Index: third_party/sqlite/sqlite-src-3070603/src/vdbe.h |
diff --git a/third_party/sqlite/sqlite-src-3070603/src/vdbe.h b/third_party/sqlite/sqlite-src-3070603/src/vdbe.h |
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+/* |
+** 2001 September 15 |
+** |
+** The author disclaims copyright to this source code. In place of |
+** a legal notice, here is a blessing: |
+** |
+** May you do good and not evil. |
+** May you find forgiveness for yourself and forgive others. |
+** May you share freely, never taking more than you give. |
+** |
+************************************************************************* |
+** Header file for the Virtual DataBase Engine (VDBE) |
+** |
+** This header defines the interface to the virtual database engine |
+** or VDBE. The VDBE implements an abstract machine that runs a |
+** simple program to access and modify the underlying database. |
+*/ |
+#ifndef _SQLITE_VDBE_H_ |
+#define _SQLITE_VDBE_H_ |
+#include <stdio.h> |
+ |
+/* |
+** A single VDBE is an opaque structure named "Vdbe". Only routines |
+** in the source file sqliteVdbe.c are allowed to see the insides |
+** of this structure. |
+*/ |
+typedef struct Vdbe Vdbe; |
+ |
+/* |
+** The names of the following types declared in vdbeInt.h are required |
+** for the VdbeOp definition. |
+*/ |
+typedef struct VdbeFunc VdbeFunc; |
+typedef struct Mem Mem; |
+typedef struct SubProgram SubProgram; |
+ |
+/* |
+** A single instruction of the virtual machine has an opcode |
+** and as many as three operands. The instruction is recorded |
+** as an instance of the following structure: |
+*/ |
+struct VdbeOp { |
+ u8 opcode; /* What operation to perform */ |
+ signed char p4type; /* One of the P4_xxx constants for p4 */ |
+ u8 opflags; /* Mask of the OPFLG_* flags in opcodes.h */ |
+ u8 p5; /* Fifth parameter is an unsigned character */ |
+ int p1; /* First operand */ |
+ int p2; /* Second parameter (often the jump destination) */ |
+ int p3; /* The third parameter */ |
+ union { /* fourth parameter */ |
+ int i; /* Integer value if p4type==P4_INT32 */ |
+ void *p; /* Generic pointer */ |
+ char *z; /* Pointer to data for string (char array) types */ |
+ i64 *pI64; /* Used when p4type is P4_INT64 */ |
+ double *pReal; /* Used when p4type is P4_REAL */ |
+ FuncDef *pFunc; /* Used when p4type is P4_FUNCDEF */ |
+ VdbeFunc *pVdbeFunc; /* Used when p4type is P4_VDBEFUNC */ |
+ CollSeq *pColl; /* Used when p4type is P4_COLLSEQ */ |
+ Mem *pMem; /* Used when p4type is P4_MEM */ |
+ VTable *pVtab; /* Used when p4type is P4_VTAB */ |
+ KeyInfo *pKeyInfo; /* Used when p4type is P4_KEYINFO */ |
+ int *ai; /* Used when p4type is P4_INTARRAY */ |
+ SubProgram *pProgram; /* Used when p4type is P4_SUBPROGRAM */ |
+ } p4; |
+#ifdef SQLITE_DEBUG |
+ char *zComment; /* Comment to improve readability */ |
+#endif |
+#ifdef VDBE_PROFILE |
+ int cnt; /* Number of times this instruction was executed */ |
+ u64 cycles; /* Total time spent executing this instruction */ |
+#endif |
+}; |
+typedef struct VdbeOp VdbeOp; |
+ |
+ |
+/* |
+** A sub-routine used to implement a trigger program. |
+*/ |
+struct SubProgram { |
+ VdbeOp *aOp; /* Array of opcodes for sub-program */ |
+ int nOp; /* Elements in aOp[] */ |
+ int nMem; /* Number of memory cells required */ |
+ int nCsr; /* Number of cursors required */ |
+ void *token; /* id that may be used to recursive triggers */ |
+ SubProgram *pNext; /* Next sub-program already visited */ |
+}; |
+ |
+/* |
+** A smaller version of VdbeOp used for the VdbeAddOpList() function because |
+** it takes up less space. |
+*/ |
+struct VdbeOpList { |
+ u8 opcode; /* What operation to perform */ |
+ signed char p1; /* First operand */ |
+ signed char p2; /* Second parameter (often the jump destination) */ |
+ signed char p3; /* Third parameter */ |
+}; |
+typedef struct VdbeOpList VdbeOpList; |
+ |
+/* |
+** Allowed values of VdbeOp.p4type |
+*/ |
+#define P4_NOTUSED 0 /* The P4 parameter is not used */ |
+#define P4_DYNAMIC (-1) /* Pointer to a string obtained from sqliteMalloc() */ |
+#define P4_STATIC (-2) /* Pointer to a static string */ |
+#define P4_COLLSEQ (-4) /* P4 is a pointer to a CollSeq structure */ |
+#define P4_FUNCDEF (-5) /* P4 is a pointer to a FuncDef structure */ |
+#define P4_KEYINFO (-6) /* P4 is a pointer to a KeyInfo structure */ |
+#define P4_VDBEFUNC (-7) /* P4 is a pointer to a VdbeFunc structure */ |
+#define P4_MEM (-8) /* P4 is a pointer to a Mem* structure */ |
+#define P4_TRANSIENT 0 /* P4 is a pointer to a transient string */ |
+#define P4_VTAB (-10) /* P4 is a pointer to an sqlite3_vtab structure */ |
+#define P4_MPRINTF (-11) /* P4 is a string obtained from sqlite3_mprintf() */ |
+#define P4_REAL (-12) /* P4 is a 64-bit floating point value */ |
+#define P4_INT64 (-13) /* P4 is a 64-bit signed integer */ |
+#define P4_INT32 (-14) /* P4 is a 32-bit signed integer */ |
+#define P4_INTARRAY (-15) /* P4 is a vector of 32-bit integers */ |
+#define P4_SUBPROGRAM (-18) /* P4 is a pointer to a SubProgram structure */ |
+ |
+/* When adding a P4 argument using P4_KEYINFO, a copy of the KeyInfo structure |
+** is made. That copy is freed when the Vdbe is finalized. But if the |
+** argument is P4_KEYINFO_HANDOFF, the passed in pointer is used. It still |
+** gets freed when the Vdbe is finalized so it still should be obtained |
+** from a single sqliteMalloc(). But no copy is made and the calling |
+** function should *not* try to free the KeyInfo. |
+*/ |
+#define P4_KEYINFO_HANDOFF (-16) |
+#define P4_KEYINFO_STATIC (-17) |
+ |
+/* |
+** The Vdbe.aColName array contains 5n Mem structures, where n is the |
+** number of columns of data returned by the statement. |
+*/ |
+#define COLNAME_NAME 0 |
+#define COLNAME_DECLTYPE 1 |
+#define COLNAME_DATABASE 2 |
+#define COLNAME_TABLE 3 |
+#define COLNAME_COLUMN 4 |
+#ifdef SQLITE_ENABLE_COLUMN_METADATA |
+# define COLNAME_N 5 /* Number of COLNAME_xxx symbols */ |
+#else |
+# ifdef SQLITE_OMIT_DECLTYPE |
+# define COLNAME_N 1 /* Store only the name */ |
+# else |
+# define COLNAME_N 2 /* Store the name and decltype */ |
+# endif |
+#endif |
+ |
+/* |
+** The following macro converts a relative address in the p2 field |
+** of a VdbeOp structure into a negative number so that |
+** sqlite3VdbeAddOpList() knows that the address is relative. Calling |
+** the macro again restores the address. |
+*/ |
+#define ADDR(X) (-1-(X)) |
+ |
+/* |
+** The makefile scans the vdbe.c source file and creates the "opcodes.h" |
+** header file that defines a number for each opcode used by the VDBE. |
+*/ |
+#include "opcodes.h" |
+ |
+/* |
+** Prototypes for the VDBE interface. See comments on the implementation |
+** for a description of what each of these routines does. |
+*/ |
+Vdbe *sqlite3VdbeCreate(sqlite3*); |
+int sqlite3VdbeAddOp0(Vdbe*,int); |
+int sqlite3VdbeAddOp1(Vdbe*,int,int); |
+int sqlite3VdbeAddOp2(Vdbe*,int,int,int); |
+int sqlite3VdbeAddOp3(Vdbe*,int,int,int,int); |
+int sqlite3VdbeAddOp4(Vdbe*,int,int,int,int,const char *zP4,int); |
+int sqlite3VdbeAddOp4Int(Vdbe*,int,int,int,int,int); |
+int sqlite3VdbeAddOpList(Vdbe*, int nOp, VdbeOpList const *aOp); |
+void sqlite3VdbeChangeP1(Vdbe*, int addr, int P1); |
+void sqlite3VdbeChangeP2(Vdbe*, int addr, int P2); |
+void sqlite3VdbeChangeP3(Vdbe*, int addr, int P3); |
+void sqlite3VdbeChangeP5(Vdbe*, u8 P5); |
+void sqlite3VdbeJumpHere(Vdbe*, int addr); |
+void sqlite3VdbeChangeToNoop(Vdbe*, int addr, int N); |
+void sqlite3VdbeChangeP4(Vdbe*, int addr, const char *zP4, int N); |
+void sqlite3VdbeUsesBtree(Vdbe*, int); |
+VdbeOp *sqlite3VdbeGetOp(Vdbe*, int); |
+int sqlite3VdbeMakeLabel(Vdbe*); |
+void sqlite3VdbeRunOnlyOnce(Vdbe*); |
+void sqlite3VdbeDelete(Vdbe*); |
+void sqlite3VdbeDeleteObject(sqlite3*,Vdbe*); |
+void sqlite3VdbeMakeReady(Vdbe*,int,int,int,int,int,int); |
+int sqlite3VdbeFinalize(Vdbe*); |
+void sqlite3VdbeResolveLabel(Vdbe*, int); |
+int sqlite3VdbeCurrentAddr(Vdbe*); |
+#ifdef SQLITE_DEBUG |
+ int sqlite3VdbeAssertMayAbort(Vdbe *, int); |
+ void sqlite3VdbeTrace(Vdbe*,FILE*); |
+#endif |
+void sqlite3VdbeResetStepResult(Vdbe*); |
+int sqlite3VdbeReset(Vdbe*); |
+void sqlite3VdbeSetNumCols(Vdbe*,int); |
+int sqlite3VdbeSetColName(Vdbe*, int, int, const char *, void(*)(void*)); |
+void sqlite3VdbeCountChanges(Vdbe*); |
+sqlite3 *sqlite3VdbeDb(Vdbe*); |
+void sqlite3VdbeSetSql(Vdbe*, const char *z, int n, int); |
+void sqlite3VdbeSwap(Vdbe*,Vdbe*); |
+VdbeOp *sqlite3VdbeTakeOpArray(Vdbe*, int*, int*); |
+sqlite3_value *sqlite3VdbeGetValue(Vdbe*, int, u8); |
+void sqlite3VdbeSetVarmask(Vdbe*, int); |
+#ifndef SQLITE_OMIT_TRACE |
+ char *sqlite3VdbeExpandSql(Vdbe*, const char*); |
+#endif |
+ |
+UnpackedRecord *sqlite3VdbeRecordUnpack(KeyInfo*,int,const void*,char*,int); |
+void sqlite3VdbeDeleteUnpackedRecord(UnpackedRecord*); |
+int sqlite3VdbeRecordCompare(int,const void*,UnpackedRecord*); |
+ |
+#ifndef SQLITE_OMIT_TRIGGER |
+void sqlite3VdbeLinkSubProgram(Vdbe *, SubProgram *); |
+#endif |
+ |
+ |
+#ifndef NDEBUG |
+ void sqlite3VdbeComment(Vdbe*, const char*, ...); |
+# define VdbeComment(X) sqlite3VdbeComment X |
+ void sqlite3VdbeNoopComment(Vdbe*, const char*, ...); |
+# define VdbeNoopComment(X) sqlite3VdbeNoopComment X |
+#else |
+# define VdbeComment(X) |
+# define VdbeNoopComment(X) |
+#endif |
+ |
+#endif |