r21064: The core of this patch is
[samba.git] / source3 / lib / tallocmsg.c
index 8f03fd66ff1888749bccb9cd26598a1d8660cb83..0f493538f3c104a21f27c7cc58fed2270ff3cd91 100644 (file)
  * Glue code between talloc profiling and the Samba messaging system.
  **/
 
+struct msg_pool_usage_state {
+       TALLOC_CTX *mem_ctx;
+       ssize_t len;
+       size_t buflen;
+       char *s;
+};
+
+static void msg_pool_usage_helper(const void *ptr, int depth, int max_depth, int is_ref, void *_s)
+{
+       const char *name = talloc_get_name(ptr);
+       struct msg_pool_usage_state *state = (struct msg_pool_usage_state *)_s;
+
+       if (is_ref) {
+               sprintf_append(state->mem_ctx, &state->s, &state->len, &state->buflen,
+                              "%*sreference to: %s\n", depth*4, "", name);
+               return;
+       }
+
+       if (depth == 0) {
+               sprintf_append(state->mem_ctx, &state->s, &state->len, &state->buflen,
+                              "%stalloc report on '%s' (total %6lu bytes in %3lu blocks)\n", 
+                              (max_depth < 0 ? "full " :""), name,
+                              (unsigned long)talloc_total_size(ptr),
+                              (unsigned long)talloc_total_blocks(ptr));
+               return;
+       }
+
+       sprintf_append(state->mem_ctx, &state->s, &state->len, &state->buflen,
+                      "%*s%-30s contains %6lu bytes in %3lu blocks (ref %d)\n", 
+                      depth*4, "",
+                      name,
+                      (unsigned long)talloc_total_size(ptr),
+                      (unsigned long)talloc_total_blocks(ptr),
+                      talloc_reference_count(ptr));
+}
 
 /**
  * Respond to a POOL_USAGE message by sending back string form of memory
  * usage stats.
  **/
 void msg_pool_usage(int msg_type, struct process_id src_pid,
-                   void *UNUSED(buf), size_t UNUSED(len))
+                   void *UNUSED(buf), size_t UNUSED(len),
+                   void *private_data)
 {
-       off_t reply;
-       fstring reply_str;
+       struct msg_pool_usage_state state;
 
        SMB_ASSERT(msg_type == MSG_REQ_POOL_USAGE);
        
        DEBUG(2,("Got POOL_USAGE\n"));
 
-       reply = talloc_total_size(NULL);
-       fstr_sprintf(reply_str, "%ld", (long)reply);
+       state.mem_ctx = talloc_init("msg_pool_usage");
+       if (!state.mem_ctx) {
+               return;
+       }
+       state.len       = 0;
+       state.buflen    = 512;
+       state.s         = NULL;
+
+       talloc_report_depth_cb(NULL, 0, -1, msg_pool_usage_helper, &state);
+
+       if (!state.s) {
+               talloc_destroy(state.mem_ctx);
+               return;
+       }
        
        message_send_pid(src_pid, MSG_POOL_USAGE,
-                        reply_str, strlen(reply_str)+1, True);
+                        state.s, strlen(state.s)+1, True);
+
+       talloc_destroy(state.mem_ctx);
 }
 
 /**
@@ -52,6 +101,6 @@ void msg_pool_usage(int msg_type, struct process_id src_pid,
  **/
 void register_msg_pool_usage(void)
 {
-       message_register(MSG_REQ_POOL_USAGE, msg_pool_usage);
+       message_register(MSG_REQ_POOL_USAGE, msg_pool_usage, NULL);
        DEBUG(2, ("Registered MSG_REQ_POOL_USAGE\n"));
 }