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| author | Ludovic Courtès <ludo@gnu.org> | 2020-01-11 18:46:23 +0100 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2020-01-12 00:19:09 +0100 |
| commit | 7033c7692ccbbbad8f7b9952015de071a5588e87 (patch) | |
| tree | b9745bafa5fc88819f55224aa06a048d760ca063 /nix/libutil/util.hh | |
| parent | 79154f0a09ad748839f88120ddd61a0e1e147b5e (diff) | |
| download | guix-7033c7692ccbbbad8f7b9952015de071a5588e87.tar guix-7033c7692ccbbbad8f7b9952015de071a5588e87.tar.gz | |
daemon: Account for deleted store files when deduplication is on.
Previously, a store item that is a regular file would not be accounted
for in the 'bytesFreed' value computed by 'deletePath' because its
'st_nlink' count would always be >= 2. This commit fixes that.
* nix/libutil/util.hh (deletePath): Add optional 'linkThreshold' argument.
* nix/libutil/util.cc (_deletePath): Add 'linkThreshold' argument and
honor it. Pass it down in recursive call.
(deletePath): Add 'linkThreshold' and honor it.
* nix/libstore/gc.cc (LocalStore::deleteGarbage): Pass 'linkThreshold'
argument to 'deletePath', with a value of 2 when PATH is a store item
and deduplication is on.
Diffstat (limited to 'nix/libutil/util.hh')
| -rw-r--r-- | nix/libutil/util.hh | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/nix/libutil/util.hh b/nix/libutil/util.hh index 6a6e07c478..9e3c14bdd4 100644 --- a/nix/libutil/util.hh +++ b/nix/libutil/util.hh @@ -94,10 +94,12 @@ void writeLine(int fd, string s); /* Delete a path; i.e., in the case of a directory, it is deleted recursively. Don't use this at home, kids. The second variant - returns the number of bytes and blocks freed. */ + returns the number of bytes and blocks freed, and 'linkThreshold' denotes + the number of links under which a file is accounted for in 'bytesFreed'. */ void deletePath(const Path & path); -void deletePath(const Path & path, unsigned long long & bytesFreed); +void deletePath(const Path & path, unsigned long long & bytesFreed, + size_t linkThreshold = 1); /* Create a temporary directory. */ Path createTempDir(const Path & tmpRoot = "", const Path & prefix = "nix", |