Merge branch 'maint'

diff --git a/git-compat-util.h b/git-compat-util.h
index 7534db1267bfa64a4a0cba80680fefc42177f0e8..f23d934f667cc2b10ee668a3bfef8492aadbbe7d 100644 (file)
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -13,6 +13,17 @@
 
 #define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
 
+#ifdef __GNUC__
+#define TYPEOF(x) (__typeof__(x))
+#else
+#define TYPEOF(x)
+#endif
+
+#define MSB(x, bits) ((x) & TYPEOF(x)(~0ULL << (sizeof(x) * 8 - (bits))))
+
+/* 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(__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 */
@@ -87,7 +98,7 @@
 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 warning(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);
@@ -156,13 +167,24 @@ extern size_t gitstrlcpy(char *, const char *, size_t);
 extern uintmax_t gitstrtoumax(const char *, char **, int);
 #endif
 
-extern void release_pack_memory(size_t);
+#ifdef NO_HSTRERROR
+#define hstrerror githstrerror
+extern 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);
+#endif
+
+extern void release_pack_memory(size_t, int);
 
 static inline char* xstrdup(const char *str)
 {
        char *ret = strdup(str);
        if (!ret) {
-               release_pack_memory(strlen(str) + 1);
+               release_pack_memory(strlen(str) + 1, -1);
                ret = strdup(str);
                if (!ret)
                        die("Out of memory, strdup failed");
@@ -176,7 +198,7 @@ static inline void *xmalloc(size_t size)
        if (!ret && !size)
                ret = malloc(1);
        if (!ret) {
-               release_pack_memory(size);
+               release_pack_memory(size, -1);
                ret = malloc(size);
                if (!ret && !size)
                        ret = malloc(1);
@@ -189,13 +211,27 @@ static inline void *xmalloc(size_t size)
        return ret;
 }
 
+static inline void *xmemdupz(const void *data, size_t len)
+{
+       char *p = xmalloc(len + 1);
+       memcpy(p, data, len);
+       p[len] = '\0';
+       return p;
+}
+
+static inline char *xstrndup(const char *str, size_t len)
+{
+       char *p = memchr(str, '\0', len);
+       return xmemdupz(str, p ? p - str : len);
+}
+
 static inline void *xrealloc(void *ptr, size_t size)
 {
        void *ret = realloc(ptr, size);
        if (!ret && !size)
                ret = realloc(ptr, 1);
        if (!ret) {
-               release_pack_memory(size);
+               release_pack_memory(size, -1);
                ret = realloc(ptr, size);
                if (!ret && !size)
                        ret = realloc(ptr, 1);
@@ -211,7 +247,7 @@ static inline void *xcalloc(size_t nmemb, size_t size)
        if (!ret && (!nmemb || !size))
                ret = calloc(1, 1);
        if (!ret) {
-               release_pack_memory(nmemb * size);
+               release_pack_memory(nmemb * size, -1);
                ret = calloc(nmemb, size);
                if (!ret && (!nmemb || !size))
                        ret = calloc(1, 1);
@@ -228,7 +264,7 @@ static inline void *xmmap(void *start, size_t length,
        if (ret == MAP_FAILED) {
                if (!length)
                        return NULL;
-               release_pack_memory(length);
+               release_pack_memory(length, fd);
                ret = mmap(start, length, prot, flags, fd, offset);
                if (ret == MAP_FAILED)
                        die("Out of memory? mmap failed: %s", strerror(errno));
@@ -258,6 +294,32 @@ static inline ssize_t xwrite(int fd, const void *buf, size_t len)
        }
 }
 
+static inline int xdup(int fd)
+{
+       int ret = dup(fd);
+       if (ret < 0)
+               die("dup failed: %s", strerror(errno));
+       return ret;
+}
+
+static inline FILE *xfdopen(int fd, const char *mode)
+{
+       FILE *stream = fdopen(fd, mode);
+       if (stream == NULL)
+               die("Out of memory? fdopen failed: %s", strerror(errno));
+       return stream;
+}
+
+static inline int xmkstemp(char *template)
+{
+       int fd;
+
+       fd = mkstemp(template);
+       if (fd < 0)
+               die("Unable to create temporary file: %s", strerror(errno));
+       return fd;
+}
+
 static inline size_t xsize_t(off_t len)
 {
        return (size_t)len;
@@ -301,4 +363,17 @@ static inline int prefixcmp(const char *str, const char *prefix)
        return strncmp(str, prefix, strlen(prefix));
 }
 
+static inline int strtoul_ui(char const *s, int base, unsigned int *result)
+{
+       unsigned long ul;
+       char *p;
+
+       errno = 0;
+       ul = strtoul(s, &p, base);
+       if (errno || *p || p == s || (unsigned int) ul != ul)
+               return -1;
+       *result = ul;
+       return 0;
+}
+
 #endif