author | martin.trojer@nokia.com |
Fri, 31 Jul 2009 15:01:17 +0100 | |
changeset 1 | 2fb8b9db1c86 |
permissions | -rw-r--r-- |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
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:mod:`pty` --- Pseudo-terminal utilities |
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======================================== |
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.. module:: pty |
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:platform: IRIX, Linux |
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:synopsis: Pseudo-Terminal Handling for SGI and Linux. |
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.. moduleauthor:: Steen Lumholt |
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.. sectionauthor:: Moshe Zadka <moshez@zadka.site.co.il> |
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The :mod:`pty` module defines operations for handling the pseudo-terminal |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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concept: starting another process and being able to write to and read from its |
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controlling terminal programmatically. |
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Because pseudo-terminal handling is highly platform dependant, there is code to |
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do it only for SGI and Linux. (The Linux code is supposed to work on other |
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platforms, but hasn't been tested yet.) |
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The :mod:`pty` module defines the following functions: |
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.. function:: fork() |
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Fork. Connect the child's controlling terminal to a pseudo-terminal. Return |
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value is ``(pid, fd)``. Note that the child gets *pid* 0, and the *fd* is |
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*invalid*. The parent's return value is the *pid* of the child, and *fd* is a |
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file descriptor connected to the child's controlling terminal (and also to the |
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child's standard input and output). |
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.. function:: openpty() |
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Open a new pseudo-terminal pair, using :func:`os.openpty` if possible, or |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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emulation code for SGI and generic Unix systems. Return a pair of file |
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descriptors ``(master, slave)``, for the master and the slave end, respectively. |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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.. function:: spawn(argv[, master_read[, stdin_read]]) |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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Spawn a process, and connect its controlling terminal with the current |
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process's standard io. This is often used to baffle programs which insist on |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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reading from the controlling terminal. |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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The functions *master_read* and *stdin_read* should be functions which read from |
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a file descriptor. The defaults try to read 1024 bytes each time they are |
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called. |
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