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125 lines
2.9 KiB
C
125 lines
2.9 KiB
C
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/* OS/2 PM main program - creates a hidden window, and starts Python
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* interpreter in a separate thread, so that Python scripts can be
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* run in PM process space without a console Window. The interpreter
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* is incorporated by linking in the Python DLL.
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*
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* As it stands, I don't think this is adequate for supporting Python
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* GUI modules, as the Python thread doesn't have its own message
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* queue - which is required of threads that want to create/use
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* PM windows.
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*
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* This code owes a lot to "OS/2 Presentation Manager Programming", by
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* Charles Petzold.
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*
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* Andrew MacIntyre <andymac@bullseye.apana.org.au>, August 2001.
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* Released under the terms of the Python 2.1.1 licence - see the LICENCE
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* file in the Python v2.1.1 (or later) source distribution.
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* Copyright assigned to the Python Software Foundation, 2001.
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*/
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#define INCL_DOS
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#define INCL_WIN
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#include <os2.h>
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#include <process.h>
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#include "Python.h"
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/* use structure to pass command line to Python thread */
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typedef struct
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{
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int argc;
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char **argv;
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HWND Frame;
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int running;
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} arglist;
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/* make this a global to simplify access.
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* it should only be set from the Python thread, or by the code that
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* initiates the Python thread when the thread cannot be created.
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*/
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int PythonRC;
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extern DL_EXPORT(int) Py_Main(int, char **);
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void PythonThread(void *);
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int
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main(int argc, char **argv)
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{
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ULONG FrameFlags = FCF_TITLEBAR |
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FCF_SYSMENU |
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FCF_SIZEBORDER |
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FCF_HIDEBUTTON |
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FCF_SHELLPOSITION |
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FCF_TASKLIST;
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HAB hab;
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HMQ hmq;
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HWND Client;
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QMSG qmsg;
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arglist args;
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int python_tid;
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/* init PM and create message queue */
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hab = WinInitialize(0);
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hmq = WinCreateMsgQueue(hab, 0);
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/* create a (hidden) Window to house the window procedure */
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args.Frame = WinCreateStdWindow(HWND_DESKTOP,
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0,
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&FrameFlags,
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NULL,
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"PythonPM",
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0L,
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0,
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0,
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&Client);
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/* run Python interpreter in a thread */
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args.argc = argc;
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args.argv = argv;
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args.running = 0;
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if (-1 == (python_tid = _beginthread(PythonThread, NULL, 1024 * 1024, &args)))
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{
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/* couldn't start thread */
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WinAlarm(HWND_DESKTOP, WA_ERROR);
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PythonRC = 1;
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}
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else
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{
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/* process PM messages, until Python exits */
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while (WinGetMsg(hab, &qmsg, NULLHANDLE, 0, 0))
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WinDispatchMsg(hab, &qmsg);
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if (args.running > 0)
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DosKillThread(python_tid);
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}
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/* destroy window, shutdown message queue and PM */
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WinDestroyWindow(args.Frame);
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WinDestroyMsgQueue(hmq);
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WinTerminate(hab);
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return PythonRC;
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}
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void PythonThread(void *argl)
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{
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HAB hab;
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arglist *args;
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/* PM initialisation */
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hab = WinInitialize(0);
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/* start Python */
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args = (arglist *)argl;
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args->running = 1;
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PythonRC = Py_Main(args->argc, args->argv);
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/* enter a critical section and send the termination message */
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DosEnterCritSec();
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args->running = 0;
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WinPostMsg(args->Frame, WM_QUIT, NULL, NULL);
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/* shutdown PM and terminate thread */
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WinTerminate(hab);
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_endthread();
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}
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