test/dbapi/Connection/isotest12.c

   1 #include "common.h"
   2 //READ_UNCOMMITTED isolation testing
   3 // T1 and T2 both doing select for same tuple
   4
   5 void* runTest1(void *p);
   6 void* runTest2(void *p);
   7 int *p1RetVal = NULL;
   8 int *p2RetVal = NULL;
   9 int main()
  10 {
  11
  12     Connection conn;
  13     DbRetVal rv = conn.open("root", "manager");
  14     if (rv != OK) { printf("Error during connection %d\n", rv); return 1; }
  15     DatabaseManager *dbMgr = conn.getDatabaseManager();
  16     int ret = createTable(dbMgr);
  17     if (ret != 0) { return 1; }
  18
  19     rv = conn.startTransaction();
  20     if (rv != OK) {printf ("Unable to start trans\n"); return 1; }
  21     rv = insert(dbMgr, 100, false);
  22     if (rv != OK) { printf("Unable to insert\n"); return 2; }
  23     conn.commit();
  24     printf("Tuple inserted\n");
  25
  26     pthread_t thr[2];
  27     int *status1, *status2;
  28     pthread_create (&thr[0], NULL, &runTest1,  NULL);
  29     pthread_create (&thr[1], NULL, &runTest2,  NULL);
  30     printf("All threads started\n");
  31
  32     pthread_join(thr[0], (void**)&status1);
  33     pthread_join(thr[1], (void**)&status2);
  34     ret = 0;
  35     if (*status1 != 0 || *status2 != 0) ret = 1;
  36     dbMgr->dropTable("t1");
  37     conn.close();
  38     if (p1RetVal) { delete p1RetVal; p1RetVal = NULL; }
  39     if (p2RetVal) { delete p2RetVal; p2RetVal = NULL; }
  40     return ret;
  41 }
  42 void* runTest1(void *message)
  43 {
  44     Connection conn;
  45     DbRetVal rv = conn.open("root", "manager");
  46     if (rv != OK) { printf("Error during connection %d\n", rv); return NULL; }
  47     DatabaseManager *dbMgr = conn.getDatabaseManager();
  48     if (dbMgr == NULL) { printf("Auth failed\n"); return NULL;}
  49     rv = conn.startTransaction(READ_UNCOMMITTED);
  50     if (rv != OK) return NULL;
  51     printf("Thread and pid is %d %lu\n", os::getpid(), os::getthrid());
  52     p1RetVal = new int();
  53     *p1RetVal = 0;
  54     rv = select(dbMgr, 100, true);
  55     if (rv != OK) { printf("Test Failed:first thread failed to select\n"); *p1RetVal = 1; }
  56
  57     conn.commit();
  58     rv  = conn.close();
  59     pthread_exit(p1RetVal);
  60 }
  61 void* runTest2(void *message)
  62 {
  63     Connection conn;
  64     DbRetVal rv = conn.open("root", "manager");
  65     if (rv != OK) { printf("Error during connection %d\n", rv); return NULL; }
  66     DatabaseManager *dbMgr = conn.getDatabaseManager();
  67     if (dbMgr == NULL) { printf("Auth failed\n"); return NULL;}
  68     rv = conn.startTransaction(READ_UNCOMMITTED);
  69     if (rv != OK) return NULL;
  70     printf("Thread and pid is %d %lu\n", os::getpid(), os::getthrid());
  71
  72     p2RetVal = new int();
  73     *p2RetVal = 0;
  74     rv = select(dbMgr, 100, false);
  75     if (rv != OK) { printf("Test Failed:second thread failed to select\n"); *p2RetVal = 1; }
  76     conn.commit();
  77     conn.close();
  78     pthread_exit(p2RetVal);
  79 }
  80