refs #61, remove test helper function toku_cachefile_flush,

fix tests that use it to not need it

ft/cachetable.cc

@@ -502,18 +502,6 @@ void toku_cachefile_close(CACHEFILE *cfp, bool oplsn_valid, LSN oplsn) {
     toku_free(cf);
 }
 
-//
-// This client calls this function to flush all PAIRs belonging to
-// a cachefile from the cachetable. The client must ensure that
-// while this function is called, no other thread does work on the 
-// cachefile.
-//
-void toku_cachefile_flush (CACHEFILE cf) {
-    bjm_wait_for_jobs_to_finish(cf->bjm);
-    CACHETABLE ct = cf->cachetable;
-    cachetable_flush_cachefile(ct, cf);
-}
-
 // This hash function comes from Jenkins:  http://burtleburtle.net/bob/c/lookup3.c
 // The idea here is to mix the bits thoroughly so that we don't have to do modulo by a prime number.
 // Instead we can use a bitmask on a table of size power of two.
@@ -2440,10 +2428,10 @@ static void remove_all_pairs_for_close(CACHETABLE ct, CACHEFILE cf) {
 }
 
 static void verify_cachefile_flushed(CACHETABLE ct UU(), CACHEFILE cf UU()) {
+#ifdef TOKU_DEBUG_PARANOID
     // assert here that cachefile is flushed by checking
     // pair_list and finding no pairs belonging to this cachefile
     // Make a list of pairs that belong to this cachefile.
-#ifdef TOKU_DEBUG_PARANOID
     if (cf) {
         ct->list.write_list_lock();
         // assert here that cachefile is flushed by checking
@@ -2493,9 +2481,6 @@ static void cachetable_flush_cachefile(CACHETABLE ct, CACHEFILE cf) {
     remove_all_pairs_for_close(ct, cf);
 
     verify_cachefile_flushed(ct, cf);
-    if (cf) {
-        bjm_reset(cf->bjm);
-    }
 }
 
 /* Requires that no locks be held that are used by the checkpoint logic */

ft/cachetable.h

@@ -524,12 +524,6 @@ int toku_cachefile_count_pinned (CACHEFILE, int /*printthem*/ );
 // If oplsn_valid is true then use oplsn as the LSN of the close instead of asking the logger.  oplsn_valid being true is only allowed during recovery, and requires that you are removing the last reference (otherwise the lsn wouldn't make it in.)
 void toku_cachefile_close (CACHEFILE*, bool oplsn_valid, LSN oplsn);
 
-// Flush the cachefile.
-// Effect: Flush everything owned by the cachefile from the cachetable. All dirty
-// blocks are written.  All unpinned blocks are evicted from the cachetable.
-// Returns: 0 if success, otherwise returns an error number.
-void toku_cachefile_flush(CACHEFILE);
-
 // Return on success (different from pread and pwrite)
 //int cachefile_pwrite (CACHEFILE, const void *buf, size_t count, toku_off_t offset);
 //int cachefile_pread  (CACHEFILE, void *buf, size_t count, toku_off_t offset);

ft/tests/cachetable-flush-during-cleaner.cc

@@ -91,6 +91,8 @@ PATENT RIGHTS GRANT:
 
 CACHEFILE f1;
 
+bool should_close;
+
 static int
 cleaner_callback(
     void* UU(ftnode_pv),
@@ -99,13 +101,18 @@ cleaner_callback(
     void* UU(extraargs)
     )
 {
-    int r = toku_test_cachetable_unpin(f1,blocknum, fullhash,CACHETABLE_CLEAN,make_pair_attr(8));
+    should_close = true;
+    sleep(2);
+    PAIR_ATTR attr = make_pair_attr(8);
+    attr.cache_pressure_size = 8;
+    int r = toku_test_cachetable_unpin(f1, blocknum, fullhash, CACHETABLE_CLEAN, attr);
     assert(r==0);
     return 0;
 }
 
 static void
 cachetable_test (void) {
+  should_close = false;
   const int test_limit = 400;
   int r;
   CACHETABLE ct;
@@ -117,20 +124,22 @@ cachetable_test (void) {
   r = toku_cachetable_openf(&f1, ct, fname1, O_RDWR|O_CREAT, S_IRWXU|S_IRWXG|S_IRWXO); assert(r == 0);
 
   void* v1;
-  //void* v2;
   long s1;
-  //long s2;
-  for (int j = 0; j < 50000; j++) {
   for (int i = 0; i < 10; i++) {
       CACHETABLE_WRITE_CALLBACK wc = def_write_callback(NULL);
       wc.cleaner_callback = cleaner_callback;
       r = toku_cachetable_get_and_pin(f1, make_blocknum(i), i, &v1, &s1, wc, def_fetch, def_pf_req_callback, def_pf_callback, true, NULL);
-          r = toku_test_cachetable_unpin(f1, make_blocknum(i), i, CACHETABLE_DIRTY, make_pair_attr(8));
+      PAIR_ATTR attr = make_pair_attr(8);
+      attr.cache_pressure_size = 8;
+      r = toku_test_cachetable_unpin(f1, make_blocknum(i), i, CACHETABLE_DIRTY, attr);
   }
-      toku_cachefile_flush(f1);
+  while (!should_close) {
+    usleep(1024);
   }
-  toku_cachetable_verify(ct);
   toku_cachefile_close(&f1, false, ZERO_LSN);
+
+
+  toku_cachetable_verify(ct);
   toku_cachetable_close(&ct);
 
 

ft/tests/cachetable-flush-test.cc

@@ -142,16 +142,13 @@ test_cachetable_def_flush (int n) {
     }
 
     // def_flush 
-    toku_cachefile_flush(f1);
-    toku_cachefile_verify(f1);
+    toku_cachefile_close(&f1, false, ZERO_LSN);
+    toku_cachefile_verify(f2);
 
-    // verify keys do not exist in f1 but do exist in f2
+    // verify keys exist in f2
     for (i=0; i<n; i++) {
         uint32_t hi;
         void *v;
-        hi = toku_cachetable_hash(f1, make_blocknum(i));
-        r = toku_cachetable_maybe_get_and_pin(f1, make_blocknum(i), hi, PL_WRITE_EXPENSIVE, &v);
-        assert(r != 0);
         hi = toku_cachetable_hash(f2, make_blocknum(i));
         r = toku_cachetable_maybe_get_and_pin(f2, make_blocknum(i), hi, PL_WRITE_EXPENSIVE, &v);
         assert(r == 0);
@@ -159,7 +156,6 @@ test_cachetable_def_flush (int n) {
         assert(r == 0);
     }
 
-    toku_cachefile_close(&f1, false, ZERO_LSN);
     toku_cachefile_close(&f2, false, ZERO_LSN);
     toku_cachetable_close(&ct);
 }

ft/tests/cachetable-kibbutz_and_flush_cachefile.cc

@@ -98,12 +98,12 @@ static void kibbutz_work(void *fe_v)
 {
     CACHEFILE CAST_FROM_VOIDP(f1, fe_v);
     sleep(2);
-    foo = true;
     // note that we make the size 16 to induce an eviction
     // once evictions are moved to their own thread, we need
     // to modify this test
     int r = toku_test_cachetable_unpin(f1, make_blocknum(1), 1, CACHETABLE_CLEAN, make_pair_attr(16));
     assert(r==0);
+    foo = true;
     remove_background_job_from_cf(f1);    
 }
 
@@ -120,16 +120,8 @@ run_test (void) {
     r = toku_cachetable_openf(&f1, ct, fname1, O_RDWR|O_CREAT, S_IRWXU|S_IRWXG|S_IRWXO); assert(r == 0);
     
     void* v1;
-    //void* v2;
     long s1;
-    //long s2;
     CACHETABLE_WRITE_CALLBACK wc = def_write_callback(NULL);
-    r = toku_cachetable_get_and_pin(f1, make_blocknum(1), 1, &v1, &s1, wc, def_fetch, def_pf_req_callback, def_pf_callback, true, NULL);
-    foo = false;
-    cachefile_kibbutz_enq(f1, kibbutz_work, f1);
-    toku_cachefile_flush(f1);
-    assert(foo);
-    assert(f1);
     
     r = toku_cachetable_get_and_pin(f1, make_blocknum(1), 1, &v1, &s1, wc, def_fetch, def_pf_req_callback, def_pf_callback, true, NULL);
     foo = false;