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authorIan Lance Taylor <ian@gcc.gnu.org>2014-07-19 08:53:52 +0000
committerIan Lance Taylor <ian@gcc.gnu.org>2014-07-19 08:53:52 +0000
commit00d86ac99f5dd6afa5bbd7c38ffe1c585edd2387 (patch)
treeb988e32ea14a3dc1b4718b1fdfa47bab087ae96c /libgo/runtime/chan.c
parentbcf2fc6ee0a7edbe7de4299f28b66527c07bb0a2 (diff)
downloadgcc-00d86ac99f5dd6afa5bbd7c38ffe1c585edd2387.tar.gz
libgo: Update to Go 1.3 release.
From-SVN: r212837
Diffstat (limited to 'libgo/runtime/chan.c')
-rw-r--r--libgo/runtime/chan.c1186
1 files changed, 1186 insertions, 0 deletions
diff --git a/libgo/runtime/chan.c b/libgo/runtime/chan.c
new file mode 100644
index 00000000000..4559c0f2d0d
--- /dev/null
+++ b/libgo/runtime/chan.c
@@ -0,0 +1,1186 @@
+// AUTO-GENERATED by autogen.sh; DO NOT EDIT
+
+#include "runtime.h"
+#include "arch.h"
+#include "go-type.h"
+#include "race.h"
+#include "malloc.h"
+#include "chan.h"
+
+#line 13 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+uint32 runtime_Hchansize = sizeof ( Hchan ) ;
+#line 15 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+static void dequeueg ( WaitQ* ) ;
+static SudoG* dequeue ( WaitQ* ) ;
+static void enqueue ( WaitQ* , SudoG* ) ;
+static void racesync ( Hchan* , SudoG* ) ;
+#line 20 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+static Hchan*
+makechan ( ChanType *t , int64 hint )
+{
+Hchan *c;
+uintptr n;
+const Type *elem;
+#line 27 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+elem = t->__element_type;
+#line 30 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( elem->__size >= ( 1<<16 ) )
+runtime_throw ( "makechan: invalid channel element type" ) ;
+#line 33 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( hint < 0 || ( intgo ) hint != hint || ( elem->__size > 0 && ( uintptr ) hint > ( MaxMem - sizeof ( *c ) ) / elem->__size ) )
+runtime_panicstring ( "makechan: size out of range" ) ;
+#line 36 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+n = sizeof ( *c ) ;
+n = ROUND ( n , elem->__align ) ;
+#line 40 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+c = ( Hchan* ) runtime_mallocgc ( sizeof ( *c ) + hint*elem->__size , ( uintptr ) t | TypeInfo_Chan , 0 ) ;
+c->elemsize = elem->__size;
+c->elemtype = elem;
+c->dataqsiz = hint;
+#line 45 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( debug )
+runtime_printf ( "makechan: chan=%p; elemsize=%D; dataqsiz=%D\n" ,
+c , ( int64 ) elem->__size , ( int64 ) c->dataqsiz ) ;
+#line 49 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+return c;
+}
+Hchan* reflect_makechan(ChanType* t, uint64 size) __asm__ (GOSYM_PREFIX "reflect.makechan");
+Hchan* reflect_makechan(ChanType* t, uint64 size)
+{
+ Hchan* c;
+#line 52 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+
+ c = makechan(t, size);
+return c;
+}
+
+#line 56 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+Hchan*
+__go_new_channel ( ChanType *t , uintptr hint )
+{
+return makechan ( t , hint ) ;
+}
+#line 62 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+Hchan*
+__go_new_channel_big ( ChanType *t , uint64 hint )
+{
+return makechan ( t , hint ) ;
+}
+#line 82 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+static bool
+chansend ( ChanType *t , Hchan *c , byte *ep , bool block , void *pc )
+{
+SudoG *sg;
+SudoG mysg;
+G* gp;
+int64 t0;
+G* g;
+#line 91 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+g = runtime_g ( ) ;
+#line 93 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( raceenabled )
+runtime_racereadobjectpc ( ep , t->__element_type , runtime_getcallerpc ( &t ) , chansend ) ;
+#line 96 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( c == nil ) {
+USED ( t ) ;
+if ( !block )
+return false;
+runtime_park ( nil , nil , "chan send (nil chan)" ) ;
+return false;
+}
+#line 104 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( runtime_gcwaiting ( ) )
+runtime_gosched ( ) ;
+#line 107 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( debug ) {
+runtime_printf ( "chansend: chan=%p\n" , c ) ;
+}
+#line 111 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+t0 = 0;
+mysg.releasetime = 0;
+if ( runtime_blockprofilerate > 0 ) {
+t0 = runtime_cputicks ( ) ;
+mysg.releasetime = -1;
+}
+#line 118 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+runtime_lock ( c ) ;
+if ( raceenabled )
+runtime_racereadpc ( c , pc , chansend ) ;
+if ( c->closed )
+goto closed;
+#line 124 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( c->dataqsiz > 0 )
+goto asynch;
+#line 127 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+sg = dequeue ( &c->recvq ) ;
+if ( sg != nil ) {
+if ( raceenabled )
+racesync ( c , sg ) ;
+runtime_unlock ( c ) ;
+#line 133 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+gp = sg->g;
+gp->param = sg;
+if ( sg->elem != nil )
+runtime_memmove ( sg->elem , ep , c->elemsize ) ;
+if ( sg->releasetime )
+sg->releasetime = runtime_cputicks ( ) ;
+runtime_ready ( gp ) ;
+return true;
+}
+#line 143 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( !block ) {
+runtime_unlock ( c ) ;
+return false;
+}
+#line 148 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+mysg.elem = ep;
+mysg.g = g;
+mysg.selectdone = nil;
+g->param = nil;
+enqueue ( &c->sendq , &mysg ) ;
+runtime_parkunlock ( c , "chan send" ) ;
+#line 155 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( g->param == nil ) {
+runtime_lock ( c ) ;
+if ( !c->closed )
+runtime_throw ( "chansend: spurious wakeup" ) ;
+goto closed;
+}
+#line 162 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( mysg.releasetime > 0 )
+runtime_blockevent ( mysg.releasetime - t0 , 2 ) ;
+#line 165 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+return true;
+#line 167 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+asynch:
+if ( c->closed )
+goto closed;
+#line 171 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( c->qcount >= c->dataqsiz ) {
+if ( !block ) {
+runtime_unlock ( c ) ;
+return false;
+}
+mysg.g = g;
+mysg.elem = nil;
+mysg.selectdone = nil;
+enqueue ( &c->sendq , &mysg ) ;
+runtime_parkunlock ( c , "chan send" ) ;
+#line 182 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+runtime_lock ( c ) ;
+goto asynch;
+}
+#line 186 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( raceenabled )
+runtime_racerelease ( chanbuf ( c , c->sendx ) ) ;
+#line 189 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+runtime_memmove ( chanbuf ( c , c->sendx ) , ep , c->elemsize ) ;
+if ( ++c->sendx == c->dataqsiz )
+c->sendx = 0;
+c->qcount++;
+#line 194 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+sg = dequeue ( &c->recvq ) ;
+if ( sg != nil ) {
+gp = sg->g;
+runtime_unlock ( c ) ;
+if ( sg->releasetime )
+sg->releasetime = runtime_cputicks ( ) ;
+runtime_ready ( gp ) ;
+} else
+runtime_unlock ( c ) ;
+if ( mysg.releasetime > 0 )
+runtime_blockevent ( mysg.releasetime - t0 , 2 ) ;
+return true;
+#line 207 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+closed:
+runtime_unlock ( c ) ;
+runtime_panicstring ( "send on closed channel" ) ;
+return false;
+}
+#line 214 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+static bool
+chanrecv ( ChanType *t , Hchan* c , byte *ep , bool block , bool *received )
+{
+SudoG *sg;
+SudoG mysg;
+G *gp;
+int64 t0;
+G *g;
+#line 223 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( runtime_gcwaiting ( ) )
+runtime_gosched ( ) ;
+#line 228 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( debug )
+runtime_printf ( "chanrecv: chan=%p\n" , c ) ;
+#line 231 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+g = runtime_g ( ) ;
+#line 233 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( c == nil ) {
+USED ( t ) ;
+if ( !block )
+return false;
+runtime_park ( nil , nil , "chan receive (nil chan)" ) ;
+return false;
+}
+#line 241 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+t0 = 0;
+mysg.releasetime = 0;
+if ( runtime_blockprofilerate > 0 ) {
+t0 = runtime_cputicks ( ) ;
+mysg.releasetime = -1;
+}
+#line 248 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+runtime_lock ( c ) ;
+if ( c->dataqsiz > 0 )
+goto asynch;
+#line 252 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( c->closed )
+goto closed;
+#line 255 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+sg = dequeue ( &c->sendq ) ;
+if ( sg != nil ) {
+if ( raceenabled )
+racesync ( c , sg ) ;
+runtime_unlock ( c ) ;
+#line 261 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( ep != nil )
+runtime_memmove ( ep , sg->elem , c->elemsize ) ;
+gp = sg->g;
+gp->param = sg;
+if ( sg->releasetime )
+sg->releasetime = runtime_cputicks ( ) ;
+runtime_ready ( gp ) ;
+#line 269 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( received != nil )
+*received = true;
+return true;
+}
+#line 274 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( !block ) {
+runtime_unlock ( c ) ;
+return false;
+}
+#line 279 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+mysg.elem = ep;
+mysg.g = g;
+mysg.selectdone = nil;
+g->param = nil;
+enqueue ( &c->recvq , &mysg ) ;
+runtime_parkunlock ( c , "chan receive" ) ;
+#line 286 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( g->param == nil ) {
+runtime_lock ( c ) ;
+if ( !c->closed )
+runtime_throw ( "chanrecv: spurious wakeup" ) ;
+goto closed;
+}
+#line 293 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( received != nil )
+*received = true;
+if ( mysg.releasetime > 0 )
+runtime_blockevent ( mysg.releasetime - t0 , 2 ) ;
+return true;
+#line 299 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+asynch:
+if ( c->qcount <= 0 ) {
+if ( c->closed )
+goto closed;
+#line 304 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( !block ) {
+runtime_unlock ( c ) ;
+if ( received != nil )
+*received = false;
+return false;
+}
+mysg.g = g;
+mysg.elem = nil;
+mysg.selectdone = nil;
+enqueue ( &c->recvq , &mysg ) ;
+runtime_parkunlock ( c , "chan receive" ) ;
+#line 316 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+runtime_lock ( c ) ;
+goto asynch;
+}
+#line 320 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( raceenabled )
+runtime_raceacquire ( chanbuf ( c , c->recvx ) ) ;
+#line 323 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( ep != nil )
+runtime_memmove ( ep , chanbuf ( c , c->recvx ) , c->elemsize ) ;
+runtime_memclr ( chanbuf ( c , c->recvx ) , c->elemsize ) ;
+if ( ++c->recvx == c->dataqsiz )
+c->recvx = 0;
+c->qcount--;
+#line 330 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+sg = dequeue ( &c->sendq ) ;
+if ( sg != nil ) {
+gp = sg->g;
+runtime_unlock ( c ) ;
+if ( sg->releasetime )
+sg->releasetime = runtime_cputicks ( ) ;
+runtime_ready ( gp ) ;
+} else
+runtime_unlock ( c ) ;
+#line 340 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( received != nil )
+*received = true;
+if ( mysg.releasetime > 0 )
+runtime_blockevent ( mysg.releasetime - t0 , 2 ) ;
+return true;
+#line 346 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+closed:
+if ( ep != nil )
+runtime_memclr ( ep , c->elemsize ) ;
+if ( received != nil )
+*received = false;
+if ( raceenabled )
+runtime_raceacquire ( c ) ;
+runtime_unlock ( c ) ;
+if ( mysg.releasetime > 0 )
+runtime_blockevent ( mysg.releasetime - t0 , 2 ) ;
+return true;
+}
+#line 361 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+void
+__go_send_small ( ChanType *t , Hchan* c , uint64 val )
+{
+union
+{
+byte b[sizeof ( uint64 ) ];
+uint64 v;
+} u;
+byte *v;
+#line 371 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+u.v = val;
+#ifndef WORDS_BIGENDIAN
+v = u.b;
+#else
+v = u.b + sizeof ( uint64 ) - t->__element_type->__size;
+#endif
+chansend ( t , c , v , true , runtime_getcallerpc ( &t ) ) ;
+}
+#line 382 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+void
+__go_send_big ( ChanType *t , Hchan* c , byte* v )
+{
+chansend ( t , c , v , true , runtime_getcallerpc ( &t ) ) ;
+}
+#line 390 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+void
+__go_receive ( ChanType *t , Hchan* c , byte* v )
+{
+chanrecv ( t , c , v , true , nil ) ;
+}
+#line 396 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+_Bool runtime_chanrecv2 ( ChanType *t , Hchan* c , byte* v )
+__asm__ ( GOSYM_PREFIX "runtime.chanrecv2" ) ;
+#line 399 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+_Bool
+runtime_chanrecv2 ( ChanType *t , Hchan* c , byte* v )
+{
+bool received = false;
+#line 404 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+chanrecv ( t , c , v , true , &received ) ;
+return received;
+}
+bool runtime_selectnbsend(ChanType* t, Hchan* c, byte* elem) __asm__ (GOSYM_PREFIX "runtime.selectnbsend");
+bool runtime_selectnbsend(ChanType* t, Hchan* c, byte* elem)
+{
+ bool selected;
+#line 425 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+
+ selected = chansend(t, c, elem, false, runtime_getcallerpc(&t));
+return selected;
+}
+bool runtime_selectnbrecv(ChanType* t, byte* elem, Hchan* c) __asm__ (GOSYM_PREFIX "runtime.selectnbrecv");
+bool runtime_selectnbrecv(ChanType* t, byte* elem, Hchan* c)
+{
+ bool selected;
+#line 446 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+
+ selected = chanrecv(t, c, elem, false, nil);
+return selected;
+}
+bool runtime_selectnbrecv2(ChanType* t, byte* elem, bool* received, Hchan* c) __asm__ (GOSYM_PREFIX "runtime.selectnbrecv2");
+bool runtime_selectnbrecv2(ChanType* t, byte* elem, bool* received, Hchan* c)
+{
+ bool selected;
+#line 467 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+
+ bool r;
+
+ selected = chanrecv(t, c, elem, false, received == nil ? nil : &r);
+ if(received != nil)
+ *received = r;
+return selected;
+}
+bool reflect_chansend(ChanType* t, Hchan* c, byte* elem, bool nb) __asm__ (GOSYM_PREFIX "reflect.chansend");
+bool reflect_chansend(ChanType* t, Hchan* c, byte* elem, bool nb)
+{
+ bool selected;
+#line 475 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+
+ selected = chansend(t, c, elem, !nb, runtime_getcallerpc(&t));
+return selected;
+}
+struct reflect_chanrecv_ret {
+ bool selected;
+ bool received;
+};
+struct reflect_chanrecv_ret reflect_chanrecv(ChanType* t, Hchan* c, bool nb, byte* elem) __asm__ (GOSYM_PREFIX "reflect.chanrecv");
+struct reflect_chanrecv_ret reflect_chanrecv(ChanType* t, Hchan* c, bool nb, byte* elem)
+{
+ bool selected;
+ bool received;
+#line 479 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+
+ received = false;
+ selected = chanrecv(t, c, elem, !nb, &received);
+ {
+ struct reflect_chanrecv_ret __ret;
+ __ret.selected = selected;
+ __ret.received = received;
+ return __ret;
+ }
+}
+
+#line 484 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+static Select* newselect ( int32 ) ;
+byte* runtime_newselect(int32 size) __asm__ (GOSYM_PREFIX "runtime.newselect");
+byte* runtime_newselect(int32 size)
+{
+ byte* sel;
+#line 486 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+
+ sel = (byte*)newselect(size);
+return sel;
+}
+
+#line 490 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+static Select*
+newselect ( int32 size )
+{
+int32 n;
+Select *sel;
+#line 496 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+n = 0;
+if ( size > 1 )
+n = size-1;
+#line 504 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+sel = runtime_mal ( sizeof ( *sel ) +
+n*sizeof ( sel->scase[0] ) +
+size*sizeof ( sel->lockorder[0] ) +
+size*sizeof ( sel->pollorder[0] ) ) ;
+#line 509 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+sel->tcase = size;
+sel->ncase = 0;
+sel->lockorder = ( void* ) ( sel->scase + size ) ;
+sel->pollorder = ( void* ) ( sel->lockorder + size ) ;
+#line 514 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( debug )
+runtime_printf ( "newselect s=%p size=%d\n" , sel , size ) ;
+return sel;
+}
+#line 520 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+static void selectsend ( Select *sel , Hchan *c , int index , void *elem ) ;
+void runtime_selectsend(Select* sel, Hchan* c, byte* elem, int32 index) __asm__ (GOSYM_PREFIX "runtime.selectsend");
+void runtime_selectsend(Select* sel, Hchan* c, byte* elem, int32 index)
+{
+#line 522 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+
+ // nil cases do not compete
+ if(c != nil)
+ selectsend(sel, c, index, elem);
+}
+
+#line 528 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+static void
+selectsend ( Select *sel , Hchan *c , int index , void *elem )
+{
+int32 i;
+Scase *cas;
+#line 534 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+i = sel->ncase;
+if ( i >= sel->tcase )
+runtime_throw ( "selectsend: too many cases" ) ;
+sel->ncase = i+1;
+cas = &sel->scase[i];
+#line 540 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+cas->index = index;
+cas->chan = c;
+cas->kind = CaseSend;
+cas->sg.elem = elem;
+#line 545 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( debug )
+runtime_printf ( "selectsend s=%p index=%d chan=%p\n" ,
+sel , cas->index , cas->chan ) ;
+}
+#line 551 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+static void selectrecv ( Select *sel , Hchan *c , int index , void *elem , bool* ) ;
+void runtime_selectrecv(Select* sel, Hchan* c, byte* elem, int32 index) __asm__ (GOSYM_PREFIX "runtime.selectrecv");
+void runtime_selectrecv(Select* sel, Hchan* c, byte* elem, int32 index)
+{
+#line 553 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+
+ // nil cases do not compete
+ if(c != nil)
+ selectrecv(sel, c, index, elem, nil);
+}
+void runtime_selectrecv2(Select* sel, Hchan* c, byte* elem, bool* received, int32 index) __asm__ (GOSYM_PREFIX "runtime.selectrecv2");
+void runtime_selectrecv2(Select* sel, Hchan* c, byte* elem, bool* received, int32 index)
+{
+#line 559 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+
+ // nil cases do not compete
+ if(c != nil)
+ selectrecv(sel, c, index, elem, received);
+}
+
+#line 565 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+static void
+selectrecv ( Select *sel , Hchan *c , int index , void *elem , bool *received )
+{
+int32 i;
+Scase *cas;
+#line 571 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+i = sel->ncase;
+if ( i >= sel->tcase )
+runtime_throw ( "selectrecv: too many cases" ) ;
+sel->ncase = i+1;
+cas = &sel->scase[i];
+cas->index = index;
+cas->chan = c;
+#line 579 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+cas->kind = CaseRecv;
+cas->sg.elem = elem;
+cas->receivedp = received;
+#line 583 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( debug )
+runtime_printf ( "selectrecv s=%p index=%d chan=%p\n" ,
+sel , cas->index , cas->chan ) ;
+}
+#line 589 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+static void selectdefault ( Select* , int ) ;
+void runtime_selectdefault(Select* sel, int32 index) __asm__ (GOSYM_PREFIX "runtime.selectdefault");
+void runtime_selectdefault(Select* sel, int32 index)
+{
+#line 591 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+
+ selectdefault(sel, index);
+}
+
+#line 595 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+static void
+selectdefault ( Select *sel , int32 index )
+{
+int32 i;
+Scase *cas;
+#line 601 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+i = sel->ncase;
+if ( i >= sel->tcase )
+runtime_throw ( "selectdefault: too many cases" ) ;
+sel->ncase = i+1;
+cas = &sel->scase[i];
+cas->index = index;
+cas->chan = nil;
+#line 609 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+cas->kind = CaseDefault;
+#line 611 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( debug )
+runtime_printf ( "selectdefault s=%p index=%d\n" ,
+sel , cas->index ) ;
+}
+#line 616 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+static void
+sellock ( Select *sel )
+{
+uint32 i;
+Hchan *c , *c0;
+#line 622 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+c = nil;
+for ( i=0; i<sel->ncase; i++ ) {
+c0 = sel->lockorder[i];
+if ( c0 && c0 != c ) {
+c = sel->lockorder[i];
+runtime_lock ( c ) ;
+}
+}
+}
+#line 632 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+static void
+selunlock ( Select *sel )
+{
+int32 i , n , r;
+Hchan *c;
+#line 646 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+n = ( int32 ) sel->ncase;
+r = 0;
+#line 649 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( n>0 && sel->lockorder[0] == nil )
+r = 1;
+for ( i = n-1; i >= r; i-- ) {
+c = sel->lockorder[i];
+if ( i>0 && sel->lockorder[i-1] == c )
+continue;
+runtime_unlock ( c ) ;
+}
+}
+#line 659 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+static bool
+selparkcommit ( G *gp , void *sel )
+{
+USED ( gp ) ;
+selunlock ( sel ) ;
+return true;
+}
+void runtime_block() __asm__ (GOSYM_PREFIX "runtime.block");
+void runtime_block()
+{
+#line 667 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+
+ runtime_park(nil, nil, "select (no cases)"); // forever
+}
+
+#line 671 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+static int selectgo ( Select** ) ;
+int32 runtime_selectgo(Select* sel) __asm__ (GOSYM_PREFIX "runtime.selectgo");
+int32 runtime_selectgo(Select* sel)
+{
+ int32 ret;
+#line 675 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+
+ return selectgo(&sel);
+return ret;
+}
+
+#line 679 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+static int
+selectgo ( Select **selp )
+{
+Select *sel;
+uint32 o , i , j , k , done;
+int64 t0;
+Scase *cas , *dfl;
+Hchan *c;
+SudoG *sg;
+G *gp;
+int index;
+G *g;
+#line 692 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+sel = *selp;
+if ( runtime_gcwaiting ( ) )
+runtime_gosched ( ) ;
+#line 696 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( debug )
+runtime_printf ( "select: sel=%p\n" , sel ) ;
+#line 699 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+g = runtime_g ( ) ;
+#line 701 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+t0 = 0;
+if ( runtime_blockprofilerate > 0 ) {
+t0 = runtime_cputicks ( ) ;
+for ( i=0; i<sel->ncase; i++ )
+sel->scase[i].sg.releasetime = -1;
+}
+#line 717 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+for ( i=0; i<sel->ncase; i++ )
+sel->pollorder[i] = i;
+for ( i=1; i<sel->ncase; i++ ) {
+o = sel->pollorder[i];
+j = runtime_fastrand1 ( ) % ( i+1 ) ;
+sel->pollorder[i] = sel->pollorder[j];
+sel->pollorder[j] = o;
+}
+#line 728 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+for ( i=0; i<sel->ncase; i++ ) {
+j = i;
+c = sel->scase[j].chan;
+while ( j > 0 && sel->lockorder[k= ( j-1 ) /2] < c ) {
+sel->lockorder[j] = sel->lockorder[k];
+j = k;
+}
+sel->lockorder[j] = c;
+}
+for ( i=sel->ncase; i-->0; ) {
+c = sel->lockorder[i];
+sel->lockorder[i] = sel->lockorder[0];
+j = 0;
+for ( ;; ) {
+k = j*2+1;
+if ( k >= i )
+break;
+if ( k+1 < i && sel->lockorder[k] < sel->lockorder[k+1] )
+k++;
+if ( c < sel->lockorder[k] ) {
+sel->lockorder[j] = sel->lockorder[k];
+j = k;
+continue;
+}
+break;
+}
+sel->lockorder[j] = c;
+}
+#line 763 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+sellock ( sel ) ;
+#line 765 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+loop:
+#line 767 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+dfl = nil;
+for ( i=0; i<sel->ncase; i++ ) {
+o = sel->pollorder[i];
+cas = &sel->scase[o];
+c = cas->chan;
+#line 773 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+switch ( cas->kind ) {
+case CaseRecv:
+if ( c->dataqsiz > 0 ) {
+if ( c->qcount > 0 )
+goto asyncrecv;
+} else {
+sg = dequeue ( &c->sendq ) ;
+if ( sg != nil )
+goto syncrecv;
+}
+if ( c->closed )
+goto rclose;
+break;
+#line 787 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+case CaseSend:
+if ( raceenabled )
+runtime_racereadpc ( c , runtime_selectgo , chansend ) ;
+if ( c->closed )
+goto sclose;
+if ( c->dataqsiz > 0 ) {
+if ( c->qcount < c->dataqsiz )
+goto asyncsend;
+} else {
+sg = dequeue ( &c->recvq ) ;
+if ( sg != nil )
+goto syncsend;
+}
+break;
+#line 802 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+case CaseDefault:
+dfl = cas;
+break;
+}
+}
+#line 808 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( dfl != nil ) {
+selunlock ( sel ) ;
+cas = dfl;
+goto retc;
+}
+#line 816 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+done = 0;
+for ( i=0; i<sel->ncase; i++ ) {
+o = sel->pollorder[i];
+cas = &sel->scase[o];
+c = cas->chan;
+sg = &cas->sg;
+sg->g = g;
+sg->selectdone = &done;
+#line 825 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+switch ( cas->kind ) {
+case CaseRecv:
+enqueue ( &c->recvq , sg ) ;
+break;
+#line 830 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+case CaseSend:
+enqueue ( &c->sendq , sg ) ;
+break;
+}
+}
+#line 836 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+g->param = nil;
+runtime_park ( selparkcommit , sel , "select" ) ;
+#line 839 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+sellock ( sel ) ;
+sg = g->param;
+#line 844 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+for ( i=0; i<sel->ncase; i++ ) {
+cas = &sel->scase[i];
+if ( cas != ( Scase* ) sg ) {
+c = cas->chan;
+if ( cas->kind == CaseSend )
+dequeueg ( &c->sendq ) ;
+else
+dequeueg ( &c->recvq ) ;
+}
+}
+#line 855 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( sg == nil )
+goto loop;
+#line 858 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+cas = ( Scase* ) sg;
+c = cas->chan;
+#line 861 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( c->dataqsiz > 0 )
+runtime_throw ( "selectgo: shouldn't happen" ) ;
+#line 864 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( debug )
+runtime_printf ( "wait-return: sel=%p c=%p cas=%p kind=%d\n" ,
+sel , c , cas , cas->kind ) ;
+#line 868 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( cas->kind == CaseRecv ) {
+if ( cas->receivedp != nil )
+*cas->receivedp = true;
+}
+#line 873 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( raceenabled ) {
+if ( cas->kind == CaseRecv && cas->sg.elem != nil )
+runtime_racewriteobjectpc ( cas->sg.elem , c->elemtype , selectgo , chanrecv ) ;
+else if ( cas->kind == CaseSend )
+runtime_racereadobjectpc ( cas->sg.elem , c->elemtype , selectgo , chansend ) ;
+}
+#line 880 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+selunlock ( sel ) ;
+goto retc;
+#line 883 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+asyncrecv:
+#line 885 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( raceenabled ) {
+if ( cas->sg.elem != nil )
+runtime_racewriteobjectpc ( cas->sg.elem , c->elemtype , selectgo , chanrecv ) ;
+runtime_raceacquire ( chanbuf ( c , c->recvx ) ) ;
+}
+if ( cas->receivedp != nil )
+*cas->receivedp = true;
+if ( cas->sg.elem != nil )
+runtime_memmove ( cas->sg.elem , chanbuf ( c , c->recvx ) , c->elemsize ) ;
+runtime_memclr ( chanbuf ( c , c->recvx ) , c->elemsize ) ;
+if ( ++c->recvx == c->dataqsiz )
+c->recvx = 0;
+c->qcount--;
+sg = dequeue ( &c->sendq ) ;
+if ( sg != nil ) {
+gp = sg->g;
+selunlock ( sel ) ;
+if ( sg->releasetime )
+sg->releasetime = runtime_cputicks ( ) ;
+runtime_ready ( gp ) ;
+} else {
+selunlock ( sel ) ;
+}
+goto retc;
+#line 910 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+asyncsend:
+#line 912 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( raceenabled ) {
+runtime_racerelease ( chanbuf ( c , c->sendx ) ) ;
+runtime_racereadobjectpc ( cas->sg.elem , c->elemtype , selectgo , chansend ) ;
+}
+runtime_memmove ( chanbuf ( c , c->sendx ) , cas->sg.elem , c->elemsize ) ;
+if ( ++c->sendx == c->dataqsiz )
+c->sendx = 0;
+c->qcount++;
+sg = dequeue ( &c->recvq ) ;
+if ( sg != nil ) {
+gp = sg->g;
+selunlock ( sel ) ;
+if ( sg->releasetime )
+sg->releasetime = runtime_cputicks ( ) ;
+runtime_ready ( gp ) ;
+} else {
+selunlock ( sel ) ;
+}
+goto retc;
+#line 932 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+syncrecv:
+#line 934 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( raceenabled ) {
+if ( cas->sg.elem != nil )
+runtime_racewriteobjectpc ( cas->sg.elem , c->elemtype , selectgo , chanrecv ) ;
+racesync ( c , sg ) ;
+}
+selunlock ( sel ) ;
+if ( debug )
+runtime_printf ( "syncrecv: sel=%p c=%p o=%d\n" , sel , c , o ) ;
+if ( cas->receivedp != nil )
+*cas->receivedp = true;
+if ( cas->sg.elem != nil )
+runtime_memmove ( cas->sg.elem , sg->elem , c->elemsize ) ;
+gp = sg->g;
+gp->param = sg;
+if ( sg->releasetime )
+sg->releasetime = runtime_cputicks ( ) ;
+runtime_ready ( gp ) ;
+goto retc;
+#line 953 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+rclose:
+#line 955 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+selunlock ( sel ) ;
+if ( cas->receivedp != nil )
+*cas->receivedp = false;
+if ( cas->sg.elem != nil )
+runtime_memclr ( cas->sg.elem , c->elemsize ) ;
+if ( raceenabled )
+runtime_raceacquire ( c ) ;
+goto retc;
+#line 964 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+syncsend:
+#line 966 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( raceenabled ) {
+runtime_racereadobjectpc ( cas->sg.elem , c->elemtype , selectgo , chansend ) ;
+racesync ( c , sg ) ;
+}
+selunlock ( sel ) ;
+if ( debug )
+runtime_printf ( "syncsend: sel=%p c=%p o=%d\n" , sel , c , o ) ;
+if ( sg->elem != nil )
+runtime_memmove ( sg->elem , cas->sg.elem , c->elemsize ) ;
+gp = sg->g;
+gp->param = sg;
+if ( sg->releasetime )
+sg->releasetime = runtime_cputicks ( ) ;
+runtime_ready ( gp ) ;
+#line 981 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+retc:
+#line 983 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+index = cas->index;
+if ( cas->sg.releasetime > 0 )
+runtime_blockevent ( cas->sg.releasetime - t0 , 2 ) ;
+runtime_free ( sel ) ;
+return index;
+#line 989 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+sclose:
+#line 991 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+selunlock ( sel ) ;
+runtime_panicstring ( "send on closed channel" ) ;
+return 0;
+}
+#line 997 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+typedef struct runtimeSelect runtimeSelect;
+struct runtimeSelect
+{
+uintptr dir;
+ChanType *typ;
+Hchan *ch;
+byte *val;
+} ;
+#line 1007 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+enum SelectDir {
+SelectSend = 1 ,
+SelectRecv ,
+SelectDefault ,
+} ;
+struct reflect_rselect_ret {
+ intgo chosen;
+ bool recvOK;
+};
+struct reflect_rselect_ret reflect_rselect(Slice cases) __asm__ (GOSYM_PREFIX "reflect.rselect");
+struct reflect_rselect_ret reflect_rselect(Slice cases)
+{
+ intgo chosen;
+ bool recvOK;
+#line 1013 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+
+ int32 i;
+ Select *sel;
+ runtimeSelect* rcase, *rc;
+
+ chosen = -1;
+ recvOK = false;
+
+ rcase = (runtimeSelect*)cases.__values;
+
+ sel = newselect(cases.__count);
+ for(i=0; i<cases.__count; i++) {
+ rc = &rcase[i];
+ switch(rc->dir) {
+ case SelectDefault:
+ selectdefault(sel, i);
+ break;
+ case SelectSend:
+ if(rc->ch == nil)
+ break;
+ selectsend(sel, rc->ch, i, rc->val);
+ break;
+ case SelectRecv:
+ if(rc->ch == nil)
+ break;
+ selectrecv(sel, rc->ch, i, rc->val, &recvOK);
+ break;
+ }
+ }
+
+ chosen = (intgo)(uintptr)selectgo(&sel);
+ {
+ struct reflect_rselect_ret __ret;
+ __ret.chosen = chosen;
+ __ret.recvOK = recvOK;
+ return __ret;
+ }
+}
+
+#line 1046 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+static void closechan ( Hchan *c , void *pc ) ;
+void runtime_closechan(Hchan* c) __asm__ (GOSYM_PREFIX "runtime.closechan");
+void runtime_closechan(Hchan* c)
+{
+#line 1048 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+
+ closechan(c, runtime_getcallerpc(&c));
+}
+void reflect_chanclose(Hchan* c) __asm__ (GOSYM_PREFIX "reflect.chanclose");
+void reflect_chanclose(Hchan* c)
+{
+#line 1052 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+
+ closechan(c, runtime_getcallerpc(&c));
+}
+
+#line 1056 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+static void
+closechan ( Hchan *c , void *pc )
+{
+SudoG *sg;
+G* gp;
+#line 1062 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( c == nil )
+runtime_panicstring ( "close of nil channel" ) ;
+#line 1065 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( runtime_gcwaiting ( ) )
+runtime_gosched ( ) ;
+#line 1068 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+runtime_lock ( c ) ;
+if ( c->closed ) {
+runtime_unlock ( c ) ;
+runtime_panicstring ( "close of closed channel" ) ;
+}
+#line 1074 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( raceenabled ) {
+runtime_racewritepc ( c , pc , runtime_closechan ) ;
+runtime_racerelease ( c ) ;
+}
+#line 1079 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+c->closed = true;
+#line 1082 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+for ( ;; ) {
+sg = dequeue ( &c->recvq ) ;
+if ( sg == nil )
+break;
+gp = sg->g;
+gp->param = nil;
+if ( sg->releasetime )
+sg->releasetime = runtime_cputicks ( ) ;
+runtime_ready ( gp ) ;
+}
+#line 1094 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+for ( ;; ) {
+sg = dequeue ( &c->sendq ) ;
+if ( sg == nil )
+break;
+gp = sg->g;
+gp->param = nil;
+if ( sg->releasetime )
+sg->releasetime = runtime_cputicks ( ) ;
+runtime_ready ( gp ) ;
+}
+#line 1105 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+runtime_unlock ( c ) ;
+}
+#line 1108 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+void
+__go_builtin_close ( Hchan *c )
+{
+runtime_closechan ( c ) ;
+}
+intgo reflect_chanlen(Hchan* c) __asm__ (GOSYM_PREFIX "reflect.chanlen");
+intgo reflect_chanlen(Hchan* c)
+{
+ intgo len;
+#line 1114 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+
+ if(c == nil)
+ len = 0;
+ else
+ len = c->qcount;
+return len;
+}
+
+#line 1121 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+intgo
+__go_chan_len ( Hchan *c )
+{
+return reflect_chanlen ( c ) ;
+}
+intgo reflect_chancap(Hchan* c) __asm__ (GOSYM_PREFIX "reflect.chancap");
+intgo reflect_chancap(Hchan* c)
+{
+ intgo cap;
+#line 1127 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+
+ if(c == nil)
+ cap = 0;
+ else
+ cap = c->dataqsiz;
+return cap;
+}
+
+#line 1134 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+intgo
+__go_chan_cap ( Hchan *c )
+{
+return reflect_chancap ( c ) ;
+}
+#line 1140 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+static SudoG*
+dequeue ( WaitQ *q )
+{
+SudoG *sgp;
+#line 1145 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+loop:
+sgp = q->first;
+if ( sgp == nil )
+return nil;
+q->first = sgp->link;
+#line 1152 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( sgp->selectdone != nil ) {
+#line 1154 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+if ( *sgp->selectdone != 0 || !runtime_cas ( sgp->selectdone , 0 , 1 ) )
+goto loop;
+}
+#line 1158 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+return sgp;
+}
+#line 1161 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+static void
+dequeueg ( WaitQ *q )
+{
+SudoG **l , *sgp , *prevsgp;
+G *g;
+#line 1167 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+g = runtime_g ( ) ;
+prevsgp = nil;
+for ( l=&q->first; ( sgp=*l ) != nil; l=&sgp->link , prevsgp=sgp ) {
+if ( sgp->g == g ) {
+*l = sgp->link;
+if ( q->last == sgp )
+q->last = prevsgp;
+break;
+}
+}
+}
+#line 1179 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+static void
+enqueue ( WaitQ *q , SudoG *sgp )
+{
+sgp->link = nil;
+if ( q->first == nil ) {
+q->first = sgp;
+q->last = sgp;
+return;
+}
+q->last->link = sgp;
+q->last = sgp;
+}
+#line 1192 "../../../trunk/libgo/runtime/../../../trunk/libgo/runtime/chan.goc"
+static void
+racesync ( Hchan *c , SudoG *sg )
+{
+runtime_racerelease ( chanbuf ( c , 0 ) ) ;
+runtime_raceacquireg ( sg->g , chanbuf ( c , 0 ) ) ;
+runtime_racereleaseg ( sg->g , chanbuf ( c , 0 ) ) ;
+runtime_raceacquire ( chanbuf ( c , 0 ) ) ;
+} \ No newline at end of file