73 lines
1.5 KiB
C
73 lines
1.5 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <conio.h>
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#include <windows.h>
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#include "platform.h"
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#define NS_PER_SEC 1000000000
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#define MICRO_PER_MILLI 1000
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double ns_per_perfcount;
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//any platform-specific setup that must be done before sim starts here
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void platform_init()
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{
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__int64 counts_per_sec;
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QueryPerformanceFrequency((LARGE_INTEGER*)&countsPerSec);
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ns_per_perfcount = (float)NS_PER_SEC / counts_per_sec;
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}
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//cleanup int here;
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void platform_terminate()
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{
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}
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//returns a free-running 32 bit nanosecond counter which rolls over
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uint32_t platform_ns()
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{
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static uint32_t gTimeBase = 0;
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__int64 counts;
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uint32_t ns;
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QueryPerformanceCounter((LARGE_INTEGER*)&counts);
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ns = (counts*ns_per_perfcount);
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if (gTimeBase== 0){gTimeBase=ns;}
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return ns-gTimeBase;
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}
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//sleep in microseconds
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void platform_sleep(long microsec)
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{
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Sleep(microsec/MICRO_PER_MILLI);
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}
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//create a thread
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plat_thread_t* platform_start_thread(plat_threadfunc_t threadfunc) {
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plat_thread_t* th = malloc(sizeof(plat_thread_t));
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th->tid = CreateThread(NULL,0,threadfunc,&th->exit,0);
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if (!th->tid){
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free(th);
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return NULL;
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}
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return th;
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}
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//ask thread to exit nicely, wait
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void platform_stop_thread(plat_thread_t* th){
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th->exit = 1;
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WaitForSingleObject(th->tid,INFINITE);
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}
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//force-kill thread
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void platform_kill_thread(plat_thread_t* th){
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th->exit = 1;
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TerminateThread(th->tid);
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}
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//return char if one available.
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uint8_t platform_poll_stdin() {
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return _kbhit();
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}
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