void check_bitoperations()
{
uint64 n;
unsigned int i, j;
/* check the CLEARNEXTBIT macro: clear bits in n one by one and check result */
/* if problems occure here: wrong architecture? or perhaps BSR instead of BSF?*/
n = UINT64CONST(0xffffffffffffffff);
for (i = 0; i < 64; i++)
{
CLEARNEXTBIT(n, j);
ASSERT(i == j);
}
ASSERT(n == 0);
}
/*
* ean2string --- Try to convert an ean13 number to a hyphenated string.
* Assumes there's enough space in result to hold
* the string (maximum MAXEAN13LEN+1 bytes)
* This doesn't verify for a valid check digit.
*
* If shortType is true, the returned string is in the old ISxN short format.
* If errorOK is false, ereport a useful error message if the string is bad.
* If errorOK is true, just return "false" for bad input.
*/
static bool
ean2string(ean13 ean, bool errorOK, char *result, bool shortType)
{
const char *(*TABLE)[2];
const unsigned (*TABLE_index)[2];
enum isn_type type = INVALID;
char *aux;
unsigned digval;
unsigned search;
char valid = '\0'; /* was the number initially written with a
* valid check digit? */
TABLE_index = ISBN_index;
if ((ean & 1) != 0)
valid = '!';
ean >>= 1;
/* verify it's in the EAN13 range */
if (ean > UINT64CONST(9999999999999))
goto eantoobig;
/* convert the number */
search = 0;
aux = result + MAXEAN13LEN;
*aux = '\0'; /* terminate string; aux points to last digit */
*--aux = valid; /* append '!' for numbers with invalid but
* corrected check digit */
do
{
digval = (unsigned) (ean % 10); /* get the decimal value */
ean /= 10; /* get next digit */
*--aux = (char) (digval + '0'); /* convert to ascii and store */
if (search == 0)
*--aux = '-'; /* the check digit is always there */
} while (ean && search++ < 13);
while (search++ < 13)
*--aux = '0'; /* fill the remaining EAN13 with '0' */
/* The string should be in this form: ???DDDDDDDDDDDD-D" */
search = hyphenate(result, result + 3, EAN13_range, EAN13_index);
/* verify it's a logically valid EAN13 */
if (search == 0)
{
search = hyphenate(result, result + 3, NULL, NULL);
goto okay;
}
/* find out what type of hyphenation is needed: */
if (strncmp("978-", result, search) == 0)
{ /* ISBN -13 978-range */
/* The string should be in this form: 978-??000000000-0" */
type = ISBN;
TABLE = ISBN_range;
TABLE_index = ISBN_index;
}
else if (strncmp("977-", result, search) == 0)
{ /* ISSN */
/* The string should be in this form: 977-??000000000-0" */
type = ISSN;
TABLE = ISSN_range;
TABLE_index = ISSN_index;
}
else if (strncmp("979-0", result, search + 1) == 0)
{ /* ISMN */
/* The string should be in this form: 979-0?000000000-0" */
type = ISMN;
TABLE = ISMN_range;
TABLE_index = ISMN_index;
}
else if (strncmp("979-", result, search) == 0)
{ /* ISBN-13 979-range */
/* The string should be in this form: 979-??000000000-0" */
type = ISBN;
TABLE = ISBN_range_new;
TABLE_index = ISBN_index_new;
}
else if (*result == '0')
{ /* UPC */
/* The string should be in this form: 000-00000000000-0" */
type = UPC;
TABLE = UPC_range;
TABLE_index = UPC_index;
}
else
{
type = EAN13;
TABLE = NULL;
TABLE_index = NULL;
}
/* verify it's a logically valid EAN13/UPC/ISxN */
digval = search;
search = hyphenate(result + digval, result + digval + 2, TABLE, TABLE_index);
/* verify it's a valid EAN13 */
if (search == 0)
{
search = hyphenate(result + digval, result + digval + 2, NULL, NULL);
goto okay;
}
okay:
/* convert to the old short type: */
if (shortType)
switch (type)
{
case ISBN:
ean2ISBN(result);
break;
case ISMN:
ean2ISMN(result);
break;
case ISSN:
ean2ISSN(result);
break;
case UPC:
ean2UPC(result);
break;
default:
break;
}
return true;
eantoobig:
if (!errorOK)
{
char eanbuf[64];
/*
* Format the number separately to keep the machine-dependent format
* code out of the translatable message text
*/
snprintf(eanbuf, sizeof(eanbuf), EAN13_FORMAT, ean);
ereport(ERROR,
(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("value \"%s\" is out of range for %s type",
eanbuf, isn_names[type])));
}
return false;
}
/*
* ean2isn --- Try to convert an ean13 number to a UPC/ISxN number.
* This doesn't verify for a valid check digit.
*
* If errorOK is false, ereport a useful error message if the ean13 is bad.
* If errorOK is true, just return "false" for bad input.
*/
static bool
ean2isn(ean13 ean, bool errorOK, ean13 *result, enum isn_type accept)
{
enum isn_type type = INVALID;
char buf[MAXEAN13LEN + 1];
char *aux;
unsigned digval;
unsigned search;
ean13 ret = ean;
ean >>= 1;
/* verify it's in the EAN13 range */
if (ean > UINT64CONST(9999999999999))
goto eantoobig;
/* convert the number */
search = 0;
aux = buf + 13;
*aux = '\0'; /* terminate string; aux points to last digit */
do
{
digval = (unsigned) (ean % 10); /* get the decimal value */
ean /= 10; /* get next digit */
*--aux = (char) (digval + '0'); /* convert to ascii and store */
} while (ean && search++ < 12);
while (search++ < 12)
*--aux = '0'; /* fill the remaining EAN13 with '0' */
/* find out the data type: */
if (strncmp("978", buf, 3) == 0)
{ /* ISBN */
type = ISBN;
}
else if (strncmp("977", buf, 3) == 0)
{ /* ISSN */
type = ISSN;
}
else if (strncmp("9790", buf, 4) == 0)
{ /* ISMN */
type = ISMN;
}
else if (strncmp("979", buf, 3) == 0)
{ /* ISBN-13 */
type = ISBN;
}
else if (*buf == '0')
{ /* UPC */
type = UPC;
}
else
{
type = EAN13;
}
if (accept != ANY && accept != EAN13 && accept != type)
goto eanwrongtype;
*result = ret;
return true;
eanwrongtype:
if (!errorOK)
{
if (type != EAN13)
{
ereport(ERROR,
(errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
errmsg("cannot cast EAN13(%s) to %s for number: \"%s\"",
isn_names[type], isn_names[accept], buf)));
}
else
{
ereport(ERROR,
(errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
errmsg("cannot cast %s to %s for number: \"%s\"",
isn_names[type], isn_names[accept], buf)));
}
}
return false;
eantoobig:
if (!errorOK)
{
char eanbuf[64];
/*
* Format the number separately to keep the machine-dependent format
* code out of the translatable message text
*/
snprintf(eanbuf, sizeof(eanbuf), EAN13_FORMAT, ean);
ereport(ERROR,
(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("value \"%s\" is out of range for %s type",
eanbuf, isn_names[type])));
}
return false;
}
}
tz->tz_minuteswest = _timezone / 60;
tz->tz_dsttime = _daylight;
}
return (0);
}
#else
/* Postgresql's implement */
/* FILETIME of Jan 1 1970 00:00:00. */
# if 0
#define UINT64CONST (x) ((__int64) x)
static const unsigned __int64 epoch = UINT64CONST(116444736000000000);
# endif
static const unsigned __int64 epoch = 116444736000000000LL;
/*
* timezone information is stored outside the kernel so tzp isn't used anymore.
*
* Note: this function is not for Win32 high precision timing purpose. See
* elapsed_time().
*/
int gettimeofday(struct timeval * tp, struct timezone * tzp)
{
FILETIME file_time;
SYSTEMTIME system_time;
ULARGE_INTEGER ularge;
0xF7021977, 0xB5F2F89C,
0x3BD0BCE5, 0x79205D0E,
0xBE317F32, 0xFCC19ED9,
0x86B86ED5, 0xC4488F3E,
0x0359AD02, 0x41A94CE9,
0xCF8B0890, 0x8D7BE97B,
0x4A6ACB47, 0x089A2AAC,
0x14DEA25F, 0x562E43B4,
0x913F6188, 0xD3CF8063,
0x5DEDC41A, 0x1F1D25F1,
0xD80C07CD, 0x9AFCE626
};
#else /* int64 works */
const uint64 pg_crc64_table[256] = {
UINT64CONST(0x0000000000000000), UINT64CONST(0x42F0E1EBA9EA3693),
UINT64CONST(0x85E1C3D753D46D26), UINT64CONST(0xC711223CFA3E5BB5),
UINT64CONST(0x493366450E42ECDF), UINT64CONST(0x0BC387AEA7A8DA4C),
UINT64CONST(0xCCD2A5925D9681F9), UINT64CONST(0x8E224479F47CB76A),
UINT64CONST(0x9266CC8A1C85D9BE), UINT64CONST(0xD0962D61B56FEF2D),
UINT64CONST(0x17870F5D4F51B498), UINT64CONST(0x5577EEB6E6BB820B),
UINT64CONST(0xDB55AACF12C73561), UINT64CONST(0x99A54B24BB2D03F2),
UINT64CONST(0x5EB4691841135847), UINT64CONST(0x1C4488F3E8F96ED4),
UINT64CONST(0x663D78FF90E185EF), UINT64CONST(0x24CD9914390BB37C),
UINT64CONST(0xE3DCBB28C335E8C9), UINT64CONST(0xA12C5AC36ADFDE5A),
UINT64CONST(0x2F0E1EBA9EA36930), UINT64CONST(0x6DFEFF5137495FA3),
UINT64CONST(0xAAEFDD6DCD770416), UINT64CONST(0xE81F3C86649D3285),
UINT64CONST(0xF45BB4758C645C51), UINT64CONST(0xB6AB559E258E6AC2),
UINT64CONST(0x71BA77A2DFB03177), UINT64CONST(0x334A9649765A07E4),
UINT64CONST(0xBD68D2308226B08E), UINT64CONST(0xFF9833DB2BCC861D),
UINT64CONST(0x388911E7D1F2DDA8), UINT64CONST(0x7A79F00C7818EB3B),
/*
* Scan existing XLOG files and determine the highest existing WAL address
*
* On entry, ControlFile.checkPointCopy.redo and ControlFile.xlog_seg_size
* are assumed valid (note that we allow the old xlog seg size to differ
* from what we're using). On exit, newXlogId and newXlogSeg are set to
* suitable values for the beginning of replacement WAL (in our seg size).
*/
static void
FindEndOfXLOG(void)
{
DIR *xldir;
struct dirent *xlde;
uint64 segs_per_xlogid;
uint64 xlogbytepos;
/*
* Initialize the max() computation using the last checkpoint address from
* old pg_control. Note that for the moment we are working with segment
* numbering according to the old xlog seg size.
*/
segs_per_xlogid = (UINT64CONST(0x0000000100000000) / ControlFile.xlog_seg_size);
newXlogSegNo = ControlFile.checkPointCopy.redo / ControlFile.xlog_seg_size;
/*
* Scan the pg_xlog directory to find existing WAL segment files. We
* assume any present have been used; in most scenarios this should be
* conservative, because of xlog.c's attempts to pre-create files.
*/
xldir = opendir(XLOGDIR);
if (xldir == NULL)
{
fprintf(stderr, _("%s: could not open directory \"%s\": %s\n"),
progname, XLOGDIR, strerror(errno));
exit(1);
}
while (errno = 0, (xlde = readdir(xldir)) != NULL)
{
if (strlen(xlde->d_name) == 24 &&
strspn(xlde->d_name, "0123456789ABCDEF") == 24)
{
unsigned int tli,
log,
seg;
XLogSegNo segno;
sscanf(xlde->d_name, "%08X%08X%08X", &tli, &log, &seg);
segno = ((uint64) log) * segs_per_xlogid + seg;
/*
* Note: we take the max of all files found, regardless of their
* timelines. Another possibility would be to ignore files of
* timelines other than the target TLI, but this seems safer.
* Better too large a result than too small...
*/
if (segno > newXlogSegNo)
newXlogSegNo = segno;
}
}
if (errno)
{
fprintf(stderr, _("%s: could not read directory \"%s\": %s\n"),
progname, XLOGDIR, strerror(errno));
exit(1);
}
if (closedir(xldir))
{
fprintf(stderr, _("%s: could not close directory \"%s\": %s\n"),
progname, XLOGDIR, strerror(errno));
exit(1);
}
/*
* Finally, convert to new xlog seg size, and advance by one to ensure we
* are in virgin territory.
*/
xlogbytepos = newXlogSegNo * ControlFile.xlog_seg_size;
newXlogSegNo = (xlogbytepos + XLogSegSize - 1) / XLogSegSize;
newXlogSegNo++;
}
