diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/Module.zig | 33 |
1 files changed, 19 insertions, 14 deletions
diff --git a/src/Module.zig b/src/Module.zig index f3f1aa44e2..8c52176edd 100644 --- a/src/Module.zig +++ b/src/Module.zig @@ -3569,20 +3569,25 @@ pub fn astGenFile(mod: *Module, file: *File) !void { // If another process is already working on this file, we will get the cached // version. Likewise if we're working on AstGen and another process asks for // the cached file, they'll get it. - const cache_file = zir_dir.createFile(&digest, .{ - .read = true, - .truncate = false, - .lock = lock, - }) catch |err| switch (err) { - error.NotDir => unreachable, // no dir components - error.InvalidUtf8 => unreachable, // it's a hex encoded name - error.BadPathName => unreachable, // it's a hex encoded name - error.NameTooLong => unreachable, // it's a fixed size name - error.PipeBusy => unreachable, // it's not a pipe - error.WouldBlock => unreachable, // not asking for non-blocking I/O - error.FileNotFound => unreachable, // no dir components - - else => |e| return e, // Retryable errors are handled at callsite. + const cache_file = while (true) { + break zir_dir.createFile(&digest, .{ + .read = true, + .truncate = false, + .lock = lock, + }) catch |err| switch (err) { + error.NotDir => unreachable, // no dir components + error.InvalidUtf8 => unreachable, // it's a hex encoded name + error.BadPathName => unreachable, // it's a hex encoded name + error.NameTooLong => unreachable, // it's a fixed size name + error.PipeBusy => unreachable, // it's not a pipe + error.WouldBlock => unreachable, // not asking for non-blocking I/O + // There are no dir components, so you would think that this was + // unreachable, however we have observed on macOS two processes racing + // to do openat() with O_CREAT manifest in ENOENT. + error.FileNotFound => continue, + + else => |e| return e, // Retryable errors are handled at callsite. + }; }; defer cache_file.close(); |