Merge mysqldev@production.mysql.com:my/mysql-5.0-release

into  mysql.com:/home/cps/mysql/trees/mysql-5.0

server-tools/instance-manager/Makefile.am

@@ -34,6 +34,7 @@ liboptions_a_CXXFLAGS= $(CXXFLAGS) \
 	-DDEFAULT_MYSQLD_PATH="$(libexecdir)/mysqld$(EXEEXT)" \
 	-DDEFAULT_MONITORING_INTERVAL="20" \
 	-DDEFAULT_PORT="2273" \
+        -DDEFAULT_CONFIG_FILE="/etc/my.cnf" \
 	-DPROTOCOL_VERSION=@PROTOCOL_VERSION@
 
 liboptions_a_SOURCES= options.h options.cc priv.h priv.cc

server-tools/instance-manager/commands.cc

@@ -22,6 +22,7 @@
 #include "mysql_manager_error.h"
 #include "protocol.h"
 #include "buffer.h"
+#include "options.h"
 
 #include <m_string.h>
 #include <mysql.h>
@@ -643,6 +644,7 @@ Set_option::Set_option(Instance_map *instance_map_arg,
   if ((instance= instance_map->find(name, len)))
   {
     instance_name= instance->options.instance_name;
+
      /* add prefix for add_option */
     if ((option_len_arg < MAX_OPTION_LEN - 1) ||
         (option_value_len_arg < MAX_OPTION_LEN - 1))
@@ -689,15 +691,22 @@ int Set_option::correct_file(int skip)
 {
   int error;
 
-  error= modify_defaults_file("/etc/my.cnf", option,
-			      option_value, instance_name, skip);
-  if (error > 0)
+  error= modify_defaults_file(Options::config_file, option,
+                              option_value, instance_name, skip);
+
+  switch (error)
+  {
+  case 0:
+    return 0;                                   /* everything was fine */
+  case 1:
     return ER_OUT_OF_RESOURCES;
-  else if (error < 0)
+  case 2:
     return ER_ACCESS_OPTION_FILE;
+  default:
+    DBUG_ASSERT(0);                           /* should never get here */
+  }
 
-  /* everything was fine */
-  return 0;
+  return 0;                                   /* keep compiler happy */
 }
 
 

server-tools/instance-manager/instance_map.cc

@@ -22,6 +22,8 @@
 
 #include "buffer.h"
 #include "instance.h"
+#include "log.h"
+#include "options.h"
 
 #include <m_ctype.h>
 #include <mysql_com.h>
@@ -111,9 +113,8 @@ err_new_instance:
 C_MODE_END
 
 
-Instance_map::Instance_map(const char *default_mysqld_path_arg,
-                           const char *first_option_arg):
-mysqld_path(default_mysqld_path_arg), first_option(first_option_arg)
+Instance_map::Instance_map(const char *default_mysqld_path_arg):
+mysqld_path(default_mysqld_path_arg)
 {
   pthread_mutex_init(&LOCK_instance_map, 0);
 }
@@ -202,7 +203,8 @@ int Instance_map::complete_initialization()
       hash_free should handle it's deletion => goto err, not
       err_instance.
     */
-    if (instance->complete_initialization(this, mysqld_path, DEFAULT_SINGLE_INSTANCE))
+    if (instance->complete_initialization(this, mysqld_path,
+                                          DEFAULT_SINGLE_INSTANCE))
       goto err;
   }
   else
@@ -236,18 +238,18 @@ int Instance_map::load()
 
   /* the name of the program may be orbitrary here in fact */
   argv_options[0]= "mysqlmanager";
-  if (first_option != NULL)
-  {
-    argc= 2;
-    argv_options[1]= first_option;
-    argv_options[2]= '\0';
-  }
-  else
-    argv_options[1]= '\0';
-
-  if (my_search_option_files("my", &argc, (char ***) &argv, &args_used,
-                             process_option, (void*) this) ||
-      complete_initialization())
+  argv_options[1]= '\0';
+
+  /*
+    If the routine failed, we'll simply fallback to defaults in
+    complete_initialization().
+  */
+  if (my_search_option_files(Options::config_file, &argc,
+                             (char ***) &argv, &args_used,
+                             process_option, (void*) this))
+    log_info("Falling back to compiled-in defaults");
+
+  if (complete_initialization())
     return 1;
 
   return 0;

server-tools/instance-manager/instance_map.h

@@ -64,8 +64,7 @@ public:
   int unlock();
   int init();
 
-  Instance_map(const char *default_mysqld_path_arg,
-               const char *first_option_arg);
+  Instance_map(const char *default_mysqld_path_arg);
   ~Instance_map();
 
   /* loads options from config files */
@@ -80,7 +79,6 @@ public:
   Guardian_thread *guardian;
 
 private:
-  const char *first_option;
   enum { START_HASH_SIZE = 16 };
   pthread_mutex_t LOCK_instance_map;
   HASH hash;

server-tools/instance-manager/manager.cc

@@ -68,7 +68,7 @@ void manager(const Options &options)
   */
 
   User_map user_map;
-  Instance_map instance_map(options.default_mysqld_path, options.first_option);
+  Instance_map instance_map(options.default_mysqld_path);
   Guardian_thread guardian_thread(thread_registry,
                                   &instance_map,
                                   options.monitoring_interval);

server-tools/instance-manager/mysqlmanager.cc

@@ -83,7 +83,7 @@ int main(int argc, char *argv[])
       if (set_user(options.user, user_info))
       {
         options.cleanup();
-        return 1;
+        goto err;
       }
   }
 

server-tools/instance-manager/options.cc

@@ -36,7 +36,7 @@ const char *Options::pid_file_name= QUOTE(DEFAULT_PID_FILE_NAME);
 const char *Options::socket_file_name= QUOTE(DEFAULT_SOCKET_FILE_NAME);
 const char *Options::password_file_name= QUOTE(DEFAULT_PASSWORD_FILE_NAME);
 const char *Options::default_mysqld_path= QUOTE(DEFAULT_MYSQLD_PATH);
-const char *Options::first_option= 0;           /* No default value */
+const char *Options::config_file= QUOTE(DEFAULT_CONFIG_FILE);
 const char *Options::bind_address= 0;           /* No default value */
 const char *Options::user= 0;                   /* No default value */
 uint Options::monitoring_interval= DEFAULT_MONITORING_INTERVAL;
@@ -143,7 +143,12 @@ static void usage()
   printf("Usage: %s [OPTIONS] \n", my_progname);
 
   my_print_help(my_long_options);
-  print_defaults("my", default_groups);
+  printf("\nThe following options may be given as the first argument:\n"
+  "--print-defaults        Print the program argument list and exit\n"
+  "--defaults-file=#       Only read manager configuration and instance\n"
+  "                        setings from the given file #. The same file\n"
+  "                        will be used to modify configuration of instances\n"
+  "                        with SET commands.\n");
   my_print_variables(my_long_options);
 }
 
@@ -204,31 +209,48 @@ C_MODE_END
 
 
 /*
-  - call load_defaults to load configuration file section
+  - Process argv of original program: get tid of --defaults-extra-file
+    and print a message if met there.
+  - call load_defaults to load configuration file section and save the pointer
+    for free_defaults.
   - call handle_options to assign defaults and command-line arguments
-  to the class members
-  if either of these function fail, exit the program
-  May not return.
+  to the class members.
+  if either of these function fail, return the error code.
 */
 
 int Options::load(int argc, char **argv)
 {
-  int rc;
+  saved_argv= argv;
 
   if (argc >= 2)
   {
-    if (is_prefix(argv[1],"--defaults-file=") ||
-        is_prefix(argv[1],"--defaults-extra-file="))
-      Options::first_option= argv[1];
+    if (is_prefix(argv[1], "--defaults-file="))
+    {
+      Options::config_file= strchr(argv[1], '=') + 1;
+    }
+    if (is_prefix(argv[1], "--defaults-extra-file=") ||
+        is_prefix(argv[1], "--no-defaults"))
+    {
+      /* the log is not enabled yet */
+      fprintf(stderr, "The --defaults-extra-file and --no-defaults options"
+                      " are not supported by\n"
+                      "Instance Manager. Program aborted.\n");
+      goto err;
+    }
   }
 
   /* config-file options are prepended to command-line ones */
-  load_defaults("my", default_groups, &argc, &argv);
-  Options::saved_argv= argv;
+  load_defaults(config_file, default_groups, &argc,
+                &saved_argv);
+
+  if ((handle_options(&argc, &saved_argv, my_long_options,
+                      get_one_option)) != 0)
+    goto err;
 
-  if ((rc= handle_options(&argc, &argv, my_long_options, get_one_option)) != 0)
-    return rc;
   return 0;
+
+err:
+  return 1;
 }
 
 void Options::cleanup()

server-tools/instance-manager/options.h

@@ -36,11 +36,12 @@ struct Options
   static const char *default_mysqld_path;
   static const char *user;
   /* the option which should be passed to process_default_option_files */
-  static const char *first_option;
   static uint monitoring_interval;
   static uint port_number;
   static const char *bind_address;
+  static const char *config_file;
 
+  /* argv pointer returned by load_defaults() to be used by free_defaults() */
   static char **saved_argv;
 
   static int load(int argc, char **argv);