/*
- * Bacula Catalog Database routines specific to SQLite
- *
- * Kern Sibbald, January 2002
- *
- * Version $Id$
- */
+ Bacula® - The Network Backup Solution
-/*
- Copyright (C) 2002 Kern Sibbald and John Walker
+ Copyright (C) 2000-2007 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 plus additions
+ that are listed 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 John Walker.
+ 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
+ *
+ * Version $Id$
*/
+
/* 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_SQLITE
+#if HAVE_SQLITE || HAVE_SQLITE3
/* -----------------------------------------------------------------------
*
* -----------------------------------------------------------------------
*/
-extern char *working_directory;
-
/* List of open databases */
static BQUEUE db_list = {&db_list, &db_list};
static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
-int QueryDB(char *file, int line, B_DB *db, char *select_cmd);
+int QueryDB(const char *file, int line, JCR *jcr, B_DB *db, char *select_cmd);
+
+
+/*
+ * Retrieve database type
+ */
+const char *
+db_get_type(void)
+{
+ return "SQLite";
+}
+
+/*
+ * When using mult_db_connections = 1,
+ * sqlite can be BUSY. We just need sleep a little in this case.
+ */
+
+#ifdef HAVE_SQLITE3
+static int my_busy_handler(void *arg, int calls)
+{
+ bmicrosleep(0, 500);
+ return 1;
+}
+#else
+static int my_busy_handler(void *arg, const char* p, int calls)
+{
+ bmicrosleep(0, 500);
+ return 1;
+}
+#endif
/*
* never have errors, or it is really fatal.
*/
B_DB *
-db_init_database(char *db_name, char *db_user, char *db_password)
+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;
- P(mutex); /* lock DB queue */
+ 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 */
+ if (!mult_db_connections) {
+ for (mdb=NULL; (mdb=(B_DB *)qnext(&db_list, &mdb->bq)); ) {
+ if (bstrcmp(mdb->db_name, db_name) &&
+ bstrcmp(mdb->db_address, db_address) &&
+ mdb->db_port == db_port) {
+ Dmsg2(300, "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");
+ Dmsg0(300, "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->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->cached_path = get_pool_memory(PM_FNAME);
mdb->cached_path_id = 0;
mdb->ref_count = 1;
- qinsert(&db_list, &mdb->bq); /* put db in list */
+ 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->allow_transactions = mult_db_connections;
+ qinsert(&db_list, &mdb->bq); /* put db in list */
V(mutex);
return mdb;
}
/*
* Now actually open the database. This can generate errors,
* which are returned in the errmsg
+ *
+ * DO NOT close the database or free(mdb) here !!!!
*/
int
-db_open_database(B_DB *mdb)
+db_open_database(JCR *jcr, B_DB *mdb)
{
char *db_name;
int len;
struct stat statbuf;
+ int errstat;
P(mutex);
if (mdb->connected) {
return 1;
}
mdb->connected = FALSE;
-#ifdef needed
- 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;
- }
-#endif
- if (rwl_init(&mdb->lock) != 0) {
- Mmsg1(&mdb->errmsg, "Unable to initialize DB lock. ERR=%s\n", strerror(errno));
+ if ((errstat=rwl_init(&mdb->lock)) != 0) {
+ Mmsg1(&mdb->errmsg, _("Unable to initialize DB lock. ERR=%s\n"),
+ strerror(errstat));
V(mutex);
return 0;
}
/* open the database */
- len = strlen(working_directory) + strlen(mdb->db_name) + 5;
+ 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);
+ Mmsg1(&mdb->errmsg, _("Database %s does not exist, please create it.\n"),
+ db_name);
free(db_name);
V(mutex);
return 0;
}
+
+#ifdef HAVE_SQLITE3
+ int stat = sqlite3_open(db_name, &mdb->db);
+ if (stat != SQLITE_OK) {
+ mdb->sqlite_errmsg = (char *)sqlite3_errmsg(mdb->db);
+ sqlite3_close(mdb->db);
+ mdb->db = NULL;
+ } else {
+ mdb->sqlite_errmsg = NULL;
+ }
+#ifdef SQLITE3_INIT_QUERY
+ db_sql_query(mdb, SQLITE3_INIT_QUERY, NULL, NULL);
+#endif
+
+#else
mdb->db = sqlite_open(
- db_name, /* database name */
- 644, /* mode */
- &mdb->sqlite_errmsg); /* error message */
+ db_name, /* database name */
+ 644, /* mode */
+ &mdb->sqlite_errmsg); /* error message */
+#endif
+
+ Dmsg0(300, "sqlite_open\n");
- 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;
- }
+ }
+ mdb->connected = true;
free(db_name);
- if (!check_tables_version(mdb)) {
+ if (!check_tables_version(jcr, mdb)) {
V(mutex);
return 0;
}
- mdb->connected = TRUE;
+ /* set busy handler to wait when we use mult_db_connections = 1 */
+#ifdef HAVE_SQLITE3
+ sqlite3_busy_handler(mdb->db, my_busy_handler, NULL);
+#else
+ sqlite_busy_handler(mdb->db, my_busy_handler, NULL);
+#endif
+
V(mutex);
return 1;
}
void
-db_close_database(B_DB *mdb)
+db_close_database(JCR *jcr, B_DB *mdb)
{
+ 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);
if (mdb->connected && mdb->db) {
- sqlite_close(mdb->db);
+ sqlite_close(mdb->db);
}
-/* pthread_mutex_destroy(&mdb->mutex); */
- 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);
}
free(mdb);
}
V(mutex);
}
+void db_thread_cleanup()
+{
+#ifdef HAVE_SQLITE3
+ sqlite3_thread_cleanup();
+#endif
+}
+
/*
* Return the next unique index (auto-increment) for
- * the given table. Return NULL on error.
+ * the given table. Return 0 on error.
*/
-char *db_next_index(B_DB *mdb, char *table)
+int db_next_index(JCR *jcr, B_DB *mdb, char *table, char *index)
{
- 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;
-}
-
+ strcpy(index, "NULL");
+ return 1;
+}
+/*
+ * 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
db_escape_string(char *snew, char *old, int len)
{
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;
void *ctx;
};
-/*
- * 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)
{
- struct rh_data *rh_data = (struct rh_data *)arh_data;
+ struct rh_data *rh_data = (struct rh_data *)arh_data;
if (rh_data->result_handler) {
(*(rh_data->result_handler))(rh_data->ctx, num_fields, rows);
* 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)
+int db_sql_query(B_DB *mdb, const char *query, DB_RESULT_HANDLER *result_handler, void *ctx)
{
struct rh_data rh_data;
int stat;
db_lock(mdb);
if (mdb->sqlite_errmsg) {
+#ifdef HAVE_SQLITE3
+ sqlite3_free(mdb->sqlite_errmsg);
+#else
actuallyfree(mdb->sqlite_errmsg);
+#endif
mdb->sqlite_errmsg = NULL;
}
rh_data.result_handler = result_handler;
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));
+ Mmsg(mdb->errmsg, _("Query failed: %s: ERR=%s\n"), query, sql_strerror(mdb));
db_unlock(mdb);
return 0;
}
/*
* Submit a sqlite query and retrieve all the data
*/
-int my_sqlite_query(B_DB *mdb, char *cmd)
+int my_sqlite_query(B_DB *mdb, const char *cmd)
{
int stat;
+ my_sqlite_free_table(mdb);
if (mdb->sqlite_errmsg) {
+#ifdef HAVE_SQLITE3
+ sqlite3_free(mdb->sqlite_errmsg);
+#else
actuallyfree(mdb->sqlite_errmsg);
+#endif
mdb->sqlite_errmsg = NULL;
}
- stat = sqlite_get_table(mdb->db, cmd, &mdb->result, &mdb->nrow, &mdb->ncolumn,
- &mdb->sqlite_errmsg);
- mdb->row = 0; /* row fetched */
+ stat = sqlite_get_table(mdb->db, (char *)cmd, &mdb->result, &mdb->nrow, &mdb->ncolumn,
+ &mdb->sqlite_errmsg);
+ mdb->row = 0; /* row fetched */
return stat;
}
void my_sqlite_free_table(B_DB *mdb)
{
- unsigned int i;
+ int i;
if (mdb->fields_defined) {
for (i=0; i < sql_num_fields(mdb); i++) {
- free(mdb->fields[i]);
+ free(mdb->fields[i]);
}
free(mdb->fields);
- mdb->fields_defined = FALSE;
+ mdb->fields_defined = false;
+ }
+ if (mdb->result) {
+ sqlite_free_table(mdb->result);
+ mdb->result = NULL;
}
- sqlite_free_table(mdb->result);
- mdb->nrow = mdb->ncolumn = 0;
+ mdb->nrow = mdb->ncolumn = 0;
}
void my_sqlite_field_seek(B_DB *mdb, int field)
{
- unsigned int i, j;
+ int i, j;
if (mdb->result == NULL) {
return;
}
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 */
+ mdb->fields[i] = (SQL_FIELD *)malloc(sizeof(SQL_FIELD));
+ mdb->fields[i]->name = mdb->result[i];
+ mdb->fields[i]->length = cstrlen(mdb->fields[i]->name);
+ mdb->fields[i]->max_length = mdb->fields[i]->length;
+ for (j=1; j <= mdb->nrow; j++) {
+ int len;
+ if (mdb->result[i + mdb->ncolumn *j]) {
+ len = (uint32_t)cstrlen(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 */
}
mdb->fields_defined = TRUE;
}
- if (field > (int)sql_num_fields(mdb)) {
- field = (int)sql_num_fields(mdb);
+ if (field > sql_num_fields(mdb)) {
+ field = sql_num_fields(mdb);
}
mdb->field = field;
return mdb->fields[mdb->field++];
}
-static void
-list_dashes(B_DB *mdb, DB_LIST_HANDLER *send, void *ctx)
-{
- 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");
-}
+char *my_sqlite_batch_lock_query = "BEGIN";
+char *my_sqlite_batch_unlock_query = "COMMIT";
+char *my_sqlite_batch_fill_path_query = "INSERT INTO Path (Path) "
+ " SELECT DISTINCT Path FROM batch "
+ " EXCEPT SELECT Path FROM Path ";
-void
-list_result(B_DB *mdb, DB_LIST_HANDLER *send, void *ctx)
-{
- SQL_FIELD *field;
- SQL_ROW row;
- unsigned int i, col_len;
- char buf[2000], ewc[30];
+char *my_sqlite_batch_fill_filename_query = "INSERT INTO Filename (Name) "
+ " SELECT DISTINCT Name FROM batch "
+ " EXCEPT SELECT Name FROM Filename ";
- if (mdb->result == NULL || mdb->nrow == 0) {
- return;
- }
- /* 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);
- }
- send(ctx, "\n");
- }
- list_dashes(mdb, send, ctx);
-}
#endif /* HAVE_SQLITE */
projects / bacula / bacula / blobdiff