/* -*- mode:c; c-file-style:"k&r"; c-basic-offset: 4; tab-width:4; indent-tabs-mode:nil; mode:auto-fill; fill-column:78; -*- */ /* vim: set ts=4 sw=4 et tw=78 fo=cqt wm=0: */ /* This Hello World demostrate a simple multithread program */ #include "pal.h" #include "pal_debug.h" PAL_HANDLE wakeup; int thread (void * args) { pal_printf("Enter Thread\n"); DkThreadDelayExecution(3000000); pal_printf("set event\n"); char byte = 0; DkStreamWrite(wakeup, 0, 1, &byte, NULL); pal_printf("Leave Thread\n"); return 0; } int main() { pal_printf("Enter Main Thread\n"); PAL_HANDLE handles[3]; handles[0] = DkStreamOpen("pipe:", PAL_ACCESS_RDWR, 0, 0, 0); handles[1] = DkStreamOpen("pipe:", PAL_ACCESS_RDWR, 0, 0, 0); handles[2] = DkStreamOpen("pipe:", PAL_ACCESS_RDWR, 0, 0, 0); wakeup = handles[2]; PAL_HANDLE thd = DkThreadCreate(&thread, NULL, 0); if (thd == NULL) { pal_printf("DkThreadCreate failed\n"); return -1; } pal_printf("wait on event\n"); PAL_HANDLE hdl = DkObjectsWaitAny(3, handles, NO_TIMEOUT); if (hdl == wakeup) pal_printf("events is called\n"); pal_printf("Leave Main Thread\n"); return 0; }