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Commit6afa2ae

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committed
Clean up broken test for whether to wait for input in SSL case.
Per discussion with Magnus Hagander.
1 parent87968e3 commit6afa2ae

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1 file changed

+34
-27
lines changed

1 file changed

+34
-27
lines changed

‎src/backend/postmaster/postmaster.c

Lines changed: 34 additions & 27 deletions
Original file line numberDiff line numberDiff line change
@@ -11,7 +11,7 @@
1111
*
1212
*
1313
* IDENTIFICATION
14-
* $Header: /cvsroot/pgsql/src/backend/postmaster/postmaster.c,v 1.174 2000/10/24 21:33:52 tgl Exp $
14+
* $Header: /cvsroot/pgsql/src/backend/postmaster/postmaster.c,v 1.175 2000/10/25 22:27:25 tgl Exp $
1515
*
1616
* NOTES
1717
*
@@ -262,7 +262,7 @@ static void InitSSL(void);
262262
#endif
263263

264264
#ifdefCYR_RECODE
265-
voidGetCharSetByHost(char*,int,char*);
265+
externvoidGetCharSetByHost(char*,int,char*);
266266

267267
#endif
268268

@@ -803,34 +803,38 @@ ServerLoop(void)
803803
Port*port;
804804
fd_setrmask,
805805
wmask;
806+
structtimeval*timeout= (structtimeval*)NULL;
806807
#ifdefUSE_SSL
807-
boolno_select= false;
808-
#endif
808+
structtimevaltimeout_tv;
809809

810810
/*
811-
* Wait for something to happen.
811+
* If we are using SSL, there may be input data already read and
812+
* pending in SSL's input buffers. If so, check for additional
813+
* input from other clients, but don't delay before processing.
812814
*/
813-
memcpy((char*)&rmask, (char*)&readmask,sizeof(fd_set));
814-
memcpy((char*)&wmask, (char*)&writemask,sizeof(fd_set));
815-
816-
#ifdefUSE_SSL
817815
for (curr=DLGetHead(PortList);curr;curr=DLGetSucc(curr))
818816
{
819-
if (((Port*)DLE_VAL(curr))->ssl&&
820-
SSL_pending(((Port*)DLE_VAL(curr))->ssl)>0)
817+
Port*port= (Port*)DLE_VAL(curr);
818+
819+
if (port->ssl&&SSL_pending(port->ssl))
821820
{
822-
no_select= true;
821+
timeout_tv.tv_sec=0;
822+
timeout_tv.tv_usec=0;
823+
timeout=&timeout_tv;
823824
break;
824825
}
825826
}
826-
if (no_select)
827-
FD_ZERO(&rmask);/* So we don't accept() anything below */
828827
#endif
829828

829+
/*
830+
* Wait for something to happen.
831+
*/
832+
memcpy((char*)&rmask, (char*)&readmask,sizeof(fd_set));
833+
memcpy((char*)&wmask, (char*)&writemask,sizeof(fd_set));
834+
830835
PG_SETMASK(&UnBlockSig);
831836

832-
if (select(nSockets,&rmask,&wmask, (fd_set*)NULL,
833-
(structtimeval*)NULL)<0)
837+
if (select(nSockets,&rmask,&wmask, (fd_set*)NULL,timeout)<0)
834838
{
835839
if (errno==EINTR||errno==EWOULDBLOCK)
836840
continue;
@@ -894,8 +898,10 @@ ServerLoop(void)
894898
(void*)port);
895899
}
896900

897-
/* Build up new masks for select(). */
898-
901+
/*
902+
* Scan active ports, processing any available input. While we
903+
* are at it, build up new masks for next select().
904+
*/
899905
nSockets=initMasks(&readmask,&writemask);
900906

901907
curr=DLGetHead(PortList);
@@ -946,7 +952,7 @@ ServerLoop(void)
946952
/*
947953
* Can't start backend if max backend count is exceeded.
948954
*
949-
* The same whenshutdowningdata base.
955+
* The same when data base is in startup/shutdown mode.
950956
*/
951957
if (Shutdown>NoShutdown)
952958
PacketSendError(&port->pktInfo,
@@ -966,8 +972,8 @@ ServerLoop(void)
966972
/*
967973
* If the backend start fails then keep the connection
968974
* open to report it. Otherwise, pretend there is an
969-
* error to closethe connection which will now be
970-
* managed by the backend.
975+
* error to closeour descriptor for the connection,
976+
*which will now bemanaged by the backend.
971977
*/
972978
if (BackendStartup(port)!=STATUS_OK)
973979
PacketSendError(&port->pktInfo,
@@ -1067,22 +1073,23 @@ readStartupPacket(void *arg, PacketLen len, void *pkt)
10671073
charSSLok;
10681074

10691075
#ifdefUSE_SSL
1070-
if (!EnableSSL||port->laddr.sa.sa_family!=AF_INET)
1071-
/* No SSL when disabled or on Unix sockets */
1072-
SSLok='N';
1076+
/* No SSL when disabled or on Unix sockets */
1077+
if (!EnableSSL||port->laddr.sa.sa_family!=AF_INET)
1078+
SSLok='N';
10731079
else
1074-
SSLok='S';/* Support for SSL */
1080+
SSLok='S';/* Support for SSL */
10751081
#else
10761082
SSLok='N';/* No support for SSL */
10771083
#endif
10781084
if (send(port->sock,&SSLok,1,0)!=1)
10791085
{
10801086
perror("Failed to send SSL negotiation response");
1081-
returnSTATUS_ERROR;/* Close connection */
1087+
returnSTATUS_ERROR;/* Close connection */
10821088
}
10831089

10841090
#ifdefUSE_SSL
1085-
if (SSLok=='S') {
1091+
if (SSLok=='S')
1092+
{
10861093
if (!(port->ssl=SSL_new(SSL_context))||
10871094
!SSL_set_fd(port->ssl,port->sock)||
10881095
SSL_accept(port->ssl) <=0)

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