Fix: warning 'fd' may be used uninitialized

[lttng-tools.git] / src / bin / lttng-sessiond / save.c

diff --git a/src/bin/lttng-sessiond/save.c b/src/bin/lttng-sessiond/save.c
index 489446d6311dc4d8048f5f525cf91fcab1e7eaa9..c51338e1758c519a19710ed0334699e9f1af04eb 100644 (file)
--- a/src/bin/lttng-sessiond/save.c
+++ b/src/bin/lttng-sessiond/save.c
@@ -104,6 +104,26 @@ int save_kernel_channel_attributes(struct config_writer *writer,
        if (ret) {
                goto end;
        }
+
+       if (attr->extended.ptr) {
+               struct lttng_channel_extended *ext = NULL;
+
+               ext = (struct lttng_channel_extended *) attr->extended.ptr;
+               ret = config_writer_write_element_unsigned_int(writer,
+                               config_element_monitor_timer_interval,
+                               ext->monitor_timer_interval);
+               if (ret) {
+                       goto end;
+               }
+
+               ret = config_writer_write_element_signed_int(writer,
+                               config_element_blocking_timeout,
+                               ext->blocking_timeout);
+               if (ret) {
+                       goto end;
+               }
+       }
+
 end:
        return ret ? LTTNG_ERR_SAVE_IO_FAIL : 0;
 }
@@ -113,6 +133,7 @@ int save_ust_channel_attributes(struct config_writer *writer,
        struct lttng_ust_channel_attr *attr)
 {
        int ret;
+       struct ltt_ust_channel *channel = NULL;
 
        ret = config_writer_write_element_string(writer,
                config_element_overwrite_mode,
@@ -156,6 +177,26 @@ int save_ust_channel_attributes(struct config_writer *writer,
        if (ret) {
                goto end;
        }
+
+       ret = config_writer_write_element_signed_int(writer,
+                       config_element_blocking_timeout,
+                       attr->u.s.blocking_timeout);
+       if (ret) {
+               goto end;
+       }
+
+       /*
+        * Fetch the monitor timer which is located in the parent of
+        * lttng_ust_channel_attr
+        */
+       channel = caa_container_of(attr, struct ltt_ust_channel, attr);
+       ret = config_writer_write_element_unsigned_int(writer,
+               config_element_monitor_timer_interval,
+               channel->monitor_timer_interval);
+       if (ret) {
+               goto end;
+       }
+
 end:
        return ret ? LTTNG_ERR_SAVE_IO_FAIL : 0;
 }
@@ -174,13 +215,13 @@ const char *get_kernel_instrumentation_string(
                instrumentation_string = config_event_type_tracepoint;
                break;
        case LTTNG_KERNEL_KPROBE:
-               instrumentation_string = config_event_type_kprobe;
+               instrumentation_string = config_event_type_probe;
                break;
        case LTTNG_KERNEL_FUNCTION:
-               instrumentation_string = config_event_type_function;
+               instrumentation_string = config_event_type_function_entry;
                break;
        case LTTNG_KERNEL_KRETPROBE:
-               instrumentation_string = config_event_type_kretprobe;
+               instrumentation_string = config_event_type_function;
                break;
        case LTTNG_KERNEL_NOOP:
                instrumentation_string = config_event_type_noop;
@@ -708,7 +749,11 @@ int init_ust_event_from_agent_event(struct ltt_ust_event *ust_event,
 
        ust_event->enabled = agent_event->enabled;
        ust_event->attr.instrumentation = LTTNG_UST_TRACEPOINT;
-       strncpy(ust_event->attr.name, agent_event->name, LTTNG_SYMBOL_NAME_LEN);
+       if (lttng_strncpy(ust_event->attr.name, agent_event->name,
+                       LTTNG_SYMBOL_NAME_LEN)) {
+               ret = -1;
+               goto end;
+       }
        switch (agent_event->loglevel_type) {
        case LTTNG_EVENT_LOGLEVEL_ALL:
                ust_loglevel_type = LTTNG_UST_LOGLEVEL_ALL;
@@ -1845,8 +1890,7 @@ static
 int save_session(struct ltt_session *session,
        struct lttng_save_session_attr *attr, lttng_sock_cred *creds)
 {
-       int ret, fd;
-       unsigned int file_opened = 0;   /* Indicate if the file has been opened */
+       int ret, fd = -1;
        char config_file_path[PATH_MAX];
        size_t len;
        struct config_writer *writer = NULL;
@@ -1939,7 +1983,6 @@ int save_session(struct ltt_session *session,
                ret = LTTNG_ERR_SAVE_IO_FAIL;
                goto end;
        }
-       file_opened = 1;
 
        writer = config_writer_create(fd, 1);
        if (!writer) {
@@ -2044,11 +2087,18 @@ end:
        }
        if (ret) {
                /* Delete file in case of error */
-               if (file_opened && unlink(config_file_path)) {
+               if ((fd >= 0) && unlink(config_file_path)) {
                        PERROR("Unlinking XML session configuration.");
                }
        }
 
+       if (fd >= 0) {
+               ret = close(fd);
+               if (ret) {
+                       PERROR("Closing XML session configuration");
+               }
+       }
+
        return ret;
 }