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Diffstat (limited to 'ast/fstcschan.c')
| -rw-r--r-- | ast/fstcschan.c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/ast/fstcschan.c b/ast/fstcschan.c new file mode 100644 index 0000000..9f47469 --- /dev/null +++ b/ast/fstcschan.c @@ -0,0 +1,131 @@ +/* +*+ +* Name: +* fstcschan.c + +* Purpose: +* Define a FORTRAN 77 interface to the AST StcsChan class. + +* Type of Module: +* C source file. + +* Description: +* This file defines FORTRAN 77-callable C functions which provide +* a public FORTRAN 77 interface to the StcsChan class. + +* Routines Defined: +* AST_STCSCHAN +* AST_ISASTCSCHAN + +* Copyright: +* Copyright (C) 2008 Science & Technology Facilities Council. +* All Rights Reserved. + +* Licence: +* This program is free software: you can redistribute it and/or +* modify it under the terms of the GNU Lesser General Public +* License as published by the Free Software Foundation, either +* version 3 of the License, or (at your option) any later +* version. +* +* This program is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +* GNU Lesser General Public License for more details. +* +* You should have received a copy of the GNU Lesser General +* License along with this program. If not, see +* <http://www.gnu.org/licenses/>. + +* Authors: +* DSB: David S. Berry (JAC,UCLan) + +* History: +* 18-DEC-2008 (DSB): +* Original version. +*/ + +/* Define the astFORTRAN77 macro which prevents error messages from + AST C functions from reporting the file and line number where the + error occurred (since these would refer to this file, they would + not be useful). */ +#define astFORTRAN77 + +/* Header files. */ +/* ============= */ +#include "f77.h" /* FORTRAN <-> C interface macros (SUN/209) */ +#include "c2f77.h" /* F77 <-> C support functions/macros */ +#include "error.h" /* Error reporting facilities */ +#include "memory.h" /* Memory handling facilities */ +#include "channel.h" /* Provides wrapper functions */ +#include "stcschan.h" /* C interface to the StcsChan class */ + +#include <stddef.h> + +/* Prototypes for external functions. */ +/* ================================== */ +/* This is the null function defined by the FORTRAN interface in fobject.c. */ +F77_SUBROUTINE(ast_null)( void ); + +/* FORTRAN interface functions. */ +/* ============================ */ +/* These functions implement the remainder of the FORTRAN interface. */ +F77_INTEGER_FUNCTION(ast_stcschan)( void (* SOURCE)(), + void (* SINK)(), + CHARACTER(OPTIONS), + INTEGER(STATUS) + TRAIL(OPTIONS) ) { + GENPTR_CHARACTER(OPTIONS) + F77_INTEGER_TYPE(RESULT); + char *options; + const char *(* source)( void ); + int i; + void (* sink)( const char * ); + + astAt( "AST_STCSCHAN", NULL, 0 ); + astWatchSTATUS( + +/* Set the source and sink function pointers to NULL if a pointer to + the null routine AST_NULL has been supplied. */ + source = (const char *(*)( void )) SOURCE; + if ( source == (const char *(*)( void )) F77_EXTERNAL_NAME(ast_null) ) { + source = NULL; + } + sink = (void (*)( const char * )) SINK; + if ( sink == (void (*)( const char * )) F77_EXTERNAL_NAME(ast_null) ) { + sink = NULL; + } + options = astString( OPTIONS, OPTIONS_length ); + +/* Truncate the options string to exlucde any trailing spaces. */ + astChrTrunc( options ); + +/* Change ',' to '\n' (see AST_SET in fobject.c for why). */ + if ( astOK ) { + for ( i = 0; options[ i ]; i++ ) { + if ( options[ i ] == ',' ) options[ i ] = '\n'; + } + } + RESULT = astP2I( astStcsChanFor( source, astSourceWrap, sink, astSinkWrap, + "%s", options ) ); + astFree( options ); + ) + return RESULT; +} + +F77_LOGICAL_FUNCTION(ast_isastcschan)( INTEGER(THIS), + INTEGER(STATUS) ) { + GENPTR_INTEGER(THIS) + F77_LOGICAL_TYPE(RESULT); + + astAt( "AST_ISASTCSCHAN", NULL, 0 ); + astWatchSTATUS( + RESULT = astIsAStcsChan( astI2P( *THIS ) ) ? F77_TRUE : F77_FALSE; + ) + return RESULT; +} + + + + + |