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changed GArray to GPtrArray for MdbColumn list. completed mdb_bind_column() stuff

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This commit is contained in:
brianb
2000-03-12 14:08:53 +00:00
parent fa6c08a08d
commit 6e24e9cb02
5 changed files with 64 additions and 37 deletions
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57
src/libmdb/data.c
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@@ -19,12 +19,18 @@
#include "mdbtools.h"
#define MDB_DEBUG 1
#define MDB_DEBUG 0
char *mdb_col_to_string(MdbHandle *mdb, int start, int datatype, int size);
void mdb_bind_col(MdbColumn *col, void *bind_ptr)
void mdb_bind_column(MdbTableDef *table, int col_num, void *bind_ptr)
{
MdbColumn *col;
/*
** the column arrary is 0 based, so decrement to get 1 based parameter
*/
col=g_ptr_array_index(table->columns, col_num - 1);
col->bind_ptr = bind_ptr;
}
int mdb_find_end_of_row(MdbHandle *mdb, int row)
@@ -42,7 +48,7 @@ int rows, row_end;
int mdb_read_row(MdbTableDef *table, int pg_num, int row)
{
MdbHandle *mdb = table->entry->mdb;
MdbColumn col;
MdbColumn *col;
int j;
int num_cols, var_cols, fixed_cols;
int row_start, row_end;
@@ -90,33 +96,33 @@ int delflag, lookupflag;
/* fixed columns */
for (j=0;j<table->num_cols;j++) {
col = g_array_index(table->columns,MdbColumn,j);
if (mdb_is_fixed_col(&col) &&
col = g_ptr_array_index(table->columns,j);
if (mdb_is_fixed_col(col) &&
++fixed_cols_found <= fixed_cols) {
if (col.bind_ptr) {
strcpy(col.bind_ptr,
if (col->bind_ptr) {
strcpy(col->bind_ptr,
mdb_col_to_string(mdb,
row_start + col_start,
col.col_type,
col->col_type,
0)
);
}
#if MDB_DEBUG
fprintf(stdout,"fixed col %s = %s\n",
col.name,
col->name,
mdb_col_to_string(mdb,
row_start + col_start,
col.col_type,
col->col_type,
0));
col_start += col.col_size;
#endif
col_start += col->col_size;
}
}
/* variable columns */
for (j=0;j<table->num_cols;j++) {
col = g_array_index(table->columns,MdbColumn,j);
if (!mdb_is_fixed_col(&col) &&
col = g_ptr_array_index(table->columns,j);
if (!mdb_is_fixed_col(col) &&
++var_cols_found <= var_cols) {
col_start = mdb->pg_buf[row_end-1-var_cols_found];
@@ -127,24 +133,24 @@ int delflag, lookupflag;
#if MDB_DEBUG
fprintf(stdout,"coltype %d colstart %d len %d\n",
col.col_type,
col->col_type,
col_start,
len);
#endif
if (col.bind_ptr) {
strcpy(col.bind_ptr,
if (col->bind_ptr) {
strcpy(col->bind_ptr,
mdb_col_to_string(mdb,
row_start + col_start,
col.col_type,
col->col_type,
len)
);
}
#if MDB_DEBUG
fprintf(stdout,"var col %s = %s\n",
col.name,
col->name,
mdb_col_to_string(mdb,
row_start + col_start,
col.col_type,
col->col_type,
len));
#endif
@@ -158,9 +164,14 @@ int delflag, lookupflag;
void mdb_data_dump(MdbTableDef *table)
{
MdbHandle *mdb = table->entry->mdb;
int i, pg_num;
int i, j, pg_num;
int rows;
char *bound_values[256]; /* warning doesn't handle table > 256 columns. Can that happen? */
for (i=0;i<table->num_cols;i++) {
bound_values[i] = (char *) malloc(256);
mdb_bind_column(table, i+1, bound_values[i]);
}
for (pg_num=1;pg_num<=table->num_pgs;pg_num++) {
mdb_read_pg(mdb,table->first_data_pg + pg_num);
rows = mdb_get_int16(mdb,8);
@@ -169,8 +180,14 @@ int rows;
rows);
for (i=0;i<rows;i++) {
mdb_read_row(table, table->first_data_pg + pg_num, i);
for (j=0;j<table->num_cols;j++) {
fprintf(stdout, "column %d is %s\n", j+1, bound_values[j]);
}
}
}
for (i=0;i<table->num_cols;i++) {
free(bound_values[i]);
}
}
int mdb_is_fixed_col(MdbColumn *col)