sue.c File Reference

#include "f2c.h"
#include "fio.h"

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Functions
int	c_sue (cilist *a)
integer	s_rsue (cilist *a)
integer	s_wsue (cilist *a)
integer	e_wsue (Void)
integer	e_rsue (Void)
Variables
uiolen	f__reclen
OFF_T	f__recloc

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Function Documentation

int c_sue

(

cilist *

a

)

Definition at line 13 of file sue.c.

References a, err, f__cf, f__curunit, f__elist, f__external, f__formatted, f__sequential, f__units, fk_open(), MXUNIT, NULL, SEQ, unit::ufd, unit::ufmt, UNF, and unit::useek.

Referenced by s_rsue(), and s_wsue().

{
        f__external=f__sequential=1;
        f__formatted=0;
        f__curunit = &f__units[a->ciunit];
        if(a->ciunit >= MXUNIT || a->ciunit < 0)
                err(a->cierr,101,"startio");
        f__elist=a;
        if(f__curunit->ufd==NULL && fk_open(SEQ,UNF,a->ciunit))
                err(a->cierr,114,"sue");
        f__cf=f__curunit->ufd;
        if(f__curunit->ufmt) err(a->cierr,103,"sue")
        if(!f__curunit->useek) err(a->cierr,103,"sue")
        return(0);
}

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integer e_rsue

(

Void

)

Definition at line 83 of file sue.c.

References f__cf, f__recpos, FSEEK, OFF_T, and SEEK_CUR.

Referenced by bfrdr().

{
        FSEEK(f__cf,(OFF_T)(f__reclen-f__recpos+sizeof(uiolen)),SEEK_CUR);
        return(0);
}

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integer e_wsue

(

Void

)

Definition at line 70 of file sue.c.

References cilist::cierr, err, errno, f__cf, f__elist, FSEEK, FTELL, OFF_T, and SEEK_SET.

Referenced by writef4().

{       OFF_T loc;
        fwrite((char *)&f__reclen,sizeof(uiolen),1,f__cf);
#ifdef ALWAYS_FLUSH
        if (fflush(f__cf))
                err(f__elist->cierr, errno, "write end");
#endif
        loc=FTELL(f__cf);
        FSEEK(f__cf,f__recloc,SEEK_SET);
        fwrite((char *)&f__reclen,sizeof(uiolen),1,f__cf);
        FSEEK(f__cf,loc,SEEK_SET);
        return(0);
}

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integer s_rsue

(

cilist *

a

)

Definition at line 32 of file sue.c.

References a, c_sue(), err, errno, f__cf, f__curunit, f__init, f__nowreading(), f__reading, f__recpos, f_init(), n, unit::uend, and unit::uwrt.

Referenced by bfrdr().

{
        int n;
        if(!f__init) f_init();
        f__reading=1;
        if(n=c_sue(a)) return(n);
        f__recpos=0;
        if(f__curunit->uwrt && f__nowreading(f__curunit))
                err(a->cierr, errno, "read start");
        if(fread((char *)&f__reclen,sizeof(uiolen),1,f__cf)
                != 1)
        {       if(feof(f__cf))
                {       f__curunit->uend = 1;
                        err(a->ciend, EOF, "start");
                }
                clearerr(f__cf);
                err(a->cierr, errno, "start");
        }
        return(0);
}

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integer s_wsue

(

cilist *

a

)

Definition at line 56 of file sue.c.

References a, c_sue(), err, errno, f__cf, f__curunit, f__init, f__nowwriting(), f__reading, f_init(), FSEEK, FTELL, n, OFF_T, SEEK_CUR, and unit::uwrt.

Referenced by writef4().

{
        int n;
        if(!f__init) f_init();
        if(n=c_sue(a)) return(n);
        f__reading=0;
        f__reclen=0;
        if(f__curunit->uwrt != 1 && f__nowwriting(f__curunit))
                err(a->cierr, errno, "write start");
        f__recloc=FTELL(f__cf);
        FSEEK(f__cf,(OFF_T)sizeof(uiolen),SEEK_CUR);
        return(0);
}

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Variable Documentation

uiolen f__reclen

Definition at line 6 of file uio.c.

OFF_T f__recloc

Definition at line 7 of file sue.c.

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