InnoDB: Add option for disabling innodb_status.<pid> files.

InnoDB: Implement tmpfile() differently on Windows (Bug #3998)


innobase/dict/dict0dict.c:
  Check the return value of os_file_create_tmpfile(),
  as it can now return NULL
innobase/include/os0file.h:
  Note that os_file_create_tmpfile() can now return NULL
innobase/include/srv0srv.h:
  Add a new server flag (srv_innodb_status) to disable
  the creation of innodb_status.<pid> files
innobase/lock/lock0lock.c:
  Check the return value of os_file_create_tmpfile(),
  as it can now return NULL
innobase/os/os0file.c:
  os_file_create_tmpfile(): separate implementation for Win32;
  errors will be reported but will not cause assertion failure
innobase/srv/srv0srv.c:
  Add a new server flag (srv_innodb_status) to disable
  the creation of innodb_status.<pid> files
innobase/srv/srv0start.c:
  innobase_start_or_create_for_mysql(): create srv_monitor_file
  with tmpfile() or with a visible name "innodb_status.<pid>",
  depending on the setting of the flag srv_innodb_status.
sql/ha_innodb.cc:
  innobase_init(): initialize srv_innodb_status
  update_table_comment(), get_foreign_key_create_info(): replace
  tmpfile() with os_file_create_tmpfile()
sql/ha_innodb.h:
  Add new Boolean flag, innobase_create_status_file.
sql/mysqld.cc:
  Add new Boolean flag, innodb_status_file

innobase/dict/dict0dict.c

@@ -643,6 +643,7 @@ dict_init(void)
 	rw_lock_set_level(&dict_operation_lock, SYNC_DICT_OPERATION);
 
 	dict_foreign_err_file = os_file_create_tmpfile();
+	ut_a(dict_foreign_err_file);
 	mutex_create(&dict_foreign_err_mutex);
 	mutex_set_level(&dict_foreign_err_mutex, SYNC_ANY_LATCH);
 }

innobase/include/os0file.h

@@ -139,7 +139,7 @@ Creates a temporary file. In case of error, causes abnormal termination. */
 FILE*
 os_file_create_tmpfile(void);
 /*========================*/
-				/* out: temporary file handle (never NULL) */
+				/* out: temporary file handle, or NULL */
 /********************************************************************
 A simple function to open or create a file. */
 

innobase/include/srv0srv.h

@@ -92,6 +92,8 @@ extern lint	srv_conc_n_threads;
 
 extern ibool	srv_fast_shutdown;
 
+extern ibool	srv_innodb_status;
+
 extern ibool	srv_use_doublewrite_buf;
 
 extern ibool    srv_set_thread_priorities;

innobase/lock/lock0lock.c

@@ -509,6 +509,7 @@ lock_sys_create(
 	/* hash_create_mutexes(lock_sys->rec_hash, 2, SYNC_REC_LOCK); */
 
 	lock_latest_err_file = os_file_create_tmpfile();
+	ut_a(lock_latest_err_file);
 }
 
 /*************************************************************************

innobase/os/os0file.c

@@ -377,16 +377,33 @@ Creates a temporary file. In case of error, causes abnormal termination. */
 FILE*
 os_file_create_tmpfile(void)
 /*========================*/
-				/* out: temporary file handle (never NULL) */
+				/* out: temporary file handle, or NULL */
 {
-	FILE*	file	= tmpfile();
+	FILE*	file;
+#ifdef __WIN__
+	int	fd	= -1;
+	char*	name;
+	file = NULL;
+	if (NULL == (name = tempnam(fil_path_to_mysql_datadir, "ib"))
+		|| -1 == (fd = _open(name, _O_CREAT | _O_EXCL | _O_RDWR
+			| _O_SEQUENTIAL | _O_SHORT_LIVED | _O_TEMPORARY))
+		|| NULL == (file = fdopen(fd, "w+b"))) {
+		ut_print_timestamp(stderr);
+		fprintf(stderr, "  InnoDB: Error: unable to create"
+			" temporary file %s\n", name ? name : "name");
+		if (fd != -1) {
+			_close(fd);
+		}
+	}
+	free(name);
+#else /* __WIN__ */
+	file = tmpfile();
 	if (file == NULL) {
 		ut_print_timestamp(stderr);
 		fputs("  InnoDB: Error: unable to create temporary file\n",
 			stderr);
-		os_file_handle_error(NULL, "tmpfile");
-		ut_error;
 	}
+#endif /* __WIN__ */
 	return(file);
 }
 

innobase/srv/srv0srv.c

@@ -223,6 +223,9 @@ merge to completion before shutdown */
 
 ibool	srv_fast_shutdown	= FALSE;
 
+/* Generate a innodb_status.<pid> file */
+ibool	srv_innodb_status	= FALSE;
+
 ibool	srv_use_doublewrite_buf	= TRUE;
 
 ibool   srv_set_thread_priorities = TRUE;

innobase/srv/srv0start.c

@@ -1023,16 +1023,24 @@ NetWare. */
 
 	mutex_create(&srv_monitor_file_mutex);
 	mutex_set_level(&srv_monitor_file_mutex, SYNC_NO_ORDER_CHECK);
-	srv_monitor_file_name = mem_alloc(
-			strlen(fil_path_to_mysql_datadir) +
-			20 + sizeof "/innodb_status.");
-	sprintf(srv_monitor_file_name, "%s/innodb_status.%lu",
-		fil_path_to_mysql_datadir, os_proc_get_number());
-	srv_monitor_file = fopen(srv_monitor_file_name, "w+");
-	if (!srv_monitor_file) {
-		fprintf(stderr, "InnoDB: unable to create %s: %s\n",
-			srv_monitor_file_name, strerror(errno));
-		return(DB_ERROR);
+	if (srv_innodb_status) {
+		srv_monitor_file_name = mem_alloc(
+				strlen(fil_path_to_mysql_datadir) +
+				20 + sizeof "/innodb_status.");
+		sprintf(srv_monitor_file_name, "%s/innodb_status.%lu",
+			fil_path_to_mysql_datadir, os_proc_get_number());
+		srv_monitor_file = fopen(srv_monitor_file_name, "w+");
+		if (!srv_monitor_file) {
+			fprintf(stderr, "InnoDB: unable to create %s: %s\n",
+				srv_monitor_file_name, strerror(errno));
+			return(DB_ERROR);
+		}
+	} else {
+		srv_monitor_file_name = NULL;
+		srv_monitor_file = os_file_create_tmpfile();
+		if (!srv_monitor_file) {
+			return(DB_ERROR);
+		}
 	}
 
 	/* Restrict the maximum number of file i/o threads */
@@ -1527,8 +1535,10 @@ innobase_shutdown_for_mysql(void)
 	if (srv_monitor_file) {
 		fclose(srv_monitor_file);
 		srv_monitor_file = 0;
-		unlink(srv_monitor_file_name);
-		mem_free(srv_monitor_file_name);
+		if (srv_monitor_file_name) {
+			unlink(srv_monitor_file_name);
+			mem_free(srv_monitor_file_name);
+		}
 	}
 
 	mutex_free(&srv_monitor_file_mutex);

sql/ha_innodb.cc

@@ -103,6 +103,7 @@ uint	innobase_flush_log_at_trx_commit	= 1;
 my_bool innobase_log_archive			= FALSE;
 my_bool	innobase_use_native_aio			= FALSE;
 my_bool	innobase_fast_shutdown			= TRUE;
+my_bool innobase_create_status_file		= FALSE;
 
 static char *internal_innobase_data_file_path	= NULL;
 
@@ -861,6 +862,7 @@ innobase_init(void)
 	srv_force_recovery = (ulint) innobase_force_recovery;
 
 	srv_fast_shutdown = (ibool) innobase_fast_shutdown;
+	srv_innodb_status = (ibool) innobase_create_status_file;
 
 	srv_print_verbose_log = mysql_embedded ? 0 : 1;
 
@@ -4270,7 +4272,7 @@ ha_innobase::update_table_comment(
 	trx_search_latch_release_if_reserved(prebuilt->trx);
 	str = NULL;
 
-	if (FILE* file = tmpfile()) {
+	if (FILE* file = os_file_create_tmpfile()) {
 		long	flen;
 
 		/* output the data to a temporary file */
@@ -4330,7 +4332,7 @@ ha_innobase::get_foreign_key_create_info(void)
 
 	update_thd(current_thd);
 
-	if (FILE* file = tmpfile()) {
+	if (FILE* file = os_file_create_tmpfile()) {
 		long	flen;
 
 		prebuilt->trx->op_info = (char*)"getting info on foreign keys";

sql/ha_innodb.h

@@ -203,7 +203,8 @@ extern char *innobase_log_group_home_dir, *innobase_log_arch_dir;
 extern char *innobase_unix_file_flush_method;
 /* The following variables have to be my_bool for SHOW VARIABLES to work */
 extern my_bool innobase_log_archive,
-               innobase_use_native_aio, innobase_fast_shutdown;
+               innobase_use_native_aio, innobase_fast_shutdown,
+               innobase_create_status_file;
 extern "C" {
 extern ulong srv_max_buf_pool_modified_pct;
 }

sql/mysqld.cc

@@ -3458,6 +3458,7 @@ enum options_mysqld {
   OPT_INNODB_LOCK_WAIT_TIMEOUT,
   OPT_INNODB_THREAD_CONCURRENCY,
   OPT_INNODB_FORCE_RECOVERY,
+  OPT_INNODB_STATUS_FILE,
   OPT_INNODB_MAX_DIRTY_PAGES_PCT,
   OPT_BDB_CACHE_SIZE,
   OPT_BDB_LOG_BUFFER_SIZE,
@@ -3625,6 +3626,10 @@ struct my_option my_long_options[] =
   {"innodb_fast_shutdown", OPT_INNODB_FAST_SHUTDOWN,
    "Speeds up server shutdown process", (gptr*) &innobase_fast_shutdown,
    (gptr*) &innobase_fast_shutdown, 0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0},
+  {"innodb_status_file", OPT_INNODB_STATUS_FILE,
+   "Enable SHOW INNODB STATUS output in the innodb_status.<pid> file",
+   (gptr*) &innobase_create_status_file, (gptr*) &innobase_create_status_file,
+   0, GET_BOOL, OPT_ARG, 0, 0, 0, 0, 0, 0},
   {"innodb_max_dirty_pages_pct", OPT_INNODB_MAX_DIRTY_PAGES_PCT,
    "Percentage of dirty pages allowed in bufferpool", (gptr*) &srv_max_buf_pool_modified_pct,
    (gptr*) &srv_max_buf_pool_modified_pct, 0, GET_ULONG, REQUIRED_ARG, 90, 0, 100, 0, 0, 0},