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author | Joel Bodenmann <joel@unormal.org> | 2014-11-28 18:41:11 +0100 |
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committer | Joel Bodenmann <joel@unormal.org> | 2014-11-28 18:41:11 +0100 |
commit | 181ba3807f0fd392a5c90c0331b395eeca90d1f3 (patch) | |
tree | 29f875c8df7353b16208a34b4d0561bb860c4af9 /demos/modules/gos/threads_advanced/main.c | |
parent | b799e16689cdee09806db0d06fc90a2151d191ec (diff) | |
download | uGFX-181ba3807f0fd392a5c90c0331b395eeca90d1f3.tar.gz uGFX-181ba3807f0fd392a5c90c0331b395eeca90d1f3.tar.bz2 uGFX-181ba3807f0fd392a5c90c0331b395eeca90d1f3.zip |
Adding /demos/modules/gos/threads_advanced
Diffstat (limited to 'demos/modules/gos/threads_advanced/main.c')
-rw-r--r-- | demos/modules/gos/threads_advanced/main.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/demos/modules/gos/threads_advanced/main.c b/demos/modules/gos/threads_advanced/main.c new file mode 100644 index 00000000..7fdf5e0c --- /dev/null +++ b/demos/modules/gos/threads_advanced/main.c @@ -0,0 +1,102 @@ +/* + * Copyright (c) 2012, 2013, Joel Bodenmann aka Tectu <joel@unormal.org> + * Copyright (c) 2012, 2013, Andrew Hannam aka inmarket + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the <organization> nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * This demo shows how to create a static thread and how to terminate it + * after some period of time. + * A GTimer is used to termiate the thread. + * + * Note: The GOS API does not provide any function to terminate or kill a thread + * as not every operating system allows it to terminate a thread out + * from another one. Therefore, we use the parameters to implement a + * "fall over the edge" algorithm. + */ + +#include "gfx.h" + +GTimer gt; +gfxThreadHandle thd; + +/* + * Thread function + * Prints a message + */ +threadreturn_t Thread_function(void* param) +{ + /* Cast the paramter into a bool pointer so we can use it */ + bool_t* doExit = (bool_t*)param; + + /* Execute this until we shall be terminated */ + while (*doExit == FALSE) { + printf("Message from Thread\r\n"); + gfxSleepMilliseconds(500); + } + + /* Don't return anything */ + return (threadreturn_t)0; +} + +/* + * Timer callback function + * Will be called when timer expires/fires + */ +void timerCallback(void* param) +{ + /* Cast the paramter into a bool pointer so we can use it */ + bool_t* threadExit = (bool_t*)param; + + /* Ask the Thread to fall over the end */ + printf("Closing thread!\r\n"); + *threadExit = TRUE; +} + +/* + * The main function + */ +int main(void) +{ + bool_t exitThread = FALSE; + + gfxInit(); + + /* Initialize the timer */ + gtimerInit(>); + + /* Create a static thread from the default heap with normal priority. No parameter passed */ + thd = gfxThreadCreate(NULL, 128, NORMAL_PRIORITY, Thread_function, (void*)&exitThread); + + /* Start the timer. The callback function will be called once after 2000ms + * We will pass the thread handle as a parameter so the timer can ask the thread to termite + */ + gtimerStart(>, timerCallback, (void*)&exitThread, FALSE, 2000); + + while(TRUE) { + gfxSleepMilliseconds(500); + } +} |