root / include / qemu / osdep.h @ 1de7afc9
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#ifndef QEMU_OSDEP_H
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#define QEMU_OSDEP_H
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#include <stdarg.h> |
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#include <stddef.h> |
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#include <stdbool.h> |
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#ifdef __OpenBSD__
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#include <sys/types.h> |
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#include <sys/signal.h> |
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#endif
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#include <sys/time.h> |
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#if defined(CONFIG_SOLARIS) && CONFIG_SOLARIS_VERSION < 10 |
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/* [u]int_fast*_t not in <sys/int_types.h> */
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typedef unsigned char uint_fast8_t; |
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typedef unsigned int uint_fast16_t; |
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typedef signed int int_fast16_t; |
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#endif
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#ifndef glue
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#define xglue(x, y) x ## y |
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#define glue(x, y) xglue(x, y)
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#define stringify(s) tostring(s)
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#define tostring(s) #s |
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#endif
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#ifndef likely
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#if __GNUC__ < 3 |
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#define __builtin_expect(x, n) (x)
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#endif
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#define likely(x) __builtin_expect(!!(x), 1) |
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#define unlikely(x) __builtin_expect(!!(x), 0) |
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#endif
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#ifndef container_of
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#define container_of(ptr, type, member) ({ \
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const typeof(((type *) 0)->member) *__mptr = (ptr); \ |
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(type *) ((char *) __mptr - offsetof(type, member));})
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#endif
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/* Convert from a base type to a parent type, with compile time checking. */
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#ifdef __GNUC__
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#define DO_UPCAST(type, field, dev) ( __extension__ ( { \
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char __attribute__((unused)) offset_must_be_zero[ \
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-offsetof(type, field)]; \ |
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container_of(dev, type, field);})) |
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#else
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#define DO_UPCAST(type, field, dev) container_of(dev, type, field)
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#endif
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#define typeof_field(type, field) typeof(((type *)0)->field) |
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#define type_check(t1,t2) ((t1*)0 - (t2*)0) |
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#ifndef MIN
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#define MIN(a, b) (((a) < (b)) ? (a) : (b))
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#endif
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#ifndef MAX
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#define MAX(a, b) (((a) > (b)) ? (a) : (b))
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#endif
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#ifndef DIV_ROUND_UP
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#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d)) |
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#endif
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#ifndef ARRAY_SIZE
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#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) |
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#endif
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#ifndef always_inline
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#if !((__GNUC__ < 3) || defined(__APPLE__)) |
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#ifdef __OPTIMIZE__
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#undef inline |
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#define inline __attribute__ (( always_inline )) __inline__ |
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#endif
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#endif
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#else
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#undef inline |
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#define inline always_inline |
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#endif
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#define qemu_printf printf
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int qemu_daemon(int nochdir, int noclose); |
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void *qemu_memalign(size_t alignment, size_t size);
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void *qemu_vmalloc(size_t size);
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void qemu_vfree(void *ptr); |
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#define QEMU_MADV_INVALID -1 |
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#if defined(CONFIG_MADVISE)
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#define QEMU_MADV_WILLNEED MADV_WILLNEED
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#define QEMU_MADV_DONTNEED MADV_DONTNEED
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#ifdef MADV_DONTFORK
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#define QEMU_MADV_DONTFORK MADV_DONTFORK
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#else
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#define QEMU_MADV_DONTFORK QEMU_MADV_INVALID
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#endif
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#ifdef MADV_MERGEABLE
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#define QEMU_MADV_MERGEABLE MADV_MERGEABLE
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#else
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#define QEMU_MADV_MERGEABLE QEMU_MADV_INVALID
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#endif
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#ifdef MADV_DONTDUMP
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#define QEMU_MADV_DONTDUMP MADV_DONTDUMP
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#else
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#define QEMU_MADV_DONTDUMP QEMU_MADV_INVALID
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#endif
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#ifdef MADV_HUGEPAGE
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#define QEMU_MADV_HUGEPAGE MADV_HUGEPAGE
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#else
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#define QEMU_MADV_HUGEPAGE QEMU_MADV_INVALID
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#endif
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#elif defined(CONFIG_POSIX_MADVISE)
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#define QEMU_MADV_WILLNEED POSIX_MADV_WILLNEED
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#define QEMU_MADV_DONTNEED POSIX_MADV_DONTNEED
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#define QEMU_MADV_DONTFORK QEMU_MADV_INVALID
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#define QEMU_MADV_MERGEABLE QEMU_MADV_INVALID
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#define QEMU_MADV_DONTDUMP QEMU_MADV_INVALID
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#define QEMU_MADV_HUGEPAGE QEMU_MADV_INVALID
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#else /* no-op */ |
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#define QEMU_MADV_WILLNEED QEMU_MADV_INVALID
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#define QEMU_MADV_DONTNEED QEMU_MADV_INVALID
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#define QEMU_MADV_DONTFORK QEMU_MADV_INVALID
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#define QEMU_MADV_MERGEABLE QEMU_MADV_INVALID
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#define QEMU_MADV_DONTDUMP QEMU_MADV_INVALID
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#define QEMU_MADV_HUGEPAGE QEMU_MADV_INVALID
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#endif
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int qemu_madvise(void *addr, size_t len, int advice); |
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int qemu_open(const char *name, int flags, ...); |
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int qemu_close(int fd); |
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#if defined(__HAIKU__) && defined(__i386__)
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#define FMT_pid "%ld" |
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#elif defined(WIN64)
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#define FMT_pid "%" PRId64 |
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#else
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#define FMT_pid "%d" |
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#endif
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int qemu_create_pidfile(const char *filename); |
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int qemu_get_thread_id(void); |
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#ifdef _WIN32
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static inline void qemu_timersub(const struct timeval *val1, |
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const struct timeval *val2, |
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struct timeval *res)
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{
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res->tv_sec = val1->tv_sec - val2->tv_sec; |
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if (val1->tv_usec < val2->tv_usec) {
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res->tv_sec--; |
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res->tv_usec = val1->tv_usec - val2->tv_usec + 1000 * 1000; |
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} else {
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res->tv_usec = val1->tv_usec - val2->tv_usec; |
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} |
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} |
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#else
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#define qemu_timersub timersub
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#endif
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void qemu_set_cloexec(int fd); |
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void qemu_set_version(const char *); |
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const char *qemu_get_version(void); |
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void fips_set_state(bool requested); |
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bool fips_get_state(void); |
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#endif
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