diff options
author | Niall Sheridan <nsheridan@gmail.com> | 2017-02-12 22:24:33 +0000 |
---|---|---|
committer | Niall Sheridan <nsheridan@gmail.com> | 2017-02-12 22:24:33 +0000 |
commit | ba4840c52becf73c2749c9ef0f2f09ed0b9d5c7f (patch) | |
tree | 61b839884d66c9dd8269e26117aa4e4c995ad119 /vendor/golang.org/x/net | |
parent | 6e00d0000e54f21a4a393e67fd914bda4d394f4a (diff) |
Update dependencies
Diffstat (limited to 'vendor/golang.org/x/net')
-rw-r--r-- | vendor/golang.org/x/net/context/context.go | 30 | ||||
-rw-r--r-- | vendor/golang.org/x/net/context/go17.go | 4 | ||||
-rw-r--r-- | vendor/golang.org/x/net/context/pre_go17.go | 18 | ||||
-rw-r--r-- | vendor/golang.org/x/net/http2/client_conn_pool.go | 2 | ||||
-rw-r--r-- | vendor/golang.org/x/net/http2/frame.go | 26 | ||||
-rw-r--r-- | vendor/golang.org/x/net/http2/hpack/encode.go | 2 | ||||
-rw-r--r-- | vendor/golang.org/x/net/http2/hpack/hpack.go | 4 | ||||
-rw-r--r-- | vendor/golang.org/x/net/http2/pipe.go | 2 | ||||
-rw-r--r-- | vendor/golang.org/x/net/http2/server.go | 18 | ||||
-rw-r--r-- | vendor/golang.org/x/net/http2/transport.go | 8 | ||||
-rw-r--r-- | vendor/golang.org/x/net/internal/timeseries/timeseries.go | 2 | ||||
-rw-r--r-- | vendor/golang.org/x/net/trace/events.go | 20 | ||||
-rw-r--r-- | vendor/golang.org/x/net/trace/histogram.go | 15 | ||||
-rw-r--r-- | vendor/golang.org/x/net/trace/trace.go | 18 |
14 files changed, 107 insertions, 62 deletions
diff --git a/vendor/golang.org/x/net/context/context.go b/vendor/golang.org/x/net/context/context.go index 134654c..f143ed6 100644 --- a/vendor/golang.org/x/net/context/context.go +++ b/vendor/golang.org/x/net/context/context.go @@ -7,7 +7,7 @@ // and between processes. // // Incoming requests to a server should create a Context, and outgoing calls to -// servers should accept a Context. The chain of function calls between must +// servers should accept a Context. The chain of function calls between must // propagate the Context, optionally replacing it with a modified copy created // using WithDeadline, WithTimeout, WithCancel, or WithValue. // @@ -16,14 +16,14 @@ // propagation: // // Do not store Contexts inside a struct type; instead, pass a Context -// explicitly to each function that needs it. The Context should be the first +// explicitly to each function that needs it. The Context should be the first // parameter, typically named ctx: // // func DoSomething(ctx context.Context, arg Arg) error { // // ... use ctx ... // } // -// Do not pass a nil Context, even if a function permits it. Pass context.TODO +// Do not pass a nil Context, even if a function permits it. Pass context.TODO // if you are unsure about which Context to use. // // Use context Values only for request-scoped data that transits processes and @@ -44,13 +44,13 @@ import "time" // Context's methods may be called by multiple goroutines simultaneously. type Context interface { // Deadline returns the time when work done on behalf of this context - // should be canceled. Deadline returns ok==false when no deadline is - // set. Successive calls to Deadline return the same results. + // should be canceled. Deadline returns ok==false when no deadline is + // set. Successive calls to Deadline return the same results. Deadline() (deadline time.Time, ok bool) // Done returns a channel that's closed when work done on behalf of this - // context should be canceled. Done may return nil if this context can - // never be canceled. Successive calls to Done return the same value. + // context should be canceled. Done may return nil if this context can + // never be canceled. Successive calls to Done return the same value. // // WithCancel arranges for Done to be closed when cancel is called; // WithDeadline arranges for Done to be closed when the deadline @@ -79,24 +79,24 @@ type Context interface { // a Done channel for cancelation. Done() <-chan struct{} - // Err returns a non-nil error value after Done is closed. Err returns + // Err returns a non-nil error value after Done is closed. Err returns // Canceled if the context was canceled or DeadlineExceeded if the - // context's deadline passed. No other values for Err are defined. + // context's deadline passed. No other values for Err are defined. // After Done is closed, successive calls to Err return the same value. Err() error // Value returns the value associated with this context for key, or nil - // if no value is associated with key. Successive calls to Value with + // if no value is associated with key. Successive calls to Value with // the same key returns the same result. // // Use context values only for request-scoped data that transits // processes and API boundaries, not for passing optional parameters to // functions. // - // A key identifies a specific value in a Context. Functions that wish + // A key identifies a specific value in a Context. Functions that wish // to store values in Context typically allocate a key in a global // variable then use that key as the argument to context.WithValue and - // Context.Value. A key can be any type that supports equality; + // Context.Value. A key can be any type that supports equality; // packages should define keys as an unexported type to avoid // collisions. // @@ -115,7 +115,7 @@ type Context interface { // // This prevents collisions with keys defined in other packages. // type key int // - // // userKey is the key for user.User values in Contexts. It is + // // userKey is the key for user.User values in Contexts. It is // // unexported; clients use user.NewContext and user.FromContext // // instead of using this key directly. // var userKey key = 0 @@ -134,14 +134,14 @@ type Context interface { } // Background returns a non-nil, empty Context. It is never canceled, has no -// values, and has no deadline. It is typically used by the main function, +// values, and has no deadline. It is typically used by the main function, // initialization, and tests, and as the top-level Context for incoming // requests. func Background() Context { return background } -// TODO returns a non-nil, empty Context. Code should use context.TODO when +// TODO returns a non-nil, empty Context. Code should use context.TODO when // it's unclear which Context to use or it is not yet available (because the // surrounding function has not yet been extended to accept a Context // parameter). TODO is recognized by static analysis tools that determine diff --git a/vendor/golang.org/x/net/context/go17.go b/vendor/golang.org/x/net/context/go17.go index f8cda19..d20f52b 100644 --- a/vendor/golang.org/x/net/context/go17.go +++ b/vendor/golang.org/x/net/context/go17.go @@ -35,8 +35,8 @@ func WithCancel(parent Context) (ctx Context, cancel CancelFunc) { } // WithDeadline returns a copy of the parent context with the deadline adjusted -// to be no later than d. If the parent's deadline is already earlier than d, -// WithDeadline(parent, d) is semantically equivalent to parent. The returned +// to be no later than d. If the parent's deadline is already earlier than d, +// WithDeadline(parent, d) is semantically equivalent to parent. The returned // context's Done channel is closed when the deadline expires, when the returned // cancel function is called, or when the parent context's Done channel is // closed, whichever happens first. diff --git a/vendor/golang.org/x/net/context/pre_go17.go b/vendor/golang.org/x/net/context/pre_go17.go index 5a30aca..0f35592 100644 --- a/vendor/golang.org/x/net/context/pre_go17.go +++ b/vendor/golang.org/x/net/context/pre_go17.go @@ -13,7 +13,7 @@ import ( "time" ) -// An emptyCtx is never canceled, has no values, and has no deadline. It is not +// An emptyCtx is never canceled, has no values, and has no deadline. It is not // struct{}, since vars of this type must have distinct addresses. type emptyCtx int @@ -104,7 +104,7 @@ func propagateCancel(parent Context, child canceler) { } // parentCancelCtx follows a chain of parent references until it finds a -// *cancelCtx. This function understands how each of the concrete types in this +// *cancelCtx. This function understands how each of the concrete types in this // package represents its parent. func parentCancelCtx(parent Context) (*cancelCtx, bool) { for { @@ -134,14 +134,14 @@ func removeChild(parent Context, child canceler) { p.mu.Unlock() } -// A canceler is a context type that can be canceled directly. The +// A canceler is a context type that can be canceled directly. The // implementations are *cancelCtx and *timerCtx. type canceler interface { cancel(removeFromParent bool, err error) Done() <-chan struct{} } -// A cancelCtx can be canceled. When canceled, it also cancels any children +// A cancelCtx can be canceled. When canceled, it also cancels any children // that implement canceler. type cancelCtx struct { Context @@ -193,8 +193,8 @@ func (c *cancelCtx) cancel(removeFromParent bool, err error) { } // WithDeadline returns a copy of the parent context with the deadline adjusted -// to be no later than d. If the parent's deadline is already earlier than d, -// WithDeadline(parent, d) is semantically equivalent to parent. The returned +// to be no later than d. If the parent's deadline is already earlier than d, +// WithDeadline(parent, d) is semantically equivalent to parent. The returned // context's Done channel is closed when the deadline expires, when the returned // cancel function is called, or when the parent context's Done channel is // closed, whichever happens first. @@ -226,8 +226,8 @@ func WithDeadline(parent Context, deadline time.Time) (Context, CancelFunc) { return c, func() { c.cancel(true, Canceled) } } -// A timerCtx carries a timer and a deadline. It embeds a cancelCtx to -// implement Done and Err. It implements cancel by stopping its timer then +// A timerCtx carries a timer and a deadline. It embeds a cancelCtx to +// implement Done and Err. It implements cancel by stopping its timer then // delegating to cancelCtx.cancel. type timerCtx struct { *cancelCtx @@ -281,7 +281,7 @@ func WithValue(parent Context, key interface{}, val interface{}) Context { return &valueCtx{parent, key, val} } -// A valueCtx carries a key-value pair. It implements Value for that key and +// A valueCtx carries a key-value pair. It implements Value for that key and // delegates all other calls to the embedded Context. type valueCtx struct { Context diff --git a/vendor/golang.org/x/net/http2/client_conn_pool.go b/vendor/golang.org/x/net/http2/client_conn_pool.go index b139412..bdf5652 100644 --- a/vendor/golang.org/x/net/http2/client_conn_pool.go +++ b/vendor/golang.org/x/net/http2/client_conn_pool.go @@ -247,7 +247,7 @@ func filterOutClientConn(in []*ClientConn, exclude *ClientConn) []*ClientConn { } // noDialClientConnPool is an implementation of http2.ClientConnPool -// which never dials. We let the HTTP/1.1 client dial and use its TLS +// which never dials. We let the HTTP/1.1 client dial and use its TLS // connection instead. type noDialClientConnPool struct{ *clientConnPool } diff --git a/vendor/golang.org/x/net/http2/frame.go b/vendor/golang.org/x/net/http2/frame.go index 358833f..9573588 100644 --- a/vendor/golang.org/x/net/http2/frame.go +++ b/vendor/golang.org/x/net/http2/frame.go @@ -312,7 +312,7 @@ type Framer struct { MaxHeaderListSize uint32 // TODO: track which type of frame & with which flags was sent - // last. Then return an error (unless AllowIllegalWrites) if + // last. Then return an error (unless AllowIllegalWrites) if // we're in the middle of a header block and a // non-Continuation or Continuation on a different stream is // attempted to be written. @@ -600,6 +600,7 @@ var ( errStreamID = errors.New("invalid stream ID") errDepStreamID = errors.New("invalid dependent stream ID") errPadLength = errors.New("pad length too large") + errPadBytes = errors.New("padding bytes must all be zeros unless AllowIllegalWrites is enabled") ) func validStreamIDOrZero(streamID uint32) bool { @@ -623,6 +624,7 @@ func (f *Framer) WriteData(streamID uint32, endStream bool, data []byte) error { // // If pad is nil, the padding bit is not sent. // The length of pad must not exceed 255 bytes. +// The bytes of pad must all be zero, unless f.AllowIllegalWrites is set. // // It will perform exactly one Write to the underlying Writer. // It is the caller's responsibility not to violate the maximum frame size @@ -631,8 +633,18 @@ func (f *Framer) WriteDataPadded(streamID uint32, endStream bool, data, pad []by if !validStreamID(streamID) && !f.AllowIllegalWrites { return errStreamID } - if len(pad) > 255 { - return errPadLength + if len(pad) > 0 { + if len(pad) > 255 { + return errPadLength + } + if !f.AllowIllegalWrites { + for _, b := range pad { + if b != 0 { + // "Padding octets MUST be set to zero when sending." + return errPadBytes + } + } + } } var flags Flags if endStream { @@ -663,7 +675,7 @@ type SettingsFrame struct { func parseSettingsFrame(fh FrameHeader, p []byte) (Frame, error) { if fh.Flags.Has(FlagSettingsAck) && fh.Length > 0 { // When this (ACK 0x1) bit is set, the payload of the - // SETTINGS frame MUST be empty. Receipt of a + // SETTINGS frame MUST be empty. Receipt of a // SETTINGS frame with the ACK flag set and a length // field value other than 0 MUST be treated as a // connection error (Section 5.4.1) of type @@ -672,7 +684,7 @@ func parseSettingsFrame(fh FrameHeader, p []byte) (Frame, error) { } if fh.StreamID != 0 { // SETTINGS frames always apply to a connection, - // never a single stream. The stream identifier for a + // never a single stream. The stream identifier for a // SETTINGS frame MUST be zero (0x0). If an endpoint // receives a SETTINGS frame whose stream identifier // field is anything other than 0x0, the endpoint MUST @@ -923,7 +935,7 @@ func parseHeadersFrame(fh FrameHeader, p []byte) (_ Frame, err error) { FrameHeader: fh, } if fh.StreamID == 0 { - // HEADERS frames MUST be associated with a stream. If a HEADERS frame + // HEADERS frames MUST be associated with a stream. If a HEADERS frame // is received whose stream identifier field is 0x0, the recipient MUST // respond with a connection error (Section 5.4.1) of type // PROTOCOL_ERROR. @@ -1045,7 +1057,7 @@ type PriorityParam struct { Exclusive bool // Weight is the stream's zero-indexed weight. It should be - // set together with StreamDep, or neither should be set. Per + // set together with StreamDep, or neither should be set. Per // the spec, "Add one to the value to obtain a weight between // 1 and 256." Weight uint8 diff --git a/vendor/golang.org/x/net/http2/hpack/encode.go b/vendor/golang.org/x/net/http2/hpack/encode.go index f9bb033..6b3b9f8 100644 --- a/vendor/golang.org/x/net/http2/hpack/encode.go +++ b/vendor/golang.org/x/net/http2/hpack/encode.go @@ -45,7 +45,7 @@ func NewEncoder(w io.Writer) *Encoder { // WriteField encodes f into a single Write to e's underlying Writer. // This function may also produce bytes for "Header Table Size Update" -// if necessary. If produced, it is done before encoding f. +// if necessary. If produced, it is done before encoding f. func (e *Encoder) WriteField(f HeaderField) error { e.buf = e.buf[:0] diff --git a/vendor/golang.org/x/net/http2/hpack/hpack.go b/vendor/golang.org/x/net/http2/hpack/hpack.go index 135b9f6..007bc7f 100644 --- a/vendor/golang.org/x/net/http2/hpack/hpack.go +++ b/vendor/golang.org/x/net/http2/hpack/hpack.go @@ -61,7 +61,7 @@ func (hf HeaderField) String() string { func (hf HeaderField) Size() uint32 { // http://http2.github.io/http2-spec/compression.html#rfc.section.4.1 // "The size of the dynamic table is the sum of the size of - // its entries. The size of an entry is the sum of its name's + // its entries. The size of an entry is the sum of its name's // length in octets (as defined in Section 5.2), its value's // length in octets (see Section 5.2), plus 32. The size of // an entry is calculated using the length of the name and @@ -307,7 +307,7 @@ func (d *Decoder) Write(p []byte) (n int, err error) { err = d.parseHeaderFieldRepr() if err == errNeedMore { // Extra paranoia, making sure saveBuf won't - // get too large. All the varint and string + // get too large. All the varint and string // reading code earlier should already catch // overlong things and return ErrStringLength, // but keep this as a last resort. diff --git a/vendor/golang.org/x/net/http2/pipe.go b/vendor/golang.org/x/net/http2/pipe.go index 53b7a1d..914aaf8 100644 --- a/vendor/golang.org/x/net/http2/pipe.go +++ b/vendor/golang.org/x/net/http2/pipe.go @@ -10,7 +10,7 @@ import ( "sync" ) -// pipe is a goroutine-safe io.Reader/io.Writer pair. It's like +// pipe is a goroutine-safe io.Reader/io.Writer pair. It's like // io.Pipe except there are no PipeReader/PipeWriter halves, and the // underlying buffer is an interface. (io.Pipe is always unbuffered) type pipe struct { diff --git a/vendor/golang.org/x/net/http2/server.go b/vendor/golang.org/x/net/http2/server.go index 0431ab0..3c641a8 100644 --- a/vendor/golang.org/x/net/http2/server.go +++ b/vendor/golang.org/x/net/http2/server.go @@ -278,6 +278,16 @@ func (s *Server) ServeConn(c net.Conn, opts *ServeConnOpts) { pushEnabled: true, } + // The net/http package sets the write deadline from the + // http.Server.WriteTimeout during the TLS handshake, but then + // passes the connection off to us with the deadline already + // set. Disarm it here so that it is not applied to additional + // streams opened on this connection. + // TODO: implement WriteTimeout fully. See Issue 18437. + if sc.hs.WriteTimeout != 0 { + sc.conn.SetWriteDeadline(time.Time{}) + } + if s.NewWriteScheduler != nil { sc.writeSched = s.NewWriteScheduler() } else { @@ -700,7 +710,7 @@ func (sc *serverConn) serve() { return } // Now that we've got the preface, get us out of the - // "StateNew" state. We can't go directly to idle, though. + // "StateNew" state. We can't go directly to idle, though. // Active means we read some data and anticipate a request. We'll // do another Active when we get a HEADERS frame. sc.setConnState(http.StateActive) @@ -2093,8 +2103,8 @@ func (b *requestBody) Read(p []byte) (n int, err error) { return } -// responseWriter is the http.ResponseWriter implementation. It's -// intentionally small (1 pointer wide) to minimize garbage. The +// responseWriter is the http.ResponseWriter implementation. It's +// intentionally small (1 pointer wide) to minimize garbage. The // responseWriterState pointer inside is zeroed at the end of a // request (in handlerDone) and calls on the responseWriter thereafter // simply crash (caller's mistake), but the much larger responseWriterState @@ -2268,7 +2278,7 @@ const TrailerPrefix = "Trailer:" // says you SHOULD (but not must) predeclare any trailers in the // header, the official ResponseWriter rules said trailers in Go must // be predeclared, and then we reuse the same ResponseWriter.Header() -// map to mean both Headers and Trailers. When it's time to write the +// map to mean both Headers and Trailers. When it's time to write the // Trailers, we pick out the fields of Headers that were declared as // trailers. That worked for a while, until we found the first major // user of Trailers in the wild: gRPC (using them only over http2), diff --git a/vendor/golang.org/x/net/http2/transport.go b/vendor/golang.org/x/net/http2/transport.go index 9f60c29..fef8396 100644 --- a/vendor/golang.org/x/net/http2/transport.go +++ b/vendor/golang.org/x/net/http2/transport.go @@ -575,7 +575,7 @@ func (cc *ClientConn) canTakeNewRequestLocked() bool { cc.nextStreamID < math.MaxInt32 } -// onIdleTimeout is called from a time.AfterFunc goroutine. It will +// onIdleTimeout is called from a time.AfterFunc goroutine. It will // only be called when we're idle, but because we're coming from a new // goroutine, there could be a new request coming in at the same time, // so this simply calls the synchronized closeIfIdle to shut down this @@ -658,8 +658,6 @@ func commaSeparatedTrailers(req *http.Request) (string, error) { } if len(keys) > 0 { sort.Strings(keys) - // TODO: could do better allocation-wise here, but trailers are rare, - // so being lazy for now. return strings.Join(keys, ","), nil } return "", nil @@ -811,8 +809,8 @@ func (cc *ClientConn) RoundTrip(req *http.Request) (*http.Response, error) { // 2xx, however, then assume the server DOES potentially // want our body (e.g. full-duplex streaming: // golang.org/issue/13444). If it turns out the server - // doesn't, they'll RST_STREAM us soon enough. This is a - // heuristic to avoid adding knobs to Transport. Hopefully + // doesn't, they'll RST_STREAM us soon enough. This is a + // heuristic to avoid adding knobs to Transport. Hopefully // we can keep it. bodyWriter.cancel() cs.abortRequestBodyWrite(errStopReqBodyWrite) diff --git a/vendor/golang.org/x/net/internal/timeseries/timeseries.go b/vendor/golang.org/x/net/internal/timeseries/timeseries.go index 1119f34..685f0e7 100644 --- a/vendor/golang.org/x/net/internal/timeseries/timeseries.go +++ b/vendor/golang.org/x/net/internal/timeseries/timeseries.go @@ -371,7 +371,7 @@ func (ts *timeSeries) ComputeRange(start, finish time.Time, num int) []Observabl } } - // Failed to find a level that covers the desired range. So just + // Failed to find a level that covers the desired range. So just // extract from the last level, even if it doesn't cover the entire // desired range. ts.extract(ts.levels[len(ts.levels)-1], start, finish, num, results) diff --git a/vendor/golang.org/x/net/trace/events.go b/vendor/golang.org/x/net/trace/events.go index e66c7e3..d8daec1 100644 --- a/vendor/golang.org/x/net/trace/events.go +++ b/vendor/golang.org/x/net/trace/events.go @@ -21,11 +21,6 @@ import ( "time" ) -var eventsTmpl = template.Must(template.New("events").Funcs(template.FuncMap{ - "elapsed": elapsed, - "trimSpace": strings.TrimSpace, -}).Parse(eventsHTML)) - const maxEventsPerLog = 100 type bucket struct { @@ -101,7 +96,7 @@ func RenderEvents(w http.ResponseWriter, req *http.Request, sensitive bool) { famMu.RLock() defer famMu.RUnlock() - if err := eventsTmpl.Execute(w, data); err != nil { + if err := eventsTmpl().Execute(w, data); err != nil { log.Printf("net/trace: Failed executing template: %v", err) } } @@ -421,6 +416,19 @@ func freeEventLog(el *eventLog) { } } +var eventsTmplCache *template.Template +var eventsTmplOnce sync.Once + +func eventsTmpl() *template.Template { + eventsTmplOnce.Do(func() { + eventsTmplCache = template.Must(template.New("events").Funcs(template.FuncMap{ + "elapsed": elapsed, + "trimSpace": strings.TrimSpace, + }).Parse(eventsHTML)) + }) + return eventsTmplCache +} + const eventsHTML = ` <html> <head> diff --git a/vendor/golang.org/x/net/trace/histogram.go b/vendor/golang.org/x/net/trace/histogram.go index bb42aa5..9bf4286 100644 --- a/vendor/golang.org/x/net/trace/histogram.go +++ b/vendor/golang.org/x/net/trace/histogram.go @@ -12,6 +12,7 @@ import ( "html/template" "log" "math" + "sync" "golang.org/x/net/internal/timeseries" ) @@ -320,15 +321,20 @@ func (h *histogram) newData() *data { func (h *histogram) html() template.HTML { buf := new(bytes.Buffer) - if err := distTmpl.Execute(buf, h.newData()); err != nil { + if err := distTmpl().Execute(buf, h.newData()); err != nil { buf.Reset() log.Printf("net/trace: couldn't execute template: %v", err) } return template.HTML(buf.String()) } -// Input: data -var distTmpl = template.Must(template.New("distTmpl").Parse(` +var distTmplCache *template.Template +var distTmplOnce sync.Once + +func distTmpl() *template.Template { + distTmplOnce.Do(func() { + // Input: data + distTmplCache = template.Must(template.New("distTmpl").Parse(` <table> <tr> <td style="padding:0.25em">Count: {{.Count}}</td> @@ -354,3 +360,6 @@ var distTmpl = template.Must(template.New("distTmpl").Parse(` {{end}} </table> `)) + }) + return distTmplCache +} diff --git a/vendor/golang.org/x/net/trace/trace.go b/vendor/golang.org/x/net/trace/trace.go index ecd766e..64f56a3 100644 --- a/vendor/golang.org/x/net/trace/trace.go +++ b/vendor/golang.org/x/net/trace/trace.go @@ -238,7 +238,7 @@ func Render(w io.Writer, req *http.Request, sensitive bool) { completedMu.RLock() defer completedMu.RUnlock() - if err := pageTmpl.ExecuteTemplate(w, "Page", data); err != nil { + if err := pageTmpl().ExecuteTemplate(w, "Page", data); err != nil { log.Printf("net/trace: Failed executing template: %v", err) } } @@ -902,10 +902,18 @@ func elapsed(d time.Duration) string { return string(b) } -var pageTmpl = template.Must(template.New("Page").Funcs(template.FuncMap{ - "elapsed": elapsed, - "add": func(a, b int) int { return a + b }, -}).Parse(pageHTML)) +var pageTmplCache *template.Template +var pageTmplOnce sync.Once + +func pageTmpl() *template.Template { + pageTmplOnce.Do(func() { + pageTmplCache = template.Must(template.New("Page").Funcs(template.FuncMap{ + "elapsed": elapsed, + "add": func(a, b int) int { return a + b }, + }).Parse(pageHTML)) + }) + return pageTmplCache +} const pageHTML = ` {{template "Prolog" .}} |