int main(void) { /* * Required on some systems to pull in parts of the library * for which we have data references. */ testutil_check(__wt_library_init()); check("iii", 0, 101, -99); check("3i", 0, 101, -99); check("iS", 42, "forty two"); check("s", "a big string"); #if 0 /* TODO: need a WT_ITEM */ check("u", r"\x42" * 20) check("uu", r"\x42" * 10, r"\x42" * 10) #endif return (0); }
/* * wiredtiger_open -- * Main library entry point: open a new connection to a WiredTiger * database. */ int wiredtiger_open(const char *home, WT_EVENT_HANDLER *event_handler, const char *config, WT_CONNECTION **wt_connp) { static WT_CONNECTION stdc = { __conn_close, __conn_reconfigure, __conn_get_home, __conn_is_new, __conn_open_session, __conn_load_extension, __conn_add_data_source, __conn_add_collator, __conn_add_compressor, __conn_add_extractor }; static struct { const char *name; uint32_t flag; } *ft, directio_types[] = { { "data", WT_DIRECTIO_DATA }, { "log", WT_DIRECTIO_LOG }, { NULL, 0 } }; WT_CONFIG subconfig; WT_CONFIG_ITEM cval, skey, sval; WT_CONNECTION_IMPL *conn; WT_DECL_RET; WT_ITEM *cbuf, expath, exconfig; WT_SESSION_IMPL *session; const char *cfg[] = { __wt_confdfl_wiredtiger_open, config, NULL, NULL, NULL }; int exist; *wt_connp = NULL; session = NULL; cbuf = NULL; WT_CLEAR(expath); WT_CLEAR(exconfig); WT_RET(__wt_library_init()); WT_RET(__wt_calloc_def(NULL, 1, &conn)); conn->iface = stdc; /* * Immediately link the structure into the connection structure list: * the only thing ever looked at on that list is the database name, * and a NULL value is fine. */ __wt_spin_lock(NULL, &__wt_process.spinlock); TAILQ_INSERT_TAIL(&__wt_process.connqh, conn, q); __wt_spin_unlock(NULL, &__wt_process.spinlock); session = conn->default_session = &conn->dummy_session; session->iface.connection = &conn->iface; session->name = "wiredtiger_open"; __wt_event_handler_set(session, event_handler); /* Remaining basic initialization of the connection structure. */ WT_ERR(__wt_connection_init(conn)); /* Check the configuration strings. */ WT_ERR(__wt_config_check( session, __wt_confchk_wiredtiger_open, config, 0)); /* Get the database home. */ WT_ERR(__conn_home(session, home, cfg)); /* Make sure no other thread of control already owns this database. */ WT_ERR(__conn_single(session, cfg)); /* Read the database-home configuration file. */ WT_ERR(__conn_config_file(session, cfg, &cbuf)); /* Read the environment variable configuration. */ WT_ERR(__conn_config_env(session, cfg)); WT_ERR(__wt_config_gets(session, cfg, "hazard_max", &cval)); conn->hazard_max = (uint32_t)cval.val; WT_ERR(__wt_config_gets(session, cfg, "session_max", &cval)); conn->session_size = (uint32_t)cval.val + WT_NUM_INTERNAL_SESSIONS; WT_ERR(__wt_config_gets(session, cfg, "lsm_merge", &cval)); if (cval.val) F_SET(conn, WT_CONN_LSM_MERGE); WT_ERR(__wt_config_gets(session, cfg, "sync", &cval)); if (cval.val) F_SET(conn, WT_CONN_SYNC); WT_ERR(__wt_config_gets(session, cfg, "transactional", &cval)); if (cval.val) F_SET(conn, WT_CONN_TRANSACTIONAL); /* Configure verbose flags. */ WT_ERR(__conn_verbose_config(session, cfg)); WT_ERR(__wt_conn_cache_pool_config(session, cfg)); WT_ERR(__wt_config_gets(session, cfg, "logging", &cval)); if (cval.val != 0) WT_ERR(__wt_open( session, WT_LOG_FILENAME, 1, 0, 0, &conn->log_fh)); /* Configure direct I/O and buffer alignment. */ WT_ERR(__wt_config_gets(session, cfg, "buffer_alignment", &cval)); if (cval.val == -1) conn->buffer_alignment = WT_BUFFER_ALIGNMENT_DEFAULT; else conn->buffer_alignment = (size_t)cval.val; #ifndef HAVE_POSIX_MEMALIGN if (conn->buffer_alignment != 0) WT_ERR_MSG(session, EINVAL, "buffer_alignment requires posix_memalign"); #endif /* * Configuration: direct_io, mmap, statistics. */ WT_ERR(__wt_config_gets(session, cfg, "direct_io", &cval)); for (ft = directio_types; ft->name != NULL; ft++) { ret = __wt_config_subgets(session, &cval, ft->name, &sval); if (ret == 0) { if (sval.val) FLD_SET(conn->direct_io, ft->flag); } else if (ret != WT_NOTFOUND) goto err; } WT_ERR(__wt_config_gets(session, cfg, "mmap", &cval)); conn->mmap = cval.val == 0 ? 0 : 1; WT_ERR(__wt_config_gets(session, cfg, "statistics", &cval)); conn->statistics = cval.val == 0 ? 0 : 1; /* Load any extensions referenced in the config. */ WT_ERR(__wt_config_gets(session, cfg, "extensions", &cval)); WT_ERR(__wt_config_subinit(session, &subconfig, &cval)); while ((ret = __wt_config_next(&subconfig, &skey, &sval)) == 0) { WT_ERR(__wt_buf_fmt( session, &expath, "%.*s", (int)skey.len, skey.str)); if (sval.len > 0) WT_ERR(__wt_buf_fmt(session, &exconfig, "entry=%.*s\n", (int)sval.len, sval.str)); WT_ERR(conn->iface.load_extension(&conn->iface, expath.data, (sval.len > 0) ? exconfig.data : NULL)); } WT_ERR_NOTFOUND_OK(ret); /* * Open the connection; if that fails, the connection handle has been * destroyed by the time the open function returns. */ if ((ret = __wt_connection_open(conn, cfg)) != 0) { conn = NULL; WT_ERR(ret); } /* Open the default session. */ WT_ERR(__wt_open_session(conn, 1, NULL, NULL, &conn->default_session)); session = conn->default_session; /* * Check on the turtle and metadata files, creating them if necessary * (which avoids application threads racing to create the metadata file * later). */ WT_ERR(__wt_meta_turtle_init(session, &exist)); if (!exist) { /* * We're single-threaded, but acquire the schema lock * regardless: the lower level code checks that it is * appropriately synchronized. */ WT_WITH_SCHEMA_LOCK(session, ret = __wt_schema_create(session, WT_METADATA_URI, NULL)); WT_ERR(ret); } WT_ERR(__wt_metadata_open(session)); /* If there's a hot-backup file, load it. */ WT_ERR(__wt_metadata_load_backup(session)); /* * XXX LSM initialization. * This is structured so that it could be moved to an extension. */ WT_ERR(__wt_lsm_init(&conn->iface, NULL)); STATIC_ASSERT(offsetof(WT_CONNECTION_IMPL, iface) == 0); *wt_connp = &conn->iface; /* * Destroying the connection on error will destroy our session handle, * cleanup using the session handle first, then discard the connection. */ err: if (cbuf != NULL) __wt_buf_free(session, cbuf); __wt_buf_free(session, &expath); __wt_buf_free(session, &exconfig); if (ret != 0 && conn != NULL) WT_TRET(__wt_connection_destroy(conn)); /* Let the server threads proceed. */ if (ret == 0) conn->connection_initialized = 1; return (ret); }
void test_value(int64_t val) { const uint8_t *cp; uint8_t buf[WT_INTPACK64_MAXSIZE + 8]; /* -Werror=array-bounds */ uint8_t *p; int64_t sinput, soutput; uint64_t uinput, uoutput; size_t used_len; memset(buf, 0xff, sizeof(buf)); /* -Werror=maybe-uninitialized */ sinput = val; soutput = 0; /* -Werror=maybe-uninitialized */ /* * Required on some systems to pull in parts of the library * for which we have data references. */ testutil_check(__wt_library_init()); p = buf; testutil_check(__wt_vpack_int(&p, sizeof(buf), sinput)); used_len = (size_t)(p - buf); testutil_assert(used_len <= WT_INTPACK64_MAXSIZE); cp = buf; testutil_check(__wt_vunpack_int(&cp, used_len, &soutput)); /* Ensure we got the correct value back */ if (sinput != soutput) { fprintf(stderr, "mismatch %" PRId64 ", %" PRId64 "\n", sinput, soutput); abort(); } /* Ensure that decoding used the correct amount of buffer */ if (cp != p) { fprintf(stderr, "Unpack consumed wrong size for %" PRId64 ", expected %" WT_SIZET_FMT ", got %" WT_SIZET_FMT "\n", sinput, used_len, cp > p ? used_len + (size_t)(cp - p) : /* More than buf used */ used_len - (size_t)(p - cp)); /* Less than buf used */ abort(); } /* Test unsigned, convert negative into bigger positive values */ uinput = (uint64_t)val; p = buf; testutil_check(__wt_vpack_uint(&p, sizeof(buf), uinput)); used_len = (size_t)(p - buf); testutil_assert(used_len <= WT_INTPACK64_MAXSIZE); cp = buf; testutil_check(__wt_vunpack_uint(&cp, sizeof(buf), &uoutput)); /* Ensure we got the correct value back */ if (sinput != soutput) { fprintf(stderr, "mismatch %" PRId64 ", %" PRId64 "\n", sinput, soutput); abort(); } /* Ensure that decoding used the correct amount of buffer */ if (cp != p) { fprintf(stderr, "Unpack consumed wrong size for %" PRId64 ", expected %" WT_SIZET_FMT ", got %" WT_SIZET_FMT "\n", sinput, used_len, cp > p ? used_len + (size_t)(cp - p) : used_len - (size_t)(p - cp)); abort(); } }