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thunk.h revision 1.49
      1 /* $NetBSD: thunk.h,v 1.49 2011/12/30 11:32:57 reinoud Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2011 Jared D. McNeill <jmcneill (at) invisible.ca>
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef _ARCH_USERMODE_INCLUDE_THUNK_H
     30 #define _ARCH_USERMODE_INCLUDE_THUNK_H
     31 
     32 #include <sys/types.h>
     33 #include <sys/time.h>
     34 #include <sys/stat.h>
     35 #include <sys/fcntl.h>
     36 #include <sys/ucontext.h>
     37 #include <sys/signal.h>
     38 
     39 struct thunk_timeval {
     40 	int64_t tv_sec;
     41 	int32_t tv_usec;
     42 };
     43 
     44 struct thunk_itimerval {
     45 	struct thunk_timeval it_interval;
     46 	struct thunk_timeval it_value;
     47 };
     48 
     49 struct thunk_termios {
     50 	uint32_t c_iflag;
     51 	uint32_t c_oflag;
     52 	uint32_t c_cflag;
     53 	uint32_t c_lflag;
     54 	uint8_t c_cc[20];
     55 	int32_t c_ispeed;
     56 	int32_t c_ospeed;
     57 };
     58 
     59 #define THUNK_MAP_ANON		0x0001
     60 #define THUNK_MAP_FIXED		0x0002
     61 #define THUNK_MAP_FILE		0x0004
     62 #define THUNK_MAP_SHARED	0x0010
     63 #define THUNK_MAP_PRIVATE	0x0020
     64 #define THUNK_MAP_NOSYSCALLS	0x0040
     65 
     66 #define THUNK_PROT_NONE		0x00
     67 #define THUNK_PROT_READ		0x01
     68 #define THUNK_PROT_WRITE	0x02
     69 #define THUNK_PROT_EXEC		0x04
     70 
     71 struct aiocb;
     72 
     73 void	dprintf_debug(const char *fmt, ...) __attribute__((__format__(__printf__, 1, 2)));
     74 
     75 int	thunk_setitimer(int, const struct thunk_itimerval *, struct thunk_itimerval *);
     76 int	thunk_gettimeofday(struct thunk_timeval *, void *);
     77 unsigned int thunk_getcounter(void);
     78 long	thunk_clock_getres_monotonic(void);
     79 int	thunk_usleep(useconds_t);
     80 
     81 timer_t	thunk_timer_attach(void);
     82 int	thunk_timer_start(timer_t, int);
     83 int	thunk_timer_getoverrun(timer_t);
     84 
     85 void	thunk_exit(int);
     86 void	thunk_abort(void);
     87 
     88 int	thunk_geterrno(void);
     89 void	thunk_seterrno(int err);
     90 
     91 int	thunk_getcontext(ucontext_t *);
     92 int	thunk_setcontext(const ucontext_t *);
     93 void	thunk_makecontext(ucontext_t *ucp, void (*func)(void),
     94 		int nargs, void *arg1, void *arg2, void *arg3);
     95 int	thunk_swapcontext(ucontext_t *, ucontext_t *);
     96 
     97 int	thunk_tcgetattr(int, struct thunk_termios *);
     98 int	thunk_tcsetattr(int, int, const struct thunk_termios *);
     99 
    100 int	thunk_set_stdin_sigio(int);
    101 int	thunk_pollchar(void);
    102 int	thunk_getchar(void);
    103 void	thunk_putchar(int);
    104 
    105 int	thunk_execv(const char *, char * const []);
    106 
    107 int	thunk_open(const char *, int, mode_t);
    108 int	thunk_fstat_getsize(int, ssize_t *, ssize_t *);
    109 ssize_t	thunk_pread(int, void *, size_t, off_t);
    110 ssize_t	thunk_pwrite(int, const void *, size_t, off_t);
    111 ssize_t	thunk_read(int, void *, size_t);
    112 ssize_t	thunk_write(int, const void *, size_t);
    113 int	thunk_fsync(int);
    114 int	thunk_mkstemp(char *);
    115 int	thunk_unlink(const char *);
    116 pid_t	thunk_getpid(void);
    117 
    118 int	thunk_sigaction(int, const struct sigaction *, struct sigaction *);
    119 int	thunk_sigaltstack(const stack_t *, stack_t *);
    120 void	thunk_signal(int, void (*)(int));
    121 int	thunk_sigblock(int);
    122 int	thunk_sigunblock(int);
    123 int	thunk_sigemptyset(sigset_t *sa_mask);
    124 void	thunk_sigaddset(sigset_t *sa_mask, int sig);
    125 int	thunk_sigprocmask(int how, const sigset_t * set, sigset_t *oset);
    126 int	thunk_atexit(void (*function)(void));
    127 
    128 int	thunk_aio_read(struct aiocb *);
    129 int	thunk_aio_write(struct aiocb *);
    130 int	thunk_aio_error(const struct aiocb *);
    131 int	thunk_aio_return(struct aiocb *);
    132 
    133 void *	thunk_malloc(size_t len);
    134 void 	thunk_free(void *addr);
    135 void *	thunk_sbrk(intptr_t len);
    136 void *	thunk_mmap(void *addr, size_t len, int prot, int flags, int fd, off_t offset);
    137 int	thunk_munmap(void *addr, size_t len);
    138 int	thunk_mprotect(void *addr, size_t len, int prot);
    139 int	thunk_posix_memalign(void **, size_t, size_t);
    140 
    141 int	thunk_idle(void);
    142 
    143 char *	thunk_getenv(const char *);
    144 vaddr_t	thunk_get_vm_min_address(void);
    145 
    146 int	thunk_getcpuinfo(char *, int *);
    147 
    148 int	thunk_getmachine(char *, size_t, char *, size_t);
    149 
    150 int	thunk_setown(int);
    151 
    152 int	thunk_open_tap(const char *);
    153 int	thunk_pollin_tap(int, int);
    154 int	thunk_pollout_tap(int, int);
    155 
    156 typedef struct {
    157 	unsigned int		sample_rate;
    158 	unsigned int		precision;
    159 	unsigned int		validbits;
    160 	unsigned int		channels;
    161 } thunk_audio_config_t;
    162 
    163 int	thunk_audio_open(const char *);
    164 int	thunk_audio_close(int);
    165 int	thunk_audio_drain(int);
    166 int	thunk_audio_config(int, const thunk_audio_config_t *,
    167 			   const thunk_audio_config_t *);
    168 int	thunk_audio_pollout(int);
    169 int	thunk_audio_pollin(int);
    170 int	thunk_audio_write(int, const void *, size_t);
    171 int	thunk_audio_read(int, void *, size_t);
    172 
    173 typedef enum {
    174 	/* client -> server */
    175 	THUNK_RFB_SET_PIXEL_FORMAT = 0,
    176 	THUNK_RFB_SET_ENCODINGS = 2,
    177 	THUNK_RFB_FRAMEBUFFER_UPDATE_REQUEST = 3,
    178 	THUNK_RFB_KEY_EVENT = 4,
    179 	THUNK_RFB_POINTER_EVENT = 5,
    180 	THUNK_RFB_CLIENT_CUT_TEXT = 6,
    181 } thunk_rfb_message_t;
    182 
    183 typedef struct {
    184 	thunk_rfb_message_t	message_type;
    185 	union {
    186 		struct {
    187 			uint8_t		down_flag;
    188 			uint32_t	keysym;
    189 		} key_event;
    190 	} data;
    191 } thunk_rfb_event_t;
    192 
    193 
    194 typedef struct {
    195 	uint8_t			type;
    196 	uint16_t		x, y, w, h;
    197 	uint32_t		colour;		/* for RRE clear */
    198 } thunk_rfb_update_t;
    199 #define THUNK_RFB_TYPE_UPDATE	0
    200 #define THUNK_RFB_TYPE_COPYRECT	1
    201 #define THUNK_RFB_TYPE_RRE	2		/* rectangle fill */
    202 
    203 #define THUNK_RFB_QUEUELEN	128
    204 
    205 typedef struct {
    206 	int			sockfd;
    207 	int			clientfd;
    208 	thunk_rfb_event_t	event;
    209 
    210 	bool			connected;
    211 
    212 	uint16_t		width;
    213 	uint16_t		height;
    214 	uint8_t			depth;
    215 	char			name[64];
    216 	uint8_t			*framebuf;
    217 
    218 	unsigned int		nupdates;
    219 	unsigned int		first_mergable;
    220 	thunk_rfb_update_t	update[THUNK_RFB_QUEUELEN];
    221 } thunk_rfb_t;
    222 
    223 int	thunk_rfb_open(thunk_rfb_t *, uint16_t);
    224 int	thunk_rfb_poll(thunk_rfb_t *, thunk_rfb_event_t *);
    225 void	thunk_rfb_update(thunk_rfb_t *, int, int, int, int);
    226 
    227 #endif /* !_ARCH_USERMODE_INCLUDE_THUNK_H */
    228