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struct | GArrowInputStream |
struct | GArrowSeekableInputStream |
struct | GArrowBufferInputStream |
struct | GArrowMemoryMappedInputStream |
struct | GArrowGIOInputStream |
GObject ╰── GArrowInputStream ╰── GArrowSeekableInputStream ├── GArrowBufferInputStream ├── GArrowGIOInputStream ╰── GArrowMemoryMappedInputStream
GArrowInputStream implements
GArrowSeekableInputStream implements
GArrowBufferInputStream implements
GArrowMemoryMappedInputStream implements
GArrowGIOInputStream 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.
GArrowMemoryMappedFile 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.
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 |
[nullable] |
GArrowBuffer that has read
data on success, NULL
if there was an error.
[transfer full][nullable]
GArrowTensor * garrow_seekable_input_stream_read_tensor (GArrowSeekableInputStream *input_stream
,gint64 position
,GError **error
);
Since: 0.4.0
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 GArrowSeekableInputStream;
It wraps arrow::io::RandomAccessFile
.
struct GArrowMemoryMappedInputStream;
It wraps arrow::io::MemoryMappedFile
.
“input-stream”
property“input-stream” gpointer
The raw std::shared<arrow::io::InputStream> *.
Flags: Write / Construct Only