diff options
Diffstat (limited to 'src/corelib/io/qprocess_unix.cpp')
-rw-r--r-- | src/corelib/io/qprocess_unix.cpp | 35 |
1 files changed, 25 insertions, 10 deletions
diff --git a/src/corelib/io/qprocess_unix.cpp b/src/corelib/io/qprocess_unix.cpp index a5b7692fc9..8c5589538d 100644 --- a/src/corelib/io/qprocess_unix.cpp +++ b/src/corelib/io/qprocess_unix.cpp @@ -681,21 +681,36 @@ qint64 QProcessPrivate::readFromChannel(const Channel *channel, char *data, qint return bytesRead; } -qint64 QProcessPrivate::writeToStdin(const char *data, qint64 maxlen) +bool QProcessPrivate::writeToStdin() { - qint64 written = qt_safe_write_nosignal(stdinChannel.pipe[1], data, maxlen); + const char *data = writeBuffer.readPointer(); + const qint64 bytesToWrite = writeBuffer.nextDataBlockSize(); + + qint64 written = qt_safe_write_nosignal(stdinChannel.pipe[1], data, bytesToWrite); #if defined QPROCESS_DEBUG - qDebug("QProcessPrivate::writeToStdin(%p \"%s\", %lld) == %lld", - data, qt_prettyDebug(data, maxlen, 16).constData(), maxlen, written); + qDebug("QProcessPrivate::writeToStdin(), write(%p \"%s\", %lld) == %lld", + data, qt_prettyDebug(data, bytesToWrite, 16).constData(), bytesToWrite, written); if (written == -1) qDebug("QProcessPrivate::writeToStdin(), failed to write (%s)", qPrintable(qt_error_string(errno))); #endif - // If the O_NONBLOCK flag is set and If some data can be written without blocking - // the process, write() will transfer what it can and return the number of bytes written. - // Otherwise, it will return -1 and set errno to EAGAIN - if (written == -1 && errno == EAGAIN) - written = 0; - return written; + if (written == -1) { + // If the O_NONBLOCK flag is set and If some data can be written without blocking + // the process, write() will transfer what it can and return the number of bytes written. + // Otherwise, it will return -1 and set errno to EAGAIN + if (errno == EAGAIN) + return true; + + closeChannel(&stdinChannel); + setErrorAndEmit(QProcess::WriteError); + return false; + } + writeBuffer.free(written); + if (!emittedBytesWritten && written != 0) { + emittedBytesWritten = true; + emit q_func()->bytesWritten(written); + emittedBytesWritten = false; + } + return true; } void QProcessPrivate::terminateProcess() |