/*================================================================= // // context.c // // HAL Thread context handling test // //========================================================================== //####COPYRIGHTBEGIN#### // // ------------------------------------------- // The contents of this file are subject to the Cygnus eCos 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://sourceware.cygnus.com/ecos // // 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 eCos - Embedded Cygnus Operating System, released // September 30, 1998. // // The Initial Developer of the Original Code is Cygnus. Portions created // by Cygnus are Copyright (C) 1998,1999 Cygnus Solutions. All Rights Reserved. // ------------------------------------------- // //####COPYRIGHTEND#### //========================================================================== //#####DESCRIPTIONBEGIN#### // // Author(s): nickg // Contributors: nickg // Date: 1998-10-07 //####DESCRIPTIONEND#### */ #include #include #include #include #include #define CYG_TRACE_USER_BOOL 1 // ------------------------------------------------------------------------- #define THREADS 4 #define STACKSIZE (2*1024) char stack[THREADS][STACKSIZE]; CYG_ADDRWORD sp[THREADS]; cyg_count32 switches = 0; // ------------------------------------------------------------------------- void entry0( CYG_ADDRWORD arg ) { CYG_TRACE1B("Thread %d started\n", arg ); while( switches < 1000 ) { HAL_THREAD_SWITCH_CONTEXT( &sp[arg], &sp[(arg+1) % THREADS] ); CYG_TRACE1B("Thread %d resumed\n", arg ); switches++; } CYG_TEST_PASS_FINISH("HAL Context test"); } // ------------------------------------------------------------------------- void context_main(void) { int i; CYG_TEST_INIT(); // Init all thread contexts: for( i = 0 ; i < THREADS; i++ ) { sp[i] = (CYG_ADDRWORD)stack[i]+STACKSIZE; HAL_THREAD_INIT_CONTEXT( sp[i], i, entry0, i*0x01010000 ); } // Load the first thread. HAL_THREAD_LOAD_CONTEXT( &sp[0] ); } // ------------------------------------------------------------------------- externC void cyg_start( void ) { context_main(); } // ------------------------------------------------------------------------- /* EOF context.c */
