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chan bool offset bug

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SVN=127537
This commit is contained in:
Ken Thompson 2008-07-16 11:46:33 -07:00
parent ac048ce7f4
commit 90da10d7ac
1 changed files with 8 additions and 5 deletions
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13
src/runtime/chan.c
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@ -15,7 +15,8 @@ struct Hchan
uint32 dataqsiz; // size of the circular q
uint32 qcount; // total data in the q
uint32 eo; // vararg of element
uint32 po; // vararg of present bool
uint32 po1; // vararg of present bool in next structure
uint32 po2; // vararg of present bool in same structure
Alg* elemalg; // interface for element type
Link* senddataq; // pointer for sender
Link* recvdataq; // pointer for receiver
@ -74,7 +75,8 @@ sys·newchan(uint32 elemsize, uint32 elemalg, uint32 hint,
// these calculations are compiler dependent
c->eo = rnd(sizeof(c), elemsize);
c->po = rnd(c->eo+elemsize, 1);
c->po1 = rnd(c->eo+elemsize, 8); // next structure
c->po2 = rnd(c->eo+elemsize, 1); // same structure
ret = c;
FLUSH(&ret);
@ -90,7 +92,6 @@ sys·newchan(uint32 elemsize, uint32 elemalg, uint32 hint,
sys·printint(c->dataqsiz);
prints("\n");
}
}
// chansend1(hchan *chan any, elem any);
@ -145,7 +146,8 @@ sys·chansend2(Hchan* c, ...)
G *gr;
ae = (byte*)&c + c->eo;
ap = (byte*)&c + c->po;
ap = (byte*)&c + c->po1;
if(debug) {
prints("chansend: chan=");
sys·printpointer(c);
@ -230,7 +232,8 @@ sys·chanrecv2(Hchan* c, ...)
G *gs;
ae = (byte*)&c + c->eo;
ap = (byte*)&c + c->po;
ap = (byte*)&c + c->po2;
if(debug) {
prints("chanrecv2: chan=");
sys·printpointer(c);