dali/bacnet_stack
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Created new port for BSD/MAC OS X (ports/bsd). It supports only BACnet/IP. Thank you, Patrick!

Browse Source
This commit is contained in:
skarg
2013-03-06 17:32:20 +00:00
parent 54f880c527
commit 3a84572662
7 changed files with 907 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
bacnet-stack/ports/bsd/bip-init.c
+266
View File
@@ -0,0 +1,266 @@
/*####COPYRIGHTBEGIN####
-------------------------------------------
Copyright (C) 2005 Steve Karg
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.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA.
As a special exception, if other files instantiate templates or
use macros or inline functions from this file, or you compile
this file and link it with other works to produce a work based
on this file, this file does not by itself cause the resulting
work to be covered by the GNU General Public License. However
the source code for this file must still be made available in
accordance with section (3) of the GNU General Public License.
This exception does not invalidate any other reasons why a work
based on this file might be covered by the GNU General Public
License.
-------------------------------------------
####COPYRIGHTEND####*/
#include <stdint.h> /* for standard integer types uint8_t etc. */
#include <stdbool.h> /* for the standard bool type. */
#include "bacdcode.h"
#include "bip.h"
#include "net.h"
#include <ifaddrs.h>
/** @file linux/bip-init.c Initializes BACnet/IP interface (BSD/MAC OS X). */
bool BIP_Debug = true;
void *
get_addr_ptr (struct sockaddr * sockaddr_ptr)
{
void * addr_ptr;
if (sockaddr_ptr->sa_family == AF_INET) {
addr_ptr = &((struct sockaddr_in *) sockaddr_ptr)->sin_addr;
}
else if (sockaddr_ptr->sa_family == AF_INET6) {
addr_ptr = &((struct sockaddr_in6 *) sockaddr_ptr)->sin6_addr;
}
return addr_ptr;
}
/* gets an IP address by name, where name can be a
string that is an IP address in dotted form, or
a name that is a domain name
returns 0 if not found, or
an IP address in network byte order */
long bip_getaddrbyname(
const char *host_name)
{
struct hostent *host_ent;
if ((host_ent = gethostbyname(host_name)) == NULL)
return 0;
return *(long *) host_ent->h_addr;
}
/** Gets the local IP address and local broadcast address from the system,
* and saves it into the BACnet/IP data structures.
*
* @param ifname [in] The named interface to use for the network layer.
* Eg, for MAC OS X, ifname is en0, en1, and others.
* @param addr [out] The netmask addr, broadcast addr, ip addr.
* @param request [in] addr broadaddr netmask
*/
static int get_local_address(
char *ifname,struct in_addr *addr,char *request)
{
char rv; /* return value */
struct ifaddrs * ifaddrs_ptr;
int status;
status = getifaddrs (& ifaddrs_ptr);
if (status == -1) {
fprintf (stderr, "Error in 'getifaddrs': %d (%s)\n",
errno, strerror (errno));
}
while (ifaddrs_ptr) {
if ((ifaddrs_ptr->ifa_addr->sa_family == AF_INET) &&
(strcmp(ifaddrs_ptr->ifa_name, ifname) == 0)) {
void * addr_ptr;
if (! ifaddrs_ptr->ifa_addr) {
return rv;
}
if (strcmp(request, "addr") == 0) {
addr_ptr = get_addr_ptr (ifaddrs_ptr->ifa_addr);
}
else if (strcmp(request, "broadaddr") == 0) {
addr_ptr = get_addr_ptr (ifaddrs_ptr->ifa_broadaddr);
}
else if (strcmp(request, "netmask") == 0) {
addr_ptr = get_addr_ptr (ifaddrs_ptr->ifa_netmask);
}
if (addr_ptr) {
memcpy(addr, addr_ptr, sizeof(struct in_addr));
}
}
ifaddrs_ptr = ifaddrs_ptr->ifa_next;
}
freeifaddrs (ifaddrs_ptr);
return rv;
}
/** Gets the local IP address and local broadcast address from the system,
* and saves it into the BACnet/IP data structures.
*
* @param ifname [in] The named interface to use for the network layer.
* Eg, for MAC OS X, ifname is en0, en1, and others.
*/
void bip_set_interface(
char *ifname)
{
struct in_addr local_address;
struct in_addr broadcast_address;
int rv = 0;
/* setup local address */
char *request = "addr";
rv = get_local_address(ifname, &local_address, request);
if (rv < 0) {
local_address.s_addr = 0;
}
bip_set_addr(local_address.s_addr);
if (BIP_Debug) {
fprintf(stderr, "Interface: %s\n", ifname);
fprintf(stderr, "IP Address: %s\n", inet_ntoa(local_address));
}
/* setup local broadcast address */
request = "broadaddr";
rv = get_local_address(ifname, &broadcast_address, request);
if (rv < 0) {
broadcast_address.s_addr = ~0;
}
bip_set_broadcast_addr(broadcast_address.s_addr);
if (BIP_Debug) {
fprintf(stderr, "IP Broadcast Address: %s\n",
inet_ntoa(broadcast_address));
fprintf(stderr, "UDP Port: 0x%04X [%hu]\n", ntohs(bip_get_port()),
ntohs(bip_get_port()));
}
}
/** Initialize the BACnet/IP services at the given interface.
* @ingroup DLBIP
* -# Gets the local IP address and local broadcast address from the system,
* and saves it into the BACnet/IP data structures.
* -# Opens a UDP socket
* -# Configures the socket for sending and receiving
* -# Configures the socket so it can send broadcasts
* -# Binds the socket to the local IP address at the specified port for
* BACnet/IP (by default, 0xBAC0 = 47808).
*
* @note For MAC OS X, ifname is en0, en1, and others.
*
* @param ifname [in] The named interface to use for the network layer.
* If NULL, the "en0" interface is assigned.
* @return True if the socket is successfully opened for BACnet/IP,
* else False if the socket functions fail.
*/
bool bip_init(
char *ifname)
{
int status = 0; /* return from socket lib calls */
struct sockaddr_in sin;
int sockopt = 0;
int sock_fd = -1;
if (ifname) {
bip_set_interface(ifname);
printf("interface %s", ifname);
} else {
bip_set_interface("en0");
}
/* assumes that the driver has already been initialized */
sock_fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
bip_set_socket(sock_fd);
if (sock_fd < 0)
return false;
/* Allow us to use the same socket for sending and receiving */
/* This makes sure that the src port is correct when sending */
sockopt = 1;
status =
setsockopt(sock_fd, SOL_SOCKET, SO_REUSEADDR, &sockopt,
sizeof(sockopt));
if (status < 0) {
close(sock_fd);
bip_set_socket(-1);
return status;
}
/* allow us to send a broadcast */
status =
setsockopt(sock_fd, SOL_SOCKET, SO_BROADCAST, &sockopt,
sizeof(sockopt));
if (status < 0) {
close(sock_fd);
bip_set_socket(-1);
return false;
}
/* bind the socket to the local port number and IP address */
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl(INADDR_ANY);
sin.sin_port = bip_get_port();
memset(&(sin.sin_zero), '\0', sizeof(sin.sin_zero));
status =
bind(sock_fd, (const struct sockaddr *) &sin, sizeof(struct sockaddr));
if (status < 0) {
close(sock_fd);
bip_set_socket(-1);
return false;
}
return true;
}
/** Cleanup and close out the BACnet/IP services by closing the socket.
* @ingroup DLBIP
*/
void bip_cleanup(
void)
{
int sock_fd = 0;
if (bip_valid()) {
sock_fd = bip_socket();
close(sock_fd);
}
bip_set_socket(-1);
return;
}
/** Get the netmask of the BACnet/IP's interface via an getifaddrs() call.
* @param netmask [out] The netmask, in host order.
* @return 0 on success, else the error from the getifaddrs() call.
*/
int bip_get_local_netmask(
struct in_addr *netmask)
{
int rv;
char *ifname = getenv("BACNET_IFACE"); /* will probably be null */
if (ifname == NULL)
ifname = "en0";
printf("ifname %s",ifname);
char *request = "netmask";
rv = get_local_address(ifname, netmask, request);
return rv;
}
bacnet-stack/ports/bsd/main.c
+290
View File
@@ -0,0 +1,290 @@
/**************************************************************************
*
* Copyright (C) 2005 Steve Karg <skarg@users.sourceforge.net>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*********************************************************************/
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <time.h>
#include <stdbool.h>
#include "config.h"
#include "address.h"
#include "bacdef.h"
#include "handlers.h"
#include "client.h"
#include "bacdcode.h"
#include "npdu.h"
#include "apdu.h"
#include "iam.h"
#include "tsm.h"
#include "device.h"
#include "bacfile.h"
#include "datalink.h"
#include "net.h"
#include "txbuf.h"
#include "dlenv.h"
/** @file bsd/main.c Example application using the BACnet Stack on BSD/MAC OS X. */
bool Who_Is_Request = true;
/* buffers used for receiving */
static uint8_t Rx_Buf[MAX_MPDU] = { 0 };
static void LocalIAmHandler(
uint8_t * service_request,
uint16_t service_len,
BACNET_ADDRESS * src)
{
int len = 0;
uint32_t device_id = 0;
unsigned max_apdu = 0;
int segmentation = 0;
uint16_t vendor_id = 0;
(void) src;
(void) service_len;
len =
iam_decode_service_request(service_request, &device_id, &max_apdu,
&segmentation, &vendor_id);
fprintf(stderr, "Received I-Am Request");
if (len != -1) {
fprintf(stderr, " from %u!\n", device_id);
address_add(device_id, max_apdu, src);
} else
fprintf(stderr, "!\n");
return;
}
static void Read_Properties(
void)
{
uint32_t device_id = 0;
bool status = false;
unsigned max_apdu = 0;
BACNET_ADDRESS src;
bool next_device = false;
static unsigned index = 0;
static unsigned property = 0;
/* list of required (and some optional and proprietary)
properties in the Device Object. Note that this demo
tests for error messages so that the device doesn't have
to have all the properties listed here. */
const int object_props[] = {
PROP_OBJECT_IDENTIFIER,
PROP_OBJECT_NAME,
PROP_OBJECT_TYPE,
PROP_SYSTEM_STATUS,
PROP_VENDOR_NAME,
PROP_VENDOR_IDENTIFIER,
PROP_MODEL_NAME,
PROP_FIRMWARE_REVISION,
PROP_APPLICATION_SOFTWARE_VERSION,
PROP_PROTOCOL_VERSION,
PROP_PROTOCOL_SERVICES_SUPPORTED,
PROP_PROTOCOL_OBJECT_TYPES_SUPPORTED,
PROP_MAX_APDU_LENGTH_ACCEPTED,
PROP_SEGMENTATION_SUPPORTED,
PROP_LOCAL_TIME,
PROP_LOCAL_DATE,
PROP_UTC_OFFSET,
PROP_DAYLIGHT_SAVINGS_STATUS,
PROP_APDU_SEGMENT_TIMEOUT,
PROP_APDU_TIMEOUT,
PROP_NUMBER_OF_APDU_RETRIES,
PROP_TIME_SYNCHRONIZATION_RECIPIENTS,
PROP_MAX_MASTER,
PROP_MAX_INFO_FRAMES,
PROP_DEVICE_ADDRESS_BINDING,
/* note: PROP_OBJECT_LIST is missing because
the result can be very large. Read index 0
which gives us the number of objects in the list,
and then we can read index 1, 2.. n one by one,
rather than trying to read the entire object
list in one message. */
/* some proprietary properties */
514, 515,
/* end of list */
-1
};
if (address_count()) {
if (address_get_by_index(index, &device_id, &max_apdu, &src)) {
if (object_props[property] < 0)
next_device = true;
else {
/* note: if we wanted to do this synchronously, we would get the
invoke ID from the sending of the request, and wait until we
got the reply with matching invoke ID or the TSM of the
invoke ID expired. This demo is doing things asynchronously. */
status = Send_Read_Property_Request(device_id, /* destination device */
OBJECT_DEVICE, device_id, object_props[property],
BACNET_ARRAY_ALL);
if (status)
property++;
}
} else
next_device = true;
if (next_device) {
next_device = false;
index++;
if (index >= MAX_ADDRESS_CACHE)
index = 0;
property = 0;
}
}
return;
}
static void Init_Service_Handlers(
void)
{
Device_Init(NULL);
handler_read_property_object_set(OBJECT_DEVICE,
Device_Encode_Property_APDU, Device_Valid_Object_Instance_Number);
/* we need to handle who-is to support dynamic device binding */
apdu_set_unconfirmed_handler(SERVICE_UNCONFIRMED_WHO_IS, handler_who_is);
apdu_set_unconfirmed_handler(SERVICE_UNCONFIRMED_I_AM, LocalIAmHandler);
/* set the handler for all the services we don't implement */
/* It is required to send the proper reject message... */
apdu_set_unrecognized_service_handler_handler
(handler_unrecognized_service);
/* Set the handlers for any confirmed services that we support. */
/* We must implement read property - it's required! */
apdu_set_confirmed_handler(SERVICE_CONFIRMED_READ_PROPERTY,
handler_read_property);
/* handle the data coming back from confirmed requests */
apdu_set_confirmed_ack_handler(SERVICE_CONFIRMED_READ_PROPERTY,
handler_read_property_ack);
}
static void print_address_cache(
void)
{
unsigned i, j;
BACNET_ADDRESS address;
uint32_t device_id = 0;
unsigned max_apdu = 0;
fprintf(stderr, "Device\tMAC\tMaxAPDU\tNet\n");
for (i = 0; i < MAX_ADDRESS_CACHE; i++) {
if (address_get_by_index(i, &device_id, &max_apdu, &address)) {
fprintf(stderr, "%u\t", device_id);
for (j = 0; j < address.mac_len; j++) {
fprintf(stderr, "%02X", address.mac[j]);
}
fprintf(stderr, "\t");
fprintf(stderr, "%hu\t", max_apdu);
fprintf(stderr, "%hu\n", address.net);
}
}
}
static void print_tsm_stats(
void)
{
int idle = 0;
int total = 0;
idle = tsm_transaction_idle_count();
total = MAX_TSM_TRANSACTIONS;
fprintf(stderr, "TSM: %d idle of %d transactions\n", idle, total);
}
static void sig_handler(
int signo)
{
datalink_cleanup();
print_address_cache();
print_tsm_stats();
exit(0);
}
int main(
int argc,
char *argv[])
{
BACNET_ADDRESS src = { 0 }; /* address where message came from */
uint16_t pdu_len = 0;
unsigned timeout = 100; /* milliseconds */
unsigned count = 0; /* milliseconds */
time_t start_time;
time_t new_time = 0;
start_time = time(NULL); /* get current time */
/* Linux specials */
signal(SIGINT, sig_handler);
signal(SIGHUP, sig_handler);
signal(SIGTERM, sig_handler);
/* setup this BACnet Server device */
Device_Set_Object_Instance_Number(111);
Init_Service_Handlers();
dlenv_init();
/* loop forever */
for (;;) {
/* input */
new_time = time(NULL);
/* returns 0 bytes on timeout */
pdu_len = datalink_receive(&src, &Rx_Buf[0], MAX_MPDU, timeout);
/* process */
if (pdu_len) {
npdu_handler(&src, &Rx_Buf[0], pdu_len);
}
if (new_time > start_time) {
tsm_timer_milliseconds(new_time - start_time * 1000);
start_time = new_time;
}
if (I_Am_Request) {
I_Am_Request = false;
Send_I_Am(&Handler_Transmit_Buffer[0]);
} else if (Who_Is_Request) {
Who_Is_Request = false;
Send_WhoIs(-1, -1);
}
/* output */
/* some round robin task switching */
count++;
switch (count) {
case 1:
/* used for testing, but kind of noisy on the network */
/*Read_Properties(); */
break;
case 2:
break;
default:
count = 0;
break;
}
/* blink LEDs, Turn on or off outputs, etc */
}
return 0;
}
bacnet-stack/ports/bsd/net.h
+99
View File
@@ -0,0 +1,99 @@
/**************************************************************************
*
* Copyright (C) 2005 Steve Karg <skarg@users.sourceforge.net>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*********************************************************************/
#ifndef NET_H
#define NET_H
/* common unix sockets headers needed */
#include <sys/types.h> /* basic system data types */
#include <sys/time.h> /* timeval{} for select() */
#include <time.h> /* timespec{} for pselect() */
#include <netinet/in.h> /* sockaddr_in{} and other Internet defns */
#include <arpa/inet.h> /* inet(3) functions */
#include <fcntl.h> /* for nonblocking */
#include <netdb.h>
#include <errno.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h> /* for S_xxx file mode constants */
#include <sys/uio.h> /* for iovec{} and readv/writev */
#include <unistd.h>
#include <sys/wait.h>
#include <sys/un.h> /* for Unix domain sockets */
#ifdef HAVE_SYS_SELECT_H
# include <sys/select.h> /* for convenience */
#endif
#ifdef HAVE_POLL_H
# include <poll.h> /* for convenience */
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h> /* for convenience */
#endif
/* Three headers are normally needed for socket/file ioctl's:
* <sys/ioctl.h>, <sys/filio.h>, and <sys/sockio.h>.
*/
#ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif
#ifdef HAVE_SYS_FILIO_H
# include <sys/filio.h>
#endif
#ifdef HAVE_SYS_SOCKIO_H
# include <sys/sockio.h>
#endif
#include <pthread.h>
#include <semaphore.h>
#define ENUMS
#include <sys/socket.h>
#include <net/route.h>
#include <net/if.h>
#include <net/if_var.h>
#include <net/if_arp.h>
#include <net/if_dl.h>
#include <ifaddrs.h>
#include <net/ethernet.h> /* the L2 protocols */
#include <netinet/in.h>
#include <netinet/in_var.h>
#include <arpa/inet.h>
#include <sys/un.h>
#include <sys/ioctl.h>
#include <netdb.h>
/** @file bsd/net.h Includes BSD network headers. */
/* Local helper functions for this port */
extern int bip_get_local_netmask(
struct in_addr *netmask);
#endif
bacnet-stack/ports/bsd/readme.txt
+2
View File
@@ -0,0 +1,2 @@
This is a port to MAC OS X for testing.
The unit tests can be run via the test.sh script.
bacnet-stack/ports/bsd/stdbool.h
+29
View File
@@ -0,0 +1,29 @@
#ifndef STDBOOL_H
#define STDBOOL_H
/* C99 Boolean types for compilers without C99 support */
#ifndef __cplusplus
/*typedef int _Bool; */
#ifndef bool
#define bool _Bool
#endif
#ifndef true
#define true 1
#endif
#ifndef false
#define false 0
#endif
#define __bool_true_false_are_defined 1
#endif
#ifndef FALSE
#define FALSE 0
#endif
#ifndef TRUE
#define TRUE 1
#endif
#endif
bacnet-stack/ports/bsd/timer.c
+156
View File
@@ -0,0 +1,156 @@
/**************************************************************************
*
* Copyright (C) 2009 Steve Karg <skarg@users.sourceforge.net>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*********************************************************************/
#include <stdio.h>
#include <stdbool.h>
#include <stdint.h>
#include <time.h>
#include "timer.h"
#include <mach/clock.h>
#include <mach/mach.h>
/** @file bsd/timer.c Provides BSD-specific time and timer functions. */
/* counter for the various timers */
static volatile uint32_t Millisecond_Counter[MAX_MILLISECOND_TIMERS];
/* start time for the clock */
static struct timespec start;
/* The timeGetTime function retrieves the system time, in milliseconds.
The system time is the time elapsed since Windows was started. */
uint32_t timeGetTime(
void)
{
struct timespec now;
uint32_t ticks;
// clock_gettime(CLOCK_MONOTONIC, &now);
clock_serv_t cclock;
mach_timespec_t mts;
host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
clock_get_time(cclock, &mts);
mach_port_deallocate(mach_task_self(), cclock);
now.tv_sec = mts.tv_sec;
now.tv_nsec = mts.tv_nsec;
ticks =
(now.tv_sec - start.tv_sec) * 1000 + (now.tv_nsec -
start.tv_nsec) / 1000000;
return ticks;
}
/*************************************************************************
* Description: returns the current millisecond count
* Returns: none
* Notes: none
*************************************************************************/
uint32_t timer_milliseconds(
unsigned index)
{
uint32_t now = timeGetTime();
uint32_t delta_time = 0;
if (index < MAX_MILLISECOND_TIMERS) {
if (Millisecond_Counter[index] <= now) {
delta_time = now - Millisecond_Counter[index];
} else {
delta_time = (UINT32_MAX - Millisecond_Counter[index]) + now + 1;
}
}
return delta_time;
}
/*************************************************************************
* Description: compares the current time count with a value
* Returns: true if the time has elapsed
* Notes: none
*************************************************************************/
bool timer_elapsed_milliseconds(
unsigned index,
uint32_t value)
{
return (timer_milliseconds(index) >= value);
}
/*************************************************************************
* Description: compares the current time count with a value
* Returns: true if the time has elapsed
* Notes: none
*************************************************************************/
bool timer_elapsed_seconds(
unsigned index,
uint32_t seconds)
{
return ((timer_milliseconds(index) / 1000) >= seconds);
}
/*************************************************************************
* Description: compares the current time count with a value
* Returns: true if the time has elapsed
* Notes: none
*************************************************************************/
bool timer_elapsed_minutes(
unsigned index,
uint32_t minutes)
{
return ((timer_milliseconds(index) / (1000 * 60)) >= minutes);
}
/*************************************************************************
* Description: Sets the timer counter to zero.
* Returns: none
* Notes: none
*************************************************************************/
uint32_t timer_reset(
unsigned index)
{
uint32_t timer_value = 0;
if (index < MAX_MILLISECOND_TIMERS) {
timer_value = timer_milliseconds(index);
Millisecond_Counter[index] = timeGetTime();
}
return timer_value;
}
/*************************************************************************
* Description: Initialization for timer
* Returns: none
* Notes: none
*************************************************************************/
void timer_init(
void)
{
//clock_gettime(CLOCK_MONOTONIC, &start);
clock_serv_t cclock;
mach_timespec_t mts;
host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
clock_get_time(cclock, &mts);
mach_port_deallocate(mach_task_self(), cclock);
start.tv_sec = mts.tv_sec;
start.tv_nsec = mts.tv_nsec;
}
bacnet-stack/ports/bsd/timer.h
+65
View File
@@ -0,0 +1,65 @@
/**************************************************************************
*
* Copyright (C) 2009 Steve Karg <skarg@users.sourceforge.net>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*********************************************************************/
#ifndef TIMER_H
#define TIMER_H
#include <stdbool.h>
#include <stdint.h>
#include <sys/time.h> /* for timeval */
/* Timer Module */
#ifndef MAX_MILLISECOND_TIMERS
#define TIMER_SILENCE 0
#define MAX_MILLISECOND_TIMERS 1
#endif
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
uint32_t timeGetTime(
void);
void timer_init(
void);
uint32_t timer_milliseconds(
unsigned index);
bool timer_elapsed_milliseconds(
unsigned index,
uint32_t value);
bool timer_elapsed_seconds(
unsigned index,
uint32_t value);
bool timer_elapsed_minutes(
unsigned index,
uint32_t seconds);
uint32_t timer_milliseconds_set(
unsigned index,
uint32_t value);
uint32_t timer_reset(
unsigned index);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif