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Data Structures | Macros | Typedefs | Functions

libpq-be-fe.h File Reference

#include "libpq-fe.h"

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Data Structures

struct libpqsrv_PGresult

Macros

#define PGresult libpqsrv_PGresult

#define PQclear libpqsrv_PQclear

#define PQgetResult libpqsrv_PQgetResult

#define PQresultStatus libpqsrv_PQresultStatus

#define PQresultErrorMessage libpqsrv_PQresultErrorMessage

#define PQresultErrorField libpqsrv_PQresultErrorField

#define PQcmdStatus libpqsrv_PQcmdStatus

#define PQntuples libpqsrv_PQntuples

#define PQnfields libpqsrv_PQnfields

#define PQgetvalue libpqsrv_PQgetvalue

#define PQgetlength libpqsrv_PQgetlength

#define PQgetisnull libpqsrv_PQgetisnull

#define PQfname libpqsrv_PQfname

#define PQcmdTuples libpqsrv_PQcmdTuples

Typedefs

typedef struct libpqsrv_PGresult libpqsrv_PGresult

Functions

static libpqsrv_PGresult * libpqsrv_PQwrap (PGresult *res)

static void libpqsrv_PQclear (libpqsrv_PGresult *bres)

static libpqsrv_PGresult * libpqsrv_PGresultSetParent (libpqsrv_PGresult *bres, MemoryContext ctx)

static libpqsrv_PGresult * libpqsrv_PQgetResult (PGconn *conn)

static ExecStatusType libpqsrv_PQresultStatus (const libpqsrv_PGresult *res)

static const char * libpqsrv_PQresultErrorMessage (const libpqsrv_PGresult *res)

static char * libpqsrv_PQresultErrorField (const libpqsrv_PGresult *res, int fieldcode)

static char * libpqsrv_PQcmdStatus (const libpqsrv_PGresult *res)

static int libpqsrv_PQntuples (const libpqsrv_PGresult *res)

static int libpqsrv_PQnfields (const libpqsrv_PGresult *res)

static char * libpqsrv_PQgetvalue (const libpqsrv_PGresult *res, int tup_num, int field_num)

static int libpqsrv_PQgetlength (const libpqsrv_PGresult *res, int tup_num, int field_num)

static int libpqsrv_PQgetisnull (const libpqsrv_PGresult *res, int tup_num, int field_num)

static char * libpqsrv_PQfname (const libpqsrv_PGresult *res, int field_num)

static const char * libpqsrv_PQcmdTuples (const libpqsrv_PGresult *res)

Macro Definition Documentation

◆ PGresult

#define PGresult libpqsrv_PGresult

Definition at line 244 of file libpq-be-fe.h.

◆ PQclear

#define PQclear libpqsrv_PQclear

Definition at line 245 of file libpq-be-fe.h.

◆ PQcmdStatus

#define PQcmdStatus libpqsrv_PQcmdStatus

Definition at line 250 of file libpq-be-fe.h.

◆ PQcmdTuples

#define PQcmdTuples libpqsrv_PQcmdTuples

Definition at line 257 of file libpq-be-fe.h.

◆ PQfname

#define PQfname libpqsrv_PQfname

Definition at line 256 of file libpq-be-fe.h.

◆ PQgetisnull

#define PQgetisnull libpqsrv_PQgetisnull

Definition at line 255 of file libpq-be-fe.h.

◆ PQgetlength

#define PQgetlength libpqsrv_PQgetlength

Definition at line 254 of file libpq-be-fe.h.

◆ PQgetResult

#define PQgetResult libpqsrv_PQgetResult

Definition at line 246 of file libpq-be-fe.h.

◆ PQgetvalue

#define PQgetvalue libpqsrv_PQgetvalue

Definition at line 253 of file libpq-be-fe.h.

◆ PQnfields

#define PQnfields libpqsrv_PQnfields

Definition at line 252 of file libpq-be-fe.h.

◆ PQntuples

#define PQntuples libpqsrv_PQntuples

Definition at line 251 of file libpq-be-fe.h.

◆ PQresultErrorField

#define PQresultErrorField libpqsrv_PQresultErrorField

Definition at line 249 of file libpq-be-fe.h.

◆ PQresultErrorMessage

#define PQresultErrorMessage libpqsrv_PQresultErrorMessage

Definition at line 248 of file libpq-be-fe.h.

◆ PQresultStatus

#define PQresultStatus libpqsrv_PQresultStatus

Definition at line 247 of file libpq-be-fe.h.

Typedef Documentation

◆ libpqsrv_PGresult

typedef struct libpqsrv_PGresult libpqsrv_PGresult

Function Documentation

◆ libpqsrv_PGresultSetParent()

static libpqsrv_PGresult * libpqsrv_PGresultSetParent ( libpqsrv_PGresult * bres,

MemoryContext ctx

)

inlinestatic

Definition at line 109 of file libpq-be-fe.h.

110{

111 libpqsrv_PGresult *newres;

112

113 /* We pass through a NULL result as-is */

114 if (bres == NULL)

115 return NULL;

116 /* Make a new wrapper in the target context, raising error on OOM */

117 newres = (libpqsrv_PGresult *)

118 MemoryContextAlloc(ctx, sizeof(libpqsrv_PGresult));

119 /* Okay, set up the new wrapper */

120 newres->res = bres->res;

121 newres->ctx = ctx;

122 newres->cb.func = (MemoryContextCallbackFunction) PQclear;

123 newres->cb.arg = bres->res;

124 MemoryContextRegisterResetCallback(ctx, &newres->cb);

125 /* Disarm and delete the old wrapper */

126 MemoryContextUnregisterResetCallback(bres->ctx, &bres->cb);

127 pfree(bres);

128 return newres;

129}

PQclear

#define PQclear

Definition: libpq-be-fe.h:245

MemoryContextUnregisterResetCallback

void MemoryContextUnregisterResetCallback(MemoryContext context, MemoryContextCallback *cb)

Definition: mcxt.c:604

MemoryContextAlloc

void * MemoryContextAlloc(MemoryContext context, Size size)

Definition: mcxt.c:1229

MemoryContextRegisterResetCallback

void MemoryContextRegisterResetCallback(MemoryContext context, MemoryContextCallback *cb)

Definition: mcxt.c:579

pfree

void pfree(void *pointer)

Definition: mcxt.c:1594

MemoryContextCallbackFunction

void(* MemoryContextCallbackFunction)(void *arg)

Definition: palloc.h:45

MemoryContextCallback::arg

void * arg

Definition: palloc.h:50

MemoryContextCallback::func

MemoryContextCallbackFunction func

Definition: palloc.h:49

libpqsrv_PGresult

Definition: libpq-be-fe.h:45

libpqsrv_PGresult::cb

MemoryContextCallback cb

Definition: libpq-be-fe.h:48

libpqsrv_PGresult::ctx

MemoryContext ctx

Definition: libpq-be-fe.h:47

libpqsrv_PGresult::res

PGresult * res

Definition: libpq-be-fe.h:46

References MemoryContextCallback::arg, libpqsrv_PGresult::cb, libpqsrv_PGresult::ctx, MemoryContextCallback::func, MemoryContextAlloc(), MemoryContextRegisterResetCallback(), MemoryContextUnregisterResetCallback(), pfree(), PQclear, and libpqsrv_PGresult::res.

Referenced by execute_dml_stmt().

◆ libpqsrv_PQclear()

static void libpqsrv_PQclear ( libpqsrv_PGresult * bres )

inlinestatic

Definition at line 95 of file libpq-be-fe.h.

96{

97 if (bres)

98 {

99 MemoryContextUnregisterResetCallback(bres->ctx, &bres->cb);

100 PQclear(bres->res);

101 pfree(bres);

102 }

103}

References libpqsrv_PGresult::cb, libpqsrv_PGresult::ctx, MemoryContextUnregisterResetCallback(), pfree(), PQclear, and libpqsrv_PGresult::res.

◆ libpqsrv_PQcmdStatus()

static char * libpqsrv_PQcmdStatus ( const libpqsrv_PGresult * res )

inlinestatic

Definition at line 175 of file libpq-be-fe.h.

176{

177 if (!res)

178 return NULL;

179 return PQcmdStatus(res->res);

180}

PQcmdStatus

#define PQcmdStatus

Definition: libpq-be-fe.h:250

References PQcmdStatus, and libpqsrv_PGresult::res.

◆ libpqsrv_PQcmdTuples()

static const char * libpqsrv_PQcmdTuples ( const libpqsrv_PGresult * res )

inlinestatic

Definition at line 231 of file libpq-be-fe.h.

232{

233 if (!res)

234 return "";

235 return PQcmdTuples(res->res);

236}

PQcmdTuples

#define PQcmdTuples

Definition: libpq-be-fe.h:257

References PQcmdTuples, and libpqsrv_PGresult::res.

◆ libpqsrv_PQfname()

static char * libpqsrv_PQfname ( const libpqsrv_PGresult * res,

int field_num

)

inlinestatic

Definition at line 223 of file libpq-be-fe.h.

224{

225 if (!res)

226 return NULL;

227 return PQfname(res->res, field_num);

228}

PQfname

#define PQfname

Definition: libpq-be-fe.h:256

References PQfname, and libpqsrv_PGresult::res.

◆ libpqsrv_PQgetisnull()

static int libpqsrv_PQgetisnull ( const libpqsrv_PGresult * res,

int tup_num,

int field_num

)

inlinestatic

Definition at line 215 of file libpq-be-fe.h.

216{

217 if (!res)

218 return 1; /* pretend it is null */

219 return PQgetisnull(res->res, tup_num, field_num);

220}

PQgetisnull

#define PQgetisnull

Definition: libpq-be-fe.h:255

References PQgetisnull, and libpqsrv_PGresult::res.

◆ libpqsrv_PQgetlength()

static int libpqsrv_PQgetlength ( const libpqsrv_PGresult * res,

int tup_num,

int field_num

)

inlinestatic

Definition at line 207 of file libpq-be-fe.h.

208{

209 if (!res)

210 return 0;

211 return PQgetlength(res->res, tup_num, field_num);

212}

PQgetlength

#define PQgetlength

Definition: libpq-be-fe.h:254

References PQgetlength, and libpqsrv_PGresult::res.

◆ libpqsrv_PQgetResult()

static libpqsrv_PGresult * libpqsrv_PQgetResult ( PGconn * conn )

inlinestatic

Definition at line 138 of file libpq-be-fe.h.

139{

140 return libpqsrv_PQwrap(PQgetResult(conn));

141}

PQgetResult

#define PQgetResult

Definition: libpq-be-fe.h:246

libpqsrv_PQwrap

static libpqsrv_PGresult * libpqsrv_PQwrap(PGresult *res)

Definition: libpq-be-fe.h:60

conn

PGconn * conn

Definition: streamutil.c:52

References conn, libpqsrv_PQwrap(), and PQgetResult.

◆ libpqsrv_PQgetvalue()

static char * libpqsrv_PQgetvalue ( const libpqsrv_PGresult * res,

int tup_num,

int field_num

)

inlinestatic

Definition at line 199 of file libpq-be-fe.h.

200{

201 if (!res)

202 return NULL;

203 return PQgetvalue(res->res, tup_num, field_num);

204}

PQgetvalue

#define PQgetvalue

Definition: libpq-be-fe.h:253

References PQgetvalue, and libpqsrv_PGresult::res.

◆ libpqsrv_PQnfields()

static int libpqsrv_PQnfields ( const libpqsrv_PGresult * res )

inlinestatic

Definition at line 191 of file libpq-be-fe.h.

192{

193 if (!res)

194 return 0;

195 return PQnfields(res->res);

196}

PQnfields

#define PQnfields

Definition: libpq-be-fe.h:252

References PQnfields, and libpqsrv_PGresult::res.

◆ libpqsrv_PQntuples()

static int libpqsrv_PQntuples ( const libpqsrv_PGresult * res )

inlinestatic

Definition at line 183 of file libpq-be-fe.h.

184{

185 if (!res)

186 return 0;

187 return PQntuples(res->res);

188}

PQntuples

#define PQntuples

Definition: libpq-be-fe.h:251

References PQntuples, and libpqsrv_PGresult::res.

◆ libpqsrv_PQresultErrorField()

static char * libpqsrv_PQresultErrorField ( const libpqsrv_PGresult * res,

int fieldcode

)

inlinestatic

Definition at line 167 of file libpq-be-fe.h.

168{

169 if (!res)

170 return NULL;

171 return PQresultErrorField(res->res, fieldcode);

172}

PQresultErrorField

#define PQresultErrorField

Definition: libpq-be-fe.h:249

References PQresultErrorField, and libpqsrv_PGresult::res.

◆ libpqsrv_PQresultErrorMessage()

static const char * libpqsrv_PQresultErrorMessage ( const libpqsrv_PGresult * res )

inlinestatic

Definition at line 159 of file libpq-be-fe.h.

160{

161 if (!res)

162 return "";

163 return PQresultErrorMessage(res->res);

164}

PQresultErrorMessage

#define PQresultErrorMessage

Definition: libpq-be-fe.h:248

References PQresultErrorMessage, and libpqsrv_PGresult::res.

◆ libpqsrv_PQresultStatus()

static ExecStatusType libpqsrv_PQresultStatus ( const libpqsrv_PGresult * res )

inlinestatic

Definition at line 151 of file libpq-be-fe.h.

152{

153 if (!res)

154 return PGRES_FATAL_ERROR;

155 return PQresultStatus(res->res);

156}

PQresultStatus

#define PQresultStatus

Definition: libpq-be-fe.h:247

PGRES_FATAL_ERROR

@ PGRES_FATAL_ERROR

Definition: libpq-fe.h:136

References PGRES_FATAL_ERROR, PQresultStatus, and libpqsrv_PGresult::res.

◆ libpqsrv_PQwrap()

static libpqsrv_PGresult * libpqsrv_PQwrap ( PGresult * res )

inlinestatic

Definition at line 60 of file libpq-be-fe.h.

61{

62 libpqsrv_PGresult *bres;

63 MemoryContext ctx = CurrentMemoryContext;

64

65 /* We pass through a NULL result as-is, since there's nothing to free */

66 if (res == NULL)

67 return NULL;

68 /* Attempt to allocate the wrapper ... this had better not throw error */

69 bres = (libpqsrv_PGresult *)

70 MemoryContextAllocExtended(ctx,

71 sizeof(libpqsrv_PGresult),

72 MCXT_ALLOC_NO_OOM);

73 /* If we failed to allocate a wrapper, free the PGresult before failing */

74 if (bres == NULL)

75 {

76 PQclear(res);

77 ereport(ERROR,

78 (errcode(ERRCODE_OUT_OF_MEMORY),

79 errmsg("out of memory")));

80 }

81 /* Okay, set up the wrapper */

82 bres->res = res;

83 bres->ctx = ctx;

84 bres->cb.func = (MemoryContextCallbackFunction) PQclear;

85 bres->cb.arg = res;

86 MemoryContextRegisterResetCallback(ctx, &bres->cb);

87 return bres;

88}

errcode

int errcode(int sqlerrcode)

Definition: elog.c:854

errmsg

int errmsg(const char *fmt,...)

Definition: elog.c:1071

ERROR

#define ERROR

Definition: elog.h:39

ereport

#define ereport(elevel,...)

Definition: elog.h:150

MCXT_ALLOC_NO_OOM

#define MCXT_ALLOC_NO_OOM

Definition: fe_memutils.h:29

CurrentMemoryContext

MemoryContext CurrentMemoryContext

Definition: mcxt.c:160

MemoryContextAllocExtended

void * MemoryContextAllocExtended(MemoryContext context, Size size, int flags)

Definition: mcxt.c:1286

MemoryContextData

Definition: memnodes.h:118

References MemoryContextCallback::arg, libpqsrv_PGresult::cb, libpqsrv_PGresult::ctx, CurrentMemoryContext, ereport, errcode(), errmsg(), ERROR, MemoryContextCallback::func, MCXT_ALLOC_NO_OOM, MemoryContextAllocExtended(), MemoryContextRegisterResetCallback(), PQclear, and libpqsrv_PGresult::res.

Referenced by libpqsrv_PQgetResult().