* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
/*
* GLib at ftp://ftp.gtk.org/pub/gtk/.
*/
+/*
+ * Bugs that are related to the code in this file:
+ *
+ * Bug 137968 - Sometimes a GIOFunc on Win32 is called with zero condition
+ * http://bugzilla.gnome.org/show_bug.cgi?id=137968
+ *
+ * Bug 324234 - Using g_io_add_watch_full() to wait for connect() to return on a non-blocking socket returns prematurely
+ * http://bugzilla.gnome.org/show_bug.cgi?id=324234
+ *
+ * Bug 331214 - g_io_channel async socket io stalls
+ * http://bugzilla.gnome.org/show_bug.cgi?id=331214
+ *
+ * Bug 338943 - Multiple watches on the same socket
+ * http://bugzilla.gnome.org/show_bug.cgi?id=338943
+ *
+ * Bug 357674 - 2 serious bugs in giowin32.c making glib iochannels useless
+ * http://bugzilla.gnome.org/show_bug.cgi?id=357674
+ *
+ * Bug 425156 - GIOChannel deadlocks on a win32 socket
+ * http://bugzilla.gnome.org/show_bug.cgi?id=425156
+ *
+ * Bug 468910 - giofunc condition=0
+ * http://bugzilla.gnome.org/show_bug.cgi?id=468910
+ *
+ * Bug 500246 - Bug fixes for giowin32
+ * http://bugzilla.gnome.org/show_bug.cgi?id=500246
+ *
+ * Bug 548278 - Async GETs connections are always terminated unexpectedly on windows
+ * http://bugzilla.gnome.org/show_bug.cgi?id=548278
+ *
+ * Bug 548536 - giowin32 problem when adding and removing watches
+ * http://bugzilla.gnome.org/show_bug.cgi?id=548536
+ *
+ * When fixing bugs related to the code in this file, either the above
+ * bugs or others, make sure that the test programs attached to the
+ * above bugs continue to work.
+ */
+
#include "config.h"
#include "glib.h"
#include <stdlib.h>
#include <winsock2.h>
#include <windows.h>
+#include <conio.h>
#include <fcntl.h>
#include <io.h>
#include <process.h>
#include "gstdio.h"
#include "glibintl.h"
-#include "galias.h"
typedef struct _GIOWin32Channel GIOWin32Channel;
typedef struct _GIOWin32Watch GIOWin32Watch;
typedef enum {
G_IO_WIN32_WINDOWS_MESSAGES, /* Windows messages */
+
G_IO_WIN32_FILE_DESC, /* Unix-like file descriptors from
- * _open() or _pipe(). Read with read().
- * Have to create separate thread to read.
+ * _open() or _pipe(), except for
+ * console IO. Separate thread to read
+ * or write.
*/
- G_IO_WIN32_SOCKET /* Sockets. No separate thread */
+
+ G_IO_WIN32_CONSOLE, /* Console IO (usually stdin, stdout, stderr) */
+
+ G_IO_WIN32_SOCKET /* Sockets. No separate thread. */
} GIOWin32ChannelType;
struct _GIOWin32Channel {
gboolean debug;
- /* This is used by G_IO_WIN32_WINDOWS_MESSAGES channels */
- HWND hwnd; /* handle of window, or NULL */
+ /* Field used by G_IO_WIN32_WINDOWS_MESSAGES channels */
+ HWND hwnd; /* Handle of window, or NULL */
- /* Following fields are used by fd channels. */
+ /* Fields used by G_IO_WIN32_FILE_DESC channels. */
CRITICAL_SECTION mutex;
- gboolean running; /* Is reader thread running. FALSE if
- * EOF has been reached.
+ int direction; /* 0 means we read from it,
+ * 1 means we write to it.
+ */
+
+ gboolean running; /* Is reader or writer thread
+ * running. FALSE if EOF has been
+ * reached by the reader thread.
*/
+
gboolean needs_close; /* If the channel has been closed while
* the reader thread was still running.
*/
- guint thread_id; /* If non-NULL has a reader thread, or has
- * had.*/
+
+ guint thread_id; /* If non-NULL the channel has or has
+ * had a reader or writer thread.
+ */
HANDLE data_avail_event;
gushort revents;
- /* Following fields used by fd channels for input */
-
/* Data is kept in a circular buffer. To be able to distinguish between
- * empty and full buffer, we cannot fill it completely, but have to
+ * empty and full buffers, we cannot fill it completely, but have to
* leave a one character gap.
*
* Data available is between indexes rdp and wrp-1 (modulo BUFFER_SIZE).
gint wrp, rdp; /* Buffer indices for writing and reading */
HANDLE space_avail_event;
- /* Following fields used by socket channels */
+ /* Fields used by G_IO_WIN32_SOCKET channels */
int event_mask;
int last_events;
- int event;
+ HANDLE event;
gboolean write_would_have_blocked;
+ gboolean ever_writable;
};
-#define LOCK(mutex) EnterCriticalSection (&mutex)
-#define UNLOCK(mutex) LeaveCriticalSection (&mutex)
-
struct _GIOWin32Watch {
GSource source;
GPollFD pollfd;
g_print ("%sNONBLOCK", bar), bar = "|";
if (flags & G_IO_FLAG_IS_READABLE)
g_print ("%sREADABLE", bar), bar = "|";
- if (flags & G_IO_FLAG_IS_WRITEABLE)
- g_print ("%sWRITEABLE", bar), bar = "|";
+ if (flags & G_IO_FLAG_IS_WRITABLE)
+ g_print ("%sWRITABLE", bar), bar = "|";
if (flags & G_IO_FLAG_IS_SEEKABLE)
g_print ("%sSEEKABLE", bar), bar = "|";
}
return (getenv ("G_IO_WIN32_DEBUG") != NULL);
}
-static char *
-winsock_error_message (int number)
-{
- static char unk[100];
-
- switch (number) {
- case WSAEINTR:
- return "Interrupted function call";
- case WSAEACCES:
- return "Permission denied";
- case WSAEFAULT:
- return "Bad address";
- case WSAEINVAL:
- return "Invalid argument";
- case WSAEMFILE:
- return "Too many open sockets";
- case WSAEWOULDBLOCK:
- return "Resource temporarily unavailable";
- case WSAEINPROGRESS:
- return "Operation now in progress";
- case WSAEALREADY:
- return "Operation already in progress";
- case WSAENOTSOCK:
- return "Socket operation on nonsocket";
- case WSAEDESTADDRREQ:
- return "Destination address required";
- case WSAEMSGSIZE:
- return "Message too long";
- case WSAEPROTOTYPE:
- return "Protocol wrong type for socket";
- case WSAENOPROTOOPT:
- return "Bad protocol option";
- case WSAEPROTONOSUPPORT:
- return "Protocol not supported";
- case WSAESOCKTNOSUPPORT:
- return "Socket type not supported";
- case WSAEOPNOTSUPP:
- return "Operation not supported on transport endpoint";
- case WSAEPFNOSUPPORT:
- return "Protocol family not supported";
- case WSAEAFNOSUPPORT:
- return "Address family not supported by protocol family";
- case WSAEADDRINUSE:
- return "Address already in use";
- case WSAEADDRNOTAVAIL:
- return "Address not available";
- case WSAENETDOWN:
- return "Network interface is not configured";
- case WSAENETUNREACH:
- return "Network is unreachable";
- case WSAENETRESET:
- return "Network dropped connection on reset";
- case WSAECONNABORTED:
- return "Software caused connection abort";
- case WSAECONNRESET:
- return "Connection reset by peer";
- case WSAENOBUFS:
- return "No buffer space available";
- case WSAEISCONN:
- return "Socket is already connected";
- case WSAENOTCONN:
- return "Socket is not connected";
- case WSAESHUTDOWN:
- return "Can't send after socket shutdown";
- case WSAETIMEDOUT:
- return "Connection timed out";
- case WSAECONNREFUSED:
- return "Connection refused";
- case WSAEHOSTDOWN:
- return "Host is down";
- case WSAEHOSTUNREACH:
- return "Host is unreachable";
- case WSAEPROCLIM:
- return "Too many processes";
- case WSASYSNOTREADY:
- return "Network subsystem is unavailable";
- case WSAVERNOTSUPPORTED:
- return "Winsock.dll version out of range";
- case WSANOTINITIALISED:
- return "Successful WSAStartup not yet performed";
- case WSAEDISCON:
- return "Graceful shutdown in progress";
- case WSATYPE_NOT_FOUND:
- return "Class type not found";
- case WSAHOST_NOT_FOUND:
- return "Host not found";
- case WSATRY_AGAIN:
- return "Nonauthoritative host not found";
- case WSANO_RECOVERY:
- return "This is a nonrecoverable error";
- case WSANO_DATA:
- return "Valid name, no data record of requested type";
- case WSA_INVALID_HANDLE:
- return "Specified event object handle is invalid";
- case WSA_INVALID_PARAMETER:
- return "One or more parameters are invalid";
- case WSA_IO_INCOMPLETE:
- return "Overlapped I/O event object not in signaled state";
- case WSA_NOT_ENOUGH_MEMORY:
- return "Insufficient memory available";
- case WSA_OPERATION_ABORTED:
- return "Overlapped operation aborted";
- case WSAEINVALIDPROCTABLE:
- return "Invalid procedure table from service provider";
- case WSAEINVALIDPROVIDER:
- return "Invalid service provider version number";
- case WSAEPROVIDERFAILEDINIT:
- return "Unable to initialize a service provider";
- case WSASYSCALLFAILURE:
- return "System call failure";
- default:
- sprintf (unk, "Unknown WinSock error %d", number);
- return unk;
- }
-}
-
static void
g_io_channel_win32_init (GIOWin32Channel *channel)
{
channel->debug = g_io_win32_get_debug_flag ();
- channel->buffer = NULL;
+
+ InitializeCriticalSection (&channel->mutex);
channel->running = FALSE;
channel->needs_close = FALSE;
channel->thread_id = 0;
channel->data_avail_event = NULL;
channel->revents = 0;
+ channel->buffer = NULL;
channel->space_avail_event = NULL;
+
channel->event_mask = 0;
channel->last_events = 0;
- channel->event = 0;
+ channel->event = NULL;
channel->write_would_have_blocked = FALSE;
- InitializeCriticalSection (&channel->mutex);
+ channel->ever_writable = FALSE;
}
static void
|| !(channel->space_avail_event = CreateEvent (&sec_attrs, FALSE, FALSE, NULL)))
{
gchar *emsg = g_win32_error_message (GetLastError ());
+
g_error ("Error creating event: %s", emsg);
g_free (emsg);
}
{
GIOWin32Channel *channel = parameter;
guchar *buffer;
- guint nbytes;
+ gint nbytes;
g_io_channel_ref ((GIOChannel *)channel);
if (channel->debug)
- g_print ("read_thread %#x: start fd=%d, data_avail=%#x space_avail=%#x\n",
+ g_print ("read_thread %#x: start fd=%d, data_avail=%p space_avail=%p\n",
channel->thread_id,
channel->fd,
- (guint) channel->data_avail_event,
- (guint) channel->space_avail_event);
-
+ channel->data_avail_event,
+ channel->space_avail_event);
+
+ channel->direction = 0;
channel->buffer = g_malloc (BUFFER_SIZE);
channel->rdp = channel->wrp = 0;
channel->running = TRUE;
SetEvent (channel->space_avail_event);
- LOCK (channel->mutex);
+ EnterCriticalSection (&channel->mutex);
while (channel->running)
{
if (channel->debug)
if (channel->debug)
g_print ("read_thread %#x: waiting for space\n",
channel->thread_id);
- UNLOCK (channel->mutex);
+ LeaveCriticalSection (&channel->mutex);
WaitForSingleObject (channel->space_avail_event, INFINITE);
- LOCK (channel->mutex);
+ EnterCriticalSection (&channel->mutex);
if (channel->debug)
g_print ("read_thread %#x: rdp=%d, wrp=%d\n",
channel->thread_id, channel->rdp, channel->wrp);
g_print ("read_thread %#x: calling read() for %d bytes\n",
channel->thread_id, nbytes);
- UNLOCK (channel->mutex);
+ LeaveCriticalSection (&channel->mutex);
nbytes = read (channel->fd, buffer, nbytes);
- LOCK (channel->mutex);
+ EnterCriticalSection (&channel->mutex);
channel->revents = G_IO_IN;
if (nbytes == 0)
g_print ("read_thread %#x: EOF, rdp=%d, wrp=%d, setting data_avail\n",
channel->thread_id, channel->rdp, channel->wrp);
SetEvent (channel->data_avail_event);
- UNLOCK (channel->mutex);
+ LeaveCriticalSection (&channel->mutex);
g_io_channel_unref ((GIOChannel *)channel);
return 0;
}
+static unsigned __stdcall
+write_thread (void *parameter)
+{
+ GIOWin32Channel *channel = parameter;
+ guchar *buffer;
+ gint nbytes;
+
+ g_io_channel_ref ((GIOChannel *)channel);
+
+ if (channel->debug)
+ g_print ("write_thread %#x: start fd=%d, data_avail=%p space_avail=%p\n",
+ channel->thread_id,
+ channel->fd,
+ channel->data_avail_event,
+ channel->space_avail_event);
+
+ channel->direction = 1;
+ channel->buffer = g_malloc (BUFFER_SIZE);
+ channel->rdp = channel->wrp = 0;
+ channel->running = TRUE;
+
+ SetEvent (channel->space_avail_event);
+
+ /* We use the same event objects as for a reader thread, but with
+ * reversed meaning. So, space_avail is used if data is available
+ * for writing, and data_avail is used if space is available in the
+ * write buffer.
+ */
+
+ EnterCriticalSection (&channel->mutex);
+ while (channel->running || channel->rdp != channel->wrp)
+ {
+ if (channel->debug)
+ g_print ("write_thread %#x: rdp=%d, wrp=%d\n",
+ channel->thread_id, channel->rdp, channel->wrp);
+ if (channel->wrp == channel->rdp)
+ {
+ /* Buffer is empty. */
+ if (channel->debug)
+ g_print ("write_thread %#x: resetting space_avail\n",
+ channel->thread_id);
+ ResetEvent (channel->space_avail_event);
+ if (channel->debug)
+ g_print ("write_thread %#x: waiting for data\n",
+ channel->thread_id);
+ channel->revents = G_IO_OUT;
+ SetEvent (channel->data_avail_event);
+ LeaveCriticalSection (&channel->mutex);
+ WaitForSingleObject (channel->space_avail_event, INFINITE);
+
+ EnterCriticalSection (&channel->mutex);
+ if (channel->rdp == channel->wrp)
+ break;
+
+ if (channel->debug)
+ g_print ("write_thread %#x: rdp=%d, wrp=%d\n",
+ channel->thread_id, channel->rdp, channel->wrp);
+ }
+
+ buffer = channel->buffer + channel->rdp;
+ if (channel->rdp < channel->wrp)
+ nbytes = channel->wrp - channel->rdp;
+ else
+ nbytes = BUFFER_SIZE - channel->rdp;
+
+ if (channel->debug)
+ g_print ("write_thread %#x: calling write() for %d bytes\n",
+ channel->thread_id, nbytes);
+
+ LeaveCriticalSection (&channel->mutex);
+ nbytes = write (channel->fd, buffer, nbytes);
+ EnterCriticalSection (&channel->mutex);
+
+ if (channel->debug)
+ g_print ("write_thread %#x: write(%i) returned %d, rdp=%d, wrp=%d\n",
+ channel->thread_id, channel->fd, nbytes, channel->rdp, channel->wrp);
+
+ channel->revents = 0;
+ if (nbytes > 0)
+ channel->revents |= G_IO_OUT;
+ else if (nbytes <= 0)
+ channel->revents |= G_IO_ERR;
+
+ channel->rdp = (channel->rdp + nbytes) % BUFFER_SIZE;
+
+ if (nbytes <= 0)
+ break;
+
+ if (channel->debug)
+ g_print ("write_thread: setting data_avail for thread %#x\n",
+ channel->thread_id);
+ SetEvent (channel->data_avail_event);
+ }
+
+ channel->running = FALSE;
+ if (channel->needs_close)
+ {
+ if (channel->debug)
+ g_print ("write_thread %#x: channel fd %d needs closing\n",
+ channel->thread_id, channel->fd);
+ close (channel->fd);
+ channel->fd = -1;
+ }
+
+ LeaveCriticalSection (&channel->mutex);
+
+ g_io_channel_unref ((GIOChannel *)channel);
+
+ return 0;
+}
+
static void
create_thread (GIOWin32Channel *channel,
GIOCondition condition,
thread_handle = (HANDLE) _beginthreadex (NULL, 0, thread, channel, 0,
&channel->thread_id);
if (thread_handle == 0)
- g_warning (G_STRLOC ": Error creating reader thread: %s",
+ g_warning ("Error creating thread: %s.",
g_strerror (errno));
else if (!CloseHandle (thread_handle))
- g_warning (G_STRLOC ": Error closing thread handle: %s\n",
- g_win32_error_message (GetLastError ()));
+ {
+ gchar *emsg = g_win32_error_message (GetLastError ());
+
+ g_warning ("Error closing thread handle: %s.", emsg);
+ g_free (emsg);
+ }
WaitForSingleObject (channel->space_avail_event, INFINITE);
}
static GIOStatus
buffer_read (GIOWin32Channel *channel,
- guchar *dest,
+ gchar *dest,
gsize count,
gsize *bytes_read,
GError **err)
guint nbytes;
guint left = count;
- LOCK (channel->mutex);
+ EnterCriticalSection (&channel->mutex);
if (channel->debug)
- g_print ("reading from thread %#x %d bytes, rdp=%d, wrp=%d\n",
+ g_print ("reading from thread %#x %" G_GSIZE_FORMAT " bytes, rdp=%d, wrp=%d\n",
channel->thread_id, count, channel->rdp, channel->wrp);
if (channel->wrp == channel->rdp)
{
- UNLOCK (channel->mutex);
+ LeaveCriticalSection (&channel->mutex);
if (channel->debug)
g_print ("waiting for data from thread %#x\n", channel->thread_id);
WaitForSingleObject (channel->data_avail_event, INFINITE);
if (channel->debug)
g_print ("done waiting for data from thread %#x\n", channel->thread_id);
- LOCK (channel->mutex);
+ EnterCriticalSection (&channel->mutex);
if (channel->wrp == channel->rdp && !channel->running)
{
if (channel->debug)
g_print ("wrp==rdp, !running\n");
- UNLOCK (channel->mutex);
+ LeaveCriticalSection (&channel->mutex);
*bytes_read = 0;
return G_IO_STATUS_EOF;
}
nbytes = channel->wrp - channel->rdp;
else
nbytes = BUFFER_SIZE - channel->rdp;
- UNLOCK (channel->mutex);
+ LeaveCriticalSection (&channel->mutex);
nbytes = MIN (left, nbytes);
if (channel->debug)
g_print ("moving %d bytes from thread %#x\n",
memcpy (dest, channel->buffer + channel->rdp, nbytes);
dest += nbytes;
left -= nbytes;
- LOCK (channel->mutex);
+ EnterCriticalSection (&channel->mutex);
channel->rdp = (channel->rdp + nbytes) % BUFFER_SIZE;
if (channel->debug)
g_print ("setting space_avail for thread %#x\n", channel->thread_id);
channel->thread_id);
ResetEvent (channel->data_avail_event);
};
- UNLOCK (channel->mutex);
+ LeaveCriticalSection (&channel->mutex);
/* We have no way to indicate any errors form the actual
* read() or recv() call in the reader thread. Should we have?
return (*bytes_read > 0) ? G_IO_STATUS_NORMAL : G_IO_STATUS_EOF;
}
+
+static GIOStatus
+buffer_write (GIOWin32Channel *channel,
+ const gchar *dest,
+ gsize count,
+ gsize *bytes_written,
+ GError **err)
+{
+ guint nbytes;
+ guint left = count;
+
+ EnterCriticalSection (&channel->mutex);
+ if (channel->debug)
+ g_print ("buffer_write: writing to thread %#x %" G_GSIZE_FORMAT " bytes, rdp=%d, wrp=%d\n",
+ channel->thread_id, count, channel->rdp, channel->wrp);
+
+ if ((channel->wrp + 1) % BUFFER_SIZE == channel->rdp)
+ {
+ /* Buffer is full */
+ if (channel->debug)
+ g_print ("buffer_write: tid %#x: resetting data_avail\n",
+ channel->thread_id);
+ ResetEvent (channel->data_avail_event);
+ if (channel->debug)
+ g_print ("buffer_write: tid %#x: waiting for space\n",
+ channel->thread_id);
+ LeaveCriticalSection (&channel->mutex);
+ WaitForSingleObject (channel->data_avail_event, INFINITE);
+ EnterCriticalSection (&channel->mutex);
+ if (channel->debug)
+ g_print ("buffer_write: tid %#x: rdp=%d, wrp=%d\n",
+ channel->thread_id, channel->rdp, channel->wrp);
+ }
+
+ nbytes = MIN ((channel->rdp + BUFFER_SIZE - channel->wrp - 1) % BUFFER_SIZE,
+ BUFFER_SIZE - channel->wrp);
+
+ LeaveCriticalSection (&channel->mutex);
+ nbytes = MIN (left, nbytes);
+ if (channel->debug)
+ g_print ("buffer_write: tid %#x: writing %d bytes\n",
+ channel->thread_id, nbytes);
+ memcpy (channel->buffer + channel->wrp, dest, nbytes);
+ dest += nbytes;
+ left -= nbytes;
+ EnterCriticalSection (&channel->mutex);
+
+ channel->wrp = (channel->wrp + nbytes) % BUFFER_SIZE;
+ if (channel->debug)
+ g_print ("buffer_write: tid %#x: rdp=%d, wrp=%d, setting space_avail\n",
+ channel->thread_id, channel->rdp, channel->wrp);
+ SetEvent (channel->space_avail_event);
+
+ if ((channel->wrp + 1) % BUFFER_SIZE == channel->rdp)
+ {
+ /* Buffer is full */
+ if (channel->debug)
+ g_print ("buffer_write: tid %#x: resetting data_avail\n",
+ channel->thread_id);
+ ResetEvent (channel->data_avail_event);
+ }
+
+ LeaveCriticalSection (&channel->mutex);
+
+ /* We have no way to indicate any errors form the actual
+ * write() call in the writer thread. Should we have?
+ */
+ *bytes_written = count - left;
+ return (*bytes_written > 0) ? G_IO_STATUS_NORMAL : G_IO_STATUS_EOF;
+}
+
+
static gboolean
g_io_win32_prepare (GSource *source,
gint *timeout)
*timeout = -1;
+ if (channel->debug)
+ g_print ("g_io_win32_prepare: source=%p channel=%p", source, channel);
+
switch (channel->type)
{
case G_IO_WIN32_WINDOWS_MESSAGES:
+ if (channel->debug)
+ g_print (" MSG");
+ break;
+
+ case G_IO_WIN32_CONSOLE:
+ if (channel->debug)
+ g_print (" CON");
break;
case G_IO_WIN32_FILE_DESC:
if (channel->debug)
- g_print ("g_io_win32_prepare: for thread %#x buffer_condition:{%s}\n"
- " watch->pollfd.events:{%s} watch->pollfd.revents:{%s} channel->revents:{%s}\n",
+ g_print (" FD thread=%#x buffer_condition:{%s}"
+ "\n watch->pollfd.events:{%s} watch->pollfd.revents:{%s} channel->revents:{%s}",
channel->thread_id, condition_to_string (buffer_condition),
condition_to_string (watch->pollfd.events),
condition_to_string (watch->pollfd.revents),
condition_to_string (channel->revents));
- LOCK (channel->mutex);
- if (channel->running && channel->wrp == channel->rdp)
+ EnterCriticalSection (&channel->mutex);
+ if (channel->running)
{
- if (channel->debug)
- g_print ("g_io_win32_prepare: for thread %#x, setting channel->revents = 0\n",
- channel->thread_id);
- channel->revents = 0;
+ if (channel->direction == 0 && channel->wrp == channel->rdp)
+ {
+ if (channel->debug)
+ g_print ("\n setting revents=0");
+ channel->revents = 0;
+ }
}
- UNLOCK (channel->mutex);
+ else
+ {
+ if (channel->direction == 1
+ && (channel->wrp + 1) % BUFFER_SIZE == channel->rdp)
+ {
+ if (channel->debug)
+ g_print ("\n setting revents=0");
+ channel->revents = 0;
+ }
+ }
+ LeaveCriticalSection (&channel->mutex);
break;
case G_IO_WIN32_SOCKET:
+ if (channel->debug)
+ g_print (" SOCK");
event_mask = 0;
if (watch->condition & G_IO_IN)
event_mask |= (FD_READ | FD_ACCEPT);
if (watch->condition & G_IO_OUT)
event_mask |= (FD_WRITE | FD_CONNECT);
- if (watch->condition & G_IO_HUP)
- event_mask |= FD_CLOSE;
+ event_mask |= FD_CLOSE;
- if (channel->event_mask != event_mask /* || channel->event != watch->pollfd.fd*/)
+ if (channel->event_mask != event_mask)
{
if (channel->debug)
- g_print ("g_io_win32_prepare: WSAEventSelect(%d, %#x, {%s}\n",
- channel->fd, watch->pollfd.fd,
+ g_print ("\n WSAEventSelect(%d,%p,{%s})",
+ channel->fd, (HANDLE) watch->pollfd.fd,
event_mask_to_string (event_mask));
if (WSAEventSelect (channel->fd, (HANDLE) watch->pollfd.fd,
event_mask) == SOCKET_ERROR)
- ; /* What? */
+ if (channel->debug)
+ {
+ gchar *emsg = g_win32_error_message (WSAGetLastError ());
+
+ g_print (" failed: %s", emsg);
+ g_free (emsg);
+ }
channel->event_mask = event_mask;
-#if 0
- channel->event = watch->pollfd.fd;
-#endif
+
+ if (channel->debug)
+ g_print ("\n setting last_events=0");
channel->last_events = 0;
+
+ if ((event_mask & FD_WRITE) &&
+ channel->ever_writable &&
+ !channel->write_would_have_blocked)
+ {
+ if (channel->debug)
+ g_print (" WSASetEvent(%p)", (WSAEVENT) watch->pollfd.fd);
+ WSASetEvent ((WSAEVENT) watch->pollfd.fd);
+ }
}
break;
g_assert_not_reached ();
abort ();
}
+ if (channel->debug)
+ g_print ("\n");
+
return ((watch->condition & buffer_condition) == watch->condition);
}
GIOCondition buffer_condition = g_io_channel_get_buffer_condition (watch->channel);
WSANETWORKEVENTS events;
+ if (channel->debug)
+ g_print ("g_io_win32_check: source=%p channel=%p", source, channel);
+
switch (channel->type)
{
case G_IO_WIN32_WINDOWS_MESSAGES:
+ if (channel->debug)
+ g_print (" MSG\n");
return (PeekMessage (&msg, channel->hwnd, 0, 0, PM_NOREMOVE));
case G_IO_WIN32_FILE_DESC:
if (channel->debug)
- g_print ("g_io_win32_check: for thread %#x buffer_condition=%s\n"
+ g_print (" FD thread=%#x buffer_condition=%s\n"
" watch->pollfd.events={%s} watch->pollfd.revents={%s} channel->revents={%s}\n",
channel->thread_id, condition_to_string (buffer_condition),
condition_to_string (watch->pollfd.events),
return ((watch->pollfd.revents | buffer_condition) & watch->condition);
+ case G_IO_WIN32_CONSOLE:
+ if (channel->debug)
+ g_print (" CON\n");
+ if (watch->channel->is_writeable)
+ return TRUE;
+ else if (watch->channel->is_readable)
+ {
+ INPUT_RECORD buffer;
+ DWORD n;
+ if (PeekConsoleInput ((HANDLE) watch->pollfd.fd, &buffer, 1, &n) &&
+ n == 1)
+ {
+ /* _kbhit() does quite complex processing to find out
+ * whether at least one of the key events pending corresponds
+ * to a "real" character that can be read.
+ */
+ if (_kbhit ())
+ return TRUE;
+
+ /* Discard all other kinds of events */
+ ReadConsoleInput ((HANDLE) watch->pollfd.fd, &buffer, 1, &n);
+ }
+ }
+ return FALSE;
+
case G_IO_WIN32_SOCKET:
+ if (channel->debug)
+ g_print (" SOCK");
if (channel->last_events & FD_WRITE)
{
if (channel->debug)
- g_print ("g_io_win32_check: sock=%d event=%#x last_events has FD_WRITE\n",
- channel->fd, watch->pollfd.fd);
+ g_print (" sock=%d event=%p last_events has FD_WRITE",
+ channel->fd, (HANDLE) watch->pollfd.fd);
}
else
{
WSAEnumNetworkEvents (channel->fd, 0, &events);
if (channel->debug)
- g_print ("g_io_win32_check: WSAEnumNetworkEvents (%d, %#x) revents={%s} condition={%s} events={%s}\n",
- channel->fd, watch->pollfd.fd,
+ g_print ("\n revents={%s} condition={%s}"
+ "\n WSAEnumNetworkEvents(%d,0) sets events={%s}",
condition_to_string (watch->pollfd.revents),
condition_to_string (watch->condition),
+ channel->fd,
event_mask_to_string (events.lNetworkEvents));
if (watch->pollfd.revents != 0 &&
{
channel->event_mask = 0;
if (channel->debug)
- g_print ("g_io_win32_check: WSAEventSelect(%d, %#x, {})\n",
- channel->fd, watch->pollfd.fd);
+ g_print ("\n WSAEventSelect(%d,%p,{})",
+ channel->fd, (HANDLE) watch->pollfd.fd);
WSAEventSelect (channel->fd, (HANDLE) watch->pollfd.fd, 0);
if (channel->debug)
- g_print ("g_io_win32_check: ResetEvent(%#x)\n",
- watch->pollfd.fd);
+ g_print (" ResetEvent(%p)",
+ (HANDLE) watch->pollfd.fd);
ResetEvent ((HANDLE) watch->pollfd.fd);
}
+ else if (events.lNetworkEvents & FD_WRITE)
+ channel->ever_writable = TRUE;
channel->last_events = events.lNetworkEvents;
}
+
watch->pollfd.revents = 0;
if (channel->last_events & (FD_READ | FD_ACCEPT))
watch->pollfd.revents |= G_IO_IN;
- if (channel->last_events & (FD_WRITE | FD_CONNECT))
+
+ if (channel->last_events & FD_WRITE)
+ watch->pollfd.revents |= G_IO_OUT;
+ else
+ {
+ /* We have called WSAEnumNetworkEvents() above but it didn't
+ * set FD_WRITE.
+ */
+ if (events.lNetworkEvents & FD_CONNECT)
+ {
+ if (events.iErrorCode[FD_CONNECT_BIT] == 0)
+ watch->pollfd.revents |= G_IO_OUT;
+ else
+ watch->pollfd.revents |= (G_IO_HUP | G_IO_ERR);
+ }
+ if (watch->pollfd.revents == 0 && (channel->last_events & (FD_CLOSE)))
+ watch->pollfd.revents |= G_IO_HUP;
+ }
+
+ /* Regardless of WSAEnumNetworkEvents() result, if watching for
+ * writability, and if we have ever got a FD_WRITE event, and
+ * unless last write would have blocked, set G_IO_OUT. But never
+ * set both G_IO_OUT and G_IO_HUP.
+ */
+ if (!(watch->pollfd.revents & G_IO_HUP) &&
+ channel->ever_writable &&
+ !channel->write_would_have_blocked &&
+ (channel->event_mask & FD_WRITE))
watch->pollfd.revents |= G_IO_OUT;
- if (watch->pollfd.revents == 0 && (channel->last_events & (FD_CLOSE)))
- watch->pollfd.revents |= G_IO_HUP;
- if (!channel->write_would_have_blocked && (channel->event_mask & FD_WRITE))
- watch->pollfd.revents |= G_IO_OUT; /* This sucks but... */
+ if (channel->debug)
+ g_print ("\n revents={%s} retval={%s}\n",
+ condition_to_string (watch->pollfd.revents),
+ condition_to_string ((watch->pollfd.revents | buffer_condition) & watch->condition));
return ((watch->pollfd.revents | buffer_condition) & watch->condition);
if (!func)
{
- g_warning (G_STRLOC ": GIOWin32Watch dispatched without callback\n"
+ g_warning ("IO Watch dispatched without callback\n"
"You must call g_source_connect().");
return FALSE;
}
GIOWin32Watch *watch = (GIOWin32Watch *)source;
GIOWin32Channel *channel = (GIOWin32Channel *)watch->channel;
+ if (channel->debug)
+ g_print ("g_io_win32_finalize: source=%p channel=%p", source, channel);
+
switch (channel->type)
{
case G_IO_WIN32_WINDOWS_MESSAGES:
+ if (channel->debug)
+ g_print (" MSG");
+ break;
+
+ case G_IO_WIN32_CONSOLE:
+ if (channel->debug)
+ g_print (" CON");
break;
case G_IO_WIN32_FILE_DESC:
- LOCK (channel->mutex);
if (channel->debug)
- g_print ("g_io_win32_finalize: channel with thread %#x\n",
- channel->thread_id);
- UNLOCK (channel->mutex);
+ g_print (" FD thread=%#x", channel->thread_id);
break;
case G_IO_WIN32_SOCKET:
if (channel->debug)
- g_print ("g_io_win32_finalize: channel is for sock=%d\n", channel->fd);
-#if 0
- CloseHandle ((HANDLE) watch->pollfd.fd);
- channel->event = 0;
- channel->event_mask = 0;
-#endif
+ g_print (" SOCK sock=%d", channel->fd);
break;
default:
g_assert_not_reached ();
abort ();
}
+ if (channel->debug)
+ g_print ("\n");
g_io_channel_unref (watch->channel);
}
if (count < sizeof (MSG))
{
- g_set_error (err, G_IO_CHANNEL_ERROR, G_IO_CHANNEL_ERROR_INVAL,
- "Incorrect message size"); /* Informative enough error message? */
+ g_set_error_literal (err, G_IO_CHANNEL_ERROR, G_IO_CHANNEL_ERROR_INVAL,
+ "Incorrect message size"); /* Informative enough error message? */
return G_IO_STATUS_ERROR;
}
if (win32_channel->debug)
- g_print ("g_io_win32_msg_read: for %#x\n",
- (guint) win32_channel->hwnd);
+ g_print ("g_io_win32_msg_read: channel=%p hwnd=%p\n",
+ channel, win32_channel->hwnd);
if (!PeekMessage (&msg, win32_channel->hwnd, 0, 0, PM_REMOVE))
return G_IO_STATUS_AGAIN;
if (count != sizeof (MSG))
{
- g_set_error (err, G_IO_CHANNEL_ERROR, G_IO_CHANNEL_ERROR_INVAL,
- "Incorrect message size"); /* Informative enough error message? */
+ g_set_error_literal (err, G_IO_CHANNEL_ERROR, G_IO_CHANNEL_ERROR_INVAL,
+ "Incorrect message size"); /* Informative enough error message? */
return G_IO_STATUS_ERROR;
}
if (!PostMessage (win32_channel->hwnd, msg.message, msg.wParam, msg.lParam))
{
gchar *emsg = g_win32_error_message (GetLastError ());
- g_set_error (err, G_IO_CHANNEL_ERROR, G_IO_CHANNEL_ERROR_FAILED, emsg);
+
+ g_set_error_literal (err, G_IO_CHANNEL_ERROR, G_IO_CHANNEL_ERROR_FAILED, emsg);
g_free (emsg);
+
return G_IO_STATUS_ERROR;
}
GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
if (win32_channel->debug)
- g_print ("g_io_win32_free channel fd=%d\n", win32_channel->fd);
+ g_print ("g_io_win32_free channel=%p fd=%d\n", channel, win32_channel->fd);
- if (win32_channel->data_avail_event)
- CloseHandle (win32_channel->data_avail_event);
- if (win32_channel->space_avail_event)
- CloseHandle (win32_channel->space_avail_event);
- if (win32_channel->type == G_IO_WIN32_SOCKET)
- WSAEventSelect (win32_channel->fd, NULL, 0);
DeleteCriticalSection (&win32_channel->mutex);
+ if (win32_channel->data_avail_event)
+ if (!CloseHandle (win32_channel->data_avail_event))
+ if (win32_channel->debug)
+ {
+ gchar *emsg = g_win32_error_message (GetLastError ());
+
+ g_print (" CloseHandle(%p) failed: %s\n",
+ win32_channel->data_avail_event, emsg);
+ g_free (emsg);
+ }
+
g_free (win32_channel->buffer);
+
+ if (win32_channel->space_avail_event)
+ if (!CloseHandle (win32_channel->space_avail_event))
+ if (win32_channel->debug)
+ {
+ gchar *emsg = g_win32_error_message (GetLastError ());
+
+ g_print (" CloseHandle(%p) failed: %s\n",
+ win32_channel->space_avail_event, emsg);
+ g_free (emsg);
+ }
+
+ if (win32_channel->type == G_IO_WIN32_SOCKET &&
+ win32_channel->fd != -1)
+ if (WSAEventSelect (win32_channel->fd, NULL, 0) == SOCKET_ERROR)
+ if (win32_channel->debug)
+ {
+ gchar *emsg = g_win32_error_message (WSAGetLastError ());
+
+ g_print (" WSAEventSelect(%d,NULL,{}) failed: %s\n",
+ win32_channel->fd, emsg);
+ g_free (emsg);
+ }
+
+ if (win32_channel->event)
+ if (!WSACloseEvent (win32_channel->event))
+ if (win32_channel->debug)
+ {
+ gchar *emsg = g_win32_error_message (WSAGetLastError ());
+
+ g_print (" WSACloseEvent(%p) failed: %s\n",
+ win32_channel->event, emsg);
+ g_free (emsg);
+ }
+
g_free (win32_channel);
}
GSource *source;
source = g_source_new (&g_io_watch_funcs, sizeof (GIOWin32Watch));
+ g_source_set_name (source, "GIOChannel (Win32)");
watch = (GIOWin32Watch *)source;
watch->channel = channel;
watch->condition = condition;
- watch->pollfd.fd = G_WIN32_MSG_HANDLE;
+ watch->pollfd.fd = (gintptr) G_WIN32_MSG_HANDLE;
watch->pollfd.events = condition;
g_source_add_poll (source, &watch->pollfd);
}
static GIOStatus
-g_io_win32_fd_read (GIOChannel *channel,
- gchar *buf,
- gsize count,
- gsize *bytes_read,
- GError **err)
+g_io_win32_fd_and_console_read (GIOChannel *channel,
+ gchar *buf,
+ gsize count,
+ gsize *bytes_read,
+ GError **err)
{
GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
gint result;
if (win32_channel->debug)
- g_print ("g_io_win32_fd_read: fd=%d count=%d\n",
+ g_print ("g_io_win32_fd_read: fd=%d count=%" G_GSIZE_FORMAT "\n",
win32_channel->fd, count);
if (win32_channel->thread_id)
return G_IO_STATUS_AGAIN;
#endif
default:
- g_set_error (err, G_IO_CHANNEL_ERROR,
- g_io_channel_error_from_errno (errno),
- g_strerror (errno));
+ g_set_error_literal (err, G_IO_CHANNEL_ERROR,
+ g_io_channel_error_from_errno (errno),
+ g_strerror (errno));
return G_IO_STATUS_ERROR;
}
}
}
static GIOStatus
-g_io_win32_fd_write (GIOChannel *channel,
- const gchar *buf,
- gsize count,
- gsize *bytes_written,
- GError **err)
+g_io_win32_fd_and_console_write (GIOChannel *channel,
+ const gchar *buf,
+ gsize count,
+ gsize *bytes_written,
+ GError **err)
{
GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
gint result;
+
+ if (win32_channel->thread_id)
+ {
+ return buffer_write (win32_channel, buf, count, bytes_written, err);
+ }
result = write (win32_channel->fd, buf, count);
if (win32_channel->debug)
- g_print ("g_io_win32_fd_write: fd=%d count=%d => %d\n",
+ g_print ("g_io_win32_fd_write: fd=%d count=%" G_GSIZE_FORMAT " => %d\n",
win32_channel->fd, count, result);
if (result < 0)
return G_IO_STATUS_AGAIN;
#endif
default:
- g_set_error (err, G_IO_CHANNEL_ERROR,
- g_io_channel_error_from_errno (errno),
- g_strerror (errno));
+ g_set_error_literal (err, G_IO_CHANNEL_ERROR,
+ g_io_channel_error_from_errno (errno),
+ g_strerror (errno));
return G_IO_STATUS_ERROR;
}
}
tmp_offset = offset;
if (tmp_offset != offset)
{
- g_set_error (err, G_IO_CHANNEL_ERROR,
- g_io_channel_error_from_errno (EINVAL),
- g_strerror (EINVAL));
+ g_set_error_literal (err, G_IO_CHANNEL_ERROR,
+ g_io_channel_error_from_errno (EINVAL),
+ g_strerror (EINVAL));
return G_IO_STATUS_ERROR;
}
if (result < 0)
{
- g_set_error (err, G_IO_CHANNEL_ERROR,
- g_io_channel_error_from_errno (errno),
- g_strerror (errno));
+ g_set_error_literal (err, G_IO_CHANNEL_ERROR,
+ g_io_channel_error_from_errno (errno),
+ g_strerror (errno));
return G_IO_STATUS_ERROR;
}
GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
if (win32_channel->debug)
- g_print ("thread %#x: closing fd %d\n",
+ g_print ("g_io_win32_fd_close: thread=%#x: fd=%d\n",
win32_channel->thread_id,
win32_channel->fd);
- LOCK (win32_channel->mutex);
+ EnterCriticalSection (&win32_channel->mutex);
if (win32_channel->running)
{
if (win32_channel->debug)
win32_channel->thread_id, win32_channel->fd);
win32_channel->running = FALSE;
win32_channel->needs_close = TRUE;
- SetEvent (win32_channel->data_avail_event);
+ if (win32_channel->direction == 0)
+ SetEvent (win32_channel->data_avail_event);
+ else
+ SetEvent (win32_channel->space_avail_event);
}
else
{
win32_channel->fd);
win32_channel->fd = -1;
}
- UNLOCK (win32_channel->mutex);
+ LeaveCriticalSection (&win32_channel->mutex);
/* FIXME error detection? */
if (win32_channel->data_avail_event == NULL)
create_events (win32_channel);
- watch->pollfd.fd = (gint) win32_channel->data_avail_event;
+ watch->pollfd.fd = (gintptr) win32_channel->data_avail_event;
watch->pollfd.events = condition;
if (win32_channel->debug)
- g_print ("g_io_win32_fd_create_watch: fd=%d condition={%s} handle=%#x\n",
- win32_channel->fd, condition_to_string (condition), watch->pollfd.fd);
+ g_print ("g_io_win32_fd_create_watch: channel=%p fd=%d condition={%s} event=%p\n",
+ channel, win32_channel->fd,
+ condition_to_string (condition), (HANDLE) watch->pollfd.fd);
- LOCK (win32_channel->mutex);
+ EnterCriticalSection (&win32_channel->mutex);
if (win32_channel->thread_id == 0)
- create_thread (win32_channel, condition, read_thread);
+ {
+ if (condition & G_IO_IN)
+ create_thread (win32_channel, condition, read_thread);
+ else if (condition & G_IO_OUT)
+ create_thread (win32_channel, condition, write_thread);
+ }
+
+ g_source_add_poll (source, &watch->pollfd);
+ LeaveCriticalSection (&win32_channel->mutex);
+
+ return source;
+}
+
+static GIOStatus
+g_io_win32_console_close (GIOChannel *channel,
+ GError **err)
+{
+ GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
+
+ if (close (win32_channel->fd) < 0)
+ {
+ g_set_error_literal (err, G_IO_CHANNEL_ERROR,
+ g_io_channel_error_from_errno (errno),
+ g_strerror (errno));
+ return G_IO_STATUS_ERROR;
+ }
+
+ return G_IO_STATUS_NORMAL;
+}
+static GSource *
+g_io_win32_console_create_watch (GIOChannel *channel,
+ GIOCondition condition)
+{
+ GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
+ GSource *source = g_source_new (&g_io_watch_funcs, sizeof (GIOWin32Watch));
+ GIOWin32Watch *watch = (GIOWin32Watch *)source;
+
+ watch->channel = channel;
+ g_io_channel_ref (channel);
+
+ watch->condition = condition;
+
+ watch->pollfd.fd = _get_osfhandle (win32_channel->fd);
+ watch->pollfd.events = condition;
+
g_source_add_poll (source, &watch->pollfd);
- UNLOCK (win32_channel->mutex);
return source;
}
int winsock_error;
if (win32_channel->debug)
- g_print ("g_io_win32_sock_read: sockfd=%d count=%d\n",
- win32_channel->fd, count);
+ g_print ("g_io_win32_sock_read: channel=%p sock=%d count=%" G_GSIZE_FORMAT,
+ channel, win32_channel->fd, count);
result = recv (win32_channel->fd, buf, count, 0);
if (result == SOCKET_ERROR)
winsock_error = WSAGetLastError ();
if (win32_channel->debug)
- g_print ("g_io_win32_sock_read: recv=%d %s\n",
- result,
- (result == SOCKET_ERROR ? winsock_error_message (winsock_error) : ""));
+ g_print (" recv=%d", result);
if (result == SOCKET_ERROR)
{
+ gchar *emsg = g_win32_error_message (winsock_error);
+
+ if (win32_channel->debug)
+ g_print (" %s\n", emsg);
+
*bytes_read = 0;
switch (winsock_error)
error = G_IO_CHANNEL_ERROR_INVAL;
break;
case WSAEWOULDBLOCK:
+ g_free (emsg);
return G_IO_STATUS_AGAIN;
default:
error = G_IO_CHANNEL_ERROR_FAILED;
break;
}
- g_set_error (err, G_IO_CHANNEL_ERROR, error,
- winsock_error_message (winsock_error));
+ g_set_error_literal (err, G_IO_CHANNEL_ERROR, error, emsg);
+ g_free (emsg);
+
return G_IO_STATUS_ERROR;
}
else
{
+ if (win32_channel->debug)
+ g_print ("\n");
*bytes_read = result;
if (result == 0)
return G_IO_STATUS_EOF;
int winsock_error;
if (win32_channel->debug)
- g_print ("g_io_win32_sock_write: sockfd=%d count=%d\n",
- win32_channel->fd, count);
+ g_print ("g_io_win32_sock_write: channel=%p sock=%d count=%" G_GSIZE_FORMAT,
+ channel, win32_channel->fd, count);
result = send (win32_channel->fd, buf, count, 0);
if (result == SOCKET_ERROR)
winsock_error = WSAGetLastError ();
if (win32_channel->debug)
- g_print ("g_io_win32_sock_write: send=%d %s\n",
- result,
- (result == SOCKET_ERROR ? winsock_error_message (winsock_error) : ""));
+ g_print (" send=%d", result);
if (result == SOCKET_ERROR)
{
+ gchar *emsg = g_win32_error_message (winsock_error);
+
+ if (win32_channel->debug)
+ g_print (" %s\n", emsg);
+
*bytes_written = 0;
switch (winsock_error)
case WSAEWOULDBLOCK:
win32_channel->write_would_have_blocked = TRUE;
win32_channel->last_events = 0;
+ g_free (emsg);
return G_IO_STATUS_AGAIN;
default:
error = G_IO_CHANNEL_ERROR_FAILED;
break;
}
- g_set_error (err, G_IO_CHANNEL_ERROR, error,
- winsock_error_message (winsock_error));
+ g_set_error_literal (err, G_IO_CHANNEL_ERROR, error, emsg);
+ g_free (emsg);
return G_IO_STATUS_ERROR;
}
else
{
+ if (win32_channel->debug)
+ g_print ("\n");
*bytes_written = result;
win32_channel->write_would_have_blocked = FALSE;
if (win32_channel->fd != -1)
{
if (win32_channel->debug)
- g_print ("g_io_win32_sock_close: closing socket %d\n",
- win32_channel->fd);
+ g_print ("g_io_win32_sock_close: channel=%p sock=%d\n",
+ channel, win32_channel->fd);
closesocket (win32_channel->fd);
win32_channel->fd = -1;
watch->condition = condition;
if (win32_channel->event == 0)
- win32_channel->event = (int) WSACreateEvent ();
+ win32_channel->event = WSACreateEvent ();
- watch->pollfd.fd = win32_channel->event;
+ watch->pollfd.fd = (gintptr) win32_channel->event;
watch->pollfd.events = condition;
if (win32_channel->debug)
- g_print ("g_io_win32_sock_create_watch: sock=%d handle=%#x condition={%s}\n",
- win32_channel->fd, watch->pollfd.fd,
+ g_print ("g_io_win32_sock_create_watch: channel=%p sock=%d event=%p condition={%s}\n",
+ channel, win32_channel->fd, (HANDLE) watch->pollfd.fd,
condition_to_string (watch->condition));
g_source_add_poll (source, &watch->pollfd);
MODE_W = 1 << 1,
MODE_A = 1 << 2,
MODE_PLUS = 1 << 3,
- } mode_num;
+ };
+ int mode_num;
g_return_val_if_fail (filename != NULL, NULL);
g_return_val_if_fail (mode != NULL, NULL);
mode_num = MODE_A;
break;
default:
- g_warning ("Invalid GIOFileMode %s.\n", mode);
+ g_warning ("Invalid GIOFileMode %s.", mode);
return NULL;
}
}
/* Fall through */
default:
- g_warning ("Invalid GIOFileMode %s.\n", mode);
+ g_warning ("Invalid GIOFileMode %s.", mode);
return NULL;
}
if (g_io_win32_get_debug_flag ())
{
- g_print ("g_io_channel_win32_new_file: open(\"%s\", ", filename);
+ g_print ("g_io_channel_win32_new_file: open(\"%s\",", filename);
g_win32_print_access_mode (flags|_O_BINARY);
g_print (",%#o)=%d\n", pmode, fid);
}
if (fid < 0)
{
- g_set_error (error, G_FILE_ERROR,
- g_file_error_from_errno (errno),
- g_strerror (errno));
+ g_set_error_literal (error, G_FILE_ERROR,
+ g_file_error_from_errno (errno),
+ g_strerror (errno));
return (GIOChannel *)NULL;
}
return channel;
}
-#ifdef G_OS_WIN32
+#if !defined (_WIN64)
#undef g_io_channel_new_file
#endif
static GIOStatus
-g_io_win32_set_flags (GIOChannel *channel,
- GIOFlags flags,
- GError **err)
+g_io_win32_unimpl_set_flags (GIOChannel *channel,
+ GIOFlags flags,
+ GError **err)
{
GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
if (win32_channel->debug)
{
- g_print ("g_io_win32_set_flags: ");
+ g_print ("g_io_win32_unimpl_set_flags: ");
g_win32_print_gioflags (flags);
g_print ("\n");
}
- g_set_error (err, G_IO_CHANNEL_ERROR,
- G_IO_CHANNEL_ERROR_FAILED,
- "Not implemented on Win32");
+ g_set_error_literal (err, G_IO_CHANNEL_ERROR,
+ G_IO_CHANNEL_ERROR_FAILED,
+ "Not implemented on Win32");
return G_IO_STATUS_ERROR;
}
static GIOFlags
-g_io_win32_fd_get_flags_internal (GIOChannel *channel,
- struct stat *st)
+g_io_win32_fd_get_flags_internal (GIOChannel *channel,
+ struct _stati64 *st)
{
GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel;
gchar c;
(WriteFile ((HANDLE) _get_osfhandle (win32_channel->fd), &c, 0, &count, NULL) != 0);
channel->is_seekable = FALSE;
}
- else if (st->st_mode & _S_IFCHR)
- {
- /* XXX Seems there is no way to find out the readability of file
- * handles to device files (consoles, mostly) without doing a
- * blocking read. So punt, say it's readable.
- */
- channel->is_readable = TRUE;
-
- channel->is_writeable =
- (WriteFile ((HANDLE) _get_osfhandle (win32_channel->fd), &c, 0, &count, NULL) != 0);
-
- /* XXX What about devices that actually *are* seekable? But
- * those would probably not be handled using the C runtime
- * anyway, but using Windows-specific code.
- */
- channel->is_seekable = FALSE;
- }
else
{
channel->is_readable =
static GIOFlags
g_io_win32_fd_get_flags (GIOChannel *channel)
{
- struct stat st;
+ struct _stati64 st;
GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
g_return_val_if_fail (win32_channel != NULL, 0);
g_return_val_if_fail (win32_channel->type == G_IO_WIN32_FILE_DESC, 0);
- if (0 == fstat (win32_channel->fd, &st))
+ if (0 == _fstati64 (win32_channel->fd, &st))
return g_io_win32_fd_get_flags_internal (channel, &st);
else
return 0;
}
static GIOFlags
+g_io_win32_console_get_flags_internal (GIOChannel *channel)
+{
+ GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel;
+ HANDLE handle = (HANDLE) _get_osfhandle (win32_channel->fd);
+ gchar c;
+ DWORD count;
+ INPUT_RECORD record;
+
+ channel->is_readable = PeekConsoleInput (handle, &record, 1, &count);
+ channel->is_writeable = WriteFile (handle, &c, 0, &count, NULL);
+ channel->is_seekable = FALSE;
+
+ return 0;
+}
+
+static GIOFlags
+g_io_win32_console_get_flags (GIOChannel *channel)
+{
+ GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
+
+ g_return_val_if_fail (win32_channel != NULL, 0);
+ g_return_val_if_fail (win32_channel->type == G_IO_WIN32_CONSOLE, 0);
+
+ return g_io_win32_console_get_flags_internal (channel);
+}
+
+static GIOFlags
g_io_win32_msg_get_flags (GIOChannel *channel)
{
return 0;
}
+static GIOStatus
+g_io_win32_sock_set_flags (GIOChannel *channel,
+ GIOFlags flags,
+ GError **err)
+{
+ GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
+ u_long arg;
+
+ if (win32_channel->debug)
+ {
+ g_print ("g_io_win32_sock_set_flags: ");
+ g_win32_print_gioflags (flags);
+ g_print ("\n");
+ }
+
+ if (flags & G_IO_FLAG_NONBLOCK)
+ {
+ arg = 1;
+ if (ioctlsocket (win32_channel->fd, FIONBIO, &arg) == SOCKET_ERROR)
+ {
+ gchar *emsg = g_win32_error_message (WSAGetLastError ());
+
+ g_set_error_literal (err, G_IO_CHANNEL_ERROR,
+ G_IO_CHANNEL_ERROR_FAILED,
+ emsg);
+ g_free (emsg);
+
+ return G_IO_STATUS_ERROR;
+ }
+ }
+ else
+ {
+ arg = 0;
+ if (ioctlsocket (win32_channel->fd, FIONBIO, &arg) == SOCKET_ERROR)
+ {
+ gchar *emsg = g_win32_error_message (WSAGetLastError ());
+
+ g_set_error_literal (err, G_IO_CHANNEL_ERROR,
+ G_IO_CHANNEL_ERROR_FAILED,
+ emsg);
+ g_free (emsg);
+
+ return G_IO_STATUS_ERROR;
+ }
+ }
+
+ return G_IO_STATUS_NORMAL;
+}
+
static GIOFlags
g_io_win32_sock_get_flags (GIOChannel *channel)
{
- /* XXX Could do something here. */
+ /* Could we do something here? */
return 0;
}
g_io_win32_msg_close,
g_io_win32_msg_create_watch,
g_io_win32_free,
- g_io_win32_set_flags,
+ g_io_win32_unimpl_set_flags,
g_io_win32_msg_get_flags,
};
static GIOFuncs win32_channel_fd_funcs = {
- g_io_win32_fd_read,
- g_io_win32_fd_write,
+ g_io_win32_fd_and_console_read,
+ g_io_win32_fd_and_console_write,
g_io_win32_fd_seek,
g_io_win32_fd_close,
g_io_win32_fd_create_watch,
g_io_win32_free,
- g_io_win32_set_flags,
+ g_io_win32_unimpl_set_flags,
g_io_win32_fd_get_flags,
};
+static GIOFuncs win32_channel_console_funcs = {
+ g_io_win32_fd_and_console_read,
+ g_io_win32_fd_and_console_write,
+ NULL,
+ g_io_win32_console_close,
+ g_io_win32_console_create_watch,
+ g_io_win32_free,
+ g_io_win32_unimpl_set_flags,
+ g_io_win32_console_get_flags,
+};
+
static GIOFuncs win32_channel_sock_funcs = {
g_io_win32_sock_read,
g_io_win32_sock_write,
g_io_win32_sock_close,
g_io_win32_sock_create_watch,
g_io_win32_free,
- g_io_win32_set_flags,
+ g_io_win32_sock_set_flags,
g_io_win32_sock_get_flags,
};
+/**
+ * g_io_channel_win32_new_messages:
+ * @hwnd: a window handle.
+ *
+ * Creates a new #GIOChannel given a window handle on Windows.
+ *
+ * This function creates a #GIOChannel that can be used to poll for
+ * Windows messages for the window in question.
+ *
+ * Returns: a new #GIOChannel.
+ **/
GIOChannel *
+#if GLIB_SIZEOF_VOID_P == 8
+g_io_channel_win32_new_messages (gsize hwnd)
+#else
g_io_channel_win32_new_messages (guint hwnd)
+#endif
{
GIOWin32Channel *win32_channel = g_new (GIOWin32Channel, 1);
GIOChannel *channel = (GIOChannel *)win32_channel;
g_io_channel_init (channel);
g_io_channel_win32_init (win32_channel);
if (win32_channel->debug)
- g_print ("g_io_channel_win32_new_messages: hwnd=%#x\n", hwnd);
+ g_print ("g_io_channel_win32_new_messages: channel=%p hwnd=%p\n",
+ channel, (HWND) hwnd);
channel->funcs = &win32_channel_msg_funcs;
win32_channel->type = G_IO_WIN32_WINDOWS_MESSAGES;
win32_channel->hwnd = (HWND) hwnd;
}
static GIOChannel *
-g_io_channel_win32_new_fd_internal (gint fd,
- struct stat *st)
+g_io_channel_win32_new_fd_internal (gint fd,
+ struct _stati64 *st)
{
GIOWin32Channel *win32_channel;
GIOChannel *channel;
g_io_channel_init (channel);
g_io_channel_win32_init (win32_channel);
- if (win32_channel->debug)
- g_print ("g_io_channel_win32_new_fd: %u\n", fd);
- channel->funcs = &win32_channel_fd_funcs;
- win32_channel->type = G_IO_WIN32_FILE_DESC;
+
win32_channel->fd = fd;
- g_io_win32_fd_get_flags_internal (channel, st);
+ if (win32_channel->debug)
+ g_print ("g_io_channel_win32_new_fd: channel=%p fd=%u\n",
+ channel, fd);
+
+ if (st->st_mode & _S_IFCHR) /* console */
+ {
+ channel->funcs = &win32_channel_console_funcs;
+ win32_channel->type = G_IO_WIN32_CONSOLE;
+ g_io_win32_console_get_flags_internal (channel);
+ }
+ else
+ {
+ channel->funcs = &win32_channel_fd_funcs;
+ win32_channel->type = G_IO_WIN32_FILE_DESC;
+ g_io_win32_fd_get_flags_internal (channel, st);
+ }
return channel;
}
+/**
+ * g_io_channel_win32_new_fd:
+ * @fd: a C library file descriptor.
+ *
+ * Creates a new #GIOChannel given a file descriptor on Windows. This
+ * works for file descriptors from the C runtime.
+ *
+ * This function works for file descriptors as returned by the open(),
+ * creat(), pipe() and fileno() calls in the Microsoft C runtime. In
+ * order to meaningfully use this function your code should use the
+ * same C runtime as GLib uses, which is msvcrt.dll. Note that in
+ * current Microsoft compilers it is near impossible to convince it to
+ * build code that would use msvcrt.dll. The last Microsoft compiler
+ * version that supported using msvcrt.dll as the C runtime was version
+ * 6. The GNU compiler and toolchain for Windows, also known as Mingw,
+ * fully supports msvcrt.dll.
+ *
+ * If you have created a #GIOChannel for a file descriptor and started
+ * watching (polling) it, you shouldn't call read() on the file
+ * descriptor. This is because adding polling for a file descriptor is
+ * implemented in GLib on Windows by starting a thread that sits
+ * blocked in a read() from the file descriptor most of the time. All
+ * reads from the file descriptor should be done by this internal GLib
+ * thread. Your code should call only g_io_channel_read().
+ *
+ * This function is available only in GLib on Windows.
+ *
+ * Returns: a new #GIOChannel.
+ **/
GIOChannel *
g_io_channel_win32_new_fd (gint fd)
{
- struct stat st;
+ struct _stati64 st;
- if (fstat (fd, &st) == -1)
+ if (_fstati64 (fd, &st) == -1)
{
- g_warning (G_STRLOC ": %d isn't a C library file descriptor", fd);
+ g_warning ("g_io_channel_win32_new_fd: %d isn't an open file descriptor in the C library GLib uses.", fd);
return NULL;
}
return win32_channel->fd;
}
+/**
+ * g_io_channel_win32_new_socket:
+ * @socket: a Winsock socket
+ *
+ * Creates a new #GIOChannel given a socket on Windows.
+ *
+ * This function works for sockets created by Winsock. It's available
+ * only in GLib on Windows.
+ *
+ * Polling a #GSource created to watch a channel for a socket puts the
+ * socket in non-blocking mode. This is a side-effect of the
+ * implementation and unavoidable.
+ *
+ * Returns: a new #GIOChannel
+ **/
GIOChannel *
g_io_channel_win32_new_socket (int socket)
{
g_io_channel_init (channel);
g_io_channel_win32_init (win32_channel);
if (win32_channel->debug)
- g_print ("g_io_channel_win32_new_socket: sockfd=%d\n", socket);
+ g_print ("g_io_channel_win32_new_socket: channel=%p sock=%d\n",
+ channel, socket);
channel->funcs = &win32_channel_sock_funcs;
win32_channel->type = G_IO_WIN32_SOCKET;
win32_channel->fd = socket;
g_io_channel_unix_new (gint fd)
{
gboolean is_fd, is_socket;
- struct stat st;
+ struct _stati64 st;
int optval, optlen;
- is_fd = (fstat (fd, &st) == 0);
+ is_fd = (_fstati64 (fd, &st) == 0);
optlen = sizeof (optval);
is_socket = (getsockopt (fd, SOL_SOCKET, SO_TYPE, (char *) &optval, &optlen) != SOCKET_ERROR);
if (is_fd && is_socket)
- g_warning (G_STRLOC ": %d is both a file descriptor and a socket, file descriptor interpretation assumed.", fd);
+ g_warning ("g_io_channel_unix_new: %d is both a file descriptor and a socket. File descriptor interpretation assumed. To avoid ambiguity, call either g_io_channel_win32_new_fd() or g_io_channel_win32_new_socket() instead.", fd);
if (is_fd)
return g_io_channel_win32_new_fd_internal (fd, &st);
if (is_socket)
return g_io_channel_win32_new_socket(fd);
- g_warning (G_STRLOC ": %d is neither a file descriptor or a socket", fd);
+ g_warning ("g_io_channel_unix_new: %d is neither a file descriptor or a socket.", fd);
return NULL;
}
gint n_fds,
gint timeout)
{
- int result;
-
g_return_val_if_fail (n_fds >= 0, 0);
- result = (*g_main_context_get_poll_func (NULL)) (fds, n_fds, timeout);
-
- return result;
+ return g_poll (fds, n_fds, timeout);
}
void
if (win32_channel->data_avail_event == NULL)
create_events (win32_channel);
- fd->fd = (gint) win32_channel->data_avail_event;
+ fd->fd = (gintptr) win32_channel->data_avail_event;
- if (win32_channel->thread_id == 0 && (condition & G_IO_IN))
- create_thread (win32_channel, condition, read_thread);
+ if (win32_channel->thread_id == 0)
+ {
+ /* Is it meaningful for a file descriptor to be polled for
+ * both IN and OUT? For what kind of file descriptor would
+ * that be? Doesn't seem to make sense, in practise the file
+ * descriptors handled here are always read or write ends of
+ * pipes surely, and thus unidirectional.
+ */
+ if (condition & G_IO_IN)
+ create_thread (win32_channel, condition, read_thread);
+ else if (condition & G_IO_OUT)
+ create_thread (win32_channel, condition, write_thread);
+ }
+ break;
+
+ case G_IO_WIN32_CONSOLE:
+ fd->fd = _get_osfhandle (win32_channel->fd);
break;
case G_IO_WIN32_SOCKET:
- fd->fd = (int) WSACreateEvent ();
+ fd->fd = (gintptr) WSACreateEvent ();
break;
case G_IO_WIN32_WINDOWS_MESSAGES:
fd->events = condition;
}
+#ifndef _WIN64
+
/* Binary compatibility */
GIOChannel *
g_io_channel_win32_new_stream_socket (int socket)
return g_io_channel_win32_new_socket (socket);
}
-#define __G_IO_WIN32_C__
-#include "galiasdef.c"
+#endif
projects / platform / upstream / glib.git / blobdiff