X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Ftrace-chunk.c;h=313d49375d6ed0e03cec04af05619aa961b545b2;hp=f909a682f6b376769b9cdbd27662e7d36f5e64b7;hb=4b050fdd4674dd33baf805bbffec487bb42bd88d;hpb=83fa31bf7c7ba6cb7837e35762059a090343f376

diff --git a/src/common/trace-chunk.c b/src/common/trace-chunk.c
index f909a682f..313d49375 100644
--- a/src/common/trace-chunk.c
+++ b/src/common/trace-chunk.c
@@ -97,8 +97,14 @@ struct lttng_trace_chunk {
 	char *path;
 	/* An unset id means the chunk is anonymous. */
 	LTTNG_OPTIONAL(uint64_t) id;
+
+	/*
+	 * The creation and close timestamps are NOT monotonic.
+	 * They must not be used in context were monotonicity is required.
+	 */
 	LTTNG_OPTIONAL(time_t) timestamp_creation;
 	LTTNG_OPTIONAL(time_t) timestamp_close;
+
 	LTTNG_OPTIONAL(struct chunk_credentials) credentials;
 	struct lttng_directory_handle *session_output_directory;
 	struct lttng_directory_handle *chunk_directory;
@@ -599,11 +605,20 @@ enum lttng_trace_chunk_status lttng_trace_chunk_set_close_timestamp(
 		status = LTTNG_TRACE_CHUNK_STATUS_INVALID_OPERATION;
 		goto end;
 	}
+
+	/*
+	 * Note: we do not enforce that the closing timestamp be greater or
+	 * equal to the begin timestamp. These timestamps are used for
+	 * generating the chunk name and should only be used in context where
+	 * the monotonicity of time is not important. The source of those
+	 * timestamps is NOT monotonic and represent the system calendar time,
+	 * also know as the wall time.
+	 */
 	if (chunk->timestamp_creation.value > close_ts) {
-		ERR("Failed to set trace chunk close timestamp: close timestamp is before creation timestamp");
-		status = LTTNG_TRACE_CHUNK_STATUS_INVALID_ARGUMENT;
-		goto end;
+		WARN("Set trace chunk close timestamp: close timestamp is before creation timestamp, begin : %ld, close : %ld",
+				chunk->timestamp_creation.value, close_ts);
 	}
+
 	LTTNG_OPTIONAL_SET(&chunk->timestamp_close, close_ts);
 	if (!chunk->name_overridden) {
 		free(chunk->name);
@@ -859,7 +874,7 @@ enum lttng_trace_chunk_status lttng_trace_chunk_rename_path_no_lock(
 		 */
 		chunk->chunk_directory = rename_directory;
 		rename_directory = NULL;
-	} else {
+	} else if (old_path) {
 		size_t i, count = lttng_dynamic_pointer_array_get_count(
 				&chunk->top_level_directories);
 		const bool reference_acquired = lttng_directory_handle_get(
@@ -905,9 +920,12 @@ enum lttng_trace_chunk_status lttng_trace_chunk_rename_path_no_lock(
 		if (status != LTTNG_TRACE_CHUNK_STATUS_OK) {
 			ERR("Error removing subdirectory '%s' file when deleting chunk",
 				old_path);
-			ret = -1;
 			goto end;
 		}
+	} else {
+		/* Unexpected !old_path && !path. */
+		status = LTTNG_TRACE_CHUNK_STATUS_INVALID_ARGUMENT;
+		goto end;
 	}
 
 skip_move:
@@ -1027,7 +1045,7 @@ enum lttng_trace_chunk_status lttng_trace_chunk_set_as_owner(
 		status = LTTNG_TRACE_CHUNK_STATUS_ERROR;
 		goto end;
 	}
-	if (chunk->path[0] != '\0') {
+	if (chunk->path && chunk->path[0] != '\0') {
 		ret = lttng_directory_handle_create_subdirectory_as_user(
 				session_output_directory,
 				chunk->path,
@@ -1491,7 +1509,7 @@ end:
 	return status;
 }
 
-LTTNG_HIDDEN
+static
 int lttng_trace_chunk_remove_subdirectory_recursive(struct lttng_trace_chunk *chunk,
 		const char *path)
 {