From 3251c9f4e169f35d5f2410d777b848c49a91348a Mon Sep 17 00:00:00 2001
From: Ludovic Pouzenc <ludovic@pouzenc.fr>
Date: Mon, 15 Aug 2016 17:49:14 +0200
Subject: mcastleech: print dgrambuf stats at finalize_job state

---
 mcastseed/src/dgrambuf.c   | 19 ++++++++++++++++++-
 mcastseed/src/dgrambuf.h   |  2 ++
 mcastseed/src/mcastleech.c |  6 ++++++
 3 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/mcastseed/src/dgrambuf.c b/mcastseed/src/dgrambuf.c
index 061ae30..9feda89 100644
--- a/mcastseed/src/dgrambuf.c
+++ b/mcastseed/src/dgrambuf.c
@@ -29,7 +29,6 @@ struct dgrambuf_stats_t {
 	uint64_t dgrambuf_read_on_full;
 	uint64_t recvmmsg_calls, recv_dgrams, recv_byte;
 	uint64_t dgram_invalid, dgram_past, dgram_future, dgram_dup, dgram_end_marker;
-	uint64_t qsort_calls;
 	uint64_t writev_calls, write_partial, write_byte;
 };
 
@@ -406,6 +405,24 @@ ssize_t dgrambuf_write(dgrambuf_t dbuf, int fd, int *info) {
 	return nwrite;
 }
 
+int dgrambuf_stats(dgrambuf_t dbuf, char **allocated_string) {
+	uint64_t dgram_pending = dgrambuf_get_used_count(dbuf);
+	uint64_t dgram_missing = dbuf->dgram_seq_last - (dbuf->dgram_seq_base - 1) - dgram_pending;
+
+	return asprintf(allocated_string,
+		"dgrambuf_read_on_full==%d "
+		"recvmmsg_calls==%d, recv_dgrams==%d, recv_byte==%d, "
+		"dgram_invalid==%d, dgram_past==%d, dgram_future==%d, dgram_dup==%d, dgram_end_marker==%d, "
+		"writev_calls==%d, write_partial==%d, write_byte==%d "
+		"dgram_pending==%d, dgram_missing==%d",
+		dbuf->stats.dgrambuf_read_on_full,
+		dbuf->stats.recvmmsg_calls, dbuf->stats.recv_dgrams, dbuf->stats.recv_byte,
+		dbuf->stats.dgram_invalid, dbuf->stats.dgram_past, dbuf->stats.dgram_future, dbuf->stats.dgram_dup, dbuf->stats.dgram_end_marker,
+		dbuf->stats.writev_calls, dbuf->stats.write_partial, dbuf->stats.write_byte,
+		dgram_pending, dgram_missing
+	);
+}
+
 dgrambuf_t dgrambuf_new(size_t dgram_slots, size_t dgram_max_size, size_t dgram_header_size, size_t iovec_slots) {
 
 	const void **dgram_slot_seq_ptrs = NULL;
diff --git a/mcastseed/src/dgrambuf.h b/mcastseed/src/dgrambuf.h
index 52a6696..4d712c6 100644
--- a/mcastseed/src/dgrambuf.h
+++ b/mcastseed/src/dgrambuf.h
@@ -31,6 +31,8 @@ size_t dgrambuf_get_used_count(const dgrambuf_t);
 int dgrambuf_have_data_ready_to_write(const dgrambuf_t);
 int dgrambuf_have_received_everything(const dgrambuf_t);
 
+int dgrambuf_stats(dgrambuf_t dbuf, char **allocated_string);
+
 /* Warning : dgrambuf_recvmmsg sets and restore SIGALRM handler if timeout != 0 */
 ssize_t dgrambuf_recvmmsg(dgrambuf_t dbuf, int sockfd, int timeout, int *info);
 ssize_t dgrambuf_write(dgrambuf_t dbuf, int fd, int *info);
diff --git a/mcastseed/src/mcastleech.c b/mcastseed/src/mcastleech.c
index a23e73a..76e1e79 100644
--- a/mcastseed/src/mcastleech.c
+++ b/mcastseed/src/mcastleech.c
@@ -246,6 +246,7 @@ int receive_data() {
 int finalize_job() {
 	ssize_t nwrite;
 	int info_w, res;
+	char *stats;
 
 	/* Don't eat reources in a pooling fashion, blocking IO is fine when no more recv to do */
 	set_O_NONBLOCK(1, 0);
@@ -265,6 +266,11 @@ int finalize_job() {
 		return res;
 	}
 
+	res = dgrambuf_stats(dgrambuf, &stats);
+	if ( res != - 1 ) {
+		fprintf(stderr, "finalize_job(): dgrambuf_stats : %s\n",stats);
+		free(stats);
+	}
 	return 0;
 }
 
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