mirror of
git://source.winehq.org/git/wine.git
synced 2024-09-15 00:45:18 +00:00
0562539d18
Added set file time server request. Overall clean up of the file handling (DOS device handling is now broken, should be redone).
109 lines
3.1 KiB
C
109 lines
3.1 KiB
C
/*
|
|
* Server-side file mapping management
|
|
*
|
|
* Copyright (C) 1999 Alexandre Julliard
|
|
*/
|
|
|
|
#include <assert.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
#include "winerror.h"
|
|
#include "winnt.h"
|
|
#include "server/thread.h"
|
|
|
|
struct mapping
|
|
{
|
|
struct object obj; /* object header */
|
|
int size_high; /* mapping size */
|
|
int size_low; /* mapping size */
|
|
int protect; /* protection flags */
|
|
struct file *file; /* file mapped */
|
|
};
|
|
|
|
static void mapping_dump( struct object *obj, int verbose );
|
|
static void mapping_destroy( struct object *obj );
|
|
|
|
static const struct object_ops mapping_ops =
|
|
{
|
|
mapping_dump,
|
|
no_add_queue,
|
|
NULL, /* should never get called */
|
|
NULL, /* should never get called */
|
|
NULL, /* should never get called */
|
|
no_read_fd,
|
|
no_write_fd,
|
|
no_flush,
|
|
no_get_file_info,
|
|
mapping_destroy
|
|
};
|
|
|
|
struct object *create_mapping( int size_high, int size_low, int protect,
|
|
int handle, const char *name )
|
|
{
|
|
struct mapping *mapping;
|
|
|
|
if (!(mapping = (struct mapping *)create_named_object( name, &mapping_ops,
|
|
sizeof(*mapping) )))
|
|
return NULL;
|
|
if (GET_ERROR() == ERROR_ALREADY_EXISTS)
|
|
return &mapping->obj; /* Nothing else to do */
|
|
|
|
mapping->size_high = size_high;
|
|
mapping->size_low = size_low;
|
|
mapping->protect = protect;
|
|
if (handle != -1)
|
|
{
|
|
int access = 0;
|
|
if (protect & VPROT_READ) access |= GENERIC_READ;
|
|
if (protect & VPROT_WRITE) access |= GENERIC_WRITE;
|
|
if (!(mapping->file = get_file_obj( current->process, handle, access )))
|
|
{
|
|
release_object( mapping );
|
|
return NULL;
|
|
}
|
|
}
|
|
else mapping->file = NULL;
|
|
return &mapping->obj;
|
|
}
|
|
|
|
int open_mapping( unsigned int access, int inherit, const char *name )
|
|
{
|
|
return open_object( name, &mapping_ops, access, inherit );
|
|
}
|
|
|
|
int get_mapping_info( int handle, struct get_mapping_info_reply *reply )
|
|
{
|
|
struct mapping *mapping;
|
|
int fd;
|
|
|
|
if (!(mapping = (struct mapping *)get_handle_obj( current->process, handle,
|
|
0, &mapping_ops )))
|
|
return -1;
|
|
reply->size_high = mapping->size_high;
|
|
reply->size_low = mapping->size_low;
|
|
reply->protect = mapping->protect;
|
|
if (mapping->file) fd = file_get_mmap_fd( mapping->file );
|
|
else fd = -1;
|
|
release_object( mapping );
|
|
return fd;
|
|
}
|
|
|
|
static void mapping_dump( struct object *obj, int verbose )
|
|
{
|
|
struct mapping *mapping = (struct mapping *)obj;
|
|
assert( obj->ops == &mapping_ops );
|
|
fprintf( stderr, "Mapping size=%08x%08x prot=%08x file=%p name='%s'\n",
|
|
mapping->size_high, mapping->size_low, mapping->protect,
|
|
mapping->file, get_object_name( &mapping->obj ) );
|
|
}
|
|
|
|
static void mapping_destroy( struct object *obj )
|
|
{
|
|
struct mapping *mapping = (struct mapping *)obj;
|
|
assert( obj->ops == &mapping_ops );
|
|
if (mapping->file) release_object( mapping->file );
|
|
free( mapping );
|
|
}
|