Handling change file message in libunit.

This is required for proper log file rotation action.
2020-03-30 14:18:41 +03:00
parent 82b899b136
commit ab7b42a072
3 changed files with 11 additions and 2 deletions
--- a/src/nxt_unit.c
+++ b/src/nxt_unit.c
@@ -767,6 +767,16 @@ nxt_unit_process_msg(nxt_unit_ctx_t *ctx, nxt_unit_port_id_t *port_id,
    case _NXT_PORT_MSG_CHANGE_FILE:
        nxt_unit_debug(ctx, "#%"PRIu32": change_file: fd %d",
                       port_msg->stream, recv_msg.fd);
+
+        if (dup2(recv_msg.fd, lib->log_fd) == -1) {
+            nxt_unit_alert(ctx, "#%"PRIu32": dup2(%d, %d) failed: %s (%d)",
+                           port_msg->stream, recv_msg.fd, lib->log_fd,
+                           strerror(errno), errno);
+
+            goto fail;
+        }
+
+        rc = NXT_UNIT_OK;
        break;

    case _NXT_PORT_MSG_MMAP: