direwolf/direwolf.h

313 lines
7.7 KiB
C

/* direwolf.h - Common stuff used many places. */
// TODO: include this file first before anything else in each .c file.
#ifndef DIREWOLF_H
#define DIREWOLF_H 1
/*
* Support Windows XP and later.
*
* We need this before "#include <ws2tcpip.h>".
*
* Don't know what other impact it might have on others.
*/
#if __WIN32__
#ifdef _WIN32_WINNT
#error Include "direwolf.h" before any windows system files.
#endif
#ifdef WINVER
#error Include "direwolf.h" before any windows system files.
#endif
#define _WIN32_WINNT 0x0501 /* Minimum OS version is XP. */
#define WINVER 0x0501 /* Minimum OS version is XP. */
#include <windows.h>
#endif
/*
* Previously, we could handle only a single audio device.
* This meant we could have only two radio channels.
* In version 1.2, we relax this restriction and allow more audio devices.
* Three is probably adequate for standard version.
* Larger reasonable numbers should also be fine.
*
* For example, if you wanted to use 4 audio devices at once, change this to 4.
*/
#define MAX_ADEVS 3
/*
* Maximum number of radio channels.
* Note that there could be gaps.
* Suppose audio device 0 was in mono mode and audio device 1 was stereo.
* The channels available would be:
*
* ADevice 0: channel 0
* ADevice 1: left = 2, right = 3
*
* TODO1.2: Look for any places that have
* for (ch=0; ch<MAX_CHANS; ch++) ...
* and make sure they handle undefined channels correctly.
*/
#define MAX_CHANS ((MAX_ADEVS) * 2)
/*
* Maximum number of rigs.
*/
#ifdef USE_HAMLIB
#define MAX_RIGS MAX_CHANS
#endif
/*
* Get audio device number for given channel.
* and first channel for given device.
*/
#define ACHAN2ADEV(n) ((n)>>1)
#define ADEVFIRSTCHAN(n) ((n) * 2)
/*
* Maximum number of modems per channel.
* I called them "subchannels" (in the code) because
* it is short and unambiguous.
* Nothing magic about the number. Could be larger
* but CPU demands might be overwhelming.
*/
#define MAX_SUBCHANS 9
/*
* Each one of these can have multiple slicers, at
* different levels, to compensate for different
* amplitudes of the AFSK tones.
* Intially used same number as subchannels but
* we could probably trim this down a little
* without impacting performance.
*/
#define MAX_SLICERS 9
#if __WIN32__
#define SLEEP_SEC(n) Sleep((n)*1000)
#define SLEEP_MS(n) Sleep(n)
#else
#define SLEEP_SEC(n) sleep(n)
#define SLEEP_MS(n) usleep((n)*1000)
#endif
#if __WIN32__
#define PTW32_STATIC_LIB
//#include "pthreads/pthread.h"
#define gmtime_r( _clock, _result ) \
( *(_result) = *gmtime( (_clock) ), \
(_result) )
#else
#include <pthread.h>
#endif
#ifdef __APPLE__
// https://groups.yahoo.com/neo/groups/direwolf_packet/conversations/messages/2072
// The original suggestion was to add this to only ptt.c.
// I thought it would make sense to put it here, so it will apply to all files,
// consistently, rather than only one file ptt.c.
// The placement of this is critical. Putting it earlier was a problem.
// https://github.com/wb2osz/direwolf/issues/113
// It needs to be after the include pthread.h because
// pthread.h pulls in <sys/cdefs.h>, which redefines __DARWIN_C_LEVEL back to ansi,
// which breaks things.
// Maybe it should just go in ptt.c as originally suggested.
// #define __DARWIN_C_LEVEL __DARWIN_C_FULL
// There is a more involved patch here:
// https://groups.yahoo.com/neo/groups/direwolf_packet/conversations/messages/2458
#ifndef _DARWIN_C_SOURCE
#define _DARWIN_C_SOURCE
#endif
// Defining _DARWIN_C_SOURCE ensures that the definition for the cfmakeraw function (or similar)
// are pulled in through the include file <sys/termios.h>.
#ifdef __DARWIN_C_LEVEL
#undef __DARWIN_C_LEVEL
#endif
#define __DARWIN_C_LEVEL __DARWIN_C_FULL
#endif
/* Not sure where to put these. */
/* Prefix with DW_ because /usr/include/gps.h uses a couple of these names. */
#ifndef G_UNKNOWN
#include "latlong.h"
#endif
#define DW_METERS_TO_FEET(x) ((x) == G_UNKNOWN ? G_UNKNOWN : (x) * 3.2808399)
#define DW_FEET_TO_METERS(x) ((x) == G_UNKNOWN ? G_UNKNOWN : (x) * 0.3048)
#define DW_KM_TO_MILES(x) ((x) == G_UNKNOWN ? G_UNKNOWN : (x) * 0.621371192)
#define DW_KNOTS_TO_MPH(x) ((x) == G_UNKNOWN ? G_UNKNOWN : (x) * 1.15077945)
#define DW_KNOTS_TO_METERS_PER_SEC(x) ((x) == G_UNKNOWN ? G_UNKNOWN : (x) * 0.51444444444)
#define DW_MPH_TO_KNOTS(x) ((x) == G_UNKNOWN ? G_UNKNOWN : (x) * 0.868976)
#define DW_MPH_TO_METERS_PER_SEC(x) ((x) == G_UNKNOWN ? G_UNKNOWN : (x) * 0.44704)
#define DW_MBAR_TO_INHG(x) ((x) == G_UNKNOWN ? G_UNKNOWN : (x) * 0.0295333727)
#if __WIN32__
typedef CRITICAL_SECTION dw_mutex_t;
#define dw_mutex_init(x) \
InitializeCriticalSection (x)
/* This one waits for lock. */
#define dw_mutex_lock(x) \
EnterCriticalSection (x)
/* Returns non-zero if lock was obtained. */
#define dw_mutex_try_lock(x) \
TryEnterCriticalSection (x)
#define dw_mutex_unlock(x) \
LeaveCriticalSection (x)
#else
typedef pthread_mutex_t dw_mutex_t;
#define dw_mutex_init(x) pthread_mutex_init (x, NULL)
/* this one will wait. */
#define dw_mutex_lock(x) \
{ \
int err; \
err = pthread_mutex_lock (x); \
if (err != 0) { \
text_color_set(DW_COLOR_ERROR); \
dw_printf ("INTERNAL ERROR %s %d pthread_mutex_lock returned %d", __FILE__, __LINE__, err); \
exit (1); \
} \
}
/* This one returns true if lock successful, false if not. */
/* pthread_mutex_trylock returns 0 for success. */
#define dw_mutex_try_lock(x) \
({ \
int err; \
err = pthread_mutex_trylock (x); \
if (err != 0 && err != EBUSY) { \
text_color_set(DW_COLOR_ERROR); \
dw_printf ("INTERNAL ERROR %s %d pthread_mutex_trylock returned %d", __FILE__, __LINE__, err); \
exit (1); \
} ; \
! err; \
})
#define dw_mutex_unlock(x) \
{ \
int err; \
err = pthread_mutex_unlock (x); \
if (err != 0) { \
text_color_set(DW_COLOR_ERROR); \
dw_printf ("INTERNAL ERROR %s %d pthread_mutex_unlock returned %d", __FILE__, __LINE__, err); \
exit (1); \
} \
}
#endif
// Formerly used write/read on Linux, for some forgotten reason,
// but always using send/recv makes more sense.
// Need option to prevent a SIGPIPE signal on Linux. (added for 1.5 beta 2)
#if __WIN32__
#define SOCK_SEND(s,data,size) send(s,data,size,0)
#else
#define SOCK_SEND(s,data,size) send(s,data,size, MSG_NOSIGNAL)
#endif
#define SOCK_RECV(s,data,size) recv(s,data,size,0)
/* Platform differences for string functions. */
#if __WIN32__
char *strsep(char **stringp, const char *delim);
char *strtok_r(char *str, const char *delim, char **saveptr);
#endif
// Don't recall why for everyone.
char *strcasestr(const char *S, const char *FIND);
#if defined(__OpenBSD__) || defined(__FreeBSD__) || defined(__APPLE__)
// strlcpy and strlcat should be in string.h and the C library.
#else // Use our own copy
// These prevent /usr/include/gps.h from providing its own definition.
#define HAVE_STRLCAT 1
#define HAVE_STRLCPY 1
#define DEBUG_STRL 1
#if DEBUG_STRL
#define strlcpy(dst,src,siz) strlcpy_debug(dst,src,siz,__FILE__,__func__,__LINE__)
#define strlcat(dst,src,siz) strlcat_debug(dst,src,siz,__FILE__,__func__,__LINE__)
size_t strlcpy_debug(char *__restrict__ dst, const char *__restrict__ src, size_t siz, const char *file, const char *func, int line);
size_t strlcat_debug(char *__restrict__ dst, const char *__restrict__ src, size_t siz, const char *file, const char *func, int line);
#else
#define strlcpy(dst,src,siz) strlcpy_debug(dst,src,siz)
#define strlcat(dst,src,siz) strlcat_debug(dst,src,siz)
size_t strlcpy_debug(char *__restrict__ dst, const char *__restrict__ src, size_t siz);
size_t strlcat_debug(char *__restrict__ dst, const char *__restrict__ src, size_t siz);
#endif /* DEBUG_STRL */
#endif /* BSD or Apple */
#endif /* ifndef DIREWOLF_H */