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 #define WIN32_LEAN_AND_MEAN
  32 #define WINVER 0x0501  /* needed for ipv6 bits */
  33 #include <windows.h>
  34 #define fsync _commit
  35 #define lseek _lseeki64
  36 #define ENOTSUP 4096
  37 extern int qemu_ftruncate64(int, int64_t);
  38 #define ftruncate qemu_ftruncate64
  39
  40
  41 static inline char *realpath(const char *path, char *resolved_path)
  42 {
  43     _fullpath(resolved_path, path, _MAX_PATH);
  44     return resolved_path;
  45 }
  46
  47 #define PRId64 "I64d"
  48 #define PRIx64 "I64x"
  49 #define PRIu64 "I64u"
  50 #define PRIo64 "I64o"
  51 #endif
  52
  53 /* FIXME: Remove NEED_CPU_H.  */
  54 #ifndef NEED_CPU_H
  55
  56 #include "config-host.h"
  57 #include <setjmp.h>
  58 #include "osdep.h"
  59 #include "bswap.h"
  60
  61 #else
  62
  63 #include "cpu.h"
  64
  65 #endif /* !defined(NEED_CPU_H) */
  66
  67 /* bottom halves */
  68 typedef struct QEMUBH QEMUBH;
  69
  70 typedef void QEMUBHFunc(void *opaque);
  71
  72 QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque);
  73 void qemu_bh_schedule(QEMUBH *bh);
  74 /* Bottom halfs that are scheduled from a bottom half handler are instantly
  75  * invoked.  This can create an infinite loop if a bottom half handler
  76  * schedules itself.  qemu_bh_schedule_idle() avoids this infinite loop by
  77  * ensuring that the bottom half isn't executed until the next main loop
  78  * iteration.
  79  */
  80 void qemu_bh_schedule_idle(QEMUBH *bh);
  81 void qemu_bh_cancel(QEMUBH *bh);
  82 void qemu_bh_delete(QEMUBH *bh);
  83 int qemu_bh_poll(void);
  84
  85 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c);
  86
  87 void qemu_get_timedate(struct tm *tm, int offset);
  88 int qemu_timedate_diff(struct tm *tm);
  89
  90 /* cutils.c */
  91 void pstrcpy(char *buf, int buf_size, const char *str);
  92 char *pstrcat(char *buf, int buf_size, const char *s);
  93 int strstart(const char *str, const char *val, const char **ptr);
  94 int stristart(const char *str, const char *val, const char **ptr);
  95 time_t mktimegm(struct tm *tm);
  96
  97 void *qemu_malloc(size_t size);
  98 void *qemu_realloc(void *ptr, size_t size);
  99 void *qemu_mallocz(size_t size);
 100 void qemu_free(void *ptr);
 101 char *qemu_strdup(const char *str);
 102 char *qemu_strndup(const char *str, size_t size);
 103
 104 void *get_mmap_addr(unsigned long size);
 105
 106
 107 /* Error handling.  */
 108
 109 void hw_error(const char *fmt, ...)
 110     __attribute__ ((__format__ (__printf__, 1, 2)))
 111     __attribute__ ((__noreturn__));
 112
 113 /* IO callbacks.  */
 114 typedef void IOReadHandler(void *opaque, const uint8_t *buf, int size);
 115 typedef int IOCanRWHandler(void *opaque);
 116 typedef void IOHandler(void *opaque);
 117
 118 struct ParallelIOArg {
 119     void *buffer;
 120     int count;
 121 };
 122
 123 typedef int (*DMA_transfer_handler) (void *opaque, int nchan, int pos, int size);
 124
 125 /* A load of opaque types so that device init declarations don't have to
 126    pull in all the real definitions.  */
 127 typedef struct NICInfo NICInfo;
 128 typedef struct HCIInfo HCIInfo;
 129 typedef struct AudioState AudioState;
 130 typedef struct BlockDriverState BlockDriverState;
 131 typedef struct DisplayState DisplayState;
 132 typedef struct TextConsole TextConsole;
 133 typedef TextConsole QEMUConsole;
 134 typedef struct CharDriverState CharDriverState;
 135 typedef struct VLANState VLANState;
 136 typedef struct QEMUFile QEMUFile;
 137 typedef struct i2c_bus i2c_bus;
 138 typedef struct i2c_slave i2c_slave;
 139 typedef struct SMBusDevice SMBusDevice;
 140 typedef struct QEMUTimer QEMUTimer;
 141 typedef struct PCIBus PCIBus;
 142 typedef struct PCIDevice PCIDevice;
 143 typedef struct SerialState SerialState;
 144 typedef struct IRQState *qemu_irq;
 145 struct pcmcia_card_s;
 146
 147 /* CPU save/load.  */
 148 void cpu_save(QEMUFile *f, void *opaque);
 149 int cpu_load(QEMUFile *f, void *opaque, int version_id);
 150
 151 /* Force QEMU to stop what it's doing and service IO */
 152 void qemu_service_io(void);
 153
 154 #endif