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ntdll: Retrieve mailslot message info from the client side.

This commit is contained in:
Alexandre Julliard 2006-11-03 17:53:04 +01:00
parent 511e0bb671
commit 02fc886302
5 changed files with 21 additions and 28 deletions
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21
dlls/ntdll/file.c
View File

@ -1350,12 +1350,29 @@ NTSTATUS WINAPI NtQueryInformationFile( HANDLE hFile, PIO_STATUS_BLOCK io,
{
info->MaximumMessageSize = reply->max_msgsize;
info->MailslotQuota = 0;
info->NextMessageSize = reply->next_msgsize;
info->MessagesAvailable = reply->msg_count;
info->NextMessageSize = 0;
info->MessagesAvailable = 0;
info->ReadTimeout.QuadPart = reply->read_timeout * -10000;
}
}
SERVER_END_REQ;
if (!io->u.Status)
{
ULONG size = info->MaximumMessageSize ? info->MaximumMessageSize : 0x10000;
char *tmpbuf = RtlAllocateHeap( GetProcessHeap(), 0, size );
if (tmpbuf)
{
int fd, needs_close;
if (!server_get_unix_fd( hFile, FILE_READ_DATA, &fd, &needs_close, NULL ))
{
int res = recv( fd, tmpbuf, size, MSG_PEEK );
info->MessagesAvailable = (res > 0);
info->NextMessageSize = (res >= 0) ? res : MAILSLOT_NO_MESSAGE;
if (needs_close) close( fd );
}
RtlFreeHeap( GetProcessHeap(), 0, tmpbuf );
}
}
}
break;
case FilePipeLocalInformation:

4
include/wine/server_protocol.h
View File

@ -3666,8 +3666,6 @@ struct set_mailslot_info_reply
struct reply_header __header;
unsigned int max_msgsize;
int read_timeout;
unsigned int msg_count;
unsigned int next_msgsize;
};
#define MAILSLOT_SET_READ_TIMEOUT 1
@ -4406,6 +4404,6 @@ union generic_reply
struct query_symlink_reply query_symlink_reply;
};
#define SERVER_PROTOCOL_VERSION 258
#define SERVER_PROTOCOL_VERSION 259
#endif /* __WINE_WINE_SERVER_PROTOCOL_H */

18
server/mailslot.c
View File

@ -212,16 +212,6 @@ static int mailslot_message_count(struct mailslot *mailslot)
return (poll( &pfd, 1, 0 ) == 1) ? 1 : 0;
}
static int mailslot_next_msg_size( struct mailslot *mailslot )
{
int size, fd;
size = 0;
fd = get_unix_fd( mailslot->fd );
ioctl( fd, FIONREAD, &size );
return size;
}
static int mailslot_get_info( struct fd *fd )
{
struct mailslot *mailslot = get_fd_user( fd );
@ -541,14 +531,6 @@ DECL_HANDLER(set_mailslot_info)
mailslot->read_timeout = req->read_timeout;
reply->max_msgsize = mailslot->max_msgsize;
reply->read_timeout = mailslot->read_timeout;
reply->msg_count = mailslot_message_count(mailslot);
/* get the size of the next message */
if (reply->msg_count)
reply->next_msgsize = mailslot_next_msg_size(mailslot);
else
reply->next_msgsize = MAILSLOT_NO_MESSAGE;
release_object( mailslot );
}
}

2
server/protocol.def
View File

@ -2578,8 +2578,6 @@ enum message_type
@REPLY
unsigned int max_msgsize;
int read_timeout;
unsigned int msg_count;
unsigned int next_msgsize;
@END
#define MAILSLOT_SET_READ_TIMEOUT 1

4
server/trace.c
View File

@ -3186,9 +3186,7 @@ static void dump_set_mailslot_info_request( const struct set_mailslot_info_reque
static void dump_set_mailslot_info_reply( const struct set_mailslot_info_reply *req )
{
fprintf( stderr, " max_msgsize=%08x,", req->max_msgsize );
fprintf( stderr, " read_timeout=%d,", req->read_timeout );
fprintf( stderr, " msg_count=%08x,", req->msg_count );
fprintf( stderr, " next_msgsize=%08x", req->next_msgsize );
fprintf( stderr, " read_timeout=%d", req->read_timeout );
}
static void dump_create_directory_request( const struct create_directory_request *req )