copyfuncs.c File Reference (original) (raw)

#include "[postgres.h](postgres%5F8h%5Fsource.html)"
#include "[miscadmin.h](miscadmin%5F8h%5Fsource.html)"
#include "[utils/datum.h](datum%5F8h%5Fsource.html)"
#include "copyfuncs.funcs.c"
#include "copyfuncs.switch.c"

Go to the source code of this file.

Macros
#define	COPY_SCALAR_FIELD(fldname) (newnode->fldname = from->fldname)

#define	COPY_NODE_FIELD(fldname) (newnode->fldname = copyObjectImpl(from->fldname))

#define	COPY_BITMAPSET_FIELD(fldname) (newnode->fldname = bms_copy(from->fldname))

#define	COPY_STRING_FIELD(fldname) (newnode->fldname = from->fldname ? pstrdup(from->fldname) : NULL)

#define	COPY_ARRAY_FIELD(fldname) memcpy(newnode->fldname, from->fldname, sizeof(newnode->fldname))

#define	COPY_POINTER_FIELD(fldname, sz)

#define	COPY_LOCATION_FIELD(fldname) (newnode->fldname = from->fldname)

Functions
static Const *	_copyConst (const Const *from)

static A_Const *	_copyA_Const (const A_Const *from)

static ExtensibleNode *	_copyExtensibleNode (const ExtensibleNode *from)

static Bitmapset *	_copyBitmapset (const Bitmapset *from)

void *	copyObjectImpl (const void *from)

◆ COPY_ARRAY_FIELD

| #define COPY_ARRAY_FIELD | ( | | fldname | ) | memcpy(newnode->fldname, from->fldname, sizeof(newnode->fldname)) | | -------------------------- | - | | ------- | - | ----------------------------------------------------------------- |

◆ COPY_BITMAPSET_FIELD

| #define COPY_BITMAPSET_FIELD | ( | | fldname | ) | (newnode->fldname = bms_copy(from->fldname)) | | ------------------------------ | - | | ------- | - | ------------------------------------------------------------------------------------------------------ |

◆ COPY_LOCATION_FIELD

| #define COPY_LOCATION_FIELD | ( | | fldname | ) | (newnode->fldname = from->fldname) | | ----------------------------- | - | | ------- | - | ---------------------------------- |

◆ COPY_NODE_FIELD

| #define COPY_NODE_FIELD | ( | | fldname | ) | (newnode->fldname = copyObjectImpl(from->fldname)) | | ------------------------- | - | | ------- | - | ------------------------------------------------------------------------------------------------------- |

◆ COPY_POINTER_FIELD

| #define COPY_POINTER_FIELD | ( | | fldname, | | ---------------------------- | - | | -------- | | | sz | | | | | ) | | | |

Value:

do { \

Size _size = (sz); \

if (_size > 0) \

{ \

newnode->fldname = palloc(_size); \

memcpy(newnode->fldname, from->fldname, _size); \

} \

} while (0)

Definition at line 50 of file copyfuncs.c.

◆ COPY_SCALAR_FIELD

| #define COPY_SCALAR_FIELD | ( | | fldname | ) | (newnode->fldname = from->fldname) | | --------------------------- | - | | ------- | - | ---------------------------------- |

◆ COPY_STRING_FIELD

| #define COPY_STRING_FIELD | ( | | fldname | ) | (newnode->fldname = from->fldname ? pstrdup(from->fldname) : NULL) | | --------------------------- | - | | ------- | - | ------------------------------------------------------------------------------------------------------------------------ |

◆ _copyA_Const()

Definition at line 108 of file copyfuncs.c.

109{

111

114 {

115

118 {

119 case T_Integer:

121 break;

122 case T_Float:

124 break;

125 case T_Boolean:

127 break;

128 case T_String:

130 break;

131 case T_BitString:

133 break;

134 default:

135 elog(ERROR, "unrecognized node type: %d",

137 break;

138 }

139 }

140

142

143 return newnode;

144}

#define COPY_LOCATION_FIELD(fldname)

#define COPY_STRING_FIELD(fldname)

#define COPY_SCALAR_FIELD(fldname)

References COPY_LOCATION_FIELD, COPY_SCALAR_FIELD, COPY_STRING_FIELD, elog, ERROR, A_Const::isnull, makeNode, nodeTag, A_Const::val, and val.

◆ _copyBitmapset()

◆ _copyConst()

static Const * _copyConst ( const Const * from)	static

Definition at line 73 of file copyfuncs.c.

74{

82 if (from->constbyval || from->constisnull)

83 {

88 newnode->constvalue = from->constvalue;

89 }

90 else

91 {

95 newnode->constvalue = datumCopy(from->constvalue,

96 from->constbyval,

97 from->constlen);

98 }

103

104 return newnode;

105}

Datum datumCopy(Datum value, bool typByVal, int typLen)

References COPY_LOCATION_FIELD, COPY_SCALAR_FIELD, datumCopy(), and makeNode.

◆ _copyExtensibleNode()

◆ copyObjectImpl()

void * copyObjectImpl	(	const void *	from	)

Definition at line 177 of file copyfuncs.c.

178{

179 void *retval;

180

181 if (from == NULL)

182 return NULL;

183

184

186

188 {

189#include "copyfuncs.switch.c"

190

191 case T_List:

193 break;

194

195

196

197

198

199 case T_IntList:

200 case T_OidList:

201 case T_XidList:

203 break;

204

205 default:

206 elog(ERROR, "unrecognized node type: %d", (int) nodeTag(from));

207 retval = 0;

208 break;

209 }

210

211 return retval;

212}

List * list_copy_deep(const List *oldlist)

List * list_copy(const List *oldlist)

void check_stack_depth(void)

References check_stack_depth(), elog, ERROR, list_copy(), list_copy_deep(), and nodeTag.

Referenced by list_copy_deep().