diff options
Diffstat (limited to 'storage/innobase/os/os0file.cc')
| -rw-r--r-- | storage/innobase/os/os0file.cc | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/storage/innobase/os/os0file.cc b/storage/innobase/os/os0file.cc index 208fe356fbe..5d0f3f4fc9c 100644 --- a/storage/innobase/os/os0file.cc +++ b/storage/innobase/os/os0file.cc @@ -5407,25 +5407,27 @@ fallback: return(current_size >= size && os_file_flush(file)); } -/** Truncates a file to a specified size in bytes. -Do nothing if the size to preserve is greater or equal to the current -size of the file. +/** Truncate a file to a specified size in bytes. @param[in] pathname file path @param[in] file file to be truncated -@param[in] size size to preserve in bytes +@param[in] size size preserved in bytes +@param[in] allow_shrink whether to allow the file to become smaller @return true if success */ bool os_file_truncate( const char* pathname, os_file_t file, - os_offset_t size) + os_offset_t size, + bool allow_shrink) { - /* Do nothing if the size preserved is larger than or equal to the - current size of file */ - os_offset_t size_bytes = os_file_get_size(file); + if (!allow_shrink) { + /* Do nothing if the size preserved is larger than or + equal to the current size of file */ + os_offset_t size_bytes = os_file_get_size(file); - if (size >= size_bytes) { - return(true); + if (size >= size_bytes) { + return(true); + } } #ifdef _WIN32 |