mirror of
https://github.com/servalproject/serval-dna.git
synced 2024-12-19 05:07:56 +00:00
d3c2205d44
The new header "os.h" defines a supplemental API around existing basic operating system services (system calls and standard library functions). Moved some function prototypes from serval.h and net.h into os.h. This allows non-servald executables to take advantage of this API without having to include serval.h and bringing in all the other servald link-time baggage.
65 lines
2.1 KiB
C
65 lines
2.1 KiB
C
/*
|
|
Serval DNA native Operating System interface
|
|
Copyright (C) 2012 Serval Project Inc.
|
|
|
|
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.
|
|
|
|
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <sys/types.h>
|
|
|
|
#ifndef __SERVALDNA_OS_H
|
|
#define __SERVALDNA_OS_H
|
|
|
|
/* All wall clock times in the Serval daemon are represented in milliseconds
|
|
* since the Unix epoch. The gettime_ms() function uses gettimeofday(2) to
|
|
* return this value when called. The time_ms_t typedef should be used
|
|
* wherever this time value is handled or stored.
|
|
*
|
|
* This type could perfectly well be unsigned, but is defined as signed to
|
|
* avoid the need to cast or define a special signed timedelta_ms_t type at **
|
|
* (1):
|
|
*
|
|
* static time_ms_t then = 0;
|
|
* time_ms_t now = gettime_ms();
|
|
* time_ms_t ago = now - then; // ** (1)
|
|
* if (then && ago < 0) {
|
|
* ... time going backwards ...
|
|
* } else {
|
|
* ... time has advanced ...
|
|
* then = now;
|
|
* }
|
|
*/
|
|
typedef long long time_ms_t;
|
|
|
|
time_ms_t gettime_ms();
|
|
time_ms_t sleep_ms(time_ms_t milliseconds);
|
|
|
|
/* bzero(3) is deprecated in favour of memset(3). */
|
|
#define bzero(addr,len) memset((addr), 0, (len))
|
|
|
|
/* OpenWRT libc doesn't have bcopy, but has memmove */
|
|
#define bcopy(A,B,C) memmove(B,A,C)
|
|
|
|
int mkdirs(const char *path, mode_t mode);
|
|
int mkdirsn(const char *path, size_t len, mode_t mode);
|
|
|
|
void srandomdev();
|
|
int urandombytes(unsigned char *buf, unsigned long long len);
|
|
|
|
#endif //__SERVALDNA_OS_H
|