From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Tue, 13 Oct 2015 20:04:23 +0000 (-0400)
Subject: Fix: handle EINTR return value for bt_posix_fallocate
X-Git-Tag: v1.3.0~8
X-Git-Url: http://git.efficios.com/?p=babeltrace.git;a=commitdiff_plain;h=118f5776fcc9e4dc1e79d96d697825bc95174fcb

Fix: handle EINTR return value for bt_posix_fallocate

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
---

diff --git a/formats/ctf/ctf.c b/formats/ctf/ctf.c
index fb4ef730..9cb19f4d 100644
--- a/formats/ctf/ctf.c
+++ b/formats/ctf/ctf.c
@@ -863,7 +863,6 @@ void ctf_packet_seek(struct bt_stream_pos *stream_pos, size_t index, int whence)
 	struct ctf_file_stream *file_stream =
 		container_of(pos, struct ctf_file_stream, pos);
 	int ret;
-	off_t off;
 	struct packet_index *packet_index, *prev_index;
 
 	switch (whence) {
@@ -907,9 +906,11 @@ void ctf_packet_seek(struct bt_stream_pos *stream_pos, size_t index, int whence)
 		}
 		pos->content_size = -1U;	/* Unknown at this point */
 		pos->packet_size = WRITE_PACKET_LEN;
-		off = bt_posix_fallocate(pos->fd, pos->mmap_offset,
-				      pos->packet_size / CHAR_BIT);
-		assert(off == 0);
+		do {
+			ret = bt_posix_fallocate(pos->fd, pos->mmap_offset,
+					      pos->packet_size / CHAR_BIT);
+		} while (ret == EINTR);
+		assert(ret == 0);
 		pos->offset = 0;
 	} else {
 	read_next_packet:
diff --git a/formats/ctf/writer/event-fields.c b/formats/ctf/writer/event-fields.c
index 9eff2dca..c49bc3fa 100644
--- a/formats/ctf/writer/event-fields.c
+++ b/formats/ctf/writer/event-fields.c
@@ -1242,9 +1242,13 @@ int increase_packet_size(struct ctf_stream_pos *pos)
 	}
 
 	pos->packet_size += PACKET_LEN_INCREMENT;
-	ret = bt_posix_fallocate(pos->fd, pos->mmap_offset,
-		pos->packet_size / CHAR_BIT);
+	do {
+		ret = bt_posix_fallocate(pos->fd, pos->mmap_offset,
+			pos->packet_size / CHAR_BIT);
+	} while (ret == EINTR);
 	if (ret) {
+		errno = EINTR;
+		ret = -1;
 		goto end;
 	}