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runtime: use debugSelect flag to toggle debug code

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This block of code once was commented by the original author, but commenting
code looks a little annoying. However, the debugSelect flag is just for the
situation that debug code will be compiled when debuging, when release this
code will be eliminated by the compiler.

Change-Id: I7b94297e368b515116ef44a36058214ddddf9adb
Reviewed-on: https://go-review.googlesource.com/113395
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Zhou Peng 2018-05-16 12:56:54 +00:00 committed by Brad Fitzpatrick
parent a0b7051772
commit dbd66fd3d0
1 changed files with 3 additions and 2 deletions
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5
src/runtime/select.go
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@ -191,14 +191,15 @@ func selectgo(cas0 *scase, order0 *uint16, ncases int) (int, bool) {
}
lockorder[j] = o
}
/*
if debugSelect {
for i := 0; i+1 < ncases; i++ {
if scases[lockorder[i]].c.sortkey() > scases[lockorder[i+1]].c.sortkey() {
print("i=", i, " x=", lockorder[i], " y=", lockorder[i+1], "\n")
throw("select: broken sort")
}
}
*/
}
// lock all the channels involved in the select
sellock(scases, lockorder)