Fix: unchecked posix_fadvise() return value

[lttng-tools.git] / src / common / consumer.c

diff --git a/src/common/consumer.c b/src/common/consumer.c
index 01ecc24462713715b54686de2fbb67d039eb026c..a96d5165eb9c73e816f13a98427d3f7ec9498f03 100644 (file)
--- a/src/common/consumer.c
+++ b/src/common/consumer.c
@@ -1233,6 +1233,7 @@ void lttng_consumer_should_exit(struct lttng_consumer_local_data *ctx)
 void lttng_consumer_sync_trace_file(struct lttng_consumer_stream *stream,
                off_t orig_offset)
 {
+       int ret;
        int outfd = stream->out_fd;
 
        /*
@@ -1263,8 +1264,11 @@ void lttng_consumer_sync_trace_file(struct lttng_consumer_stream *stream,
         * defined. So it can be expected to lead to lower throughput in
         * streaming.
         */
-       posix_fadvise(outfd, orig_offset - stream->max_sb_size,
+       ret = posix_fadvise(outfd, orig_offset - stream->max_sb_size,
                        stream->max_sb_size, POSIX_FADV_DONTNEED);
+       if (ret) {
+               WARN("posix_fadvise() error (%i)", ret);
+       }
 }
 
 /*
@@ -1598,6 +1602,12 @@ ssize_t lttng_consumer_on_read_subbuffer_mmap(
                        outfd = stream->out_fd;
 
                        if (stream->index_fd >= 0) {
+                               ret = close(stream->index_fd);
+                               if (ret < 0) {
+                                       PERROR("Closing index");
+                                       goto end;
+                               }
+                               stream->index_fd = -1;
                                ret = index_create_file(stream->chan->pathname,
                                                stream->name, stream->uid, stream->gid,
                                                stream->chan->tracefile_size,
@@ -1781,6 +1791,12 @@ ssize_t lttng_consumer_on_read_subbuffer_splice(
                        outfd = stream->out_fd;
 
                        if (stream->index_fd >= 0) {
+                               ret = close(stream->index_fd);
+                               if (ret < 0) {
+                                       PERROR("Closing index");
+                                       goto end;
+                               }
+                               stream->index_fd = -1;
                                ret = index_create_file(stream->chan->pathname,
                                                stream->name, stream->uid, stream->gid,
                                                stream->chan->tracefile_size,
@@ -2213,10 +2229,10 @@ restart:
                DBG("Metadata poll return from wait with %d fd(s)",
                                LTTNG_POLL_GETNB(&events));
                health_poll_exit();
-               DBG("Metadata event catched in thread");
+               DBG("Metadata event caught in thread");
                if (ret < 0) {
                        if (errno == EINTR) {
-                               ERR("Poll EINTR catched");
+                               ERR("Poll EINTR caught");
                                goto restart;
                        }
                        if (LTTNG_POLL_GETNB(&events) == 0) {
@@ -2796,10 +2812,10 @@ restart:
                DBG("Channel poll return from wait with %d fd(s)",
                                LTTNG_POLL_GETNB(&events));
                health_poll_exit();
-               DBG("Channel event catched in thread");
+               DBG("Channel event caught in thread");
                if (ret < 0) {
                        if (errno == EINTR) {
-                               ERR("Poll EINTR catched");
+                               ERR("Poll EINTR caught");
                                goto restart;
                        }
                        if (LTTNG_POLL_GETNB(&events) == 0) {