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| Chapter 3: The Database Tools Interface |
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| DBTools structures |
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| a_writefile structure |
Holds information needed for database write file management using the DBTools library.
typedef struct a_writefile {
unsigned short version;
const char * writename;
const char * wlogname;
const char * dbname;
const char * forcename;
MSG_CALLBACK confirmrtn;
MSG_CALLBACK errorrtn;
MSG_CALLBACK msgrtn;
char action;
char quiet : 1;
char erase : 1;
char force : 1;
char mirrorname_present : 1;
const char * wlogmirrorname;
} a_writefile;| Member | Description |
| version | DBTools version number. |
| writename | Write file name. |
| wlogname | Used only when creating write files. |
| dbname | Used when changing and creating write files. |
| forcename | Forced file name reference. |
| confirmrtn | Callback routine for confirming an action. Only used when creating a write file. |
| errorrtn | Callback routine for handling an error message. |
| msgrtn | Callback routine for handling an information message. |
| action | Reserved for use by Sybase. |
| quiet | Operate without printing messages (1), or print messages (0). |
| erase | Used for creating write files only. Erase without confirmation (1) or with confirmation (1). |
| force | If 1, force the write file to point to a named file. |
| mirrorname_present | Used when creating only. Set to 1. Indicates that the version of DBTools is recent enough to support the mirrorname field. |
| wlogmirrorname | Name of the transaction log mirror. |
For more information on callback functions, see Using callback functions .
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