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Fix: error when listing sessions with no session
[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 bbff088e098107ebd64b171116f767a1f7126079..20dca8132186e46531589d9294b31a44dc52e9b3 100644
(file)
--- a/
src/lib/lttng-ctl/lttng-ctl.c
+++ b/
src/lib/lttng-ctl/lttng-ctl.c
@@
-1078,7
+1078,11
@@
int lttng_enable_event_with_exclusions(struct lttng_handle *handle,
unsigned int free_filter_expression = 0;
struct filter_parser_ctx *ctx = NULL;
unsigned int free_filter_expression = 0;
struct filter_parser_ctx *ctx = NULL;
- memset(&send_buffer, 0, sizeof(send_buffer));
+ /*
+ * We have either a filter or some exclusions, so we need to set up
+ * a variable-length memory block from where to send the data.
+ */
+ lttng_dynamic_buffer_init(&send_buffer);
/*
* Cast as non-const since we may replace the filter expression
/*
* Cast as non-const since we may replace the filter expression
@@
-1128,12
+1132,6
@@
int lttng_enable_event_with_exclusions(struct lttng_handle *handle,
lsm.u.enable.exclusion_count = exclusion_count;
lsm.u.enable.bytecode_len = 0;
lsm.u.enable.exclusion_count = exclusion_count;
lsm.u.enable.bytecode_len = 0;
- /*
- * We have either a filter or some exclusions, so we need to set up
- * a variable-length memory block from where to send the data.
- */
- lttng_dynamic_buffer_init(&send_buffer);
-
/* Parse filter expression. */
if (filter_expression != NULL || handle->domain.type == LTTNG_DOMAIN_JUL
|| handle->domain.type == LTTNG_DOMAIN_LOG4J
/* Parse filter expression. */
if (filter_expression != NULL || handle->domain.type == LTTNG_DOMAIN_JUL
|| handle->domain.type == LTTNG_DOMAIN_LOG4J
@@
-2079,7
+2077,6
@@
int lttng_list_sessions(struct lttng_session **out_sessions)
lsm.cmd_type = LTTNG_LIST_SESSIONS;
ret = lttng_ctl_ask_sessiond(&lsm, (void**) &sessions);
if (ret <= 0) {
lsm.cmd_type = LTTNG_LIST_SESSIONS;
ret = lttng_ctl_ask_sessiond(&lsm, (void**) &sessions);
if (ret <= 0) {
- ret = ret == 0 ? -LTTNG_ERR_FATAL : ret;
goto end;
}
if (!sessions) {
goto end;
}
if (!sessions) {
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