#ifndef GIT_COMPAT_UTIL_H
#define GIT_COMPAT_UTIL_H
+#ifndef FLEX_ARRAY
+#if defined(__GNUC__) && (__GNUC__ < 3)
+#define FLEX_ARRAY 0
+#else
+#define FLEX_ARRAY /* empty */
+#endif
+#endif
+
+#define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
+
+#if !defined(__APPLE__) && !defined(__FreeBSD__)
+#define _XOPEN_SOURCE 600 /* glibc2 and AIX 5.3L need 500, OpenBSD needs 600 for S_ISLNK() */
+#define _XOPEN_SOURCE_EXTENDED 1 /* AIX 5.3L needs this */
+#endif
+#define _ALL_SOURCE 1
+#define _GNU_SOURCE 1
+#define _BSD_SOURCE 1
+
#include <unistd.h>
#include <stdio.h>
#include <sys/stat.h>
#include <errno.h>
#include <limits.h>
#include <sys/param.h>
-#include <netinet/in.h>
#include <sys/types.h>
#include <dirent.h>
+#include <sys/time.h>
+#include <time.h>
+#include <signal.h>
+#include <sys/wait.h>
+#include <fnmatch.h>
+#include <sys/poll.h>
+#include <sys/socket.h>
+#include <assert.h>
+#include <regex.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <pwd.h>
+#include <inttypes.h>
+#undef _ALL_SOURCE /* AIX 5.3L defines a struct list with _ALL_SOURCE. */
+#include <grp.h>
+#define _ALL_SOURCE 1
+
+#ifndef NO_ICONV
+#include <iconv.h>
+#endif
+
+/* On most systems <limits.h> would have given us this, but
+ * not on some systems (e.g. GNU/Hurd).
+ */
+#ifndef PATH_MAX
+#define PATH_MAX 4096
+#endif
#ifdef __GNUC__
#define NORETURN __attribute__((__noreturn__))
extern void usage(const char *err) NORETURN;
extern void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2)));
extern int error(const char *err, ...) __attribute__((format (printf, 1, 2)));
+extern void warn(const char *err, ...) __attribute__((format (printf, 1, 2)));
+
+extern void set_usage_routine(void (*routine)(const char *err) NORETURN);
+extern void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN);
+extern void set_error_routine(void (*routine)(const char *err, va_list params));
+extern void set_warn_routine(void (*routine)(const char *warn, va_list params));
#ifdef NO_MMAP
#define MAP_FAILED ((void*)-1)
#endif
-#define mmap gitfakemmap
-#define munmap gitfakemunmap
-extern void *gitfakemmap(void *start, size_t length, int prot , int flags, int fd, off_t offset);
-extern int gitfakemunmap(void *start, size_t length);
+#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);
+
+#define DEFAULT_PACKED_GIT_WINDOW_SIZE (1 * 1024 * 1024)
#else /* NO_MMAP */
#include <sys/mman.h>
+#define DEFAULT_PACKED_GIT_WINDOW_SIZE \
+ (sizeof(void*) >= 8 \
+ ? 1 * 1024 * 1024 * 1024 \
+ : 32 * 1024 * 1024)
#endif /* NO_MMAP */
+#define DEFAULT_PACKED_GIT_LIMIT \
+ ((1024L * 1024L) * (sizeof(void*) >= 8 ? 8192 : 256))
+
+#ifdef NO_PREAD
+#define pread git_pread
+extern ssize_t git_pread(int fd, void *buf, size_t count, off_t offset);
+#endif
+
#ifdef NO_SETENV
#define setenv gitsetenv
extern int gitsetenv(const char *, const char *, int);
#endif
+#ifdef NO_UNSETENV
+#define unsetenv gitunsetenv
+extern void gitunsetenv(const char *);
+#endif
+
#ifdef NO_STRCASESTR
#define strcasestr gitstrcasestr
extern char *gitstrcasestr(const char *haystack, const char *needle);
#endif
+#ifdef NO_STRLCPY
+#define strlcpy gitstrlcpy
+extern size_t gitstrlcpy(char *, const char *, size_t);
+#endif
+
+extern void release_pack_memory(size_t);
+
+static inline char* xstrdup(const char *str)
+{
+ char *ret = strdup(str);
+ if (!ret) {
+ release_pack_memory(strlen(str) + 1);
+ ret = strdup(str);
+ if (!ret)
+ die("Out of memory, strdup failed");
+ }
+ return ret;
+}
+
static inline void *xmalloc(size_t size)
{
void *ret = malloc(size);
- if (!ret)
- die("Out of memory, malloc failed");
+ if (!ret && !size)
+ ret = malloc(1);
+ if (!ret) {
+ release_pack_memory(size);
+ ret = malloc(size);
+ if (!ret && !size)
+ ret = malloc(1);
+ if (!ret)
+ die("Out of memory, malloc failed");
+ }
+#ifdef XMALLOC_POISON
+ memset(ret, 0xA5, size);
+#endif
return ret;
}
static inline void *xrealloc(void *ptr, size_t size)
{
void *ret = realloc(ptr, size);
- if (!ret)
- die("Out of memory, realloc failed");
+ if (!ret && !size)
+ ret = realloc(ptr, 1);
+ if (!ret) {
+ release_pack_memory(size);
+ ret = realloc(ptr, size);
+ if (!ret && !size)
+ ret = realloc(ptr, 1);
+ if (!ret)
+ die("Out of memory, realloc failed");
+ }
return ret;
}
static inline void *xcalloc(size_t nmemb, size_t size)
{
void *ret = calloc(nmemb, size);
- if (!ret)
- die("Out of memory, calloc failed");
+ if (!ret && (!nmemb || !size))
+ ret = calloc(1, 1);
+ if (!ret) {
+ release_pack_memory(nmemb * size);
+ ret = calloc(nmemb, size);
+ if (!ret && (!nmemb || !size))
+ ret = calloc(1, 1);
+ if (!ret)
+ die("Out of memory, calloc failed");
+ }
+ return ret;
+}
+
+static inline void *xmmap(void *start, size_t length,
+ int prot, int flags, int fd, off_t offset)
+{
+ void *ret = mmap(start, length, prot, flags, fd, offset);
+ if (ret == MAP_FAILED) {
+ if (!length)
+ return NULL;
+ release_pack_memory(length);
+ ret = mmap(start, length, prot, flags, fd, offset);
+ if (ret == MAP_FAILED)
+ die("Out of memory? mmap failed: %s", strerror(errno));
+ }
return ret;
}
}
}
+static inline int has_extension(const char *filename, const char *ext)
+{
+ size_t len = strlen(filename);
+ size_t extlen = strlen(ext);
+ return len > extlen && !memcmp(filename + len - extlen, ext, extlen);
+}
+
/* Sane ctype - no locale, and works with signed chars */
#undef isspace
#undef isdigit
return x;
}
-#ifndef MAXPATHLEN
-#define MAXPATHLEN 256
-#endif
#endif