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-rw-r--r--src/vlibapi/api_common.h1
-rw-r--r--src/vlibmemory/socket_api.c74
2 files changed, 52 insertions, 23 deletions
diff --git a/src/vlibapi/api_common.h b/src/vlibapi/api_common.h
index 915ddabaca1..3fdc1bbdd36 100644
--- a/src/vlibapi/api_common.h
+++ b/src/vlibapi/api_common.h
@@ -57,6 +57,7 @@ typedef struct vl_api_registration_
f64 last_heard;
int last_queue_head;
int unanswered_pings;
+ int is_being_removed;
/** shared memory only: pointer to client input queue */
svm_queue_t *vl_input_queue;
diff --git a/src/vlibmemory/socket_api.c b/src/vlibmemory/socket_api.c
index d85339b4dff..f5b3a6063f9 100644
--- a/src/vlibmemory/socket_api.c
+++ b/src/vlibmemory/socket_api.c
@@ -148,15 +148,6 @@ vl_socket_api_send (vl_api_registration_t * rp, u8 * elem)
error = clib_file_write (cf);
unix_save_error (&unix_main, error);
- /* Make sure cf not removed in clib_file_write */
- cf = vl_api_registration_file (rp);
- if (!cf)
- {
- clib_warning ("cf removed");
- vl_msg_api_free ((void *) elem);
- return;
- }
-
/* If we didn't finish sending everything, wait for tx space */
if (vec_len (sock_rp->output_vector) > 0
&& !(cf->flags & UNIX_FILE_DATA_AVAILABLE_TO_WRITE))
@@ -213,6 +204,42 @@ vl_socket_process_api_msg (vl_api_registration_t * rp, i8 * input_v)
socket_main.current_rp = 0;
}
+int
+is_being_removed_reg_index (u32 reg_index)
+{
+ vl_api_registration_t *rp = vl_socket_get_registration (reg_index);
+ ALWAYS_ASSERT (rp != 0);
+ return (rp->is_being_removed);
+}
+
+static void
+socket_cleanup_pending_remove_registration_cb (u32 *preg_index)
+{
+ vl_api_registration_t *rp = vl_socket_get_registration (*preg_index);
+ clib_file_main_t *fm = &file_main;
+ u32 pending_remove_file_index = vl_api_registration_file_index (rp);
+
+ clib_file_t *zf = fm->file_pool + pending_remove_file_index;
+
+ clib_file_del (fm, zf);
+ vl_socket_free_registration_index (rp - socket_main.registration_pool);
+}
+
+static void
+vl_socket_request_remove_reg_index (u32 reg_index)
+{
+ vl_api_registration_t *rp = vl_socket_get_registration (reg_index);
+ ALWAYS_ASSERT (rp != 0);
+ if (rp->is_being_removed)
+ {
+ return;
+ }
+ rp->is_being_removed = 1;
+ vl_api_force_rpc_call_main_thread (
+ socket_cleanup_pending_remove_registration_cb, (void *) &reg_index,
+ sizeof (u32));
+}
+
/*
* Read function for API socket.
*
@@ -232,7 +259,6 @@ vl_socket_process_api_msg (vl_api_registration_t * rp, i8 * input_v)
clib_error_t *
vl_socket_read_ready (clib_file_t * uf)
{
- clib_file_main_t *fm = &file_main;
vlib_main_t *vm = vlib_get_main ();
vl_api_registration_t *rp;
/* n is the size of data read to input_buffer */
@@ -246,6 +272,10 @@ vl_socket_read_ready (clib_file_t * uf)
u32 save_input_buffer_length = vec_len (socket_main.input_buffer);
vl_socket_args_for_process_t *a;
u32 reg_index = uf->private_data;
+ if (is_being_removed_reg_index (reg_index))
+ {
+ return 0;
+ }
rp = vl_socket_get_registration (reg_index);
@@ -258,8 +288,7 @@ vl_socket_read_ready (clib_file_t * uf)
if (errno != EAGAIN)
{
/* Severe error, close the file. */
- clib_file_del (fm, uf);
- vl_socket_free_registration_index (reg_index);
+ vl_socket_request_remove_reg_index (reg_index);
}
/* EAGAIN means we do not close the file, but no data to process anyway. */
return 0;
@@ -354,7 +383,13 @@ vl_socket_write_ready (clib_file_t * uf)
vl_api_registration_t *rp;
int n;
- rp = pool_elt_at_index (socket_main.registration_pool, uf->private_data);
+ u32 reg_index = uf->private_data;
+ if (is_being_removed_reg_index (reg_index))
+ {
+ return 0;
+ }
+
+ rp = pool_elt_at_index (socket_main.registration_pool, reg_index);
/* Flush output vector. */
size_t total_bytes = vec_len (rp->output_vector);
@@ -373,9 +408,7 @@ vl_socket_write_ready (clib_file_t * uf)
#if DEBUG > 2
clib_warning ("write error, close the file...\n");
#endif
- clib_file_del (fm, uf);
- vl_socket_free_registration_index (rp -
- socket_main.registration_pool);
+ vl_socket_request_remove_reg_index (reg_index);
return 0;
}
remaining_bytes -= bytes_to_send;
@@ -396,13 +429,8 @@ vl_socket_write_ready (clib_file_t * uf)
clib_error_t *
vl_socket_error_ready (clib_file_t * uf)
{
- vl_api_registration_t *rp;
- clib_file_main_t *fm = &file_main;
-
- rp = pool_elt_at_index (socket_main.registration_pool, uf->private_data);
- clib_file_del (fm, uf);
- vl_socket_free_registration_index (rp - socket_main.registration_pool);
-
+ u32 reg_index = uf->private_data;
+ vl_socket_request_remove_reg_index (reg_index);
return 0;
}