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/*
* $Id: fstat.c,v 1.2 2005/04/08 05:42:35 baud Exp $
*/
/*
* Copyright (C) 1990-2003 by CERN/IT/PDP/DM
* All rights reserved
*/
#ifndef lint
static char sccsid[] = "@(#)$RCSfile: fstat.c,v $ $Revision: 1.2 $ $Date: 2005/04/08 05:42:35 $ CERN/IT/PDP/DM F. Hemmer, A. Trannoy";
#endif /* not lint */
/* fstat.c Remote File I/O - get file status */
/*
* System remote file I/O definitions
*/
#define RFIO_KERNEL 1
#include "rfio.h"
#include "rfio_rfilefdt.h"
#include <stdlib.h> /* malloc prototype */
/*
* Remote file stat
*/
int DLL_DECL rfio_fstat(s, statbuf)
int s;
struct stat *statbuf;
{
#if (defined(__alpha) && defined(__osf__))
return (rfio_fstat64(s,statbuf));
#else
int status ;
#if defined(IRIX64) || defined(__ia64__) || defined(__x86_64) || defined(__ppc64__)
struct stat64 statb64;
if ((status = rfio_fstat64(s,&statb64)) == 0)
(void) stat64tostat(&statb64, statbuf);
return (status);
#else
char * p ;
char * trp ;
int temp=0 ;
char rfio_buf[BUFSIZ];
int s_index = -1;
/* Avoiding Valgrind error messages about uninitialized data */
memset(rfio_buf, 0, BUFSIZ);
INIT_TRACE("RFIO_TRACE");
TRACE(1, "rfio", "rfio_fstat(%d, %x)", s, statbuf);
/*
* The file is local
*/
if ((s_index = rfio_rfilefdt_findentry(s,FINDRFILE_WITHOUT_SCAN)) == -1) {
TRACE(2, "rfio", "rfio_fstat: using local fstat(%d, %x)", s, statbuf);
status = fstat(s, statbuf);
if ( status < 0 ) serrno = 0;
rfio_errno = 0;
END_TRACE();
return(status);
}
/*
* Checking magic number.
*/
if (rfilefdt[s_index]->magic != RFIO_MAGIC) {
serrno = SEBADVERSION ;
rfio_rfilefdt_freeentry(s_index);
(void) close(s) ;
END_TRACE();
return(-1);
}
/*
* File mark has to be repositionned.
*/
if ( (rfilefdt[s_index]->readissued || rfilefdt[s_index]->preseek) && rfilefdt[s_index]->lseekhow == -1 ) {
rfilefdt[s_index]->lseekhow= SEEK_SET ;
rfilefdt[s_index]->lseekoff= rfilefdt[s_index]->offset ;
}
/*
* Flags on current status are reset.
*/
rfilefdt[s_index]->eof= 0 ;
rfilefdt[s_index]->preseek= 0 ;
rfilefdt[s_index]->nbrecord= 0 ;
rfilefdt[s_index]->readissued= 0 ;
if ( rfilefdt[s_index]->_iobuf.base ) {
rfilefdt[s_index]->_iobuf.count= 0 ;
rfilefdt[s_index]->_iobuf.ptr= iodata(rfilefdt[s_index]) ;
}
/*
* Sending request.
*/
p= rfio_buf ;
marshall_WORD(p, RFIO_MAGIC);
marshall_WORD(p, RQST_FSTAT);
/*
marshall_LONG(p, rfilefdt[s_index]->lseekhow) ;
*/
marshall_LONG(p, rfilefdt[s_index]->lseekoff) ;
marshall_LONG(p, rfilefdt[s_index]->lseekhow) ;
TRACE(2,"rfio","rfio_fstat: sending %d bytes",RQSTSIZE) ;
if (netwrite_timeout(s,rfio_buf,RQSTSIZE,RFIO_CTRL_TIMEOUT) != RQSTSIZE) {
TRACE(2, "rfio", "rfio_fstat: write(): ERROR occured (errno=%d)", errno);
END_TRACE();
return(-1);
}
/*
* Getting data from the network.
*/
for(;;) {
WORD req ;
LONG rcode ;
LONG msgsiz ;
TRACE(2, "rfio", "rfio_fstat: reading %d bytes",rfilefdt[s_index]->_iobuf.hsize) ;
if (netread_timeout(s,rfio_buf,rfilefdt[s_index]->_iobuf.hsize,RFIO_DATA_TIMEOUT) != rfilefdt[s_index]->_iobuf.hsize) {
TRACE(2, "rfio", "rfio_fstat: read(): ERROR occured (errno=%d)", errno);
if ( temp ) (void) free(trp) ;
END_TRACE() ;
return -1 ;
}
p = rfio_buf ;
unmarshall_WORD(p,req) ;
unmarshall_LONG(p,status) ;
unmarshall_LONG(p, rcode) ;
unmarshall_LONG(p,msgsiz) ;
switch(req) {
case RQST_FSTAT:
TRACE(2, "rfio", "rfio_fstat: reading %d bytes",msgsiz);
if (netread_timeout(s,rfio_buf,msgsiz,RFIO_DATA_TIMEOUT) != msgsiz ) {
TRACE(2,"rfio","rfio_fstat: read(): ERROR occured (errno=%d)",errno) ;
if ( temp ) (void) free(trp) ;
END_TRACE() ;
return -1 ;
}
p = rfio_buf ;
unmarshall_WORD(p,statbuf->st_dev);
unmarshall_LONG(p,statbuf->st_ino);
unmarshall_WORD(p,statbuf->st_mode);
unmarshall_WORD(p,statbuf->st_nlink);
unmarshall_WORD(p,statbuf->st_uid);
unmarshall_WORD(p,statbuf->st_gid);
unmarshall_LONG(p,statbuf->st_size);
unmarshall_LONG(p,statbuf->st_atime);
unmarshall_LONG(p,statbuf->st_mtime);
unmarshall_LONG(p,statbuf->st_ctime);
rfio_errno= rcode ;
if ( temp ) (void) free(trp) ;
TRACE(1,"rfio","rfio_fstat: return status %d, rcode %d",status,rcode) ;
END_TRACE() ;
return status ;
case RQST_READAHEAD:
case RQST_READAHD64:
case RQST_LASTSEEK:
case RQST_PRESEEK:
case RQST_PRESEEK64:
/*
* At this point a temporary buffer may need to be created
* to receive data which is going to be thrown away.
*/
if ( temp == 0 ) {
if ( rfilefdt[s_index]->_iobuf.base==NULL || rfilefdt[s_index]->_iobuf.dsize<msgsiz ) {
temp= 1 ;
TRACE(3,"rfio","rfio_fstat: allocating momentary buffer of size %d",msgsiz) ;
if ( (trp= ( char *) malloc(msgsiz)) == NULL ) {
TRACE(3,"rfio","rfio_fstat: malloc(): ERROR occured (errno=%d)",errno) ;
END_TRACE() ;
return -1 ;
}
}
else
trp= iodata(rfilefdt[s_index]) ;
}
if ( netread_timeout(s,trp,msgsiz,RFIO_DATA_TIMEOUT) != msgsiz ) {
TRACE(2,"rfio","rfio_fstat: read(): ERROR occured (errno=%d)",errno) ;
if ( temp ) (void) free(trp) ;
END_TRACE() ;
return -1 ;
}
break ;
default:
TRACE(1,"rfio","rfio_fstat(): Bad control word received\n") ;
serrno= SEINTERNAL ;
if ( temp ) (void) free(trp) ;
END_TRACE() ;
return -1 ;
}
}
#endif
#endif
}
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