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Commit8567bb2

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Corrects a typo, introduces missing variables, and rearranges the
initialization of stats process under EXEC_BACKEND.[A cleaner, rationalized approach to stat/backend/SSDataBase childprocesses under EXEC_BACKEND is on my TODO list. However this patchtakes care of immediate concerns (ie. stats test now passes underwin32)]Claudio Natoli
1 parenteeec317 commit8567bb2

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3 files changed

+41
-11
lines changed

3 files changed

+41
-11
lines changed

‎src/backend/postmaster/pgstat.c‎

Lines changed: 33 additions & 9 deletions
Original file line numberDiff line numberDiff line change
@@ -13,7 +13,7 @@
1313
*
1414
*Copyright (c) 2001-2003, PostgreSQL Global Development Group
1515
*
16-
*$PostgreSQL: pgsql/src/backend/postmaster/pgstat.c,v 1.58 2004/02/02 16:37:46 momjian Exp $
16+
*$PostgreSQL: pgsql/src/backend/postmaster/pgstat.c,v 1.59 2004/03/09 05:11:52 momjian Exp $
1717
* ----------
1818
*/
1919
#include"postgres.h"
@@ -51,6 +51,10 @@
5151
#include"utils/ps_status.h"
5252
#include"utils/syscache.h"
5353

54+
#ifdefEXEC_BACKEND
55+
#include"utils/guc.h"
56+
#endif
57+
5458
#ifdefWIN32
5559
externpid_twin32_forkexec(constchar*path,char*argv[]);
5660
#endif
@@ -158,6 +162,17 @@ extern int pgpipe(int handles[2]); /* pgpipe() is in /src/port */
158162
* ------------------------------------------------------------
159163
*/
160164

165+
#ifdefEXEC_BACKEND
166+
167+
void
168+
pgstat_init_forkexec_backend(void)
169+
{
170+
Assert(DataDir!=NULL);
171+
snprintf(pgStat_fname,MAXPGPATH,
172+
PGSTAT_STAT_FILENAME,DataDir);
173+
}
174+
175+
#endif
161176

162177
/* ----------
163178
* pgstat_init() -
@@ -364,9 +379,9 @@ static pid_t
364379
pgstat_forkexec(STATS_PROCESS_TYPEprocType)
365380
{
366381
pid_tpid;
367-
char*av[11];
382+
char*av[13];
368383
intac=0,bufc=0,i;
369-
charpgstatBuf[8][MAXPGPATH];
384+
charpgstatBuf[10][MAXPGPATH];
370385

371386
av[ac++]="postgres";
372387
switch (procType)
@@ -391,11 +406,15 @@ pgstat_forkexec(STATS_PROCESS_TYPE procType)
391406
snprintf(pgstatBuf[bufc++],MAXPGPATH,"%d",pgStatPipe[0]);
392407
snprintf(pgstatBuf[bufc++],MAXPGPATH,"%d",pgStatPipe[1]);
393408

409+
/* + misc */
410+
snprintf(pgstatBuf[bufc++],MAXPGPATH,"%d",MaxBackends);
411+
394412
/* + the pstat file names, and postgres pathname */
395413
/* FIXME: [fork/exec] whitespaces in directories? */
396414
snprintf(pgstatBuf[bufc++],MAXPGPATH,"%s",pgStat_tmpfname);
397415
snprintf(pgstatBuf[bufc++],MAXPGPATH,"%s",pgStat_fname);
398416
snprintf(pgstatBuf[bufc++],MAXPGPATH,"%s",pg_pathname);
417+
snprintf(pgstatBuf[bufc++],MAXPGPATH,"%s",DataDir);
399418

400419
/* Add to the arg list */
401420
Assert(bufc <=lengthof(pgstatBuf));
@@ -427,16 +446,20 @@ pgstat_forkexec(STATS_PROCESS_TYPE procType)
427446
staticvoid
428447
pgstat_parseArgs(PGSTAT_FORK_ARGS)
429448
{
430-
Assert(argc==8);
449+
Assert(argc==10);
431450
argc=0;
432451
pgStatSock=atoi(argv[argc++]);
433452
pgStatPmPipe[0]=atoi(argv[argc++]);
434453
pgStatPmPipe[1]=atoi(argv[argc++]);
435454
pgStatPipe[0]=atoi(argv[argc++]);
436455
pgStatPipe[1]=atoi(argv[argc++]);
456+
MaxBackends=atoi(argv[argc++]);
437457
strncpy(pgStat_tmpfname,argv[argc++],MAXPGPATH);
438458
strncpy(pgStat_fname,argv[argc++],MAXPGPATH);
439459
strncpy(pg_pathname,argv[argc++],MAXPGPATH);
460+
DataDir=strdup(argv[argc++]);
461+
462+
read_nondefault_variables();
440463
}
441464

442465
#endif
@@ -504,7 +527,7 @@ pgstat_start(void)
504527
#endif
505528

506529
#ifdefEXEC_BACKEND
507-
switch ((pgStatSock= (int)pgstat_forkexec(STAT_PROC_BUFFER)))
530+
switch ((pgStatPid= (int)pgstat_forkexec(STAT_PROC_BUFFER)))
508531
#else
509532
switch ((pgStatPid= (int)fork()))
510533
#endif
@@ -1344,6 +1367,10 @@ pgstat_mainInit(void)
13441367
/* In EXEC case we will not have inherited these settings */
13451368
IsPostmasterEnvironment= true;
13461369
whereToSendOutput=None;
1370+
1371+
/* Setup global context */
1372+
MemoryContextInit();/* before any elog'ing can occur */
1373+
InitializeGUCOptions();
13471374
#endif
13481375

13491376
MyProcPid=getpid();/* reset MyProcPid */
@@ -1382,7 +1409,6 @@ NON_EXEC_STATIC void
13821409
pgstat_main(PGSTAT_FORK_ARGS)
13831410
{
13841411
pgstat_mainInit();/* Note: for *both* EXEC_BACKEND and regular cases */
1385-
13861412
#ifdefEXEC_BACKEND
13871413
pgstat_parseArgs(argc,argv);
13881414
#endif
@@ -1458,9 +1484,7 @@ pgstat_mainChild(PGSTAT_FORK_ARGS)
14581484
HASHCTLhash_ctl;
14591485

14601486
#ifdefEXEC_BACKEND
1461-
MemoryContextInit();/* before any elog'ing can occur */
1462-
1463-
pgstat_mainInit();
1487+
pgstat_mainInit();/* Note: only in EXEC_BACKEND case */
14641488
pgstat_parseArgs(argc,argv);
14651489
#else
14661490
MyProcPid=getpid();/* reset MyProcPid */

‎src/backend/postmaster/postmaster.c‎

Lines changed: 4 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -37,7 +37,7 @@
3737
*
3838
*
3939
* IDENTIFICATION
40-
* $PostgreSQL: pgsql/src/backend/postmaster/postmaster.c,v 1.371 2004/03/0904:43:06 momjian Exp $
40+
* $PostgreSQL: pgsql/src/backend/postmaster/postmaster.c,v 1.372 2004/03/0905:11:52 momjian Exp $
4141
*
4242
* NOTES
4343
*
@@ -2721,6 +2721,9 @@ SubPostmasterMain(int argc, char* argv[])
27212721
read_nondefault_variables();
27222722
read_backend_variables(backendID,&port);
27232723

2724+
/* Remaining initialization */
2725+
pgstat_init_forkexec_backend();
2726+
27242727
/* FIXME: [fork/exec] Ugh */
27252728
load_hba();
27262729
load_ident();

‎src/include/pgstat.h‎

Lines changed: 4 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -5,7 +5,7 @@
55
*
66
*Copyright (c) 2001-2003, PostgreSQL Global Development Group
77
*
8-
*$PostgreSQL: pgsql/src/include/pgstat.h,v 1.20 2004/03/02 18:37:52 momjian Exp $
8+
*$PostgreSQL: pgsql/src/include/pgstat.h,v 1.21 2004/03/09 05:11:53 momjian Exp $
99
* ----------
1010
*/
1111
#ifndefPGSTAT_H
@@ -368,6 +368,9 @@ extern void pgstat_mainChild(PGSTAT_FORK_ARGS);
368368
* Functions called from postmaster
369369
* ----------
370370
*/
371+
#ifdefEXEC_BACKEND
372+
externvoidpgstat_init_forkexec_backend(void);
373+
#endif
371374
externvoidpgstat_init(void);
372375
externvoidpgstat_start(void);
373376
externboolpgstat_ispgstat(intpid);

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