| |
| /* |
| * Name: getInitCommand |
| * Input: FILE pointer |
| * Output: integer fan |
| * Return: GET_INIT_SUCCESS, or |
| * GET_INIT_IO_ERROR, |
| * GET_INIT_EARLY_EOI, |
| * GET_INIT_INVALID_FAN |
| * Description: Reads an Initialization command from the input stream via |
| * FILE pointer. Assumes the current stream pointer is |
| * correct, and returns file pointer open and current position |
| * immediately after command just read. The file pointer is |
| * expected to be at the beginning of the Init command |
| * immediately after the command code. The final position of |
| * the file pointer is immediately after the command, but |
| * before the final end-of-line indicator. The Init command |
| * has a very different format than the other database commands |
| * and the routine, so the routine is very different than the |
| * other command input routines. Also, the command should only |
| * appear once and at the beginning of the file. The format is |
| * an integer value which specifies the fan or order of the |
| * index. The absence of the fan, an incorrect fan value (< |
| * MINIMUM_FAN_SIZE ), or any I/O fault causes an error to |
| * occur with the return of an approriate error code. |
| * Calls: clearLine() |
| * errorMessage() |
| * getInt() |
| * System: |
| * Author: M.L.Rivas |
| * |
| * Revision History: |
| * |
| * Date Name Revision |
| * ------- --------------- ------------------------------ |
| * 24May99 Matthew Rivas Created |
| * |
| * Copyright 1999, Atlantic Aerospace Electronics Corp. |
| */ |
| |
| #include <assert.h> /* for assert() */ |
| #include <stdio.h> /* for FILE definition */ |
| #include "dataManagement.h" /* for primitive data types */ |
| #include "errorMessage.h" /* for errorMessage() definition */ |
| #include "getInt.h" /* for getInt() and return code definitions */ |
| #include "getInitCommand.h" /* for getInitCommand() return codes */ |
| |
| /* |
| * Function prototypes |
| */ |
| extern void clearLine( FILE *file ); |
| |
| Int getInitCommand( FILE *file, /* file for reading */ |
| Int *fan ) /* output fan read */ |
| { /* begin getInitCommand() */ |
| Int returnCode; /* return code value from getInt() */ |
| |
| static Char name[] = "getInitCommand"; |
| |
| assert( file ); |
| assert( fan ); |
| |
| /* |
| * Read the integer value for the fan checking for error return codes. |
| */ |
| returnCode = getInt( file, fan ); |
| if ( returnCode == GET_INT_SUCCESS ) { |
| if ( *fan < MINIMUM_FAN_SIZE ) { |
| errorMessage( "invalid fan specified", REPLACE ); |
| errorMessage( name, PREPEND ); |
| returnCode = GET_INIT_INVALID_FAN; |
| } /* end of if ( *fan < MINIMUM_FAN_SIZE ) */ |
| else { |
| returnCode = GET_INIT_SUCCESS; |
| } /* end of if ( *fan >= MINIMUM_FAN_SIZE ) */ |
| } /* end of if returnCode == SUCCESS ) */ |
| else if ( returnCode == GET_INT_EOI ) { |
| errorMessage( "improper format - early EOI", REPLACE ); |
| errorMessage( name, PREPEND ); |
| returnCode = GET_INIT_EARLY_EOI; |
| } /* end of if ( returnCode == GET_INT_EOI ) */ |
| else if ( returnCode == GET_INT_RANGE_EXCEEDED ) { |
| errorMessage( "invalid fan specified", REPLACE ); |
| errorMessage( name, PREPEND ); |
| returnCode = GET_INIT_INVALID_FAN; |
| } /* end of if ( returnCode == GET_INT_GET_STRING_FAILURE ) */ |
| else if ( returnCode == GET_INT_BAD_CONVERSION ) { |
| errorMessage( "improper format - fan must be an integer", REPLACE ); |
| errorMessage( name, PREPEND ); |
| returnCode = GET_INIT_IO_ERROR; |
| } /* end of if ( returnCode == GET_INT_GET_STRING_FAILURE ) */ |
| |
| return ( returnCode ); |
| } /* end of getInitCommand() */ |
