wrapper: move odb_* to environment.c

[thirdparty/git.git] / sha1_file.c

diff --git a/sha1_file.c b/sha1_file.c
index 0cd9435619f1e0637584289b45d52c1cdd8a9460..8e299ae85cf614e17a9571d60e6ab2a92f081eb3 100644 (file)
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -576,6 +576,21 @@ void release_pack_memory(size_t need, int fd)
                ; /* nothing */
 }
 
+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, fd);
+               ret = mmap(start, length, prot, flags, fd, offset);
+               if (ret == MAP_FAILED)
+                       die_errno("Out of memory? mmap failed");
+       }
+       return ret;
+}
+
 void close_pack_windows(struct packed_git *p)
 {
        while (p->windows) {