static inline int wrapper_single_mysql_send_query(const db_con_t *conn,
const str *query)
{
int code, error;
if (CON_DISCON(conn))
return -1;
code = mysql_send_query(CON_CONNECTION(conn), query->s, query->len);
if (code == 0)
return 0;
error = mysql_errno(CON_CONNECTION(conn));
switch (error) {
case CR_SERVER_GONE_ERROR:
case CR_SERVER_LOST:
case CR_COMMANDS_OUT_OF_SYNC:
return -1; /* reconnection error -> <0 */
default:
LM_CRIT("driver error (%i): %s\n", error,
mysql_error(CON_CONNECTION(conn)));
/* do not rely on libmysqlclient implementation
* specification says non-zero code on error, not positive code */
return 1;
}
}
/*
* mysql_send_query is unlikely to block since most queries are small
* enough to fit in a socket buffer, but sometimes large UPDATE and
* INSERTs will cause the process to block
*/
static void *nogvl_send_query(void *ptr) {
struct nogvl_send_query_args *args = ptr;
int rv;
rv = mysql_send_query(args->mysql, args->sql_ptr, args->sql_len);
return (void*)(rv == 0 ? Qtrue : Qfalse);
}
/*
* mysql_send_query is unlikely to block since most queries are small
* enough to fit in a socket buffer, but sometimes large UPDATE and
* INSERTs will cause the process to block
*/
static VALUE nogvl_send_query(void *ptr) {
struct nogvl_send_query_args *args = ptr;
int rv;
const char *sql = StringValuePtr(args->sql);
long sql_len = RSTRING_LEN(args->sql);
rv = mysql_send_query(args->mysql, sql, sql_len);
return rv == 0 ? Qtrue : Qfalse;
}
MYSQL_RES *do_mysql_cCommand_execute_async(VALUE self, VALUE connection, MYSQL *db, VALUE query) {
int retval;
if ((retval = mysql_ping(db)) && mysql_errno(db) == CR_SERVER_GONE_ERROR) {
do_mysql_full_connect(connection, db);
}
struct timeval start;
const char *str = rb_str_ptr_readonly(query);
long len = rb_str_len(query);
gettimeofday(&start, NULL);
retval = mysql_send_query(db, str, len);
CHECK_AND_RAISE(retval, query);
int socket_fd = db->net.fd;
fd_set rset;
while (1) {
FD_ZERO(&rset);
FD_SET(socket_fd, &rset);
retval = rb_thread_select(socket_fd + 1, &rset, NULL, NULL, NULL);
if (retval < 0) {
rb_sys_fail(0);
}
if (retval == 0) {
continue;
}
if (db->status == MYSQL_STATUS_READY) {
break;
}
}
retval = mysql_read_query_result(db);
CHECK_AND_RAISE(retval, query);
data_objects_debug(connection, query, &start);
MYSQL_RES *result = mysql_store_result(db);
if (!result) {
CHECK_AND_RAISE(mysql_errno(db), query);
}
return result;
}
static MYSQL_RES* cCommand_execute_async(VALUE self, MYSQL* db, VALUE query) {
int socket_fd;
int retval;
fd_set rset;
char* str = RSTRING_PTR(query);
int len = RSTRING_LEN(query);
VALUE connection = rb_iv_get(self, "@connection");
retval = mysql_ping(db);
if(retval == CR_SERVER_GONE_ERROR) {
CHECK_AND_RAISE(retval, "Mysql server has gone away. \
Please report this issue to the Datamapper project. \
Specify your at least your MySQL version when filing a ticket");
}
retval = mysql_send_query(db, str, len);
data_objects_debug(query);
CHECK_AND_RAISE(retval, str);
socket_fd = db->net.fd;
for(;;) {
FD_ZERO(&rset);
FD_SET(socket_fd, &rset);
retval = rb_thread_select(socket_fd + 1, &rset, NULL, NULL, NULL);
if (retval < 0) {
rb_sys_fail(0);
}
