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ChangeSet@stripped, 2007-03-23 19:54:22+00:00, lzhou@dev3-63.(none) +2 -0
BUG#26986 Correct insert and select operation of BIT(33) on solaris.
ndb/include/util/Bitmask.hpp@stripped, 2007-03-23 19:54:17+00:00, lzhou@dev3-63.(none) +31 -7
Modify setField and getField to copy right value to bits on solaris.
ndb/src/common/util/Bitmask.cpp@stripped, 2007-03-23 19:54:17+00:00, lzhou@dev3-63.(none) +67 -10
Modify getFieldImpl and setFieldImpl to copy right value to bits on solaris
# This is a BitKeeper patch. What follows are the unified diffs for the
# set of deltas contained in the patch. The rest of the patch, the part
# that BitKeeper cares about, is below these diffs.
# User: lzhou
# Host: dev3-63.(none)
# Root: /home/zhl/mysql/mysql-5.0/bug26986
--- 1.11/ndb/src/common/util/Bitmask.cpp 2007-03-23 19:54:38 +00:00
+++ 1.12/ndb/src/common/util/Bitmask.cpp 2007-03-23 19:54:38 +00:00
@@ -20,36 +20,59 @@
void
BitmaskImpl::getFieldImpl(const Uint32 src[],
- unsigned shiftL, unsigned len, Uint32 dst[])
+ unsigned shiftL, unsigned len, Uint32 dst[], bool reverse)
{
assert(shiftL < 32);
unsigned shiftR = 32 - shiftL;
unsigned undefined = shiftL ? ~0 : 0;
- * dst = shiftL ? * dst : 0;
-
+ if(reverse)
+ {
+ if(shiftL == 0)
+ dst[0] = 0;
+ }
+ else
+ * dst = shiftL ? * dst : 0;
+
while(len >= 32)
{
- * dst++ |= (* src) << shiftL;
- * dst = ((* src++) >> shiftR) & undefined;
+ if(reverse && (shiftL != 0))
+ dst[1] |= (* src) << shiftL;
+ else
+ * dst++ |= (* src) << shiftL;
+
+ if(shiftL != 0)
+ * dst = ((* src++) >> shiftR) & undefined;
+
len -= 32;
}
+ if(len == 0)
+ return;
+
if(len < shiftR)
{
* dst |= ((* src) & ((1 << len) - 1)) << shiftL;
}
+ else if(len == shiftR)
+ {
+ * dst |= ((* src) << shiftL);
+ }
else
{
- * dst++ |= ((* src) << shiftL);
+ if(reverse)
+ dst[1] |= ((* src) << shiftL);
+ else
+ * dst++ |= ((* src) << shiftL);
+
* dst = ((* src) >> shiftR) & ((1 << (len - shiftR)) - 1) & undefined;
}
}
void
BitmaskImpl::setFieldImpl(Uint32 dst[],
- unsigned shiftL, unsigned len, const Uint32 src[])
+ unsigned shiftL, unsigned len, const Uint32 src[], bool reverse)
{
/**
*
@@ -59,25 +82,59 @@ BitmaskImpl::setFieldImpl(Uint32 dst[],
assert(shiftL < 32);
unsigned shiftR = 32 - shiftL;
unsigned undefined = shiftL ? ~0 : 0;
+
while(len >= 32)
{
- * dst = (* src++) >> shiftL;
- * dst++ |= ((* src) << shiftR) & undefined;
+ if(reverse && (shiftL != 0))
+ * dst = (src[1]) >> shiftL;
+ else
+ * dst = (* src++) >> shiftL;
+
+ if(shiftL != 0)
+ * dst++ |= ((* src) << shiftR) & undefined;
+
len -= 32;
}
+ if(len == 0)
+ return;
+
Uint32 mask = ((1 << len) -1);
* dst = (* dst & ~mask);
if(len < shiftR)
{
* dst |= ((* src++) >> shiftL) & mask;
}
- else
+ else if(len == shiftR)
{
* dst |= ((* src++) >> shiftL);
+ }
+ else
+ {
+ if(reverse)
+ * dst |= ((src[1]) >> shiftL);
+ else
+ * dst |= ((* src++) >> shiftL);
+
* dst |= ((* src) & ((1 << (len - shiftR)) - 1)) << shiftR ;
}
}
+
+Uint32
+BitmaskImpl::checkEndian()
+{
+//ndbout_c("david: enter checkEndian");
+ union
+ {
+ long l;
+ char c[sizeof(long)];
+ } endian_check;
+
+ endian_check.l = 1;
+
+ return (endian_check.c[sizeof(long)-1]);
+}
+
#else
static
--- 1.18/ndb/include/util/Bitmask.hpp 2007-03-23 19:54:38 +00:00
+++ 1.19/ndb/include/util/Bitmask.hpp 2007-03-23 19:54:38 +00:00
@@ -148,8 +148,9 @@ public:
*/
static char* getText(unsigned size, const Uint32 data[], char* buf);
private:
- static void getFieldImpl(const Uint32 data[], unsigned, unsigned, Uint32 []);
- static void setFieldImpl(Uint32 data[], unsigned, unsigned, const Uint32 []);
+ static void getFieldImpl(const Uint32 data[], unsigned, unsigned, Uint32 [], bool reverse = false);
+ static void setFieldImpl(Uint32 data[], unsigned, unsigned, const Uint32 [], bool reverse = false);
+ static Uint32 checkEndian();
};
inline bool
@@ -815,17 +816,29 @@ BitmaskImpl::getField(unsigned size, con
{
assert(pos + len <= (size << 5));
+ bool bigEndian = checkEndian();
+ bool reverse = 0;
src += (pos >> 5);
Uint32 offset = pos & 31;
- * dst = (* src >> offset) & (len >= 32 ? ~0 : (1 << len) - 1);
-
+
+ if(bigEndian && (len > 32))
+ reverse = 1;
+
+ if(reverse)
+ dst[1] = (* src >> offset) & (len >= 32 ? ~0 : (1 << len) - 1);
+ else
+ * dst = (* src >> offset) & (len >= 32 ? ~0 : (1 << len) - 1);
+
if(offset + len <= 32)
{
return;
}
Uint32 used = (32 - offset);
assert(len > used);
- getFieldImpl(src+1, used & 31, len-used, dst+(used >> 5));
+ if(reverse)
+ getFieldImpl(src+1, used & 31, len-used, dst, reverse);
+ else
+ getFieldImpl(src+1, used & 31, len-used, dst+(used >> 5));
}
inline void
@@ -834,11 +847,19 @@ BitmaskImpl::setField(unsigned size, Uin
{
assert(pos + len <= (size << 5));
+ bool bigEndian = checkEndian();
+ bool reverse = 0;
dst += (pos >> 5);
Uint32 offset = pos & 31;
Uint32 mask = (len >= 32 ? ~0 : (1 << len) - 1) << offset;
- * dst = (* dst & ~mask) | ((*src << offset) & mask);
+ if(bigEndian && (len > 32))
+ reverse = 1;
+
+ if(reverse)
+ * dst = (* dst & ~mask) | ((src[1] << offset) & mask);
+ else
+ * dst = (* dst & ~mask) | ((*src << offset) & mask);
if(offset + len <= 32)
{
@@ -846,7 +867,10 @@ BitmaskImpl::setField(unsigned size, Uin
}
Uint32 used = (32 - offset);
assert(len > used);
- setFieldImpl(dst+1, used & 31, len-used, src+(used >> 5));
+ if(reverse)
+ setFieldImpl(dst+1, used & 31, len-used, src , reverse);
+ else
+ setFieldImpl(dst+1, used & 31, len-used, src+(used >> 5));
}
| Thread |
|---|
| • bk commit into 5.0 tree (lzhou:1.2470) BUG#26986 | lzhou | 23 Mar |
