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author | marha <marha@users.sourceforge.net> | 2011-09-12 11:27:51 +0200 |
---|---|---|
committer | marha <marha@users.sourceforge.net> | 2011-09-12 11:27:51 +0200 |
commit | dafebc5bb70303f0b5baf0b087cf4d9a64b5c7f0 (patch) | |
tree | bdf833cc6a4fc9035411779e10dd9e8478201885 /libXfont/src/fc/fsio.c | |
parent | 0b40f5f4b54453a77f4b09c431f8efc6875da61f (diff) | |
download | vcxsrv-dafebc5bb70303f0b5baf0b087cf4d9a64b5c7f0.tar.gz vcxsrv-dafebc5bb70303f0b5baf0b087cf4d9a64b5c7f0.tar.bz2 vcxsrv-dafebc5bb70303f0b5baf0b087cf4d9a64b5c7f0.zip |
Synchronised line endinge with release branch
Diffstat (limited to 'libXfont/src/fc/fsio.c')
-rw-r--r-- | libXfont/src/fc/fsio.c | 904 |
1 files changed, 452 insertions, 452 deletions
diff --git a/libXfont/src/fc/fsio.c b/libXfont/src/fc/fsio.c index 29c0d7d26..552c5e62e 100644 --- a/libXfont/src/fc/fsio.c +++ b/libXfont/src/fc/fsio.c @@ -1,452 +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/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;
- }
-}
+/* + * 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; + } +} |