* 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/.
*/
-/* Define this to get (very) verbose logging of all channels */
-/* #define G_IO_WIN32_DEBUG */
+/*
+ * 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 <winsock.h> /* Not everybody has winsock2 */
+#include <conio.h>
#include <fcntl.h>
#include <io.h>
#include <process.h>
#include <errno.h>
#include <sys/stat.h>
+#include "gstdio.h"
#include "glibintl.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.
- */
- G_IO_WIN32_SOCKET /* Sockets. A separate thread is blocked
- * in select() most of the time.
+ * _open() or _pipe(), except for
+ * console IO. Separate thread to read
+ * or write.
*/
+
+ G_IO_WIN32_CONSOLE, /* Console IO (usually stdin, stdout, stderr) */
+
+ G_IO_WIN32_SOCKET /* Sockets. No separate thread. */
} GIOWin32ChannelType;
struct _GIOWin32Channel {
gboolean debug;
+ /* Field used by G_IO_WIN32_WINDOWS_MESSAGES channels */
+ HWND hwnd; /* Handle of window, or NULL */
+
+ /* Fields used by G_IO_WIN32_FILE_DESC channels. */
CRITICAL_SECTION mutex;
- /* This is used by G_IO_WIN32_WINDOWS_MESSAGES channels */
- HWND hwnd; /* handle of window, or NULL */
-
- /* Following fields are used by both fd and socket channels. */
- 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 */
- GSList *watches;
- HANDLE data_avail_noticed_event;
- gint reset_send; /* socket used to send data so select_thread() can reset/re-loop */
- gint reset_recv; /* socket used to recv data so select_thread() can reset/re-loop */
+ /* Fields used by G_IO_WIN32_SOCKET channels */
+ int event_mask;
+ int last_events;
+ 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_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 = "|";
}
+static const char *
+event_mask_to_string (int mask)
+{
+ char buf[100];
+ int checked_bits = 0;
+ char *bufp = buf;
+
+ if (mask == 0)
+ return "";
+
+#define BIT(n) checked_bits |= FD_##n; if (mask & FD_##n) bufp += sprintf (bufp, "%s" #n, (bufp>buf ? "|" : ""))
+
+ BIT (READ);
+ BIT (WRITE);
+ BIT (OOB);
+ BIT (ACCEPT);
+ BIT (CONNECT);
+ BIT (CLOSE);
+ BIT (QOS);
+ BIT (GROUP_QOS);
+ BIT (ROUTING_INTERFACE_CHANGE);
+ BIT (ADDRESS_LIST_CHANGE);
+
+#undef BIT
+
+ if ((mask & ~checked_bits) != 0)
+ bufp += sprintf (bufp, "|%#x", mask & ~checked_bits);
+
+ return g_quark_to_string (g_quark_from_string (buf));
+}
+
+static const char *
+condition_to_string (GIOCondition condition)
+{
+ char buf[100];
+ int checked_bits = 0;
+ char *bufp = buf;
+
+ if (condition == 0)
+ return "";
+
+#define BIT(n) checked_bits |= G_IO_##n; if (condition & G_IO_##n) bufp += sprintf (bufp, "%s" #n, (bufp>buf ? "|" : ""))
+
+ BIT (IN);
+ BIT (OUT);
+ BIT (PRI);
+ BIT (ERR);
+ BIT (HUP);
+ BIT (NVAL);
+
+#undef BIT
+
+ if ((condition & ~checked_bits) != 0)
+ bufp += sprintf (bufp, "|%#x", condition & ~checked_bits);
+
+ return g_quark_to_string (g_quark_from_string (buf));
+}
+
static gboolean
g_io_win32_get_debug_flag (void)
{
-#ifdef G_IO_WIN32_DEBUG
- return TRUE;
-#else
- if (getenv ("G_IO_WIN32_DEBUG") != NULL)
- return TRUE;
- else
- return FALSE;
-#endif
-}
+ return (getenv ("G_IO_WIN32_DEBUG") != NULL);
+}
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->data_avail_noticed_event = NULL;
- channel->watches = NULL;
- InitializeCriticalSection (&channel->mutex);
+
+ channel->event_mask = 0;
+ channel->last_events = 0;
+ channel->event = NULL;
+ channel->write_would_have_blocked = FALSE;
+ channel->ever_writable = FALSE;
}
static void
* is automatic reset.
*/
if (!(channel->data_avail_event = CreateEvent (&sec_attrs, TRUE, FALSE, NULL))
- || !(channel->space_avail_event = CreateEvent (&sec_attrs, FALSE, FALSE, NULL))
- || !(channel->data_avail_noticed_event = CreateEvent (&sec_attrs, FALSE, FALSE, NULL)))
+ || !(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 void
-create_thread (GIOWin32Channel *channel,
- GIOCondition condition,
- unsigned (__stdcall *thread) (void *parameter))
+static unsigned __stdcall
+write_thread (void *parameter)
{
- HANDLE thread_handle;
+ GIOWin32Channel *channel = parameter;
+ guchar *buffer;
+ gint nbytes;
- 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_strerror (errno));
- else if (!CloseHandle (thread_handle))
- g_warning (G_STRLOC ": Error closing thread handle: %s\n",
- g_win32_error_message (GetLastError ()));
+ g_io_channel_ref ((GIOChannel *)channel);
- WaitForSingleObject (channel->space_avail_event, INFINITE);
-}
+ 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;
-static void
-init_reset_sockets (GIOWin32Channel *channel)
-{
- struct sockaddr_in local, local2, server;
- int len;
+ SetEvent (channel->space_avail_event);
- channel->reset_send = (gint) socket (AF_INET, SOCK_DGRAM, 0);
- if (channel->reset_send == INVALID_SOCKET)
+ /* 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)
{
- g_warning (G_STRLOC ": Error creating reset_send socket: %s\n",
- g_win32_error_message (WSAGetLastError ()));
- }
+ 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);
- local.sin_family = AF_INET;
- local.sin_port = 0;
- local.sin_addr.s_addr = htonl (INADDR_ANY);
+ EnterCriticalSection (&channel->mutex);
+ if (channel->rdp == channel->wrp)
+ break;
- if (bind (channel->reset_send, (struct sockaddr *)&local, sizeof (local)) == SOCKET_ERROR)
- {
- g_warning (G_STRLOC ": Error binding to reset_send socket: %s\n",
- g_win32_error_message (WSAGetLastError ()));
- }
+ 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;
- local2.sin_family = AF_INET;
- local2.sin_port = 0;
- local2.sin_addr.s_addr = htonl (INADDR_ANY);
+ if (channel->debug)
+ g_print ("write_thread %#x: calling write() for %d bytes\n",
+ channel->thread_id, nbytes);
- channel->reset_recv = (gint) socket (AF_INET, SOCK_DGRAM, 0);
- if (channel->reset_recv == INVALID_SOCKET)
- {
- g_warning (G_STRLOC ": Error creating reset_recv socket: %s\n",
- g_win32_error_message (WSAGetLastError ()));
- }
+ LeaveCriticalSection (&channel->mutex);
+ nbytes = write (channel->fd, buffer, nbytes);
+ EnterCriticalSection (&channel->mutex);
- if (bind (channel->reset_recv, (struct sockaddr *)&local2, sizeof (local)) == SOCKET_ERROR)
- {
- g_warning (G_STRLOC ": Error binding to reset_recv socket: %s\n",
- g_win32_error_message (WSAGetLastError ()));
+ 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);
}
- len = sizeof (local2);
- if (getsockname (channel->reset_recv, (struct sockaddr *)&local2, &len) == SOCKET_ERROR)
+ channel->running = FALSE;
+ if (channel->needs_close)
{
- g_warning (G_STRLOC ": Error getsockname with reset_recv socket: %s\n",
- g_win32_error_message (WSAGetLastError ()));
+ 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;
}
- memset (&server, 0, sizeof (server));
- server.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
- server.sin_family = AF_INET;
- server.sin_port = local2.sin_port;
+ LeaveCriticalSection (&channel->mutex);
+
+ g_io_channel_unref ((GIOChannel *)channel);
+
+ return 0;
+}
+
+static void
+create_thread (GIOWin32Channel *channel,
+ GIOCondition condition,
+ unsigned (__stdcall *thread) (void *parameter))
+{
+ HANDLE thread_handle;
- if (connect (channel->reset_send, (struct sockaddr *)&server, sizeof (server)) == SOCKET_ERROR)
+ thread_handle = (HANDLE) _beginthreadex (NULL, 0, thread, channel, 0,
+ &channel->thread_id);
+ if (thread_handle == 0)
+ g_warning ("Error creating thread: %s.",
+ g_strerror (errno));
+ else if (!CloseHandle (thread_handle))
{
- g_warning (G_STRLOC ": connect to reset_recv socket: %s\n",
- g_win32_error_message (WSAGetLastError ()));
- }
+ 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 unsigned __stdcall
-select_thread (void *parameter)
-{
- GIOWin32Channel *channel = parameter;
- fd_set read_fds, write_fds, except_fds;
- GSList *tmp;
- int n;
- char buffer[8];
-
- g_io_channel_ref ((GIOChannel *)channel);
- if (channel->debug)
- g_print ("select_thread %#x: start fd:%d data_avail:%#x data_avail_noticed:%#x\n",
- channel->thread_id,
- channel->fd,
- (guint) channel->data_avail_event,
- (guint) channel->data_avail_noticed_event);
+static GIOStatus
+buffer_write (GIOWin32Channel *channel,
+ const gchar *dest,
+ gsize count,
+ gsize *bytes_written,
+ GError **err)
+{
+ guint nbytes;
+ guint left = count;
- channel->rdp = channel->wrp = 0;
- channel->running = TRUE;
-
- SetEvent (channel->space_avail_event);
+ 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);
- while (channel->running)
+ if ((channel->wrp + 1) % BUFFER_SIZE == channel->rdp)
{
- FD_ZERO (&read_fds);
- FD_ZERO (&write_fds);
- FD_ZERO (&except_fds);
- FD_SET (channel->reset_recv, &read_fds);
-
- LOCK (channel->mutex);
- tmp = channel->watches;
- while (tmp)
- {
- GIOWin32Watch *watch = (GIOWin32Watch *)tmp->data;
-
- if (watch->condition & (G_IO_IN | G_IO_HUP))
- FD_SET (channel->fd, &read_fds);
- if (watch->condition & G_IO_OUT)
- FD_SET (channel->fd, &write_fds);
- if (watch->condition & G_IO_ERR)
- FD_SET (channel->fd, &except_fds);
-
- tmp = tmp->next;
- }
- UNLOCK (channel->mutex);
-
+ /* Buffer is full */
if (channel->debug)
- g_print ("select_thread %#x: calling select() for%s%s%s\n",
- channel->thread_id,
- (FD_ISSET (channel->fd, &read_fds) ? " IN" : ""),
- (FD_ISSET (channel->fd, &write_fds) ? " OUT" : ""),
- (FD_ISSET (channel->fd, &except_fds) ? " ERR" : ""));
-
- n = select (1, &read_fds, &write_fds, &except_fds, NULL);
-
- LOCK (channel->mutex);
- if (channel->needs_close)
- {
- UNLOCK (channel->mutex);
- break;
- }
- UNLOCK (channel->mutex);
-
- if (n == SOCKET_ERROR)
- {
- if (channel->debug)
- g_print ("select_thread %#x: select returned SOCKET_ERROR\n",
- channel->thread_id);
- break;
- }
-
- if (FD_ISSET (channel->reset_recv, &read_fds))
- {
+ g_print ("buffer_write: tid %#x: resetting data_avail\n",
+ channel->thread_id);
+ ResetEvent (channel->data_avail_event);
if (channel->debug)
- g_print ("select_thread %#x: re-looping\n",
- channel->thread_id);
- recv (channel->reset_recv, (char *)&buffer, (int) sizeof (buffer), 0);
- continue;
+ 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);
- if (channel->debug)
- g_print ("select_thread %#x: got%s%s%s\n",
- channel->thread_id,
- (FD_ISSET (channel->fd, &read_fds) ? " IN" : ""),
- (FD_ISSET (channel->fd, &write_fds) ? " OUT" : ""),
- (FD_ISSET (channel->fd, &except_fds) ? " ERR" : ""));
-
- if (FD_ISSET (channel->fd, &read_fds))
- channel->revents |= G_IO_IN;
- if (FD_ISSET (channel->fd, &write_fds))
- channel->revents |= G_IO_OUT;
- if (FD_ISSET (channel->fd, &except_fds))
- channel->revents |= G_IO_ERR;
-
- if (channel->debug)
- g_print ("select_thread %#x: resetting data_avail_noticed, setting data_avail\n",
- channel->thread_id);
-
- LOCK (channel->mutex);
- ResetEvent (channel->data_avail_noticed_event);
- SetEvent (channel->data_avail_event);
- if (channel->needs_close)
- {
- UNLOCK (channel->mutex);
- break;
- }
- UNLOCK (channel->mutex);
+ 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);
- if (channel->debug)
- g_print ("select_thread %#x: waiting for data_avail_noticed\n",
- channel->thread_id);
+ 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);
- WaitForSingleObject (channel->data_avail_noticed_event, INFINITE);
- if (channel->debug)
- g_print ("select_thread %#x: got data_avail_noticed\n",
+ 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);
}
- LOCK (channel->mutex);
- channel->running = FALSE;
- if (channel->debug)
- g_print ("select_thread %#x: got error, setting data_avail\n",
- channel->thread_id);
- SetEvent (channel->data_avail_event);
- g_io_channel_unref ((GIOChannel *)channel);
- UNLOCK (channel->mutex);
-
- /* No need to call _endthreadex(), the actual thread starter routine
- * in MSVCRT (see crt/src/threadex.c:_threadstartex) calls
- * _endthreadex() for us.
+ LeaveCriticalSection (&channel->mutex);
+
+ /* We have no way to indicate any errors form the actual
+ * write() call in the writer thread. Should we have?
*/
-
- return 0;
+ *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)
GIOWin32Watch *watch = (GIOWin32Watch *)source;
GIOCondition buffer_condition = g_io_channel_get_buffer_condition (watch->channel);
GIOWin32Channel *channel = (GIOWin32Channel *)watch->channel;
+ int event_mask;
*timeout = -1;
if (channel->debug)
- g_print ("g_io_win32_prepare: for thread %#x buffer_condition:%#x\n"
- " watch->pollfd.events:%#x watch->pollfd.revents:%#x channel->revents:%#x\n",
- channel->thread_id, buffer_condition,
- watch->pollfd.events, watch->pollfd.revents, channel->revents);
+ g_print ("g_io_win32_prepare: source=%p channel=%p", source, channel);
- if (channel->type == G_IO_WIN32_FILE_DESC)
+ switch (channel->type)
{
- LOCK (channel->mutex);
- if (channel->running && channel->wrp == channel->rdp)
+ 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 (" 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));
+
+ 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->type == G_IO_WIN32_SOCKET)
- {
- LOCK (channel->mutex);
- channel->revents = 0;
- if (channel->debug)
- g_print ("g_io_win32_prepare: for thread %#x, setting data_avail_noticed\n",
- channel->thread_id);
- SetEvent (channel->data_avail_noticed_event);
+ 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 ("g_io_win32_prepare: thread %#x, there.\n",
- channel->thread_id);
- UNLOCK (channel->mutex);
+ 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);
+ event_mask |= FD_CLOSE;
+
+ if (channel->event_mask != event_mask)
+ {
+ if (channel->debug)
+ 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)
+ if (channel->debug)
+ {
+ gchar *emsg = g_win32_error_message (WSAGetLastError ());
+
+ g_print (" failed: %s", emsg);
+ g_free (emsg);
+ }
+ channel->event_mask = event_mask;
+
+ 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;
+
+ default:
+ g_assert_not_reached ();
+ abort ();
}
+ if (channel->debug)
+ g_print ("\n");
return ((watch->condition & buffer_condition) == watch->condition);
}
GIOWin32Watch *watch = (GIOWin32Watch *)source;
GIOWin32Channel *channel = (GIOWin32Channel *)watch->channel;
GIOCondition buffer_condition = g_io_channel_get_buffer_condition (watch->channel);
+ WSANETWORKEVENTS events;
if (channel->debug)
- g_print ("g_io_win32_check: for thread %#x buffer_condition:%#x\n"
- " watch->pollfd.events:%#x watch->pollfd.revents:%#x channel->revents:%#x\n",
- channel->thread_id, buffer_condition,
- watch->pollfd.events, watch->pollfd.revents, channel->revents);
+ g_print ("g_io_win32_check: source=%p channel=%p", source, channel);
- if (channel->type != G_IO_WIN32_WINDOWS_MESSAGES)
- {
- watch->pollfd.revents = (watch->pollfd.events & channel->revents);
- }
- else
+ 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));
- }
-
- if (channel->type == G_IO_WIN32_SOCKET)
- {
- LOCK (channel->mutex);
+
+ case G_IO_WIN32_FILE_DESC:
if (channel->debug)
- g_print ("g_io_win32_check: thread %#x, resetting data_avail\n",
- channel->thread_id);
- ResetEvent (channel->data_avail_event);
+ 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),
+ condition_to_string (watch->pollfd.revents),
+ condition_to_string (channel->revents));
+
+ watch->pollfd.revents = (watch->pollfd.events & channel->revents);
+
+ return ((watch->pollfd.revents | buffer_condition) & watch->condition);
+
+ case G_IO_WIN32_CONSOLE:
if (channel->debug)
- g_print ("g_io_win32_check: thread %#x, there.\n",
- channel->thread_id);
- UNLOCK (channel->mutex);
- }
+ 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 (" 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 ("\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 &&
+ events.lNetworkEvents == 0 &&
+ !(channel->event_mask & FD_WRITE))
+ {
+ channel->event_mask = 0;
+ if (channel->debug)
+ 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 (" 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)
+ 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 (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);
+ return ((watch->pollfd.revents | buffer_condition) & watch->condition);
+
+ default:
+ g_assert_not_reached ();
+ abort ();
+ }
}
static gboolean
{
GIOFunc func = (GIOFunc)callback;
GIOWin32Watch *watch = (GIOWin32Watch *)source;
+ GIOWin32Channel *channel = (GIOWin32Channel *)watch->channel;
GIOCondition buffer_condition = g_io_channel_get_buffer_condition (watch->channel);
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;
}
+ if (channel->debug)
+ g_print ("g_io_win32_dispatch: pollfd.revents=%s condition=%s result=%s\n",
+ condition_to_string (watch->pollfd.revents),
+ condition_to_string (watch->condition),
+ condition_to_string ((watch->pollfd.revents | buffer_condition) & watch->condition));
+
return (*func) (watch->channel,
(watch->pollfd.revents | buffer_condition) & watch->condition,
user_data);
{
GIOWin32Watch *watch = (GIOWin32Watch *)source;
GIOWin32Channel *channel = (GIOWin32Channel *)watch->channel;
- char send_buffer[] = "f";
- LOCK (channel->mutex);
if (channel->debug)
- g_print ("g_io_win32_finalize: channel with thread %#x\n",
- channel->thread_id);
+ g_print ("g_io_win32_finalize: source=%p channel=%p", source, channel);
- channel->watches = g_slist_remove (channel->watches, watch);
+ switch (channel->type)
+ {
+ case G_IO_WIN32_WINDOWS_MESSAGES:
+ if (channel->debug)
+ g_print (" MSG");
+ break;
- SetEvent (channel->data_avail_noticed_event);
- if (channel->type == G_IO_WIN32_SOCKET)
- send (channel->reset_send, send_buffer, sizeof (send_buffer), 0);
+ case G_IO_WIN32_CONSOLE:
+ if (channel->debug)
+ g_print (" CON");
+ break;
+ case G_IO_WIN32_FILE_DESC:
+ if (channel->debug)
+ g_print (" FD thread=%#x", channel->thread_id);
+ break;
+
+ case G_IO_WIN32_SOCKET:
+ if (channel->debug)
+ 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);
- UNLOCK (channel->mutex);
}
-#if defined(G_PLATFORM_WIN32) && defined(__GNUC__)
-__declspec(dllexport)
-#endif
GSourceFuncs g_io_watch_funcs = {
g_io_win32_prepare,
g_io_win32_check,
g_io_win32_finalize
};
-static GSource *
-g_io_win32_create_watch (GIOChannel *channel,
- GIOCondition condition,
- unsigned (__stdcall *thread) (void *parameter))
-{
- GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
- GIOWin32Watch *watch;
- GSource *source;
- char send_buffer[] = "c";
-
- source = g_source_new (&g_io_watch_funcs, sizeof (GIOWin32Watch));
- watch = (GIOWin32Watch *)source;
-
- watch->channel = channel;
- g_io_channel_ref (channel);
-
- watch->condition = condition;
-
- if (win32_channel->data_avail_event == NULL)
- create_events (win32_channel);
-
- watch->pollfd.fd = (gint) win32_channel->data_avail_event;
- watch->pollfd.events = condition;
-
- if (win32_channel->debug)
- g_print ("g_io_win32_create_watch: fd:%d condition:%#x handle:%#x\n",
- win32_channel->fd, condition, watch->pollfd.fd);
-
- LOCK (win32_channel->mutex);
- win32_channel->watches = g_slist_append (win32_channel->watches, watch);
-
- if (win32_channel->thread_id == 0)
- create_thread (win32_channel, condition, thread);
- else
- send (win32_channel->reset_send, send_buffer, sizeof (send_buffer), 0);
-
- g_source_add_poll (source, &watch->pollfd);
- UNLOCK (win32_channel->mutex);
-
- return source;
-}
-
static GIOStatus
g_io_win32_msg_read (GIOChannel *channel,
gchar *buf,
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;
}
{
/* Nothing to be done. Or should we set hwnd to some invalid value? */
- return G_IO_STATUS_NORMAL;
-}
+ return G_IO_STATUS_NORMAL;
+}
+
+static void
+g_io_win32_free (GIOChannel *channel)
+{
+ GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
+
+ if (win32_channel->debug)
+ g_print ("g_io_win32_free channel=%p fd=%d\n", channel, win32_channel->fd);
+
+ 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);
+ }
-static void
-g_io_win32_free (GIOChannel *channel)
-{
- GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
-
- if (win32_channel->debug)
- g_print ("thread %#x: freeing channel, fd: %d\n",
- win32_channel->thread_id,
- win32_channel->fd);
+ if (win32_channel->event)
+ if (!WSACloseEvent (win32_channel->event))
+ if (win32_channel->debug)
+ {
+ gchar *emsg = g_win32_error_message (WSAGetLastError ());
- if (win32_channel->reset_send)
- closesocket (win32_channel->reset_send);
- if (win32_channel->reset_recv)
- closesocket (win32_channel->reset_recv);
- 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->data_avail_noticed_event)
- CloseHandle (win32_channel->data_avail_noticed_event);
- DeleteCriticalSection (&win32_channel->mutex);
+ g_print (" WSACloseEvent(%p) failed: %s\n",
+ win32_channel->event, emsg);
+ g_free (emsg);
+ }
- g_free (win32_channel->buffer);
- g_slist_free (win32_channel->watches);
g_free (win32_channel);
}
static GSource *
-g_io_win32_msg_create_watch (GIOChannel *channel,
- GIOCondition condition)
+g_io_win32_msg_create_watch (GIOChannel *channel,
+ GIOCondition condition)
{
GIOWin32Watch *watch;
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)
result = read (win32_channel->fd, buf, count);
if (win32_channel->debug)
- g_print ("g_io_win32_fd_read: read() = %d\n", result);
+ g_print ("g_io_win32_fd_read: read() => %d\n", 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;
}
}
}
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;
}
}
default:
whence = -1; /* Keep the compiler quiet */
g_assert_not_reached ();
+ abort ();
}
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? */
g_io_win32_fd_create_watch (GIOChannel *channel,
GIOCondition condition)
{
- return g_io_win32_create_watch (channel, condition, read_thread);
+ 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;
+
+ if (win32_channel->data_avail_event == NULL)
+ create_events (win32_channel);
+
+ 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: channel=%p fd=%d condition={%s} event=%p\n",
+ channel, win32_channel->fd,
+ condition_to_string (condition), (HANDLE) watch->pollfd.fd);
+
+ EnterCriticalSection (&win32_channel->mutex);
+ if (win32_channel->thread_id == 0)
+ {
+ 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);
+
+ return source;
}
static GIOStatus
{
GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
gint result;
- GIOChannelError error = G_IO_STATUS_NORMAL;
- GIOStatus internal_status = G_IO_STATUS_NORMAL;
- char send_buffer[] = "sr";
+ GIOChannelError error;
+ int winsock_error;
if (win32_channel->debug)
- g_print ("g_io_win32_sock_read: sockfd:%d count:%d\n",
- win32_channel->fd, count);
-#ifdef WE_NEED_TO_HANDLE_WSAEINTR
-repeat:
-#endif
+ 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\n", result);
+ 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 (WSAGetLastError ())
+ switch (winsock_error)
{
case WSAEINVAL:
error = G_IO_CHANNEL_ERROR_INVAL;
break;
case WSAEWOULDBLOCK:
+ g_free (emsg);
return G_IO_STATUS_AGAIN;
-#ifdef WE_NEED_TO_HANDLE_WSAEINTR /* not anymore with wsock2 ? */
- case WSAEINTR:
- goto repeat;
-#endif
default:
error = G_IO_CHANNEL_ERROR_FAILED;
break;
}
- g_set_error (err, G_IO_CHANNEL_ERROR, error, "Socket read error");
- internal_status = G_IO_STATUS_ERROR;
- /* FIXME get all errors, better error messages */
+ 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)
- internal_status = G_IO_STATUS_EOF;
- }
-
- if ((internal_status == G_IO_STATUS_EOF) ||
- (internal_status == G_IO_STATUS_ERROR))
- {
- LOCK (win32_channel->mutex);
- SetEvent (win32_channel->data_avail_noticed_event);
- win32_channel->needs_close = 1;
- send (win32_channel->reset_send, send_buffer, sizeof (send_buffer), 0);
- UNLOCK (win32_channel->mutex);
+ return G_IO_STATUS_EOF;
+ else
+ return G_IO_STATUS_NORMAL;
}
- return internal_status;
}
static GIOStatus
{
GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
gint result;
- GIOChannelError error = G_IO_STATUS_NORMAL;
- char send_buffer[] = "sw";
+ GIOChannelError error;
+ int winsock_error;
if (win32_channel->debug)
- g_print ("g_io_win32_sock_write: sockfd:%d count:%d\n",
- win32_channel->fd, count);
-#ifdef WE_NEED_TO_HANDLE_WSAEINTR
-repeat:
-#endif
+ 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\n", result);
+ 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 (WSAGetLastError ())
+ switch (winsock_error)
{
case WSAEINVAL:
error = G_IO_CHANNEL_ERROR_INVAL;
break;
case WSAEWOULDBLOCK:
+ win32_channel->write_would_have_blocked = TRUE;
+ win32_channel->last_events = 0;
+ g_free (emsg);
return G_IO_STATUS_AGAIN;
-#ifdef WE_NEED_TO_HANDLE_WSAEINTR /* not anymore with wsock2 ? */
- case WSAEINTR:
- goto repeat;
-#endif
default:
error = G_IO_CHANNEL_ERROR_FAILED;
break;
}
- g_set_error (err, G_IO_CHANNEL_ERROR, error, "Socket write error");
- LOCK (win32_channel->mutex);
- SetEvent (win32_channel->data_avail_noticed_event);
- win32_channel->needs_close = 1;
- send (win32_channel->reset_send, send_buffer, sizeof (send_buffer), 0);
- UNLOCK (win32_channel->mutex);
+ g_set_error_literal (err, G_IO_CHANNEL_ERROR, error, emsg);
+ g_free (emsg);
+
return G_IO_STATUS_ERROR;
- /* FIXME get all errors, better error messages */
}
else
{
+ if (win32_channel->debug)
+ g_print ("\n");
*bytes_written = result;
+ win32_channel->write_would_have_blocked = FALSE;
return G_IO_STATUS_NORMAL;
}
{
GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
- LOCK (win32_channel->mutex);
- if (win32_channel->running)
- {
- if (win32_channel->debug)
- g_print ("thread %#x: running, marking for later close\n",
- win32_channel->thread_id);
- win32_channel->running = FALSE;
- win32_channel->needs_close = TRUE;
- SetEvent(win32_channel->data_avail_noticed_event);
- }
if (win32_channel->fd != -1)
{
if (win32_channel->debug)
- g_print ("thread %#x: closing socket %d\n",
- win32_channel->thread_id,
- 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;
}
- UNLOCK (win32_channel->mutex);
/* FIXME error detection? */
g_io_win32_sock_create_watch (GIOChannel *channel,
GIOCondition condition)
{
- return g_io_win32_create_watch (channel, condition, select_thread);
+ 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;
+
+ if (win32_channel->event == 0)
+ win32_channel->event = WSACreateEvent ();
+
+ watch->pollfd.fd = (gintptr) win32_channel->event;
+ watch->pollfd.events = condition;
+
+ if (win32_channel->debug)
+ 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);
+
+ return source;
}
GIOChannel *
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;
}
break;
default:
g_assert_not_reached ();
- flags = 0;
- pmode = 0;
+ abort ();
}
/* always open 'untranslated' */
- fid = open (filename, flags | _O_BINARY, pmode);
+ fid = g_open (filename, flags | _O_BINARY, pmode);
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;
}
break;
default:
g_assert_not_reached ();
+ abort ();
}
return channel;
}
+#if !defined (_WIN64)
+
+#undef g_io_channel_new_file
+
+/* Binary compatibility version. Not for newly compiled code. */
+
+GIOChannel *
+g_io_channel_new_file (const gchar *filename,
+ const gchar *mode,
+ GError **error)
+{
+ gchar *utf8_filename = g_locale_to_utf8 (filename, -1, NULL, NULL, error);
+ GIOChannel *retval;
+
+ if (utf8_filename == NULL)
+ return NULL;
+
+ retval = g_io_channel_new_file_utf8 (utf8_filename, mode, error);
+
+ g_free (utf8_filename);
+
+ return retval;
+}
+
+#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_warning ("g_io_win32_set_flags () not implemented.\n");
+ g_set_error_literal (err, G_IO_CHANNEL_ERROR,
+ G_IO_CHANNEL_ERROR_FAILED,
+ "Not implemented on Win32");
- return G_IO_STATUS_NORMAL;
+ 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, use st->st_mode.
- */
- channel->is_readable = !!(st->st_mode & _S_IREAD);
-
- 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 = %ud\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);
- init_reset_sockets (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;
- /* XXX: check this */
channel->is_readable = TRUE;
channel->is_writeable = TRUE;
-
channel->is_seekable = FALSE;
return channel;
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
{
GIOWin32Channel *win32_channel = (GIOWin32Channel *)channel;
- if (win32_channel->data_avail_event == NULL)
- create_events (win32_channel);
-
- fd->fd = (gint) win32_channel->data_avail_event;
- fd->events = condition;
-
- if (win32_channel->thread_id == 0)
+ switch (win32_channel->type)
{
- if ((condition & G_IO_IN) && win32_channel->type == G_IO_WIN32_FILE_DESC)
- create_thread (win32_channel, condition, read_thread);
- else if (win32_channel->type == G_IO_WIN32_SOCKET)
- create_thread (win32_channel, condition, select_thread);
+ case G_IO_WIN32_FILE_DESC:
+ if (win32_channel->data_avail_event == NULL)
+ create_events (win32_channel);
+
+ fd->fd = (gintptr) win32_channel->data_avail_event;
+
+ 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 = (gintptr) WSACreateEvent ();
+ break;
+
+ case G_IO_WIN32_WINDOWS_MESSAGES:
+ fd->fd = G_WIN32_MSG_HANDLE;
+ break;
+
+ default:
+ g_assert_not_reached ();
+ abort ();
}
+
+ 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);
}
+
+#endif
projects / platform / upstream / glib.git / blobdiff