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119 lines
3.6 KiB
C
119 lines
3.6 KiB
C
/* -*- mode: C; c-basic-offset: 4 -*- */
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// verify that cachetable prefetch multiple blocks hits the cachetable size limit
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// and flushes eventually happen.
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#ident "$Id$"
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#ident "Copyright (c) 2007-2011 Tokutek Inc. All rights reserved."
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#include "includes.h"
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#include "test.h"
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static int flush_calls = 0;
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static int flush_evict_calls = 0;
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static int evicted_keys = 0;
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static void
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flush (CACHEFILE f __attribute__((__unused__)),
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int UU(fd),
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CACHEKEY k,
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void *v __attribute__((__unused__)),
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void** UU(dd),
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void *e __attribute__((__unused__)),
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PAIR_ATTR s __attribute__((__unused__)),
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PAIR_ATTR* new_size __attribute__((__unused__)),
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BOOL w,
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BOOL keep,
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BOOL f_ckpt __attribute__((__unused__)),
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BOOL UU(is_clone)
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) {
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assert(w == FALSE);
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flush_calls++;
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if (keep == FALSE) {
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flush_evict_calls++;
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if (verbose) printf("%s:%d flush %"PRId64"\n", __FUNCTION__, __LINE__, k.b);
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evicted_keys |= 1 << k.b;
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}
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}
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static int fetch_calls = 0;
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static int
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fetch (CACHEFILE f __attribute__((__unused__)),
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int UU(fd),
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CACHEKEY k,
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u_int32_t fullhash __attribute__((__unused__)),
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void **value,
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void** UU(dd),
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PAIR_ATTR *sizep,
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int *dirtyp,
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void *extraargs __attribute__((__unused__))
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) {
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fetch_calls++;
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if (verbose) printf("%s:%d %"PRId64"\n", __FUNCTION__, __LINE__, k.b);
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*value = 0;
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*sizep = make_pair_attr(1);
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*dirtyp = 0;
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return 0;
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}
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// Note: cachetable_size_limit must be a power of 2
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static void cachetable_prefetch_flowcontrol_test (int cachetable_size_limit) {
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int r;
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CACHETABLE ct;
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r = toku_create_cachetable(&ct, cachetable_size_limit, ZERO_LSN, NULL_LOGGER); assert(r == 0);
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char fname1[] = __SRCFILE__ "test1.dat";
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unlink(fname1);
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CACHEFILE f1;
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r = toku_cachetable_openf(&f1, ct, fname1, O_RDWR|O_CREAT, S_IRWXU|S_IRWXG|S_IRWXO); assert(r == 0);
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int i;
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CACHETABLE_WRITE_CALLBACK wc = def_write_callback(NULL);
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wc.flush_callback = flush;
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// prefetch keys 0 .. N-1. they should all fit in the cachetable
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for (i=0; i<cachetable_size_limit; i++) {
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CACHEKEY key = make_blocknum(i);
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u_int32_t fullhash = toku_cachetable_hash(f1, key);
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r = toku_cachefile_prefetch(f1, key, fullhash, wc, fetch, def_pf_req_callback, def_pf_callback, 0, NULL);
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toku_cachetable_verify(ct);
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}
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// wait for all of the blocks to be fetched
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sleep(10);
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// prefetch keys N .. 2*N-1. 0 .. N-1 should be evicted.
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for (i=i; i<2*cachetable_size_limit; i++) {
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CACHEKEY key = make_blocknum(i);
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u_int32_t fullhash = toku_cachetable_hash(f1, key);
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r = toku_cachefile_prefetch(f1, key, fullhash, wc, fetch, def_pf_req_callback, def_pf_callback, 0, NULL);
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toku_cachetable_verify(ct);
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// sleep(1);
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}
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// wait for everything to finish
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sleep(10);
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#if 0 //If we flush using reader thread.
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assert(flush_evict_calls == cachetable_size_limit);
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assert(evicted_keys == (1 << cachetable_size_limit)-1);
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#else
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assert(flush_evict_calls == 0);
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assert(evicted_keys == 0);
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#endif
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char *error_string;
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r = toku_cachefile_close(&f1, &error_string, FALSE, ZERO_LSN); assert(r == 0);
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if (verbose) printf("%s:%d 0x%x 0x%x\n", __FUNCTION__, __LINE__,
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evicted_keys, (1 << (2*cachetable_size_limit))-1);
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assert(evicted_keys == (1 << (2*cachetable_size_limit))-1);
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r = toku_cachetable_close(&ct); assert(r == 0 && ct == 0);
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}
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int
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test_main(int argc, const char *argv[]) {
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default_parse_args(argc, argv);
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cachetable_prefetch_flowcontrol_test(8);
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return 0;
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}
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