diff options
| -rw-r--r-- | lang/qt/src/dataprovider.cpp | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/lang/qt/src/dataprovider.cpp b/lang/qt/src/dataprovider.cpp index a025a03e..820ccbb3 100644 --- a/lang/qt/src/dataprovider.cpp +++ b/lang/qt/src/dataprovider.cpp @@ -248,7 +248,17 @@ ssize_t QIODeviceDataProvider::write(const void *buffer, size_t bufSize) return -1; } - return mIO->write(static_cast<const char *>(buffer), bufSize); + ssize_t ret = mIO->write(static_cast<const char *>(buffer), bufSize); + if (mHaveQProcess) { + /* XXX: With at least Qt 5.12 we have the problem that the acutal write + * would be triggered by an event / slot. So as we have moved the io + * device to our thread this is never triggered until the job is finished + * calling waitForBytesWritten internally triggers a _q_canWrite which will + * actually write. This is what we want as we want to stream and not to + * buffer endlessly. */ + qobject_cast<QProcess *>(mIO.get())->waitForBytesWritten(0); + } + return ret; } off_t QIODeviceDataProvider::seek(off_t offset, int whence) |