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#include "tcl.h"
#include "sql-mysql.h"
// -------------------------------------------------------------
Sql_mysql::Sql_mysql() {
for (int i=0; i < maxResults; i++) {
results[i] = NULL;
}
connect(0,NULL);
}
// -------------------------------------------------------------
Sql_mysql::Sql_mysql(int argc, char** argv) {
for (int i=0; i < maxResults; i++) {
results[i] = NULL;
}
connect(argc, argv);
}
// -------------------------------------------------------------
char *
Sql_mysql::getErrorMsg() {
char *msg = mysql_error(&mysql);
if (*msg == '\0') {
return errormsg;
} else {
return msg;
}
}
// -------------------------------------------------------------
// Return 0 in case of error, 1 otherwise
int
Sql_mysql::connect(int argc, char **argv) {
char *host = NULL;
char *user = NULL;
char *passwd = NULL;
if (argc > 0 && argv[0]) { host = argv[0]; }
if (argc > 1 && argv[1]) { user = argv[1]; }
if (argc > 2 && argv[2]) { passwd = argv[2]; }
if (!(mysql_connect(&mysql,host,user,passwd))) {
connected = 0;
return -1;
}
connected = 1;
return 1;
}
// -------------------------------------------------------------
int
Sql_mysql::selectdb(char *dbname) {
if (!connected || !dbname) return 0;
if (mysql_select_db(&mysql,dbname)) {
return 0;
}
return 1;
}
// -------------------------------------------------------------
int
Sql_mysql::exec(char *cmd) {
if (mysql_query(&mysql,cmd)) {
return 0;
}
return 1;
}
// -------------------------------------------------------------
int
Sql_mysql::numRows(int resHandle=0) {
if (!results[resHandle]) { return -1; }
return(mysql_num_rows(results[resHandle]));
}
// -------------------------------------------------------------
int
Sql_mysql::getFreeResultHandle() {
for (int i=0; i < maxResults; i++) {
if (!results[i]) { return i; }
}
// If we make it to here no result handles were free.
return -1;
}
// -------------------------------------------------------------
int
Sql_mysql::query(char *cmd) {
int resHandle = getFreeResultHandle();
MYSQL_RES *res;
if (resHandle < 0) {
// No result handles left open
sprintf(errormsg, "Too many pending results: max %d allowed.\n", maxResults);
return -1;
}
if (mysql_query(&mysql,cmd)) { return -2; }
if (!(res = mysql_store_result(&mysql))) { return -3; }
results[resHandle] = res;
return (resHandle);
}
// -------------------------------------------------------------
void
Sql_mysql::endquery(int resHandle=0) {
if (!results[resHandle]) return;
mysql_free_result(results[resHandle]);
results[resHandle] = NULL;
}
// -------------------------------------------------------------
// Note: A new Sql_row is allocated. Has to be freed by calling
// party.
Sql_row *
Sql_mysql::fetchrow(int resHandle=0) {
if (!results[resHandle]) {
sprintf(errormsg, "Result handle [%d] not in use.\n", resHandle);
return NULL;
}
MYSQL_ROW row;
MYSQL_RES *res = results[resHandle];
row = mysql_fetch_row(res);
if (!row) return NULL;
Sql_row *srow = new Sql_row(mysql_num_fields(res));
for (unsigned int i=0 ; i < mysql_num_fields(res); i++) {
srow->setColumn(i, row[i]);
}
return srow;
}
// -------------------------------------------------------------
Sql_mysql::~Sql_mysql() {
for (int i=0; i < maxResults ; i++) {
if (results[i]) { endquery(i); }
}
mysql_close(&mysql);
}
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