use optimal block size.

[unix-history] / usr / src / old / as.vax / as.h

diff --git a/usr/src/old/as.vax/as.h b/usr/src/old/as.vax/as.h
index 72a58a6..eb10751 100644 (file)
--- a/usr/src/old/as.vax/as.h
+++ b/usr/src/old/as.vax/as.h
@@ -1,6 +1,6 @@
 /*
  *     Copyright (c) 1982 Regents of the University of California
 /*
  *     Copyright (c) 1982 Regents of the University of California

- *     @(#)as.h 4.21 %G%
+ *     @(#)as.h 4.22 %G%

  */
 #define        reg     register
 
  */
 #define        reg     register
 


@@ -465,7 +465,7 @@ struct      biobuf {
        short   b_nleft;                /* Number free spaces left in b_buf */
 /* Initialize to be less than BUFSIZ initially, to boundary align in file */
        char    *b_ptr;                 /* Next place to stuff characters */
        short   b_nleft;                /* Number free spaces left in b_buf */
 /* Initialize to be less than BUFSIZ initially, to boundary align in file */
        char    *b_ptr;                 /* Next place to stuff characters */

-       char    b_buf[BUFSIZ];          /* The buffer itself */
+       char    *b_buf;                 /* Pointer to the buffer */

        off_t   b_off;                  /* Current file offset */
        struct  biobuf *b_link;         /* Link in chain for bflush() */
 };
        off_t   b_off;                  /* Current file offset */
        struct  biobuf *b_link;         /* Link in chain for bflush() */
 };


@@ -475,6 +475,7 @@ struct      biobuf {
 
        extern  BFILE   *biobufs;       /* head of the block I/O buffer chain */
        extern  int     biofd;          /* file descriptor for block I/O file */
 
        extern  BFILE   *biobufs;       /* head of the block I/O buffer chain */
        extern  int     biofd;          /* file descriptor for block I/O file */

+       extern  int     biobufsize;     /* optimal block size for I/O */

        extern  off_t   boffset;        /* physical position in logical file */
 
        /*
        extern  off_t   boffset;        /* physical position in logical file */
 
        /*