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Merge recent performance enhancements and the CAST operator enhancements

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into the sessions branch.

FossilOrigin-Name: 08ae974ac80fabe53f515bbbd93ccf55de8ee671
This commit is contained in:
drh
2014-08-26 02:15:07 +00:00
parent 2571e4eddd 05bbb2e824
commit e1ed0b0e17
39 changed files with 966 additions and 782 deletions
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40
src/sqliteInt.h
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@@ -153,6 +153,18 @@
# define SQLITE_PTR_TO_INT(X) ((int)(X))
#endif
/*
** A macro to hint to the compiler that a function should not be
** inlined.
*/
#if defined(__GNUC__)
# define SQLITE_NOINLINE __attribute__((noinline))
#elif defined(_MSC_VER)
# define SQLITE_NOINLINE __declspec(noinline)
#else
# define SQLITE_NOINLINE
#endif
/*
** The SQLITE_THREADSAFE macro must be defined as 0, 1, or 2.
** 0 means mutexes are permanently disable and the library is never
@@ -3307,38 +3319,23 @@ u64 sqlite3LogEstToInt(LogEst);
/*
** Routines to read and write variable-length integers. These used to
** be defined locally, but now we use the varint routines in the util.c
** file. Code should use the MACRO forms below, as the Varint32 versions
** are coded to assume the single byte case is already handled (which
** the MACRO form does).
** file.
*/
int sqlite3PutVarint(unsigned char*, u64);
int sqlite3PutVarint32(unsigned char*, u32);
u8 sqlite3GetVarint(const unsigned char *, u64 *);
u8 sqlite3GetVarint32(const unsigned char *, u32 *);
int sqlite3VarintLen(u64 v);
/*
** The header of a record consists of a sequence variable-length integers.
** These integers are almost always small and are encoded as a single byte.
** The following macros take advantage this fact to provide a fast encode
** and decode of the integers in a record header. It is faster for the common
** case where the integer is a single byte. It is a little slower when the
** integer is two or more bytes. But overall it is faster.
**
** The following expressions are equivalent:
**
** x = sqlite3GetVarint32( A, &B );
** x = sqlite3PutVarint32( A, B );
**
** x = getVarint32( A, B );
** x = putVarint32( A, B );
**
** The common case is for a varint to be a single byte. They following
** macros handle the common case without a procedure call, but then call
** the procedure for larger varints.
*/
#define getVarint32(A,B) \
(u8)((*(A)<(u8)0x80)?((B)=(u32)*(A)),1:sqlite3GetVarint32((A),(u32 *)&(B)))
#define putVarint32(A,B) \
(u8)(((u32)(B)<(u32)0x80)?(*(A)=(unsigned char)(B)),1:\
sqlite3PutVarint32((A),(B)))
sqlite3PutVarint((A),(B)))
#define getVarint sqlite3GetVarint
#define putVarint sqlite3PutVarint
@@ -3350,7 +3347,8 @@ int sqlite3IndexAffinityOk(Expr *pExpr, char idx_affinity);
char sqlite3ExprAffinity(Expr *pExpr);
int sqlite3Atoi64(const char*, i64*, int, u8);
int sqlite3DecOrHexToI64(const char*, i64*);
void sqlite3Error(sqlite3*, int, const char*,...);
void sqlite3ErrorWithMsg(sqlite3*, int, const char*,...);
void sqlite3Error(sqlite3*,int);
void *sqlite3HexToBlob(sqlite3*, const char *z, int n);
u8 sqlite3HexToInt(int h);
int sqlite3TwoPartName(Parse *, Token *, Token *, Token **);