wrapper: move odb_* to environment.c

diff --git a/wrapper.c b/wrapper.c
index 9c71b21242773f52ca560d7e5e5e52123674d334..e67b70a108d5ca540755cc14b37afe4b40748316 100644 (file)
--- a/wrapper.c
+++ b/wrapper.c
@@ -3,11 +3,25 @@
  */
 #include "cache.h"
 
+static void try_to_free_builtin(size_t size)
+{
+       release_pack_memory(size, -1);
+}
+
+static void (*try_to_free_routine)(size_t size) = try_to_free_builtin;
+
+try_to_free_t set_try_to_free_routine(try_to_free_t routine)
+{
+       try_to_free_t old = try_to_free_routine;
+       try_to_free_routine = routine;
+       return old;
+}
+
 char *xstrdup(const char *str)
 {
        char *ret = strdup(str);
        if (!ret) {
-               release_pack_memory(strlen(str) + 1, -1);
+               try_to_free_routine(strlen(str) + 1);
                ret = strdup(str);
                if (!ret)
                        die("Out of memory, strdup failed");
@@ -21,12 +35,13 @@ void *xmalloc(size_t size)
        if (!ret && !size)
                ret = malloc(1);
        if (!ret) {
-               release_pack_memory(size, -1);
+               try_to_free_routine(size);
                ret = malloc(size);
                if (!ret && !size)
                        ret = malloc(1);
                if (!ret)
-                       die("Out of memory, malloc failed");
+                       die("Out of memory, malloc failed (tried to allocate %lu bytes)",
+                           (unsigned long)size);
        }
 #ifdef XMALLOC_POISON
        memset(ret, 0xA5, size);
@@ -67,7 +82,7 @@ void *xrealloc(void *ptr, size_t size)
        if (!ret && !size)
                ret = realloc(ptr, 1);
        if (!ret) {
-               release_pack_memory(size, -1);
+               try_to_free_routine(size);
                ret = realloc(ptr, size);
                if (!ret && !size)
                        ret = realloc(ptr, 1);
@@ -83,7 +98,7 @@ void *xcalloc(size_t nmemb, size_t size)
        if (!ret && (!nmemb || !size))
                ret = calloc(1, 1);
        if (!ret) {
-               release_pack_memory(nmemb * size, -1);
+               try_to_free_routine(nmemb * size);
                ret = calloc(nmemb, size);
                if (!ret && (!nmemb || !size))
                        ret = calloc(1, 1);
@@ -93,21 +108,6 @@ void *xcalloc(size_t nmemb, size_t size)
        return ret;
 }
 
-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;
-}
-
 /*
  * xread() is the same a read(), but it automatically restarts read()
  * operations with a recoverable error (EAGAIN and EINTR). xread()
@@ -274,55 +274,30 @@ int git_inflate(z_streamp strm, int flush)
        return ret;
 }
 
-int odb_mkstemp(char *template, size_t limit, const char *pattern)
-{
-       int fd;
-       /*
-        * we let the umask do its job, don't try to be more
-        * restrictive except to remove write permission.
-        */
-       int mode = 0444;
-       snprintf(template, limit, "%s/%s",
-                get_object_directory(), pattern);
-       fd = git_mkstemp_mode(template, mode);
-       if (0 <= fd)
-               return fd;
-
-       /* slow path */
-       /* some mkstemp implementations erase template on failure */
-       snprintf(template, limit, "%s/%s",
-                get_object_directory(), pattern);
-       safe_create_leading_directories(template);
-       return xmkstemp_mode(template, mode);
-}
-
-int odb_pack_keep(char *name, size_t namesz, unsigned char *sha1)
+static int warn_if_unremovable(const char *op, const char *file, int rc)
 {
-       int fd;
-
-       snprintf(name, namesz, "%s/pack/pack-%s.keep",
-                get_object_directory(), sha1_to_hex(sha1));
-       fd = open(name, O_RDWR|O_CREAT|O_EXCL, 0600);
-       if (0 <= fd)
-               return fd;
-
-       /* slow path */
-       safe_create_leading_directories(name);
-       return open(name, O_RDWR|O_CREAT|O_EXCL, 0600);
-}
-
-int unlink_or_warn(const char *file)
-{
-       int rc = unlink(file);
-
        if (rc < 0) {
                int err = errno;
                if (ENOENT != err) {
-                       warning("unable to unlink %s: %s",
-                               file, strerror(errno));
+                       warning("unable to %s %s: %s",
+                               op, file, strerror(errno));
                        errno = err;
                }
        }
        return rc;
 }
 
+int unlink_or_warn(const char *file)
+{
+       return warn_if_unremovable("unlink", file, unlink(file));
+}
+
+int rmdir_or_warn(const char *file)
+{
+       return warn_if_unremovable("rmdir", file, rmdir(file));
+}
+
+int remove_or_warn(unsigned int mode, const char *file)
+{
+       return S_ISGITLINK(mode) ? rmdir_or_warn(file) : unlink_or_warn(file);
+}