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Diffstat (limited to 'libXfont/src/fc/fsio.h')
| -rw-r--r-- | libXfont/src/fc/fsio.h | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/libXfont/src/fc/fsio.h b/libXfont/src/fc/fsio.h new file mode 100644 index 000000000..1454b44bc --- /dev/null +++ b/libXfont/src/fc/fsio.h @@ -0,0 +1,180 @@ +/* $Xorg: fsio.h,v 1.3 2000/08/17 19:46:36 cpqbld Exp $ */ +/* + * Copyright 1990 Network Computing Devices + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of Network Computing Devices not be + * used in advertising or publicity pertaining to distribution of the + * software without specific, written prior permission. Network Computing + * Devices makes no representations about the suitability of this software + * for any purpose. It is provided "as is" without express or implied + * warranty. + * + * NETWORK COMPUTING DEVICES DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, + * IN NO EVENT SHALL NETWORK COMPUTING DEVICES BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM + * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE + * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE + * OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Dave Lemke, Network Computing Devices, Inc + */ +/* $XFree86: xc/lib/font/fc/fsio.h,v 1.5 1999/12/30 02:39:06 robin Exp $ */ + +#ifndef _FSIO_H_ +#define _FSIO_H_ + +#undef DEBUG +#define REQUEST_LOG_SIZE 100 + +typedef struct _fs_fpe_alternate { + char *name; + Bool subset; +} FSFpeAltRec, *FSFpeAltPtr; + + +/* Per client access contexts */ +typedef struct _fs_client_data { + pointer client; + struct _fs_client_data *next; + XID acid; + int auth_generation; +} FSClientRec, *FSClientPtr; + +#define FS_RECONNECT_POLL 1000 +#define FS_RECONNECT_WAIT 5000 +#define FS_GIVEUP_WAIT 20000 +#define FS_REQUEST_TIMEOUT 20000 +#define FS_OPEN_TIMEOUT 30000 +#define FS_REOPEN_TIMEOUT 10000 +#define FS_FLUSH_POLL 1000 + +typedef struct _fs_buf { + char *buf; /* data */ + long size; /* sizeof data */ + long insert; /* where to insert new data */ + long remove; /* where to remove old data */ +} FSBufRec, *FSBufPtr; + +#define FS_BUF_INC 1024 +#define FS_BUF_MAX 32768 + +#define FS_PENDING_WRITE 0x01 /* some write data is queued */ +#define FS_BROKEN_WRITE 0x02 /* writes are broken */ +#define FS_BROKEN_CONNECTION 0x04 /* connection is broken */ +#define FS_PENDING_REPLY 0x08 /* waiting for a reply */ +#define FS_GIVE_UP 0x10 /* font server declared useless */ +#define FS_COMPLETE_REPLY 0x20 /* complete reply ready */ +#define FS_RECONNECTING 0x40 + +#define FS_CONN_UNCONNECTED 0 +#define FS_CONN_CONNECTING 1 +#define FS_CONN_CONNECTED 2 +#define FS_CONN_SENT_PREFIX 3 +#define FS_CONN_RECV_INIT 4 +#define FS_CONN_SENT_CAT 5 +#define FS_CONN_RUNNING 6 + +/* FS specific font FontPathElement data */ +typedef struct _fs_fpe_data { + FSFpePtr next; /* list of all active fs fpes */ + int fs_fd; /* < 0 when not running */ + int fs_conn_state; /* connection state */ + int current_seq; + char *servername; + Bool has_catalogues; + + int generation; + int numAlts; + int alternate; /* which alternate is in use +1 */ + int fsMajorVersion; /* font server major version number */ + FSFpeAltPtr alts; + + FSClientPtr clients; + XID curacid; +#ifdef DEBUG + int reqindex; + struct { + int opcode; + int sequence; + } reqbuffer[REQUEST_LOG_SIZE]; +#endif + FSBufRec outBuf; /* request queue */ + FSBufRec inBuf; /* reply queue */ + long inNeed; /* amount needed for reply */ + + CARD32 blockState; + CARD32 blockedReplyTime; /* time to abort blocked read */ + CARD32 brokenWriteTime; /* time to retry broken write */ + CARD32 blockedConnectTime; /* time to abort blocked connect */ + CARD32 brokenConnectionTime; /* time to retry broken connection */ + + FSBlockDataPtr blockedRequests; + + struct _XtransConnInfo *trans_conn; /* transport connection object */ +} FSFpeRec; + +#define fs_outspace(conn) ((conn)->outBuf.size - (conn)->outBuf.insert) +#define fs_outqueued(conn) ((conn)->outBuf.insert - (conn)->outBuf.remove) +#define fs_inqueued(conn) ((conn)->inBuf.insert - (conn)->inBuf.remove) +#define fs_needsflush(conn) (fs_outqueued(conn) != 0) +#define fs_needsfill(conn) (fs_inqueued(conn) < (conn)->inNeed) +#define fs_needsconnect(conn) ((conn)->fs_fd < 0) +#define fs_data_read(conn) ((conn)->inBuf.insert - (conn)->inBuf.remove) + +#define FSIO_READY 1 +#define FSIO_BLOCK 0 +#define FSIO_ERROR -1 + +extern Bool _fs_reopen_server ( FSFpePtr conn ); +extern int _fs_write ( FSFpePtr conn, char *data, long size ); +extern int _fs_write_pad ( FSFpePtr conn, char *data, long len ); +extern int _fs_wait_for_readable ( FSFpePtr conn, int ms ); +extern long _fs_pad_length (long len); + +extern void _fs_connection_died ( FSFpePtr conn ); + +extern int _fs_flush (FSFpePtr conn); +extern void _fs_mark_block (FSFpePtr conn, CARD32 mask); +extern void _fs_unmark_block (FSFpePtr conn, CARD32 mask); +extern void _fs_done_read (FSFpePtr conn, long size); +extern void _fs_io_reinit (FSFpePtr conn); +extern int _fs_start_read (FSFpePtr conn, long size, char **buf); +extern Bool _fs_io_init (FSFpePtr conn); +extern void _fs_io_fini (FSFpePtr conn); +extern int _fs_poll_connect (XtransConnInfo trans_conn, int timeout); +extern XtransConnInfo _fs_connect(char *servername, int *ret); + +/* check for both EAGAIN and EWOULDBLOCK, because some supposedly POSIX + * systems are broken and return EWOULDBLOCK when they should return EAGAIN + */ +#ifdef WIN32 +#define ETEST() (WSAGetLastError() == WSAEWOULDBLOCK) +#else +#if defined(EAGAIN) && defined(EWOULDBLOCK) +#define ETEST() (errno == EAGAIN || errno == EWOULDBLOCK) +#else +#ifdef EAGAIN +#define ETEST() (errno == EAGAIN) +#else +#define ETEST() (errno == EWOULDBLOCK) +#endif +#endif +#endif +#ifdef WIN32 +#define ECHECK(err) (WSAGetLastError() == err) +#define ESET(val) WSASetLastError(val) +#else +#ifdef ISC +#define ECHECK(err) ((errno == err) || ETEST()) +#else +#define ECHECK(err) (errno == err) +#endif +#define ESET(val) errno = val +#endif + +#endif /* _FSIO_H_ */ |