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internal/pprof: remove unused code 

Change-Id: I47e98122668960321124e426b345d36f6916b738
GitHub-Last-Rev: b72c9ab33e
GitHub-Pull-Request: golang/go#65594
Reviewed-on: https://go-review.googlesource.com/c/go/+/562324
Reviewed-by: Michael Pratt <mpratt@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Michael Pratt <mpratt@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
This commit is contained in:
qiulaidongfeng 2024-02-08 05:39:07 +00:00 committed by Gopher Robot
parent 4aaa550ff5
commit 151362cf7c
2 changed files with 0 additions and 105 deletions
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104
src/internal/profile/filter.go
View File

@ -6,110 +6,6 @@
package profile
import "regexp"
// FilterSamplesByName filters the samples in a profile and only keeps
// samples where at least one frame matches focus but none match ignore.
// Returns true is the corresponding regexp matched at least one sample.
func (p *Profile) FilterSamplesByName(focus, ignore, hide *regexp.Regexp) (fm, im, hm bool) {
focusOrIgnore := make(map[uint64]bool)
hidden := make(map[uint64]bool)
for _, l := range p.Location {
if ignore != nil && l.matchesName(ignore) {
im = true
focusOrIgnore[l.ID] = false
} else if focus == nil || l.matchesName(focus) {
fm = true
focusOrIgnore[l.ID] = true
}
if hide != nil && l.matchesName(hide) {
hm = true
l.Line = l.unmatchedLines(hide)
if len(l.Line) == 0 {
hidden[l.ID] = true
}
}
}
s := make([]*Sample, 0, len(p.Sample))
for _, sample := range p.Sample {
if focusedAndNotIgnored(sample.Location, focusOrIgnore) {
if len(hidden) > 0 {
var locs []*Location
for _, loc := range sample.Location {
if !hidden[loc.ID] {
locs = append(locs, loc)
}
}
if len(locs) == 0 {
// Remove sample with no locations (by not adding it to s).
continue
}
sample.Location = locs
}
s = append(s, sample)
}
}
p.Sample = s
return
}
// matchesName reports whether the function name or file in the
// location matches the regular expression.
func (loc *Location) matchesName(re *regexp.Regexp) bool {
for _, ln := range loc.Line {
if fn := ln.Function; fn != nil {
if re.MatchString(fn.Name) {
return true
}
if re.MatchString(fn.Filename) {
return true
}
}
}
return false
}
// unmatchedLines returns the lines in the location that do not match
// the regular expression.
func (loc *Location) unmatchedLines(re *regexp.Regexp) []Line {
var lines []Line
for _, ln := range loc.Line {
if fn := ln.Function; fn != nil {
if re.MatchString(fn.Name) {
continue
}
if re.MatchString(fn.Filename) {
continue
}
}
lines = append(lines, ln)
}
return lines
}
// focusedAndNotIgnored looks up a slice of ids against a map of
// focused/ignored locations. The map only contains locations that are
// explicitly focused or ignored. Returns whether there is at least
// one focused location but no ignored locations.
func focusedAndNotIgnored(locs []*Location, m map[uint64]bool) bool {
var f bool
for _, loc := range locs {
if focus, focusOrIgnore := m[loc.ID]; focusOrIgnore {
if focus {
// Found focused location. Must keep searching in case there
// is an ignored one as well.
f = true
} else {
// Found ignored location. Can return false right away.
return false
}
}
}
return f
}
// TagMatch selects tags for filtering
type TagMatch func(key, val string, nval int64) bool

1
src/internal/profile/profile.go
View File

@ -150,7 +150,6 @@ func Parse(r io.Reader) (*Profile, error) {
return p, nil
}
var errUnrecognized = fmt.Errorf("unrecognized profile format")
var errMalformed = fmt.Errorf("malformed profile format")
var ErrNoData = fmt.Errorf("empty input file")