Add mysys specific error messages

Make RELAY_THREAD and alias for IO_THREAD
Added new interface for string -> (unsigned) long long.


include/my_sys.h:
  Add mysys specific error messages
sql/lex.h:
  Make RELAY_THREAD an alias for IO_THREAD
sql/sql_yacc.yy:
  Make RELAY_THREAD an alias for IO_THREAD

1 files changed, 237 insertions, 0 deletions

diff --git a/strings/my_strtoll10.c b/strings/my_strtoll10.c
new file mode 100644
index 00000000000..0bef961f770
--- /dev/null
+++ b/strings/my_strtoll10.c
@@ -0,0 +1,237 @@
+/* Copyright (C) 2003 MySQL AB
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
+#include <my_global.h>
+#include <m_string.h>
+
+#define ULONGLONG_MAX		(~(ulonglong) 0)
+#define MAX_NEGATIVE_NUMBER	((ulonglong) 0x8000000000000000LL)
+#define INIT_CNT  9
+#define LFACTOR   LL(1000000000)
+#define LFACTOR1  LL(10000000000)
+#define LFACTOR2  LL(100000000000)
+
+static unsigned long lfactor[9]=
+{
+  1L, 10L, 100L, 1000L, 10000L, 100000L, 1000000L, 10000000L, 100000000L
+};
+
+/*
+  Convert a string to an to unsigned long long integer value
+  
+  SYNOPSYS
+    str2ull10(char *nptr, char **enptr, *long error)
+      nptr     in       pointer to the string to be converted
+      endptr   in/out   pointer to the end of the string/
+                        pointer to the stop character
+      error    out      returned error code
+ 
+  DESCRIPTION
+    This function takes the decimal representation of integer number
+    from string nptr and converts it to an signed or unsigned
+    long long integer value.
+    Space characters and tab are ignored.
+    A sign character might precede the the digit characters. The number
+    may have any number of pre-zero digits.
+
+    The function stops reading the string nptr at the first character
+    that is not a decimal digit. If endptr is not NULL then the function
+    will not read characters after *endptr.
+ 
+  RETURN VALUES
+    Value of string as a signed/unsigned longlong integer
+
+    if no error and endptr != NULL, it will be set to point at the character
+    after the number
+
+    The error parameter contains information how things went:
+    -1		Number was an ok negative number
+    0	 	ok
+    ERANGE	If the the value of the converted number exceeded the
+	        maximum negative/unsigned long long integer.
+		In this case the return value is ~0 if value was
+		positive and LONGLONG_MIN if value was negative.
+    EDOM	If the string didn't contain any digits. In this case
+    		the return value is 0.
+
+    If endptr is not NULL the function will store the end pointer to
+    the stop character here.
+*/
+
+
+longlong my_strtoll10(const char *nptr, char **endptr, int *error)
+{
+  const char *s, *end, *start, *n_end, *true_end;
+  char *dummy;
+  unsigned char c;
+  unsigned long i, j, k;
+  ulonglong li;
+  int negative;
+  long cutoff, cutoff2, cutoff3;
+
+  s= nptr;
+  /* If fixed length string */
+  if (endptr)
+  {
+    end= *endptr;
+    while (s != end && (*s == ' ' || *s == '\t'))
+      s++;
+    if (s == end)
+      goto no_conv;
+  }
+  else
+  {
+    endptr= &dummy;				/* Easier end test */
+    while (*s == ' ' || *s == '\t')
+      s++;
+    if (!*s)
+      goto no_conv;
+    /* This number must be big to guard against a lot of pre-zeros */
+    end= s+65535;				/* Can't be longer than this */
+  }
+
+  /* Check for a sign.	*/
+  negative= 0;
+  if (*s == '-')
+  {
+    *error= -1;					/* Mark as negative number */
+    negative= 1;
+    if (++s == end)
+      goto no_conv;
+    cutoff=  MAX_NEGATIVE_NUMBER / LL(100000000000);
+    cutoff2= (MAX_NEGATIVE_NUMBER % LL(100000000000)) / 100;
+    cutoff3=  MAX_NEGATIVE_NUMBER % 100;
+  }
+  else
+  {
+    *error= 0;
+    if (*s == '+')
+    {
+      if (++s == end)
+	goto no_conv;
+    }
+    cutoff=  ULONGLONG_MAX / LL(100000000000);
+    cutoff2= ULONGLONG_MAX % LL(100000000000) / 100;
+    cutoff3=  ULONGLONG_MAX % 100;
+  }
+
+  /* Handle case where we have a lot of pre-zero */
+  if (*s == '0')
+  {
+    i= 0;
+    do
+    {
+      if (++s == end)
+	goto end_i;				/* Return 0 */
+    }
+    while (*s == '0');
+    n_end= s+ INIT_CNT;
+  }
+  else
+  {
+    /* Read first digit to check that it's a valid number */
+    if ((c= (*s-'0')) > 9)
+      goto no_conv;
+    i= c;
+    n_end= ++s+ INIT_CNT-1;
+  }
+
+  /* Handle first 9 digits and store them in i */
+  if (n_end > end)
+    n_end= end;
+  for (; s != n_end ; s++)
+  {
+    if ((c= (*s-'0')) > 9)
+      goto end_i;
+    i= i*10+c;
+  }
+  if (s == end)
+    goto end_i;
+
+  /* Handle next 9 digits and store them in j */
+  j= 0;
+  start= s;				/* Used to know how much to shift i */
+  n_end= true_end= s + INIT_CNT;
+  if (n_end > end)
+    n_end= end;
+  do
+  {
+    if ((c= (*s-'0')) > 9)
+      goto end_i_and_j;
+    j= j*10+c;
+  } while (++s != n_end);
+  if (s == end)
+  {
+    if (s != true_end)
+      goto end_i_and_j;
+    goto end3;
+  }
+  if ((c= (*s-'0')) > 9)
+    goto end3;
+
+  /* Handle the next 1 or 2 digits and store them in k */
+  k=c;
+  if (++s == end || (c= (*s-'0')) > 9)
+    goto end4;
+  k= k*10+c;
+  *endptr= (char*) ++s;
+
+  /* number string should have ended here */
+  if (s != end && (c= (*s-'0')) <= 9)
+    goto overflow;
+
+  /* Check that we didn't get an overflow with the last digit */
+  if (i > cutoff || i == cutoff && (j > cutoff2 || j == cutoff2 &&
+				    k > cutoff3))
+    goto overflow;
+  li=i*LFACTOR2+ (ulonglong) j*100 + k;
+  return (longlong) li;
+
+overflow:					/* *endptr is set here */
+  *error= MY_ERRNO_ERANGE;
+  return negative ? LONGLONG_MIN : ULONGLONG_MAX;
+
+end_i:
+  *endptr= (char*) s;
+  return (negative ? ((longlong) -(long) i) : (longlong) i);
+
+end_i_and_j:
+  li= (ulonglong) i * lfactor[(uint) (s-start)] + j;
+  *endptr= (char*) s;
+  return (negative ? -((longlong) li) : (longlong) li);
+
+end3:
+  li=(ulonglong) i*LFACTOR+ (ulonglong) j;
+  *endptr= (char*) s;
+  return (negative ? -((longlong) li) : (longlong) li);
+
+end4:
+  li=(ulonglong) i*LFACTOR1+ (ulonglong) j * 10 + k;
+  *endptr= (char*) s;
+  if (negative)
+  {
+   if (li > MAX_NEGATIVE_NUMBER)
+     goto overflow;
+   return -((longlong) li);
+  }
+  return (longlong) li;
+
+no_conv:
+  /* There was no number to convert.  */
+  *error= MY_ERRNO_EDOM;
+  *endptr= (char *) nptr;
+  return 0;
+}