New upstream version 1.7.0+dfsgupstream/1.7.0+dfsg

1 files changed, 25 insertions, 1 deletions

diff --git a/src/backends.h b/src/backends.h
index 61122a1d..e882f3db 100644
--- a/src/backends.h
+++ b/src/backends.h
@@ -1,6 +1,30 @@
 #ifndef NETDATA_BACKENDS_H
 #define NETDATA_BACKENDS_H 1
 
-void *backends_main(void *ptr);
+#define BACKEND_SOURCE_DATA_AS_COLLECTED 0x00000001
+#define BACKEND_SOURCE_DATA_AVERAGE      0x00000002
+#define BACKEND_SOURCE_DATA_SUM          0x00000004
+
+#define BACKEND_SOURCE_BITS (BACKEND_SOURCE_DATA_AS_COLLECTED|BACKEND_SOURCE_DATA_AVERAGE|BACKEND_SOURCE_DATA_SUM)
+
+extern int backend_send_names;
+extern int backend_update_every;
+extern uint32_t backend_options;
+extern const char *backend_prefix;
+
+extern void *backends_main(void *ptr);
+
+extern int backends_can_send_rrdset(uint32_t options, RRDSET *st);
+extern uint32_t backend_parse_data_source(const char *source, uint32_t mode);
+
+extern calculated_number backend_calculate_value_from_stored_data(
+        RRDSET *st                  // the chart
+        , RRDDIM *rd                // the dimension
+        , time_t after              // the start timestamp
+        , time_t before             // the end timestamp
+        , uint32_t options          // BACKEND_SOURCE_* bitmap
+        , time_t *first_timestamp   // the timestamp of the first point used in this response
+        , time_t *last_timestamp    // the timestamp that should be reported to backend
+);
 
 #endif /* NETDATA_BACKENDS_H */