X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=git-compat-util.h;h=6bd8987b2774774fbbd3747a2b571b66ad78727b;hb=20f546a86c5c673fc49050479a12edfb9f8672bf;hp=33b68e463cb17b99de23b731ff47d40d7959c93e;hpb=c4001d92be61766d3494489b15590ca0147ee19d;p=git.git

diff --git a/git-compat-util.h b/git-compat-util.h
index 33b68e463..6bd8987b2 100644
--- 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 +167,13 @@ 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);
+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 +187,7 @@ 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 +200,26 @@ static inline void *xmalloc(size_t size)
 	return ret;
 }
 
+static inline char *xstrndup(const char *str, size_t len)
+{
+	char *p;
+
+	p = memchr(str, '\0', len);
+	if (p)
+		len = p - str;
+	p = xmalloc(len + 1);
+	memcpy(p, str, len);
+	p[len] = '\0';
+	return p;
+}
+
 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 +235,7 @@ 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 +252,7 @@ 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 +282,11 @@ static inline ssize_t xwrite(int fd, const void *buf, size_t len)
 	}
 }
 
+static inline size_t xsize_t(off_t len)
+{
+	return (size_t)len;
+}
+
 static inline int has_extension(const char *filename, const char *ext)
 {
 	size_t len = strlen(filename);
@@ -296,4 +325,17 @@ 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