ugfx/demos/modules/gos/threads/main.c

56 lines
1.4 KiB
C

#include "gfx.h"
#if defined(WIN32)
#include <windows.h>
static DWORD nres;
// On Win32 don't use the C library fprintf or write as they crash.
// Maybe we just need to add the multi-thread C library options to the compile.
// Instead we use the Win32 API directly as that always works.
#define DEBUGWRITE(str) WriteFile(GetStdHandle(STD_ERROR_HANDLE), str, strlen(str), &nres, 0)
#else
#warning "You must alter this demo to define a DEBUGWRITE macro for your platform."
#warning "Be careful of using C library functions as they sometimes crash if they are not expecting stack changes (if possible use a multi-thread aware C library)"
#warning "You might flash LED's instead if that is better for your platform."
#error "--"
#endif
threadreturn_t heartbeat1(void* param)
{
(void)param;
while (TRUE) {
DEBUGWRITE("thread 1\n");
gfxSleepMilliseconds(500);
}
return (threadreturn_t)0;
}
threadreturn_t heartbeat2(void* param)
{
(void)param;
while (TRUE) {
DEBUGWRITE("thread 2\n");
gfxSleepMilliseconds(900);
}
return (threadreturn_t)0;
}
int main(void)
{
gfxInit();
// Give this plenty of stack. Stack size optimisation should be a production change only
gfxThreadCreate(0, 2048, NORMAL_PRIORITY, heartbeat1, 0);
gfxThreadCreate(0, 2048, NORMAL_PRIORITY, heartbeat2, 0);
while (TRUE) {
DEBUGWRITE("thread main\n");
gfxSleepMilliseconds(1400);
}
}