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/* -----------------------------------------------------------------------------
* ports.i
*
* Guile typemaps for handling ports
* ----------------------------------------------------------------------------- */
%{
#ifndef _POSIX_SOURCE
/* This is needed on Solaris for fdopen(). */
# define _POSIX_SOURCE 199506L
#endif
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
%}
/* This typemap for FILE * accepts
(1) FILE * pointer objects,
(2) Scheme file ports. In this case, it creates a temporary C stream
which reads or writes from a dup'ed file descriptor.
*/
%typemap(in, doc="$NAME is a file port or a FILE * pointer") FILE *
{
if (SWIG_ConvertPtr($input, (void**) &($1), $1_descriptor, 0) != 0) {
if (!(SCM_FPORTP($input))) {
scm_wrong_type_arg("$symname", $argnum, $input);
} else {
int fd;
if (SCM_OUTPUT_PORT_P($input)) {
scm_force_output($input);
}
fd=dup(SCM_FPORT_FDES($input));
if (fd==-1) {
scm_misc_error("$symname", strerror(errno), SCM_EOL);
}
$1=fdopen(fd, SCM_OUTPUT_PORT_P($input) ? (SCM_INPUT_PORT_P($input) ? "r+" : "w") : "r");
if ($1==NULL) {
scm_misc_error("$symname", strerror(errno), SCM_EOL);
}
}
}
}
%typemap(freearg) FILE* {
if ($1) {
fclose($1);
}
}