/*
- * Bacula Catalog Database routines specific to PostgreSQL
- * These are PostgreSQL specific routines
- *
- * Dan Langille, December 2003
- * based upon work done by Kern Sibbald, March 2000
- *
- * Version $Id$
- */
+ Bacula® - The Network Backup Solution
-/*
- Copyright (C) 2000-2004 Kern Sibbald and John Walker
+ Copyright (C) 2003-2010 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 two of the GNU 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 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 PostgreSQL
+ * These are PostgreSQL specific routines
+ *
+ * Dan Langille, December 2003
+ * based upon work done by Kern Sibbald, March 2000
+ *
*/
/* 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 */
+#define __SQL_C /* indicate that this is sql.c */
#include "bacula.h"
#include "cats.h"
#ifdef HAVE_POSTGRESQL
#include "postgres_ext.h" /* needed for NAMEDATALEN */
+#include "pg_config_manual.h" /* get NAMEDATALEN on version 8.3 or later */
/* -----------------------------------------------------------------------
*
*/
/* 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;
+/*
+ * Retrieve database type
+ */
+const char *
+db_get_type(void)
+{
+ return "PostgreSQL";
+
+}
+
/*
* Initialize database data structure. In principal this should
* never have errors, or it is really fatal.
*/
B_DB *
-db_init_database(JCR *jcr, char *db_name, char *db_user, char *db_password,
- char *db_address, int db_port, char *db_socket)
+db_init_database(JCR *jcr, const char *db_name, const char *db_user, const char *db_password,
+ 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) {
+ if (!db_user) {
Jmsg(jcr, M_FATAL, 0, _("A user name for PostgreSQL must be supplied.\n"));
return NULL;
}
- 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 */
+ 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 */
+ foreach_dlist(mdb, db_list) {
+ if (bstrcmp(mdb->db_name, db_name) &&
+ bstrcmp(mdb->db_address, db_address) &&
+ mdb->db_port == db_port) {
+ Dmsg2(100, "DB REopen %d %s\n", mdb->ref_count, db_name);
+ mdb->ref_count++;
+ V(mutex);
+ return mdb; /* already open */
+ }
}
}
Dmsg0(100, "db_open first time\n");
- mdb = (B_DB *) malloc(sizeof(B_DB));
+ mdb = (B_DB *)malloc(sizeof(B_DB));
memset(mdb, 0, sizeof(B_DB));
mdb->db_name = bstrdup(db_name);
mdb->db_user = bstrdup(db_user);
}
mdb->db_port = db_port;
mdb->have_insert_id = TRUE;
- mdb->errmsg = get_pool_memory(PM_EMSG); /* get error message buffer */
+ 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->cmd = get_pool_memory(PM_EMSG); /* get command buffer */
mdb->cached_path = get_pool_memory(PM_FNAME);
mdb->cached_path_id = 0;
mdb->ref_count = 1;
- mdb->fname = get_pool_memory(PM_FNAME);
- mdb->path = get_pool_memory(PM_FNAME);
+ mdb->fname = get_pool_memory(PM_FNAME);
+ mdb->path = get_pool_memory(PM_FNAME);
mdb->esc_name = get_pool_memory(PM_FNAME);
- qinsert(&db_list, &mdb->bq); /* put db in list */
+ mdb->esc_path = get_pool_memory(PM_FNAME);
+ mdb->allow_transactions = mult_db_connections;
+ db_list->append(mdb); /* put db in list */
V(mutex);
return mdb;
}
+/* Check that the database correspond to the encoding we want */
+static bool check_database_encoding(JCR *jcr, B_DB *mdb)
+{
+ SQL_ROW row;
+ int ret=false;
+
+ if (!db_sql_query(mdb, "SELECT getdatabaseencoding()", NULL, NULL)) {
+ Jmsg(jcr, M_ERROR, 0, "%s", mdb->errmsg);
+ return false;
+ }
+
+ if ((row = sql_fetch_row(mdb)) == NULL) {
+ Mmsg1(mdb->errmsg, _("error fetching row: %s\n"), sql_strerror(mdb));
+ Jmsg(jcr, M_ERROR, 0, "Can't check database encoding %s", mdb->errmsg);
+ } else {
+ ret = bstrcmp(row[0], "SQL_ASCII");
+
+ 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;
+}
+
/*
* Now actually open the database. This can generate errors,
* which are returned in the errmsg
V(mutex);
return 1;
}
- mdb->connected = FALSE;
+ mdb->connected = false;
if ((errstat=rwl_init(&mdb->lock)) != 0) {
- Mmsg1(&mdb->errmsg, _("Unable to initialize DB lock. ERR=%s\n"),
- strerror(errstat));
+ berrno be;
+ Mmsg1(&mdb->errmsg, _("Unable to initialize DB lock. ERR=%s\n"),
+ be.bstrerror(errstat));
V(mutex);
return 0;
}
} else {
port = NULL;
}
- /* connect to the database */
- mdb->db = PQsetdbLogin(
- mdb->db_address, /* default = localhost */
- port, /* default port */
- NULL, /* pg options */
- NULL, /* tty, ignored */
- mdb->db_name, /* database name */
- mdb->db_user, /* login name */
- mdb->db_password); /* password */
-
- /* If no connect, try once more in case it is a timing problem */
- if (PQstatus(mdb->db) != CONNECTION_OK) {
- mdb->db = PQsetdbLogin(
- mdb->db_address, /* default = localhost */
- port, /* default port */
- NULL, /* pg options */
- NULL, /* tty, ignored */
- mdb->db_name, /* database name */
- mdb->db_user, /* login name */
- mdb->db_password); /* password */
- }
-
+
+ /* If connection fails, try at 5 sec intervals for 30 seconds. */
+ for (int retry=0; retry < 6; retry++) {
+ /* connect to the database */
+ mdb->db = PQsetdbLogin(
+ mdb->db_address, /* default = localhost */
+ port, /* default port */
+ NULL, /* pg options */
+ NULL, /* tty, ignored */
+ mdb->db_name, /* database name */
+ mdb->db_user, /* login name */
+ mdb->db_password); /* password */
+
+ /* If no connect, try once more in case it is a timing problem */
+ if (PQstatus(mdb->db) == CONNECTION_OK) {
+ break;
+ }
+ bmicrosleep(5, 0);
+ }
+
Dmsg0(50, "pg_real_connect done\n");
- Dmsg3(50, "db_user=%s db_name=%s db_password=%s\n", mdb->db_user, mdb->db_name,
+ Dmsg3(50, "db_user=%s db_name=%s db_password=%s\n", mdb->db_user, mdb->db_name,
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;
}
+ mdb->connected = true;
+
if (!check_tables_version(jcr, mdb)) {
V(mutex);
return 0;
}
- mdb->connected = TRUE;
+ sql_query(mdb, "SET datestyle TO 'ISO, YMD'");
+
+ /* tell PostgreSQL we are using standard conforming strings
+ and avoid warnings such as:
+ WARNING: nonstandard use of \\ in a string literal
+ */
+ sql_query(mdb, "set standard_conforming_strings=on");
+
+ /* check that encoding is SQL_ASCII */
+ check_database_encoding(jcr, mdb);
+
V(mutex);
return 1;
}
if (!mdb) {
return;
}
+ db_end_transaction(jcr, mdb);
P(mutex);
+ 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);
+ sql_close(mdb);
}
- rwl_destroy(&mdb->lock);
+ rwl_destroy(&mdb->lock);
free_pool_memory(mdb->errmsg);
free_pool_memory(mdb->cmd);
free_pool_memory(mdb->cached_path);
free_pool_memory(mdb->fname);
free_pool_memory(mdb->path);
free_pool_memory(mdb->esc_name);
+ free_pool_memory(mdb->esc_path);
if (mdb->db_name) {
- free(mdb->db_name);
+ free(mdb->db_name);
}
if (mdb->db_user) {
- free(mdb->db_user);
+ free(mdb->db_user);
}
if (mdb->db_password) {
- free(mdb->db_password);
+ free(mdb->db_password);
}
if (mdb->db_address) {
- free(mdb->db_address);
+ free(mdb->db_address);
}
if (mdb->db_socket) {
- free(mdb->db_socket);
+ free(mdb->db_socket);
}
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 the next unique index (auto-increment) for
* the given table. Return NULL on error.
- *
+ *
* For PostgreSQL, NULL causes the auto-increment value
* to be updated.
*/
{
strcpy(index, "NULL");
return 1;
-}
+}
/*
* Escape strings so that PostgreSQL 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.
+ * string must be long enough (max 2*old+1) to hold
+ * the escaped output.
*/
void
-db_escape_string(char *snew, char *old, int len)
+db_escape_string(JCR *jcr, B_DB *mdb, char *snew, char *old, int len)
{
- PQescapeString(snew, old, len);
+ int error;
+
+ PQescapeStringConn(mdb->db, snew, old, len, &error);
+ if (error) {
+ Jmsg(jcr, M_FATAL, 0, _("PQescapeStringConn returned non-zero.\n"));
+ /* error on encoding, probably invalid multibyte encoding in the source string
+ see PQescapeStringConn documentation for details. */
+ Dmsg0(500, "PQescapeStringConn failed\n");
+ }
}
/*
* Submit a general SQL command (cmd), and for each row returned,
* the sqlite_handler is called with the ctx.
*/
-int db_sql_query(B_DB *mdb, char *query, DB_RESULT_HANDLER *result_handler, void *ctx)
+bool db_sql_query(B_DB *mdb, const char *query, DB_RESULT_HANDLER *result_handler, void *ctx)
{
SQL_ROW row;
- Dmsg0(50, "db_sql_query started\n");
-
+ Dmsg0(500, "db_sql_query started\n");
+
db_lock(mdb);
if (sql_query(mdb, query) != 0) {
- Mmsg(&mdb->errmsg, _("Query failed: %s: ERR=%s\n"), query, sql_strerror(mdb));
+ Mmsg(mdb->errmsg, _("Query failed: %s: ERR=%s\n"), query, sql_strerror(mdb));
db_unlock(mdb);
- Dmsg0(50, "db_sql_query failed\n");
- return 0;
+ Dmsg0(500, "db_sql_query failed\n");
+ return false;
}
- Dmsg0(50, "db_sql_query succeeded. checking handler\n");
+ Dmsg0(500, "db_sql_query succeeded. checking handler\n");
if (result_handler != NULL) {
- Dmsg0(50, "db_sql_query invoking handler\n");
+ Dmsg0(500, "db_sql_query invoking handler\n");
if ((mdb->result = sql_store_result(mdb)) != NULL) {
- int num_fields = sql_num_fields(mdb);
+ int num_fields = sql_num_fields(mdb);
- Dmsg0(50, "db_sql_query sql_store_result suceeded\n");
- while ((row = sql_fetch_row(mdb)) != NULL) {
+ Dmsg0(500, "db_sql_query sql_store_result suceeded\n");
+ while ((row = sql_fetch_row(mdb)) != NULL) {
- Dmsg0(50, "db_sql_query sql_fetch_row worked\n");
- if (result_handler(ctx, num_fields, row))
- break;
- }
+ Dmsg0(500, "db_sql_query sql_fetch_row worked\n");
+ if (result_handler(ctx, num_fields, row))
+ break;
+ }
- sql_free_result(mdb);
+ sql_free_result(mdb);
}
}
db_unlock(mdb);
- Dmsg0(50, "db_sql_query finished\n");
+ Dmsg0(500, "db_sql_query finished\n");
- return 1;
+ return true;
}
-POSTGRESQL_ROW my_postgresql_fetch_row(B_DB *mdb)
+POSTGRESQL_ROW my_postgresql_fetch_row(B_DB *mdb)
{
- int j;
+ int j;
POSTGRESQL_ROW row = NULL; // by default, return NULL
- Dmsg0(50, "my_postgresql_fetch_row start\n");
+ Dmsg0(500, "my_postgresql_fetch_row start\n");
- if (mdb->row_number == -1 || mdb->row == NULL) {
- Dmsg1(50, "we have need space of %d bytes\n", sizeof(char *) * mdb->num_fields);
+ if (!mdb->row || mdb->row_size < mdb->num_fields) {
+ int num_fields = mdb->num_fields;
+ Dmsg1(500, "we have need space of %d bytes\n", sizeof(char *) * mdb->num_fields);
- if (mdb->row != NULL) {
- Dmsg0(50, "my_postgresql_fetch_row freeing space\n");
- free(mdb->row);
- mdb->row = NULL;
+ if (mdb->row) {
+ Dmsg0(500, "my_postgresql_fetch_row freeing space\n");
+ free(mdb->row);
}
-
- mdb->row = (POSTGRESQL_ROW) malloc(sizeof(char *) * mdb->num_fields);
+ num_fields += 20; /* add a bit extra */
+ mdb->row = (POSTGRESQL_ROW)malloc(sizeof(char *) * num_fields);
+ mdb->row_size = num_fields;
// now reset the row_number now that we have the space allocated
mdb->row_number = 0;
}
// if still within the result set
- if (mdb->row_number < mdb->num_rows) {
- Dmsg2(50, "my_postgresql_fetch_row row number '%d' is acceptable (0..%d)\n", 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->row[j] = PQgetvalue(mdb->result, mdb->row_number, j);
- Dmsg2(50, "my_postgresql_fetch_row field '%d' has value '%s'\n", j, mdb->row[j]);
+ mdb->row[j] = PQgetvalue(mdb->result, mdb->row_number, j);
+ Dmsg2(500, "my_postgresql_fetch_row field '%d' has value '%s'\n", j, mdb->row[j]);
}
// increment the row number for the next call
mdb->row_number++;
row = mdb->row;
} else {
- Dmsg2(50, "my_postgresql_fetch_row row number '%d' is NOT acceptable (0..%d)\n", mdb->row_number, mdb->num_rows);
+ Dmsg2(500, "my_postgresql_fetch_row row number '%d' is NOT acceptable (0..%d)\n", mdb->row_number, mdb->num_rows);
}
- Dmsg1(50, "my_postgresql_fetch_row finishes returning %x\n", row);
+ Dmsg1(500, "my_postgresql_fetch_row finishes returning %p\n", row);
return row;
}
//
// for a given column, find the max length
//
- int max_length;
+ int max_length;
int i;
- int this_length;
+ int this_length;
max_length = 0;
for (i = 0; i < mdb->num_rows; i++) {
if (PQgetisnull(mdb->result, i, field_num)) {
this_length = 4; // "NULL"
} else {
- this_length = strlen(PQgetvalue(mdb->result, i, field_num));
+ this_length = cstrlen(PQgetvalue(mdb->result, i, field_num));
}
-
+
if (max_length < this_length) {
- max_length = this_length;
+ max_length = this_length;
}
}
return max_length;
}
-POSTGRESQL_FIELD * my_postgresql_fetch_field(B_DB *mdb)
+POSTGRESQL_FIELD * my_postgresql_fetch_field(B_DB *mdb)
{
- int i;
+ int i;
+
+ Dmsg0(500, "my_postgresql_fetch_field starts\n");
- Dmsg0(50, "my_postgresql_fetch_field starts\n");
- if (mdb->fields == NULL) {
- Dmsg1(50, "allocating space for %d fields\n", mdb->num_fields);
+ if (!mdb->fields || mdb->fields_size < mdb->num_fields) {
+ if (mdb->fields) {
+ free(mdb->fields);
+ }
+ Dmsg1(500, "allocating space for %d fields\n", mdb->num_fields);
mdb->fields = (POSTGRESQL_FIELD *)malloc(sizeof(POSTGRESQL_FIELD) * mdb->num_fields);
+ mdb->fields_size = mdb->num_fields;
for (i = 0; i < mdb->num_fields; i++) {
- Dmsg1(50, "filling field %d\n", i);
- mdb->fields[i].name = PQfname(mdb->result, i);
- mdb->fields[i].max_length = my_postgresql_max_length(mdb, i);
- mdb->fields[i].type = PQftype(mdb->result, i);
- mdb->fields[i].flags = 0;
-
- Dmsg4(50, "my_postgresql_fetch_field finds field '%s' has length='%d' type='%d' and IsNull=%d\n",
- mdb->fields[i].name, mdb->fields[i].max_length, mdb->fields[i].type,
- mdb->fields[i].flags);
+ Dmsg1(500, "filling field %d\n", i);
+ mdb->fields[i].name = PQfname(mdb->result, i);
+ mdb->fields[i].max_length = my_postgresql_max_length(mdb, i);
+ mdb->fields[i].type = PQftype(mdb->result, i);
+ mdb->fields[i].flags = 0;
+
+ Dmsg4(500, "my_postgresql_fetch_field finds field '%s' has length='%d' type='%d' and IsNull=%d\n",
+ mdb->fields[i].name, mdb->fields[i].max_length, mdb->fields[i].type,
+ mdb->fields[i].flags);
} // end for
} // end if
// increment field number for the next time around
- Dmsg0(50, "my_postgresql_fetch_field finishes\n");
+ Dmsg0(500, "my_postgresql_fetch_field finishes\n");
return &mdb->fields[mdb->field_number++];
}
-void my_postgresql_data_seek(B_DB *mdb, int row)
+void my_postgresql_data_seek(B_DB *mdb, int row)
{
// set the row number to be returned on the next call
// to my_postgresql_fetch_row
mdb->field_number = field;
}
-int my_postgresql_query(B_DB *mdb, char *query) {
- Dmsg0(50, "my_postgresql_query started\n");
+/*
+ * Note, if this routine returns 1 (failure), Bacula expects
+ * that no result has been stored.
+ * This is where QUERY_DB comes with Postgresql.
+ *
+ * Returns: 0 on success
+ * 1 on failure
+ *
+ */
+int my_postgresql_query(B_DB *mdb, const char *query)
+{
+ Dmsg0(500, "my_postgresql_query started\n");
// We are starting a new query. reset everything.
mdb->num_rows = -1;
mdb->row_number = -1;
mdb->field_number = -1;
+ if (mdb->result) {
+ PQclear(mdb->result); /* hmm, someone forgot to free?? */
+ mdb->result = NULL;
+ }
+
+ Dmsg1(500, "my_postgresql_query starts with '%s'\n", query);
+
+ for (int i=0; i < 10; i++) {
+ mdb->result = PQexec(mdb->db, query);
+ if (mdb->result) {
+ break;
+ }
+ bmicrosleep(5, 0);
+ }
+ if (!mdb->result) {
+ Dmsg1(50, "Query failed: %s\n", query);
+ goto bail_out;
+ }
- Dmsg1(50, "my_postgresql_query starts with '%s'\n", query);
- mdb->result = PQexec(mdb->db, query);
mdb->status = PQresultStatus(mdb->result);
if (mdb->status == PGRES_TUPLES_OK || mdb->status == PGRES_COMMAND_OK) {
- Dmsg1(50, "we have a result\n", query);
+ Dmsg1(500, "we have a result\n", query);
// how many fields in the set?
- mdb->num_fields = (int) PQnfields(mdb->result);
- Dmsg1(50, "we have %d fields\n", mdb->num_fields);
+ mdb->num_fields = (int)PQnfields(mdb->result);
+ Dmsg1(500, "we have %d fields\n", mdb->num_fields);
- mdb->num_rows = PQntuples(mdb->result);
- Dmsg1(50, "we have %d rows\n", mdb->num_rows);
+ mdb->num_rows = PQntuples(mdb->result);
+ Dmsg1(500, "we have %d rows\n", mdb->num_rows);
- mdb->status = 0;
+ mdb->row_number = 0; /* we can start to fetch something */
+ mdb->status = 0; /* succeed */
} else {
- Dmsg1(50, "we failed\n", query);
- mdb->status = 1;
+ Dmsg1(50, "Result status failed: %s\n", query);
+ goto bail_out;
}
- Dmsg0(50, "my_postgresql_query finishing\n");
+ Dmsg0(500, "my_postgresql_query finishing\n");
+ return mdb->status;
+bail_out:
+ Dmsg1(500, "we failed\n", query);
+ PQclear(mdb->result);
+ mdb->result = NULL;
+ mdb->status = 1; /* failed */
return mdb->status;
}
-void my_postgresql_free_result (B_DB *mdb)
+void my_postgresql_free_result(B_DB *mdb)
{
+
+ db_lock(mdb);
if (mdb->result) {
PQclear(mdb->result);
+ mdb->result = NULL;
}
if (mdb->row) {
free(mdb->fields);
mdb->fields = NULL;
}
+ db_unlock(mdb);
}
-int my_postgresql_currval(B_DB *mdb, char *table_name)
+int 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.
- // currval is local to our session. It is not affected by
+ // currval is local to our session. It is not affected by
// other transactions.
// Determine the name of the sequence.
char sequence[NAMEDATALEN-1];
char query [NAMEDATALEN+50];
PGresult *result;
- int id = 0;
+ int id = 0;
if (strcasecmp(table_name, "basefiles") == 0) {
bstrncpy(sequence, "basefiles_baseid", sizeof(sequence));
bstrncat(sequence, "_seq", sizeof(sequence));
bsnprintf(query, sizeof(query), "SELECT currval('%s')", sequence);
-// Mmsg(&query, "SELECT currval('%s')", sequence);
- Dmsg1(50, "my_postgresql_currval invoked with '%s'\n", query);
- result = PQexec(mdb->db, query);
+ Dmsg1(500, "my_postgresql_currval invoked with '%s'\n", query);
+ for (int i=0; i < 10; i++) {
+ result = PQexec(mdb->db, query);
+ if (result) {
+ break;
+ }
+ bmicrosleep(5, 0);
+ }
+ if (!result) {
+ Dmsg1(50, "Query failed: %s\n", query);
+ goto bail_out;
+ }
- Dmsg0(50, "exec done");
+ Dmsg0(500, "exec done");
if (PQresultStatus(result) == PGRES_TUPLES_OK) {
- Dmsg0(50, "getting value");
+ Dmsg0(500, "getting value");
id = atoi(PQgetvalue(result, 0, 0));
- Dmsg2(50, "got value '%s' which became %d\n", PQgetvalue(result, 0, 0), id);
+ Dmsg2(500, "got value '%s' which became %d\n", PQgetvalue(result, 0, 0), id);
} else {
+ Dmsg1(50, "Result status failed: %s\n", query);
Mmsg1(&mdb->errmsg, _("error fetching currval: %s\n"), PQerrorMessage(mdb->db));
}
+bail_out:
PQclear(result);
return id;
}
+#ifdef HAVE_BATCH_FILE_INSERT
+
+int my_postgresql_batch_start(JCR *jcr, B_DB *mdb)
+{
+ const char *query = "COPY batch FROM STDIN";
+
+ Dmsg0(500, "my_postgresql_batch_start started\n");
+
+ if (my_postgresql_query(mdb,
+ "CREATE TEMPORARY TABLE batch ("
+ "fileindex int,"
+ "jobid int,"
+ "path varchar,"
+ "name varchar,"
+ "lstat varchar,"
+ "md5 varchar)") == 1)
+ {
+ Dmsg0(500, "my_postgresql_batch_start failed\n");
+ return 1;
+ }
+
+ // We are starting a new query. reset everything.
+ mdb->num_rows = -1;
+ mdb->row_number = -1;
+ mdb->field_number = -1;
+
+ my_postgresql_free_result(mdb);
+
+ for (int i=0; i < 10; i++) {
+ mdb->result = PQexec(mdb->db, query);
+ if (mdb->result) {
+ break;
+ }
+ bmicrosleep(5, 0);
+ }
+ if (!mdb->result) {
+ Dmsg1(50, "Query failed: %s\n", query);
+ goto bail_out;
+ }
+
+ mdb->status = PQresultStatus(mdb->result);
+ if (mdb->status == PGRES_COPY_IN) {
+ // how many fields in the set?
+ mdb->num_fields = (int) PQnfields(mdb->result);
+ mdb->num_rows = 0;
+ mdb->status = 1;
+ } else {
+ Dmsg1(50, "Result status failed: %s\n", query);
+ goto bail_out;
+ }
+
+ Dmsg0(500, "my_postgresql_batch_start finishing\n");
+
+ return mdb->status;
+
+bail_out:
+ Mmsg1(&mdb->errmsg, _("error starting batch mode: %s"), PQerrorMessage(mdb->db));
+ mdb->status = 0;
+ PQclear(mdb->result);
+ mdb->result = NULL;
+ return mdb->status;
+}
+
+/* set error to something to abort operation */
+int my_postgresql_batch_end(JCR *jcr, B_DB *mdb, const char *error)
+{
+ int res;
+ int count=30;
+ PGresult *result;
+ Dmsg0(500, "my_postgresql_batch_end started\n");
+
+ if (!mdb) { /* no files ? */
+ return 0;
+ }
+
+ do {
+ res = PQputCopyEnd(mdb->db, error);
+ } while (res == 0 && --count > 0);
+
+ if (res == 1) {
+ Dmsg0(500, "ok\n");
+ mdb->status = 1;
+ }
+
+ if (res <= 0) {
+ Dmsg0(500, "we failed\n");
+ 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;
+}
+
+int my_postgresql_batch_insert(JCR *jcr, B_DB *mdb, ATTR_DBR *ar)
+{
+ int res;
+ int count=30;
+ size_t len;
+ const char *digest;
+ char ed1[50];
+
+ mdb->esc_name = check_pool_memory_size(mdb->esc_name, mdb->fnl*2+1);
+ my_postgresql_copy_escape(mdb->esc_name, mdb->fname, mdb->fnl);
+
+ mdb->esc_path = check_pool_memory_size(mdb->esc_path, mdb->pnl*2+1);
+ my_postgresql_copy_escape(mdb->esc_path, mdb->path, mdb->pnl);
+
+ if (ar->Digest == NULL || ar->Digest[0] == 0) {
+ digest = "0";
+ } else {
+ digest = ar->Digest;
+ }
+
+ len = Mmsg(mdb->cmd, "%u\t%s\t%s\t%s\t%s\t%s\n",
+ ar->FileIndex, edit_int64(ar->JobId, ed1), mdb->esc_path,
+ mdb->esc_name, ar->attr, digest);
+
+ do {
+ res = PQputCopyData(mdb->db,
+ mdb->cmd,
+ len);
+ } while (res == 0 && --count > 0);
+
+ if (res == 1) {
+ Dmsg0(500, "ok\n");
+ mdb->changes++;
+ mdb->status = 1;
+ }
+
+ if (res <= 0) {
+ Dmsg0(500, "we failed\n");
+ mdb->status = 0;
+ Mmsg1(&mdb->errmsg, _("error copying in batch mode: %s"), PQerrorMessage(mdb->db));
+ }
+
+ Dmsg0(500, "my_postgresql_batch_insert finishing\n");
+
+ return mdb->status;
+}
+
+#endif /* HAVE_BATCH_FILE_INSERT */
+
+/*
+ * Escape strings so that PostgreSQL is happy on COPY
+ *
+ * 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.
+ */
+char *my_postgresql_copy_escape(char *dest, char *src, size_t len)
+{
+ /* we have to escape \t, \n, \r, \ */
+ char c = '\0' ;
+
+ while (len > 0 && *src) {
+ switch (*src) {
+ case '\n':
+ c = 'n';
+ break;
+ case '\\':
+ c = '\\';
+ break;
+ case '\t':
+ c = 't';
+ break;
+ case '\r':
+ c = 'r';
+ break;
+ default:
+ c = '\0' ;
+ }
+
+ if (c) {
+ *dest = '\\';
+ dest++;
+ *dest = c;
+ } else {
+ *dest = *src;
+ }
+
+ len--;
+ src++;
+ dest++;
+ }
+
+ *dest = '\0';
+ return dest;
+}
+
+#ifdef HAVE_BATCH_FILE_INSERT
+const char *my_pg_batch_lock_path_query =
+ "BEGIN; LOCK TABLE Path IN SHARE ROW EXCLUSIVE MODE";
+
+
+const char *my_pg_batch_lock_filename_query =
+ "BEGIN; LOCK TABLE Filename IN SHARE ROW EXCLUSIVE MODE";
+
+const char *my_pg_batch_unlock_tables_query = "COMMIT";
+
+const char *my_pg_batch_fill_path_query =
+ "INSERT INTO Path (Path) "
+ "SELECT a.Path FROM "
+ "(SELECT DISTINCT Path FROM batch) AS a "
+ "WHERE NOT EXISTS (SELECT Path FROM Path WHERE Path = a.Path) ";
+
+
+const char *my_pg_batch_fill_filename_query =
+ "INSERT INTO Filename (Name) "
+ "SELECT a.Name FROM "
+ "(SELECT DISTINCT Name FROM batch) as a "
+ "WHERE NOT EXISTS "
+ "(SELECT Name FROM Filename WHERE Name = a.Name)";
+#endif /* HAVE_BATCH_FILE_INSERT */
#endif /* HAVE_POSTGRESQL */
projects / bacula / bacula / blobdiff