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Support TB (terabyte) memory unit in GUC variables.

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Patch by Simon Riggs, reviewed by Jeff Janes and me.
This commit is contained in:
Fujii Masao
2013-06-20 08:17:14 +09:00
parent f979599b20
commit bab54e383d
3 changed files with 26 additions and 4 deletions
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26
src/backend/utils/misc/guc.c
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@ -105,6 +105,7 @@
#define KB_PER_MB (1024)
#define KB_PER_GB (1024*1024)
#define KB_PER_TB (1024*1024*1024)
#define MS_PER_S 1000
#define S_PER_MIN 60
@ -4837,7 +4838,7 @@ parse_int(const char *value, int *result, int flags, const char **hintmsg)
{
/* Set hint for use if no match or trailing garbage */
if (hintmsg)
*hintmsg = gettext_noop("Valid units for this parameter are \"kB\", \"MB\", and \"GB\".");
*hintmsg = gettext_noop("Valid units for this parameter are \"kB\", \"MB\", \"GB\", and \"TB\".");
#if BLCKSZ < 1024 || BLCKSZ > (1024*1024)
#error BLCKSZ must be between 1KB and 1MB
@ -4891,6 +4892,22 @@ parse_int(const char *value, int *result, int flags, const char **hintmsg)
break;
}
}
else if (strncmp(endptr, "TB", 2) == 0)
{
endptr += 2;
switch (flags & GUC_UNIT_MEMORY)
{
case GUC_UNIT_KB:
val *= KB_PER_TB;
break;
case GUC_UNIT_BLOCKS:
val *= KB_PER_TB / (BLCKSZ / 1024);
break;
case GUC_UNIT_XBLOCKS:
val *= KB_PER_TB / (XLOG_BLCKSZ / 1024);
break;
}
}
}
else if (flags & GUC_UNIT_TIME)
{
@ -7384,7 +7401,12 @@ _ShowOption(struct config_generic * record, bool use_units)
break;
}
if (result % KB_PER_GB == 0)
if (result % KB_PER_TB == 0)
{
result /= KB_PER_TB;
unit = "TB";
}
else if (result % KB_PER_GB == 0)
{
result /= KB_PER_GB;
unit = "GB";