MINOR: sink: add a support for file descriptors
This is the most basic type of sink. It pre-registers "stdout" and
"stderr", and is able to use writev() on them. The writev() operation
is locked to avoid mixing outputs. It's likely that the registration
should move somewhere else to take into account the fact that stdout
and stderr are still opened or are closed.
diff --git a/include/types/sink.h b/include/types/sink.h
index 3533314..32c0567 100644
--- a/include/types/sink.h
+++ b/include/types/sink.h
@@ -28,10 +28,11 @@
#include <common/ist.h>
/* A sink may be of several types. For now the following types are supported:
- * (none yet)
+ * - file descriptor (such as stdout)
*/
enum sink_type {
SINK_TYPE_NEW, // not yet initialized
+ SINK_TYPE_FD, // events sent to a file descriptor
};
/* This indicates the default event format, which is the destination's
@@ -59,6 +60,7 @@
struct {
unsigned int dropped; // dropped events since last one.
__decl_hathreads(HA_RWLOCK_T lock); // used by some types
+ int fd; // fd num for FD type sink
} ctx;
};