X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Fkernel-consumer%2Fkernel-consumer.h;fp=src%2Fcommon%2Fkernel-consumer%2Fkernel-consumer.h;h=f4f46169de2a15bf9548df2d8f554a43681ceef9;hp=6e820044bad2ea6618786ff4673bd009f405d199;hb=4078b776c9382a540125d810bcd7cca3a8c84bc8;hpb=87dc6a9c2c936cf4386043083412c695a914cb36

diff --git a/src/common/kernel-consumer/kernel-consumer.h b/src/common/kernel-consumer/kernel-consumer.h
index 6e820044b..f4f46169d 100644
--- a/src/common/kernel-consumer/kernel-consumer.h
+++ b/src/common/kernel-consumer/kernel-consumer.h
@@ -25,18 +25,19 @@
 /*
  * Mmap the ring buffer, read it and write the data to the tracefile.
  *
- * Returns the number of bytes written.
+ * Returns the number of bytes written, or negative value on error.
  */
-extern int lttng_kconsumer_on_read_subbuffer_mmap(
+extern ssize_t lttng_kconsumer_on_read_subbuffer_mmap(
 		struct lttng_consumer_local_data *ctx,
 		struct lttng_consumer_stream *stream, unsigned long len);
 
 /*
  * Splice the data from the ring buffer to the tracefile.
  *
- * Returns the number of bytes spliced.
+ * Returns the number of bytes spliced, or negative error value on
+ * error.
  */
-extern int lttng_kconsumer_on_read_subbuffer_splice(
+extern ssize_t lttng_kconsumer_on_read_subbuffer_splice(
 		struct lttng_consumer_local_data *ctx,
 		struct lttng_consumer_stream *stream, unsigned long len);
 
@@ -62,7 +63,7 @@ int lttng_kconsumer_recv_cmd(struct lttng_consumer_local_data *ctx,
 		int sock, struct pollfd *consumer_sockpoll);
 
 
-int lttng_kconsumer_read_subbuffer(struct lttng_consumer_stream *stream,
+ssize_t lttng_kconsumer_read_subbuffer(struct lttng_consumer_stream *stream,
 		struct lttng_consumer_local_data *ctx);
 int lttng_kconsumer_on_recv_stream(struct lttng_consumer_stream *stream);