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From: Massimo Dal Zotto <dz@cs.unitn.it>

Browse Source 
assert.patch

        adds a switch to turn on/off the assert checking if enabled at compile
        time. You can now compile postgres with assert checking and disable it
        at runtime in a production environment.
This commit is contained in:
Marc G. Fournier
1998-08-25 21:04:41 +00:00
parent 1682c362a3
commit 1a5fb65463
4 changed files with 89 additions and 18 deletions
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57
src/backend/tcop/postgres.c
View File

@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.84 1998/08/25 15:00:17 thomas Exp $
* $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.85 1998/08/25 21:04:38 scrappy Exp $
*
* NOTES
* this is the "main" module of the postgres backend and
@@ -850,6 +850,9 @@ usage(char *progname)
{
fprintf(stderr,
"Usage: %s [options] [dbname]\n", progname);
#ifdef USE_ASSERT_CHECKING
fprintf(stderr, " A: enable/disable assert checking\n");
#endif
fprintf(stderr, "\t-B buffers\tset number of buffers in buffer pool\n");
fprintf(stderr, "\t-C \t\tsupress version info\n");
fprintf(stderr, "\t-D dir\t\tdata directory\n");
@@ -866,6 +869,7 @@ usage(char *progname)
fprintf(stderr, "\t-o file\t\tsend stdout and stderr to given filename \n");
fprintf(stderr, "\t-s \t\tshow stats after each query\n");
fprintf(stderr, "\t-v version\tset protocol version being used by frontend\n");
fprintf(stderr, "\t-W \t\twait N seconds to allow attach from a debugger\n");
}
/* ----------------------------------------------------------------
@@ -943,10 +947,22 @@ PostgresMain(int argc, char *argv[], int real_argc, char *real_argv[])
optind = 1; /* reset after postmaster usage */
while ((flag = getopt(argc, argv, "B:bCD:d:Eef:iK:Lm:MNo:P:pQS:st:v:x:F"))
while ((flag = getopt(argc, argv,
"A:B:bCD:d:Eef:iK:Lm:MNo:P:pQS:st:v:x:FW:"))
!= EOF)
switch (flag)
{
case 'A':
/* ----------------
* enable/disable assert checking.
* ----------------
*/
#ifdef USE_ASSERT_CHECKING
assert_enabled = atoi(optarg);
#else
fprintf(stderr, "Assert checking is not enabled\n");
#endif
break;
case 'b':
/* ----------------
@@ -955,6 +971,7 @@ PostgresMain(int argc, char *argv[], int real_argc, char *real_argv[])
*/
BushyPlanFlag = 1;
break;
case 'B':
/* ----------------
* specify the size of buffer pool
@@ -1165,6 +1182,14 @@ PostgresMain(int argc, char *argv[], int real_argc, char *real_argv[])
FrontendProtocol = (ProtocolVersion) atoi(optarg);
break;
case 'W':
/* ----------------
* wait N seconds to allow attach from a debugger
* ----------------
*/
sleep(atoi(optarg));
break;
case 'x':
#if 0 /* planner/xfunc.h */
@@ -1390,7 +1415,7 @@ PostgresMain(int argc, char *argv[], int real_argc, char *real_argv[])
if (!IsUnderPostmaster)
{
puts("\nPOSTGRES backend interactive interface");
puts("$Revision: 1.84 $ $Date: 1998/08/25 15:00:17 $");
puts("$Revision: 1.85 $ $Date: 1998/08/25 21:04:38 $");
}
/* ----------------
@@ -1631,3 +1656,29 @@ ShowUsage(void)
PrintBufferUsage(StatFp);
/* DisplayTupleCount(StatFp); */
}
#ifdef USE_ASSERT_CHECKING
int
assertEnable(int val)
{
assert_enabled = val;
return val;
}
#ifdef ASSERT_CHECKING_TEST
int
assertTest(int val)
{
Assert(val == 0);
if (assert_enabled) {
/* val != 0 should be trapped by previous Assert */
elog(NOTICE, "Assert test successfull (val = %d)", val);
} else {
elog(NOTICE, "Assert checking is disabled (val = %d)", val);
}
return val;
}
#endif
#endif