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runtime: better panic for send to nil channel

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*Much* better on NaCl, where memory faults are deadly.

R=r
CC=golang-dev
https://golang.org/cl/2249041
This commit is contained in:
Russ Cox 2010-09-19 23:28:12 -04:00
parent e769342614
commit d4baf3ccb7
1 changed files with 6 additions and 0 deletions
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6
src/pkg/runtime/chan.c
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@ -403,6 +403,9 @@ void
int32 o;
byte *ae;
if(c == nil)
panicstring("send to nil channel");
o = rnd(sizeof(c), c->elemalign);
ae = (byte*)&c + o;
chansend(c, ae, nil);
@ -416,6 +419,9 @@ void
int32 o;
byte *ae, *ap;
if(c == nil)
panicstring("send to nil channel");
o = rnd(sizeof(c), c->elemalign);
ae = (byte*)&c + o;
o = rnd(o+c->elemsize, Structrnd);