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Introduce Mysql#idle? && Mysql#busy? as Threaded connection pool helpers for Mysql#c_async_query

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This commit is contained in:
Lourens Naude 2008-10-20 01:46:03 +01:00
parent 1af85383eb
commit 48a61dd627
1 changed files with 44 additions and 4 deletions
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42
ext/mysql.c
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@ -63,6 +63,7 @@ struct mysql {
char gc_disabled;
char blocking;
int async_in_progress;
char busy;
};
struct mysql_res {
@ -824,6 +825,32 @@ static VALUE blocking(VALUE obj){
return ( GetMysqlStruct(obj)->blocking ? Qtrue : Qfalse );
}
/* is_busy */
static VALUE is_busy(VALUE obj){
return ( GetMysqlStruct(obj)->busy ? Qtrue : Qfalse );
}
static VALUE is_idle(VALUE obj){
return ( is_busy(obj) == Qtrue ) ? Qfalse : Qtrue;
}
/* busy(true|false) */
static VALUE busy_set(VALUE obj, VALUE flag)
{
if (TYPE(flag) != T_TRUE && TYPE(flag) != T_FALSE)
rb_raise(rb_eTypeError, "invalid type, required true or false.");
GetMysqlStruct(obj)->busy = flag;
return flag;
}
static void busy( VALUE obj ){
busy_set( obj, Qtrue );
}
static void idle( VALUE obj ){
busy_set( obj, Qfalse );
}
/* readable(timeout=nil) */
static VALUE readable( int argc, VALUE* argv, VALUE obj )
{
@ -924,12 +951,14 @@ static VALUE send_query(VALUE obj, VALUE sql)
Check_Type(sql, T_STRING);
if (GetMysqlStruct(obj)->connection == Qfalse && async_in_progress(obj) == Qtrue ) {
idle( obj );
rb_raise(eMysql, "query: not connected");
}
validate_async_query(obj);
if (mysql_send_query(m, RSTRING_PTR(sql), RSTRING_LEN(sql)) != 0){
idle( obj );
mysql_raise(m);
}
@ -960,10 +989,13 @@ static VALUE get_result(VALUE obj)
async_in_progress_set( obj, Qfalse );
if (GetMysqlStruct(obj)->connection == Qfalse) {
idle( obj );
rb_raise(eMysql, "query: not connected");
}
if (mysql_read_query_result(m) != 0)
if (mysql_read_query_result(m) != 0){
idle( obj );
mysql_raise(m);
}
if (GetMysqlStruct(obj)->query_with_result == Qfalse)
return obj;
@ -988,6 +1020,7 @@ static void schedule_query(VALUE obj, VALUE timeout)
ret = rb_thread_select(m->net.fd + 1, &read, NULL, NULL, &tv);
if (ret < 0) {
idle( obj );
rb_raise(eMysql, "query: timeout");
}
@ -1011,14 +1044,18 @@ static VALUE async_query(int argc, VALUE* argv, VALUE obj)
async_in_progress_set( obj, Qfalse );
busy(obj);
send_query(obj,sql);
schedule_query(obj, timeout);
if (rb_block_given_p()) {
rb_yield( get_result(obj) );
idle( obj );
return obj;
}else{
idle( obj );
return get_result(obj);
}
}
@ -2323,6 +2360,9 @@ void Init_mysql(void)
rb_define_method(cMysql, "blocking?", blocking, 0);
rb_define_method(cMysql, "gc_disabled?", gc_disabled, 0);
rb_define_method(cMysql, "disable_gc=", disable_gc_set, 1);
rb_define_method(cMysql, "busy?", is_busy, 0);
rb_define_method(cMysql, "idle?", is_idle, 0);
rb_define_method(cMysql, "busy=", busy_set, 1);
rb_define_method(cMysql, "socket", socket, 0);
rb_define_method(cMysql, "refresh", refresh, 1);
rb_define_method(cMysql, "reload", reload, 0);