[qemu.git] / qemu-common.h

/* Common header file that is included by all of qemu.  */
#ifndef QEMU_COMMON_H
#define QEMU_COMMON_H

#include "config-host.h"

#define QEMU_NORETURN __attribute__ ((__noreturn__))
#ifdef CONFIG_GCC_ATTRIBUTE_WARN_UNUSED_RESULT
#define QEMU_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
#else
#define QEMU_WARN_UNUSED_RESULT
#endif

#define QEMU_BUILD_BUG_ON(x) typedef char __build_bug_on__##__LINE__[(x)?-1:1];
#define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR)

typedef struct QEMUTimer QEMUTimer;
typedef struct QEMUFile QEMUFile;
typedef struct QEMUBH QEMUBH;
typedef struct DeviceState DeviceState;

struct Monitor;
typedef struct Monitor Monitor;

/* we put basic includes here to avoid repeating them in device drivers */
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <stdbool.h>
#include <string.h>
#include <strings.h>
#include <inttypes.h>
#include <limits.h>
#include <time.h>
#include <ctype.h>
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <assert.h>

#ifdef _WIN32
#include "qemu-os-win32.h"
#endif

#ifdef CONFIG_POSIX
#include "qemu-os-posix.h"
#endif

#ifndef O_LARGEFILE
#define O_LARGEFILE 0
#endif
#ifndef O_BINARY
#define O_BINARY 0
#endif
#ifndef MAP_ANONYMOUS
#define MAP_ANONYMOUS MAP_ANON
#endif
#ifndef ENOMEDIUM
#define ENOMEDIUM ENODEV
#endif
#if !defined(ENOTSUP)
#define ENOTSUP 4096
#endif
#ifndef TIME_MAX
#define TIME_MAX LONG_MAX
#endif

#ifndef CONFIG_IOVEC
#define CONFIG_IOVEC
struct iovec {
    void *iov_base;
    size_t iov_len;
};
/*
 * Use the same value as Linux for now.
 */
#define IOV_MAX		1024
#else
#include <sys/uio.h>
#endif

#if defined __GNUC__
# if (__GNUC__ < 4) || \
     defined(__GNUC_MINOR__) && (__GNUC__ == 4) && (__GNUC_MINOR__ < 4)
   /* gcc versions before 4.4.x don't support gnu_printf, so use printf. */
#  define GCC_ATTR __attribute__((__unused__, format(printf, 1, 2)))
#  define GCC_FMT_ATTR(n, m) __attribute__((format(printf, n, m)))
# else
   /* Use gnu_printf when supported (qemu uses standard format strings). */
#  define GCC_ATTR __attribute__((__unused__, format(gnu_printf, 1, 2)))
#  define GCC_FMT_ATTR(n, m) __attribute__((format(gnu_printf, n, m)))
# endif
#else
#define GCC_ATTR /**/
#define GCC_FMT_ATTR(n, m)
#endif

typedef int (*fprintf_function)(FILE *f, const char *fmt, ...)
    GCC_FMT_ATTR(2, 3);

#ifdef _WIN32
#define fsync _commit
#define lseek _lseeki64
int qemu_ftruncate64(int, int64_t);
#define ftruncate qemu_ftruncate64

static inline char *realpath(const char *path, char *resolved_path)
{
    _fullpath(resolved_path, path, _MAX_PATH);
    return resolved_path;
}

#define PRId64 "I64d"
#define PRIx64 "I64x"
#define PRIu64 "I64u"
#define PRIo64 "I64o"
#endif

/* FIXME: Remove NEED_CPU_H.  */
#ifndef NEED_CPU_H

#include <setjmp.h>
#include "osdep.h"
#include "bswap.h"

#else

#include "cpu.h"

#endif /* !defined(NEED_CPU_H) */

/* bottom halves */
typedef void QEMUBHFunc(void *opaque);

void async_context_push(void);
void async_context_pop(void);
int get_async_context_id(void);

QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque);
void qemu_bh_schedule(QEMUBH *bh);
/* Bottom halfs that are scheduled from a bottom half handler are instantly
 * invoked.  This can create an infinite loop if a bottom half handler
 * schedules itself.  qemu_bh_schedule_idle() avoids this infinite loop by
 * ensuring that the bottom half isn't executed until the next main loop
 * iteration.
 */
void qemu_bh_schedule_idle(QEMUBH *bh);
void qemu_bh_cancel(QEMUBH *bh);
void qemu_bh_delete(QEMUBH *bh);
int qemu_bh_poll(void);
void qemu_bh_update_timeout(int *timeout);

void qemu_get_timedate(struct tm *tm, int offset);
int qemu_timedate_diff(struct tm *tm);

/* cutils.c */
void pstrcpy(char *buf, int buf_size, const char *str);
char *pstrcat(char *buf, int buf_size, const char *s);
int strstart(const char *str, const char *val, const char **ptr);
int stristart(const char *str, const char *val, const char **ptr);
int qemu_strnlen(const char *s, int max_len);
time_t mktimegm(struct tm *tm);
int qemu_fls(int i);
int qemu_fdatasync(int fd);
int fcntl_setfl(int fd, int flag);

/*
 * strtosz() suffixes used to specify the default treatment of an
 * argument passed to strtosz() without an explicit suffix.
 * These should be defined using upper case characters in the range
 * A-Z, as strtosz() will use qemu_toupper() on the given argument
 * prior to comparison.
 */
#define STRTOSZ_DEFSUFFIX_TB	'T'
#define STRTOSZ_DEFSUFFIX_GB	'G'
#define STRTOSZ_DEFSUFFIX_MB	'M'
#define STRTOSZ_DEFSUFFIX_KB	'K'
#define STRTOSZ_DEFSUFFIX_B	'B'
int64_t strtosz(const char *nptr, char **end);
int64_t strtosz_suffix(const char *nptr, char **end, const char default_suffix);

/* path.c */
void init_paths(const char *prefix);
const char *path(const char *pathname);

#define qemu_isalnum(c)		isalnum((unsigned char)(c))
#define qemu_isalpha(c)		isalpha((unsigned char)(c))
#define qemu_iscntrl(c)		iscntrl((unsigned char)(c))
#define qemu_isdigit(c)		isdigit((unsigned char)(c))
#define qemu_isgraph(c)		isgraph((unsigned char)(c))
#define qemu_islower(c)		islower((unsigned char)(c))
#define qemu_isprint(c)		isprint((unsigned char)(c))
#define qemu_ispunct(c)		ispunct((unsigned char)(c))
#define qemu_isspace(c)		isspace((unsigned char)(c))
#define qemu_isupper(c)		isupper((unsigned char)(c))
#define qemu_isxdigit(c)	isxdigit((unsigned char)(c))
#define qemu_tolower(c)		tolower((unsigned char)(c))
#define qemu_toupper(c)		toupper((unsigned char)(c))
#define qemu_isascii(c)		isascii((unsigned char)(c))
#define qemu_toascii(c)		toascii((unsigned char)(c))

#ifdef _WIN32
/* ffs() in oslib-win32.c for WIN32, strings.h for the rest of the world */
int ffs(int i);
#endif

void *qemu_oom_check(void *ptr);
void *qemu_malloc(size_t size);
void *qemu_realloc(void *ptr, size_t size);
void *qemu_mallocz(size_t size);
void qemu_free(void *ptr);
char *qemu_strdup(const char *str);
char *qemu_strndup(const char *str, size_t size);

void qemu_mutex_lock_iothread(void);
void qemu_mutex_unlock_iothread(void);

int qemu_open(const char *name, int flags, ...);
ssize_t qemu_write_full(int fd, const void *buf, size_t count)
    QEMU_WARN_UNUSED_RESULT;
void qemu_set_cloexec(int fd);

#ifndef _WIN32
int qemu_add_child_watch(pid_t pid);
int qemu_eventfd(int pipefd[2]);
int qemu_pipe(int pipefd[2]);
#endif

/* Error handling.  */

void QEMU_NORETURN hw_error(const char *fmt, ...) GCC_FMT_ATTR(1, 2);

/* IO callbacks.  */
typedef void IOReadHandler(void *opaque, const uint8_t *buf, int size);
typedef int IOCanReadHandler(void *opaque);
typedef void IOHandler(void *opaque);

void qemu_iohandler_fill(int *pnfds, fd_set *readfds, fd_set *writefds, fd_set *xfds);
void qemu_iohandler_poll(fd_set *readfds, fd_set *writefds, fd_set *xfds, int rc);

struct ParallelIOArg {
    void *buffer;
    int count;
};

typedef int (*DMA_transfer_handler) (void *opaque, int nchan, int pos, int size);

/* A load of opaque types so that device init declarations don't have to
   pull in all the real definitions.  */
typedef struct NICInfo NICInfo;
typedef struct HCIInfo HCIInfo;
typedef struct AudioState AudioState;
typedef struct BlockDriverState BlockDriverState;
typedef struct DriveInfo DriveInfo;
typedef struct DisplayState DisplayState;
typedef struct DisplayChangeListener DisplayChangeListener;
typedef struct DisplaySurface DisplaySurface;
typedef struct DisplayAllocator DisplayAllocator;
typedef struct PixelFormat PixelFormat;
typedef struct TextConsole TextConsole;
typedef TextConsole QEMUConsole;
typedef struct CharDriverState CharDriverState;
typedef struct MACAddr MACAddr;
typedef struct VLANState VLANState;
typedef struct VLANClientState VLANClientState;
typedef struct i2c_bus i2c_bus;
typedef struct i2c_slave i2c_slave;
typedef struct SMBusDevice SMBusDevice;
typedef struct PCIHostState PCIHostState;
typedef struct PCIExpressHost PCIExpressHost;
typedef struct PCIBus PCIBus;
typedef struct PCIDevice PCIDevice;
typedef struct PCIExpressDevice PCIExpressDevice;
typedef struct PCIBridge PCIBridge;
typedef struct PCIEAERMsg PCIEAERMsg;
typedef struct PCIEAERLog PCIEAERLog;
typedef struct PCIEAERErr PCIEAERErr;
typedef struct PCIEPort PCIEPort;
typedef struct PCIESlot PCIESlot;
typedef struct SerialState SerialState;
typedef struct IRQState *qemu_irq;
typedef struct PCMCIACardState PCMCIACardState;
typedef struct MouseTransformInfo MouseTransformInfo;
typedef struct uWireSlave uWireSlave;
typedef struct I2SCodec I2SCodec;
typedef struct SSIBus SSIBus;
typedef struct EventNotifier EventNotifier;
typedef struct VirtIODevice VirtIODevice;

typedef uint64_t pcibus_t;

void cpu_exec_init_all(unsigned long tb_size);

/* CPU save/load.  */
void cpu_save(QEMUFile *f, void *opaque);
int cpu_load(QEMUFile *f, void *opaque, int version_id);

/* Force QEMU to stop what it's doing and service IO */
void qemu_service_io(void);

/* Force QEMU to process pending events */
void qemu_notify_event(void);

/* Unblock cpu */
void qemu_cpu_kick(void *env);
void qemu_cpu_kick_self(void);
int qemu_cpu_is_self(void *env);
bool all_cpu_threads_idle(void);

/* work queue */
struct qemu_work_item {
    struct qemu_work_item *next;
    void (*func)(void *data);
    void *data;
    int done;
};

#ifdef CONFIG_USER_ONLY
#define qemu_init_vcpu(env) do { } while (0)
#else
void qemu_init_vcpu(void *env);
#endif

typedef struct QEMUIOVector {
    struct iovec *iov;
    int niov;
    int nalloc;
    size_t size;
} QEMUIOVector;

void qemu_iovec_init(QEMUIOVector *qiov, int alloc_hint);
void qemu_iovec_init_external(QEMUIOVector *qiov, struct iovec *iov, int niov);
void qemu_iovec_add(QEMUIOVector *qiov, void *base, size_t len);
void qemu_iovec_copy(QEMUIOVector *dst, QEMUIOVector *src, uint64_t skip,
    size_t size);
void qemu_iovec_concat(QEMUIOVector *dst, QEMUIOVector *src, size_t size);
void qemu_iovec_destroy(QEMUIOVector *qiov);
void qemu_iovec_reset(QEMUIOVector *qiov);
void qemu_iovec_to_buffer(QEMUIOVector *qiov, void *buf);
void qemu_iovec_from_buffer(QEMUIOVector *qiov, const void *buf, size_t count);
void qemu_iovec_memset(QEMUIOVector *qiov, int c, size_t count);
void qemu_iovec_memset_skip(QEMUIOVector *qiov, int c, size_t count,
                            size_t skip);

void qemu_progress_init(int enabled, float min_skip);
void qemu_progress_end(void);
void qemu_progress_print(float percent, int max);

#define QEMU_FILE_TYPE_BIOS   0
#define QEMU_FILE_TYPE_KEYMAP 1
char *qemu_find_file(int type, const char *name);

/* OS specific functions */
void os_setup_early_signal_handling(void);
char *os_find_datadir(const char *argv0);
void os_parse_cmd_args(int index, const char *optarg);
void os_pidfile_error(void);

/* Convert a byte between binary and BCD.  */
static inline uint8_t to_bcd(uint8_t val)
{
    return ((val / 10) << 4) | (val % 10);
}

static inline uint8_t from_bcd(uint8_t val)
{
    return ((val >> 4) * 10) + (val & 0x0f);
}

/* compute with 96 bit intermediate result: (a*b)/c */
static inline uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
{
    union {
        uint64_t ll;
        struct {
#ifdef HOST_WORDS_BIGENDIAN
            uint32_t high, low;
#else
            uint32_t low, high;
#endif
        } l;
    } u, res;
    uint64_t rl, rh;

    u.ll = a;
    rl = (uint64_t)u.l.low * (uint64_t)b;
    rh = (uint64_t)u.l.high * (uint64_t)b;
    rh += (rl >> 32);
    res.l.high = rh / c;
    res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
    return res.ll;
}

#include "module.h"

#endif
Commit	Line	Data
faf07963 PB	1	/* Common header file that is included by all of qemu. */
	2	#ifndef QEMU_COMMON_H
	3	#define QEMU_COMMON_H
	4
beb6f0de KW	5	#include "config-host.h"
beb6f0de KW	6
a5e50b26	7	#define QEMU_NORETURN __attribute__ ((__noreturn__))
747bbdf7 BS	8	#ifdef CONFIG_GCC_ATTRIBUTE_WARN_UNUSED_RESULT
	9	#define QEMU_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
	10	#else
	11	#define QEMU_WARN_UNUSED_RESULT
	12	#endif
7d99a001	13
24ebf5f3	14	#define QEMU_BUILD_BUG_ON(x) typedef char __build_bug_on__##__LINE__[(x)?-1:1];
082b5557	15	#define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR)
24ebf5f3	16
29e922b6 BS	17	typedef struct QEMUTimer QEMUTimer;
	18	typedef struct QEMUFile QEMUFile;
	19	typedef struct QEMUBH QEMUBH;
92a16d7a	20	typedef struct DeviceState DeviceState;
29e922b6	21
316378e4 JK	22	struct Monitor;
	23	typedef struct Monitor Monitor;
	24
faf07963 PB	25	/* we put basic includes here to avoid repeating them in device drivers */
	26	#include <stdlib.h>
	27	#include <stdio.h>
	28	#include <stdarg.h>
11165820	29	#include <stdbool.h>
faf07963	30	#include <string.h>
c8906845	31	#include <strings.h>
faf07963 PB	32	#include <inttypes.h>
	33	#include <limits.h>
	34	#include <time.h>
	35	#include <ctype.h>
	36	#include <errno.h>
	37	#include <unistd.h>
	38	#include <fcntl.h>
	39	#include <sys/stat.h>
dcfd0865	40	#include <sys/time.h>
55616505	41	#include <assert.h>
faf07963	42
082b5557 BS	43	#ifdef _WIN32
	44	#include "qemu-os-win32.h"
	45	#endif
	46
	47	#ifdef CONFIG_POSIX
	48	#include "qemu-os-posix.h"
	49	#endif
	50
faf07963 PB	51	#ifndef O_LARGEFILE
	52	#define O_LARGEFILE 0
	53	#endif
	54	#ifndef O_BINARY
	55	#define O_BINARY 0
	56	#endif
0e74e66b JQ	57	#ifndef MAP_ANONYMOUS
	58	#define MAP_ANONYMOUS MAP_ANON
	59	#endif
faf07963 PB	60	#ifndef ENOMEDIUM
	61	#define ENOMEDIUM ENODEV
	62	#endif
4c955388	63	#if !defined(ENOTSUP)
2880bc32 JQ	64	#define ENOTSUP 4096
2880bc32 JQ	65	#endif
3c9405a0 GH	66	#ifndef TIME_MAX
	67	#define TIME_MAX LONG_MAX
	68	#endif
faf07963	69
6114fdb0 JQ	70	#ifndef CONFIG_IOVEC
6114fdb0 JQ	71	#define CONFIG_IOVEC
bf9298b9 AL	72	struct iovec {
	73	void *iov_base;
	74	size_t iov_len;
	75	};
e2a305fb CH	76	/*
	77	* Use the same value as Linux for now.
	78	*/
	79	#define IOV_MAX 1024
331dadde BS	80	#else
331dadde BS	81	#include <sys/uio.h>
bf9298b9 AL	82	#endif
bf9298b9 AL	83
9c9e7d51 SW	84	#if defined __GNUC__
	85	# if (__GNUC__ < 4) \|\| \
	86	defined(__GNUC_MINOR__) && (__GNUC__ == 4) && (__GNUC_MINOR__ < 4)
	87	/* gcc versions before 4.4.x don't support gnu_printf, so use printf. */
	88	# define GCC_ATTR __attribute__((__unused__, format(printf, 1, 2)))
	89	# define GCC_FMT_ATTR(n, m) __attribute__((format(printf, n, m)))
	90	# else
	91	/* Use gnu_printf when supported (qemu uses standard format strings). */
	92	# define GCC_ATTR __attribute__((__unused__, format(gnu_printf, 1, 2)))
	93	# define GCC_FMT_ATTR(n, m) __attribute__((format(gnu_printf, n, m)))
	94	# endif
	95	#else
	96	#define GCC_ATTR /**/
	97	#define GCC_FMT_ATTR(n, m)
	98	#endif
	99
f868445a SW	100	typedef int (fprintf_function)(FILE f, const char *fmt, ...)
	101	GCC_FMT_ATTR(2, 3);
	102
faf07963	103	#ifdef _WIN32
faf07963 PB	104	#define fsync _commit
faf07963 PB	105	#define lseek _lseeki64
64b85a8f	106	int qemu_ftruncate64(int, int64_t);
faf07963 PB	107	#define ftruncate qemu_ftruncate64
faf07963 PB	108
faf07963 PB	109	static inline char realpath(const char path, char *resolved_path)
	110	{
	111	_fullpath(resolved_path, path, _MAX_PATH);
	112	return resolved_path;
	113	}
	114
	115	#define PRId64 "I64d"
	116	#define PRIx64 "I64x"
	117	#define PRIu64 "I64u"
	118	#define PRIo64 "I64o"
	119	#endif
	120
	121	/* FIXME: Remove NEED_CPU_H. */
	122	#ifndef NEED_CPU_H
	123
faf07963 PB	124	#include <setjmp.h>
	125	#include "osdep.h"
	126	#include "bswap.h"
	127
	128	#else
	129
	130	#include "cpu.h"
	131
	132	#endif /* !defined(NEED_CPU_H) */
	133
	134	/* bottom halves */
faf07963 PB	135	typedef void QEMUBHFunc(void *opaque);
faf07963 PB	136
9a1e9481 KW	137	void async_context_push(void);
	138	void async_context_pop(void);
	139	int get_async_context_id(void);
	140
faf07963 PB	141	QEMUBH qemu_bh_new(QEMUBHFunc cb, void *opaque);
faf07963 PB	142	void qemu_bh_schedule(QEMUBH *bh);
80d3580b AL	143	/* Bottom halfs that are scheduled from a bottom half handler are instantly
	144	* invoked. This can create an infinite loop if a bottom half handler
	145	* schedules itself. qemu_bh_schedule_idle() avoids this infinite loop by
	146	* ensuring that the bottom half isn't executed until the next main loop
	147	* iteration.
	148	*/
1b435b10	149	void qemu_bh_schedule_idle(QEMUBH *bh);
faf07963 PB	150	void qemu_bh_cancel(QEMUBH *bh);
	151	void qemu_bh_delete(QEMUBH *bh);
	152	int qemu_bh_poll(void);
4f999d05	153	void qemu_bh_update_timeout(int *timeout);
faf07963	154
f6503059 AZ	155	void qemu_get_timedate(struct tm *tm, int offset);
	156	int qemu_timedate_diff(struct tm *tm);
	157
faf07963 PB	158	/* cutils.c */
	159	void pstrcpy(char buf, int buf_size, const char str);
	160	char pstrcat(char buf, int buf_size, const char *s);
	161	int strstart(const char str, const char val, const char **ptr);
	162	int stristart(const char str, const char val, const char **ptr);
d43277c5	163	int qemu_strnlen(const char *s, int max_len);
faf07963	164	time_t mktimegm(struct tm *tm);
ad46db9a	165	int qemu_fls(int i);
6f1953c4	166	int qemu_fdatasync(int fd);
db1a4972	167	int fcntl_setfl(int fd, int flag);
d8427002	168
d7142456 JS	169	/*
	170	* strtosz() suffixes used to specify the default treatment of an
	171	* argument passed to strtosz() without an explicit suffix.
	172	* These should be defined using upper case characters in the range
	173	* A-Z, as strtosz() will use qemu_toupper() on the given argument
	174	* prior to comparison.
	175	*/
d8427002 JS	176	#define STRTOSZ_DEFSUFFIX_TB 'T'
	177	#define STRTOSZ_DEFSUFFIX_GB 'G'
	178	#define STRTOSZ_DEFSUFFIX_MB 'M'
	179	#define STRTOSZ_DEFSUFFIX_KB 'K'
	180	#define STRTOSZ_DEFSUFFIX_B 'B'
70b4f4bb JS	181	int64_t strtosz(const char nptr, char *end);
70b4f4bb JS	182	int64_t strtosz_suffix(const char nptr, char *end, const char default_suffix);
faf07963	183
37022086 BS	184	/* path.c */
	185	void init_paths(const char *prefix);
	186	const char path(const char pathname);
	187
cd390083 BS	188	#define qemu_isalnum(c) isalnum((unsigned char)(c))
	189	#define qemu_isalpha(c) isalpha((unsigned char)(c))
	190	#define qemu_iscntrl(c) iscntrl((unsigned char)(c))
	191	#define qemu_isdigit(c) isdigit((unsigned char)(c))
	192	#define qemu_isgraph(c) isgraph((unsigned char)(c))
	193	#define qemu_islower(c) islower((unsigned char)(c))
	194	#define qemu_isprint(c) isprint((unsigned char)(c))
	195	#define qemu_ispunct(c) ispunct((unsigned char)(c))
	196	#define qemu_isspace(c) isspace((unsigned char)(c))
	197	#define qemu_isupper(c) isupper((unsigned char)(c))
	198	#define qemu_isxdigit(c) isxdigit((unsigned char)(c))
	199	#define qemu_tolower(c) tolower((unsigned char)(c))
	200	#define qemu_toupper(c) toupper((unsigned char)(c))
	201	#define qemu_isascii(c) isascii((unsigned char)(c))
	202	#define qemu_toascii(c) toascii((unsigned char)(c))
	203
dc786bc9 JS	204	#ifdef _WIN32
	205	/* ffs() in oslib-win32.c for WIN32, strings.h for the rest of the world */
	206	int ffs(int i);
	207	#endif
	208
b152aa84	209	void qemu_oom_check(void ptr);
ca10f867	210	void *qemu_malloc(size_t size);
2137b4cc	211	void qemu_realloc(void ptr, size_t size);
ca10f867 AJ	212	void *qemu_mallocz(size_t size);
	213	void qemu_free(void *ptr);
	214	char qemu_strdup(const char str);
ac4b0d0c	215	char qemu_strndup(const char str, size_t size);
ca10f867	216
d549db5a GC	217	void qemu_mutex_lock_iothread(void);
	218	void qemu_mutex_unlock_iothread(void);
	219
40ff6d7e	220	int qemu_open(const char *name, int flags, ...);
7c7c0629 JQ	221	ssize_t qemu_write_full(int fd, const void *buf, size_t count)
7c7c0629 JQ	222	QEMU_WARN_UNUSED_RESULT;
40ff6d7e KW	223	void qemu_set_cloexec(int fd);
	224
	225	#ifndef _WIN32
4d54ec78	226	int qemu_add_child_watch(pid_t pid);
f3dfda61	227	int qemu_eventfd(int pipefd[2]);
40ff6d7e KW	228	int qemu_pipe(int pipefd[2]);
	229	#endif
	230
87ecb68b PB	231	/* Error handling. */
87ecb68b PB	232
e5924d89	233	void QEMU_NORETURN hw_error(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
87ecb68b PB	234
	235	/* IO callbacks. */
	236	typedef void IOReadHandler(void opaque, const uint8_t buf, int size);
7b27a769	237	typedef int IOCanReadHandler(void *opaque);
87ecb68b PB	238	typedef void IOHandler(void *opaque);
87ecb68b PB	239
02981419 PB	240	void qemu_iohandler_fill(int pnfds, fd_set readfds, fd_set writefds, fd_set xfds);
	241	void qemu_iohandler_poll(fd_set readfds, fd_set writefds, fd_set *xfds, int rc);
	242
87ecb68b PB	243	struct ParallelIOArg {
	244	void *buffer;
	245	int count;
	246	};
	247
	248	typedef int (DMA_transfer_handler) (void opaque, int nchan, int pos, int size);
	249
	250	/* A load of opaque types so that device init declarations don't have to
	251	pull in all the real definitions. */
	252	typedef struct NICInfo NICInfo;
1ae26a18	253	typedef struct HCIInfo HCIInfo;
87ecb68b PB	254	typedef struct AudioState AudioState;
87ecb68b PB	255	typedef struct BlockDriverState BlockDriverState;
2446333c	256	typedef struct DriveInfo DriveInfo;
87ecb68b	257	typedef struct DisplayState DisplayState;
7d957bd8 AL	258	typedef struct DisplayChangeListener DisplayChangeListener;
7d957bd8 AL	259	typedef struct DisplaySurface DisplaySurface;
7b5d76da	260	typedef struct DisplayAllocator DisplayAllocator;
7d957bd8	261	typedef struct PixelFormat PixelFormat;
87ecb68b	262	typedef struct TextConsole TextConsole;
c60e08d9	263	typedef TextConsole QEMUConsole;
87ecb68b	264	typedef struct CharDriverState CharDriverState;
76d32cba	265	typedef struct MACAddr MACAddr;
87ecb68b	266	typedef struct VLANState VLANState;
f7105843	267	typedef struct VLANClientState VLANClientState;
87ecb68b PB	268	typedef struct i2c_bus i2c_bus;
	269	typedef struct i2c_slave i2c_slave;
	270	typedef struct SMBusDevice SMBusDevice;
fb47a2e9 IY	271	typedef struct PCIHostState PCIHostState;
fb47a2e9 IY	272	typedef struct PCIExpressHost PCIExpressHost;
87ecb68b PB	273	typedef struct PCIBus PCIBus;
87ecb68b PB	274	typedef struct PCIDevice PCIDevice;
0428527c	275	typedef struct PCIExpressDevice PCIExpressDevice;
68f79994	276	typedef struct PCIBridge PCIBridge;
34e65944 IY	277	typedef struct PCIEAERMsg PCIEAERMsg;
	278	typedef struct PCIEAERLog PCIEAERLog;
	279	typedef struct PCIEAERErr PCIEAERErr;
bc20ba98 IY	280	typedef struct PCIEPort PCIEPort;
bc20ba98 IY	281	typedef struct PCIESlot PCIESlot;
87ecb68b PB	282	typedef struct SerialState SerialState;
87ecb68b PB	283	typedef struct IRQState *qemu_irq;
bc24a225 PB	284	typedef struct PCMCIACardState PCMCIACardState;
	285	typedef struct MouseTransformInfo MouseTransformInfo;
	286	typedef struct uWireSlave uWireSlave;
	287	typedef struct I2SCodec I2SCodec;
90d37239	288	typedef struct SSIBus SSIBus;
2292b339	289	typedef struct EventNotifier EventNotifier;
2be24aaa	290	typedef struct VirtIODevice VirtIODevice;
87ecb68b	291
186993ee MT	292	typedef uint64_t pcibus_t;
186993ee MT	293
d2053c3c BS	294	void cpu_exec_init_all(unsigned long tb_size);
d2053c3c BS	295
b3c7724c PB	296	/* CPU save/load. */
	297	void cpu_save(QEMUFile f, void opaque);
	298	int cpu_load(QEMUFile f, void opaque, int version_id);
	299
9e472e10 AL	300	/* Force QEMU to stop what it's doing and service IO */
	301	void qemu_service_io(void);
	302
d9f75a4e AL	303	/* Force QEMU to process pending events */
	304	void qemu_notify_event(void);
	305
8edac960 AL	306	/* Unblock cpu */
8edac960 AL	307	void qemu_cpu_kick(void *env);
46d62fac	308	void qemu_cpu_kick_self(void);
b7680cb6	309	int qemu_cpu_is_self(void *env);
ab33fcda	310	bool all_cpu_threads_idle(void);
8edac960	311
e82bcec2 MT	312	/* work queue */
	313	struct qemu_work_item {
	314	struct qemu_work_item *next;
	315	void (func)(void data);
	316	void *data;
	317	int done;
	318	};
	319
0bf46a40 AL	320	#ifdef CONFIG_USER_ONLY
	321	#define qemu_init_vcpu(env) do { } while (0)
	322	#else
	323	void qemu_init_vcpu(void *env);
	324	#endif
	325
44e3ee8a AL	326	typedef struct QEMUIOVector {
	327	struct iovec *iov;
	328	int niov;
	329	int nalloc;
249aa745	330	size_t size;
44e3ee8a AL	331	} QEMUIOVector;
	332
	333	void qemu_iovec_init(QEMUIOVector *qiov, int alloc_hint);
522584a5	334	void qemu_iovec_init_external(QEMUIOVector qiov, struct iovec iov, int niov);
44e3ee8a	335	void qemu_iovec_add(QEMUIOVector qiov, void base, size_t len);
b8a83a4f KW	336	void qemu_iovec_copy(QEMUIOVector dst, QEMUIOVector src, uint64_t skip,
b8a83a4f KW	337	size_t size);
40b4f539	338	void qemu_iovec_concat(QEMUIOVector dst, QEMUIOVector src, size_t size);
44e3ee8a	339	void qemu_iovec_destroy(QEMUIOVector *qiov);
be959463	340	void qemu_iovec_reset(QEMUIOVector *qiov);
44e3ee8a	341	void qemu_iovec_to_buffer(QEMUIOVector qiov, void buf);
249aa745	342	void qemu_iovec_from_buffer(QEMUIOVector qiov, const void buf, size_t count);
b8a83a4f	343	void qemu_iovec_memset(QEMUIOVector *qiov, int c, size_t count);
e0d9c6f9 CT	344	void qemu_iovec_memset_skip(QEMUIOVector *qiov, int c, size_t count,
e0d9c6f9 CT	345	size_t skip);
44e3ee8a	346
6b837bc4 JS	347	void qemu_progress_init(int enabled, float min_skip);
	348	void qemu_progress_end(void);
	349	void qemu_progress_print(float percent, int max);
	350
082b5557 BS	351	#define QEMU_FILE_TYPE_BIOS 0
	352	#define QEMU_FILE_TYPE_KEYMAP 1
	353	char qemu_find_file(int type, const char name);
	354
	355	/* OS specific functions */
	356	void os_setup_early_signal_handling(void);
	357	char os_find_datadir(const char argv0);
	358	void os_parse_cmd_args(int index, const char *optarg);
	359	void os_pidfile_error(void);
	360
abd0c6bd PB	361	/* Convert a byte between binary and BCD. */
	362	static inline uint8_t to_bcd(uint8_t val)
	363	{
	364	return ((val / 10) << 4) \| (val % 10);
	365	}
	366
	367	static inline uint8_t from_bcd(uint8_t val)
	368	{
	369	return ((val >> 4) * 10) + (val & 0x0f);
	370	}
	371
338b922e	372	/* compute with 96 bit intermediate result: (ab)/c /
	373	static inline uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
	374	{
	375	union {
	376	uint64_t ll;
	377	struct {
	378	#ifdef HOST_WORDS_BIGENDIAN
	379	uint32_t high, low;
	380	#else
	381	uint32_t low, high;
	382	#endif
	383	} l;
	384	} u, res;
	385	uint64_t rl, rh;
	386
	387	u.ll = a;
	388	rl = (uint64_t)u.l.low * (uint64_t)b;
	389	rh = (uint64_t)u.l.high * (uint64_t)b;
	390	rh += (rl >> 32);
	391	res.l.high = rh / c;
	392	res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
	393	return res.ll;
	394	}
	395
0bfe3ca5 AL	396	#include "module.h"
0bfe3ca5 AL	397
faf07963	398	#endif