core: Add debug statements to help trace transfers

Signed-off-by: Chris Dickens <christopher.a.dickens@gmail.com>

diff --git a/libusb/io.c b/libusb/io.c
index 5ad883d..4ea6ad2 100644 (file)
--- a/libusb/io.c
+++ b/libusb/io.c
@@ -1304,6 +1304,7 @@ DEFAULT_VISIBILITY
 struct libusb_transfer * LIBUSB_CALL libusb_alloc_transfer(
        int iso_packets)
 {
+       struct libusb_transfer *transfer;
        size_t os_alloc_size = usbi_backend->transfer_priv_size
                + (usbi_backend->add_iso_packet_size * iso_packets);
        size_t alloc_size = sizeof(struct usbi_transfer)
@@ -1316,7 +1317,9 @@ struct libusb_transfer * LIBUSB_CALL libusb_alloc_transfer(
 
        itransfer->num_iso_packets = iso_packets;
        usbi_mutex_init(&itransfer->lock, NULL);
-       return USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
+       transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
+       usbi_dbg("transfer %p", transfer);
+       return transfer;
 }
 
 /** \ingroup asyncio
@@ -1342,6 +1345,7 @@ void API_EXPORTED libusb_free_transfer(struct libusb_transfer *transfer)
        if (!transfer)
                return;
 
+       usbi_dbg("transfer %p", transfer);
        if (transfer->flags & LIBUSB_TRANSFER_FREE_BUFFER && transfer->buffer)
                free(transfer->buffer);
 
@@ -1425,6 +1429,7 @@ int API_EXPORTED libusb_submit_transfer(struct libusb_transfer *transfer)
                LIBUSB_TRANSFER_TO_USBI_TRANSFER(transfer);
        int r;
 
+       usbi_dbg("transfer %p", transfer);
        usbi_mutex_lock(&ctx->flying_transfers_lock);
        usbi_mutex_lock(&itransfer->lock);
        itransfer->transferred = 0;
@@ -1472,7 +1477,7 @@ int API_EXPORTED libusb_cancel_transfer(struct libusb_transfer *transfer)
                LIBUSB_TRANSFER_TO_USBI_TRANSFER(transfer);
        int r;
 
-       usbi_dbg("");
+       usbi_dbg("transfer %p", transfer );
        usbi_mutex_lock(&itransfer->lock);
        r = usbi_backend->cancel_transfer(itransfer);
        if (r < 0) {

diff --git a/libusb/version_nano.h b/libusb/version_nano.h
index dd9d603..b2e9924 100644 (file)
--- a/libusb/version_nano.h
+++ b/libusb/version_nano.h
@@ -1 +1 @@
-#define LIBUSB_NANO 10943
+#define LIBUSB_NANO 10944