int main(int argc, char *argv[])
{
ub1 *LobReadBuf=NULL;
ub4 *KeysValueBuf=NULL;
OCIStmt *stmtsellochp = 0;
OCIBind *bndv1 = 0;
OCIDefine *defv1 = 0;
OCILobLocator *lobloc=0;
static text *stmt_sellocstr = (text *)"SELECT DOCUMENT FROM FOO WHERE PKEY = :MYPKEY";
int i, j, q; /* loop variables */
sword orc; /* Return value */
ub4 LobSize = 0; /* Size of Lob to be selected */
ub4 Iter=1; /* How many times to repeat before exiting */
ub4 NumRows=0; /* Num of Rows to select in each iteration */
ub4 trace_flag=0; /* 0 is default, means no sql_trace */
int UserNum=1; /* used in multiuser tests */
ub4 KeyStartValue=0; /* primary key generator, derived from USERKEYRANGE * UserNum */
ub4 KeyMaxValue=0; /* derived from StartValue + NumRows*Iter */
sb8 KeyValue=0; /* random number between StartValue and MaxValue */
int LobType; /* to check Lobtype = BASICFILE or SECUREFILE */
int ReqTime; /* argument to GetDbTime function ReqTime=1 elasped, ReqTime=0 cpu time */
ub4 StartTimeTot;
ub4 StartTime;
ub4 StartCpu;
ub4 EndTimeTot;
ub4 EndTime;
ub4 EndCpu;
ub4 ElapsedTimeTot;
ub4 ElapsedTime;
ub4 ElapsedCpu;
ub4 AvgElapsed;
ub4 AvgCpu;
float AvgRate;
if (argc <= 5) {
printf("Usage: %s <uid> <pwd> <LobSize(bytes)> <NumRows> <Iteration> <UserNum> trace_flag(1|0>\n\r", argv[0]);
exit(-1);
}
/* process command line args */
LobSize=atoi(argv[3]);
NumRows=atoi(argv[4]);
Iter=atoi(argv[5]);
if (argc > 6 )
UserNum=atoi(argv[6]); /* Used in multiuser run, to make unique pkeys */
if (argc > 7 )
trace_flag=atoi(argv[7]);
/* Allocate OCI handles */
if (AllocateHandles(0)) {
printf("AllocateHandles failed \n");
exit(-1);
}
/* Login using argv[1] and argv[2] */
if ( (ConnectToDb(argv[1], argv[2])) != OCI_SUCCESS ) {
printf("ConnectToDb failed \n");
CheckErr(errhp, orc);
exit(-1);
}
srand48(LobSize);
printf("Using LobSize=%d bytes, NumRows=%d, calculated total memorysize=%d bytes\r\n", LobSize, NumRows, LobSize*NumRows);
if((LobSize==0)||(NumRows<1))
{
printf("Parameter error\r\n");
exit(-1);
}
/* Memory allocation section */
if ( (LobReadBuf=(ub1 *)malloc(LobSize)) == NULL ) {
printf("Error allocating memory for LobReadBuf\r\n");
exit(-1);
}
/* Initialize allocated memory and setup Read buffer as 0000000 */
memset(LobReadBuf,0,LobSize); /* setup Lob read buffer as 0 */
KeyStartValue=UserNum*USERKEYRANGE; /* Value is set as per UserNum */
KeyMaxValue = KeyStartValue + (NumRows*Iter);
/* SQL_TRACE section */
if (trace_flag == 1) {
printf("Begin tracing...\n");
TurnOnSqlTrace();
}
printf("Trying to Select %d Rows with Lob size of %d Bytes)\r\n", NumRows, LobSize);
printf("Selecting data.....please wait\r\n");
/* allocate a statement handle for SELECT OF LOB LOCATOR and prepare it */
CheckErr(errhp, OCIHandleAlloc(envhp, (dvoid **) &stmtsellochp, OCI_HTYPE_STMT,
(size_t) 0, (dvoid **) 0));
CheckErr(errhp, OCIStmtPrepare(stmtsellochp, errhp, (CONST text *) stmt_sellocstr,
strlen((char *) stmt_sellocstr), OCI_NTV_SYNTAX, OCI_DEFAULT));
/* Allocate Lob Locator descriptor */
CheckErr(errhp, OCIDescriptorAlloc(envhp, (dvoid **)&lobloc, (ub4) OCI_DTYPE_LOB, (size_t) 0, (dvoid **) 0)) ;
CheckErr(errhp, OCIBindByName(stmtsellochp, (OCIBind **) &bndv1, errhp,
(text *)":MYPKEY", (sb4) 7, &KeyValue, (sb4) sizeof(ub4), SQLT_INT,
(dvoid *) 0, (ub2 *) 0, (ub2 *) 0, (ub4) 0, (ub4 *) 0, OCI_DEFAULT));
CheckErr(errhp, OCIDefineByPos (stmtsellochp, (OCIDefine **) &defv1, errhp,
1, &lobloc, 0 , SQLT_BLOB,
(dvoid *)0, (ub2 *)0, (ub2 *)0, OCI_DEFAULT));
/* Allocate and Prepare statement to get cpu and elapsed time using dbms_utility */
PrepareDbTime();
for (q = 0 ; q < Iter ; q ++ ) {
StartTime = GetDbTime(1);
if ( q == 1) { /* Discard q=0 as warm up */
StartTimeTot = StartTime;
StartCpu = GetDbTime(0);
}
for (i=0; i < NumRows; i++) {
KeyValue=(lrand48 () % (KeyMaxValue-KeyStartValue)) + KeyStartValue ;
CheckErr(errhp, OCIStmtExecute(svchp, stmtsellochp, errhp, (ub4) 1, (ub4) 0,
(CONST OCISnapshot *) 0, (OCISnapshot *) 0, OCI_DEFAULT));
/*
CheckErr(errhp, OCILobGetLength(svchp, errhp, lobloc, &LobReadLen));
printf ("Length of the lob to read %d \n", LobReadLen);
*/
/* Got the Locator, now start Reading data using it */
CheckErr(errhp, OCILobRead(svchp, errhp, lobloc, &LobSize,
1, &LobReadBuf[0], (ub4) LobSize,
(dvoid *)0, NULL, (ub2) 0, (ub1) SQLCS_IMPLICIT));
}
EndTime = GetDbTime(1);
ElapsedTime = (EndTime - StartTime)*10 ;
printf("Elapsed time for Iter %d Select (%d rows) in msecs: %ld\n", q+1, NumRows, ElapsedTime);
} /* end of Iteration 'for' loop */
EndTimeTot = EndTime;
ElapsedTimeTot = (EndTimeTot-StartTimeTot)*10;
EndCpu = GetDbTime(0);
/* cpu time is centisecond, x10 to report in msec, not accurate, doing it for consistency */
ElapsedCpu = (EndCpu - StartCpu) * 10;
printf ("--------------------------------------------------------------------------- \n");
printf("Total Elapsed time for select (%d rows) in msecs (excluding Iter 1) : %ld\n", (NumRows*(Iter-1)), ElapsedTimeTot);
if (Iter > 1) {
AvgElapsed=ElapsedTimeTot/(Iter-1);
AvgCpu=ElapsedCpu/(Iter-1);
printf("Avg Elapsed time for a Iteration (%d rows) in msecs (excluding Iter 1) : %ld\n", NumRows, AvgElapsed );
printf("Avg CPU time for a Iteration (%d rows) in msecs (excluding Iter 1) : %ld\n", NumRows, AvgCpu );
/* x1000 to report in seconds from mseconds */
AvgRate=((float)LobSize*(float)NumRows*1000)/((float)AvgElapsed*1024*1024);
printf("Avg Read Rate for (%d rows) (excluding Iter 1) : %0.2f (Mb/sec)\n", NumRows, AvgRate);
}
LobType=CheckLobType();
if (LobType == 1)
printf ("SECUREFILE Lob Read Test Finished (Using OCILobRead API)\n");
else
printf ("BASICFILE Lob Read Test Finished (Using OCILobRead API)\n");
printf("Selected LobSize=%d bytes, NumRows=%d, Iter=%d \r\n", LobSize, NumRows, Iter );
printf ("--------------------------------------------------------------------------- \n");
return(0);
} /* end of Main */
void* OpMmapSegment::AllocateReserved(UINT16 idx, UINT16 pages,
OpMemoryClass type)
{
OP_ASSERT(page_handle[idx].flag == OP_MMAP_FLAG_RESERVED);
OP_ASSERT(page_handle[idx].size >= pages);
#ifdef DEBUG_ENABLE_OPASSERT
unsigned int endmarker = idx + page_handle[idx].size - 1;
OP_ASSERT(page_handle[endmarker].flag == OP_MMAP_FLAG_RESERVED);
OP_ASSERT(page_handle[endmarker].size == page_handle[idx].size);
#endif
//
// Identify and allocate the memory area that needs to be
// requested with VirtualAlloc()
//
void* ptr = (void*)(base + idx * pagesize);
unsigned int bytes = pages * pagesize;
if ( OpMemory_VirtualAlloc(mseg, ptr, bytes, type) )
{
//
// Succeeded, but we need to make sure the two handles of the
// new block is available, and the the first handle in the
// following block.
//
if ( AllocateHandles(idx + pages) )
{
//
// Main block and handles allocated ok.
//
// Recordthe number of remaining pages in the block. This
// number will always be 0 or positive.
//
unsigned int pages2 = page_handle[idx].size - pages;
// Unlink from reserved chain, and set new details
Unlink(idx);
SetDetails(idx, pages, OP_MMAP_FLAG_ALLOCATED);
page_handle[idx].type = type;
// If there are any remaining pages, add them to reserved chain
if ( pages2 )
{
// Create a new reserved block for remainder of block
unsigned int idx2 = idx + pages;
unsigned int cls2 = ComputeSizeClass(pages2);
SetDetails(idx2, pages2, OP_MMAP_FLAG_RESERVED);
Link(OP_MMAP_RESERVED_SIZECLASS + cls2, idx2);
}
allocated_pages += pages;
goto success;
}
//
// Could not allocate handles, free the previously
// allocated memory and fall through into failure.
//
OpMemory_VirtualFree(mseg, ptr, bytes, type);
}
// Failure
ptr = 0;
success:
return ptr;
}
