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