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Open file with exclusive lock

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This commit is contained in:
LeRoyce Pearson 2020-04-11 15:24:20 -06:00 committed by Andrew Kelley
parent 204aa7dc1a
commit 73d2747084
1 changed files with 6 additions and 2 deletions
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8
lib/std/cache_hash.zig
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@ -139,7 +139,11 @@ pub const CacheHash = struct {
const manifest_file_path = try fmt.allocPrint(self.alloc, "{}.txt", .{self.b64_digest});
defer self.alloc.free(manifest_file_path);
self.manifest_file = try self.manifest_dir.createFile(manifest_file_path, .{ .read = true, .truncate = false });
self.manifest_file = try self.manifest_dir.createFile(manifest_file_path, .{
.read = true,
.truncate = false,
.lock = .Exclusive,
});
}
// TODO: Figure out a good max value?
@ -213,7 +217,7 @@ pub const CacheHash = struct {
if (any_file_changed) {
// cache miss
// keep the manifest file open (TODO: with rw lock)
// keep the manifest file open
// reset the hash
self.blake3 = Blake3.init();
self.blake3.update(&bin_digest);