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Diffstat (limited to 'src/lib/istream-seekable.h')
-rw-r--r-- | src/lib/istream-seekable.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/lib/istream-seekable.h b/src/lib/istream-seekable.h new file mode 100644 index 0000000..4cee396 --- /dev/null +++ b/src/lib/istream-seekable.h @@ -0,0 +1,28 @@ +#ifndef ISTREAM_SEEKABLE_H +#define ISTREAM_SEEKABLE_H + +/* Create a seekable stream from given NULL-terminated list of input streams. + Try to keep it in memory, but use a temporary file if it's too large. + + When max_buffer_size is reached, fd_callback is called. It should return + the fd and path of the created file. Typically the callback would also + unlink the file before returning. */ +struct istream * +i_streams_merge(struct istream *input[], size_t max_buffer_size, + int (*fd_callback)(const char **path_r, void *context), + void *context) ATTR_NULL(4); + +/* Same as i_streams_merge(), but if all of the inputs are seekable already, + create a concat stream instead. */ +struct istream * +i_stream_create_seekable(struct istream *input[], + size_t max_buffer_size, + int (*fd_callback)(const char **path_r, void *context), + void *context) ATTR_NULL(4); + +struct istream * +i_stream_create_seekable_path(struct istream *input[], + size_t max_buffer_size, + const char *temp_path_prefix); + +#endif |