git.m6w6.name Git - awesomized/libmemcached/blob - test/tests/memcached/haldenbrand.cpp

   1 #include "test/lib/common.hpp"
   2 #include "test/lib/MemcachedCluster.hpp"
   3
   4 /* Test case provided by Cal Haldenbrand */
   5
   6 #define HALDENBRAND_KEY_COUNT 3000U // * 1024576
   7 #define HALDENBRAND_FLAG_KEY 99 // * 1024576
   8
   9 #include <cstdlib>
  10
  11 TEST_CASE("memcached_haldenbrand_nblock_tcp_ndelay") {
  12   pair<string, MemcachedCluster> tests[] = {
  13       {"network", MemcachedCluster::network()},
  14   };
  15
  16   for (auto &[name, test] : tests) {
  17     REQUIRE_SUCCESS(memcached_behavior_set(&test.memc, MEMCACHED_BEHAVIOR_NO_BLOCK, true));
  18     REQUIRE_SUCCESS(memcached_behavior_set(&test.memc, MEMCACHED_BEHAVIOR_TCP_NODELAY, true));
  19   }
  20
  21   LOOPED_SECTION(tests) {
  22     auto memc = &test.memc;
  23
  24     /* We just keep looking at the same values over and over */
  25     srandom(10);
  26
  27     /* add key */
  28     unsigned long long total = 0;
  29     for (uint32_t x = 0; total < 20 * 1024576; x++) {
  30       uint32_t size = (uint32_t) (rand() % (5 * 1024)) + 400;
  31       char randomstuff[6 * 1024];
  32       memset(randomstuff, 0, 6 * 1024);
  33       REQUIRE(size < 6 * 1024); /* Being safe here */
  34
  35       for (uint32_t j = 0; j < size; j++) {
  36         randomstuff[j] = (signed char) ((rand() % 26) + 97);
  37       }
  38
  39       total += size;
  40       char key[MEMCACHED_MAXIMUM_INTEGER_DISPLAY_LENGTH + 1];
  41       int key_length = snprintf(key, sizeof(key), "%u", x);
  42       REQUIRE_SUCCESS(memcached_set(memc, key, key_length,
  43           randomstuff, strlen(randomstuff),
  44           time_t(0), HALDENBRAND_FLAG_KEY
  45       ));
  46     }
  47     REQUIRE(total > HALDENBRAND_KEY_COUNT);
  48
  49     size_t total_value_length = 0;
  50     for (uint32_t x = 0, errors = 0; total_value_length < 24576; x++) {
  51       uint32_t flags = 0;
  52       size_t val_len = 0;
  53
  54       char key[MEMCACHED_MAXIMUM_INTEGER_DISPLAY_LENGTH + 1];
  55       int key_length = snprintf(key, sizeof(key), "%u", x);
  56
  57       memcached_return_t rc;
  58       char *getval = memcached_get(memc, key, key_length, &val_len, &flags, &rc);
  59       if (memcached_failed(rc)) {
  60         if (rc == MEMCACHED_NOTFOUND) {
  61           errors++;
  62         } else {
  63           REQUIRE(rc);
  64         }
  65
  66         continue;
  67       }
  68       REQUIRE(uint32_t(HALDENBRAND_FLAG_KEY) == flags);
  69       REQUIRE(getval);
  70
  71       total_value_length += val_len;
  72       errors = 0;
  73       ::free(getval);
  74     }
  75
  76
  77     std::vector<size_t> key_lengths;
  78     key_lengths.resize(HALDENBRAND_KEY_COUNT);
  79     std::vector<char *> keys;
  80     keys.resize(key_lengths.size());
  81     for (uint32_t x = 0; x < key_lengths.size(); x++) {
  82       char key[MEMCACHED_MAXIMUM_INTEGER_DISPLAY_LENGTH + 1];
  83       int key_length = snprintf(key, sizeof(key), "%u", x);
  84       REQUIRE(key_length > 0);
  85       REQUIRE(key_length < MEMCACHED_MAXIMUM_INTEGER_DISPLAY_LENGTH + 1);
  86       keys[x] = strdup(key);
  87       key_lengths[x] = key_length;
  88     }
  89
  90     REQUIRE_SUCCESS(memcached_mget(memc, &keys[0], &key_lengths[0], key_lengths.size()));
  91
  92     unsigned int keys_returned;
  93     REQUIRE(memcached_success(fetch_all_results(memc, keys_returned)));
  94     REQUIRE(HALDENBRAND_KEY_COUNT == keys_returned);
  95
  96     for (auto key : keys) {
  97       free(key);
  98     }
  99   }
 100 }