bcp.c File Reference

Implementation of db-lib bulk copy functions. More...

#include <stdarg.h>
#include <stdio.h>
#include <assert.h>
#include "tds.h"
#include "tdsiconv.h"
#include "tdsconvert.h"
#include "replacements.h"
#include "sybfront.h"
#include "sybdb.h"
#include "syberror.h"
#include "dblib.h"

Classes
struct	_pbcb
Defines
#define	fseeko(f, o, w)   fseek(f,o,w)
#define	ftello(f)   ftell(f)
#define	HOST_COL_CONV_ERROR   1
#define	HOST_COL_NULL_ERROR   2
#define	MAX(a, b)   ( (a) > (b) ? (a) : (b) )
Typedefs
typedef long	offset_type
typedef _pbcb	TDS_PBCB
Enumerations
enum	BEHAVIOUR { BCP_REC_NOFETCH_DATA = 0, BCP_REC_FETCH_DATA = 1 }
Functions
static int	_bcp_add_fixed_columns (DBPROCESS *dbproc, BEHAVIOUR behaviour, BYTE *rowbuffer, int start)
static int	_bcp_add_variable_columns (DBPROCESS *dbproc, BEHAVIOUR behaviour, BYTE *rowbuffer, int start, int *pncols)
static RETCODE	_bcp_build_bulk_insert_stmt (TDSSOCKET *, TDS_PBCB *, TDSCOLUMN *, int)
static RETCODE	_bcp_check_eof (DBPROCESS *dbproc, FILE *file, int icol)
static RETCODE	_bcp_exec_in (DBPROCESS *dbproc, DBINT *rows_copied)
static RETCODE	_bcp_exec_out (DBPROCESS *dbproc, DBINT *rows_copied)
static char *	_bcp_fgets (char *buffer, size_t size, FILE *f)
static void	_bcp_free_columns (DBPROCESS *dbproc)
static void	_bcp_free_storage (DBPROCESS *dbproc)
static RETCODE	_bcp_get_col_data (DBPROCESS *dbproc, TDSCOLUMN *bindcol)
	For a bcp in from program variables, get the data from the host variable.
static RETCODE	_bcp_get_term_var (BYTE *pdata, BYTE *term, int term_len)
static offset_type	_bcp_measure_terminated_field (FILE *hostfile, BYTE *terminator, int term_len)
static RETCODE	_bcp_read_hostfile (DBPROCESS *dbproc, FILE *hostfile, int *row_error)
static int	_bcp_readfmt_colinfo (DBPROCESS *dbproc, char *buf, BCP_HOSTCOLINFO *ci)
static RETCODE	_bcp_send_bcp_record (DBPROCESS *dbproc, BEHAVIOUR behaviour)
static RETCODE	_bcp_send_colmetadata (DBPROCESS *)
static RETCODE	_bcp_start_copy_in (DBPROCESS *)
static RETCODE	_bcp_start_new_batch (DBPROCESS *)
DBINT	bcp_batch (DBPROCESS *dbproc)
	Commit a set of rows to the table.
RETCODE	bcp_bind (DBPROCESS *dbproc, BYTE *varaddr, int prefixlen, DBINT varlen, BYTE *terminator, int termlen, int vartype, int table_column)
	Bind a program host variable to a database column.
RETCODE	bcp_colfmt (DBPROCESS *dbproc, int host_colnum, int host_type, int host_prefixlen, DBINT host_collen, const BYTE *host_term, int host_termlen, int table_colnum)
	Specify the format of a datafile prior to writing to a table.
RETCODE	bcp_colfmt_ps (DBPROCESS *dbproc, int host_colnum, int host_type, int host_prefixlen, DBINT host_collen, BYTE *host_term, int host_termlen, int table_colnum, DBTYPEINFO *typeinfo)
	Specify the format of a host file for bulk copy purposes, with precision and scale support for numeric and decimal columns.
RETCODE	bcp_collen (DBPROCESS *dbproc, DBINT varlen, int table_column)
	Set the length of a host variable to be written to a table.
RETCODE	bcp_colptr (DBPROCESS *dbproc, BYTE *colptr, int table_column)
	Override bcp_bind() by pointing to a different host variable.
RETCODE	bcp_columns (DBPROCESS *dbproc, int host_colcount)
	Indicate how many columns are to be found in the datafile.
RETCODE	bcp_control (DBPROCESS *dbproc, int field, DBINT value)
	Set BCP options for uploading a datafile.
DBINT	bcp_done (DBPROCESS *dbproc)
	Conclude the transfer of data from program variables.
RETCODE	bcp_exec (DBPROCESS *dbproc, DBINT *rows_copied)
	Write a datafile to a table.
int	bcp_getbatchsize (DBPROCESS *dbproc)
DBBOOL	bcp_getl (LOGINREC *login)
	See if BCP_SETL() was used to set the LOGINREC for BCP work.
RETCODE	bcp_init (DBPROCESS *dbproc, const char *tblname, const char *hfile, const char *errfile, int direction)
	Prepare for bulk copy operation on a table.
RETCODE	bcp_moretext (DBPROCESS *dbproc, DBINT size, BYTE *text)
	Write some text or image data to the server. Not implemented, sadly.
RETCODE	bcp_options (DBPROCESS *dbproc, int option, BYTE *value, int valuelen)
	Set "hints" for uploading a file. A FreeTDS-only function.
RETCODE	bcp_readfmt (DBPROCESS *dbproc, char *filename)
	Read a format definition file.
static void	bcp_row_free (TDSRESULTINFO *result, unsigned char *row)
RETCODE	bcp_sendrow (DBPROCESS *dbproc)
	Write data in host variables to the table.
RETCODE	bcp_writefmt (DBPROCESS *dbproc, char *filename)
	Write a format definition file. Not Implemented.
static int	rtrim (char *, int)
	trim a string of trailing blanks
	TDS_RCSID (var,"$Id: bcp.c,v 1.171 2008/01/08 15:38:31 jklowden Exp $")

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Detailed Description

Implementation of db-lib bulk copy functions.

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