diff options
Diffstat (limited to 'libXfont/src/fc/fsio.c')
-rw-r--r-- | libXfont/src/fc/fsio.c | 903 |
1 files changed, 452 insertions, 451 deletions
diff --git a/libXfont/src/fc/fsio.c b/libXfont/src/fc/fsio.c index 63d3b4f3c..29c0d7d26 100644 --- a/libXfont/src/fc/fsio.c +++ b/libXfont/src/fc/fsio.c @@ -1,451 +1,452 @@ -/* - * Copyright 1990 Network Computing Devices - * - * Permission to use, copy, modify, distribute, and sell this software and its - * documentation for any purpose is hereby granted without fee, provided that - * the above copyright notice appear in all copies and that both that - * copyright notice and this permission notice appear in supporting - * documentation, and that the name of Network Computing Devices not be - * used in advertising or publicity pertaining to distribution of the - * software without specific, written prior permission. Network Computing - * Devices makes no representations about the suitability of this software - * for any purpose. It is provided "as is" without express or implied - * warranty. - * - * NETWORK COMPUTING DEVICES DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS - * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, - * IN NO EVENT SHALL NETWORK COMPUTING DEVICES BE LIABLE FOR ANY SPECIAL, - * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM - * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE - * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE - * OR PERFORMANCE OF THIS SOFTWARE. - * - * Author: Dave Lemke, Network Computing Devices, Inc - */ -/* - * font server i/o routines - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#ifdef WIN32 -#define _WILLWINSOCK_ -#include "X11/Xwindows.h" -#endif - -#define FONT_t -#define TRANS_CLIENT -#include "X11/Xtrans/Xtrans.h" -#include "X11/Xpoll.h" -#include <X11/fonts/FS.h> -#include <X11/fonts/FSproto.h> -#include <X11/fonts/fontmisc.h> -#include <X11/fonts/fontstruct.h> -#include "fservestr.h" - -#include <stdio.h> -#include <signal.h> -#include <sys/types.h> -#if !defined(WIN32) -#ifndef Lynx -#include <sys/socket.h> -#else -#include <socket.h> -#endif -#endif -#include <errno.h> -#ifdef WIN32 -#define EWOULDBLOCK WSAEWOULDBLOCK -#undef EINTR -#define EINTR WSAEINTR -#endif - - - -static int padlength[4] = {0, 3, 2, 1}; -fd_set _fs_fd_mask; - -static int -_fs_resize (FSBufPtr buf, long size); - -static void -_fs_downsize (FSBufPtr buf, long size); - -int -_fs_poll_connect (XtransConnInfo trans_conn, int timeout) -{ - fd_set w_mask; - struct timeval tv; - int fs_fd = _FontTransGetConnectionNumber (trans_conn); - int ret; - - do - { - tv.tv_usec = 0; - tv.tv_sec = timeout; - FD_ZERO (&w_mask); - FD_SET (fs_fd, &w_mask); - ret = Select (fs_fd + 1, NULL, &w_mask, NULL, &tv); - } while (ret < 0 && ECHECK(EINTR)); - if (ret == 0) - return FSIO_BLOCK; - if (ret < 0) - return FSIO_ERROR; - return FSIO_READY; -} - -XtransConnInfo -_fs_connect(char *servername, int *err) -{ - XtransConnInfo trans_conn; /* transport connection object */ - int ret; - int i = 0; - int retries = 5; - - /* - * Open the network connection. - */ - if( (trans_conn=_FontTransOpenCOTSClient(servername)) == NULL ) - { - *err = FSIO_ERROR; - return 0; - } - - /* - * Set the connection non-blocking since we use select() to block. - */ - - _FontTransSetOption(trans_conn, TRANS_NONBLOCKING, 1); - - do { - i = _FontTransConnect(trans_conn,servername); - } while ((i == TRANS_TRY_CONNECT_AGAIN) && (retries-- > 0)); - - if (i < 0) - { - if (i == TRANS_IN_PROGRESS) - ret = FSIO_BLOCK; - else - ret = FSIO_ERROR; - } - else - ret = FSIO_READY; - - if (ret == FSIO_ERROR) - { - _FontTransClose(trans_conn); - trans_conn = 0; - } - - *err = ret; - return trans_conn; -} - -static int -_fs_fill (FSFpePtr conn) -{ - long avail; - long bytes_read; - Bool waited = FALSE; - - if (_fs_flush (conn) < 0) - return FSIO_ERROR; - /* - * Don't go overboard here; stop reading when we've - * got enough to satisfy the pending request - */ - while ((conn->inNeed - (conn->inBuf.insert - conn->inBuf.remove)) > 0) - { - avail = conn->inBuf.size - conn->inBuf.insert; - /* - * For SVR4 with a unix-domain connection, ETEST() after selecting - * readable means the server has died. To do this here, we look for - * two consecutive reads returning ETEST(). - */ - ESET (0); - bytes_read =_FontTransRead(conn->trans_conn, - conn->inBuf.buf + conn->inBuf.insert, - avail); - if (bytes_read > 0) { - conn->inBuf.insert += bytes_read; - waited = FALSE; - } - else - { - if (bytes_read == 0 || ETEST ()) - { - if (!waited) - { - waited = TRUE; - if (_fs_wait_for_readable (conn, 0) == FSIO_BLOCK) - return FSIO_BLOCK; - continue; - } - } - _fs_connection_died (conn); - return FSIO_ERROR; - } - } - return FSIO_READY; -} - -/* - * Make space and return whether data have already arrived - */ - -int -_fs_start_read (FSFpePtr conn, long size, char **buf) -{ - int ret; - - conn->inNeed = size; - if (fs_inqueued(conn) < size) - { - if (_fs_resize (&conn->inBuf, size) != FSIO_READY) - { - _fs_connection_died (conn); - return FSIO_ERROR; - } - ret = _fs_fill (conn); - if (ret == FSIO_ERROR) - return ret; - if (ret == FSIO_BLOCK || fs_inqueued(conn) < size) - return FSIO_BLOCK; - } - if (buf) - *buf = conn->inBuf.buf + conn->inBuf.remove; - return FSIO_READY; -} - -void -_fs_done_read (FSFpePtr conn, long size) -{ - if (conn->inBuf.insert - conn->inBuf.remove < size) - { -#ifdef DEBUG - fprintf (stderr, "_fs_done_read skipping to many bytes\n"); -#endif - return; - } - conn->inBuf.remove += size; - conn->inNeed -= size; - _fs_downsize (&conn->inBuf, FS_BUF_MAX); -} - -long -_fs_pad_length (long len) -{ - return len + padlength[len&3]; -} - -int -_fs_flush (FSFpePtr conn) -{ - long bytes_written; - long remain; - - /* XXX - hack. The right fix is to remember that the font server - has gone away when we first discovered it. */ - if (conn->fs_fd < 0) - return FSIO_ERROR; - - while ((remain = conn->outBuf.insert - conn->outBuf.remove) > 0) - { - bytes_written = _FontTransWrite(conn->trans_conn, - conn->outBuf.buf + conn->outBuf.remove, - (int) remain); - if (bytes_written > 0) - { - conn->outBuf.remove += bytes_written; - } - else - { - if (bytes_written == 0 || ETEST ()) - { - conn->brokenWriteTime = GetTimeInMillis () + FS_FLUSH_POLL; - _fs_mark_block (conn, FS_BROKEN_WRITE); - break; - } - if (!ECHECK (EINTR)) - { - _fs_connection_died (conn); - return FSIO_ERROR; - } - } - } - if (conn->outBuf.remove == conn->outBuf.insert) - { - _fs_unmark_block (conn, FS_BROKEN_WRITE|FS_PENDING_WRITE); - if (conn->outBuf.size > FS_BUF_INC) - conn->outBuf.buf = realloc (conn->outBuf.buf, FS_BUF_INC); - conn->outBuf.remove = conn->outBuf.insert = 0; - } - return FSIO_READY; -} - -static int -_fs_resize (FSBufPtr buf, long size) -{ - char *new; - long new_size; - - if (buf->remove) - { - if (buf->remove != buf->insert) - { - memmove (buf->buf, - buf->buf + buf->remove, - buf->insert - buf->remove); - } - buf->insert -= buf->remove; - buf->remove = 0; - } - if (buf->size - buf->remove < size) - { - new_size = ((buf->remove + size + FS_BUF_INC) / FS_BUF_INC) * FS_BUF_INC; - new = realloc (buf->buf, new_size); - if (!new) - return FSIO_ERROR; - buf->buf = new; - buf->size = new_size; - } - return FSIO_READY; -} - -static void -_fs_downsize (FSBufPtr buf, long size) -{ - if (buf->insert == buf->remove) - { - buf->insert = buf->remove = 0; - if (buf->size > size) - { - buf->buf = realloc (buf->buf, size); - buf->size = size; - } - } -} - -void -_fs_io_reinit (FSFpePtr conn) -{ - conn->outBuf.insert = conn->outBuf.remove = 0; - _fs_downsize (&conn->outBuf, FS_BUF_INC); - conn->inBuf.insert = conn->inBuf.remove = 0; - _fs_downsize (&conn->inBuf, FS_BUF_MAX); -} - -Bool -_fs_io_init (FSFpePtr conn) -{ - conn->outBuf.insert = conn->outBuf.remove = 0; - conn->outBuf.buf = malloc (FS_BUF_INC); - if (!conn->outBuf.buf) - return FALSE; - conn->outBuf.size = FS_BUF_INC; - - conn->inBuf.insert = conn->inBuf.remove = 0; - conn->inBuf.buf = malloc (FS_BUF_INC); - if (!conn->inBuf.buf) - { - free (conn->outBuf.buf); - conn->outBuf.buf = 0; - return FALSE; - } - conn->inBuf.size = FS_BUF_INC; - - return TRUE; -} - -void -_fs_io_fini (FSFpePtr conn) -{ - if (conn->outBuf.buf) - free (conn->outBuf.buf); - if (conn->inBuf.buf) - free (conn->inBuf.buf); -} - -static int -_fs_do_write(FSFpePtr conn, char *data, long len, long size) -{ - if (size == 0) { -#ifdef DEBUG - fprintf(stderr, "tried to write 0 bytes \n"); -#endif - return FSIO_READY; - } - - if (conn->fs_fd == -1) - return FSIO_ERROR; - - while (conn->outBuf.insert + size > conn->outBuf.size) - { - if (_fs_flush (conn) < 0) - return FSIO_ERROR; - if (_fs_resize (&conn->outBuf, size) < 0) - { - _fs_connection_died (conn); - return FSIO_ERROR; - } - } - memcpy (conn->outBuf.buf + conn->outBuf.insert, data, len); - /* Clear pad data */ - memset (conn->outBuf.buf + conn->outBuf.insert + len, 0, size - len); - conn->outBuf.insert += size; - _fs_mark_block (conn, FS_PENDING_WRITE); - return FSIO_READY; -} - -/* - * Write the indicated bytes - */ -int -_fs_write (FSFpePtr conn, char *data, long len) -{ - return _fs_do_write (conn, data, len, len); -} - -/* - * Write the indicated bytes adding any appropriate pad - */ -int -_fs_write_pad(FSFpePtr conn, char *data, long len) -{ - return _fs_do_write (conn, data, len, len + padlength[len & 3]); -} - -int -_fs_wait_for_readable(FSFpePtr conn, int ms) -{ - fd_set r_mask; - fd_set e_mask; - int result; - struct timeval tv; - - for (;;) { - if (conn->fs_fd < 0) - return FSIO_ERROR; - FD_ZERO(&r_mask); - FD_ZERO(&e_mask); - tv.tv_sec = ms / 1000; - tv.tv_usec = (ms % 1000) * 1000; - FD_SET(conn->fs_fd, &r_mask); - FD_SET(conn->fs_fd, &e_mask); - result = Select(conn->fs_fd + 1, &r_mask, NULL, &e_mask, &tv); - if (result < 0) - { - if (ECHECK(EINTR) || ECHECK(EAGAIN)) - continue; - else - return FSIO_ERROR; - } - if (result == 0) - return FSIO_BLOCK; - if (FD_ISSET(conn->fs_fd, &r_mask)) - return FSIO_READY; - return FSIO_ERROR; - } -} +/*
+ * Copyright 1990 Network Computing Devices
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Network Computing Devices not be
+ * used in advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission. Network Computing
+ * Devices makes no representations about the suitability of this software
+ * for any purpose. It is provided "as is" without express or implied
+ * warranty.
+ *
+ * NETWORK COMPUTING DEVICES DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
+ * IN NO EVENT SHALL NETWORK COMPUTING DEVICES BE LIABLE FOR ANY SPECIAL,
+ * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE
+ * OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Author: Dave Lemke, Network Computing Devices, Inc
+ */
+/*
+ * font server i/o routines
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#ifdef WIN32
+#define _WILLWINSOCK_
+#include "X11/Xwinsock.h"
+#include "X11/Xwindows.h"
+#endif
+
+#define FONT_t
+#define TRANS_CLIENT
+#include "X11/Xtrans/Xtrans.h"
+#include "X11/Xpoll.h"
+#include <X11/fonts/FS.h>
+#include <X11/fonts/FSproto.h>
+#include <X11/fonts/fontmisc.h>
+#include <X11/fonts/fontstruct.h>
+#include "fservestr.h"
+
+#include <stdio.h>
+#include <signal.h>
+#include <sys/types.h>
+#if !defined(WIN32)
+#ifndef Lynx
+#include <sys/socket.h>
+#else
+#include <socket.h>
+#endif
+#endif
+#include <errno.h>
+#ifdef WIN32
+#define EWOULDBLOCK WSAEWOULDBLOCK
+#undef EINTR
+#define EINTR WSAEINTR
+#endif
+
+
+
+static int padlength[4] = {0, 3, 2, 1};
+fd_set _fs_fd_mask;
+
+static int
+_fs_resize (FSBufPtr buf, long size);
+
+static void
+_fs_downsize (FSBufPtr buf, long size);
+
+int
+_fs_poll_connect (XtransConnInfo trans_conn, int timeout)
+{
+ fd_set w_mask;
+ struct timeval tv;
+ int fs_fd = _FontTransGetConnectionNumber (trans_conn);
+ int ret;
+
+ do
+ {
+ tv.tv_usec = 0;
+ tv.tv_sec = timeout;
+ FD_ZERO (&w_mask);
+ FD_SET (fs_fd, &w_mask);
+ ret = Select (fs_fd + 1, NULL, &w_mask, NULL, &tv);
+ } while (ret < 0 && ECHECK(EINTR));
+ if (ret == 0)
+ return FSIO_BLOCK;
+ if (ret < 0)
+ return FSIO_ERROR;
+ return FSIO_READY;
+}
+
+XtransConnInfo
+_fs_connect(char *servername, int *err)
+{
+ XtransConnInfo trans_conn; /* transport connection object */
+ int ret;
+ int i = 0;
+ int retries = 5;
+
+ /*
+ * Open the network connection.
+ */
+ if( (trans_conn=_FontTransOpenCOTSClient(servername)) == NULL )
+ {
+ *err = FSIO_ERROR;
+ return 0;
+ }
+
+ /*
+ * Set the connection non-blocking since we use select() to block.
+ */
+
+ _FontTransSetOption(trans_conn, TRANS_NONBLOCKING, 1);
+
+ do {
+ i = _FontTransConnect(trans_conn,servername);
+ } while ((i == TRANS_TRY_CONNECT_AGAIN) && (retries-- > 0));
+
+ if (i < 0)
+ {
+ if (i == TRANS_IN_PROGRESS)
+ ret = FSIO_BLOCK;
+ else
+ ret = FSIO_ERROR;
+ }
+ else
+ ret = FSIO_READY;
+
+ if (ret == FSIO_ERROR)
+ {
+ _FontTransClose(trans_conn);
+ trans_conn = 0;
+ }
+
+ *err = ret;
+ return trans_conn;
+}
+
+static int
+_fs_fill (FSFpePtr conn)
+{
+ long avail;
+ long bytes_read;
+ Bool waited = FALSE;
+
+ if (_fs_flush (conn) < 0)
+ return FSIO_ERROR;
+ /*
+ * Don't go overboard here; stop reading when we've
+ * got enough to satisfy the pending request
+ */
+ while ((conn->inNeed - (conn->inBuf.insert - conn->inBuf.remove)) > 0)
+ {
+ avail = conn->inBuf.size - conn->inBuf.insert;
+ /*
+ * For SVR4 with a unix-domain connection, ETEST() after selecting
+ * readable means the server has died. To do this here, we look for
+ * two consecutive reads returning ETEST().
+ */
+ ESET (0);
+ bytes_read =_FontTransRead(conn->trans_conn,
+ conn->inBuf.buf + conn->inBuf.insert,
+ avail);
+ if (bytes_read > 0) {
+ conn->inBuf.insert += bytes_read;
+ waited = FALSE;
+ }
+ else
+ {
+ if (bytes_read == 0 || ETEST ())
+ {
+ if (!waited)
+ {
+ waited = TRUE;
+ if (_fs_wait_for_readable (conn, 0) == FSIO_BLOCK)
+ return FSIO_BLOCK;
+ continue;
+ }
+ }
+ _fs_connection_died (conn);
+ return FSIO_ERROR;
+ }
+ }
+ return FSIO_READY;
+}
+
+/*
+ * Make space and return whether data have already arrived
+ */
+
+int
+_fs_start_read (FSFpePtr conn, long size, char **buf)
+{
+ int ret;
+
+ conn->inNeed = size;
+ if (fs_inqueued(conn) < size)
+ {
+ if (_fs_resize (&conn->inBuf, size) != FSIO_READY)
+ {
+ _fs_connection_died (conn);
+ return FSIO_ERROR;
+ }
+ ret = _fs_fill (conn);
+ if (ret == FSIO_ERROR)
+ return ret;
+ if (ret == FSIO_BLOCK || fs_inqueued(conn) < size)
+ return FSIO_BLOCK;
+ }
+ if (buf)
+ *buf = conn->inBuf.buf + conn->inBuf.remove;
+ return FSIO_READY;
+}
+
+void
+_fs_done_read (FSFpePtr conn, long size)
+{
+ if (conn->inBuf.insert - conn->inBuf.remove < size)
+ {
+#ifdef DEBUG
+ fprintf (stderr, "_fs_done_read skipping to many bytes\n");
+#endif
+ return;
+ }
+ conn->inBuf.remove += size;
+ conn->inNeed -= size;
+ _fs_downsize (&conn->inBuf, FS_BUF_MAX);
+}
+
+long
+_fs_pad_length (long len)
+{
+ return len + padlength[len&3];
+}
+
+int
+_fs_flush (FSFpePtr conn)
+{
+ long bytes_written;
+ long remain;
+
+ /* XXX - hack. The right fix is to remember that the font server
+ has gone away when we first discovered it. */
+ if (conn->fs_fd < 0)
+ return FSIO_ERROR;
+
+ while ((remain = conn->outBuf.insert - conn->outBuf.remove) > 0)
+ {
+ bytes_written = _FontTransWrite(conn->trans_conn,
+ conn->outBuf.buf + conn->outBuf.remove,
+ (int) remain);
+ if (bytes_written > 0)
+ {
+ conn->outBuf.remove += bytes_written;
+ }
+ else
+ {
+ if (bytes_written == 0 || ETEST ())
+ {
+ conn->brokenWriteTime = GetTimeInMillis () + FS_FLUSH_POLL;
+ _fs_mark_block (conn, FS_BROKEN_WRITE);
+ break;
+ }
+ if (!ECHECK (EINTR))
+ {
+ _fs_connection_died (conn);
+ return FSIO_ERROR;
+ }
+ }
+ }
+ if (conn->outBuf.remove == conn->outBuf.insert)
+ {
+ _fs_unmark_block (conn, FS_BROKEN_WRITE|FS_PENDING_WRITE);
+ if (conn->outBuf.size > FS_BUF_INC)
+ conn->outBuf.buf = realloc (conn->outBuf.buf, FS_BUF_INC);
+ conn->outBuf.remove = conn->outBuf.insert = 0;
+ }
+ return FSIO_READY;
+}
+
+static int
+_fs_resize (FSBufPtr buf, long size)
+{
+ char *new;
+ long new_size;
+
+ if (buf->remove)
+ {
+ if (buf->remove != buf->insert)
+ {
+ memmove (buf->buf,
+ buf->buf + buf->remove,
+ buf->insert - buf->remove);
+ }
+ buf->insert -= buf->remove;
+ buf->remove = 0;
+ }
+ if (buf->size - buf->remove < size)
+ {
+ new_size = ((buf->remove + size + FS_BUF_INC) / FS_BUF_INC) * FS_BUF_INC;
+ new = realloc (buf->buf, new_size);
+ if (!new)
+ return FSIO_ERROR;
+ buf->buf = new;
+ buf->size = new_size;
+ }
+ return FSIO_READY;
+}
+
+static void
+_fs_downsize (FSBufPtr buf, long size)
+{
+ if (buf->insert == buf->remove)
+ {
+ buf->insert = buf->remove = 0;
+ if (buf->size > size)
+ {
+ buf->buf = realloc (buf->buf, size);
+ buf->size = size;
+ }
+ }
+}
+
+void
+_fs_io_reinit (FSFpePtr conn)
+{
+ conn->outBuf.insert = conn->outBuf.remove = 0;
+ _fs_downsize (&conn->outBuf, FS_BUF_INC);
+ conn->inBuf.insert = conn->inBuf.remove = 0;
+ _fs_downsize (&conn->inBuf, FS_BUF_MAX);
+}
+
+Bool
+_fs_io_init (FSFpePtr conn)
+{
+ conn->outBuf.insert = conn->outBuf.remove = 0;
+ conn->outBuf.buf = malloc (FS_BUF_INC);
+ if (!conn->outBuf.buf)
+ return FALSE;
+ conn->outBuf.size = FS_BUF_INC;
+
+ conn->inBuf.insert = conn->inBuf.remove = 0;
+ conn->inBuf.buf = malloc (FS_BUF_INC);
+ if (!conn->inBuf.buf)
+ {
+ free (conn->outBuf.buf);
+ conn->outBuf.buf = 0;
+ return FALSE;
+ }
+ conn->inBuf.size = FS_BUF_INC;
+
+ return TRUE;
+}
+
+void
+_fs_io_fini (FSFpePtr conn)
+{
+ if (conn->outBuf.buf)
+ free (conn->outBuf.buf);
+ if (conn->inBuf.buf)
+ free (conn->inBuf.buf);
+}
+
+static int
+_fs_do_write(FSFpePtr conn, char *data, long len, long size)
+{
+ if (size == 0) {
+#ifdef DEBUG
+ fprintf(stderr, "tried to write 0 bytes \n");
+#endif
+ return FSIO_READY;
+ }
+
+ if (conn->fs_fd == -1)
+ return FSIO_ERROR;
+
+ while (conn->outBuf.insert + size > conn->outBuf.size)
+ {
+ if (_fs_flush (conn) < 0)
+ return FSIO_ERROR;
+ if (_fs_resize (&conn->outBuf, size) < 0)
+ {
+ _fs_connection_died (conn);
+ return FSIO_ERROR;
+ }
+ }
+ memcpy (conn->outBuf.buf + conn->outBuf.insert, data, len);
+ /* Clear pad data */
+ memset (conn->outBuf.buf + conn->outBuf.insert + len, 0, size - len);
+ conn->outBuf.insert += size;
+ _fs_mark_block (conn, FS_PENDING_WRITE);
+ return FSIO_READY;
+}
+
+/*
+ * Write the indicated bytes
+ */
+int
+_fs_write (FSFpePtr conn, char *data, long len)
+{
+ return _fs_do_write (conn, data, len, len);
+}
+
+/*
+ * Write the indicated bytes adding any appropriate pad
+ */
+int
+_fs_write_pad(FSFpePtr conn, char *data, long len)
+{
+ return _fs_do_write (conn, data, len, len + padlength[len & 3]);
+}
+
+int
+_fs_wait_for_readable(FSFpePtr conn, int ms)
+{
+ fd_set r_mask;
+ fd_set e_mask;
+ int result;
+ struct timeval tv;
+
+ for (;;) {
+ if (conn->fs_fd < 0)
+ return FSIO_ERROR;
+ FD_ZERO(&r_mask);
+ FD_ZERO(&e_mask);
+ tv.tv_sec = ms / 1000;
+ tv.tv_usec = (ms % 1000) * 1000;
+ FD_SET(conn->fs_fd, &r_mask);
+ FD_SET(conn->fs_fd, &e_mask);
+ result = Select(conn->fs_fd + 1, &r_mask, NULL, &e_mask, &tv);
+ if (result < 0)
+ {
+ if (ECHECK(EINTR) || ECHECK(EAGAIN))
+ continue;
+ else
+ return FSIO_ERROR;
+ }
+ if (result == 0)
+ return FSIO_BLOCK;
+ if (FD_ISSET(conn->fs_fd, &r_mask))
+ return FSIO_READY;
+ return FSIO_ERROR;
+ }
+}
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