stasis-aries-wal/test/lladd-old/TInsert.c

/*---
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---*/
/*********************************
 * $Id: TInsert.c 2 2004-06-24 21:10:31Z sears $
 *
 * testing with various strings
 * *******************************/
#include <assert.h>
#include "test.h"

#define VERBOSE 0
#define SEED 5095

int test(int argc, char **argv) { 
	int xid;
	recordid rec;
	int num_trials;
	/* counters */
	int i;
	char c;

	/* used for making the random strings*/
	double r;
	int start, end;

	/* used to make a long string */	
	char first_printable_ascii = ' ';
	char last_printable_ascii = '~';
	int ascii_length = (int)(last_printable_ascii - first_printable_ascii);
	char *ASCII = (char *)malloc(sizeof(char) * ascii_length);

	/* an array of strings */
	char *string;

	/*	if (argc != 2)  {
		printf("usage: %s <num trials> argc=%d, %d\n", argv[0], argc, argc_orig);
		exit(-1);
		} */

	InitiateRecovery();

	/* create the long string from which random strings will be made */
	for (c = 0; c < ascii_length; c++) {
		ASCII[(int)c] = first_printable_ascii + c;
	}
	if (argc != 2)  {
		printf("usage: %s <num trials>\n", argv[0]);
		exit(-1);
	}

	num_trials = atoi(argv[1]);
	srand(SEED);

	for (i = 0; i < num_trials; i++) {
		start = 0;
		end = 0;
		while (start == end) {	
			r = ((double)rand()/(double)((double)RAND_MAX+1)); /* returns [0, 1)*/
			r = r*ascii_length;
			start = (int)r; /* an int in the rand [0, ascii_length) */

			r = ((double)rand()/(double)((double)RAND_MAX+1)); /* re turns [0, 1)*/
			r = r*ascii_length;
			end = (int)r; /* an int in the rand [0, ascii_length) */
		}
		if (end < start) {
			int swap = start;
			start = end;
			end = swap;
		}

		string = (char *)malloc(sizeof(char) * (end - start) + 1);
		strncpy(string, ASCII + start, end-start);
		string[end-start] = '\0'; /* make the string null terminated */
		xid = Tbegin();
		rec = Talloc(xid, sizeof(char)*(strlen(string) +1));
		if (VERBOSE) {
			printf("%d, %s\n", i, string);
			printf("rid is (%d, %d)\n", rec.page, rec.slot);
		}

		Tset(xid, rec, string);
		free (string);
		Tcommit(xid);

	}

	return 0;
}