bool CommandLineFlags::boolAt(char* name, size_t len, bool* value) {
Flag* result = Flag::find_flag(name, len);
if (result == NULL) return false;
if (!result->is_bool()) return false;
*value = result->get_bool();
return true;
}
// Implementation of "setflag" command
static jint set_flag(AttachOperation* op, outputStream* out) {
const char* name = NULL;
if ((name = op->arg(0)) == NULL) {
out->print_cr("flag name is missing");
return JNI_ERR;
}
Flag* f = Flag::find_flag((char*)name, strlen(name));
if (f && f->is_external() && f->is_writeable()) {
if (f->is_bool()) {
return set_bool_flag(name, op, out);
} else if (f->is_intx()) {
return set_intx_flag(name, op, out);
} else if (f->is_uintx()) {
return set_uintx_flag(name, op, out);
} else if (f->is_uint64_t()) {
return set_uint64_t_flag(name, op, out);
} else if (f->is_ccstr()) {
return set_ccstr_flag(name, op, out);
} else {
ShouldNotReachHere();
return JNI_ERR;
}
} else {
return AttachListener::pd_set_flag(op, out);
}
}
Flag::Error CommandLineFlags::boolAt(const char* name, size_t len, bool* value, bool allow_locked, bool return_flag) {
Flag* result = Flag::find_flag(name, len, allow_locked, return_flag);
if (result == NULL) return Flag::INVALID_FLAG;
if (!result->is_bool()) return Flag::WRONG_FORMAT;
*value = result->get_bool();
return Flag::SUCCESS;
}
void CommandLineFlagsEx::boolAtPut(CommandLineFlagWithType flag, bool value, Flag::Flags origin) {
Flag* faddr = address_of_flag(flag);
guarantee(faddr != NULL && faddr->is_bool(), "wrong flag type");
trace_flag_changed<EventBooleanFlagChanged, bool>(faddr->_name, faddr->get_bool(), value, origin);
faddr->set_bool(value);
faddr->set_origin(origin);
}
bool CommandLineFlags::boolAtPut(char* name, size_t len, bool* value, FlagValueOrigin origin) {
Flag* result = Flag::find_flag(name, len);
if (result == NULL) return false;
if (!result->is_bool()) return false;
bool old_value = result->get_bool();
result->set_bool(*value);
*value = old_value;
result->origin = origin;
return true;
}
bool CommandLineFlags::boolAtPut(char* name, size_t len, bool* value, Flag::Flags origin) {
Flag* result = Flag::find_flag(name, len);
if (result == NULL) return false;
if (!result->is_bool()) return false;
bool old_value = result->get_bool();
trace_flag_changed<EventBooleanFlagChanged, bool>(name, old_value, *value, origin);
result->set_bool(*value);
*value = old_value;
result->set_origin(origin);
return true;
}
void CommandLineFlagsEx::boolAtPut(CommandLineFlagWithType flag, bool value, FlagValueOrigin origin) {
Flag* faddr = address_of_flag(flag);
guarantee(faddr != NULL && faddr->is_bool(), "wrong flag type");
faddr->set_bool(value);
faddr->origin = origin;
}
Flag::Error CommandLineFlagsEx::boolAtPut(CommandLineFlagWithType flag, bool value, Flag::Flags origin) {
Flag* faddr = address_of_flag(flag);
guarantee(faddr != NULL && faddr->is_bool(), "wrong flag type");
return CommandLineFlags::boolAtPut(faddr, &value, origin);
}
