diff options
| author | unknown <serg@serg.mylan> | 2005-04-05 13:17:49 +0200 |
|---|---|---|
| committer | unknown <serg@serg.mylan> | 2005-04-05 13:17:49 +0200 |
| commit | cd0a50bf34477bf547cc4a66f0d5d9651574a65b (patch) | |
| tree | a9dd96a05ad4e0e84d0b4f7711b882492d5ea59d /mysys/my_sync.c | |
| parent | 5dbcb1555fb63618be171b478a1af8a49b3b46ef (diff) | |
| download | mariadb-git-cd0a50bf34477bf547cc4a66f0d5d9651574a65b.tar.gz | |
remove the rest of isam/merge references
fix a race condition in TC_LOG_BINLOG::unlog
include/Makefile.am:
remove the rest of isam/merge references
include/config-win.h:
unused and abused macro removed
include/my_pthread.h:
unused and abused macro removed
include/my_sys.h:
MY_IGNORE_BADFD flag
include/mysql_embed.h:
remove the rest of isam/merge references
mysql-test/r/replace.result:
remove the rest of isam/merge references
mysql-test/t/replace.test:
remove the rest of isam/merge references
mysql-test/t/xa.test:
comment
mysys/my_sync.c:
MY_IGNORE_BADFD flag
sql/handler.cc:
remove the rest of isam/merge references
sql/log.cc:
fix a race condition in TC_LOG_BINLOG::unlog
preparation for binlog group commit
sql/mysql_priv.h:
remove duplicates
sql/mysqld.cc:
remove the rest of isam/merge references
sql/opt_range.cc:
remove the rest of isam/merge references
sql/set_var.cc:
hide unused variables. simplify sync_binlog code
sql/sql_base.cc:
remove the rest of isam/merge references
sql/sql_class.h:
cleanup
Diffstat (limited to 'mysys/my_sync.c')
| -rw-r--r-- | mysys/my_sync.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/mysys/my_sync.c b/mysys/my_sync.c index bd372f03c87..bfaf09ce402 100644 --- a/mysys/my_sync.c +++ b/mysys/my_sync.c @@ -27,7 +27,14 @@ my_flags Flags (now only MY_WME is supported) NOTE - If file system supports its, only file data is synced, not inode date + If file system supports its, only file data is synced, not inode data. + + MY_IGNORE_BADFD is useful when fd is "volatile" - not protected by a + mutex. In this case by the time of fsync(), fd may be already closed by + another thread, or even reassigned to a different file. With this flag - + MY_IGNORE_BADFD - such a situation will not be considered an error. + (which is correct behaviour, if we know that the other thread synced the + file before closing) RETURN 0 ok @@ -55,10 +62,15 @@ int my_sync(File fd, myf my_flags) if (res) { - if (!(my_errno= errno)) - my_errno= -1; /* Unknown error */ - if (my_flags & MY_WME) + int er= errno; + if (!(my_errno= er)) + my_errno= -1; /* Unknown error */ + if (my_flags & MY_IGNORE_BADFD && + (er == EBADF || er == EINVAL || er == EROFS)) + res= 0; + else if (my_flags & MY_WME) my_error(EE_SYNC, MYF(ME_BELL+ME_WAITTANG), my_filename(fd), my_errno); } DBUG_RETURN(res); -} /* my_read */ +} /* my_sync */ + |