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Add support for updating file metadata (only the SRA bits, really).

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This commit is contained in:
David Given
2024-05-13 21:44:58 +02:00
parent 7643457374
commit 00e9c5a07f
2 changed files with 63 additions and 1 deletions
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38
lib/vfs/cpmfs.cc
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@@ -193,7 +193,7 @@ public:
uint32_t capabilities() const override
{
return OP_GETFSDATA | OP_LIST | OP_GETFILE | OP_PUTFILE | OP_DELETE |
OP_GETDIRENT | OP_CREATE | OP_MOVE;
OP_GETDIRENT | OP_CREATE | OP_MOVE | OP_PUTATTRS;
}
std::map<std::string, std::string> getMetadata() override
@@ -294,6 +294,42 @@ public:
throw FileNotFoundException();
}
void putMetadata(const Path& path,
const std::map<std::string, std::string>& metadata) override
{
mount();
if (path.size() != 1)
throw BadPathException();
/* Only updating MODE is supported. */
if (metadata.empty())
return;
if ((metadata.size() != 1) || (metadata.begin()->first != MODE))
throw UnimplementedFilesystemException();
auto mode = metadata.begin()->second;
/* Update all dirents corresponding to this file. */
bool found = false;
for (int d = 0; d < _config.dir_entries(); d++)
{
std::unique_ptr<Entry> entry = getEntry(d);
if (entry->deleted)
continue;
if (path[0] == entry->combinedFilename())
{
entry->mode = mode;
putEntry(entry);
found = true;
}
}
if (!found)
throw FileNotFoundException();
unmount();
}
Bytes getFile(const Path& path) override
{
mount();