/*
Bacula® - The Network Backup Solution
- Copyright (C) 2003-2007 Free Software Foundation Europe e.V.
+ Copyright (C) 2003-2010 Free Software Foundation Europe e.V.
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 two of the GNU General Public
+ 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.
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
+ 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.
* Dan Langille, December 2003
* based upon work done by Kern Sibbald, March 2000
*
- * Version $Id$
*/
*/
/* List of open databases */
-static BQUEUE db_list = {&db_list, &db_list};
+static dlist *db_list = NULL;
static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
const char *db_address, int db_port, const char *db_socket,
int mult_db_connections)
{
- B_DB *mdb;
+ B_DB *mdb = NULL;
if (!db_user) {
Jmsg(jcr, M_FATAL, 0, _("A user name for PostgreSQL must be supplied.\n"));
return NULL;
}
P(mutex); /* lock DB queue */
+ if (db_list == NULL) {
+ db_list = New(dlist(mdb, &mdb->link));
+ }
if (!mult_db_connections) {
/* Look to see if DB already open */
- for (mdb=NULL; (mdb=(B_DB *)qnext(&db_list, &mdb->bq)); ) {
+ foreach_dlist(mdb, db_list) {
if (bstrcmp(mdb->db_name, db_name) &&
bstrcmp(mdb->db_address, db_address) &&
mdb->db_port == db_port) {
mdb->db_socket = bstrdup(db_socket);
}
mdb->db_port = db_port;
- mdb->have_insert_id = TRUE;
mdb->errmsg = get_pool_memory(PM_EMSG); /* get error message buffer */
*mdb->errmsg = 0;
mdb->cmd = get_pool_memory(PM_EMSG); /* get command buffer */
mdb->fname = get_pool_memory(PM_FNAME);
mdb->path = get_pool_memory(PM_FNAME);
mdb->esc_name = get_pool_memory(PM_FNAME);
- mdb->esc_path = get_pool_memory(PM_FNAME);
+ mdb->esc_path = get_pool_memory(PM_FNAME);
mdb->allow_transactions = mult_db_connections;
- qinsert(&db_list, &mdb->bq); /* put db in list */
+ db_list->append(mdb); /* put db in list */
V(mutex);
return mdb;
}
Jmsg(jcr, M_ERROR, 0, "Can't check database encoding %s", mdb->errmsg);
} else {
ret = bstrcmp(row[0], "SQL_ASCII");
- if (!ret) {
+
+ if (ret) {
+ /* if we are in SQL_ASCII, we can force the client_encoding to SQL_ASCII too */
+ db_sql_query(mdb, "SET client_encoding TO 'SQL_ASCII'", NULL, NULL);
+
+ } else { /* something is wrong with database encoding */
Mmsg(mdb->errmsg,
_("Encoding error for database \"%s\". Wanted SQL_ASCII, got %s\n"),
mdb->db_name, row[0]);
Jmsg(jcr, M_WARNING, 0, "%s", mdb->errmsg);
+ Dmsg1(50, "%s", mdb->errmsg);
}
}
return ret;
int errstat;
char buf[10], *port;
-#ifdef xxx /* require libpq >= 8.2 */
- if (!PQisthreadsafe()) {
- Jmsg(jcr, M_ABORT, 0, _("PostgreSQL configuration problem. "
- "PostgreSQL library is not thread safe. Cannot continue.\n"));
- }
-#endif
P(mutex);
if (mdb->connected) {
V(mutex);
mdb->db_password==NULL?"(NULL)":mdb->db_password);
if (PQstatus(mdb->db) != CONNECTION_OK) {
- Mmsg2(&mdb->errmsg, _("Unable to connect to PostgreSQL server.\n"
- "Database=%s User=%s\n"
- "It is probably not running or your password is incorrect.\n"),
- mdb->db_name, mdb->db_user);
+ Mmsg2(&mdb->errmsg, _("Unable to connect to PostgreSQL server. Database=%s User=%s\n"
+ "Possible causes: SQL server not running; password incorrect; max_connections exceeded.\n"),
+ mdb->db_name, mdb->db_user);
V(mutex);
return 0;
}
sql_free_result(mdb);
mdb->ref_count--;
if (mdb->ref_count == 0) {
- qdchain(&mdb->bq);
+ db_list->remove(mdb);
if (mdb->connected && mdb->db) {
sql_close(mdb);
}
if (mdb->db_socket) {
free(mdb->db_socket);
}
+ if (mdb->esc_obj) {
+ PQfreemem(mdb->esc_obj);
+ }
free(mdb);
+ if (db_list->size() == 0) {
+ delete db_list;
+ db_list = NULL;
+ }
}
V(mutex);
}
+void db_check_backend_thread_safe()
+{
+#ifdef HAVE_BATCH_FILE_INSERT
+# ifdef HAVE_PQISTHREADSAFE
+ if (!PQisthreadsafe()) {
+ Emsg0(M_ABORT, 0, _("Pg client library must be thread-safe "
+ "when using BatchMode.\n"));
+ }
+# endif
+#endif
+}
+
void db_thread_cleanup()
{ }
return 1;
}
+/*
+ * Escape binary so that PostgreSQL is happy
+ *
+ */
+char *
+db_escape_object(JCR *jcr, B_DB *mdb, char *old, int len)
+{
+ size_t new_len;
+ if (mdb->esc_obj) {
+ PQfreemem(mdb->esc_obj);
+ }
+
+ mdb->esc_obj = PQescapeByteaConn(mdb->db, (unsigned const char *)old,
+ len, &new_len);
+
+ if (!mdb->esc_obj) {
+ Jmsg(jcr, M_FATAL, 0, _("PQescapeByteaConn returned NULL.\n"));
+ }
+
+ return (char *)mdb->esc_obj;
+}
+
+/*
+ * Unescape binary object so that PostgreSQL is happy
+ *
+ */
+void
+db_unescape_object(JCR *jcr, B_DB *mdb,
+ char *from, int32_t expected_len,
+ POOLMEM **dest, int32_t *dest_len)
+{
+ size_t new_len;
+ unsigned char *obj;
+
+ if (!from) {
+ *dest[0] = 0;
+ *dest_len = 0;
+ return;
+ }
+
+ obj = PQunescapeBytea((unsigned const char *)from, &new_len);
+
+ if (!obj) {
+ Jmsg(jcr, M_FATAL, 0, _("PQunescapeByteaConn returned NULL.\n"));
+ }
+
+ *dest_len = new_len;
+ *dest = check_pool_memory_size(*dest, new_len+1);
+ memcpy(*dest, obj, new_len);
+ (*dest)[new_len]=0;
+
+ PQfreemem(obj);
+
+ Dmsg1(010, "obj size: %d\n", *dest_len);
+}
/*
* Escape strings so that PostgreSQL is happy
}
// if still within the result set
- if (mdb->row_number < mdb->num_rows) {
+ if (mdb->row_number >= 0 && mdb->row_number < mdb->num_rows) {
Dmsg2(500, "my_postgresql_fetch_row row number '%d' is acceptable (0..%d)\n", mdb->row_number, mdb->num_rows);
// get each value from this row
for (j = 0; j < mdb->num_fields; j++) {
mdb->num_rows = PQntuples(mdb->result);
Dmsg1(500, "we have %d rows\n", mdb->num_rows);
- mdb->status = 0; /* succeed */
+ mdb->row_number = 0; /* we can start to fetch something */
+ mdb->status = 0; /* succeed */
} else {
Dmsg1(50, "Result status failed: %s\n", query);
goto bail_out;
db_unlock(mdb);
}
-int my_postgresql_currval(B_DB *mdb, const char *table_name)
+static uint64_t my_postgresql_currval(B_DB *mdb, const char *table_name)
{
// Obtain the current value of the sequence that
// provides the serial value for primary key of the table.
char sequence[NAMEDATALEN-1];
char query [NAMEDATALEN+50];
PGresult *result;
- int id = 0;
+ uint64_t id = 0;
if (strcasecmp(table_name, "basefiles") == 0) {
bstrncpy(sequence, "basefiles_baseid", sizeof(sequence));
if (PQresultStatus(result) == PGRES_TUPLES_OK) {
Dmsg0(500, "getting value");
- id = atoi(PQgetvalue(result, 0, 0));
+ id = str_to_uint64(PQgetvalue(result, 0, 0));
Dmsg2(500, "got value '%s' which became %d\n", PQgetvalue(result, 0, 0), id);
} else {
Dmsg1(50, "Result status failed: %s\n", query);
bail_out:
PQclear(result);
-
+
return id;
}
+uint64_t my_postgresql_insert_autokey_record(B_DB *mdb, const char *query, const char *table_name)
+{
+ /*
+ * First execute the insert query and then retrieve the currval.
+ */
+ if (my_postgresql_query(mdb, query)) {
+ return 0;
+ }
+
+ mdb->num_rows = sql_affected_rows(mdb);
+ if (mdb->num_rows != 1) {
+ return 0;
+ }
+
+ mdb->changes++;
+
+ return my_postgresql_currval(mdb, table_name);
+}
+
#ifdef HAVE_BATCH_FILE_INSERT
int my_postgresql_batch_start(JCR *jcr, B_DB *mdb)
{
int res;
int count=30;
+ PGresult *result;
Dmsg0(500, "my_postgresql_batch_end started\n");
if (!mdb) { /* no files ? */
mdb->status = 0;
Mmsg1(&mdb->errmsg, _("error ending batch mode: %s"), PQerrorMessage(mdb->db));
}
-
+
+ /* Check command status and return to normal libpq state */
+ result = PQgetResult(mdb->db);
+ if (PQresultStatus(result) != PGRES_COMMAND_OK) {
+ Mmsg1(&mdb->errmsg, _("error ending batch mode: %s"), PQerrorMessage(mdb->db));
+ mdb->status = 0;
+ }
+ PQclear(result);
+
Dmsg0(500, "my_postgresql_batch_end finishing\n");
return mdb->status;
if (res <= 0) {
Dmsg0(500, "we failed\n");
mdb->status = 0;
- Mmsg1(&mdb->errmsg, _("error ending batch mode: %s"), PQerrorMessage(mdb->db));
+ Mmsg1(&mdb->errmsg, _("error copying in batch mode: %s"), PQerrorMessage(mdb->db));
}
Dmsg0(500, "my_postgresql_batch_insert finishing\n");
projects / bacula / bacula / blobdiff