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Support reading parameters automatically from the superblock in vitastor-disk {dump,write}-{meta,journal}

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This commit is contained in:
Vitaliy Filippov
2024-10-07 02:21:58 +03:00
parent 30e7c2ad1e
commit c5a58c2e81
9 changed files with 133 additions and 36 deletions
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src/disk_tool/disk_tool_meta.cpp
+26
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@@ -4,6 +4,7 @@
#include "disk_tool.h"
#include "rw_blocking.h"
#include "osd_id.h"
#include "json_util.h"
int disk_tool_t::process_meta(std::function<void(blockstore_meta_header_v2_t *)> hdr_fn,
std::function<void(uint64_t, clean_disk_entry*, uint8_t*)> record_fn)
@@ -149,6 +150,31 @@ int disk_tool_t::process_meta(std::function<void(blockstore_meta_header_v2_t *)>
return 0;
}
int disk_tool_t::dump_load_check_superblock(const std::string & device)
{
json11::Json sb = read_osd_superblock(device, true, false);
if (sb.is_null())
return 1;
try
{
auto cfg = json_to_string_map(sb["params"].object_items());
dsk.parse_config(cfg);
dsk.data_io = dsk.meta_io = dsk.journal_io = "cached";
dsk.open_data();
dsk.open_meta();
dsk.open_journal();
dsk.calc_lengths(true);
}
catch (std::exception & e)
{
dsk.close_all();
fprintf(stderr, "%s\n", e.what());
return 1;
}
dsk.close_all();
return 0;
}
int disk_tool_t::dump_meta()
{
int r = process_meta(