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/*
* Copyright (c) 2019 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <parc/windows/parc_Utils.h>
#include <Windows.h>
#include <stdint.h>
#include <stdio.h>
#ifndef _vscprintf
/* For some reason, MSVC fails to honour this #ifndef. */
/* Hence function renamed to _vscprintf_so(). */
int _vscprintf_so(const char *format, va_list pargs)
{
int retval;
va_list argcopy;
va_copy(argcopy, pargs);
retval = vsnprintf(NULL, 0, format, argcopy);
va_end(argcopy);
return retval;
}
#endif // _vscprintf
#ifndef vasprintf
int vasprintf(char **strp, const char *fmt, va_list ap)
{
int len = _vscprintf_so(fmt, ap);
if (len == -1)
return -1;
char *str = malloc((size_t)len + 1);
if (!str)
return -1;
int r = vsnprintf(str, len + 1, fmt, ap); /* "secure" version of vsprintf */
if (r == -1)
return free(str), -1;
*strp = str;
return r;
}
#endif // vasprintf
#ifndef dprintf
int dprintf(int fd, char *fmt, ...) {
va_list ap;
FILE *f = _fdopen( fd, "rw" );
int rc;
va_start(ap, &fmt);
rc = vfprintf(f, fmt, ap);
fclose(f);
va_end(ap);
return rc;
}
#endif
#ifndef asprintf
int asprintf(char *strp[], const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
int r = vasprintf(strp, fmt, ap);
va_end(ap);
return r;
}
#endif // asprintf
int gettimeofday(struct timeval * tp, struct timezone * tzp)
{
// Note: some broken versions only have 8 trailing zero's, the correct epoch has 9 trailing zero's
// This magic number is the number of 100 nanosecond intervals since January 1, 1601 (UTC)
// until 00:00:00 January 1, 1970
static const uint64_t EPOCH = ((uint64_t) 116444736000000000ULL);
SYSTEMTIME system_time;
FILETIME file_time;
uint64_t time;
GetSystemTime( &system_time );
SystemTimeToFileTime( &system_time, &file_time );
time = ((uint64_t)file_time.dwLowDateTime ) ;
time += ((uint64_t)file_time.dwHighDateTime) << 32;
tp->tv_sec = (long) ((time - EPOCH) / 10000000L);
tp->tv_usec = (long) (system_time.wMilliseconds * 1000);
return 0;
}
#ifndef strndup
char *strndup(const char *str, size_t chars)
{
char *buffer;
int n;
buffer = (char *) malloc(chars +1);
if (buffer)
{
for (n = 0; ((n < chars) && (str[n] != 0)) ; n++) buffer[n] = str[n];
buffer[n] = 0;
}
return buffer;
}
#endif
void usleep(__int64 usec)
{
HANDLE timer;
LARGE_INTEGER ft;
ft.QuadPart = -(10 * usec); // Convert to 100 nanosecond interval, negative value indicates relative time
timer = CreateWaitableTimer(NULL, TRUE, NULL);
SetWaitableTimer(timer, &ft, 0, NULL, NULL, 0);
WaitForSingleObject(timer, INFINITE);
CloseHandle(timer);
}
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