Add a g->lock field. This commit simply initializes and destroys the
lock on handle creation/free, and does nothing else.
---
lib/guestfs-internal.h | 6 ++++++
lib/handle.c | 4 ++++
2 files changed, 10 insertions(+)
diff --git a/lib/guestfs-internal.h b/lib/guestfs-internal.h
index 7269fbeba..10080c4b7 100644
--- a/lib/guestfs-internal.h
+++ b/lib/guestfs-internal.h
@@ -52,6 +52,7 @@
#endif
#endif
+#include "glthread/lock.h"
#include "hash.h"
#include "guestfs-utils.h"
@@ -388,6 +389,11 @@ struct guestfs_h {
struct guestfs_h *next; /* Linked list of open handles. */
enum state state; /* See the state machine diagram in
guestfs(3)*/
+ /* Lock acquired when entering any public guestfs_* function to
+ * protect the handle.
+ */
+ gl_recursive_lock_define (, lock);
+
/**** Configuration of the handle. ****/
bool verbose; /* Debugging. */
bool trace; /* Trace calls. */
diff --git a/lib/handle.c b/lib/handle.c
index 91f5f755d..09c29ed84 100644
--- a/lib/handle.c
+++ b/lib/handle.c
@@ -86,6 +86,8 @@ guestfs_create_flags (unsigned flags, ...)
g = calloc (1, sizeof (*g));
if (!g) return NULL;
+ gl_recursive_lock_init (g->lock);
+
g->state = CONFIG;
g->conn = NULL;
@@ -169,6 +171,7 @@ guestfs_create_flags (unsigned flags, ...)
free (g->path);
free (g->hv);
free (g->append);
+ gl_recursive_lock_destroy (g->lock);
free (g);
return NULL;
}
@@ -399,6 +402,7 @@ guestfs_close (guestfs_h *g)
free (g->backend_data);
guestfs_int_free_string_list (g->backend_settings);
free (g->append);
+ gl_recursive_lock_destroy (g->lock);
free (g);
}
--
2.13.2
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