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CSC#4944: Adding File_size to output of SHOW BINARY lOGS

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lars@mysql.com
2005-05-19 12:34:15 +02:00
parent af557076fa
commit 60021dbe02
3 changed files with 51 additions and 24 deletions
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33
sql/sql_repl.cc
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@ -1337,6 +1337,11 @@ int show_binlog_info(THD* thd)
int show_binlogs(THD* thd)
{
IO_CACHE *index_file;
LOG_INFO cur;
IO_CACHE log;
File file;
const char *errmsg= 0;
MY_STAT stat_area;
char fname[FN_REFLEN];
List<Item> field_list;
uint length;
@ -1351,20 +1356,42 @@ int show_binlogs(THD* thd)
}
field_list.push_back(new Item_empty_string("Log_name", 255));
field_list.push_back(new Item_return_int("File_size", 20,
MYSQL_TYPE_LONGLONG));
if (protocol->send_fields(&field_list, 1))
DBUG_RETURN(1);
mysql_bin_log.lock_index();
index_file=mysql_bin_log.get_index_file();
mysql_bin_log.get_current_log(&cur);
int cur_dir_len = dirname_length(cur.log_file_name);
reinit_io_cache(index_file, READ_CACHE, (my_off_t) 0, 0, 0);
/* The file ends with EOF or empty line */
while ((length=my_b_gets(index_file, fname, sizeof(fname))) > 1)
{
fname[--length] = '\0'; /* remove the newline */
protocol->prepare_for_resend();
int dir_len = dirname_length(fname);
/* The -1 is for removing newline from fname */
protocol->store(fname + dir_len, length-1-dir_len, &my_charset_bin);
protocol->store(fname + dir_len, length-dir_len, &my_charset_bin);
if(!(strncmp(fname+dir_len, cur.log_file_name+cur_dir_len, length-dir_len)))
{
/* this is the active log, use the active position */
protocol->store((ulonglong) cur.pos);
} else {
/* this is an old log, open it and find the size */
if ((file=open_binlog(&log, fname+dir_len, &errmsg)) >= 0)
{
protocol->store((ulonglong) my_b_filelength(&log));
end_io_cache(&log);
my_close(file, MYF(0));
} else {
/* the file wasn't openable, but 0 is an invalid value anyway */
protocol->store((ulonglong) 0);
}
}
if (protocol->write())
goto err;
}