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Diffstat (limited to 'board/MAI/bios_emulator/scitech/src/pm/tests/key.c')
-rw-r--r-- | board/MAI/bios_emulator/scitech/src/pm/tests/key.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/board/MAI/bios_emulator/scitech/src/pm/tests/key.c b/board/MAI/bios_emulator/scitech/src/pm/tests/key.c new file mode 100644 index 00000000000..cf89f79fb78 --- /dev/null +++ b/board/MAI/bios_emulator/scitech/src/pm/tests/key.c @@ -0,0 +1,92 @@ +/**************************************************************************** +* +* SciTech OS Portability Manager Library +* +* ======================================================================== +* +* The contents of this file are subject to the SciTech MGL Public +* License Version 1.0 (the "License"); you may not use this file +* except in compliance with the License. You may obtain a copy of +* the License at http://www.scitechsoft.com/mgl-license.txt +* +* Software distributed under the License is distributed on an +* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or +* implied. See the License for the specific language governing +* rights and limitations under the License. +* +* The Original Code is Copyright (C) 1991-1998 SciTech Software, Inc. +* +* The Initial Developer of the Original Code is SciTech Software, Inc. +* All Rights Reserved. +* +* ======================================================================== +* +* +* Language: ANSI C +* Environment: any +* +* Description: Test program to check the ability to install a C based +* keyboard interrupt handler. +* +* Functions tested: PM_setKeyHandler() +* PM_chainPrevKey() +* PM_restoreKeyHandler() +* +* +****************************************************************************/ + +#include <stdlib.h> +#include <stdio.h> +#include "pmapi.h" + +volatile long count = 0; + +#pragma off (check_stack) /* No stack checking under Watcom */ + +void PMAPI keyHandler(void) +{ + count++; + PM_chainPrevKey(); /* Chain to previous handler */ +} + +int main(void) +{ + int ch; + PM_lockHandle lh; + + printf("Program running in "); + switch (PM_getModeType()) { + case PM_realMode: + printf("real mode.\n\n"); + break; + case PM_286: + printf("16 bit protected mode.\n\n"); + break; + case PM_386: + printf("32 bit protected mode.\n\n"); + break; + } + + /* Install our timer handler and lock handler pages in memory. It is + * difficult to get the size of a function in C, but we know our + * function is well less than 100 bytes (and an entire 4k page will + * need to be locked by the server anyway). + */ + PM_lockCodePages((__codePtr)keyHandler,100,&lh); + PM_lockDataPages((void*)&count,sizeof(count),&lh); + PM_installBreakHandler(); /* We *DONT* want Ctrl-Breaks! */ + PM_setKeyHandler(keyHandler); + printf("Keyboard interrupt handler installed - Type some characters and\n"); + printf("hit ESC to exit\n"); + while ((ch = PM_getch()) != 0x1B) { + printf("%c", ch); + fflush(stdout); + } + + PM_restoreKeyHandler(); + PM_restoreBreakHandler(); + PM_unlockDataPages((void*)&count,sizeof(count),&lh); + PM_unlockCodePages((__codePtr)keyHandler,100,&lh); + printf("\n\nKeyboard handler was called %ld times\n", count); + return 0; +} |