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-rw-r--r--libusb/os/windows_compat.c60
-rw-r--r--libusb/os/windows_compat.h5
-rw-r--r--libusb/os/windows_usb.c23
3 files changed, 44 insertions, 44 deletions
diff --git a/libusb/os/windows_compat.c b/libusb/os/windows_compat.c
index 4ff0c4f..a191e03 100644
--- a/libusb/os/windows_compat.c
+++ b/libusb/os/windows_compat.c
@@ -29,26 +29,26 @@
* For USB pollable async I/O, you would typically:
* - obtain a Windows HANDLE to a file or device that has been opened in
* OVERLAPPED mode
- * - call create_fd_for_poll with this handle to obtain a custom fd.
+ * - call _libusb_create_fd with this handle to obtain a custom fd.
* Note that if you need simultaneous R/W access, you need to call create_fd
* twice, once in _O_RDONLY and once in _O_WRONLY mode to obtain 2 separate
* pollable fds
* - leave the core functions call the poll routine and flag POLLIN/POLLOUT
*
* For pipe pollable synchronous I/O (read end polling only), you would:
- * - create an anonymous pipe with pipe_for_poll to obtain 2 fds (r & w)
- * - use write_for_poll / read_for_poll to write to either end of the pipe
+ * - create an anonymous pipe with _libusb_pipe to obtain 2 fds (r & w)
+ * - use _libusb_write / _libusb_read to write to either end of the pipe
* - use poll to check for data to read
- * Note that the read_for_poll/write_for_poll function actually perform
+ * Note that the _libusb_read/_libusb_write function actually perform
* asynchronous I/O internally, and could potentially be modified to support
* O_NON_BLOCK
*
- * The way the polling on read_for_poll works is by splitting all read I/O
+ * The way the polling on _libusb_read works is by splitting all read I/O
* into a dual 1 byte/n-1 bytes asynchronous read operation.
* The 1 byte data (called the marker), is always armed for asynchronous
* readout, so that as soon as data becomes available, an OVERLAPPED event
* will be flagged, which poll can report.
- * Then during the read_for_poll routine itself, this 1 byte marker is copied
+ * Then during the _libusb_read routine itself, this 1 byte marker is copied
* to the buffer, along with the rest of the data.
*
* Note that, since most I/O is buffered, being notified when only the first
@@ -56,7 +56,7 @@
* rest of the data should be available in system buffers by the time read
* is called.
*
- * Also note that if you don't use read_for_poll to read inbound data, but
+ * Also note that if you don't use _libusb_read to read inbound data, but
* use the OVERLAPPED directly (which is what we do in the USB async I/O
* functions), the marker is not used at all.
*/
@@ -129,7 +129,7 @@ struct winfd poll_fd[MAX_FDS];
// internal fd data
struct {
CRITICAL_SECTION mutex; // lock for fds
- BYTE marker; // 1st byte of a read_for_poll operation gets stored here
+ BYTE marker; // 1st byte of a _libusb_read operation gets stored here
} _poll_fd[MAX_FDS];
@@ -386,7 +386,7 @@ out1:
* read and one for write. Using a single R/W fd is unsupported and will
* produce unexpected results
*/
-struct winfd create_fd_for_poll(HANDLE handle, int access_mode)
+struct winfd _libusb_create_fd(HANDLE handle, int access_mode)
{
int i, fd;
struct winfd wfd = INVALID_WINFD;
@@ -399,7 +399,7 @@ struct winfd create_fd_for_poll(HANDLE handle, int access_mode)
}
if ((access_mode != _O_RDONLY) && (access_mode != _O_WRONLY)) {
- printb("create_fd_for_poll: only one of _O_RDONLY or _O_WRONLY are supported.\n"
+ printb("_libusb_create_fd: only one of _O_RDONLY or _O_WRONLY are supported.\n"
"If you want to poll for R/W simultaneously, create multiple fds from the same handle.\n");
return INVALID_WINFD;
}
@@ -461,7 +461,7 @@ void _free_index(int index)
*
* Note that the associated Windows handle is not closed by this call
*/
-void free_fd_for_poll(int fd)
+void _libusb_free_fd(int fd)
{
int index;
@@ -584,7 +584,7 @@ int _libusb_poll(struct pollfd *fds, unsigned int nfds, int timeout)
if ((fds[i].events & ~POLLIN) && (!(fds[i].events & POLLOUT))) {
fds[i].revents |= POLLERR;
errno = EACCES;
- printb("poll: unsupported set of events\n");
+ printb("_libusb_poll: unsupported set of events\n");
return -1;
}
@@ -596,7 +596,7 @@ int _libusb_poll(struct pollfd *fds, unsigned int nfds, int timeout)
if (index >= 0) {
LeaveCriticalSection(&_poll_fd[index].mutex);
}
- printb("poll: invalid fd\n");
+ printb("_libusb_poll: invalid fd\n");
return -1;
}
@@ -604,7 +604,7 @@ int _libusb_poll(struct pollfd *fds, unsigned int nfds, int timeout)
if ((fds[i].events & POLLIN) && (poll_fd[index].rw != RW_READ)) {
fds[i].revents |= POLLNVAL | POLLERR;
errno = EBADF;
- printb("poll: attempted POLLIN on fd[%d] without READ access\n", i);
+ printb("_libusb_poll: attempted POLLIN on fd[%d] without READ access\n", i);
LeaveCriticalSection(&_poll_fd[index].mutex);
return -1;
}
@@ -612,12 +612,12 @@ int _libusb_poll(struct pollfd *fds, unsigned int nfds, int timeout)
if ((fds[i].events & POLLOUT) && (poll_fd[index].rw != RW_WRITE)) {
fds[i].revents |= POLLNVAL | POLLERR;
errno = EBADF;
- printb("poll: attempted POLLOUT on fd[%d] without WRITE access\n", i);
+ printb("_libusb_poll: attempted POLLOUT on fd[%d] without WRITE access\n", i);
LeaveCriticalSection(&_poll_fd[index].mutex);
return -1;
}
- printb("poll: fd[%d]=%d (overlapped = %p) got events %04X\n", i, poll_fd[index].fd, poll_fd[index].overlapped, fds[i].events);
+ printb("_libusb_poll: fd[%d]=%d (overlapped = %p) got events %04X\n", i, poll_fd[index].fd, poll_fd[index].overlapped, fds[i].events);
// The following macro only works if overlapped I/O was reported pending
if ( (HasOverlappedIoCompleted(poll_fd[index].overlapped))
@@ -639,7 +639,7 @@ int _libusb_poll(struct pollfd *fds, unsigned int nfds, int timeout)
// If nothing was triggered, wait on all fds that require it
if (nb_handles_to_wait_on != 0) {
- printb("poll: starting %d ms wait for %d handles...\n", timeout, (int)nb_handles_to_wait_on);
+ printb("_libusb_poll: starting %d ms wait for %d handles...\n", timeout, (int)nb_handles_to_wait_on);
ret = WaitForMultipleObjects(nb_handles_to_wait_on, handles_to_wait_on,
FALSE, (timeout==-1)?INFINITE:(DWORD)timeout);
@@ -726,11 +726,11 @@ ssize_t _libusb_write(int fd, const void *buf, size_t count)
// For sync mode, we shouldn't get pending async write I/O
if (!HasOverlappedIoCompleted(poll_fd[index].overlapped)) {
- printb("write_for_poll: previous write I/O was flagged pending!\n");
+ printb("_libusb_write: previous write I/O was flagged pending!\n");
CancelIo(poll_fd[index].handle);
}
- printb("write_for_poll: writing %d bytes to fd=%d\n", count, poll_fd[index].fd);
+ printb("_libusb_write: writing %d bytes to fd=%d\n", count, poll_fd[index].fd);
reset_overlapped(poll_fd[index].overlapped);
if (!WriteFile(poll_fd[index].handle, buf, (DWORD)count, &wr_count, poll_fd[index].overlapped)) {
@@ -744,7 +744,7 @@ ssize_t _libusb_write(int fd, const void *buf, size_t count)
errno = 0;
goto out;
} else {
- printb("write_for_poll: GetOverlappedResult failed with error %d\n", (int)GetLastError());
+ printb("_libusb_write: GetOverlappedResult failed with error %d\n", (int)GetLastError());
errno = EIO;
goto out;
}
@@ -754,7 +754,7 @@ ssize_t _libusb_write(int fd, const void *buf, size_t count)
}
} else {
// I/O started and failed
- printb("write_for_poll: WriteFile failed with error %d\n", (int)GetLastError());
+ printb("_libusb_write: WriteFile failed with error %d\n", (int)GetLastError());
errno = EIO;
goto out;
}
@@ -806,7 +806,7 @@ ssize_t _libusb_read(int fd, void *buf, size_t count)
// still waiting for completion => force completion
if (!HasOverlappedIoCompleted(poll_fd[index].overlapped)) {
if (WaitForSingleObject(poll_fd[index].overlapped->hEvent, INFINITE) != WAIT_OBJECT_0) {
- printb("read_for_poll: waiting for marker failed: %d\n", (int)GetLastError());
+ printb("_libusb_read: waiting for marker failed: %d\n", (int)GetLastError());
errno = EIO;
goto out;
}
@@ -815,19 +815,19 @@ ssize_t _libusb_read(int fd, void *buf, size_t count)
// Find out if we've read the first byte
if (!GetOverlappedResult(poll_fd[index].handle, poll_fd[index].overlapped, &rd_count, FALSE)) {
if (GetLastError() != ERROR_MORE_DATA) {
- printb("read_for_poll: readout of marker failed: %d\n", (int)GetLastError());
+ printb("_libusb_read: readout of marker failed: %d\n", (int)GetLastError());
errno = EIO;
goto out;
} else {
- printb("read_for_poll: readout of marker reported more data\n");
+ printb("_libusb_read: readout of marker reported more data\n");
}
}
- printb("read_for_poll: count = %d, rd_count(marker) = %d\n", count, (int)rd_count);
+ printb("_libusb_read: count = %d, rd_count(marker) = %d\n", count, (int)rd_count);
// We should have our marker by now
if (rd_count != 1) {
- printb("read_for_poll: unexpected number of bytes for marker (%d)\n", (int)rd_count);
+ printb("_libusb_read: unexpected number of bytes for marker (%d)\n", (int)rd_count);
errno = EIO;
goto out;
}
@@ -841,22 +841,22 @@ ssize_t _libusb_read(int fd, void *buf, size_t count)
if(GetLastError() == ERROR_IO_PENDING) {
if (!GetOverlappedResult(poll_fd[index].handle, poll_fd[index].overlapped, &rd_count, TRUE)) {
// TODO: handle more data!
- printb("read_for_poll: readout of supplementary data failed: %d\n", (int)GetLastError());
+ printb("_libusb_read: readout of supplementary data failed: %d\n", (int)GetLastError());
errno = EIO;
goto out;
}
} else {
- printb("read_for_poll: could not start blocking read of supplementary: %d\n", (int)GetLastError());
+ printb("_libusb_read: could not start blocking read of supplementary: %d\n", (int)GetLastError());
errno = EIO;
goto out;
}
}
// If ReadFile completed synchronously, we're fine too
- printb("read_for_poll: rd_count(supplementary ) = %d\n", (int)rd_count);
+ printb("_libusb_read: rd_count(supplementary ) = %d\n", (int)rd_count);
if ((rd_count+1) != count) {
- printb("read_for_poll: wanted %d-1, got %d\n", count, (int)rd_count);
+ printb("_libusb_read: wanted %d-1, got %d\n", count, (int)rd_count);
errno = EIO;
goto out;
}
diff --git a/libusb/os/windows_compat.h b/libusb/os/windows_compat.h
index e3fe695..f228782 100644
--- a/libusb/os/windows_compat.h
+++ b/libusb/os/windows_compat.h
@@ -75,9 +75,8 @@ int _libusb_close(int fd);
void init_polling(void);
void exit_polling(void);
-struct winfd create_fd_for_poll(HANDLE handle, int access_mode);
-void free_fd_for_poll(int fd);
-void free_overlapped_for_poll(int fd);
+struct winfd _libusb_create_fd(HANDLE handle, int access_mode);
+void _libusb_free_fd(int fd);
struct winfd fd_to_winfd(int fd);
struct winfd handle_to_winfd(HANDLE handle);
struct winfd overlapped_to_winfd(OVERLAPPED* overlapped);
diff --git a/libusb/os/windows_usb.c b/libusb/os/windows_usb.c
index 860097d..de4e224 100644
--- a/libusb/os/windows_usb.c
+++ b/libusb/os/windows_usb.c
@@ -1641,7 +1641,7 @@ static void windows_clear_transfer_priv(struct usbi_transfer *itransfer)
struct windows_transfer_priv *transfer_priv = usbi_transfer_get_os_priv(itransfer);
usbi_remove_pollfd(ITRANSFER_CTX(itransfer), transfer_priv->pollable_fd.fd);
- free_fd_for_poll(transfer_priv->pollable_fd.fd);
+ _libusb_free_fd(transfer_priv->pollable_fd.fd);
}
static int submit_bulk_transfer(struct usbi_transfer *itransfer)
@@ -1839,7 +1839,7 @@ static int windows_handle_events(struct libusb_context *ctx, struct pollfd *fds,
io_result = GetLastError();
}
usbi_remove_pollfd(ctx, transfer_priv->pollable_fd.fd);
- free_fd_for_poll(transfer_priv->pollable_fd.fd);
+ _libusb_free_fd(transfer_priv->pollable_fd.fd);
windows_handle_callback(transfer, io_result, io_size);
} else {
usbi_err(ctx, "could not find a matching transfer for fd %x", fds[i]);
@@ -2422,7 +2422,7 @@ static int winusb_submit_control_transfer(struct usbi_transfer *itransfer)
usbi_dbg("will use interface %d", current_interface);
winusb_handle = handle_priv->interface_handle[current_interface].api_handle;
- wfd = create_fd_for_poll(winusb_handle, _O_RDONLY);
+ wfd = _libusb_create_fd(winusb_handle, _O_RDONLY);
if (wfd.fd < 0) {
return LIBUSB_ERROR_NO_MEM;
}
@@ -2430,7 +2430,7 @@ static int winusb_submit_control_transfer(struct usbi_transfer *itransfer)
if (!WinUsb_ControlTransfer(wfd.handle, *setup, transfer->buffer + LIBUSB_CONTROL_SETUP_SIZE, size, NULL, wfd.overlapped)) {
if(GetLastError() != ERROR_IO_PENDING) {
usbi_err(ctx, "WinUsb_ControlTransfer failed: %s", windows_error_str(0));
- free_fd_for_poll(wfd.fd);
+ _libusb_free_fd(wfd.fd);
return LIBUSB_ERROR_IO;
}
} else {
@@ -2498,7 +2498,7 @@ static int winusb_submit_bulk_transfer(struct usbi_transfer *itransfer)
winusb_handle = handle_priv->interface_handle[current_interface].api_handle;
direction_in = transfer->endpoint & LIBUSB_ENDPOINT_IN;
- wfd = create_fd_for_poll(winusb_handle, direction_in?_O_RDONLY:_O_WRONLY);
+ wfd = _libusb_create_fd(winusb_handle, direction_in?_O_RDONLY:_O_WRONLY);
if (wfd.fd < 0) {
return LIBUSB_ERROR_NO_MEM;
}
@@ -2513,7 +2513,7 @@ static int winusb_submit_bulk_transfer(struct usbi_transfer *itransfer)
if (!ret) {
if(GetLastError() != ERROR_IO_PENDING) {
usbi_err(ctx, "WinUsb_Pipe Transfer failed: %s", windows_error_str(0));
- free_fd_for_poll(wfd.fd);
+ _libusb_free_fd(wfd.fd);
return LIBUSB_ERROR_IO;
}
} else {
@@ -2620,7 +2620,7 @@ static int winusb_reset_device(struct libusb_device_handle *dev_handle)
{
// Cancel any pollable I/O
usbi_remove_pollfd(ctx, wfd.fd);
- free_fd_for_poll(wfd.fd);
+ _libusb_free_fd(wfd.fd);
wfd = handle_to_winfd(winusb_handle);
}
@@ -3320,7 +3320,7 @@ static int hid_submit_control_transfer(struct usbi_transfer *itransfer)
usbi_dbg("will use interface %d", current_interface);
hid_handle = handle_priv->interface_handle[current_interface].api_handle;
- wfd = create_fd_for_poll(hid_handle, _O_RDONLY);
+ wfd = _libusb_create_fd(hid_handle, _O_RDONLY);
if (wfd.fd < 0) {
return LIBUSB_ERROR_NO_MEM;
}
@@ -3386,7 +3386,7 @@ static int hid_submit_control_transfer(struct usbi_transfer *itransfer)
transfer_priv->pollable_fd = wfd;
transfer_priv->interface_number = (uint8_t)current_interface;
} else {
- free_fd_for_poll(wfd.fd);
+ _libusb_free_fd(wfd.fd);
}
return r;
@@ -3403,6 +3403,7 @@ static int hid_submit_bulk_transfer(struct usbi_transfer *itransfer) {
bool direction_in, ret;
int current_interface;
DWORD size;
+ unsigned char buf[256];
CHECK_HID_AVAILABLE;
@@ -3417,7 +3418,7 @@ static int hid_submit_bulk_transfer(struct usbi_transfer *itransfer) {
hid_handle = handle_priv->interface_handle[current_interface].api_handle;
direction_in = transfer->endpoint & LIBUSB_ENDPOINT_IN;
- wfd = create_fd_for_poll(hid_handle, direction_in?_O_RDONLY:_O_WRONLY);
+ wfd = _libusb_create_fd(hid_handle, direction_in?_O_RDONLY:_O_WRONLY);
if (wfd.fd < 0) {
return LIBUSB_ERROR_NO_MEM;
}
@@ -3432,7 +3433,7 @@ static int hid_submit_bulk_transfer(struct usbi_transfer *itransfer) {
if (!ret) {
if(GetLastError() != ERROR_IO_PENDING) {
usbi_err(ctx, "HID transfer failed: %s", windows_error_str(0));
- free_fd_for_poll(wfd.fd);
+ _libusb_free_fd(wfd.fd);
return LIBUSB_ERROR_IO;
}
} else {
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