io.c
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	#include <Python.h>
	#include <numpy/arrayobject.h>
	#include "structmember.h"
	#include <mpi.h>

	#include "allvars.h"
	#include "proto.h"
	#include "ptreelib.h"



	/*! This catches I/O errors occuring for my_fwrite(). In this case we
	* better stop.
	*/
	size_t my_fwrite(Tree self,void ptr, size_t size, size_t nmemb, FILE * stream)
	{
	size_t nwritten;

	if((nwritten = fwrite(ptr, size, nmemb, stream)) != nmemb)
	{
	printf("I/O error (fwrite) on task=%d has occured: %s\n", self->ThisTask, strerror(errno));
	fflush(stdout);
	endrun(self,777);
	}
	return nwritten;
	}


	/*! This catches I/O errors occuring for fread(). In this case we
	* better stop.
	*/
	size_t my_fread(Tree self,void ptr, size_t size, size_t nmemb, FILE * stream)
	{
	size_t nread;

	if((nread = fread(ptr, size, nmemb, stream)) != nmemb)
	{
	printf("I/O error (fread) on task=%d has occured: %s\n", self->ThisTask, strerror(errno));
	fflush(stdout);
	endrun(self,778);
	}
	return nread;
	}