/*
- * Bacula Catalog Database routines specific to SQLite
- *
- * Kern Sibbald, January 2002
- */
+ Bacula® - The Network Backup Solution
-/*
- Copyright (C) 2002 Kern Sibbald and John Walker
+ Copyright (C) 2000-2011 Free Software Foundation Europe e.V.
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of
- the License, or (at your option) any later version.
+ The main author of Bacula is Kern Sibbald, with contributions from
+ many others, a complete list can be found in the file AUTHORS.
+ This program is Free Software; you can redistribute it and/or
+ modify it under the terms of version three of the GNU Affero General Public
+ License as published by the Free Software Foundation and included
+ in the file LICENSE.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
- You should have received a copy of the GNU General Public
- License along with this program; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- MA 02111-1307, USA.
+ You should have received a copy of the GNU Affero General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA.
+ Bacula® is a registered trademark of Kern Sibbald.
+ The licensor of Bacula is the Free Software Foundation Europe
+ (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
+ Switzerland, email:ftf@fsfeurope.org.
+*/
+/*
+ * Bacula Catalog Database routines specific to SQLite
+ *
+ * Kern Sibbald, January 2002
+ *
+ * Major rewrite by Marco van Wieringen, January 2010 for catalog refactoring.
*/
+#include "bacula.h"
-/* The following is necessary so that we do not include
- * the dummy external definition of DB.
- */
-#define __SQL_C /* indicate that this is sql.c */
+#if HAVE_SQLITE3
-#include "bacula.h"
#include "cats.h"
-
-#ifdef HAVE_SQLITE
+#include "bdb_priv.h"
+#include <sqlite3.h>
+#include "bdb_sqlite.h"
/* -----------------------------------------------------------------------
*
* -----------------------------------------------------------------------
*/
-extern char *working_directory;
-
-/* List of open databases */
-static BQUEUE db_list = {&db_list, &db_list};
+/*
+ * List of open databases
+ */
+static dlist *db_list = NULL;
static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
-int QueryDB(char *file, int line, B_DB *db, char *select_cmd);
-
-
/*
- * Initialize database data structure. In principal this should
- * never have errors, or it is really fatal.
+ * When using mult_db_connections = true,
+ * sqlite can be BUSY. We just need sleep a little in this case.
*/
-B_DB *
-db_init_database(char *db_name, char *db_user, char *db_password)
+static int sqlite_busy_handler(void *arg, int calls)
{
- B_DB *mdb;
-
- P(mutex); /* lock DB queue */
- /* Look to see if DB already open */
- for (mdb=NULL; (mdb=(B_DB *)qnext(&db_list, &mdb->bq)); ) {
- if (strcmp(mdb->db_name, db_name) == 0) {
- Dmsg2(100, "DB REopen %d %s\n", mdb->ref_count, db_name);
- mdb->ref_count++;
- V(mutex);
- return mdb; /* already open */
- }
+ bmicrosleep(0, 500);
+ return 1;
+}
+
+B_DB_SQLITE::B_DB_SQLITE(JCR *jcr,
+ const char *db_driver,
+ const char *db_name,
+ const char *db_user,
+ const char *db_password,
+ const char *db_address,
+ int db_port,
+ const char *db_socket,
+ bool mult_db_connections,
+ bool disable_batch_insert)
+{
+ /*
+ * Initialize the parent class members.
+ */
+ m_db_interface_type = SQL_INTERFACE_TYPE_SQLITE3;
+ m_db_type = SQL_TYPE_SQLITE3;
+ m_db_driver = bstrdup("SQLite3");
+ m_db_name = bstrdup(db_name);
+ if (disable_batch_insert) {
+ m_disabled_batch_insert = true;
+ m_have_batch_insert = false;
+ } else {
+ m_disabled_batch_insert = false;
+#if defined(USE_BATCH_FILE_INSERT)
+#if defined(HAVE_SQLITE3_THREADSAFE)
+ m_have_batch_insert = sqlite3_threadsafe();
+#else
+ m_have_batch_insert = false;
+#endif /* HAVE_SQLITE3_THREADSAFE */
+#else
+ m_have_batch_insert = false;
+#endif /* USE_BATCH_FILE_INSERT */
}
- Dmsg0(100, "db_open first time\n");
- mdb = (B_DB *) malloc(sizeof(B_DB));
- memset(mdb, 0, sizeof(B_DB));
- mdb->db_name = bstrdup(db_name);
- mdb->have_insert_id = TRUE;
- mdb->errmsg = (char *) get_pool_memory(PM_EMSG); /* get error message buffer */
- *mdb->errmsg = 0;
- mdb->cmd = (char *) get_pool_memory(PM_EMSG); /* get command buffer */
- mdb->ref_count = 1;
- qinsert(&db_list, &mdb->bq); /* put db in list */
- V(mutex);
- return mdb;
+ errmsg = get_pool_memory(PM_EMSG); /* get error message buffer */
+ *errmsg = 0;
+ cmd = get_pool_memory(PM_EMSG); /* get command buffer */
+ cached_path = get_pool_memory(PM_FNAME);
+ cached_path_id = 0;
+ m_ref_count = 1;
+ fname = get_pool_memory(PM_FNAME);
+ path = get_pool_memory(PM_FNAME);
+ esc_name = get_pool_memory(PM_FNAME);
+ esc_path = get_pool_memory(PM_FNAME);
+ esc_obj = get_pool_memory(PM_FNAME);
+ m_allow_transactions = mult_db_connections;
+
+ /*
+ * Initialize the private members.
+ */
+ m_db_handle = NULL;
+ m_result = NULL;
+ m_sqlite_errmsg = NULL;
+
+ /*
+ * Put the db in the list.
+ */
+ if (db_list == NULL) {
+ db_list = New(dlist(this, &this->m_link));
+ }
+ db_list->append(this);
+}
+
+B_DB_SQLITE::~B_DB_SQLITE()
+{
}
/*
* Now actually open the database. This can generate errors,
* which are returned in the errmsg
+ *
+ * DO NOT close the database or delete mdb here !!!!
*/
-int
-db_open_database(B_DB *mdb)
+bool B_DB_SQLITE::db_open_database(JCR *jcr)
{
- char *db_name;
+ bool retval = false;
+ char *db_path;
int len;
struct stat statbuf;
+ int ret;
+ int errstat;
+ int retry = 0;
P(mutex);
- if (mdb->connected) {
- V(mutex);
- return 1;
- }
- mdb->connected = FALSE;
- if (pthread_mutex_init(&mdb->mutex, NULL) != 0) {
- Mmsg1(&mdb->errmsg, _("Unable to initialize DB mutex. ERR=%s\n"), strerror(errno));
- V(mutex);
- return 0;
+ if (m_connected) {
+ retval = true;
+ goto bail_out;
}
- /* open the database */
- len = strlen(working_directory) + strlen(mdb->db_name) + 5;
- db_name = (char *)malloc(len);
- strcpy(db_name, working_directory);
- strcat(db_name, "/");
- strcat(db_name, mdb->db_name);
- strcat(db_name, ".db");
- if (stat(db_name, &statbuf) != 0) {
- Mmsg1(&mdb->errmsg, _("Database %s does not exist, please create it.\n"),
- db_name);
- free(db_name);
- V(mutex);
- return 0;
+ if ((errstat=rwl_init(&m_lock)) != 0) {
+ berrno be;
+ Mmsg1(&errmsg, _("Unable to initialize DB lock. ERR=%s\n"),
+ be.bstrerror(errstat));
+ goto bail_out;
}
- mdb->db = sqlite_open(
- db_name, /* database name */
- 644, /* mode */
- &mdb->sqlite_errmsg); /* error message */
-
- Dmsg0(50, "sqlite_open\n");
-
- if (mdb->db == NULL) {
- Mmsg2(&mdb->errmsg, _("Unable to open Database=%s. ERR=%s\n"),
- db_name, mdb->sqlite_errmsg ? mdb->sqlite_errmsg : _("unknown"));
- free(db_name);
- V(mutex);
- return 0;
+
+ /*
+ * Open the database
+ */
+ len = strlen(working_directory) + strlen(m_db_name) + 5;
+ db_path = (char *)malloc(len);
+ strcpy(db_path, working_directory);
+ strcat(db_path, "/");
+ strcat(db_path, m_db_name);
+ strcat(db_path, ".db");
+ if (stat(db_path, &statbuf) != 0) {
+ Mmsg1(&errmsg, _("Database %s does not exist, please create it.\n"),
+ db_path);
+ free(db_path);
+ goto bail_out;
}
- free(db_name);
- if (!check_tables_version(mdb)) {
- V(mutex);
- return 0;
+
+ for (m_db_handle = NULL; !m_db_handle && retry++ < 10; ) {
+ ret = sqlite3_open(db_path, &m_db_handle);
+ if (ret != SQLITE_OK) {
+ m_sqlite_errmsg = (char *)sqlite3_errmsg(m_db_handle);
+ sqlite3_close(m_db_handle);
+ m_db_handle = NULL;
+ } else {
+ m_sqlite_errmsg = NULL;
+ }
+
+ Dmsg0(300, "sqlite_open\n");
+ if (!m_db_handle) {
+ bmicrosleep(1, 0);
+ }
+ }
+ if (m_db_handle == NULL) {
+ Mmsg2(&errmsg, _("Unable to open Database=%s. ERR=%s\n"),
+ db_path, m_sqlite_errmsg ? m_sqlite_errmsg : _("unknown"));
+ free(db_path);
+ goto bail_out;
+ }
+ m_connected = true;
+ free(db_path);
+
+ /*
+ * Set busy handler to wait when we use mult_db_connections = true
+ */
+ sqlite3_busy_handler(m_db_handle, sqlite_busy_handler, NULL);
+
+#if defined(SQLITE3_INIT_QUERY)
+ sql_query(SQLITE3_INIT_QUERY);
+#endif
+
+ if (!check_tables_version(jcr, this)) {
+ goto bail_out;
}
- mdb->connected = TRUE;
+ retval = true;
+
+bail_out:
V(mutex);
- return 1;
+ return retval;
}
-void
-db_close_database(B_DB *mdb)
+void B_DB_SQLITE::db_close_database(JCR *jcr)
{
+ db_end_transaction(jcr);
P(mutex);
- mdb->ref_count--;
- if (mdb->ref_count == 0) {
- qdchain(&mdb->bq);
- if (mdb->connected && mdb->db) {
- sqlite_close(mdb->db);
+ m_ref_count--;
+ if (m_ref_count == 0) {
+ sql_free_result();
+ db_list->remove(this);
+ if (m_connected && m_db_handle) {
+ sqlite3_close(m_db_handle);
}
- pthread_mutex_destroy(&mdb->mutex);
- free_pool_memory(mdb->errmsg);
- free_pool_memory(mdb->cmd);
- if (mdb->db_name) {
- free(mdb->db_name);
+ rwl_destroy(&m_lock);
+ free_pool_memory(errmsg);
+ free_pool_memory(cmd);
+ free_pool_memory(cached_path);
+ free_pool_memory(fname);
+ free_pool_memory(path);
+ free_pool_memory(esc_name);
+ free_pool_memory(esc_path);
+ free_pool_memory(esc_obj);
+ if (m_db_driver) {
+ free(m_db_driver);
+ }
+ if (m_db_name) {
+ free(m_db_name);
+ }
+ delete this;
+ if (db_list->size() == 0) {
+ delete db_list;
+ db_list = NULL;
}
- free(mdb);
}
V(mutex);
}
-/*
- * Return the next unique index (auto-increment) for
- * the given table. Return NULL on error.
- */
-char *db_next_index(B_DB *mdb, char *table)
+void B_DB_SQLITE::db_thread_cleanup(void)
{
- SQL_ROW row;
- static char id[20];
-
- QUERY_DB(mdb, "BEGIN TRANSACTION");
- sql_free_result(mdb);
-
- Mmsg(&mdb->cmd,
-"SELECT id FROM NextId WHERE TableName=\"%s\"", table);
- if (!QUERY_DB(mdb, mdb->cmd)) {
- Mmsg(&mdb->errmsg, _("next_index query error: ERR=%s\n"), sql_strerror(mdb));
- QUERY_DB(mdb, "ROLLBACK");
- return NULL;
- }
- if ((row = sql_fetch_row(mdb)) == NULL) {
- Mmsg(&mdb->errmsg, _("Error fetching index: ERR=%s\n"), sql_strerror(mdb));
- QUERY_DB(mdb, "ROLLBACK");
- return NULL;
- }
- strncpy(id, row[0], sizeof(id));
- id[sizeof(id)-1] = 0;
- sql_free_result(mdb);
-
- Mmsg(&mdb->cmd,
-"UPDATE NextId SET id=id+1 WHERE TableName=\"%s\"", table);
- if (!QUERY_DB(mdb, mdb->cmd)) {
- Mmsg(&mdb->errmsg, _("next_index update error: ERR=%s\n"), sql_strerror(mdb));
- QUERY_DB(mdb, "ROLLBACK");
- return NULL;
- }
- sql_free_result(mdb);
-
- QUERY_DB(mdb, "COMMIT");
- sql_free_result(mdb);
- return id;
-}
-
-
+ sqlite3_thread_cleanup();
+}
-void
-db_escape_string(char *snew, char *old, int len)
+/*
+ * Escape strings so that SQLite is happy
+ *
+ * NOTE! len is the length of the old string. Your new
+ * string must be long enough (max 2*old+1) to hold
+ * the escaped output.
+ */
+void B_DB_SQLITE::db_escape_string(JCR *jcr, char *snew, char *old, int len)
{
char *n, *o;
while (len--) {
switch (*o) {
case '\'':
- *n++ = '\\';
*n++ = '\'';
- o++;
- break;
- case '"':
- *n++ = '\\';
- *n++ = '"';
- o++;
- break;
+ *n++ = '\'';
+ o++;
+ break;
case 0:
*n++ = '\\';
- *n++ = 0;
- o++;
- break;
+ *n++ = 0;
+ o++;
+ break;
default:
- *n++ = *o++;
- break;
+ *n++ = *o++;
+ break;
}
}
*n = 0;
}
+/*
+ * Escape binary object so that SQLite is happy
+ * Memory is stored in B_DB struct, no need to free it
+ *
+ * TODO: this should be implemented (escape \0)
+ */
+char *B_DB_SQLITE::db_escape_object(JCR *jcr, char *old, int len)
+{
+ int l;
+ int max = len*2; /* TODO: too big, should be *4/3 */
+
+ esc_obj = check_pool_memory_size(esc_obj, max);
+ l = bin_to_base64(esc_obj, max, old, len, true);
+ esc_obj[l] = 0;
+ ASSERT(l < max); /* TODO: add check for l */
+
+ return esc_obj;
+}
+
+/*
+ * Unescape binary object so that SQLIte is happy
+ *
+ * TODO: need to be implemented (escape \0)
+ */
+
+void B_DB_SQLITE::db_unescape_object(JCR *jcr, char *from, int32_t expected_len,
+ POOLMEM **dest, int32_t *dest_len)
+{
+ if (!from) {
+ *dest[0] = 0;
+ *dest_len = 0;
+ return;
+ }
+ *dest = check_pool_memory_size(*dest, expected_len+1);
+ base64_to_bin(*dest, expected_len+1, from, strlen(from));
+ *dest_len = expected_len;
+ (*dest)[expected_len]=0;
+}
+
+/*
+ * Start a transaction. This groups inserts and makes things
+ * much more efficient. Usually started when inserting
+ * file attributes.
+ */
+void B_DB_SQLITE::db_start_transaction(JCR *jcr)
+{
+ if (!jcr->attr) {
+ jcr->attr = get_pool_memory(PM_FNAME);
+ }
+ if (!jcr->ar) {
+ jcr->ar = (ATTR_DBR *)malloc(sizeof(ATTR_DBR));
+ }
+
+ if (!m_allow_transactions) {
+ return;
+ }
+
+ db_lock(this);
+ /*
+ * Allow only 10,000 changes per transaction
+ */
+ if (m_transaction && changes > 10000) {
+ db_end_transaction(jcr);
+ }
+ if (!m_transaction) {
+ sql_query("BEGIN"); /* begin transaction */
+ Dmsg0(400, "Start SQLite transaction\n");
+ m_transaction = true;
+ }
+ db_unlock(this);
+}
+
+void B_DB_SQLITE::db_end_transaction(JCR *jcr)
+{
+ if (jcr && jcr->cached_attribute) {
+ Dmsg0(400, "Flush last cached attribute.\n");
+ if (!db_create_attributes_record(jcr, this, jcr->ar)) {
+ Jmsg1(jcr, M_FATAL, 0, _("Attribute create error. %s"), db_strerror(jcr->db));
+ }
+ jcr->cached_attribute = false;
+ }
+
+ if (!m_allow_transactions) {
+ return;
+ }
+
+ db_lock(this);
+ if (m_transaction) {
+ sql_query("COMMIT"); /* end transaction */
+ m_transaction = false;
+ Dmsg1(400, "End SQLite transaction changes=%d\n", changes);
+ }
+ changes = 0;
+ db_unlock(this);
+}
+
struct rh_data {
+ B_DB_SQLITE *mdb;
DB_RESULT_HANDLER *result_handler;
void *ctx;
+ bool initialized;
};
-/*
- * Convert SQLite's callback into Bacula DB callback
+/*
+ * Convert SQLite's callback into Bacula DB callback
*/
-static int sqlite_result(void *arh_data, int num_fields, char **rows, char **col_names)
+static int sqlite_result_handler(void *arh_data, int num_fields, char **rows, char **col_names)
{
- struct rh_data *rh_data = (struct rh_data *)arh_data;
-
+ struct rh_data *rh_data = (struct rh_data *)arh_data;
+
+ /* The db_sql_query doesn't have access to m_results, so if we wan't to get
+ * fields information, we need to use col_names
+ */
+ if (!rh_data->initialized) {
+ rh_data->mdb->set_column_names(col_names, num_fields);
+ rh_data->initialized = true;
+ }
if (rh_data->result_handler) {
(*(rh_data->result_handler))(rh_data->ctx, num_fields, rows);
}
+
return 0;
}
/*
* Submit a general SQL command (cmd), and for each row returned,
- * the sqlite_handler is called with the ctx.
+ * the result_handler is called with the ctx.
*/
-int db_sql_query(B_DB *mdb, char *query, DB_RESULT_HANDLER *result_handler, void *ctx)
+bool B_DB_SQLITE::db_sql_query(const char *query, DB_RESULT_HANDLER *result_handler, void *ctx)
{
- struct rh_data rh_data;
+ bool retval = false;
int stat;
+ struct rh_data rh_data;
- P(mdb->mutex);
- if (mdb->sqlite_errmsg) {
- actuallyfree(mdb->sqlite_errmsg);
- mdb->sqlite_errmsg = NULL;
+ Dmsg1(500, "db_sql_query starts with '%s'\n", query);
+
+ db_lock(this);
+ if (m_sqlite_errmsg) {
+ sqlite3_free(m_sqlite_errmsg);
+ m_sqlite_errmsg = NULL;
}
- rh_data.result_handler = result_handler;
+ sql_free_result();
+
rh_data.ctx = ctx;
- stat = sqlite_exec(mdb->db, query, sqlite_result, (void *)&rh_data, &mdb->sqlite_errmsg);
- if (stat != 0) {
- Mmsg(&mdb->errmsg, _("Query failed: %s: ERR=%s\n"), query, sql_strerror(mdb));
- V(mdb->mutex);
- return 0;
+ rh_data.mdb = this;
+ rh_data.initialized = false;
+ rh_data.result_handler = result_handler;
+
+ stat = sqlite3_exec(m_db_handle, query, sqlite_result_handler,
+ (void *)&rh_data, &m_sqlite_errmsg);
+
+ if (stat != SQLITE_OK) {
+ Mmsg(errmsg, _("Query failed: %s: ERR=%s\n"), query, sql_strerror());
+ Dmsg0(500, "db_sql_query finished\n");
+ goto bail_out;
}
- V(mdb->mutex);
- return 1;
+ Dmsg0(500, "db_sql_query finished\n");
+ sql_free_result();
+ retval = true;
+
+bail_out:
+ db_unlock(this);
+ return retval;
}
/*
* Submit a sqlite query and retrieve all the data
*/
-int my_sqlite_query(B_DB *mdb, char *cmd)
+bool B_DB_SQLITE::sql_query(const char *query, int flags)
{
int stat;
+ bool retval = false;
+
+ Dmsg1(500, "sql_query starts with '%s'\n", query);
+
+ sql_free_result();
+ if (m_sqlite_errmsg) {
+ sqlite3_free(m_sqlite_errmsg);
+ m_sqlite_errmsg = NULL;
+ }
- if (mdb->sqlite_errmsg) {
- actuallyfree(mdb->sqlite_errmsg);
- mdb->sqlite_errmsg = NULL;
+ stat = sqlite3_get_table(m_db_handle, (char *)query, &m_result,
+ &m_num_rows, &m_num_fields, &m_sqlite_errmsg);
+
+ m_row_number = 0; /* no row fetched */
+ if (stat != 0) { /* something went wrong */
+ m_num_rows = m_num_fields = 0;
+ Dmsg0(500, "sql_query finished\n");
+ } else {
+ Dmsg0(500, "sql_query finished\n");
+ retval = true;
}
- stat = sqlite_get_table(mdb->db, cmd, &mdb->result, &mdb->nrow, &mdb->ncolumn,
- &mdb->sqlite_errmsg);
- mdb->row = 0; /* row fetched */
- return stat;
+ return retval;
}
-/* Fetch one row at a time */
-SQL_ROW my_sqlite_fetch_row(B_DB *mdb)
+void B_DB_SQLITE::sql_free_result(void)
{
- if (mdb->row >= mdb->nrow) {
+ db_lock(this);
+ if (m_fields) {
+ free(m_fields);
+ m_fields = NULL;
+ }
+ if (m_result) {
+ sqlite3_free_table(m_result);
+ m_result = NULL;
+ }
+ m_col_names = NULL;
+ m_num_rows = m_num_fields = 0;
+ db_unlock(this);
+}
+
+/*
+ * Fetch one row at a time
+ */
+SQL_ROW B_DB_SQLITE::sql_fetch_row(void)
+{
+ if (!m_result || (m_row_number >= m_num_rows)) {
return NULL;
}
- mdb->row++;
- return &mdb->result[mdb->ncolumn * mdb->row];
+ m_row_number++;
+ return &m_result[m_num_fields * m_row_number];
}
-void my_sqlite_free_table(B_DB *mdb)
+const char *B_DB_SQLITE::sql_strerror(void)
{
- unsigned int i;
+ return m_sqlite_errmsg ? m_sqlite_errmsg : "unknown";
+}
- if (mdb->fields_defined) {
- for (i=0; i < sql_num_fields(mdb); i++) {
- free(mdb->fields[i]);
- }
- free(mdb->fields);
- mdb->fields_defined = FALSE;
+void B_DB_SQLITE::sql_data_seek(int row)
+{
+ /*
+ * Set the row number to be returned on the next call to sql_fetch_row
+ */
+ m_row_number = row;
+}
+
+int B_DB_SQLITE::sql_affected_rows(void)
+{
+ return sqlite3_changes(m_db_handle);
+}
+
+uint64_t B_DB_SQLITE::sql_insert_autokey_record(const char *query, const char *table_name)
+{
+ /*
+ * First execute the insert query and then retrieve the currval.
+ */
+ if (!sql_query(query)) {
+ return 0;
+ }
+
+ m_num_rows = sql_affected_rows();
+ if (m_num_rows != 1) {
+ return 0;
}
- sqlite_free_table(mdb->result);
- mdb->nrow = mdb->ncolumn = 0;
+
+ changes++;
+
+ return sqlite3_last_insert_rowid(m_db_handle);
}
-void my_sqlite_field_seek(B_DB *mdb, int field)
+SQL_FIELD *B_DB_SQLITE::sql_fetch_field(void)
{
- unsigned int i, j;
- if (mdb->result == NULL) {
- return;
+ int i, j, len;
+
+ /* We are in the middle of a db_sql_query and we want to get fields info */
+ if (m_col_names != NULL) {
+ if (m_num_fields > m_field_number) {
+ m_sql_field.name = m_col_names[m_field_number];
+ /* We don't have the maximum field length, so we can use 80 as
+ * estimation.
+ */
+ len = MAX(cstrlen(m_sql_field.name), 80/m_num_fields);
+ m_sql_field.max_length = len;
+
+ m_field_number++;
+ m_sql_field.type = 0; /* not numeric */
+ m_sql_field.flags = 1; /* not null */
+ return &m_sql_field;
+ } else { /* too much fetch_field() */
+ return NULL;
+ }
}
- /* On first call, set up the fields */
- if (!mdb->fields_defined && sql_num_fields(mdb) > 0) {
- mdb->fields = (SQL_FIELD **)malloc(sizeof(SQL_FIELD) * mdb->ncolumn);
- for (i=0; i < sql_num_fields(mdb); i++) {
- mdb->fields[i] = (SQL_FIELD *)malloc(sizeof(SQL_FIELD));
- mdb->fields[i]->name = mdb->result[i];
- mdb->fields[i]->length = strlen(mdb->fields[i]->name);
- mdb->fields[i]->max_length = mdb->fields[i]->length;
- for (j=1; j <= (unsigned)mdb->nrow; j++) {
- uint32_t len;
- if (mdb->result[i + mdb->ncolumn *j]) {
- len = (uint32_t)strlen(mdb->result[i + mdb->ncolumn * j]);
- } else {
- len = 0;
- }
- if (len > mdb->fields[i]->max_length) {
- mdb->fields[i]->max_length = len;
- }
- }
- mdb->fields[i]->type = 0;
- mdb->fields[i]->flags = 1; /* not null */
+
+ /* We are after a sql_query() that stores the result in m_results */
+ if (!m_fields || m_fields_size < m_num_fields) {
+ if (m_fields) {
+ free(m_fields);
+ m_fields = NULL;
+ }
+ Dmsg1(500, "allocating space for %d fields\n", m_num_fields);
+ m_fields = (SQL_FIELD *)malloc(sizeof(SQL_FIELD) * m_num_fields);
+ m_fields_size = m_num_fields;
+
+ for (i = 0; i < m_num_fields; i++) {
+ Dmsg1(500, "filling field %d\n", i);
+ m_fields[i].name = m_result[i];
+ m_fields[i].max_length = cstrlen(m_fields[i].name);
+ for (j = 1; j <= m_num_rows; j++) {
+ if (m_result[i + m_num_fields * j]) {
+ len = (uint32_t)cstrlen(m_result[i + m_num_fields * j]);
+ } else {
+ len = 0;
+ }
+ if (len > m_fields[i].max_length) {
+ m_fields[i].max_length = len;
+ }
+ }
+ m_fields[i].type = 0;
+ m_fields[i].flags = 1; /* not null */
+
+ Dmsg4(500, "sql_fetch_field finds field '%s' has length='%d' type='%d' and IsNull=%d\n",
+ m_fields[i].name, m_fields[i].max_length, m_fields[i].type, m_fields[i].flags);
}
- mdb->fields_defined = TRUE;
}
- if (field > (int)sql_num_fields(mdb)) {
- field = (int)sql_num_fields(mdb);
- }
- mdb->field = field;
+ /*
+ * Increment field number for the next time around
+ */
+ return &m_fields[m_field_number++];
}
-SQL_FIELD *my_sqlite_fetch_field(B_DB *mdb)
+bool B_DB_SQLITE::sql_field_is_not_null(int field_type)
{
- return mdb->fields[mdb->field++];
+ switch (field_type) {
+ case 1:
+ return true;
+ default:
+ return false;
+ }
}
-static void
-list_dashes(B_DB *mdb, DB_LIST_HANDLER *send, void *ctx)
+bool B_DB_SQLITE::sql_field_is_numeric(int field_type)
{
- SQL_FIELD *field;
- unsigned int i, j;
-
- sql_field_seek(mdb, 0);
- send(ctx, "+");
- for (i = 0; i < sql_num_fields(mdb); i++) {
- field = sql_fetch_field(mdb);
- for (j = 0; j < field->max_length + 2; j++)
- send(ctx, "-");
- send(ctx, "+");
- }
- send(ctx, "\n");
+ switch (field_type) {
+ case 1:
+ return true;
+ default:
+ return false;
+ }
}
-void
-list_result(B_DB *mdb, DB_LIST_HANDLER *send, void *ctx)
+/*
+ * Returns true if OK
+ * false if failed
+ */
+bool B_DB_SQLITE::sql_batch_start(JCR *jcr)
{
- SQL_FIELD *field;
- SQL_ROW row;
- unsigned int i, col_len;
- char buf[2000], ewc[30];
+ bool retval;
+
+ db_lock(this);
+ retval = sql_query("CREATE TEMPORARY TABLE batch ("
+ "FileIndex integer,"
+ "JobId integer,"
+ "Path blob,"
+ "Name blob,"
+ "LStat tinyblob,"
+ "MD5 tinyblob,"
+ "DeltaSeq integer)");
+ db_unlock(this);
+
+ return retval;
+}
- if (mdb->result == NULL || mdb->nrow == 0) {
- return;
+/* set error to something to abort operation */
+/*
+ * Returns true if OK
+ * false if failed
+ */
+bool B_DB_SQLITE::sql_batch_end(JCR *jcr, const char *error)
+{
+ m_status = 0;
+
+ return true;
+}
+
+/*
+ * Returns true if OK
+ * false if failed
+ */
+bool B_DB_SQLITE::sql_batch_insert(JCR *jcr, ATTR_DBR *ar)
+{
+ size_t len;
+ const char *digest;
+ char ed1[50];
+
+ esc_name = check_pool_memory_size(esc_name, fnl*2+1);
+ db_escape_string(jcr, esc_name, fname, fnl);
+
+ esc_path = check_pool_memory_size(esc_path, pnl*2+1);
+ db_escape_string(jcr, esc_path, path, pnl);
+
+ if (ar->Digest == NULL || ar->Digest[0] == 0) {
+ digest = "0";
+ } else {
+ digest = ar->Digest;
}
- /* determine column display widths */
- sql_field_seek(mdb, 0);
- for (i = 0; i < sql_num_fields(mdb); i++) {
- field = sql_fetch_field(mdb);
- if (IS_NUM(field->type) && field->max_length > 0) { /* fixup for commas */
- field->max_length += (field->max_length - 1) / 3;
- }
- col_len = strlen(field->name);
- if (col_len < field->max_length)
- col_len = field->max_length;
- if (col_len < 4 && !IS_NOT_NULL(field->flags))
- col_len = 4; /* 4 = length of the word "NULL" */
- field->max_length = col_len; /* reset column info */
- }
-
- list_dashes(mdb, send, ctx);
- send(ctx, "|");
- sql_field_seek(mdb, 0);
- for (i = 0; i < sql_num_fields(mdb); i++) {
- field = sql_fetch_field(mdb);
- sprintf(buf, " %-*s |", field->max_length, field->name);
- send(ctx, buf);
- }
- send(ctx, "\n");
- list_dashes(mdb, send, ctx);
-
- while ((row = sql_fetch_row(mdb)) != NULL) {
- sql_field_seek(mdb, 0);
- send(ctx, "|");
- for (i = 0; i < sql_num_fields(mdb); i++) {
- field = sql_fetch_field(mdb);
- if (row[i] == NULL) {
- sprintf(buf, " %-*s |", field->max_length, "NULL");
- } else if (IS_NUM(field->type)) {
- sprintf(buf, " %*s |", field->max_length,
- add_commas(row[i], ewc));
- } else {
- sprintf(buf, " %-*s |", field->max_length, row[i]);
- }
- send(ctx, buf);
+
+ len = Mmsg(cmd, "INSERT INTO batch VALUES "
+ "(%u,%s,'%s','%s','%s','%s',%u)",
+ ar->FileIndex, edit_int64(ar->JobId,ed1), esc_path,
+ esc_name, ar->attr, digest, ar->DeltaSeq);
+
+ return sql_query(cmd);
+}
+
+/*
+ * Initialize database data structure. In principal this should
+ * never have errors, or it is really fatal.
+ */
+B_DB *db_init_database(JCR *jcr, const char *db_driver, const char *db_name,
+ const char *db_user, const char *db_password,
+ const char *db_address, int db_port,
+ const char *db_socket, bool mult_db_connections,
+ bool disable_batch_insert)
+{
+ B_DB *mdb = NULL;
+
+ P(mutex); /* lock DB queue */
+ /*
+ * Look to see if DB already open
+ */
+ if (db_list && !mult_db_connections) {
+ foreach_dlist(mdb, db_list) {
+ if (mdb->db_match_database(db_driver, db_name, db_address, db_port)) {
+ Dmsg1(300, "DB REopen %s\n", db_name);
+ mdb->increment_refcount();
+ goto bail_out;
+ }
}
- send(ctx, "\n");
}
- list_dashes(mdb, send, ctx);
-}
+ Dmsg0(300, "db_init_database first time\n");
+ mdb = New(B_DB_SQLITE(jcr, db_driver, db_name, db_user, db_password,
+ db_address, db_port, db_socket, mult_db_connections,
+ disable_batch_insert));
+bail_out:
+ V(mutex);
+ return mdb;
+}
-#endif /* HAVE_SQLITE */
+#endif /* HAVE_SQLITE3 */
projects / bacula / bacula / blobdiff