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Add a LIST_HEAD to DIR for a queue of telldir positions.

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Also add a location count (used as the magic for telldir)
to DIR.  A future change will also add a mutex/lock.
This commit is contained in:
Daniel Eischen 2000-12-06 03:14:28 +00:00
parent 495c2d2085
commit 9b8551d0a5
1 changed files with 6 additions and 1 deletions
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7
include/dirent.h
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@ -42,6 +42,7 @@
* the getdirentries(2) system call.
*/
#include <sys/dirent.h>
#include <sys/queue.h>
#ifdef _POSIX_SOURCE
typedef void * DIR;
@ -52,6 +53,8 @@ typedef void * DIR;
/* definitions for library routines operating on directories. */
#define DIRBLKSIZ 1024
struct _ddloc;
/* structure describing an open directory. */
typedef struct _dirdesc {
int dd_fd; /* file descriptor associated with directory */
@ -62,6 +65,8 @@ typedef struct _dirdesc {
long dd_seek; /* magic cookie returned by getdirentries */
long dd_rewind; /* magic cookie for rewinding */
int dd_flags; /* flags for readdir */
long dd_loccnt; /* Index of entry for sequential readdir's */
LIST_HEAD(, _ddloc) dd_locq; /* telldir position recording */
} DIR;
#define dirfd(dirp) ((dirp)->dd_fd)
@ -89,7 +94,7 @@ void rewinddir __P((DIR *));
int closedir __P((DIR *));
#ifndef _POSIX_SOURCE
DIR *__opendir2 __P((const char *, int));
long telldir __P((const DIR *));
long telldir __P((DIR *));
void seekdir __P((DIR *, long));
int scandir __P((const char *, struct dirent ***,
int (*)(struct dirent *), int (*)(const void *, const void *)));