X-Git-Url: http://git.annexia.org/?p=libguestfs.git;a=blobdiff_plain;f=daemon%2Fdaemon.h;h=489c38d4bd6636199bb2d641eef2b1c91ec639b1;hp=3a67758b88b5be07b0e552600945cba5033eedf7;hb=9ba779ea367b2ea7077da7bdd75e813cd06c7eea;hpb=a0e3b2183733c7440ad017c4ffe361935672339b

diff --git a/daemon/daemon.h b/daemon/daemon.h
index 3a67758..489c38d 100644
--- a/daemon/daemon.h
+++ b/daemon/daemon.h
@@ -36,7 +36,7 @@ extern int verbose;
 extern int autosync_umount;
 
 extern const char *sysroot;
-extern int sysroot_len;
+extern size_t sysroot_len;
 
 extern char *sysroot_path (const char *path);
 
@@ -134,6 +134,9 @@ extern int e2prog (char *name); /* Massive hack for RHEL 5. */
 /*-- in lvm.c --*/
 extern int lv_canonical (const char *device, char **ret);
 
+/*-- in lvm-filter.c --*/
+extern void copy_lvm (void);
+
 /*-- in proto.c --*/
 extern void main_loop (int sock) __attribute__((noreturn));
 
@@ -174,6 +177,53 @@ extern void reply (xdrproc_t xdrp, char *ret);
  */
 extern void notify_progress (uint64_t position, uint64_t total);
 
+/* Pulse mode progress messages.
+ *
+ * Call pulse_mode_start to start sending progress messages.
+ *
+ * Call pulse_mode_end along the ordinary exit path (ie. before a
+ * reply message is sent).
+ *
+ * Call pulse_mode_cancel along all error paths *before* any reply is
+ * sent.  pulse_mode_cancel does not modify errno, so it is safe to
+ * call it before reply_with_perror.
+ *
+ * Pulse mode and ordinary notify_progress must not be mixed.
+ */
+extern void pulse_mode_start (void);
+extern void pulse_mode_end (void);
+extern void pulse_mode_cancel (void);
+
+/* Return true iff the buffer is all zero bytes.
+ *
+ * Note that gcc is smart enough to optimize this properly:
+ * http://stackoverflow.com/questions/1493936/faster-means-of-checking-for-an-empty-buffer-in-c/1493989#1493989
+ */
+static inline int
+is_zero (const char *buffer, size_t size)
+{
+  size_t i;
+
+  for (i = 0; i < size; ++i) {
+    if (buffer[i] != 0)
+      return 0;
+  }
+
+  return 1;
+}
+
+/* Helper for building up short lists of arguments.  Your code has to
+ * define MAX_ARGS to a suitable value.
+ */
+#define ADD_ARG(argv,i,v)                                               \
+  do {                                                                  \
+    if ((i) >= MAX_ARGS) {                                              \
+      fprintf (stderr, "%s: %d: internal error: exceeded MAX_ARGS (%zu) when constructing the command line\n", __FILE__, __LINE__, (size_t) MAX_ARGS); \
+      abort ();                                                         \
+    }                                                                   \
+    (argv)[(i)++] = (v);                                                \
+  } while (0)
+
 /* Helper for functions that need a root filesystem mounted.
  * NB. Cannot be used for FileIn functions.
  */