMENT,
+ g_dngettext (GETTEXT_PACKAGE,
+ "Wanted to read %lu bytes but only got %lu",
+ "Wanted to read %lu byte but only got %lu",
+ (gulong)len),
+ (gulong)len,
+ (gulong)num_read);
+ goto fail;
}
+ memcpy (str, ptr, len);
local_error = NULL;
- nul = g_data_input_stream_read_byte (dis, NULL, &local_error);
+ nul = g_memory_buffer_read_byte (mbuf, &local_error);
if (local_error != NULL)
{
g_propagate_error (error, local_error);
goto fail;
}
- if (!g_utf8_validate (s->str, -1, &end_valid))
+ str[num_read] = '\0';
+ if (!g_utf8_validate (str, -1, &end_valid))
{
gint offset;
gchar *valid_str;
- offset = (gint) (end_valid - s->str);
- valid_str = g_strndup (s->str, offset);
+ offset = (gint) (end_valid - str);
+ valid_str = g_strndup (str, offset);
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
_("Expected valid UTF-8 string but found invalid bytes at byte offset %d (length of string is %d). "
"The valid UTF-8 string up until that point was `%s'"),
offset,
- (gint) s->len,
+ (gint) num_read,
valid_str);
g_free (valid_str);
goto fail;
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
_("Expected NUL byte after the string `%s' but found byte %d"),
- s->str, nul);
+ str, nul);
goto fail;
}
- return g_string_free (s, FALSE);
+ return str;
fail:
- g_string_free (s, TRUE);
+ g_free (str);
return NULL;
}
/* returns a non-floating GVariant! */
static GVariant *
-parse_value_from_blob (GMemoryInputStream *mis,
- GDataInputStream *dis,
+parse_value_from_blob (GMemoryBuffer *buf,
const GVariantType *type,
gboolean just_align,
guint indent,
indent, "",
just_align ? "Aligning" : "Reading",
s,
- (gint) g_seekable_tell (G_SEEKABLE (mis)));
+ (gint) g_seekable_tell (G_SEEKABLE (buf)));
g_free (s);
}
#endif /* DEBUG_SERIALIZER */
switch (type_string[0])
{
case 'b': /* G_VARIANT_TYPE_BOOLEAN */
- if (!ensure_input_padding (mis, 4, &local_error))
+ if (!ensure_input_padding (buf, 4, &local_error))
goto fail;
if (!just_align)
{
gboolean v;
- v = g_data_input_stream_read_uint32 (dis, NULL, &local_error);
+ v = g_memory_buffer_read_uint32 (buf, &local_error);
if (local_error != NULL)
goto fail;
ret = g_variant_new_boolean (v);
if (!just_align)
{
guchar v;
- v = g_data_input_stream_read_byte (dis, NULL, &local_error);
+ v = g_memory_buffer_read_byte (buf, &local_error);
if (local_error != NULL)
goto fail;
ret = g_variant_new_byte (v);
break;
case 'n': /* G_VARIANT_TYPE_INT16 */
- if (!ensure_input_padding (mis, 2, &local_error))
+ if (!ensure_input_padding (buf, 2, &local_error))
goto fail;
if (!just_align)
{
gint16 v;
- v = g_data_input_stream_read_int16 (dis, NULL, &local_error);
+ v = g_memory_buffer_read_int16 (buf, &local_error);
if (local_error != NULL)
goto fail;
ret = g_variant_new_int16 (v);
break;
case 'q': /* G_VARIANT_TYPE_UINT16 */
- if (!ensure_input_padding (mis, 2, &local_error))
+ if (!ensure_input_padding (buf, 2, &local_error))
goto fail;
if (!just_align)
{
guint16 v;
- v = g_data_input_stream_read_uint16 (dis, NULL, &local_error);
+ v = g_memory_buffer_read_uint16 (buf, &local_error);
if (local_error != NULL)
goto fail;
ret = g_variant_new_uint16 (v);
break;
case 'i': /* G_VARIANT_TYPE_INT32 */
- if (!ensure_input_padding (mis, 4, &local_error))
+ if (!ensure_input_padding (buf, 4, &local_error))
goto fail;
if (!just_align)
{
gint32 v;
- v = g_data_input_stream_read_int32 (dis, NULL, &local_error);
+ v = g_memory_buffer_read_int32 (buf, &local_error);
if (local_error != NULL)
goto fail;
ret = g_variant_new_int32 (v);
break;
case 'u': /* G_VARIANT_TYPE_UINT32 */
- if (!ensure_input_padding (mis, 4, &local_error))
+ if (!ensure_input_padding (buf, 4, &local_error))
goto fail;
if (!just_align)
{
guint32 v;
- v = g_data_input_stream_read_uint32 (dis, NULL, &local_error);
+ v = g_memory_buffer_read_uint32 (buf, &local_error);
if (local_error != NULL)
goto fail;
ret = g_variant_new_uint32 (v);
break;
case 'x': /* G_VARIANT_TYPE_INT64 */
- if (!ensure_input_padding (mis, 8, &local_error))
+ if (!ensure_input_padding (buf, 8, &local_error))
goto fail;
if (!just_align)
{
gint64 v;
- v = g_data_input_stream_read_int64 (dis, NULL, &local_error);
+ v = g_memory_buffer_read_int64 (buf, &local_error);
if (local_error != NULL)
goto fail;
ret = g_variant_new_int64 (v);
break;
case 't': /* G_VARIANT_TYPE_UINT64 */
- if (!ensure_input_padding (mis, 8, &local_error))
+ if (!ensure_input_padding (buf, 8, &local_error))
goto fail;
if (!just_align)
{
guint64 v;
- v = g_data_input_stream_read_uint64 (dis, NULL, &local_error);
+ v = g_memory_buffer_read_uint64 (buf, &local_error);
if (local_error != NULL)
goto fail;
ret = g_variant_new_uint64 (v);
break;
case 'd': /* G_VARIANT_TYPE_DOUBLE */
- if (!ensure_input_padding (mis, 8, &local_error))
+ if (!ensure_input_padding (buf, 8, &local_error))
goto fail;
if (!just_align)
{
gdouble v_double;
} u;
G_STATIC_ASSERT (sizeof (gdouble) == sizeof (guint64));
- u.v_uint64 = g_data_input_stream_read_uint64 (dis, NULL, &local_error);
+ u.v_uint64 = g_memory_buffer_read_uint64 (buf, &local_error);
if (local_error != NULL)
goto fail;
ret = g_variant_new_double (u.v_double);
break;
case 's': /* G_VARIANT_TYPE_STRING */
- if (!ensure_input_padding (mis, 4, &local_error))
+ if (!ensure_input_padding (buf, 4, &local_error))
goto fail;
if (!just_align)
{
guint32 len;
gchar *v;
- len = g_data_input_stream_read_uint32 (dis, NULL, &local_error);
+ len = g_memory_buffer_read_uint32 (buf, &local_error);
if (local_error != NULL)
goto fail;
- v = read_string (mis, dis, (gsize) len, &local_error);
+ v = read_string (buf, (gsize) len, &local_error);
if (v == NULL)
goto fail;
ret = g_variant_new_string (v);
break;
case 'o': /* G_VARIANT_TYPE_OBJECT_PATH */
- if (!ensure_input_padding (mis, 4, &local_error))
+ if (!ensure_input_padding (buf, 4, &local_error))
goto fail;
if (!just_align)
{
guint32 len;
gchar *v;
- len = g_data_input_stream_read_uint32 (dis, NULL, &local_error);
+ len = g_memory_buffer_read_uint32 (buf, &local_error);
if (local_error != NULL)
goto fail;
- v = read_string (mis, dis, (gsize) len, &local_error);
+ v = read_string (buf, (gsize) len, &local_error);
if (v == NULL)
goto fail;
if (!g_variant_is_object_path (v))
{
guchar len;
gchar *v;
- len = g_data_input_stream_read_byte (dis, NULL, &local_error);
+ len = g_memory_buffer_read_byte (buf, &local_error);
if (local_error != NULL)
goto fail;
- v = read_string (mis, dis, (gsize) len, &local_error);
+ v = read_string (buf, (gsize) len, &local_error);
if (v == NULL)
goto fail;
if (!g_variant_is_signature (v))
break;
case 'h': /* G_VARIANT_TYPE_HANDLE */
- if (!ensure_input_padding (mis, 4, &local_error))
+ if (!ensure_input_padding (buf, 4, &local_error))
goto fail;
if (!just_align)
{
gint32 v;
- v = g_data_input_stream_read_int32 (dis, NULL, &local_error);
+ v = g_memory_buffer_read_int32 (buf, &local_error);
if (local_error != NULL)
goto fail;
ret = g_variant_new_handle (v);
break;
case 'a': /* G_VARIANT_TYPE_ARRAY */
- if (!ensure_input_padding (mis, 4, &local_error))
+ if (!ensure_input_padding (buf, 4, &local_error))
goto fail;
/* If we are only aligning for this array type, it is the child type of
const GVariantType *element_type;
GVariantBuilder builder;
- array_len = g_data_input_stream_read_uint32 (dis, NULL, &local_error);
+ array_len = g_memory_buffer_read_uint32 (buf, &local_error);
if (local_error != NULL)
goto fail;
if (array_len == 0)
{
GVariant *item;
- item = parse_value_from_blob (mis,
- dis,
+ item = parse_value_from_blob (buf,
element_type,
TRUE,
indent + 2,
else
{
/* TODO: optimize array of primitive types */
- offset = g_seekable_tell (G_SEEKABLE (mis));
+ offset = buf->pos;
target = offset + array_len;
while (offset < target)
{
GVariant *item;
- item = parse_value_from_blob (mis,
- dis,
+ item = parse_value_from_blob (buf,
element_type,
FALSE,
indent + 2,
}
g_variant_builder_add_value (&builder, item);
g_variant_unref (item);
- offset = g_seekable_tell (G_SEEKABLE (mis));
+ offset = buf->pos;
}
}
GVariant *key;
GVariant *value;
- if (!ensure_input_padding (mis, 8, &local_error))
+ if (!ensure_input_padding (buf, 8, &local_error))
goto fail;
is_leaf = FALSE;
if (!just_align)
{
key_type = g_variant_type_key (type);
- key = parse_value_from_blob (mis,
- dis,
+ key = parse_value_from_blob (buf,
key_type,
FALSE,
indent + 2,
if (key == NULL)
goto fail;
value_type = g_variant_type_value (type);
- value = parse_value_from_blob (mis,
- dis,
+ value = parse_value_from_blob (buf,
value_type,
FALSE,
indent + 2,
}
else if (g_variant_type_is_tuple (type))
{
- if (!ensure_input_padding (mis, 8, &local_error))
+ if (!ensure_input_padding (buf, 8, &local_error))
goto fail;
is_leaf = FALSE;
while (element_type != NULL)
{
GVariant *item;
- item = parse_value_from_blob (mis,
- dis,
+ item = parse_value_from_blob (buf,
element_type,
FALSE,
indent + 2,
GVariantType *variant_type;
GVariant *value;
- siglen = g_data_input_stream_read_byte (dis, NULL, &local_error);
+ siglen = g_memory_buffer_read_byte (buf, &local_error);
if (local_error != NULL)
goto fail;
- sig = read_string (mis, dis, (gsize) siglen, &local_error);
+ sig = read_string (buf, (gsize) siglen, &local_error);
if (sig == NULL)
goto fail;
if (!g_variant_is_signature (sig))
}
variant_type = g_variant_type_new (sig);
g_free (sig);
- value = parse_value_from_blob (mis,
- dis,
+ value = parse_value_from_blob (buf,
variant_type,
FALSE,
indent + 2,
GError **error)
{
gboolean ret;
- GMemoryInputStream *mis;
- GDataInputStream *dis;
+ GMemoryBuffer mbuf;
GDBusMessage *message;
guchar endianness;
guchar major_protocol_version;
- GDataStreamByteOrder byte_order;
guint32 message_body_len;
GVariant *headers;
GVariant *item;
message = g_dbus_message_new ();
- mis = G_MEMORY_INPUT_STREAM (g_memory_input_stream_new_from_data (blob, blob_len, NULL));
- dis = g_data_input_stream_new (G_INPUT_STREAM (mis));
+ memset (&mbuf, 0, sizeof (mbuf));
+ mbuf.data = (gchar *)blob;
+ mbuf.len = mbuf.valid_len = blob_len;
- endianness = g_data_input_stream_read_byte (dis, NULL, NULL);
+ endianness = g_memory_buffer_read_byte (&mbuf, NULL);
switch (endianness)
{
case 'l':
- byte_order = G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN;
+ mbuf.byte_order = G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN;
message->byte_order = G_DBUS_MESSAGE_BYTE_ORDER_LITTLE_ENDIAN;
break;
case 'B':
- byte_order = G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN;
+ mbuf.byte_order = G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN;
message->byte_order = G_DBUS_MESSAGE_BYTE_ORDER_BIG_ENDIAN;
break;
default:
endianness);
goto out;
}
- g_data_input_stream_set_byte_order (dis, byte_order);
- message->type = g_data_input_stream_read_byte (dis, NULL, NULL);
- message->flags = g_data_input_stream_read_byte (dis, NULL, NULL);
- major_protocol_version = g_data_input_stream_read_byte (dis, NULL, NULL);
+ message->type = g_memory_buffer_read_byte (&mbuf, NULL);
+ message->flags = g_memory_buffer_read_byte (&mbuf, NULL);
+ major_protocol_version = g_memory_buffer_read_byte (&mbuf, NULL);
if (major_protocol_version != 1)
{
g_set_error (error,
major_protocol_version);
goto out;
}
- message_body_len = g_data_input_stream_read_uint32 (dis, NULL, NULL);
- message->serial = g_data_input_stream_read_uint32 (dis, NULL, NULL);
+ message_body_len = g_memory_buffer_read_uint32 (&mbuf, NULL);
+ message->serial = g_memory_buffer_read_uint32 (&mbuf, NULL);
#ifdef DEBUG_SERIALIZER
g_print ("Parsing blob (blob_len = 0x%04x bytes)\n", (gint) blob_len);
#ifdef DEBUG_SERIALIZER
g_print ("Parsing headers (blob_len = 0x%04x bytes)\n", (gint) blob_len);
#endif /* DEBUG_SERIALIZER */
- headers = parse_value_from_blob (mis,
- dis,
+ headers = parse_value_from_blob (&mbuf,
G_VARIANT_TYPE ("a{yv}"),
FALSE,
2,
#ifdef DEBUG_SERIALIZER
g_print ("Parsing body (blob_len = 0x%04x bytes)\n", (gint) blob_len);
#endif /* DEBUG_SERIALIZER */
- message->body = parse_value_from_blob (mis,
- dis,
+ message->body = parse_value_from_blob (&mbuf,
variant_type,
FALSE,
2,
ret = TRUE;
out:
- g_object_unref (dis);
- g_object_unref (mis);
-
if (ret)
{
return message;
/* ---------------------------------------------------------------------------------------------------- */
static gsize
-ensure_output_padding (GMemoryOutputStream *mos,
- GDataOutputStream *dos,
+ensure_output_padding (GMemoryBuffer *mbuf,
gsize padding_size)
{
gsize offset;
gsize padding_needed;
guint n;
- offset = g_memory_output_stream_get_data_size (mos);
+ offset = mbuf->pos;
wanted_offset = ((offset + padding_size - 1) / padding_size) * padding_size;
padding_needed = wanted_offset - offset;
for (n = 0; n < padding_needed; n++)
- g_data_output_stream_put_byte (dos, '\0', NULL, NULL);
+ g_memory_buffer_put_byte (mbuf, '\0');
return padding_needed;
}
static gboolean
append_value_to_blob (GVariant *value,
const GVariantType *type,
- GMemoryOutputStream *mos,
- GDataOutputStream *dos,
+ GMemoryBuffer *mbuf,
gsize *out_padding_added,
GError **error)
{
switch (type_string[0])
{
case 'b': /* G_VARIANT_TYPE_BOOLEAN */
- padding_added = ensure_output_padding (mos, dos, 4);
+ padding_added = ensure_output_padding (mbuf, 4);
if (value != NULL)
{
gboolean v = g_variant_get_boolean (value);
- g_data_output_stream_put_uint32 (dos, v, NULL, NULL);
+ g_memory_buffer_put_uint32 (mbuf, v);
}
break;
if (value != NULL)
{
guint8 v = g_variant_get_byte (value);
- g_data_output_stream_put_byte (dos, v, NULL, NULL);
+ g_memory_buffer_put_byte (mbuf, v);
}
break;
case 'n': /* G_VARIANT_TYPE_INT16 */
- padding_added = ensure_output_padding (mos, dos, 2);
+ padding_added = ensure_output_padding (mbuf, 2);
if (value != NULL)
{
gint16 v = g_variant_get_int16 (value);
- g_data_output_stream_put_int16 (dos, v, NULL, NULL);
+ g_memory_buffer_put_int16 (mbuf, v);
}
break;
case 'q': /* G_VARIANT_TYPE_UINT16 */
- padding_added = ensure_output_padding (mos, dos, 2);
+ padding_added = ensure_output_padding (mbuf, 2);
if (value != NULL)
{
guint16 v = g_variant_get_uint16 (value);
- g_data_output_stream_put_uint16 (dos, v, NULL, NULL);
+ g_memory_buffer_put_uint16 (mbuf, v);
}
break;
case 'i': /* G_VARIANT_TYPE_INT32 */
- padding_added = ensure_output_padding (mos, dos, 4);
+ padding_added = ensure_output_padding (mbuf, 4);
if (value != NULL)
{
gint32 v = g_variant_get_int32 (value);
- g_data_output_stream_put_int32 (dos, v, NULL, NULL);
+ g_memory_buffer_put_int32 (mbuf, v);
}
break;
case 'u': /* G_VARIANT_TYPE_UINT32 */
- padding_added = ensure_output_padding (mos, dos, 4);
+ padding_added = ensure_output_padding (mbuf, 4);
if (value != NULL)
{
guint32 v = g_variant_get_uint32 (value);
- g_data_output_stream_put_uint32 (dos, v, NULL, NULL);
+ g_memory_buffer_put_uint32 (mbuf, v);
}
break;
case 'x': /* G_VARIANT_TYPE_INT64 */
- padding_added = ensure_output_padding (mos, dos, 8);
+ padding_added = ensure_output_padding (mbuf, 8);
if (value != NULL)
{
gint64 v = g_variant_get_int64 (value);
- g_data_output_stream_put_int64 (dos, v, NULL, NULL);
+ g_memory_buffer_put_int64 (mbuf, v);
}
break;
case 't': /* G_VARIANT_TYPE_UINT64 */
- padding_added = ensure_output_padding (mos, dos, 8);
+ padding_added = ensure_output_padding (mbuf, 8);
if (value != NULL)
{
guint64 v = g_variant_get_uint64 (value);
- g_data_output_stream_put_uint64 (dos, v, NULL, NULL);
+ g_memory_buffer_put_uint64 (mbuf, v);
}
break;
case 'd': /* G_VARIANT_TYPE_DOUBLE */
- padding_added = ensure_output_padding (mos, dos, 8);
+ padding_added = ensure_output_padding (mbuf, 8);
if (value != NULL)
{
union {
} u;
G_STATIC_ASSERT (sizeof (gdouble) == sizeof (guint64));
u.v_double = g_variant_get_double (value);
- g_data_output_stream_put_uint64 (dos, u.v_uint64, NULL, NULL);
+ g_memory_buffer_put_uint64 (mbuf, u.v_uint64);
}
break;
case 's': /* G_VARIANT_TYPE_STRING */
- padding_added = ensure_output_padding (mos, dos, 4);
+ padding_added = ensure_output_padding (mbuf, 4);
if (value != NULL)
{
gsize len;
const gchar *end;
v = g_variant_get_string (value, &len);
g_assert (g_utf8_validate (v, -1, &end) && (end == v + len));
- g_data_output_stream_put_uint32 (dos, len, NULL, NULL);
- g_data_output_stream_put_string (dos, v, NULL, NULL);
- g_data_output_stream_put_byte (dos, '\0', NULL, NULL);
+ g_memory_buffer_put_uint32 (mbuf, len);
+ g_memory_buffer_put_string (mbuf, v);
+ g_memory_buffer_put_byte (mbuf, '\0');
}
break;
case 'o': /* G_VARIANT_TYPE_OBJECT_PATH */
- padding_added = ensure_output_padding (mos, dos, 4);
+ padding_added = ensure_output_padding (mbuf, 4);
if (value != NULL)
{
gsize len;
const gchar *v = g_variant_get_string (value, &len);
g_assert (g_variant_is_object_path (v));
- g_data_output_stream_put_uint32 (dos, len, NULL, NULL);
- g_data_output_stream_put_string (dos, v, NULL, NULL);
- g_data_output_stream_put_byte (dos, '\0', NULL, NULL);
+ g_memory_buffer_put_uint32 (mbuf, len);
+ g_memory_buffer_put_string (mbuf, v);
+ g_memory_buffer_put_byte (mbuf, '\0');
}
break;
gsize len;
const gchar *v = g_variant_get_string (value, &len);
g_assert (g_variant_is_signature (v));
- g_data_output_stream_put_byte (dos, len, NULL, NULL);
- g_data_output_stream_put_string (dos, v, NULL, NULL);
- g_data_output_stream_put_byte (dos, '\0', NULL, NULL);
+ g_memory_buffer_put_byte (mbuf, len);
+ g_memory_buffer_put_string (mbuf, v);
+ g_memory_buffer_put_byte (mbuf, '\0');
}
break;
case 'h': /* G_VARIANT_TYPE_HANDLE */
- padding_added = ensure_output_padding (mos, dos, 4);
+ padding_added = ensure_output_padding (mbuf, 4);
if (value != NULL)
{
gint32 v = g_variant_get_handle (value);
- g_data_output_stream_put_int32 (dos, v, NULL, NULL);
+ g_memory_buffer_put_int32 (mbuf, v);
}
break;
goffset cur_offset;
gsize array_len;
- padding_added = ensure_output_padding (mos, dos, 4);
+ padding_added = ensure_output_padding (mbuf, 4);
if (value != NULL)
{
/* array length - will be filled in later */
- array_len_offset = g_memory_output_stream_get_data_size (mos);
- g_data_output_stream_put_uint32 (dos, 0xF00DFACE, NULL, NULL);
+ array_len_offset = mbuf->valid_len;
+ g_memory_buffer_put_uint32 (mbuf, 0xF00DFACE);
/* From the D-Bus spec:
*
* Thus, we need to count how much padding the first element
* contributes and subtract that from the array length.
*/
- array_payload_begin_offset = g_memory_output_stream_get_data_size (mos);
+ array_payload_begin_offset = mbuf->valid_len;
if (g_variant_n_children (value) == 0)
{
gsize padding_added_for_item;
if (!append_value_to_blob (NULL,
g_variant_type_element (type),
- mos,
- dos,
+ mbuf,
&padding_added_for_item,
error))
goto fail;
gsize padding_added_for_item;
if (!append_value_to_blob (item,
g_variant_get_type (item),
- mos,
- dos,
+ mbuf,
&padding_added_for_item,
error))
{
}
}
- cur_offset = g_memory_output_stream_get_data_size (mos);
+ cur_offset = mbuf->valid_len;
array_len = cur_offset - array_payload_begin_offset;
- if (!g_seekable_seek (G_SEEKABLE (mos), array_len_offset, G_SEEK_SET, NULL, error))
- goto fail;
+ mbuf->pos = array_len_offset;
- g_data_output_stream_put_uint32 (dos, array_len, NULL, NULL);
- if (!g_seekable_seek (G_SEEKABLE (mos), cur_offset, G_SEEK_SET, NULL, error))
- goto fail;
+ g_memory_buffer_put_uint32 (mbuf, array_len);
+ mbuf->pos = cur_offset;
}
}
break;
default:
if (g_variant_type_is_dict_entry (type) || g_variant_type_is_tuple (type))
{
- padding_added = ensure_output_padding (mos, dos, 8);
+ padding_added = ensure_output_padding (mbuf, 8);
if (value != NULL)
{
GVariant *item;
{
if (!append_value_to_blob (item,
g_variant_get_type (item),
- mos,
- dos,
+ mbuf,
NULL,
error))
{
const gchar *signature;
child = g_variant_get_child_value (value, 0);
signature = g_variant_get_type_string (child);
- g_data_output_stream_put_byte (dos, strlen (signature), NULL, NULL);
- g_data_output_stream_put_string (dos, signature, NULL, NULL);
- g_data_output_stream_put_byte (dos, '\0', NULL, NULL);
+ g_memory_buffer_put_byte (mbuf, strlen (signature));
+ g_memory_buffer_put_string (mbuf, signature);
+ g_memory_buffer_put_byte (mbuf, '\0');
if (!append_value_to_blob (child,
g_variant_get_type (child),
- mos,
- dos,
+ mbuf,
NULL,
error))
{
static gboolean
append_body_to_blob (GVariant *value,
- GMemoryOutputStream *mos,
- GDataOutputStream *dos,
+ GMemoryBuffer *mbuf,
GError **error)
{
GVariant *item;
{
if (!append_value_to_blob (item,
g_variant_get_type (item),
- mos,
- dos,
+ mbuf,
NULL,
error))
{
GDBusCapabilityFlags capabilities,
GError **error)
{
- GMemoryOutputStream *mos;
- GDataOutputStream *dos;
+ GMemoryBuffer mbuf;
guchar *ret;
gsize size;
- GDataStreamByteOrder byte_order;
goffset body_len_offset;
goffset body_start_offset;
gsize body_size;
g_return_val_if_fail (out_size != NULL, NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
- mos = G_MEMORY_OUTPUT_STREAM (g_memory_output_stream_new (NULL, 0, g_realloc, g_free));
- dos = g_data_output_stream_new (G_OUTPUT_STREAM (mos));
+ memset (&mbuf, 0, sizeof (mbuf));
+ mbuf.len = MIN_ARRAY_SIZE;
+ mbuf.data = g_malloc (mbuf.len);
- byte_order = G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN;
+ mbuf.byte_order = G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN;
switch (message->byte_order)
{
case G_DBUS_MESSAGE_BYTE_ORDER_BIG_ENDIAN:
- byte_order = G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN;
+ mbuf.byte_order = G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN;
break;
case G_DBUS_MESSAGE_BYTE_ORDER_LITTLE_ENDIAN:
- byte_order = G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN;
+ mbuf.byte_order = G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN;
break;
}
- g_data_output_stream_set_byte_order (dos, byte_order);
/* Core header */
- g_data_output_stream_put_byte (dos, (guchar) message->byte_order, NULL, NULL);
- g_data_output_stream_put_byte (dos, message->type, NULL, NULL);
- g_data_output_stream_put_byte (dos, message->flags, NULL, NULL);
- g_data_output_stream_put_byte (dos, 1, NULL, NULL); /* major protocol version */
- body_len_offset = g_memory_output_stream_get_data_size (mos);
+ g_memory_buffer_put_byte (&mbuf, (guchar) message->byte_order);
+ g_memory_buffer_put_byte (&mbuf, message->type);
+ g_memory_buffer_put_byte (&mbuf, message->flags);
+ g_memory_buffer_put_byte (&mbuf, 1); /* major protocol version */
+ body_len_offset = mbuf.valid_len;
/* body length - will be filled in later */
- g_data_output_stream_put_uint32 (dos, 0xF00DFACE, NULL, NULL);
- g_data_output_stream_put_uint32 (dos, message->serial, NULL, NULL);
+ g_memory_buffer_put_uint32 (&mbuf, 0xF00DFACE);
+ g_memory_buffer_put_uint32 (&mbuf, message->serial);
num_fds_in_message = 0;
#ifdef G_OS_UNIX
if (!append_value_to_blob (header_fields,
g_variant_get_type (header_fields),
- mos, dos,
+ &mbuf,
NULL,
error))
{
g_variant_unref (header_fields);
/* header size must be a multiple of 8 */
- ensure_output_padding (mos, dos, 8);
+ ensure_output_padding (&mbuf, 8);
- body_start_offset = g_memory_output_stream_get_data_size (mos);
+ body_start_offset = mbuf.valid_len;
signature = g_dbus_message_get_header (message, G_DBUS_MESSAGE_HEADER_FIELD_SIGNATURE);
signature_str = NULL;
goto out;
}
g_free (tupled_signature_str);
- if (!append_body_to_blob (message->body, mos, dos, error))
+ if (!append_body_to_blob (message->body, &mbuf, error))
goto out;
}
else
}
/* OK, we're done writing the message - set the body length */
- size = g_memory_output_stream_get_data_size (mos);
+ size = mbuf.valid_len;
body_size = size - body_start_offset;
- if (!g_seekable_seek (G_SEEKABLE (mos), body_len_offset, G_SEEK_SET, NULL, error))
- goto out;
-
- g_data_output_stream_put_uint32 (dos, body_size, NULL, NULL);
+ mbuf.pos = body_len_offset;
- if (!g_output_stream_close (G_OUTPUT_STREAM (dos), NULL, error))
- goto out;
+ g_memory_buffer_put_uint32 (&mbuf, body_size);
*out_size = size;
- ret = g_memory_output_stream_steal_data (mos);
+ ret = (guchar *)mbuf.data;
out:
- g_object_unref (dos);
- g_object_unref (mos);
-
return ret;
}
projects / platform / upstream / glib.git / commitdiff