diff options
author | Sune Vuorela <sune@vuorela.dk> | 2012-11-16 13:19:05 +0100 |
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committer | The Qt Project <gerrit-noreply@qt-project.org> | 2012-11-20 14:13:07 +0100 |
commit | 93069a298a81d508ac651a2c1e9ca7dc00842589 (patch) | |
tree | 95d0dd5c17f10d148615686e4bfd74a59b486939 /src/sql/kernel/qsqldriver.cpp | |
parent | e671110a107358451bc84564cb80d27af8dfd8b2 (diff) |
create interface QSqlDriver::cancelQuery()
This is useful for canceling a long running sql query.
Note that it needs support from the individual drivers.
Change-Id: Ia170a70487ff4ee13c85f12bc13e62fb198617fe
Reviewed-by: Andy Shaw <andy.shaw@digia.com>
Reviewed-by: Mark Brand <mabrand@mabrand.nl>
Diffstat (limited to 'src/sql/kernel/qsqldriver.cpp')
-rw-r--r-- | src/sql/kernel/qsqldriver.cpp | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/sql/kernel/qsqldriver.cpp b/src/sql/kernel/qsqldriver.cpp index ec1628291d..62ec4e7e1f 100644 --- a/src/sql/kernel/qsqldriver.cpp +++ b/src/sql/kernel/qsqldriver.cpp @@ -789,4 +789,27 @@ QSql::NumericalPrecisionPolicy QSqlDriver::numericalPrecisionPolicy() const return d_func()->precisionPolicy; } +/*! + \since 5.0 + \internal + + Tries to cancel the running query, if the underlying driver has the + capability to cancel queries. Returns true on success, otherwise false. + + This function can be called from a different thread. + + If you use this function as a slot, you need to use a Qt::DirectConnection + from a different thread. + + Reimplement this function to support canceling running queries in + your own QSqlDriver subclass. It must be implemented in a thread-safe + manner. + + \sa QSqlDriver::hasFeature() +*/ +bool QSqlDriver::cancelQuery() +{ + return false; +} + QT_END_NAMESPACE |