#ifndef GIT_COMPAT_UTIL_H
#define GIT_COMPAT_UTIL_H
+#ifdef USE_MSVC_CRTDBG
+/*
+ * For these to work they must appear very early in each
+ * file -- before most of the standard header files.
+ */
+#include <stdlib.h>
+#include <crtdbg.h>
+#endif
+
#define _FILE_OFFSET_BITS 64
#endif
/*
* ARRAY_SIZE - get the number of elements in a visible array
- * <at> x: the array whose size you want.
+ * @x: the array whose size you want.
*
* This does not work on pointers, or arrays declared as [], or
* function parameters. With correct compiler support, such usage
/* Approximation of the length of the decimal representation of this type. */
#define decimal_length(x) ((int)(sizeof(x) * 2.56 + 0.5) + 1)
-#if defined(__sun__)
+#ifdef __MINGW64__
+#define _POSIX_C_SOURCE 1
+#elif defined(__sun__)
/*
* On Solaris, when _XOPEN_EXTENDED is set, its header file
* forces the programs to be XPG4v2, defeating any _XOPEN_SOURCE
#define _SGI_SOURCE 1
#if defined(WIN32) && !defined(__CYGWIN__) /* Both MinGW and MSVC */
-# if defined (_MSC_VER) && !defined(_WIN32_WINNT)
-# define _WIN32_WINNT 0x0502
+# if !defined(_WIN32_WINNT)
+# define _WIN32_WINNT 0x0600
# endif
#define WIN32_LEAN_AND_MEAN /* stops windows.h including winsock.h */
#include <winsock2.h>
#include <regex.h>
#include <utime.h>
#include <syslog.h>
-#ifndef NO_SYS_POLL_H
+#if !defined(NO_POLL_H)
+#include <poll.h>
+#elif !defined(NO_SYS_POLL_H)
#include <sys/poll.h>
#else
+/* Pull the compat stuff */
#include <poll.h>
#endif
#ifdef HAVE_BSD_SYSCTL
#endif
#if defined(__CYGWIN__)
-#include "compat/cygwin.h"
+#include "compat/win32/path-utils.h"
#endif
#if defined(__MINGW32__)
/* pull in Windows compatibility stuff */
+#include "compat/win32/path-utils.h"
#include "compat/mingw.h"
#elif defined(_MSC_VER)
+#include "compat/win32/path-utils.h"
#include "compat/msvc.h"
#else
#include <sys/utsname.h>
#endif
#ifdef NO_INTPTR_T
/*
- * On I16LP32, ILP32 and LP64 "long" is the save bet, however
+ * On I16LP32, ILP32 and LP64 "long" is the safe bet, however
* on LLP86, IL33LLP64 and P64 it needs to be "long long",
* while on IP16 and IP16L32 it is "int" (resp. "short")
* Size needs to match (or exceed) 'sizeof(void *)'.
#ifdef PRECOMPOSE_UNICODE
#include "compat/precompose_utf8.h"
#else
-#define precompose_str(in,i_nfd2nfc)
-#define precompose_argv(c,v)
+static inline void precompose_argv(int argc, const char **argv)
+{
+ ; /* nothing */
+}
#define probe_utf8_pathname_composition()
#endif
#ifdef MKDIR_WO_TRAILING_SLASH
#define mkdir(a,b) compat_mkdir_wo_trailing_slash((a),(b))
-extern int compat_mkdir_wo_trailing_slash(const char*, mode_t);
+int compat_mkdir_wo_trailing_slash(const char*, mode_t);
#endif
#ifdef NO_STRUCT_ITIMERVAL
#endif
#ifdef NO_SETITIMER
-#define setitimer(which,value,ovalue)
+static inline int setitimer(int which, const struct itimerval *value, struct itimerval *newvalue) {
+ return 0; /* pretend success */
+}
#endif
#ifndef NO_LIBGEN_H
#include <libgen.h>
#else
#define basename gitbasename
-extern char *gitbasename(char *);
+char *gitbasename(char *);
#define dirname gitdirname
-extern char *gitdirname(char *);
+char *gitdirname(char *);
#endif
#ifndef NO_ICONV
#include <openssl/err.h>
#endif
+#ifdef HAVE_SYSINFO
+# include <sys/sysinfo.h>
+#endif
+
/* On most systems <netdb.h> would have given us this, but
* not on some systems (e.g. z/OS).
*/
#define PATH_MAX 4096
#endif
-#ifndef PRIuMAX
-#define PRIuMAX "llu"
-#endif
-
-#ifndef SCNuMAX
-#define SCNuMAX PRIuMAX
-#endif
-
-#ifndef PRIu32
-#define PRIu32 "u"
-#endif
-
-#ifndef PRIx32
-#define PRIx32 "x"
-#endif
-
-#ifndef PRIo32
-#define PRIo32 "o"
-#endif
-
typedef uintmax_t timestamp_t;
#define PRItime PRIuMAX
#define parse_timestamp strtoumax
#define TIME_MAX UINTMAX_MAX
+#define TIME_MIN 0
#ifndef PATH_SEP
#define PATH_SEP ':'
#define _PATH_DEFPATH "/usr/local/bin:/usr/bin:/bin"
#endif
+#ifndef platform_core_config
+static inline int noop_core_config(const char *var, const char *value, void *cb)
+{
+ return 0;
+}
+#define platform_core_config noop_core_config
+#endif
+
int lstat_cache_aware_rmdir(const char *path);
#if !defined(__MINGW32__) && !defined(_MSC_VER)
#define rmdir lstat_cache_aware_rmdir
#define is_valid_path(path) 1
#endif
+#ifndef is_path_owned_by_current_user
+
+#ifdef __TANDEM
+#define ROOT_UID 65535
+#else
+#define ROOT_UID 0
+#endif
+
+/*
+ * Do not use this function when
+ * (1) geteuid() did not say we are running as 'root', or
+ * (2) using this function will compromise the system.
+ *
+ * PORTABILITY WARNING:
+ * This code assumes uid_t is unsigned because that is what sudo does.
+ * If your uid_t type is signed and all your ids are positive then it
+ * should all work fine.
+ * If your version of sudo uses negative values for uid_t or it is
+ * buggy and return an overflowed value in SUDO_UID, then git might
+ * fail to grant access to your repository properly or even mistakenly
+ * grant access to someone else.
+ * In the unlikely scenario this happened to you, and that is how you
+ * got to this message, we would like to know about it; so sent us an
+ * email to git@vger.kernel.org indicating which platform you are
+ * using and which version of sudo, so we can improve this logic and
+ * maybe provide you with a patch that would prevent this issue again
+ * in the future.
+ */
+static inline void extract_id_from_env(const char *env, uid_t *id)
+{
+ const char *real_uid = getenv(env);
+
+ /* discard anything empty to avoid a more complex check below */
+ if (real_uid && *real_uid) {
+ char *endptr = NULL;
+ unsigned long env_id;
+
+ errno = 0;
+ /* silent overflow errors could trigger a bug here */
+ env_id = strtoul(real_uid, &endptr, 10);
+ if (!*endptr && !errno)
+ *id = env_id;
+ }
+}
+
+static inline int is_path_owned_by_current_uid(const char *path)
+{
+ struct stat st;
+ uid_t euid;
+
+ if (lstat(path, &st))
+ return 0;
+
+ euid = geteuid();
+ if (euid == ROOT_UID)
+ {
+ if (st.st_uid == ROOT_UID)
+ return 1;
+ else
+ extract_id_from_env("SUDO_UID", &euid);
+ }
+
+ return st.st_uid == euid;
+}
+
+#define is_path_owned_by_current_user is_path_owned_by_current_uid
+#endif
+
#ifndef find_last_dir_sep
static inline char *git_find_last_dir_sep(const char *path)
{
#define find_last_dir_sep git_find_last_dir_sep
#endif
+#ifndef has_dir_sep
+static inline int git_has_dir_sep(const char *path)
+{
+ return !!strchr(path, '/');
+}
+#define has_dir_sep(path) git_has_dir_sep(path)
+#endif
+
+#ifndef query_user_email
+#define query_user_email() NULL
+#endif
+
+#ifdef __TANDEM
+#include <floss.h(floss_execl,floss_execlp,floss_execv,floss_execvp)>
+#include <floss.h(floss_getpwuid)>
+#ifndef NSIG
+/*
+ * NonStop NSE and NSX do not provide NSIG. SIGGUARDIAN(99) is the highest
+ * known, by detective work using kill -l as a list is all signals
+ * instead of signal.h where it should be.
+ */
+# define NSIG 100
+#endif
+#endif
+
#if defined(__HP_cc) && (__HP_cc >= 61000)
#define NORETURN __attribute__((noreturn))
#define NORETURN_PTR
#define LAST_ARG_MUST_BE_NULL
#endif
+#define MAYBE_UNUSED __attribute__((__unused__))
+
#include "compat/bswap.h"
#include "wildmatch.h"
struct strbuf;
/* General helper functions */
-extern void vreportf(const char *prefix, const char *err, va_list params);
-extern NORETURN void usage(const char *err);
-extern NORETURN void usagef(const char *err, ...) __attribute__((format (printf, 1, 2)));
-extern NORETURN void die(const char *err, ...) __attribute__((format (printf, 1, 2)));
-extern NORETURN void die_errno(const char *err, ...) __attribute__((format (printf, 1, 2)));
-extern int error(const char *err, ...) __attribute__((format (printf, 1, 2)));
-extern int error_errno(const char *err, ...) __attribute__((format (printf, 1, 2)));
-extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2)));
-extern void warning_errno(const char *err, ...) __attribute__((format (printf, 1, 2)));
+void vreportf(const char *prefix, const char *err, va_list params);
+NORETURN void usage(const char *err);
+NORETURN void usagef(const char *err, ...) __attribute__((format (printf, 1, 2)));
+NORETURN void die(const char *err, ...) __attribute__((format (printf, 1, 2)));
+NORETURN void die_errno(const char *err, ...) __attribute__((format (printf, 1, 2)));
+int error(const char *err, ...) __attribute__((format (printf, 1, 2)));
+int error_errno(const char *err, ...) __attribute__((format (printf, 1, 2)));
+void warning(const char *err, ...) __attribute__((format (printf, 1, 2)));
+void warning_errno(const char *err, ...) __attribute__((format (printf, 1, 2)));
#ifndef NO_OPENSSL
#ifdef APPLE_COMMON_CRYPTO
#define error_errno(...) (error_errno(__VA_ARGS__), const_error())
#endif
-extern void set_die_routine(NORETURN_PTR void (*routine)(const char *err, va_list params));
-extern void set_error_routine(void (*routine)(const char *err, va_list params));
-extern void (*get_error_routine(void))(const char *err, va_list params);
-extern void set_warn_routine(void (*routine)(const char *warn, va_list params));
-extern void (*get_warn_routine(void))(const char *warn, va_list params);
-extern void set_die_is_recursing_routine(int (*routine)(void));
+typedef void (*report_fn)(const char *, va_list params);
+
+void set_die_routine(NORETURN_PTR report_fn routine);
+void set_error_routine(report_fn routine);
+report_fn get_error_routine(void);
+void set_warn_routine(report_fn routine);
+report_fn get_warn_routine(void);
+void set_die_is_recursing_routine(int (*routine)(void));
-extern int starts_with(const char *str, const char *prefix);
+int starts_with(const char *str, const char *prefix);
+int istarts_with(const char *str, const char *prefix);
/*
* If the string "str" begins with the string found in "prefix", return 1.
#define mmap git_mmap
#define munmap git_munmap
-extern void *git_mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset);
-extern int git_munmap(void *start, size_t length);
+void *git_mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset);
+int git_munmap(void *start, size_t length);
#else /* NO_MMAP || USE_WIN32_MMAP */
#undef stat
#endif
#define stat(path, buf) git_stat(path, buf)
-extern int git_stat(const char *, struct stat *);
+int git_stat(const char *, struct stat *);
#ifdef fstat
#undef fstat
#endif
#define fstat(fd, buf) git_fstat(fd, buf)
-extern int git_fstat(int, struct stat *);
+int git_fstat(int, struct stat *);
#ifdef lstat
#undef lstat
#endif
#define lstat(path, buf) git_lstat(path, buf)
-extern int git_lstat(const char *, struct stat *);
+int git_lstat(const char *, struct stat *);
#endif
#define DEFAULT_PACKED_GIT_LIMIT \
#ifdef NO_PREAD
#define pread git_pread
-extern ssize_t git_pread(int fd, void *buf, size_t count, off_t offset);
+ssize_t git_pread(int fd, void *buf, size_t count, off_t offset);
#endif
/*
* Forward decl that will remind us if its twin in cache.h changes.
* This function is used in compat/pread.c. But we can't include
* cache.h there.
*/
-extern ssize_t read_in_full(int fd, void *buf, size_t count);
+ssize_t read_in_full(int fd, void *buf, size_t count);
#ifdef NO_SETENV
#define setenv gitsetenv
-extern int gitsetenv(const char *, const char *, int);
+int gitsetenv(const char *, const char *, int);
#endif
#ifdef NO_MKDTEMP
#define mkdtemp gitmkdtemp
-extern char *gitmkdtemp(char *);
+char *gitmkdtemp(char *);
#endif
#ifdef NO_UNSETENV
#define unsetenv gitunsetenv
-extern void gitunsetenv(const char *);
+void gitunsetenv(const char *);
#endif
#ifdef NO_STRCASESTR
#define strcasestr gitstrcasestr
-extern char *gitstrcasestr(const char *haystack, const char *needle);
+char *gitstrcasestr(const char *haystack, const char *needle);
#endif
#ifdef NO_STRLCPY
#define strlcpy gitstrlcpy
-extern size_t gitstrlcpy(char *, const char *, size_t);
+size_t gitstrlcpy(char *, const char *, size_t);
#endif
#ifdef NO_STRTOUMAX
#define strtoumax gitstrtoumax
-extern uintmax_t gitstrtoumax(const char *, char **, int);
+uintmax_t gitstrtoumax(const char *, char **, int);
#define strtoimax gitstrtoimax
-extern intmax_t gitstrtoimax(const char *, char **, int);
+intmax_t gitstrtoimax(const char *, char **, int);
#endif
#ifdef NO_HSTRERROR
#define hstrerror githstrerror
-extern const char *githstrerror(int herror);
+const char *githstrerror(int herror);
#endif
#ifdef NO_MEMMEM
#define memmem gitmemmem
void *gitmemmem(const void *haystack, size_t haystacklen,
- const void *needle, size_t needlelen);
+ const void *needle, size_t needlelen);
#endif
#ifdef OVERRIDE_STRDUP
# endif
# define fopen(a,b) git_fopen(a,b)
# endif
-extern FILE *git_fopen(const char*, const char*);
+FILE *git_fopen(const char*, const char*);
#endif
#ifdef SNPRINTF_RETURNS_BOGUS
#undef snprintf
#endif
#define snprintf git_snprintf
-extern int git_snprintf(char *str, size_t maxsize,
- const char *format, ...);
+int git_snprintf(char *str, size_t maxsize,
+ const char *format, ...);
#ifdef vsnprintf
#undef vsnprintf
#endif
#define vsnprintf git_vsnprintf
-extern int git_vsnprintf(char *str, size_t maxsize,
- const char *format, va_list ap);
+int git_vsnprintf(char *str, size_t maxsize,
+ const char *format, va_list ap);
#endif
#ifdef __GLIBC_PREREQ
#ifdef NO_PTHREADS
#define atexit git_atexit
-extern int git_atexit(void (*handler)(void));
+int git_atexit(void (*handler)(void));
#endif
-typedef void (*try_to_free_t)(size_t);
-extern try_to_free_t set_try_to_free_routine(try_to_free_t);
-
static inline size_t st_add(size_t a, size_t b)
{
if (unsigned_add_overflows(a, b))
return a - b;
}
+static inline int cast_size_t_to_int(size_t a)
+{
+ if (a > INT_MAX)
+ die("number too large to represent as int on this platform: %"PRIuMAX,
+ (uintmax_t)a);
+ return (int)a;
+}
+
#ifdef HAVE_ALLOCA_H
# include <alloca.h>
# define xalloca(size) (alloca(size))
# define xalloca(size) (xmalloc(size))
# define xalloca_free(p) (free(p))
#endif
-extern char *xstrdup(const char *str);
-extern void *xmalloc(size_t size);
-extern void *xmallocz(size_t size);
-extern void *xmallocz_gently(size_t size);
-extern void *xmemdupz(const void *data, size_t len);
-extern char *xstrndup(const char *str, size_t len);
-extern void *xrealloc(void *ptr, size_t size);
-extern void *xcalloc(size_t nmemb, size_t size);
-extern void *xmmap(void *start, size_t length, int prot, int flags, int fd, off_t offset);
-extern void *xmmap_gently(void *start, size_t length, int prot, int flags, int fd, off_t offset);
-extern int xopen(const char *path, int flags, ...);
-extern ssize_t xread(int fd, void *buf, size_t len);
-extern ssize_t xwrite(int fd, const void *buf, size_t len);
-extern ssize_t xpread(int fd, void *buf, size_t len, off_t offset);
-extern int xdup(int fd);
-extern FILE *xfopen(const char *path, const char *mode);
-extern FILE *xfdopen(int fd, const char *mode);
-extern int xmkstemp(char *temp_filename);
-extern int xmkstemp_mode(char *temp_filename, int mode);
-extern char *xgetcwd(void);
-extern FILE *fopen_for_writing(const char *path);
-extern FILE *fopen_or_warn(const char *path, const char *mode);
+char *xstrdup(const char *str);
+void *xmalloc(size_t size);
+void *xmallocz(size_t size);
+void *xmallocz_gently(size_t size);
+void *xmemdupz(const void *data, size_t len);
+char *xstrndup(const char *str, size_t len);
+void *xrealloc(void *ptr, size_t size);
+void *xcalloc(size_t nmemb, size_t size);
+void *xmmap(void *start, size_t length, int prot, int flags, int fd, off_t offset);
+void *xmmap_gently(void *start, size_t length, int prot, int flags, int fd, off_t offset);
+int xopen(const char *path, int flags, ...);
+ssize_t xread(int fd, void *buf, size_t len);
+ssize_t xwrite(int fd, const void *buf, size_t len);
+ssize_t xpread(int fd, void *buf, size_t len, off_t offset);
+int xdup(int fd);
+FILE *xfopen(const char *path, const char *mode);
+FILE *xfdopen(int fd, const char *mode);
+int xmkstemp(char *temp_filename);
+int xmkstemp_mode(char *temp_filename, int mode);
+char *xgetcwd(void);
+FILE *fopen_for_writing(const char *path);
+FILE *fopen_or_warn(const char *path, const char *mode);
+
+/*
+ * Like strncmp, but only return zero if s is NUL-terminated and exactly len
+ * characters long. If it is not, consider it greater than t.
+ */
+int xstrncmpz(const char *s, const char *t, size_t len);
/*
* FREE_AND_NULL(ptr) is like free(ptr) followed by ptr = NULL. Note
#define FREE_AND_NULL(p) do { free(p); (p) = NULL; } while (0)
#define ALLOC_ARRAY(x, alloc) (x) = xmalloc(st_mult(sizeof(*(x)), (alloc)))
+#define CALLOC_ARRAY(x, alloc) (x) = xcalloc((alloc), sizeof(*(x)));
#define REALLOC_ARRAY(x, alloc) (x) = xrealloc((x), st_mult(sizeof(*(x)), (alloc)))
#define COPY_ARRAY(dst, src, n) copy_array((dst), (src), (n), sizeof(*(dst)) + \
}
__attribute__((format (printf, 3, 4)))
-extern int xsnprintf(char *dst, size_t max, const char *fmt, ...);
+int xsnprintf(char *dst, size_t max, const char *fmt, ...);
#ifndef HOST_NAME_MAX
#define HOST_NAME_MAX 256
#endif
-extern int xgethostname(char *buf, size_t len);
+int xgethostname(char *buf, size_t len);
/* in ctype.c, for kwset users */
extern const unsigned char tolower_trans_tbl[256];
return 0;
}
+void git_stable_qsort(void *base, size_t nmemb, size_t size,
+ int(*compar)(const void *, const void *));
#ifdef INTERNAL_QSORT
-void git_qsort(void *base, size_t nmemb, size_t size,
- int(*compar)(const void *, const void *));
-#define qsort git_qsort
+#define qsort git_stable_qsort
#endif
#define QSORT(base, n, compar) sane_qsort((base), (n), sizeof(*(base)), compar)
qsort(base, nmemb, size, compar);
}
+#define STABLE_QSORT(base, n, compar) \
+ git_stable_qsort((base), (n), sizeof(*(base)), compar)
+
#ifndef HAVE_ISO_QSORT_S
int git_qsort_s(void *base, size_t nmemb, size_t size,
int (*compar)(const void *, const void *, void *), void *ctx);
#define QSORT_S(base, n, compar, ctx) do { \
if (qsort_s((base), (n), sizeof(*(base)), compar, ctx)) \
- die("BUG: qsort_s() failed"); \
+ BUG("qsort_s() failed"); \
} while (0)
#ifndef REG_STARTEND
#define HAVE_VARIADIC_MACROS 1
#endif
+/* usage.c: only to be used for testing BUG() implementation (see test-tool) */
+extern int BUG_exit_code;
+
#ifdef HAVE_VARIADIC_MACROS
__attribute__((format (printf, 3, 4))) NORETURN
void BUG_fl(const char *file, int line, const char *fmt, ...);
/* Warn on an inaccessible file if errno indicates this is an error */
int warn_on_fopen_errors(const char *path);
-#ifdef GMTIME_UNRELIABLE_ERRORS
-struct tm *git_gmtime(const time_t *);
-struct tm *git_gmtime_r(const time_t *, struct tm *);
-#define gmtime git_gmtime
-#define gmtime_r git_gmtime_r
-#endif
-
#if !defined(USE_PARENS_AROUND_GETTEXT_N) && defined(__GNUC__)
#define USE_PARENS_AROUND_GETTEXT_N 1
#endif
#endif
#ifndef _POSIX_THREAD_SAFE_FUNCTIONS
-#define flockfile(fh)
-#define funlockfile(fh)
+static inline void flockfile(FILE *fh)
+{
+ ; /* nothing */
+}
+static inline void funlockfile(FILE *fh)
+{
+ ; /* nothing */
+}
#define getc_unlocked(fh) getc(fh)
#endif
+#ifdef FILENO_IS_A_MACRO
+int git_fileno(FILE *stream);
+# ifndef COMPAT_CODE_FILENO
+# undef fileno
+# define fileno(p) git_fileno(p)
+# endif
+#endif
+
+#ifdef NEED_ACCESS_ROOT_HANDLER
+int git_access(const char *path, int mode);
+# ifndef COMPAT_CODE_ACCESS
+# ifdef access
+# undef access
+# endif
+# define access(path, mode) git_access(path, mode)
+# endif
+#endif
+
/*
* Our code often opens a path to an optional file, to work on its
* contents when we can successfully open it. We can ignore a failure
return (errno_ == ENOENT || errno_ == ENOTDIR);
}
-extern int cmd_main(int, const char **);
+int cmd_main(int, const char **);
+
+/*
+ * Intercept all calls to exit() and route them to trace2 to
+ * optionally emit a message before calling the real exit().
+ */
+int trace2_cmd_exit_fl(const char *file, int line, int code);
+#define exit(code) exit(trace2_cmd_exit_fl(__FILE__, __LINE__, (code)))
/*
* You can mark a stack variable with UNLEAK(var) to avoid it being
* an annotation, and does nothing in non-leak-checking builds.
*/
#ifdef SUPPRESS_ANNOTATED_LEAKS
-extern void unleak_memory(const void *ptr, size_t len);
+void unleak_memory(const void *ptr, size_t len);
#define UNLEAK(var) unleak_memory(&(var), sizeof(var))
#else
#define UNLEAK(var) do {} while (0)
#endif
+/*
+ * This include must come after system headers, since it introduces macros that
+ * replace system names.
+ */
+#include "banned.h"
+
+/*
+ * container_of - Get the address of an object containing a field.
+ *
+ * @ptr: pointer to the field.
+ * @type: type of the object.
+ * @member: name of the field within the object.
+ */
+#define container_of(ptr, type, member) \
+ ((type *) ((char *)(ptr) - offsetof(type, member)))
+
+/*
+ * helper function for `container_of_or_null' to avoid multiple
+ * evaluation of @ptr
+ */
+static inline void *container_of_or_null_offset(void *ptr, size_t offset)
+{
+ return ptr ? (char *)ptr - offset : NULL;
+}
+
+/*
+ * like `container_of', but allows returned value to be NULL
+ */
+#define container_of_or_null(ptr, type, member) \
+ (type *)container_of_or_null_offset(ptr, offsetof(type, member))
+
+/*
+ * like offsetof(), but takes a pointer to a a variable of type which
+ * contains @member, instead of a specified type.
+ * @ptr is subject to multiple evaluation since we can't rely on __typeof__
+ * everywhere.
+ */
+#if defined(__GNUC__) /* clang sets this, too */
+#define OFFSETOF_VAR(ptr, member) offsetof(__typeof__(*ptr), member)
+#else /* !__GNUC__ */
+#define OFFSETOF_VAR(ptr, member) \
+ ((uintptr_t)&(ptr)->member - (uintptr_t)(ptr))
+#endif /* !__GNUC__ */
+
+void sleep_millisec(int millisec);
+
#endif
projects / thirdparty / git.git / blobdiff