test.c
Peter Schlaile (schlaile)
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	Peter Schlaile (schlaile)
	Oct 29 2017, 11:36 AM

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test.c
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	#include <stdio.h>
	#include <stdlib.h>

	static inline int doit1(int v1, int v2)
	{
	return v1+v2;
	}

	static inline int doit2(int v1, int v2)
	{
	return v1*v2;
	}

	typedef int (*func_t)(int,int);

	struct handler {
	func_t h;
	};

	static inline struct handler get_handler1(int i)
	{
	struct handler rv;

	if (i == 0) {
	rv.h = doit1;
	} else {
	rv.h = doit2;
	}

	return rv;
	}

	static inline func_t get_handler2(int i)
	{
	func_t rv;

	if (i == 0) {
	return doit1;
	} else {
	return doit2;
	}
	}


	inline void proc1(
	int * in1, int * in2, int * out, int range, struct handler hnd)
	{
	int i;
	int j;

	for (j = 0; j < 1024000; j++) {
	for (i = 0; i < range; i++) {
	out[i] = hnd.h(in1[i], in2[i]);
	}
	}
	}

	inline void proc2(int * in1, int * in2, int * out, int range, func_t h)
	{
	int i;
	int j;

	for (j = 0; j < 1024000; j++) {
	for (i = 0; i < range; i++) {
	out[i] = h(in1[i], in2[i]);
	}
	}
	}


	int main(int argc, const char** argv)
	{
	int in1[1024];
	int in2[1024];
	int out[1024];
	FILE * fp;
	int kernel;
	int codepath;

	if (argc != 3) {
	fprintf(stderr, "Usage: test kernel codepath\n");
	return -1;
	}

	fp = fopen("/dev/urandom", "rb");
	fread(in1, sizeof(int), 1024, fp);
	fread(in2, sizeof(int), 1024, fp);
	fclose(fp);

	kernel = atoi(argv[1]);
	codepath = atoi(argv[2]);

	switch (codepath) {
	case 0:
	proc1(in1, in2, out, 1024, get_handler1(kernel));
	break;
	case 1:
	proc2(in1, in2, out, 1024, get_handler2(kernel));
	break;
	case 2:
	switch(kernel) {
	case 0:
	proc2(in1, in2, out, 1024, doit1);
	break;
	case 1:
	proc2(in1, in2, out, 1024, doit2);
	break;
	}
	break;
	}

	fp = fopen("/tmp/test_out", "wb");
	fwrite(out, sizeof(int), 1024, fp);
	fclose(fp);
	return 0;
	}