sin/samba-mirror
1
0
Fork 0
mirror of https://github.com/samba-team/samba.git synced 2025-02-03 13:47:25 +03:00
Code

r15183: Hoist the critical sizes initialiser into a header so that modules

Browse Source 
can have standard access to critical sizes. Add a convenience function
to determine whether two critical sizes differ.
(This used to be commit 7ced96d2d348701734cc4cdf3f8899dbce8cd0f7)
This commit is contained in:
James Peach 2006-04-23 23:40:53 +00:00 committed by Gerald (Jerry) Carter
parent e54c6cbc41
commit 073587abac
2 changed files with 48 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
source4/ntvfs/ntvfs.h
View File

@ -266,6 +266,17 @@ struct ntvfs_critical_sizes {
int sizeof_ntvfs_request;
};
#define NTVFS_CURRENT_CRITICAL_SIZES(c) \
struct ntvfs_critical_sizes c = { \
.interface_version = NTVFS_INTERFACE_VERSION, \
.sizeof_ntvfs_critical_sizes = sizeof(struct ntvfs_critical_sizes), \
.sizeof_ntvfs_context = sizeof(struct ntvfs_context), \
.sizeof_ntvfs_module_context = sizeof(struct ntvfs_module_context), \
.sizeof_ntvfs_ops = sizeof(struct ntvfs_ops), \
.sizeof_ntvfs_async_state = sizeof(struct ntvfs_async_state), \
.sizeof_ntvfs_request = sizeof(struct ntvfs_request), \
}
struct messaging_context;
#include "librpc/gen_ndr/security.h"
#include "librpc/gen_ndr/notify.h"

46
source4/ntvfs/ntvfs_base.c
View File

@ -98,21 +98,49 @@ _PUBLIC_ const struct ntvfs_ops *ntvfs_backend_byname(const char *name, enum ntv
This can be used by backends to either detect compilation errors, or provide
multiple implementations for different smbd compilation options in one module
*/
static const struct ntvfs_critical_sizes critical_sizes = {
.interface_version = NTVFS_INTERFACE_VERSION,
.sizeof_ntvfs_critical_sizes = sizeof(struct ntvfs_critical_sizes),
.sizeof_ntvfs_context = sizeof(struct ntvfs_context),
.sizeof_ntvfs_module_context = sizeof(struct ntvfs_module_context),
.sizeof_ntvfs_ops = sizeof(struct ntvfs_ops),
.sizeof_ntvfs_async_state = sizeof(struct ntvfs_async_state),
.sizeof_ntvfs_request = sizeof(struct ntvfs_request),
};
static const NTVFS_CURRENT_CRITICAL_SIZES(critical_sizes);
_PUBLIC_ const struct ntvfs_critical_sizes *ntvfs_interface_version(void)
{
return &critical_sizes;
}
_PUBLIC_ BOOL ntvfs_interface_differs(const struct ntvfs_critical_sizes *const iface)
{
/* The comparison would be easier with memcmp, but compiler-interset
* alignment padding is not guaranteed to be zeroed.
*/
#define FIELD_DIFFERS(field) (iface->field != critical_sizes.field)
if (FIELD_DIFFERS(interface_version))
return True;
if (FIELD_DIFFERS(sizeof_ntvfs_critical_sizes))
return True;
if (FIELD_DIFFERS(sizeof_ntvfs_context))
return True;
if (FIELD_DIFFERS(sizeof_ntvfs_module_context))
return True;
if (FIELD_DIFFERS(sizeof_ntvfs_ops))
return True;
if (FIELD_DIFFERS(sizeof_ntvfs_async_state))
return True;
if (FIELD_DIFFERS(sizeof_ntvfs_request))
return True;
/* Versions match. */
return False;
#undef FIELD_DIFFERS
}
/*
initialise a connection structure to point at a NTVFS backend