// LoadWithOptions loads and executes a javascript file with the ScriptOrigin specified by
// origin and the contents of the file specified by the param code.
func (w *Worker) LoadWithOptions(origin *ScriptOrigin, code string) error {
cCode := C.CString(code)
if origin == nil {
origin = new(ScriptOrigin)
}
if origin.ScriptName == "" {
origin.ScriptName = nextScriptName()
}
cScriptName := C.CString(origin.ScriptName)
cLineOffset := C.int(origin.LineOffset)
cColumnOffset := C.int(origin.ColumnOffset)
cIsSharedCrossOrigin := C.bool(origin.IsSharedCrossOrigin)
cScriptId := C.int(origin.ScriptId)
cIsEmbedderDebugScript := C.bool(origin.IsEmbedderDebugScript)
cSourceMapURL := C.CString(origin.SourceMapURL)
cIsOpaque := C.bool(origin.IsOpaque)
defer C.free(unsafe.Pointer(cScriptName))
defer C.free(unsafe.Pointer(cCode))
defer C.free(unsafe.Pointer(cSourceMapURL))
r := C.worker_load(w.cWorker, cCode, cScriptName, cLineOffset, cColumnOffset, cIsSharedCrossOrigin, cScriptId, cIsEmbedderDebugScript, cSourceMapURL, cIsOpaque)
if r != 0 {
errStr := C.worker_last_exception(w.cWorker)
return errors.New(C.GoString(errStr))
}
return nil
}
// Open creates options and opens the database. If the database
// doesn't yet exist at the specified directory, one is initialized
// from scratch. The RocksDB Open and Close methods are reference
// counted such that subsequent Open calls to an already opened
// RocksDB instance only bump the reference count. The RocksDB is only
// closed when a sufficient number of Close calls are performed to
// bring the reference count down to 0.
func (r *RocksDB) Open() error {
if r.rdb != nil {
return nil
}
if r.memtableBudget < minMemtableBudget {
return util.Errorf("memtable budget must be at least %s: %s",
humanize.IBytes(minMemtableBudget), humanizeutil.IBytes(r.memtableBudget))
}
var ver storageVersion
if len(r.dir) != 0 {
log.Infof("opening rocksdb instance at %q", r.dir)
// Check the version number.
var err error
if ver, err = getVersion(r.dir); err != nil {
return err
}
if ver < versionMinimum || ver > versionCurrent {
// Instead of an error, we should call a migration if possible when
// one is needed immediately following the DBOpen call.
return fmt.Errorf("incompatible rocksdb data version, current:%d, on disk:%d, minimum:%d",
versionCurrent, ver, versionMinimum)
}
} else {
log.Infof("opening in memory rocksdb instance")
// In memory dbs are always current.
ver = versionCurrent
}
status := C.DBOpen(&r.rdb, goToCSlice([]byte(r.dir)),
C.DBOptions{
cache_size: C.uint64_t(r.cacheSize),
memtable_budget: C.uint64_t(r.memtableBudget),
block_size: C.uint64_t(envutil.EnvOrDefaultBytes("rocksdb_block_size", defaultBlockSize)),
wal_ttl_seconds: C.uint64_t(envutil.EnvOrDefaultDuration("rocksdb_wal_ttl", 0).Seconds()),
allow_os_buffer: C.bool(true),
logging_enabled: C.bool(log.V(3)),
})
if err := statusToError(status); err != nil {
return util.Errorf("could not open rocksdb instance: %s", err)
}
// Update or add the version file if needed.
if ver < versionCurrent {
if err := writeVersionFile(r.dir); err != nil {
return err
}
}
// Start a goroutine that will finish when the underlying handle
// is deallocated. This is used to check a leak in tests.
go func() {
<-r.deallocated
}()
r.stopper.AddCloser(r)
return nil
}
// Open creates options and opens the database. If the database
// doesn't yet exist at the specified directory, one is initialized
// from scratch. The RocksDB Open and Close methods are reference
// counted such that subsequent Open calls to an already opened
// RocksDB instance only bump the reference count. The RocksDB is only
// closed when a sufficient number of Close calls are performed to
// bring the reference count down to 0.
func (r *RocksDB) Open() error {
if r.rdb != nil {
atomic.AddInt32(&r.refcount, 1)
return nil
}
if len(r.dir) == 0 {
log.Infof("opening in-memory rocksdb instance")
} else {
log.Infof("opening rocksdb instance at %q", r.dir)
}
status := C.DBOpen(&r.rdb, goToCSlice([]byte(r.dir)),
C.DBOptions{
cache_size: C.int64_t(r.cacheSize),
allow_os_buffer: C.bool(true),
logging_enabled: C.bool(log.V(3)),
})
err := statusToError(status)
if err != nil {
return util.Errorf("could not open rocksdb instance: %s", err)
}
atomic.AddInt32(&r.refcount, 1)
return nil
}
// Open creates options and opens the database. If the database
// doesn't yet exist at the specified directory, one is initialized
// from scratch. The RocksDB Open and Close methods are reference
// counted such that subsequent Open calls to an already opened
// RocksDB instance only bump the reference count. The RocksDB is only
// closed when a sufficient number of Close calls are performed to
// bring the reference count down to 0.
func (r *RocksDB) Open() error {
if r.rdb != nil {
return nil
}
if len(r.dir) != 0 {
log.Infof("opening rocksdb instance at %q", r.dir)
}
status := C.DBOpen(&r.rdb, goToCSlice([]byte(r.dir)),
C.DBOptions{
cache_size: C.uint64_t(r.cacheSize),
memtable_budget: C.uint64_t(r.memtableBudget),
allow_os_buffer: C.bool(true),
logging_enabled: C.bool(log.V(3)),
})
err := statusToError(status)
if err != nil {
return util.Errorf("could not open rocksdb instance: %s", err)
}
// Start a goroutine that will finish when the underlying handle
// is deallocated. This is used to check a leak in tests.
go func() {
<-r.deallocated
}()
r.stopper.AddCloser(r)
return nil
}
//export image_progress_callback
func image_progress_callback(goCallback unsafe.Pointer, done C.float) C.bool {
if goCallback == nil {
return C.bool(false)
}
fn := *(*ProgressCallback)(goCallback)
cancel := fn(float32(done))
return C.bool(cancel)
}
func (r *RocksDB) open() error {
var ver storageVersion
if len(r.dir) != 0 {
log.Infof(context.TODO(), "opening rocksdb instance at %q", r.dir)
// Check the version number.
var err error
if ver, err = getVersion(r.dir); err != nil {
return err
}
if ver < versionMinimum || ver > versionCurrent {
// Instead of an error, we should call a migration if possible when
// one is needed immediately following the DBOpen call.
return fmt.Errorf("incompatible rocksdb data version, current:%d, on disk:%d, minimum:%d",
versionCurrent, ver, versionMinimum)
}
} else {
if log.V(2) {
log.Infof(context.TODO(), "opening in memory rocksdb instance")
}
// In memory dbs are always current.
ver = versionCurrent
}
blockSize := envutil.EnvOrDefaultBytes("COCKROACH_ROCKSDB_BLOCK_SIZE", defaultBlockSize)
walTTL := envutil.EnvOrDefaultDuration("COCKROACH_ROCKSDB_WAL_TTL", 0).Seconds()
status := C.DBOpen(&r.rdb, goToCSlice([]byte(r.dir)),
C.DBOptions{
cache: r.cache.cache,
block_size: C.uint64_t(blockSize),
wal_ttl_seconds: C.uint64_t(walTTL),
allow_os_buffer: C.bool(true),
logging_enabled: C.bool(log.V(3)),
num_cpu: C.int(runtime.NumCPU()),
max_open_files: C.int(r.maxOpenFiles),
})
if err := statusToError(status); err != nil {
return errors.Errorf("could not open rocksdb instance: %s", err)
}
// Update or add the version file if needed.
if ver < versionCurrent {
if err := writeVersionFile(r.dir); err != nil {
return err
}
}
// Start a goroutine that will finish when the underlying handle
// is deallocated. This is used to check a leak in tests.
go func() {
<-r.deallocated
}()
return nil
}
// Generic channel shuffling: copy src to dst, but with channels in the order specified by
// ChannelOpts.Order[0..nchannels-1]. Does not support in-place operation.
//
// See ChannelOpts docs for more details on the options.
func Channels(dst, src *ImageBuf, nchannels int, opts ...*ChannelOpts) error {
var (
order *C.int32_t
values *C.float
newNames **C.char
shuffle C.bool = C.bool(false)
)
var opt *ChannelOpts
if len(opts) > 0 {
opt = opts[len(opts)-1]
}
if opt != nil {
shuffle = C.bool(opt.ShuffleNames)
if opt.Order != nil {
if len(opt.Order) < nchannels {
return fmt.Errorf("ChannelOpts.Order length %d is less than nchannels %d",
len(opt.Order), nchannels)
}
order = (*C.int32_t)(unsafe.Pointer(&opt.Order[0]))
}
if opt.Values != nil {
if len(opt.Values) < nchannels {
return fmt.Errorf("ChannelOpts.Values length %d is less than nchannels %d",
len(opt.Values), nchannels)
}
values = (*C.float)(unsafe.Pointer(&opt.Values[0]))
}
if opt.NewNames != nil {
if len(opt.NewNames) < nchannels {
return fmt.Errorf("ChannelOpts.NewNames length %d is less than nchannels %d",
len(opt.NewNames), nchannels)
}
nameSize := len(opt.NewNames)
newNames = C.makeCharArray(C.int(nameSize))
defer C.freeCharArray(newNames, C.int(nameSize))
for i, s := range opt.NewNames {
C.setArrayString(newNames, C.CString(s), C.int(i))
}
}
}
ok := C.channels(dst.ptr, src.ptr, C.int(nchannels), order, values, newNames, shuffle)
if !bool(ok) {
return dst.LastError()
}
return nil
}
// Create a C struct to hold the Tox client startup options. This struct
// contains C heap items that must be freed to prevent memory leaks.
func (options *ToxOptions) cOptions() (c_options *C.struct_Tox_Options) {
// Initialize the return object.
c_options = &C.struct_Tox_Options{}
// Copy the fields.
c_options.ipv6_enabled = C.bool(options.IPv6Enabled)
c_options.udp_enabled = C.bool(options.UDPEnabled)
c_options.proxy_type = C.TOX_PROXY_TYPE(options.ProxyType)
c_options.proxy_host = C.CString(options.ProxyHost)
c_options.proxy_port = C.uint16_t(options.ProxyPort)
c_options.start_port = C.uint16_t(options.StartPort)
c_options.end_port = C.uint16_t(options.EndPort)
return
}
// Restore restores the container from a checkpoint.
func (c *Container) Restore(opts RestoreOptions) error {
if err := c.makeSure(isGreaterEqualThanLXC11); err != nil {
return err
}
cdirectory := C.CString(opts.Directory)
defer C.free(unsafe.Pointer(cdirectory))
cverbose := C.bool(opts.Verbose)
if !C.bool(C.go_lxc_restore(c.container, cdirectory, cverbose)) {
return ErrRestoreFailed
}
return nil
}
// Checkpoint checkpoints the container.
func (c *Container) Checkpoint(opts CheckpointOptions) error {
if err := c.makeSure(isRunning | isGreaterEqualThanLXC11); err != nil {
return err
}
cdirectory := C.CString(opts.Directory)
defer C.free(unsafe.Pointer(cdirectory))
cstop := C.bool(opts.Stop)
cverbose := C.bool(opts.Verbose)
if !C.go_lxc_checkpoint(c.container, cdirectory, cstop, cverbose) {
return ErrCheckpointFailed
}
return nil
}
// Delete a key
func (client *Client) Delete(key string) error {
client.lock()
defer client.unlock()
rawKey := client.addPrefix(key)
cKey := C.CString(rawKey)
defer C.free(unsafe.Pointer(cKey))
cKeyLen := C.size_t(len(rawKey))
cNoreply := C.bool(client.noreply)
var rst **C.message_result_t
var n C.size_t
errCode := C.client_delete(
client._imp, &cKey, &cKeyLen, cNoreply, 1, &rst, &n,
)
defer C.client_destroy_message_result(client._imp)
if errCode == 0 {
if client.noreply {
return nil
} else if int(n) == 1 && ((*rst).type_ == C.MSG_DELETED || (*rst).type_ == C.MSG_NOT_FOUND) {
return nil
}
}
return errors.New(errorMessage[errCode])
}
// make is needed to create types for use by test
func makevalue(v interface{}) (UnionSassValue, error) {
f := reflect.ValueOf(v)
err := error(nil)
switch f.Kind() {
default:
return C.sass_make_null(), err
case reflect.Bool:
return C.sass_make_boolean(C.bool(v.(bool))), err
case reflect.String:
return C.sass_make_string(C.CString(v.(string))), err
case reflect.Struct: //only SassNumber and color.RGBA are supported
if reflect.TypeOf(v).String() == "context.SassNumber" {
var sn = v.(SassNumber)
return C.sass_make_number(C.double(sn.Value), C.CString(sn.Unit)), err
} else if reflect.TypeOf(v).String() == "color.RGBA" {
var sc = v.(color.RGBA)
return C.sass_make_color(C.double(sc.R), C.double(sc.G), C.double(sc.B), C.double(sc.A)), err
} else {
err = errors.New(fmt.Sprintf("The struct type %s is unsupported for marshalling", reflect.TypeOf(v).String()))
return C.sass_make_null(), err
}
case reflect.Slice:
// Initialize the list
l := C.sass_make_list(C.size_t(f.Len()), C.SASS_COMMA)
for i := 0; i < f.Len(); i++ {
t, er := makevalue(f.Index(i).Interface())
if err == nil && er != nil {
err = er
}
C.sass_list_set_value(l, C.size_t(i), t)
}
return l, err
}
}
// Processes the accumulated input data and returns the new output meta-block,
// or zero if no new output meta-block was created (in this case the processed
// input data is buffered internally).
// Returns ErrInputLargerThanBlockSize if more data was copied to the ring buffer
// than the block sized.
// If isLast or forceFlush is true, an output meta-block is always created
func (bp *brotliCompressor) writeBrotliData(isLast bool, forceFlush bool) ([]byte, error) {
var outSize C.size_t
var output *C.uint8_t
success := C.CBrotliCompressorWriteBrotliData(bp.c, C.bool(isLast), C.bool(forceFlush), &outSize, &output)
if success == false {
return nil, errInputLargerThanBlockSize
}
// resize buffer if output is larger than we've anticipated
if int(outSize) > cap(bp.outputBuffer) {
bp.outputBuffer = make([]byte, int(outSize))
}
C.memcpy(unsafe.Pointer(&bp.outputBuffer[0]), unsafe.Pointer(output), outSize)
return bp.outputBuffer[:outSize], nil
}
// Delete a key
func (client *Client) Delete(key string) error {
client.lock()
defer client.unlock()
rawKey := client.addPrefix(key)
cKey := C.CString(rawKey)
defer C.free(unsafe.Pointer(cKey))
cKeyLen := C.size_t(len(rawKey))
cNoreply := C.bool(client.noreply)
var rst **C.message_result_t
var n C.size_t
errCode := C.client_delete(
client._imp, &cKey, &cKeyLen, cNoreply, 1, &rst, &n,
)
defer C.client_destroy_message_result(client._imp)
if errCode == 0 {
if client.noreply {
return nil
} else if int(n) == 1 {
if (*rst).type_ == C.MSG_DELETED {
return nil
} else if (*rst).type_ == C.MSG_NOT_FOUND {
return ErrCacheMiss
}
}
} else if errCode == C.RET_INVALID_KEY_ERR {
return ErrMalformedKey
}
return networkError(errorMessage[errCode])
}
// Equal checks two Certs for equality
func (c *Cert) Equal(compare *Cert) bool {
check := C.zcert_eq(c.zcertT, compare.zcertT)
if check == C.bool(true) {
return true
}
return false
}
// Keypad turns on/off the keypad characters, including those like the F1-F12
// keys and the arrow keys
func (w *Window) Keypad(keypad bool) error {
var err C.int
if err = C.keypad(w.win, C.bool(keypad)); err == C.ERR {
return errors.New("Unable to set keypad mode")
}
return nil
}
// Touch command
func (client *Client) Touch(key string, expiration int64) error {
client.lock()
defer client.unlock()
rawKey := client.addPrefix(key)
cKey := C.CString(rawKey)
defer C.free(unsafe.Pointer(cKey))
cKeyLen := C.size_t(len(rawKey))
cExptime := C.exptime_t(expiration)
cNoreply := C.bool(client.noreply)
var rst **C.message_result_t
var n C.size_t
errCode := C.client_touch(
client._imp, &cKey, &cKeyLen, cExptime, cNoreply, 1, &rst, &n,
)
defer C.client_destroy_message_result(client._imp)
if errCode == 0 {
if client.noreply {
return nil
} else if int(n) == 1 && (*rst).type_ == C.MSG_TOUCHED {
return nil
}
}
return errors.New(errorMessage[errCode])
}
func (c *Config) SetStrictParsingEnabled(enabled bool) error {
_, err := C.Config_setStrictParsingEnabled(c.ptr, C.bool(enabled))
if err != nil {
return c.lastError()
}
return err
}
// This routine will return the error string (and clear any error
// flags). If no error has occurred since the last time GetError()
// was called, it will return an empty string.
func (c *ColorConfig) error() error {
isError := C.ColorConfig_error(c.ptr)
if C.bool(isError) {
return errors.New(C.GoString(C.ColorConfig_geterror(c.ptr)))
}
return nil
}
/* Enables the reading of all keys on a keyboard (that the operating system will interpret) */
func Keypad(win *Window, translate bool) {
temp := 0
if translate {
temp = 1
}
C.keypad((*C.WINDOW)(win), C.bool(temp))
}
// Creates new SSL connection for the underlying reader and writer.
func NewConn(reader io.Reader, writer io.Writer,
config *Config, server bool) (*Conn, error) {
c := &Conn{}
if server && (config.Cert == nil || config.PrivateKey == nil) {
panic("Cert and PrivateKey are required for server SSL connections")
}
sslConnConfig := newSSLConnConfig(config)
defer cleanupSSLConnConfig(sslConnConfig)
sslConnConfig.is_server = C.bool(server)
sslConnConfig.ptr = unsafe.Pointer(c)
var sslConnError C.SSLConnError
c.sslConn = C.SSLConn_new(sslConnConfig,
(*C.SSLConnError)(unsafe.Pointer(&sslConnError)))
if c.sslConn == nil {
return nil, errors.New(C.GoString(&sslConnError.string[0]))
}
c.lock = &sync.Mutex{}
c.reader = NewNonBlockingReader(reader, defaultBufferSize)
c.writer = NewNonBlockingWriter(writer, defaultBufferSize)
return c, nil
}
func scan(tryhard bool, stride int, pixels []uint8) ([]string, error) {
outputs := make([]*C.char, 8)
count, e := C.scan(
C.bool(tryhard),
C.int(stride),
C.int(len(pixels)),
(*C.char)(unsafe.Pointer(&pixels[0])),
C.int(len(outputs)),
&outputs[0],
)
if e != nil {
return nil, e
}
results := make([]string, 0, count)
for i := 0; i < int(count); i++ {
str := C.GoString(outputs[i])
results = append(results, str)
C.free(unsafe.Pointer(outputs[i]))
}
return results, nil
}
// Configure the will message. Must be called before Connect().
func (client *MosquittoClient) SetWillMessage(topic string, payload []byte, qos int, retain bool) error {
ctopic := C.CString(topic)
defer C.free(unsafe.Pointer(ctopic))
m := (*C.struct_mosquitto)(client.instance)
status := C.mosquitto_will_set(m, ctopic, C.int(len(payload)),
unsafe.Pointer(&payload[0]), C.int(qos), C.bool(retain))
return Errno(status)
}
// Publish a byte array message
func (client *MosquittoClient) Publish(messageId uint, topic string, payload []byte, qos int, retain bool) error {
m := (*C.struct_mosquitto)(client.instance)
cmsgId := C.int(messageId)
ctopic := C.CString(topic)
status := C.mosquitto_publish(m, &cmsgId, ctopic,
C.int(len(payload)), unsafe.Pointer(&payload[0]), C.int(qos), C.bool(retain))
return Errno(status)
}
func messageProcess(private *keys.PrivateKey, peerPublic *keys.PublicKey, message []byte, is_wrap bool) ([]byte, error) {
if nil == message {
return nil, errors.New("No message was provided")
}
var priv, pub unsafe.Pointer
var privLen, pubLen C.size_t
if nil != private {
priv = unsafe.Pointer(&private.Value[0])
privLen = C.size_t(len(private.Value))
}
if nil != peerPublic {
pub = unsafe.Pointer(&peerPublic.Value[0])
pubLen = C.size_t(len(peerPublic.Value))
}
var output_length C.size_t
if !bool(C.get_message_size(priv,
privLen,
pub,
pubLen,
unsafe.Pointer(&message[0]),
C.size_t(len(message)),
C.bool(is_wrap),
&output_length)) {
return nil, errors.New("Failed to get ouput size")
}
output := make([]byte, int(output_length), int(output_length))
if !bool(C.process(priv,
privLen,
pub,
pubLen,
unsafe.Pointer(&message[0]),
C.size_t(len(message)),
C.bool(is_wrap),
unsafe.Pointer(&output[0]),
output_length)) {
return nil, errors.New("Failed to wrap message")
}
return output, nil
}
func newRocksDBBatch(parent *RocksDB, writeOnly bool) *rocksDBBatch {
r := &rocksDBBatch{
parent: parent,
batch: C.DBNewBatch(parent.rdb, C.bool(writeOnly)),
writeOnly: writeOnly,
}
r.distinct.rocksDBBatch = r
return r
}
// WantCloseAllFds determines whether container wishes all file descriptors
// to be closed on startup.
func (c *Container) WantCloseAllFds(state bool) error {
c.mu.Lock()
defer c.mu.Unlock()
if !bool(C.go_lxc_want_close_all_fds(c.container, C.bool(state))) {
return ErrCloseAllFdsFailed
}
return nil
}
// Set dst, over the region of interest, to be a resampled version of the corresponding portion of src
// (mapping such that the "full" image window of each correspond to each other, regardless of resolution).
// Unlike Resize(), Resample does not take a filter; it just samples either with a bilinear
// interpolation (if interpolate is true, the default) or uses the single "closest" pixel (if interpolate is false).
// This makes it a lot faster than a proper Resize(), though obviously with lower quality (aliasing when downsizing,
// pixel replication when upsizing).
// Works on all pixel data types.
func Resample(dst, src *ImageBuf, interpolate bool, opts ...AlgoOpts) error {
opt := flatAlgoOpts(opts)
ok := C.resample(dst.ptr, src.ptr, C.bool(interpolate), opt.ROI.validOrAllPtr(), C.int(opt.Threads))
if !bool(ok) {
return dst.LastError()
}
return nil
}
// Enables colors to be displayed. Will return an error if terminal is not
// capable of displaying colors
func StartColor() error {
if C.has_colors() == C.bool(false) {
return errors.New("Terminal does not support colors")
}
if C.start_color() == C.ERR {
return errors.New("Failed to enable color mode")
}
return nil
}
// newRocksDBIterator returns a new iterator over the supplied RocksDB
// instance. If snapshotHandle is not nil, uses the indicated snapshot.
// The caller must call rocksDBIterator.Close() when finished with the
// iterator to free up resources.
func newRocksDBIterator(rdb *C.DBEngine, prefix bool) *rocksDBIterator {
// In order to prevent content displacement, caching is disabled
// when performing scans. Any options set within the shared read
// options field that should be carried over needs to be set here
// as well.
return &rocksDBIterator{
iter: C.DBNewIter(rdb, C.bool(prefix)),
}
}