--- win32/sql/pgsql/include/libpq-fe.h 2001/09/21 15:47:56 1.1 +++ win32/sql/pgsql/include/libpq-fe.h 2007/01/26 10:08:55 1.2 @@ -4,10 +4,10 @@ * This file contains definitions for structures and * externs for functions used by frontend postgres applications. * - * Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group + * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: libpq-fe.h,v 1.1 2001/09/21 15:47:56 parser Exp $ + * $Id: libpq-fe.h,v 1.2 2007/01/26 10:08:55 misha Exp $ * *------------------------------------------------------------------------- */ @@ -21,79 +21,106 @@ extern "C" #endif #include -/* postgres_ext.h defines the backend's externally visible types, + +/* + * postgres_ext.h defines the backend's externally visible types, * such as Oid. */ #include "postgres_ext.h" + +/* SSL type is needed here only to declare PQgetssl() */ #ifdef USE_SSL #include #endif /* Application-visible enum types */ - typedef enum - { +typedef enum +{ + /* + * Although it is okay to add to this list, values which become unused + * should never be removed, nor should constants be redefined - that + * would break compatibility with existing code. + */ + CONNECTION_OK, + CONNECTION_BAD, + /* Non-blocking mode only below here */ - /* - * Although you may decide to change this list in some way, values - * which become unused should never be removed, nor should - * constants be redefined - that would break compatibility with - * existing code. - */ - CONNECTION_OK, - CONNECTION_BAD, - /* Non-blocking mode only below here */ - - /* - * The existence of these should never be relied upon - they - * should only be used for user feedback or similar purposes. - */ - CONNECTION_STARTED, /* Waiting for connection to be made. */ - CONNECTION_MADE, /* Connection OK; waiting to send. */ - CONNECTION_AWAITING_RESPONSE, /* Waiting for a response from the + /* + * The existence of these should never be relied upon - they should + * only be used for user feedback or similar purposes. + */ + CONNECTION_STARTED, /* Waiting for connection to be made. */ + CONNECTION_MADE, /* Connection OK; waiting to send. */ + CONNECTION_AWAITING_RESPONSE, /* Waiting for a response from the * postmaster. */ - CONNECTION_AUTH_OK, /* Received authentication; waiting for + CONNECTION_AUTH_OK, /* Received authentication; waiting for * backend startup. */ - CONNECTION_SETENV /* Negotiating environment. */ - } ConnStatusType; + CONNECTION_SETENV, /* Negotiating environment. */ + CONNECTION_SSL_STARTUP, /* Negotiating SSL. */ + CONNECTION_NEEDED /* Internal state: connect() needed */ +} ConnStatusType; - typedef enum - { - PGRES_POLLING_FAILED = 0, - PGRES_POLLING_READING, /* These two indicate that one may */ - PGRES_POLLING_WRITING, /* use select before polling again. */ - PGRES_POLLING_OK, - PGRES_POLLING_ACTIVE /* Can call poll function immediately. */ - } PostgresPollingStatusType; +typedef enum +{ + PGRES_POLLING_FAILED = 0, + PGRES_POLLING_READING, /* These two indicate that one may */ + PGRES_POLLING_WRITING, /* use select before polling again. */ + PGRES_POLLING_OK, + PGRES_POLLING_ACTIVE /* unused; keep for awhile for backwards + * compatibility */ +} PostgresPollingStatusType; - typedef enum - { - PGRES_EMPTY_QUERY = 0, - PGRES_COMMAND_OK, /* a query command that doesn't return +typedef enum +{ + PGRES_EMPTY_QUERY = 0, /* empty query string was executed */ + PGRES_COMMAND_OK, /* a query command that doesn't return * anything was executed properly by the * backend */ - PGRES_TUPLES_OK, /* a query command that returns tuples was + PGRES_TUPLES_OK, /* a query command that returns tuples was * executed properly by the backend, * PGresult contains the result tuples */ - PGRES_COPY_OUT, /* Copy Out data transfer in progress */ - PGRES_COPY_IN, /* Copy In data transfer in progress */ - PGRES_BAD_RESPONSE, /* an unexpected response was recv'd from + PGRES_COPY_OUT, /* Copy Out data transfer in progress */ + PGRES_COPY_IN, /* Copy In data transfer in progress */ + PGRES_BAD_RESPONSE, /* an unexpected response was recv'd from * the backend */ - PGRES_NONFATAL_ERROR, - PGRES_FATAL_ERROR - } ExecStatusType; + PGRES_NONFATAL_ERROR, /* notice or warning message */ + PGRES_FATAL_ERROR /* query failed */ +} ExecStatusType; + +typedef enum +{ + PQTRANS_IDLE, /* connection idle */ + PQTRANS_ACTIVE, /* command in progress */ + PQTRANS_INTRANS, /* idle, within transaction block */ + PQTRANS_INERROR, /* idle, within failed transaction */ + PQTRANS_UNKNOWN /* cannot determine status */ +} PGTransactionStatusType; + +typedef enum +{ + PQERRORS_TERSE, /* single-line error messages */ + PQERRORS_DEFAULT, /* recommended style */ + PQERRORS_VERBOSE /* all the facts, ma'am */ +} PGVerbosity; /* PGconn encapsulates a connection to the backend. * The contents of this struct are not supposed to be known to applications. */ - typedef struct pg_conn PGconn; +typedef struct pg_conn PGconn; /* PGresult encapsulates the result of a query (or more precisely, of a single * SQL command --- a query string given to PQsendQuery can contain multiple * commands and thus return multiple PGresult objects). * The contents of this struct are not supposed to be known to applications. */ - typedef struct pg_result PGresult; +typedef struct pg_result PGresult; + +/* PGcancel encapsulates the information needed to cancel a running + * query on an existing connection. + * The contents of this struct are not supposed to be known to applications. + */ +typedef struct pg_cancel PGcancel; /* PGnotify represents the occurrence of a NOTIFY message. * Ideally this would be an opaque typedef, but it's so simple that it's @@ -101,35 +128,37 @@ extern "C" * NOTE: in Postgres 6.4 and later, the be_pid is the notifying backend's, * whereas in earlier versions it was always your own backend's PID. */ - typedef struct pgNotify - { - char relname[NAMEDATALEN]; /* name of relation - * containing data */ - int be_pid; /* process id of backend */ - } PGnotify; - -/* PQnoticeProcessor is the function type for the notice-message callback. - */ - typedef void (*PQnoticeProcessor) (void *arg, const char *message); +typedef struct pgNotify +{ + char *relname; /* notification condition name */ + int be_pid; /* process ID of server process */ + char *extra; /* notification parameter */ + /* Fields below here are private to libpq; apps should not use 'em */ + struct pgNotify *next; /* list link */ +} PGnotify; + +/* Function types for notice-handling callbacks */ +typedef void (*PQnoticeReceiver) (void *arg, const PGresult *res); +typedef void (*PQnoticeProcessor) (void *arg, const char *message); /* Print options for PQprint() */ - typedef char pqbool; +typedef char pqbool; - typedef struct _PQprintOpt - { - pqbool header; /* print output field headings and row +typedef struct _PQprintOpt +{ + pqbool header; /* print output field headings and row * count */ - pqbool align; /* fill align the fields */ - pqbool standard; /* old brain dead format */ - pqbool html3; /* output html tables */ - pqbool expanded; /* expand tables */ - pqbool pager; /* use pager for output if needed */ - char *fieldSep; /* field separator */ - char *tableOpt; /* insert to HTML */ - char *caption; /* HTML
*/ - char **fieldName; /* null terminated array of repalcement + pqbool align; /* fill align the fields */ + pqbool standard; /* old brain dead format */ + pqbool html3; /* output html tables */ + pqbool expanded; /* expand tables */ + pqbool pager; /* use pager for output if needed */ + char *fieldSep; /* field separator */ + char *tableOpt; /* insert to HTML */ + char *caption; /* HTML
*/ + char **fieldName; /* null terminated array of repalcement * field names */ - } PQprintOpt; +} PQprintOpt; /* ---------------- * Structure for the conninfo parameter definitions returned by PQconndefaults @@ -139,35 +168,35 @@ extern "C" * will release both the val strings and the PQconninfoOption array itself. * ---------------- */ - typedef struct _PQconninfoOption - { - char *keyword; /* The keyword of the option */ - char *envvar; /* Fallback environment variable name */ - char *compiled; /* Fallback compiled in default value */ - char *val; /* Option's current value, or NULL */ - char *label; /* Label for field in connect dialog */ - char *dispchar; /* Character to display for this field in +typedef struct _PQconninfoOption +{ + char *keyword; /* The keyword of the option */ + char *envvar; /* Fallback environment variable name */ + char *compiled; /* Fallback compiled in default value */ + char *val; /* Option's current value, or NULL */ + char *label; /* Label for field in connect dialog */ + char *dispchar; /* Character to display for this field in * a connect dialog. Values are: "" * Display entered value as is "*" * Password field - hide value "D" Debug * option - don't show by default */ - int dispsize; /* Field size in characters for dialog */ - } PQconninfoOption; + int dispsize; /* Field size in characters for dialog */ +} PQconninfoOption; /* ---------------- * PQArgBlock -- structure for PQfn() arguments * ---------------- */ - typedef struct +typedef struct +{ + int len; + int isint; + union { - int len; - int isint; - union - { - int *ptr; /* can't use void (dec compiler barfs) */ - int integer; - } u; - } PQArgBlock; + int *ptr; /* can't use void (dec compiler barfs) */ + int integer; + } u; +} PQArgBlock; /* ---------------- * Exported functions of libpq @@ -176,189 +205,306 @@ extern "C" /* === in fe-connect.c === */ - /* make a new client connection to the backend */ - /* Asynchronous (non-blocking) */ - extern PGconn *PQconnectStart(const char *conninfo); - extern PostgresPollingStatusType PQconnectPoll(PGconn *conn); - /* Synchronous (blocking) */ - extern PGconn *PQconnectdb(const char *conninfo); - extern PGconn *PQsetdbLogin(const char *pghost, const char *pgport, - const char *pgoptions, const char *pgtty, - const char *dbName, - const char *login, const char *pwd); +/* make a new client connection to the backend */ +/* Asynchronous (non-blocking) */ +extern PGconn *PQconnectStart(const char *conninfo); +extern PostgresPollingStatusType PQconnectPoll(PGconn *conn); + +/* Synchronous (blocking) */ +extern PGconn *PQconnectdb(const char *conninfo); +extern PGconn *PQsetdbLogin(const char *pghost, const char *pgport, + const char *pgoptions, const char *pgtty, + const char *dbName, + const char *login, const char *pwd); + #define PQsetdb(M_PGHOST,M_PGPORT,M_PGOPT,M_PGTTY,M_DBNAME) \ PQsetdbLogin(M_PGHOST, M_PGPORT, M_PGOPT, M_PGTTY, M_DBNAME, NULL, NULL) - /* close the current connection and free the PGconn data structure */ - extern void PQfinish(PGconn *conn); +/* close the current connection and free the PGconn data structure */ +extern void PQfinish(PGconn *conn); - /* get info about connection options known to PQconnectdb */ - extern PQconninfoOption *PQconndefaults(void); +/* get info about connection options known to PQconnectdb */ +extern PQconninfoOption *PQconndefaults(void); - /* free the data structure returned by PQconndefaults() */ - extern void PQconninfoFree(PQconninfoOption *connOptions); +/* free the data structure returned by PQconndefaults() */ +extern void PQconninfoFree(PQconninfoOption *connOptions); + +/* + * close the current connection and restablish a new one with the same + * parameters + */ +/* Asynchronous (non-blocking) */ +extern int PQresetStart(PGconn *conn); +extern PostgresPollingStatusType PQresetPoll(PGconn *conn); + +/* Synchronous (blocking) */ +extern void PQreset(PGconn *conn); + +/* request a cancel structure */ +extern PGcancel *PQgetCancel(PGconn *conn); + +/* free a cancel structure */ +extern void PQfreeCancel(PGcancel *cancel); + +/* issue a cancel request */ +extern int PQcancel(PGcancel *cancel, char *errbuf, int errbufsize); + +/* backwards compatible version of PQcancel; not thread-safe */ +extern int PQrequestCancel(PGconn *conn); + +/* Accessor functions for PGconn objects */ +extern char *PQdb(const PGconn *conn); +extern char *PQuser(const PGconn *conn); +extern char *PQpass(const PGconn *conn); +extern char *PQhost(const PGconn *conn); +extern char *PQport(const PGconn *conn); +extern char *PQtty(const PGconn *conn); +extern char *PQoptions(const PGconn *conn); +extern ConnStatusType PQstatus(const PGconn *conn); +extern PGTransactionStatusType PQtransactionStatus(const PGconn *conn); +extern const char *PQparameterStatus(const PGconn *conn, + const char *paramName); +extern int PQprotocolVersion(const PGconn *conn); +extern int PQserverVersion(const PGconn *conn); +extern char *PQerrorMessage(const PGconn *conn); +extern int PQsocket(const PGconn *conn); +extern int PQbackendPID(const PGconn *conn); +extern int PQclientEncoding(const PGconn *conn); +extern int PQsetClientEncoding(PGconn *conn, const char *encoding); - /* - * close the current connection and restablish a new one with the same - * parameters - */ - /* Asynchronous (non-blocking) */ - extern int PQresetStart(PGconn *conn); - extern PostgresPollingStatusType PQresetPoll(PGconn *conn); - /* Synchronous (blocking) */ - extern void PQreset(PGconn *conn); - - /* issue a cancel request */ - extern int PQrequestCancel(PGconn *conn); - - /* Accessor functions for PGconn objects */ - extern char *PQdb(const PGconn *conn); - extern char *PQuser(const PGconn *conn); - extern char *PQpass(const PGconn *conn); - extern char *PQhost(const PGconn *conn); - extern char *PQport(const PGconn *conn); - extern char *PQtty(const PGconn *conn); - extern char *PQoptions(const PGconn *conn); - extern ConnStatusType PQstatus(const PGconn *conn); - extern char *PQerrorMessage(const PGconn *conn); - extern int PQsocket(const PGconn *conn); - extern int PQbackendPID(const PGconn *conn); - extern int PQclientEncoding(const PGconn *conn); - extern int PQsetClientEncoding(PGconn *conn, const char *encoding); #ifdef USE_SSL - /* Get the SSL structure associated with a connection */ - extern SSL *PQgetssl(PGconn *conn); +/* Get the SSL structure associated with a connection */ +extern SSL *PQgetssl(PGconn *conn); +#else +extern void *PQgetssl(PGconn *conn); #endif +/* Tell libpq whether it needs to initialize OpenSSL */ +extern void PQinitSSL(int do_init); + +/* Set verbosity for PQerrorMessage and PQresultErrorMessage */ +extern PGVerbosity PQsetErrorVerbosity(PGconn *conn, PGVerbosity verbosity); - /* Enable/disable tracing */ - extern void PQtrace(PGconn *conn, FILE *debug_port); - extern void PQuntrace(PGconn *conn); +/* Enable/disable tracing */ +extern void PQtrace(PGconn *conn, FILE *debug_port); +extern void PQuntrace(PGconn *conn); + +/* Override default notice handling routines */ +extern PQnoticeReceiver PQsetNoticeReceiver(PGconn *conn, + PQnoticeReceiver proc, + void *arg); +extern PQnoticeProcessor PQsetNoticeProcessor(PGconn *conn, + PQnoticeProcessor proc, + void *arg); + +/* + * Used to set callback that prevents concurrent access to + * non-thread safe functions that libpq needs. + * The default implementation uses a libpq internal mutex. + * Only required for multithreaded apps that use kerberos + * both within their app and for postgresql connections. + */ +typedef void (*pgthreadlock_t) (int acquire); - /* Override default notice processor */ - extern PQnoticeProcessor PQsetNoticeProcessor(PGconn *conn, PQnoticeProcessor proc, void *arg); +extern pgthreadlock_t PQregisterThreadLock(pgthreadlock_t newhandler); /* === in fe-exec.c === */ - /* Simple synchronous query */ - extern PGresult *PQexec(PGconn *conn, const char *query); - extern PGnotify *PQnotifies(PGconn *conn); - - /* Interface for multiple-result or asynchronous queries */ - extern int PQsendQuery(PGconn *conn, const char *query); - extern PGresult *PQgetResult(PGconn *conn); - - /* Routines for managing an asychronous query */ - extern int PQisBusy(PGconn *conn); - extern int PQconsumeInput(PGconn *conn); - - /* Routines for copy in/out */ - extern int PQgetline(PGconn *conn, char *string, int length); - extern int PQputline(PGconn *conn, const char *string); - extern int PQgetlineAsync(PGconn *conn, char *buffer, int bufsize); - extern int PQputnbytes(PGconn *conn, const char *buffer, int nbytes); - extern int PQendcopy(PGconn *conn); - - /* Set blocking/nonblocking connection to the backend */ - extern int PQsetnonblocking(PGconn *conn, int arg); - extern int PQisnonblocking(const PGconn *conn); +/* Simple synchronous query */ +extern PGresult *PQexec(PGconn *conn, const char *query); +extern PGresult *PQexecParams(PGconn *conn, + const char *command, + int nParams, + const Oid *paramTypes, + const char *const * paramValues, + const int *paramLengths, + const int *paramFormats, + int resultFormat); +extern PGresult *PQprepare(PGconn *conn, const char *stmtName, + const char *query, int nParams, + const Oid *paramTypes); +extern PGresult *PQexecPrepared(PGconn *conn, + const char *stmtName, + int nParams, + const char *const * paramValues, + const int *paramLengths, + const int *paramFormats, + int resultFormat); + +/* Interface for multiple-result or asynchronous queries */ +extern int PQsendQuery(PGconn *conn, const char *query); +extern int PQsendQueryParams(PGconn *conn, + const char *command, + int nParams, + const Oid *paramTypes, + const char *const * paramValues, + const int *paramLengths, + const int *paramFormats, + int resultFormat); +extern int PQsendPrepare(PGconn *conn, const char *stmtName, + const char *query, int nParams, + const Oid *paramTypes); +extern int PQsendQueryPrepared(PGconn *conn, + const char *stmtName, + int nParams, + const char *const * paramValues, + const int *paramLengths, + const int *paramFormats, + int resultFormat); +extern PGresult *PQgetResult(PGconn *conn); + +/* Routines for managing an asynchronous query */ +extern int PQisBusy(PGconn *conn); +extern int PQconsumeInput(PGconn *conn); + +/* LISTEN/NOTIFY support */ +extern PGnotify *PQnotifies(PGconn *conn); + +/* Routines for copy in/out */ +extern int PQputCopyData(PGconn *conn, const char *buffer, int nbytes); +extern int PQputCopyEnd(PGconn *conn, const char *errormsg); +extern int PQgetCopyData(PGconn *conn, char **buffer, int async); + +/* Deprecated routines for copy in/out */ +extern int PQgetline(PGconn *conn, char *string, int length); +extern int PQputline(PGconn *conn, const char *string); +extern int PQgetlineAsync(PGconn *conn, char *buffer, int bufsize); +extern int PQputnbytes(PGconn *conn, const char *buffer, int nbytes); +extern int PQendcopy(PGconn *conn); + +/* Set blocking/nonblocking connection to the backend */ +extern int PQsetnonblocking(PGconn *conn, int arg); +extern int PQisnonblocking(const PGconn *conn); + +/* Force the write buffer to be written (or at least try) */ +extern int PQflush(PGconn *conn); + +/* + * "Fast path" interface --- not really recommended for application + * use + */ +extern PGresult *PQfn(PGconn *conn, + int fnid, + int *result_buf, + int *result_len, + int result_is_int, + const PQArgBlock *args, + int nargs); + +/* Accessor functions for PGresult objects */ +extern ExecStatusType PQresultStatus(const PGresult *res); +extern char *PQresStatus(ExecStatusType status); +extern char *PQresultErrorMessage(const PGresult *res); +extern char *PQresultErrorField(const PGresult *res, int fieldcode); +extern int PQntuples(const PGresult *res); +extern int PQnfields(const PGresult *res); +extern int PQbinaryTuples(const PGresult *res); +extern char *PQfname(const PGresult *res, int field_num); +extern int PQfnumber(const PGresult *res, const char *field_name); +extern Oid PQftable(const PGresult *res, int field_num); +extern int PQftablecol(const PGresult *res, int field_num); +extern int PQfformat(const PGresult *res, int field_num); +extern Oid PQftype(const PGresult *res, int field_num); +extern int PQfsize(const PGresult *res, int field_num); +extern int PQfmod(const PGresult *res, int field_num); +extern char *PQcmdStatus(PGresult *res); +extern char *PQoidStatus(const PGresult *res); /* old and ugly */ +extern Oid PQoidValue(const PGresult *res); /* new and improved */ +extern char *PQcmdTuples(PGresult *res); +extern char *PQgetvalue(const PGresult *res, int tup_num, int field_num); +extern int PQgetlength(const PGresult *res, int tup_num, int field_num); +extern int PQgetisnull(const PGresult *res, int tup_num, int field_num); + +/* Delete a PGresult */ +extern void PQclear(PGresult *res); + +/* For freeing other alloc'd results, such as PGnotify structs */ +extern void PQfreemem(void *ptr); + +/* Exists for backward compatibility. bjm 2003-03-24 */ +#define PQfreeNotify(ptr) PQfreemem(ptr) + +/* Define the string so all uses are consistent. */ +#define PQnoPasswordSupplied "fe_sendauth: no password supplied\n" + +/* + * Make an empty PGresult with given status (some apps find this + * useful). If conn is not NULL and status indicates an error, the + * conn's errorMessage is copied. + */ +extern PGresult *PQmakeEmptyPGresult(PGconn *conn, ExecStatusType status); - /* Force the write buffer to be written (or at least try) */ - extern int PQflush(PGconn *conn); - /* - * "Fast path" interface --- not really recommended for application - * use - */ - extern PGresult *PQfn(PGconn *conn, - int fnid, - int *result_buf, - int *result_len, - int result_is_int, - const PQArgBlock *args, - int nargs); - - /* Accessor functions for PGresult objects */ - extern ExecStatusType PQresultStatus(const PGresult *res); - extern char *PQresStatus(ExecStatusType status); - extern char *PQresultErrorMessage(const PGresult *res); - extern int PQntuples(const PGresult *res); - extern int PQnfields(const PGresult *res); - extern int PQbinaryTuples(const PGresult *res); - extern char *PQfname(const PGresult *res, int field_num); - extern int PQfnumber(const PGresult *res, const char *field_name); - extern Oid PQftype(const PGresult *res, int field_num); - extern int PQfsize(const PGresult *res, int field_num); - extern int PQfmod(const PGresult *res, int field_num); - extern char *PQcmdStatus(PGresult *res); - extern char *PQoidStatus(const PGresult *res); /* old and ugly */ - extern Oid PQoidValue(const PGresult *res); /* new and improved */ - extern char *PQcmdTuples(PGresult *res); - extern char *PQgetvalue(const PGresult *res, int tup_num, int field_num); - extern int PQgetlength(const PGresult *res, int tup_num, int field_num); - extern int PQgetisnull(const PGresult *res, int tup_num, int field_num); +/* Quoting strings before inclusion in queries. */ +extern size_t PQescapeStringConn(PGconn *conn, + char *to, const char *from, size_t length, + int *error); +extern unsigned char *PQescapeByteaConn(PGconn *conn, + const unsigned char *from, size_t from_length, + size_t *to_length); +extern unsigned char *PQunescapeBytea(const unsigned char *strtext, + size_t *retbuflen); +/* These forms are deprecated! */ +extern size_t PQescapeString(char *to, const char *from, size_t length); +extern unsigned char *PQescapeBytea(const unsigned char *from, size_t from_length, + size_t *to_length); - /* Delete a PGresult */ - extern void PQclear(PGresult *res); - /* - * Make an empty PGresult with given status (some apps find this - * useful). If conn is not NULL and status indicates an error, the - * conn's errorMessage is copied. - */ - extern PGresult *PQmakeEmptyPGresult(PGconn *conn, ExecStatusType status); /* === in fe-print.c === */ - extern void PQprint(FILE *fout, /* output stream */ - const PGresult *res, - const PQprintOpt *ps); /* option structure */ +extern void +PQprint(FILE *fout, /* output stream */ + const PGresult *res, + const PQprintOpt *ps); /* option structure */ - /* - * really old printing routines - */ - extern void PQdisplayTuples(const PGresult *res, - FILE *fp, /* where to send the - * output */ - int fillAlign, /* pad the fields with - * spaces */ - const char *fieldSep, /* field separator */ - int printHeader, /* display headers? */ - int quiet); - - extern void PQprintTuples(const PGresult *res, - FILE *fout, /* output stream */ - int printAttName, /* print attribute names */ - int terseOutput, /* delimiter bars */ - int width); /* width of column, if - * 0, use variable width */ +/* + * really old printing routines + */ +extern void +PQdisplayTuples(const PGresult *res, + FILE *fp, /* where to send the output */ + int fillAlign, /* pad the fields with spaces */ + const char *fieldSep, /* field separator */ + int printHeader, /* display headers? */ + int quiet); + +extern void +PQprintTuples(const PGresult *res, + FILE *fout, /* output stream */ + int printAttName, /* print attribute names */ + int terseOutput, /* delimiter bars */ + int width); /* width of column, if 0, use variable + * width */ /* === in fe-lobj.c === */ - /* Large-object access routines */ - extern int lo_open(PGconn *conn, Oid lobjId, int mode); - extern int lo_close(PGconn *conn, int fd); - extern int lo_read(PGconn *conn, int fd, char *buf, size_t len); - extern int lo_write(PGconn *conn, int fd, char *buf, size_t len); - extern int lo_lseek(PGconn *conn, int fd, int offset, int whence); - extern Oid lo_creat(PGconn *conn, int mode); - extern int lo_tell(PGconn *conn, int fd); - extern int lo_unlink(PGconn *conn, Oid lobjId); - extern Oid lo_import(PGconn *conn, const char *filename); - extern int lo_export(PGconn *conn, Oid lobjId, const char *filename); +/* Large-object access routines */ +extern int lo_open(PGconn *conn, Oid lobjId, int mode); +extern int lo_close(PGconn *conn, int fd); +extern int lo_read(PGconn *conn, int fd, char *buf, size_t len); +extern int lo_write(PGconn *conn, int fd, char *buf, size_t len); +extern int lo_lseek(PGconn *conn, int fd, int offset, int whence); +extern Oid lo_creat(PGconn *conn, int mode); +extern int lo_tell(PGconn *conn, int fd); +extern int lo_unlink(PGconn *conn, Oid lobjId); +extern Oid lo_import(PGconn *conn, const char *filename); +extern int lo_export(PGconn *conn, Oid lobjId, const char *filename); /* === in fe-misc.c === */ - /* Determine length of multibyte encoded char at *s */ - extern int PQmblen(const unsigned char *s, int encoding); +/* Determine length of multibyte encoded char at *s */ +extern int PQmblen(const unsigned char *s, int encoding); - /* Get encoding id from environment variable PGCLIENTENCODING */ - extern int PQenv2encoding(void); +/* Determine display length of multibyte encoded char at *s */ +extern int PQdsplen(const unsigned char *s, int encoding); + +/* Get encoding id from environment variable PGCLIENTENCODING */ +extern int PQenv2encoding(void); #ifdef __cplusplus } - #endif -#endif /* LIBPQ_FE_H */ +#endif /* LIBPQ_FE_H */