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several bugfixes, add internal.IntLen, round up http-linux example with new router API

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This commit is contained in:
Patricio Whittingslow
2026-07-25 22:09:49 -03:00
parent d4666630f7
commit a7f598f975
8 changed files with 233 additions and 136 deletions
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http/httpraw/parse.go
+3 -20
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@@ -341,7 +341,7 @@ func (h *Header) appendHeader(key, value string) {
// appendHeaderInt is appendHeader's integer counterpart: it appends key and the
// formatted integer value as a new header field.
func (h *Header) appendHeaderInt(key string, value int64, base int) {
n := intLen(value, base)
n := internal.IntLen(value, base)
if !h.reserve(len(key) + n) {
return // Drop and flag OOM; never panic.
}
@@ -382,7 +382,7 @@ func (h *Header) reserve(need int) bool {
// reuseOrAppendInt writes value into tok's slot in place when it fits, avoiding
// any buffer growth; otherwise it appends a fresh slot.
func (h *Header) reuseOrAppendInt(tok headerSlice, value int64, base int) headerSlice {
n := intLen(value, base)
n := internal.IntLen(value, base)
if int(tok.len) >= n {
// Reuse: format directly over the existing slot. No free space needed
// since n <= tok.len and the slot already lives inside buf.
@@ -404,7 +404,7 @@ func (h *Header) appendInt(value int64, base, n int) headerSlice {
}
// mustAppendInt formats value into the buffer's free region and commits it.
// The caller must have reserved at least intLen(value, base) free bytes.
// The caller must have reserved at least internal.IntLen(value, base) free bytes.
func (hb *headerBuf) mustAppendInt(value int64, base int) headerSlice {
L := len(hb.buf)
if L == 0 {
@@ -415,23 +415,6 @@ func (hb *headerBuf) mustAppendInt(value int64, base int) headerSlice {
return hb.slice(hb.buf[L : L+len(v)])
}
// intLen returns the number of bytes strconv.AppendInt would emit for value in
// the given base (including a leading minus sign for negatives). Used to size
// the buffer and to test whether a value fits an existing slot without writing.
func intLen(value int64, base int) int {
n := 1
u := uint64(value)
if value < 0 {
n++ // Leading minus sign.
u = -u // Two's-complement magnitude; correct even for math.MinInt64.
}
for u >= uint64(base) {
u /= uint64(base)
n++
}
return n
}
func (hb *headerBuf) noKV() argsKV { return argsKV{} }
func (hb *headerBuf) next(ss *scannerState) argsKV {