diff options
| -rw-r--r-- | tools/libvchan/io.c | 23 |
1 files changed, 0 insertions, 23 deletions
diff --git a/tools/libvchan/io.c b/tools/libvchan/io.c index 1b2e94a6e7..3c8d236e52 100644 --- a/tools/libvchan/io.c +++ b/tools/libvchan/io.c @@ -49,11 +49,6 @@ #define PAGE_SIZE 4096 #endif -// allow vchan data to be easily observed in strace by doing a -// writev() to FD -1 with the data being read/written. -#ifndef VCHAN_DEBUG -#define VCHAN_DEBUG 0 -#endif static inline uint32_t rd_prod(struct libxenvchan *ctrl) { @@ -186,15 +181,6 @@ static int do_send(struct libxenvchan *ctrl, const void *data, size_t size) { int real_idx = wr_prod(ctrl) & (wr_ring_size(ctrl) - 1); int avail_contig = wr_ring_size(ctrl) - real_idx; - if (VCHAN_DEBUG) { - char metainfo[32]; - struct iovec iov[2]; - iov[0].iov_base = metainfo; - iov[0].iov_len = snprintf(metainfo, 32, "vchan@%p wr", ctrl); - iov[1].iov_base = (void *)data; - iov[1].iov_len = size; - writev(-1, iov, 2); - } if (avail_contig > size) avail_contig = size; xen_mb(); /* read indexes /then/ write data */ @@ -277,15 +263,6 @@ static int do_recv(struct libxenvchan *ctrl, void *data, size_t size) } xen_mb(); /* consume /then/ notify */ rd_cons(ctrl) += size; - if (VCHAN_DEBUG) { - char metainfo[32]; - struct iovec iov[2]; - iov[0].iov_base = metainfo; - iov[0].iov_len = snprintf(metainfo, 32, "vchan@%p rd", ctrl); - iov[1].iov_base = data; - iov[1].iov_len = size; - writev(-1, iov, 2); - } if (send_notify(ctrl, VCHAN_NOTIFY_READ)) return -1; return size; |