1 #ifndef GIT_COMPAT_UTIL_H
2 #define GIT_COMPAT_UTIL_H
6 * See if our compiler is known to support flexible array members.
8 #if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
9 # define FLEX_ARRAY /* empty */
10 #elif defined(__GNUC__)
12 # define FLEX_ARRAY /* empty */
14 # define FLEX_ARRAY 0 /* older GNU extension */
16 #elif defined(_MSC_VER)
17 #define FLEX_ARRAY /* empty */
21 * Otherwise, default to safer but a bit wasteful traditional style
28 #define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
45 #include <sys/utime.h>
50 /* MSVC defines mkdir here, not in io.h */
56 * with MSVC, if we define _POSIX_ we loose half of useful functions
57 * (e.g. chmod, open, close), otherwise we don't have PATH_MAX
58 * because of #ifdef in <io.h>.
59 * So, when build under MSVC, don't define _POSIX_
65 #ifdef _SSIZE_T_DEFINED
69 /* from mingw/include/sys/types.h */
72 typedef long _ssize_t
;
75 typedef _ssize_t ssize_t
;
77 #endif /* Not _SSIZE_T_ */
80 typedef unsigned short _mode_t
;
83 typedef _mode_t mode_t
;
85 #endif /* Not _MODE_T_ */
88 /* from mingw/include/io.h */
89 /* Some defines for _access nAccessMode (MS doesn't define them, but
90 * it doesn't seem to hurt to add them). */
91 #define F_OK 0 /* Check for file existence */
92 /* Well maybe it does hurt. On newer versions of MSVCRT, an access mode
93 of 1 causes invalid parameter error. */
94 #define X_OK 1 /* MS access() doesn't check for execute permission. */
95 #define W_OK 2 /* Check for write permission */
96 #define R_OK 4 /* Check for read permission */
99 /* from mingw/include/string.h */
100 #define strcasecmp(__sz1, __sz2) (_stricmp((__sz1), (__sz2)))
102 /* from mingw/include/stdint.h */
103 typedef unsigned uint32_t;
106 #define NORETURN __attribute__((__noreturn__))
109 #if defined(_MSC_VER)
110 #define NORETURN __declspec(noreturn)
113 #endif /* _MSC_VER */
115 #ifndef __attribute__
116 #define __attribute__(x)
121 extern int error(const char * format
, ...);
122 extern NORETURN
void die(const char *err
, ...) __attribute__((format (printf
, 1, 2)));
124 #ifndef HAVE_STRCHRNUL
125 #define strchrnul gitstrchrnul
126 static inline char *gitstrchrnul(const char *s
, int c
)
128 while (*s
&& *s
!= c
)
134 extern time_t tm_to_time_t(const struct tm
*tm
);
136 extern void release_pack_memory(size_t, int);
138 extern char *xstrdup(const char *str
);
139 extern void *xmalloc(size_t size
);
140 extern void *xrealloc(void *ptr
, size_t size
);
141 extern void *xcalloc(size_t nmemb
, size_t size
);
142 extern ssize_t
xread(int fd
, void *buf
, size_t len
);
145 #define strlcpy gitstrlcpy
146 extern size_t gitstrlcpy(char *, const char *, size_t);
150 #define snprintf _snprintf
158 #define MAP_PRIVATE 1
159 #define MAP_FAILED ((void*)-1)
162 #define mmap git_mmap
163 #define munmap git_munmap
164 extern void *git_mmap(void *start
, size_t length
, int prot
, int flags
, int fd
, off_t offset
);
165 extern int git_munmap(void *start
, size_t length
);
167 /* This value must be multiple of (pagesize * 2) */
168 #define DEFAULT_PACKED_GIT_WINDOW_SIZE (1 * 1024 * 1024)
172 #include <sys/mman.h>
174 /* This value must be multiple of (pagesize * 2) */
175 #define DEFAULT_PACKED_GIT_WINDOW_SIZE \
176 (sizeof(void*) >= 8 \
177 ? 1 * 1024 * 1024 * 1024 \
183 #define pread git_pread
184 extern ssize_t
git_pread(int fd
, void *buf
, size_t count
, off_t offset
);
187 * Forward decl that will remind us if its twin in cache.h changes.
188 * This function is used in compat/pread.c. But we can't include
191 extern ssize_t
read_in_full(int fd
, void *buf
, size_t count
);
194 #include "../compat/mingw.h"
197 /* some defines not available on osx */
199 #define MAX_PATH PATH_MAX
215 #define UINT unsigned int
219 #define PATH_SEPERATOR '\\'
222 /* default PATH_SEPERATOR is / */
223 #ifndef PATH_SEPERATOR
224 #define PATH_SEPERATOR '/'