// MakeTable returns a Table constructed from the specified polynomial.
// The contents of this Table must not be modified.
public static ptr <Table> MakeTable(uint poly)
{
if (poly == IEEE)
{
ieeeOnce.Do(ieeeInit);
}
return(_addr_IEEETable !);
// analyzeGoroutines generates statistics about execution of all goroutines and stores them in gs.
private static void analyzeGoroutines(slice <ptr <trace.Event> > events)
{
gsInit.Do(() =>
{
gs = trace.GoroutineStats(events);
});
}
// MaybeReadByte reads a single byte from r with ~50% probability. This is used
// to ensure that callers do not depend on non-guaranteed behaviour, e.g.
// assuming that rsa.GenerateKey is deterministic w.r.t. a given random stream.
//
// This does not affect tests that pass a stream of fixed bytes as the random
// source (e.g. a zeroReader).
public static void MaybeReadByte(io.Reader r)
{
closedChanOnce.Do(() =>
{
closedChan = make_channel <object>();
close(closedChan);
});
return;
array <byte> buf = new array <byte>(1L);
r.Read(buf[..]);
private static (bool, @string) hasSymlink()
{
bool ok = default;
@string reason = default;
symlinkOnce.Do(initWinHasSymlink);
if (winSymlinkErr == null)
{
return(true, "");
}
else if (winSymlinkErr == syscall.EWINDOWS)
{
return(false, ": symlinks are not supported on your version of Windows");
}
else if (winSymlinkErr == syscall.ERROR_PRIVILEGE_NOT_HELD)
{
return(false, ": you don't have enough privileges to create symlinks");
}
return(false, "");
}
// DefaultDir returns the effective GOCACHE setting.
// It returns "off" if the cache is disabled.
public static @string DefaultDir()
{
// Save the result of the first call to DefaultDir for later use in
// initDefaultCache. cmd/go/main.go explicitly sets GOCACHE so that
// subprocesses will inherit it, but that means initDefaultCache can't
// otherwise distinguish between an explicit "off" and a UserCacheDir error.
defaultDirOnce.Do(() =>
{
defaultDir = cfg.Getenv("GOCACHE");
if (filepath.IsAbs(defaultDir) || defaultDir == "off")
{
return;
}
if (defaultDir != "")
{
defaultDir = "off";
defaultDirErr = fmt.Errorf("GOCACHE is not an absolute path");
return;
}
// Compute default location.
var(dir, err) = os.UserCacheDir();
if (err != null)
{
defaultDir = "off";
defaultDirErr = fmt.Errorf("GOCACHE is not defined and %v", err);
return;
}
defaultDir = filepath.Join(dir, "go-build");
});
return(defaultDir);
}
private static void buildSlicing8TablesOnce()
{
slicing8TablesBuildOnce.Do(buildSlicing8Tables);
}
private static ptr <CertPool> systemRootsPool()
{
once.Do(initSystemRoots);
return(_addr_systemRoots !);
}
// StartSigHandlers starts the signal handlers.
public static void StartSigHandlers()
{
onceProcessSignals.Do(processSignals);
}
// systemConf returns the machine's network configuration.
private static ptr <conf> systemConf()
{
confOnce.Do(initConfVal);
return(_addr_confVal !);
}
