Basic hashtable support for UST

[lttng-tools.git] / ltt-sessiond / ust-app.h

diff --git a/ltt-sessiond/ust-app.h b/ltt-sessiond/ust-app.h
index cc08a4c338b1da77f7f619d1af3ba0b822d5d08a..91be503204c1c6b9e421cd5c90011a874f6234c0 100644 (file)
--- a/ltt-sessiond/ust-app.h
+++ b/ltt-sessiond/ust-app.h
@@ -16,8 +16,8 @@
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  */
 
-#ifndef _TRACEABLE_APP_H 
-#define _TRACEABLE_APP_H
+#ifndef _LTT_UST_APP_H 
+#define _LTT_UST_APP_H
 
 #include <stdint.h>
 #include <urcu/list.h>
@@ -37,56 +37,44 @@ struct ust_register_msg {
        char name[16];
 };
 
-/*
- * Traceable application list.
- */
-struct ust_app_list {
-       /*
-        * This lock protects any read/write access to the list and count (which is
-        * basically the list size). All public functions in traceable-app.c
-        * acquire this lock and release it before returning. If none of those
-        * functions are used, the lock MUST be acquired in order to iterate or/and
-        * do any actions on that list.
-        */
-       pthread_mutex_t lock;
-
-       /*
-        * Number of element in the list. The session list lock MUST be acquired if
-        * this counter is used when iterating over the session list.
-        */
-       unsigned int count;
-
-       /* Linked list head */
-       struct cds_list_head head;
+struct cds_lfht *ust_app_ht;
+
+struct cds_lfht *ust_app_sock_key_map;
+
+struct ust_app_key {
+       pid_t pid;
+       int sock;
+       struct cds_lfht_node node;
 };
 
-/* Registered traceable applications. Libust registers to the session daemon
+/*
+ * Registered traceable applications. Libust registers to the session daemon
  * and a linked list is kept of all running traceable app.
  */
 struct ust_app {
-       int sock;            /* Communication socket with the application */
-       pid_t pid;
+       //int sock;
+       //pid_t pid;
        pid_t ppid;
        uid_t uid;           /* User ID that owns the apps */
        gid_t gid;           /* Group ID that owns the apps */
        uint32_t v_major;    /* Verion major number */
        uint32_t v_minor;    /* Verion minor number */
        char name[17];       /* Process name (short) */
-       struct ltt_ust_channel_list channels;
-       struct cds_list_head list;
+       struct cds_lfht *channels;
+       struct cds_lfht_node node;
+       struct ust_app_key key;
 };
 
 #ifdef CONFIG_LTTNG_TOOLS_HAVE_UST
 
 int ust_app_register(struct ust_register_msg *msg, int sock);
 void ust_app_unregister(int sock);
-unsigned int ust_app_list_count(void);
+unsigned long ust_app_list_count(void);
 
-void ust_app_lock_list(void);
-void ust_app_unlock_list(void);
 void ust_app_clean_list(void);
-struct ust_app_list *ust_app_get_list(void);
-struct ust_app *ust_app_get_by_pid(pid_t pid);
+void ust_app_ht_alloc(void);
+struct cds_lfht *ust_app_get_ht(void);
+struct ust_app *ust_app_find_by_pid(pid_t pid);
 
 #else
 
@@ -128,8 +116,6 @@ struct ust_app *ust_app_get_by_pid(pid_t pid)
        return NULL;
 }
 
-
-
 #endif
 
-#endif /* _TRACEABLE_APP_H */
+#endif /* _LTT_UST_APP_H */