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  1. Qt
  2. QTBUG-92907

Provide easier handling of stdin/stdout for spawned QCoreApplication

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Details

    • Suggestion
    • Resolution: Unresolved
    • Not Evaluated
    • None
    • None
    • Core: I/O
    • None

    Description

      stdin/stdout handling of the parent process is nicely abstracted away with QProcess.

      On the other hand, getting this right for the child process is quite error prone:

      • reading blocks when stdin is opened using a file descriptor (QTBUG-92905)
      • each read causes 1 F_GETFL and 2 F_SETFL fnctl calls
      • writing is buffered when stdout is opened using a file handle, an explicit flush is necessary (QTBUG-92906)

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          is required for

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-36238 qml tool console behavior

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Reported
          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-92905 QFile/pipe reading blocks when using a file descriptor instead of a handle

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Reported

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-92906 Unbuffered QFile buffers when opened using FILE* handle

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed
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              vhilshei Volker Hilsheimer
              bruns Stefan Brüns
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              Dates

                Created:
                Updated:

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