Max open files handling moved to my_set_max_open_files()

This ensures that my_file_info takes this the max number of files into account and one can now use --open-files-limit on windows to increase number of used files up to 2048


client/client_priv.h:
  Added --open-files-limit to mysqlbinlog
client/mysqlbinlog.cc:
  Added --open-files-limit to mysqlbinlog
include/config-win.h:
  Define that you can have up to 2048 files open on windows
include/my_global.h:
  Allow override of OS_FILE_LIMIT
include/my_sys.h:
  Cleanup
  Added prototypes for my_set_max_open_files() and my_free_open_files()
libmysql/Makefile.shared:
  Added my_file.c
myisam/myisamlog.c:
  Use my_set_max_open_files()
mysys/Makefile.am:
  Use my_file.c (for mysqlbinlog)
mysys/my_alloc.c:
  Remove compiler warning
mysys/my_div.c:
  MY_NFILE -> my_file_limit
mysys/my_dup.c:
  MY_NFILE -> my_file_limit
mysys/my_fopen.c:
  MY_NFILE -> my_file_limit
mysys/my_open.c:
  MY_NFILE -> my_file_limit
mysys/my_static.c:
  Allow changing of open files limit
mysys/my_static.h:
  Allow changing of open files limit
sql/mysqld.cc:
  Max open files handling moved to my_set_max_open_files()

2 files changed, 9 insertions, 1 deletions

diff --git a/client/client_priv.h b/client/client_priv.h
index 910de1f03e9..0c71d72c0b4 100644
--- a/client/client_priv.h
+++ b/client/client_priv.h
@@ -43,4 +43,5 @@ enum options_client
   OPT_PROMPT, OPT_IGN_LINES,OPT_TRANSACTION,OPT_MYSQL_PROTOCOL,
   OPT_SHARED_MEMORY_BASE_NAME, OPT_FRM, OPT_SKIP_OPTIMIZATION,
   OPT_COMPATIBLE, OPT_RECONNECT, OPT_DELIMITER, OPT_SECURE_AUTH,
+  OPT_OPEN_FILES_LIMIT
 };
diff --git a/client/mysqlbinlog.cc b/client/mysqlbinlog.cc
index 82a57961c11..50c6e8ca6dc 100644
--- a/client/mysqlbinlog.cc
+++ b/client/mysqlbinlog.cc
@@ -33,6 +33,7 @@ ulong server_id = 0;
 // needed by net_serv.c
 ulong bytes_sent = 0L, bytes_received = 0L;
 ulong mysqld_net_retry_count = 10L;
+ulong open_files_limit;
 uint test_flags = 0; 
 static uint opt_protocol= 0;
 static FILE *result_file;
@@ -68,7 +69,7 @@ static MYSQL* safe_connect();
 
 class Load_log_processor
 {
-  char target_dir_name[MY_NFILE];
+  char target_dir_name[FN_REFLEN];
   int target_dir_name_len;
   DYNAMIC_ARRAY file_names;
 
@@ -429,6 +430,10 @@ static struct my_option my_long_options[] =
   {"read-from-remote-server", 'R', "Read binary logs from a MySQL server",
    (gptr*) &remote_opt, (gptr*) &remote_opt, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0,
    0, 0},
+  {"open_files_limit", OPT_OPEN_FILES_LIMIT,
+   "Used to reserve file descriptors for usage by this program",
+   (gptr*) &open_files_limit, (gptr*) &open_files_limit, 0, GET_ULONG,
+   REQUIRED_ARG, MY_NFILE, 8, OS_FILE_LIMIT, 0, 1, 0},
   {"short-form", 's', "Just show the queries, no extra info.",
    (gptr*) &short_form, (gptr*) &short_form, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0,
    0, 0},
@@ -878,6 +883,7 @@ int main(int argc, char** argv)
     exit(1);
   }
 
+  my_set_max_open_files(open_files_limit);
   if (remote_opt)
     mysql = safe_connect();
 
@@ -915,6 +921,7 @@ int main(int argc, char** argv)
     mysql_close(mysql);
   cleanup();
   free_defaults(defaults_argv);
+  my_free_open_file_info();
   my_end(0);
   exit(exit_value);
   DBUG_RETURN(exit_value);			// Keep compilers happy