93 lines
1.8 KiB
Go
93 lines
1.8 KiB
Go
module mysql
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#flag -lmysqlclient
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#include <mysql.h>
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struct DB {
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conn *C.MYSQL
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}
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struct Result {
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result *C.MYSQL_RES
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}
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struct Row {
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pub:
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vals []string
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}
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// C
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struct C.MYSQL { }
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struct C.MYSQL_RES { }
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fn C.mysql_init(mysql *C.MYSQL) *C.MYSQL
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fn C.mysql_real_connect(mysql *C.MYSQL, host byteptr, user byteptr, passwd byteptr, db byteptr, port u32, unix_socket byteptr, clientflag u64) *C.MYSQL
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fn C.mysql_query(mysql *C.MYSQL, q byteptr) int
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fn C.mysql_error(mysql *C.MYSQL) byteptr
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fn C.mysql_num_fields(res *C.MYSQL_RES) int
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fn C.mysql_store_result(mysql *C.MYSQL) *C.MYSQL_RES
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fn C.mysql_fetch_row(res *C.MYSQL_RES) *byteptr
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fn C.mysql_free_result(res *C.MYSQL_RES)
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fn C.mysql_close(sock *C.MYSQL)
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// V
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pub fn connect(server, user, passwd, dbname string) DB {
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conn := C.mysql_init(0)
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if isnil(conn) {
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eprintln('mysql_init failed')
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exit(1)
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}
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conn2 := C.mysql_real_connect(conn, server.str, user.str, passwd.str, dbname.str, 0, 0, 0)
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if isnil(conn2) {
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eprintln('mysql_real_connect failed')
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exit(1)
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}
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return DB {conn: conn2}
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}
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pub fn (db DB) query(q string) Result {
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ret := C.mysql_query(db.conn, q.str)
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if ret != 0 {
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C.fprintf(stderr, '%s\n', mysql_error(db.conn))
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exit(1)
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}
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res := C.mysql_store_result(db.conn)
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return Result {result: res}
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}
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pub fn (db DB) close() {
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C.mysql_close(db.conn)
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}
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pub fn (r Result) fetch_row() *byteptr {
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return C.mysql_fetch_row(r.result)
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}
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pub fn (r Result) num_fields() int {
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return C.mysql_num_fields(r.result)
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}
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pub fn (r Result) rows() []Row {
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mut rows := []Row
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nr_cols := r.num_fields()
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for rr := r.fetch_row(); rr; rr = r.fetch_row() {
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mut row := Row{}
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for i := 0; i < nr_cols; i++ {
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if rr[i] == 0 {
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row.vals << ''
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} else {
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row.vals << string(rr[i])
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}
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}
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rows << row
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}
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return rows
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}
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pub fn (r Result) free() {
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C.mysql_free_result(r.result)
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}
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