package octez-internal-libs
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Dune Dependency
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sha256=ddfb5076eeb0b32ac21c1eed44e8fc86a6743ef18ab23fff02d36e365bb73d61
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doc/irmin_pack_unix/Irmin_pack_unix/Sparse_file/Make/Ao/index.html
Module Make.AoSource
end_off t returns the largest virtual offset contained in the sparse file t. Attempting to append with a strictly smaller virtual offset will fail.
end_off t returns the current size of the mapping file associated to the sparse file t including additions not yet flushed to the file system. It can be passed to open_ao as mapping_size when opening the file again.
create ~mapping ~data initializes a new empty sparse file, represented on disk by two files named mapping and data.
val open_ao :
mapping_size:Optint.Int63.t ->
mapping:string ->
data:string ->
(t,
[> Io.open_error
| `Closed
| `Invalid_argument
| `Read_out_of_bounds
| `Inconsistent_store ])
Stdlib.resultopen_ao ~mapping_size ~mapping ~data returns an append-only instance of the sparse file.
val append_seq_exn :
t ->
off:Optint.Int63.t ->
string Irmin.Export_for_backends.Seq.t ->
unitappend_seq_exn t ~off seq appends the sequence of strings seq to the sparse file t, at the virtual offset off which must be larger than the previously appended offsets.
Flush the append buffer. Does not call fsync.
Close the underlying files.