* file descriptor and process.
*/
-typedef struct
+typedef struct file_fd_struct
{
- uint16 ref_count;
- uint16 uid_cache_count;
- uid_t uid_users_cache[10];
- uint32 dev;
- uint32 inode;
- int fd;
- int fd_readonly;
- int fd_writeonly;
- int real_open_flags;
+ struct file_fd_struct *next, *prev;
+ uint16 ref_count;
+ uint16 uid_cache_count;
+ uid_t uid_users_cache[10];
+ uint32 dev;
+ uint32 inode;
+ int fd;
+ int fdnum;
+ int fd_readonly;
+ int fd_writeonly;
+ int real_open_flags;
} file_fd_struct;
/*
GID_T *groups;
};
-typedef struct
+typedef struct files_struct
{
+ struct files_struct *next, *prev;
int fnum;
connection_struct *conn;
file_fd_struct *fd_ptr;
} def;
};
+struct bitmap {
+ uint32 *b;
+ int n;
+};
#define FLAG_BASIC 1 /* fundamental options */
#define FLAG_HIDE 2 /* options that should be hidden in SWAT */
--- /dev/null
+/*
+ Unix SMB/Netbios implementation.
+ Version 1.9.
+ simple bitmap functions
+ Copyright (C) Andrew Tridgell 1992-1998
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+
+/* these functions provide a simple way to allocate integers from a
+ pool without repitition */
+
+
+/****************************************************************************
+allocate a bitmap of the specified size
+****************************************************************************/
+struct bitmap *bitmap_allocate(int n)
+{
+ struct bitmap *bm;
+
+ bm = (struct bitmap *)malloc(sizeof(*bm));
+ bm->n = n;
+
+ if (!bm) return NULL;
+
+ bm->b = (uint32 *)malloc(sizeof(bm->b[0])*(n+31)/32);
+ if (!bm->b) {
+ free(bm);
+ return NULL;
+ }
+
+ memset(bm->b, 0, sizeof(bm->b[0])*bm->n);
+
+ return bm;
+}
+
+/****************************************************************************
+free a bitmap structure
+****************************************************************************/
+void bitmap_free(struct bitmap *bm)
+{
+ free(bm->b);
+ bm->b = NULL;
+ free(bm);
+}
+
+
+/****************************************************************************
+set a bit in a bitmap
+****************************************************************************/
+BOOL bitmap_set(struct bitmap *bm, unsigned i)
+{
+ if (i >= bm->n) return False;
+ bm->b[i/32] |= (1<<(i%32));
+ return True;
+}
+
+/****************************************************************************
+query a bit in a bitmap
+****************************************************************************/
+BOOL bitmap_query(struct bitmap *bm, unsigned i)
+{
+ if (i >= bm->n) return False;
+ if (bm->b[i/32] & (1<<(i%32))) {
+ return True;
+ }
+ return False;
+}
+
+/****************************************************************************
+find a zero bit in a bitmap starting at the specified offset, with
+wraparound
+****************************************************************************/
+int bitmap_find(struct bitmap *bm, unsigned ofs)
+{
+ int i, j;
+
+ if (ofs > bm->n) ofs = 0;
+
+ i = ofs;
+ while (i < bm->n) {
+ if (~(bm->b[i/32])) {
+ j = i;
+ do {
+ if (!bitmap_query(bm, j)) return j;
+ j++;
+ } while (j & 31 && j < bm->n);
+ }
+ i += 32;
+ i &= ~31;
+ }
+
+ i = 0;
+ while (i < ofs) {
+ if (~(bm->b[i/32])) {
+ j = i;
+ do {
+ if (!bitmap_query(bm, j)) return j;
+ j++;
+ } while (j & 31 && j < bm->n);
+ }
+ i += 32;
+ i &= ~31;
+ }
+
+ return -1;
+}
/*******************************************************************
Del the share mode of a file.
********************************************************************/
-
void del_share_mode(int token, files_struct *fsp)
{
share_ops->del_entry(token, fsp);
/*******************************************************************
Set the share mode of a file. Return False on fail, True on success.
********************************************************************/
-
BOOL set_share_mode(int token, files_struct *fsp, uint16 port, uint16 op_type)
{
return share_ops->set_entry(token, fsp, port, op_type);
{
connection_struct *conn = fsp->conn;
- file_free(fsp);
+ fsp->reserved = False;
fsp->open = False;
fsp->is_directory = False;
void close_directory(files_struct *fsp)
{
+ /* TODO - walk the list of pending
+ change notify requests and free
+ any pertaining to this fsp. */
- /* TODO - walk the list of pending
- change notify requests and free
- any pertaining to this fsp. */
+ remove_pending_change_notify_requests_by_fid(fsp);
- remove_pending_change_notify_requests_by_fid(fsp);
-
- /*
- * Do the code common to files and directories.
- */
- close_filestruct(fsp);
-
- if (fsp->fsp_name)
- string_free(&fsp->fsp_name);
-
- file_free(fsp);
+ /*
+ * Do the code common to files and directories.
+ */
+ close_filestruct(fsp);
+
+ if (fsp->fsp_name)
+ string_free(&fsp->fsp_name);
+
+ file_free(fsp);
}
/****************************************************************************
git.samba.org / nivanova / samba-autobuild / .git / commitdiff