diff --git a/git-compat-util.h b/git-compat-util.h
index 33b68e463cb17b99de23b731ff47d40d7959c93e..7b29d1b905c618a50704a7b2c38041f71c942e71 100644 (file)
--- a/git-compat-util.h
+++ b/git-compat-util.h
#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 */
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);
extern int gitsetenv(const char *, const char *, int);
#endif
+#ifdef NO_MKDTEMP
+#define mkdtemp gitmkdtemp
+extern char *gitmkdtemp(char *);
+#endif
+
#ifdef NO_UNSETENV
#define unsetenv gitunsetenv
extern void gitunsetenv(const char *);
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");
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);
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);
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);
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));
}
}
+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;
+}
+
static inline int has_extension(const char *filename, const char *ext)
{
size_t len = strlen(filename);
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;
+}
+
+static inline int strtol_i(char const *s, int base, int *result)
+{
+ long ul;
+ char *p;
+
+ errno = 0;
+ ul = strtol(s, &p, base);
+ if (errno || *p || p == s || (int) ul != ul)
+ return -1;
+ *result = ul;
+ return 0;
+}
+
#endif