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| Function | find_data_record_by_date |
| Include file | MEMCPTDT.H |
| Prototype | int find_data_record_by_date( char *date_str , char *ticker ) |
| Remarks | Given a ticker_str and a target_date, this routine will lookup and open
the data file and do a binary search for the target date. The routine
only looks for exact hits, use find_data_record_by_date_fsearch to
forward search through a file for a target date. Returns are
FALSE (0) - ticker or record not found, -1 - bounds error
( target_date |
| Function | find_data_rec_by_date_fsearch |
| Include file | MEMCPTDT.H |
| Prototype | int find_data_rec_by_date_fsearch( char *date_str , char *ticker ) |
| Remarks | This routine will front-end find_data_record_by_date() to support forward searching a data file for a target date. Retrys are controlled by FIND_REC_BY_DATE_RETRY_MAX and internal to the routine, dates are handled in julian (so 01/01/90 follows 12/31/89). The input date_str is in MM/DD/YY format. |
| Function | compare_dates |
| Include file | MEMCPTDT.H |
| Prototype | static int compare_dates( float date1 , float date2 ) |
| Remarks | A simple compare function that returns values like strcmp, 0 = match,
-1 = date1 |
| Function | load_last_n_data_records |
| Include file | MEMCPTDT.H |
| Prototype | DATA_REC * load_last_n_data_records( char *ticker , int last_cnt ) |
| Remarks | Given a ticker_str this routine will lookup and open the file, calloc a chunk of memory for the data records, load the last_cnt number of records from the file and return the fetched data in a DATA_REC array. |
| Function | copy_ticker_str |
| Include file | MEMCPTDT.H |
| Prototype | static void copy_ticker_str( char far *dest , char far *src ) |
| Remarks | Copy till the 1st WHITE space char on 2 far strs. |
| Function | ld_cpt_master_file_into_memory |
| Include file | MEMCPTDT.H |
| Prototype | void ld_cpt_master_file_into_memory( void ) |
| Remarks | Load a Metastock master file into memory for fast ticker lookup. This routine currently does not support Computrac (all you need to do to add support is change the lookup field). |
| Function | free_cpt_master_file_rec |
| Include file | MEMCPTDT.H |
| Prototype | void free_cpt_master_file_rec( void ) |
| Remarks | Return the old memory master file structure to far heap memory. |
| Function | mem_lookup_data_file_num |
| Include file | MEMCPTDT.H |
| Prototype | int mem_lookup_data_file_num( char *requested_ticker ) |
| Remarks | This routine will automatically support memory caching of Metastock master files for fast ticker lookup. If called with the GLOBAL var database_type != DATA_METASTOCK or the GLOBAL var no_mem_lookup == TRUE then the lookup will be performed by the standard lookup_data_file_num(). |
| Function | find_ticker_with_wildcard_supp |
| Include file | MEMCPTDT.H |
| Prototype | int find_ticker_with_wildcard_supp( int init_flag , char *ticker_str ) |
| Remarks | Search the master file memory structure for a user ticker_str by calling match_str_with_wildcard_support() whichs supports embedded "?"s as any one single character (just like MSDOS does). Call this routine with init_flag == TRUE to get the first match, then with init_flag == FALSE to get additional matches. Will return FALSE if no matches else TRUE if found and GLOBAL var cpt_master_found_idx will be set to the correct index in the master memory record of the found record. |
| Function | update_db_module_vars |
| Include file | MEMCPTDT.H |
| Prototype | static void update_db_module_vars( int mem_mst_idx ) |
| Remarks | Update the data access module vars with the info from the found memory cached master record. |
