Fix: consumer printf type should match ssize_t (%zd)

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

diff --git a/src/common/kernel-consumer/kernel-consumer.c b/src/common/kernel-consumer/kernel-consumer.c
index bb95529530161b4a45152609a67f8f018eeca6bd..f7d4540cf9d55b25d4a8e5f994bc738e1948d84b 100644 (file)
--- a/src/common/kernel-consumer/kernel-consumer.c
+++ b/src/common/kernel-consumer/kernel-consumer.c
@@ -44,12 +44,12 @@ extern volatile int consumer_quit;
  *
  * Returns the number of bytes written
  */
-int lttng_kconsumer_on_read_subbuffer_mmap(
+ssize_t lttng_kconsumer_on_read_subbuffer_mmap(
                struct lttng_consumer_local_data *ctx,
                struct lttng_consumer_stream *stream, unsigned long len)
 {
        unsigned long mmap_offset;
-       long ret = 0;
+       ssize_t ret = 0;
        off_t orig_offset = stream->out_fd_offset;
        int fd = stream->wait_fd;
        int outfd = stream->out_fd;
@@ -90,11 +90,11 @@ end:
  *
  * Returns the number of bytes spliced.
  */
-int lttng_kconsumer_on_read_subbuffer_splice(
+ssize_t lttng_kconsumer_on_read_subbuffer_splice(
                struct lttng_consumer_local_data *ctx,
                struct lttng_consumer_stream *stream, unsigned long len)
 {
-       long ret = 0;
+       ssize_t ret = 0;
        loff_t offset = 0;
        off_t orig_offset = stream->out_fd_offset;
        int fd = stream->wait_fd;
@@ -105,7 +105,7 @@ int lttng_kconsumer_on_read_subbuffer_splice(
                                (unsigned long)offset, fd);
                ret = splice(fd, &offset, ctx->consumer_thread_pipe[1], NULL, len,
                                SPLICE_F_MOVE | SPLICE_F_MORE);
-               DBG("splice chan to pipe ret %ld", ret);
+               DBG("splice chan to pipe ret %zd", ret);
                if (ret < 0) {
                        errno = -ret;
                        perror("Error in relay splice");
@@ -114,7 +114,7 @@ int lttng_kconsumer_on_read_subbuffer_splice(
 
                ret = splice(ctx->consumer_thread_pipe[0], NULL, outfd, NULL, ret,
                                SPLICE_F_MOVE | SPLICE_F_MORE);
-               DBG("splice pipe to file %ld", ret);
+               DBG("splice pipe to file %zd", ret);
                if (ret < 0) {
                        errno = -ret;
                        perror("Error in file splice");
@@ -307,12 +307,12 @@ end_nosignal:
 /*
  * Consume data on a file descriptor and write it on a trace file.
  */
-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)
 {
        unsigned long len;
        int err;
-       long ret = 0;
+       ssize_t ret = 0;
        int infd = stream->wait_fd;
 
        DBG("In read_subbuffer (infd : %d)", infd);