Tests: add placeholder symbol to allow unit tests to link

[lttng-tools.git] / src / lib / lttng-ctl / lttng-ctl.c

diff --git a/src/lib/lttng-ctl/lttng-ctl.c b/src/lib/lttng-ctl/lttng-ctl.c
index 3bc709a68ad2deeb573584297146f468277e8643..4e1665f401a333719b7220638e43a80c95cee4a6 100644 (file)
--- a/src/lib/lttng-ctl/lttng-ctl.c
+++ b/src/lib/lttng-ctl/lttng-ctl.c
@@ -36,6 +36,9 @@
 #include <common/utils.h>
 #include <lttng/lttng.h>
 #include <lttng/health-internal.h>
+#include <lttng/trigger/trigger-internal.h>
+#include <lttng/endpoint.h>
+#include <lttng/channel-internal.h>
 
 #include "filter/filter-ast.h"
 #include "filter/filter-parser.h"
@@ -519,10 +522,6 @@ struct lttng_handle *lttng_create_handle(const char *session_name,
 {
        struct lttng_handle *handle = NULL;
 
-       if (domain == NULL) {
-               goto end;
-       }
-
        handle = zmalloc(sizeof(struct lttng_handle));
        if (handle == NULL) {
                PERROR("malloc handle");
@@ -533,8 +532,10 @@ struct lttng_handle *lttng_create_handle(const char *session_name,
        lttng_ctl_copy_string(handle->session_name, session_name,
                        sizeof(handle->session_name));
 
-       /* Copy lttng domain */
-       lttng_ctl_copy_lttng_domain(&handle->domain, domain);
+       /* Copy lttng domain or leave initialized to 0. */
+       if (domain) {
+               lttng_ctl_copy_lttng_domain(&handle->domain, domain);
+       }
 
 end:
        return handle;
@@ -1561,6 +1562,7 @@ int lttng_create_session(const char *name, const char *url)
  * Destroy session using name.
  * Returns size of returned session payload data or a negative error code.
  */
+static
 int _lttng_destroy_session(const char *session_name)
 {
        struct lttcomm_session_msg lsm;
@@ -1928,26 +1930,13 @@ int lttng_set_tracing_group(const char *name)
        return 0;
 }
 
-/*
- * Returns size of returned session payload data or a negative error code.
- */
 int lttng_calibrate(struct lttng_handle *handle,
                struct lttng_calibrate *calibrate)
 {
-       struct lttcomm_session_msg lsm;
-
-       /* Safety check. NULL pointer are forbidden */
-       if (handle == NULL || calibrate == NULL) {
-               return -LTTNG_ERR_INVALID;
-       }
-
-       memset(&lsm, 0, sizeof(lsm));
-       lsm.cmd_type = LTTNG_CALIBRATE;
-       lttng_ctl_copy_lttng_domain(&lsm.domain, &handle->domain);
-
-       memcpy(&lsm.u.calibrate, calibrate, sizeof(lsm.u.calibrate));
-
-       return lttng_ctl_ask_sessiond(&lsm, NULL);
+       /*
+        * This command was removed in LTTng 2.9.
+        */
+       return -LTTNG_ERR_UND;
 }
 
 /*
@@ -2385,7 +2374,45 @@ int lttng_list_tracker_pids(struct lttng_handle *handle,
  * Regenerate the metadata for a session.
  * Return 0 on success, a negative error code on error.
  */
+int lttng_regenerate_metadata(const char *session_name)
+{
+       int ret;
+       struct lttcomm_session_msg lsm;
+
+       if (!session_name) {
+               ret = -LTTNG_ERR_INVALID;
+               goto end;
+       }
+
+       memset(&lsm, 0, sizeof(lsm));
+       lsm.cmd_type = LTTNG_REGENERATE_METADATA;
+
+       lttng_ctl_copy_string(lsm.session.name, session_name,
+                       sizeof(lsm.session.name));
+
+       ret = lttng_ctl_ask_sessiond(&lsm, NULL);
+       if (ret < 0) {
+               goto end;
+       }
+
+       ret = 0;
+end:
+       return ret;
+}
+
+/*
+ * Deprecated, replaced by lttng_regenerate_metadata.
+ */
 int lttng_metadata_regenerate(const char *session_name)
+{
+       return lttng_regenerate_metadata(session_name);
+}
+
+/*
+ * Regenerate the statedump of a session.
+ * Return 0 on success, a negative error code on error.
+ */
+int lttng_regenerate_statedump(const char *session_name)
 {
        int ret;
        struct lttcomm_session_msg lsm;
@@ -2396,7 +2423,7 @@ int lttng_metadata_regenerate(const char *session_name)
        }
 
        memset(&lsm, 0, sizeof(lsm));
-       lsm.cmd_type = LTTNG_METADATA_REGENERATE;
+       lsm.cmd_type = LTTNG_REGENERATE_STATEDUMP;
 
        lttng_ctl_copy_string(lsm.session.name, session_name,
                        sizeof(lsm.session.name));
@@ -2411,10 +2438,98 @@ end:
        return ret;
 }
 
+int lttng_register_trigger(struct lttng_trigger *trigger)
+{
+       int ret;
+       struct lttcomm_session_msg lsm;
+       char *trigger_buf = NULL;
+       ssize_t trigger_size;
+
+       if (!trigger) {
+               ret = -LTTNG_ERR_INVALID;
+               goto end;
+       }
+
+       if (!lttng_trigger_validate(trigger)) {
+               ret = -LTTNG_ERR_INVALID;
+               goto end;
+       }
+
+       trigger_size = lttng_trigger_serialize(trigger, NULL);
+       if (trigger_size < 0) {
+               ret = -LTTNG_ERR_UNK;
+               goto end;
+       }
+
+       trigger_buf = zmalloc(trigger_size);
+       if (!trigger_buf) {
+               ret = -LTTNG_ERR_NOMEM;
+               goto end;
+       }
+
+       memset(&lsm, 0, sizeof(lsm));
+       lsm.cmd_type = LTTNG_REGISTER_TRIGGER;
+       if (lttng_trigger_serialize(trigger, trigger_buf) < 0) {
+               ret = -LTTNG_ERR_UNK;
+               goto end;
+       }
+
+       lsm.u.trigger.length = (uint32_t) trigger_size;
+       ret = lttng_ctl_ask_sessiond_varlen_no_cmd_header(&lsm, trigger_buf,
+                       trigger_size, NULL);
+end:
+       free(trigger_buf);
+       return ret;
+}
+
+int lttng_unregister_trigger(struct lttng_trigger *trigger)
+{
+       int ret;
+       struct lttcomm_session_msg lsm;
+       char *trigger_buf = NULL;
+       ssize_t trigger_size;
+
+       if (!trigger) {
+               ret = -LTTNG_ERR_INVALID;
+               goto end;
+       }
+
+       if (!lttng_trigger_validate(trigger)) {
+               ret = -LTTNG_ERR_INVALID;
+               goto end;
+       }
+
+       trigger_size = lttng_trigger_serialize(trigger, NULL);
+       if (trigger_size < 0) {
+               ret = -LTTNG_ERR_UNK;
+               goto end;
+       }
+
+       trigger_buf = zmalloc(trigger_size);
+       if (!trigger_buf) {
+               ret = -LTTNG_ERR_NOMEM;
+               goto end;
+       }
+
+       memset(&lsm, 0, sizeof(lsm));
+       lsm.cmd_type = LTTNG_UNREGISTER_TRIGGER;
+       if (lttng_trigger_serialize(trigger, trigger_buf) < 0) {
+               ret = -LTTNG_ERR_UNK;
+               goto end;
+       }
+
+       lsm.u.trigger.length = (uint32_t) trigger_size;
+       ret = lttng_ctl_ask_sessiond_varlen_no_cmd_header(&lsm, trigger_buf,
+                       trigger_size, NULL);
+end:
+       free(trigger_buf);
+       return ret;
+}
+
 /*
  * lib constructor.
  */
-static void __attribute__((constructor)) init()
+static void __attribute__((constructor)) init(void)
 {
        /* Set default session group */
        lttng_set_tracing_group(DEFAULT_TRACING_GROUP);
@@ -2423,7 +2538,7 @@ static void __attribute__((constructor)) init()
 /*
  * lib destructor.
  */
-static void __attribute__((destructor)) lttng_ctl_exit()
+static void __attribute__((destructor)) lttng_ctl_exit(void)
 {
        free(tracing_group);
 }