msharee9 commented on a change in pull request #604: MINIFICPP-926 Create
nanofi tailfile processor for tailing file by configurable chunk size
URL: https://github.com/apache/nifi-minifi-cpp/pull/604#discussion_r301082554
##########
File path: nanofi/src/api/ecu.c
##########
@@ -0,0 +1,130 @@
+
+#include "api/ecu.h"
+#include "api/nanofi.h"
+#include "core/string_utils.h"
+#include "core/cstructs.h"
+#include "core/file_utils.h"
+#include "core/flowfiles.h"
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <limits.h>
+#include <signal.h>
+#include <sys/stat.h>
+
+nifi_instance * instance = NULL;
+standalone_processor * proc = NULL;
+flow_file_list ff_list;
+int curr_offset = 0;
+int stopped = 0;
+
+void signal_handler(int signum) {
+ if (signum == SIGINT || signum == SIGTERM) {
+ stopped = 1;
+ }
+}
+
+void set_offset(int offset) {
+ curr_offset = offset;
+}
+
+int get_offset() {
+ return curr_offset;
+}
+
+void on_trigger_tailfilechunk(processor_session * ps, processor_context * ctx)
{
+ char file_path[4096] = {0};
+ char chunk_size[50] = {0};
+
+ free_flow_file_list(&ff_list);
+
+ if (get_property(ctx, "file_path", file_path, sizeof(file_path)) != 0) {
+ return;
+ }
+
+ if (get_property(ctx, "chunk_size", chunk_size, sizeof(chunk_size)) != 0) {
+ return;
+ }
+
+ errno = 0;
+ unsigned long chunk_size_value = strtol(chunk_size, NULL, 10);
Review comment:
good point.
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