+// SPDX-License-Identifier: GPL-2.0-or-later
+
/***************************************************************************
* Copyright (C) 2006 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
+ * Copyright (C) 2007,2008 Øyvind Harboe *
+ * oyvind.harboe@zylin.com *
* *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * Copyright (C) 2008 by Spencer Oliver *
+ * spen@spen-soft.co.uk *
***************************************************************************/
+/* DANGER!!!! These must be defined *BEFORE* replacements.h and the malloc() macro!!!! */
+
+#include <stdlib.h>
+#include <string.h>
+/*
+ * clear_malloc
+ *
+ * will alloc memory and clear it
+ */
+void *clear_malloc(size_t size)
+{
+ void *t = malloc(size);
+ if (t)
+ memset(t, 0x00, size);
+ return t;
+}
+
+void *fill_malloc(size_t size)
+{
+ void *t = malloc(size);
+ if (t) {
+ /* We want to initialize memory to some known bad state.
+ * 0 and 0xff yields 0 and -1 as integers, which often
+ * have meaningful values. 0x5555... is not often a valid
+ * integer and is quite easily spotted in the debugger
+ * also it is almost certainly an invalid address */
+ memset(t, 0x55, size);
+ }
+ return t;
+}
+
+#define IN_REPLACEMENTS_C
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
-#include "replacements.h"
-
-#include <stdio.h>
+#ifdef _WIN32
+#include <io.h>
+#include <winsock2.h>
+#endif
/* replacements for gettimeofday */
#ifndef HAVE_GETTIMEOFDAY
int gettimeofday(struct timeval *tv, struct timezone *tz)
{
- FILETIME ft;
- LARGE_INTEGER li;
- __int64 t;
- static int tzflag;
+ FILETIME ft;
+ LARGE_INTEGER li;
+ __int64 t;
+ static int tzflag;
- if (tv)
- {
+ if (tv) {
GetSystemTimeAsFileTime(&ft);
li.LowPart = ft.dwLowDateTime;
li.HighPart = ft.dwHighDateTime;
- t = li.QuadPart; /* In 100-nanosecond intervals */
- t -= EPOCHFILETIME; /* Offset to the Epoch time */
- t /= 10; /* In microseconds */
+ t = li.QuadPart; /* In 100-nanosecond intervals */
+ t -= EPOCHFILETIME; /* Offset to the Epoch time */
+ t /= 10; /* In microseconds */
tv->tv_sec = (long)(t / 1000000);
tv->tv_usec = (long)(t % 1000000);
}
- if (tz)
- {
- if (!tzflag)
- {
+ if (tz) {
+ if (!tzflag) {
_tzset();
tzflag++;
}
return 0;
}
-#endif /* _WIN32 */
+#endif /* _WIN32 */
-#endif /* HAVE_GETTIMEOFDAY */
+#endif /* HAVE_GETTIMEOFDAY */
#ifndef HAVE_STRNLEN
size_t strnlen(const char *s, size_t maxlen)
{
- const char *end= (const char *)memchr(s, '\0', maxlen);
+ const char *end = (const char *)memchr(s, '\0', maxlen);
return end ? (size_t) (end - s) : maxlen;
}
#endif
#ifndef HAVE_STRNDUP
-char* strndup(const char *s, size_t n)
+char *strndup(const char *s, size_t n)
{
- size_t len = strnlen (s, n);
- char *new = (char *) malloc (len + 1);
+ size_t len = strnlen(s, n);
+ char *new = malloc(len + 1);
- if (new == NULL)
+ if (!new)
return NULL;
new[len] = '\0';
- return (char *) memcpy (new, s, len);
+ return (char *) memcpy(new, s, len);
+}
+#endif
+
+#ifdef _WIN32
+int win_select(int max_fd, fd_set *rfds, fd_set *wfds, fd_set *efds, struct timeval *tv)
+{
+ DWORD ms_total, limit;
+ HANDLE handles[MAXIMUM_WAIT_OBJECTS];
+ int handle_slot_to_fd[MAXIMUM_WAIT_OBJECTS];
+ int n_handles = 0, i;
+ fd_set sock_read, sock_write, sock_except;
+ fd_set aread, awrite, aexcept;
+ int sock_max_fd = -1;
+ struct timeval tvslice;
+ int retcode;
+
+#define SAFE_FD_ISSET(fd, set) (set && FD_ISSET(fd, set))
+
+ /* calculate how long we need to wait in milliseconds */
+ if (!tv)
+ ms_total = INFINITE;
+ else {
+ ms_total = tv->tv_sec * 1000;
+ ms_total += tv->tv_usec / 1000;
+ }
+
+ FD_ZERO(&sock_read);
+ FD_ZERO(&sock_write);
+ FD_ZERO(&sock_except);
+
+ /* build an array of handles for non-sockets */
+ for (i = 0; i < max_fd; i++) {
+ if (SAFE_FD_ISSET(i, rfds) || SAFE_FD_ISSET(i, wfds) || SAFE_FD_ISSET(i, efds)) {
+ intptr_t handle = (intptr_t) _get_osfhandle(i);
+ handles[n_handles] = (HANDLE)handle;
+ if (handles[n_handles] == INVALID_HANDLE_VALUE) {
+ /* socket */
+ if (SAFE_FD_ISSET(i, rfds))
+ FD_SET(i, &sock_read);
+ if (SAFE_FD_ISSET(i, wfds))
+ FD_SET(i, &sock_write);
+ if (SAFE_FD_ISSET(i, efds))
+ FD_SET(i, &sock_except);
+ if (i > sock_max_fd)
+ sock_max_fd = i;
+ } else {
+ handle_slot_to_fd[n_handles] = i;
+ n_handles++;
+ }
+ }
+ }
+
+ if (n_handles == 0) {
+ /* plain sockets only - let winsock handle the whole thing */
+ return select(max_fd, rfds, wfds, efds, tv);
+ }
+
+ /* mixture of handles and sockets; lets multiplex between
+ * winsock and waiting on the handles */
+
+ FD_ZERO(&aread);
+ FD_ZERO(&awrite);
+ FD_ZERO(&aexcept);
+
+ limit = GetTickCount() + ms_total;
+ do {
+ retcode = 0;
+
+ if (sock_max_fd >= 0) {
+ /* overwrite the zero'd sets here; the select call
+ * will clear those that are not active */
+ aread = sock_read;
+ awrite = sock_write;
+ aexcept = sock_except;
+
+ tvslice.tv_sec = 0;
+ tvslice.tv_usec = 1000;
+
+ retcode = select(sock_max_fd + 1, &aread, &awrite, &aexcept, &tvslice);
+ }
+
+ if (n_handles > 0) {
+ /* check handles */
+ DWORD wret;
+
+ wret = MsgWaitForMultipleObjects(n_handles,
+ handles,
+ FALSE,
+ retcode > 0 ? 0 : 1,
+ QS_ALLEVENTS);
+
+ if (wret == WAIT_TIMEOUT) {
+ /* set retcode to 0; this is the default.
+ * select() may have set it to something else,
+ * in which case we leave it alone, so this branch
+ * does nothing */
+ ;
+ } else if (wret == WAIT_FAILED) {
+ if (retcode == 0)
+ retcode = -1;
+ } else {
+ if (retcode < 0)
+ retcode = 0;
+ for (i = 0; i < n_handles; i++) {
+ if (WaitForSingleObject(handles[i], 0) == WAIT_OBJECT_0) {
+ if (SAFE_FD_ISSET(handle_slot_to_fd[i], rfds)) {
+ DWORD bytes;
+ intptr_t handle = (intptr_t) _get_osfhandle(
+ handle_slot_to_fd[i]);
+
+ if (PeekNamedPipe((HANDLE)handle, NULL, 0,
+ NULL, &bytes, NULL)) {
+ /* check to see if gdb pipe has data available */
+ if (bytes) {
+ FD_SET(handle_slot_to_fd[i], &aread);
+ retcode++;
+ }
+ } else {
+ FD_SET(handle_slot_to_fd[i], &aread);
+ retcode++;
+ }
+ }
+ if (SAFE_FD_ISSET(handle_slot_to_fd[i], wfds)) {
+ FD_SET(handle_slot_to_fd[i], &awrite);
+ retcode++;
+ }
+ if (SAFE_FD_ISSET(handle_slot_to_fd[i], efds)) {
+ FD_SET(handle_slot_to_fd[i], &aexcept);
+ retcode++;
+ }
+ }
+ }
+ }
+ }
+ } while (retcode == 0 && (ms_total == INFINITE || GetTickCount() < limit));
+
+ if (rfds)
+ *rfds = aread;
+ if (wfds)
+ *wfds = awrite;
+ if (efds)
+ *efds = aexcept;
+
+ return retcode;
}
#endif
projects / fw / openocd / blobdiff