qemu-common.h

   1 /* Common header file that is included by all of qemu.  */
   2 #ifndef QEMU_COMMON_H
   3 #define QEMU_COMMON_H
   4
   5 /* we put basic includes here to avoid repeating them in device drivers */
   6 #include <stdlib.h>
   7 #include <stdio.h>
   8 #include <stdarg.h>
   9 #include <string.h>
  10 #include <inttypes.h>
  11 #include <limits.h>
  12 #include <time.h>
  13 #include <ctype.h>
  14 #include <errno.h>
  15 #include <unistd.h>
  16 #include <fcntl.h>
  17 #include <sys/stat.h>
  18
  19 #ifndef O_LARGEFILE
  20 #define O_LARGEFILE 0
  21 #endif
  22 #ifndef O_BINARY
  23 #define O_BINARY 0
  24 #endif
  25
  26 #ifndef ENOMEDIUM
  27 #define ENOMEDIUM ENODEV
  28 #endif
  29
  30 #ifdef _WIN32
  31 #include <windows.h>
  32 #define fsync _commit
  33 #define lseek _lseeki64
  34 #define ENOTSUP 4096
  35 extern int qemu_ftruncate64(int, int64_t);
  36 #define ftruncate qemu_ftruncate64
  37
  38
  39 static inline char *realpath(const char *path, char *resolved_path)
  40 {
  41     _fullpath(resolved_path, path, _MAX_PATH);
  42     return resolved_path;
  43 }
  44
  45 #define PRId64 "I64d"
  46 #define PRIx64 "I64x"
  47 #define PRIu64 "I64u"
  48 #define PRIo64 "I64o"
  49 #endif
  50
  51 /* FIXME: Remove NEED_CPU_H.  */
  52 #ifndef NEED_CPU_H
  53
  54 #include "config-host.h"
  55 #include <setjmp.h>
  56 #include "osdep.h"
  57 #include "bswap.h"
  58
  59 #else
  60
  61 #include "cpu.h"
  62
  63 #endif /* !defined(NEED_CPU_H) */
  64
  65 #ifndef glue
  66 #define xglue(x, y) x ## y
  67 #define glue(x, y) xglue(x, y)
  68 #define stringify(s)    tostring(s)
  69 #define tostring(s)     #s
  70 #endif
  71
  72 #ifndef likely
  73 #if __GNUC__ < 3
  74 #define __builtin_expect(x, n) (x)
  75 #endif
  76
  77 #define likely(x)   __builtin_expect(!!(x), 1)
  78 #define unlikely(x)   __builtin_expect(!!(x), 0)
  79 #endif
  80
  81 #ifndef MIN
  82 #define MIN(a, b) (((a) < (b)) ? (a) : (b))
  83 #endif
  84 #ifndef MAX
  85 #define MAX(a, b) (((a) > (b)) ? (a) : (b))
  86 #endif
  87
  88 #ifndef always_inline
  89 #if (__GNUC__ < 3) || defined(__APPLE__)
  90 #define always_inline inline
  91 #else
  92 #define always_inline __attribute__ (( always_inline )) inline
  93 #endif
  94 #endif
  95
  96 /* bottom halves */
  97 typedef struct QEMUBH QEMUBH;
  98
  99 typedef void QEMUBHFunc(void *opaque);
 100
 101 QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque);
 102 void qemu_bh_schedule(QEMUBH *bh);
 103 void qemu_bh_cancel(QEMUBH *bh);
 104 void qemu_bh_delete(QEMUBH *bh);
 105 int qemu_bh_poll(void);
 106
 107 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c);
 108
 109 /* cutils.c */
 110 void pstrcpy(char *buf, int buf_size, const char *str);
 111 char *pstrcat(char *buf, int buf_size, const char *s);
 112 int strstart(const char *str, const char *val, const char **ptr);
 113 int stristart(const char *str, const char *val, const char **ptr);
 114 time_t mktimegm(struct tm *tm);
 115
 116 /* Error handling.  */
 117
 118 void hw_error(const char *fmt, ...)
 119     __attribute__ ((__format__ (__printf__, 1, 2)))
 120     __attribute__ ((__noreturn__));
 121
 122 /* IO callbacks.  */
 123 typedef void IOReadHandler(void *opaque, const uint8_t *buf, int size);
 124 typedef int IOCanRWHandler(void *opaque);
 125 typedef void IOHandler(void *opaque);
 126
 127 struct ParallelIOArg {
 128     void *buffer;
 129     int count;
 130 };
 131
 132 typedef int (*DMA_transfer_handler) (void *opaque, int nchan, int pos, int size);
 133
 134 /* A load of opaque types so that device init declarations don't have to
 135    pull in all the real definitions.  */
 136 typedef struct NICInfo NICInfo;
 137 typedef struct AudioState AudioState;
 138 typedef struct BlockDriverState BlockDriverState;
 139 typedef struct DisplayState DisplayState;
 140 typedef struct TextConsole TextConsole;
 141 typedef struct CharDriverState CharDriverState;
 142 typedef struct VLANState VLANState;
 143 typedef struct QEMUFile QEMUFile;
 144 typedef struct i2c_bus i2c_bus;
 145 typedef struct i2c_slave i2c_slave;
 146 typedef struct SMBusDevice SMBusDevice;
 147 typedef struct QEMUTimer QEMUTimer;
 148 typedef struct PCIBus PCIBus;
 149 typedef struct PCIDevice PCIDevice;
 150 typedef struct SerialState SerialState;
 151 typedef struct IRQState *qemu_irq;
 152 struct pcmcia_card_s;
 153
 154 #endif