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#include "lsmtest.h"
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#ifndef _WIN32
# include <sys/time.h>
#endif
/*
** Global variables used within this module.
*/
static struct TestutilGlobal {
char **argv;
int argc;
} g = {0, 0};
static struct TestutilRnd {
unsigned int aRand1[2048]; /* Bits 0..10 */
unsigned int aRand2[2048]; /* Bits 11..21 */
unsigned int aRand3[1024]; /* Bits 22..31 */
} r;
/*************************************************************************
** The following block is a copy of the implementation of SQLite function
** sqlite3_randomness. This version has two important differences:
**
** 1. It always uses the same seed. So the sequence of random data output
** is the same for every run of the program.
**
** 2. It is not threadsafe.
*/
static struct sqlite3PrngType {
unsigned char i, j; /* State variables */
unsigned char s[256]; /* State variables */
} sqlite3Prng = {
0xAF, 0x28,
{
0x71, 0xF5, 0xB4, 0x6E, 0x80, 0xAB, 0x1D, 0xB8,
0xFB, 0xB7, 0x49, 0xBF, 0xFF, 0x72, 0x2D, 0x14,
0x79, 0x09, 0xE3, 0x78, 0x76, 0xB0, 0x2C, 0x0A,
0x8E, 0x23, 0xEE, 0xDF, 0xE0, 0x9A, 0x2F, 0x67,
0xE1, 0xBE, 0x0E, 0xA7, 0x08, 0x97, 0xEB, 0x77,
0x78, 0xBA, 0x9D, 0xCA, 0x49, 0x4C, 0x60, 0x9A,
0xF6, 0xBD, 0xDA, 0x7F, 0xBC, 0x48, 0x58, 0x52,
0xE5, 0xCD, 0x83, 0x72, 0x23, 0x52, 0xFF, 0x6D,
0xEF, 0x0F, 0x82, 0x29, 0xA0, 0x83, 0x3F, 0x7D,
0xA4, 0x88, 0x31, 0xE7, 0x88, 0x92, 0x3B, 0x9B,
0x3B, 0x2C, 0xC2, 0x4C, 0x71, 0xA2, 0xB0, 0xEA,
0x36, 0xD0, 0x00, 0xF1, 0xD3, 0x39, 0x17, 0x5D,
0x2A, 0x7A, 0xE4, 0xAD, 0xE1, 0x64, 0xCE, 0x0F,
0x9C, 0xD9, 0xF5, 0xED, 0xB0, 0x22, 0x5E, 0x62,
0x97, 0x02, 0xA3, 0x8C, 0x67, 0x80, 0xFC, 0x88,
0x14, 0x0B, 0x15, 0x10, 0x0F, 0xC7, 0x40, 0xD4,
0xF1, 0xF9, 0x0E, 0x1A, 0xCE, 0xB9, 0x1E, 0xA1,
0x72, 0x8E, 0xD7, 0x78, 0x39, 0xCD, 0xF4, 0x5D,
0x2A, 0x59, 0x26, 0x34, 0xF2, 0x73, 0x0B, 0xA0,
0x02, 0x51, 0x2C, 0x03, 0xA3, 0xA7, 0x43, 0x13,
0xE8, 0x98, 0x2B, 0xD2, 0x53, 0xF8, 0xEE, 0x91,
0x7D, 0xE7, 0xE3, 0xDA, 0xD5, 0xBB, 0xC0, 0x92,
0x9D, 0x98, 0x01, 0x2C, 0xF9, 0xB9, 0xA0, 0xEB,
0xCF, 0x32, 0xFA, 0x01, 0x49, 0xA5, 0x1D, 0x9A,
0x76, 0x86, 0x3F, 0x40, 0xD4, 0x89, 0x8F, 0x9C,
0xE2, 0xE3, 0x11, 0x31, 0x37, 0xB2, 0x49, 0x28,
0x35, 0xC0, 0x99, 0xB6, 0xD0, 0xBC, 0x66, 0x35,
0xF7, 0x83, 0x5B, 0xD7, 0x37, 0x1A, 0x2B, 0x18,
0xA6, 0xFF, 0x8D, 0x7C, 0x81, 0xA8, 0xFC, 0x9E,
0xC4, 0xEC, 0x80, 0xD0, 0x98, 0xA7, 0x76, 0xCC,
0x9C, 0x2F, 0x7B, 0xFF, 0x8E, 0x0E, 0xBB, 0x90,
0xAE, 0x13, 0x06, 0xF5, 0x1C, 0x4E, 0x52, 0xF7
}
};
/* Generate and return single random byte */
static unsigned char randomByte(void){
unsigned char t;
sqlite3Prng.i++;
t = sqlite3Prng.s[sqlite3Prng.i];
sqlite3Prng.j += t;
sqlite3Prng.s[sqlite3Prng.i] = sqlite3Prng.s[sqlite3Prng.j];
sqlite3Prng.s[sqlite3Prng.j] = t;
t += sqlite3Prng.s[sqlite3Prng.i];
return sqlite3Prng.s[t];
}
/*
** Return N random bytes.
*/
static void randomBlob(int nBuf, unsigned char *zBuf){
int i;
for(i=0; i<nBuf; i++){
zBuf[i] = randomByte();
}
}
/*
** End of code copied from SQLite.
*************************************************************************/
int testPrngInit(void){
randomBlob(sizeof(r.aRand1), (unsigned char *)r.aRand1);
randomBlob(sizeof(r.aRand2), (unsigned char *)r.aRand2);
randomBlob(sizeof(r.aRand3), (unsigned char *)r.aRand3);
return 0;
}
unsigned int testPrngValue(unsigned int iVal){
return
r.aRand1[iVal & 0x000007FF] ^
r.aRand2[(iVal>>11) & 0x000007FF] ^
r.aRand3[(iVal>>22) & 0x000003FF]
;
}
void testPrngArray(unsigned int iVal, unsigned int *aOut, int nOut){
int i;
for(i=0; i<nOut; i++){
aOut[i] = testPrngValue(iVal+i);
}
}
void testPrngString(unsigned int iVal, char *aOut, int nOut){
int i;
for(i=0; i<(nOut-1); i++){
aOut[i] = 'a' + (testPrngValue(iVal+i) % 26);
}
aOut[i] = '\0';
}
void testErrorInit(int argc, char **argv){
g.argc = argc;
g.argv = argv;
}
void testPrintError(const char *zFormat, ...){
va_list ap;
va_start(ap, zFormat);
vfprintf(stderr, zFormat, ap);
va_end(ap);
}
void testPrintFUsage(const char *zFormat, ...){
va_list ap;
va_start(ap, zFormat);
fprintf(stderr, "Usage: %s %s ", g.argv[0], g.argv[1]);
vfprintf(stderr, zFormat, ap);
fprintf(stderr, "\n");
va_end(ap);
}
void testPrintUsage(const char *zArgs){
testPrintError("Usage: %s %s %s\n", g.argv[0], g.argv[1], zArgs);
}
static void argError(void *aData, const char *zType, int sz, const char *zArg){
struct Entry { const char *zName; };
struct Entry *pEntry;
const char *zPrev = 0;
testPrintError("unrecognized %s \"%s\": must be ", zType, zArg);
for(pEntry=(struct Entry *)aData;
pEntry->zName;
pEntry=(struct Entry *)&((unsigned char *)pEntry)[sz]
){
if( zPrev ){ testPrintError("%s, ", zPrev); }
zPrev = pEntry->zName;
}
testPrintError("or %s\n", zPrev);
}
int testArgSelectX(
void *aData,
const char *zType,
int sz,
const char *zArg,
int *piOut
){
struct Entry { const char *zName; };
struct Entry *pEntry;
int nArg = strlen(zArg);
int i = 0;
int iOut = -1;
int nOut = 0;
for(pEntry=(struct Entry *)aData;
pEntry->zName;
pEntry=(struct Entry *)&((unsigned char *)pEntry)[sz]
){
int nName = strlen(pEntry->zName);
if( nArg<=nName && memcmp(pEntry->zName, zArg, nArg)==0 ){
iOut = i;
if( nName==nArg ){
nOut = 1;
break;
}
nOut++;
}
i++;
}
if( nOut!=1 ){
argError(aData, zType, sz, zArg);
}else{
*piOut = iOut;
}
return (nOut!=1);
}
struct timeval zero_time;
void testTimeInit(void){
gettimeofday(&zero_time, 0);
}
int testTimeGet(void){
struct timeval now;
gettimeofday(&now, 0);
return
(((int)now.tv_sec - (int)zero_time.tv_sec)*1000) +
(((int)now.tv_usec - (int)zero_time.tv_usec)/1000);
}
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