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RenameFile
Rename a file.
Short Name
ctRENFIL()
Type
Low-Level function
Declaration
COUNT RenameFile(FILNO filno, pTEXT newname)
Description
In V12 the file number typedef was formally changed from COUNT, a two-byte value to FILNO, a four-byte value. Refer to this link for compatibility details. Four Byte File Numbering
RenameFile() renames a file that has been opened exclusively, meaning no other processes have the file open. RenameFile() is particularly useful for allowing a client application to rename a file controlled by a FairCom Server.
A superfile host cannot have any members open when it is renamed. A superfile member must have a correct matching host name in the newname string. For example, if the file being renamed is myhost!oldname, the newname string must be of the form “myhost!newname”. A file opened as part of a mirrored pair cannot be renamed.
Note: filno corresponds to the file to rename, and which must have been open exclusively. When renaming transaction logged files, it would be wise to include SKIP_MISSING_FILES YES in the FairCom Server configuration file since the log may contain references to the old file, which will not appear present during recovery.
Return
Value |
Symbolic Constant |
Explanation |
|---|---|---|
0 |
NO_ERROR |
Successful file rename. |
22 |
FNUM_ERR |
Bad filno. |
62 |
LERR_ERR |
File must be opened exclusively. |
67 |
RENF_ERR |
Could not rename file, usually because newname already exists or newname implies an unsupported move of the file to a different directory. |
70 |
TEXS_ERR |
Cannot rename a transaction logged file in the middle of a transaction in which it is updated. |
418 |
SNAM_ERR |
Bad superfile member name. Old name and new name must have matching hosts. |
446 |
BMOD_ERR |
Attempt to rename a superfile host directory. |
454 |
NSUP_ERR |
Cannot rename a file opened as part of a mirrored pair. Open the file with ctMIRROR_SKP. |
See c-tree Error Codes for a complete listing of valid c-tree error values.
