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GArrowBuffer * | buffer | Read / Write / Construct Only |
gpointer | input-stream | Write / Construct Only |
GObject ╰── GArrowInputStream ├── GArrowSeekableInputStream │ ├── GArrowBufferInputStream │ ├── GArrowGIOInputStream │ ╰── GArrowMemoryMappedInputStream ╰── GArrowSeekableInputStream ├── GArrowBufferInputStream ├── GArrowGIOInputStream ╰── GArrowMemoryMappedInputStream
GArrowMemoryMappedInputStream implements
GArrowGIOInputStream implements
GArrowBufferInputStream implements
GArrowInputStream implements
GArrowSeekableInputStream implements
GArrowInputStream is a base class for input stream.
GArrowSeekableInputStream is a base class for input stream that supports random access.
GArrowBufferInputStream is a class to read data on buffer.
GArrowMemoryMappedInputStream is a class to read data in file by mapping the file on memory. It supports zero copy.
GArrowGIOInputStream is a class for GInputStream
based input
stream.
gboolean garrow_input_stream_advance (GArrowInputStream *input_stream
,gint64 n_bytes
,GError **error
);
input_stream |
||
n_bytes |
The number of bytes to be advanced. |
|
error |
Return location for a GError or |
[nullable] |
Since: 0.11.0
gboolean garrow_input_stream_align (GArrowInputStream *input_stream
,gint32 alignment
,GError **error
);
input_stream |
||
alignment |
The byte multiple for the metadata prefix, usually 8 or 64, to ensure the body starts on a multiple of that alignment. |
|
error |
Return location for a GError or |
[nullable] |
Since: 0.11.0
GArrowTensor * garrow_input_stream_read_tensor (GArrowInputStream *input_stream
,GError **error
);
Since: 0.11.0
guint64 garrow_seekable_input_stream_get_size (GArrowSeekableInputStream *input_stream
,GError **error
);
gboolean
garrow_seekable_input_stream_get_support_zero_copy
(GArrowSeekableInputStream *input_stream
);
GArrowBuffer * garrow_seekable_input_stream_read_at (GArrowSeekableInputStream *input_stream
,gint64 position
,gint64 n_bytes
,GError **error
);
input_stream |
||
position |
The read start position. |
|
n_bytes |
The number of bytes to be read. |
|
error |
Return location for a GError or |
[nullable] |
GArrowBuffer that has read
data on success, NULL
if there was an error.
[transfer full][nullable]
GArrowBufferInputStream *
garrow_buffer_input_stream_new (GArrowBuffer *buffer
);
GArrowBuffer *
garrow_buffer_input_stream_get_buffer (GArrowBufferInputStream *input_stream
);
GArrowMemoryMappedInputStream * garrow_memory_mapped_input_stream_new (const gchar *path
,GError **error
);
GArrowGIOInputStream *
garrow_gio_input_stream_new (GInputStream *gio_input_stream
);
Since: 0.5.0
GInputStream *
garrow_gio_input_stream_get_raw (GArrowGIOInputStream *input_stream
);
Since: 0.5.0
struct GArrowSeekableInputStreamClass { GArrowInputStreamClass parent_class; };
struct GArrowBufferInputStreamClass { GArrowSeekableInputStreamClass parent_class; };
struct GArrowMemoryMappedInputStream;
It wraps arrow::io::MemoryMappedFile
.