X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fshared%2Futil.h;h=e4300719a3b12a83cdb9b2e514572f788a18cb5f;hb=1c231f56482546725c4dbd3303f70300bd3c63e9;hp=9913fcefaeba3ff6a4bfd16aaf0cec0cd2fa5828;hpb=5556b5fe41173107a67dbe875fbd916a46e52a02;p=elogind.git

diff --git a/src/shared/util.h b/src/shared/util.h
index 9913fcefa..e4300719a 100644
--- a/src/shared/util.h
+++ b/src/shared/util.h
@@ -58,6 +58,14 @@
 #  error Unknown uid_t size
 #endif
 
+#if SIZEOF_GID_T == 4
+#  define GID_FMT "%" PRIu32
+#elif SIZEOF_GID_T == 2
+#  define GID_FMT "%" PRIu16
+#else
+#  error Unknown gid_t size
+#endif
+
 #include "macro.h"
 #include "time-util.h"
 
@@ -723,6 +731,15 @@ void* greedy_realloc0(void **p, size_t *allocated, size_t need);
 #define GREEDY_REALLOC0(array, allocated, need) \
         greedy_realloc0((void**) &(array), &(allocated), sizeof((array)[0]) * (need))
 
+#define GREEDY_REALLOC0_T(array, count, need)                           \
+        ({                                                              \
+                size_t _size = (count) * sizeof((array)[0]);            \
+                void *_ptr = GREEDY_REALLOC0((array), _size, (need));   \
+                if (_ptr)                                               \
+                        (count) = _size / sizeof((array)[0]);           \
+                _ptr;                                                   \
+        })
+
 static inline void _reset_errno_(int *saved_errno) {
         errno = *saved_errno;
 }
@@ -874,3 +891,5 @@ int fd_warn_permissions(const char *path, int fd);
 
 unsigned long personality_from_string(const char *p);
 const char *personality_to_string(unsigned long);
+
+uint64_t physical_memory(void);