Movatterモバイル変換

[0]ホーム
URL:

Skip to content

Navigation Menu

Sign in
Appearance settings

Search code, repositories, users, issues, pull requests...

Provide feedback

We read every piece of feedback, and take your input very seriously.

Saved searches

Use saved searches to filter your results more quickly

 Sign up
Appearance settings

Commit6024ac1

Browse files
committed
Back out old version and update with newer patch of:
Fix for non-blocking connections in libpqBernhard Herzog
1 parent66cd6a0 commit6024ac1

File tree

4 files changed

+42
-60
lines changed

4 files changed

+42
-60
lines changed

‎src/interfaces/libpq/fe-exec.c

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -8,7 +8,7 @@
88
*
99
*
1010
* IDENTIFICATION
11-
* $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-exec.c,v 1.115 2002/03/0505:20:12 momjian Exp $
11+
* $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-exec.c,v 1.116 2002/03/0506:07:26 momjian Exp $
1212
*
1313
*-------------------------------------------------------------------------
1414
*/

‎src/interfaces/libpq/fe-misc.c

Lines changed: 39 additions & 53 deletions
Original file line numberDiff line numberDiff line change
@@ -25,7 +25,7 @@
2525
*
2626
*
2727
* IDENTIFICATION
28-
* $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-misc.c,v 1.66 2002/03/0505:20:12 momjian Exp $
28+
* $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-misc.c,v 1.67 2002/03/0506:07:26 momjian Exp $
2929
*
3030
*-------------------------------------------------------------------------
3131
*/
@@ -110,21 +110,19 @@ pqPutc(char c, PGconn *conn)
110110
staticint
111111
pqPutBytes(constchar*s,size_tnbytes,PGconn*conn)
112112
{
113-
/*
114-
* Strategy to handle blocking and non-blocking connections: Fill the
115-
* output buffer and flush it repeatedly until either all data has
116-
* been sent or is at least queued in the buffer.
113+
/* Strategy to handle blocking and non-blocking connections: Fill
114+
* the output buffer and flush it repeatedly until either all data
115+
* has been sent or is at least queued in the buffer.
117116
*
118-
* For non-blocking connections, grow the buffer if not all data fits
119-
* into it and the buffer can't be sent because the socket would
120-
* block.
117+
* For non-blocking connections, grow the buffer if not all data
118+
*fitsinto it and the buffer can't be sent because the socket
119+
*wouldblock.
121120
*/
122121

123122
while (nbytes)
124123
{
125-
size_tavail,
126-
remaining;
127-
124+
size_tavail,remaining;
125+
128126
/* fill the output buffer */
129127
avail=Max(conn->outBufSize-conn->outCount,0);
130128
remaining=Min(avail,nbytes);
@@ -133,40 +131,36 @@ pqPutBytes(const char *s, size_t nbytes, PGconn *conn)
133131
s+=remaining;
134132
nbytes-=remaining;
135133

136-
/*
137-
* if the data didn't fit completely into the buffer, try to flush
138-
* the buffer
139-
*/
134+
/* if the data didn't fit completely into the buffer, try to
135+
* flush the buffer */
140136
if (nbytes)
141137
{
142-
intsend_result=pqSendSome(conn);
138+
intsend_result=pqSendSome(conn);
143139

144140
/* if there were errors, report them */
145141
if (send_result<0)
146142
returnEOF;
147143

148-
/*
149-
*if not all data could be sent, increase the output buffer,
150-
*put the rest of s into it and return successfully. This
151-
*case will only happen in anon-blocking connection
144+
/* if not all data could be sent, increase the output
145+
*buffer, put the rest of s into it and return
146+
*successfully. This case will only happen in a
147+
* non-blocking connection
152148
*/
153149
if (send_result>0)
154150
{
155-
/*
156-
*try to grow the buffer.FIXME: The new size could be
157-
*chosen moreintelligently.
151+
/* try to grow the buffer.
152+
* FIXME: The new size could be chosen more
153+
* intelligently.
158154
*/
159-
size_tbuflen=conn->outCount+nbytes;
160-
155+
size_tbuflen=conn->outCount+nbytes;
161156
if (buflen>conn->outBufSize)
162157
{
163-
char*newbuf=realloc(conn->outBuffer,buflen);
164-
158+
char*newbuf=realloc(conn->outBuffer,buflen);
165159
if (!newbuf)
166160
{
167161
/* realloc failed. Probably out of memory */
168162
printfPQExpBuffer(&conn->errorMessage,
169-
"cannot allocate memory for output buffer\n");
163+
"cannot allocate memory for output buffer\n");
170164
returnEOF;
171165
}
172166
conn->outBuffer=newbuf;
@@ -181,11 +175,9 @@ pqPutBytes(const char *s, size_t nbytes, PGconn *conn)
181175
}
182176
}
183177

184-
/*
185-
* pqSendSome was able to send all data. Continue with the next
186-
* chunk of s.
187-
*/
188-
}/* while */
178+
/* pqSendSome was able to send all data. Continue with the next
179+
* chunk of s. */
180+
}/* while */
189181

190182
return0;
191183
}
@@ -631,19 +623,11 @@ pqReadData(PGconn *conn)
631623
return-1;
632624
}
633625

634-
/* pqSendSome: send any data waiting in the output buffer and return 0
635-
* if all data was sent, -1 if an error occurred or 1 if not all data
636-
* could be written because the socket would have blocked.
637-
*
638-
* For a blocking connection all data will be sent unless an error
639-
* occurrs. -1 will only be returned if the connection is non-blocking.
640-
*
641-
* Internally, the case of data remaining in the buffer after pqSendSome
642-
* could be determined by looking at outCount, but this function also
643-
* serves as the implementation of the new API function PQsendsome.
626+
/*
627+
* pqSendSome: send any data waiting in the output buffer.
644628
*
645-
*FIXME: perhaps it would be more useful to return the number of bytes
646-
*remaining?
629+
*Return 0 on sucess, -1 on failure and 1 when data remains because the
630+
*socket would block and the connection is non-blocking.
647631
*/
648632
int
649633
pqSendSome(PGconn*conn)
@@ -655,7 +639,7 @@ pqSendSome(PGconn *conn)
655639
{
656640
printfPQExpBuffer(&conn->errorMessage,
657641
libpq_gettext("connection not open\n"));
658-
returnEOF;
642+
return-1;
659643
}
660644

661645
/*
@@ -713,7 +697,7 @@ pqSendSome(PGconn *conn)
713697
printfPQExpBuffer(&conn->errorMessage,
714698
libpq_gettext(
715699
"server closed the connection unexpectedly\n"
716-
"\tThis probably means the server terminated abnormally\n"
700+
"\tThis probably means the server terminated abnormally\n"
717701
"\tbefore or while processing the request.\n"));
718702

719703
/*
@@ -778,6 +762,7 @@ pqSendSome(PGconn *conn)
778762
}
779763

780764

765+
781766
/*
782767
* pqFlush: send any data waiting in the output buffer
783768
*
@@ -790,7 +775,9 @@ int
790775
pqFlush(PGconn*conn)
791776
{
792777
if (pqSendSome(conn))
778+
{
793779
returnEOF;
780+
}
794781
return0;
795782
}
796783

@@ -812,7 +799,7 @@ pqWait(int forRead, int forWrite, PGconn *conn)
812799
{
813800
printfPQExpBuffer(&conn->errorMessage,
814801
libpq_gettext("connection not open\n"));
815-
return-1;
802+
returnEOF;
816803
}
817804

818805
if (forRead||forWrite)
@@ -913,20 +900,19 @@ libpq_gettext(const char *msgid)
913900
* strerror replacement for windows:
914901
*
915902
* This works on WIN2000 and newer, but we don't know where to find WinSock
916-
* error strings on older Windows flavors.If you know, clue us in.
903+
* error strings on older Windows flavors.If you know, clue us in.
917904
*/
918905
constchar*
919906
winsock_strerror(inteno)
920907
{
921-
staticcharerr_buf[512];
922-
923-
#defineWSSE_MAXLEN (sizeof(err_buf)-1-13)/* 13 for " (0x00000000)" */
908+
staticcharerr_buf[512];
909+
#defineWSSE_MAXLEN (sizeof(err_buf)-1-13)/* 13 for " (0x00000000)" */
924910
intlength;
925911

926912
/* First try the "system table", this works on Win2k and up */
927913

928914
if (FormatMessage(
929-
FORMAT_MESSAGE_IGNORE_INSERTS |FORMAT_MESSAGE_FROM_SYSTEM,
915+
FORMAT_MESSAGE_IGNORE_INSERTS |FORMAT_MESSAGE_FROM_SYSTEM,
930916
0,
931917
eno,
932918
MAKELANGID(LANG_NEUTRAL,SUBLANG_DEFAULT),

‎src/interfaces/libpq/libpq-fe.h

Lines changed: 1 addition & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
77
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
88
* Portions Copyright (c) 1994, Regents of the University of California
99
*
10-
* $Id: libpq-fe.h,v 1.82 2002/03/0505:20:12 momjian Exp $
10+
* $Id: libpq-fe.h,v 1.83 2002/03/0506:07:26 momjian Exp $
1111
*
1212
*-------------------------------------------------------------------------
1313
*/
@@ -282,10 +282,6 @@ extern intPQisnonblocking(const PGconn *conn);
282282

283283
/* Force the write buffer to be written (or at least try) */
284284
externintPQflush(PGconn*conn);
285-
/*
286-
* Force the write buffer to be written (or at least try)
287-
* (better than PQflush)
288-
*/
289285
externintPQsendSome(PGconn*conn);
290286

291287
/*

‎src/interfaces/libpq/libpq-int.h

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -12,7 +12,7 @@
1212
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
1313
* Portions Copyright (c) 1994, Regents of the University of California
1414
*
15-
* $Id: libpq-int.h,v 1.45 2002/03/0505:20:12 momjian Exp $
15+
* $Id: libpq-int.h,v 1.46 2002/03/0506:07:27 momjian Exp $
1616
*
1717
*-------------------------------------------------------------------------
1818
*/

0 commit comments

Comments
 (0)
[8]ページ先頭
©2009-2025 Movatter.jp