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util: constify input parameters

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This commit is contained in:
Miroslav Lichvar
2020-04-08 15:16:18 +02:00
parent 4dde7198c8
commit d3f4292968
2 changed files with 71 additions and 61 deletions
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66
util.h
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@@ -41,13 +41,13 @@ extern void UTI_ZeroTimespec(struct timespec *ts);
extern int UTI_IsZeroTimespec(struct timespec *ts);
/* Convert a timeval into a timespec */
extern void UTI_TimevalToTimespec(struct timeval *tv, struct timespec *ts);
extern void UTI_TimevalToTimespec(const struct timeval *tv, struct timespec *ts);
/* Convert a timespec into a timeval */
extern void UTI_TimespecToTimeval(struct timespec *ts, struct timeval *tv);
extern void UTI_TimespecToTimeval(const struct timespec *ts, struct timeval *tv);
/* Convert a timespec into a floating point number of seconds */
extern double UTI_TimespecToDouble(struct timespec *ts);
extern double UTI_TimespecToDouble(const struct timespec *ts);
/* Convert a number of seconds expressed in floating point into a
timespec */
@@ -58,7 +58,7 @@ extern void UTI_DoubleToTimespec(double d, struct timespec *ts);
extern void UTI_NormaliseTimespec(struct timespec *ts);
/* Convert a timeval into a floating point number of seconds */
extern double UTI_TimevalToDouble(struct timeval *tv);
extern double UTI_TimevalToDouble(const struct timeval *tv);
/* Convert a number of seconds expressed in floating point into a
timeval */
@@ -70,54 +70,60 @@ extern void UTI_NormaliseTimeval(struct timeval *x);
/* Returns -1 if a comes earlier than b, 0 if a is the same time as b,
and +1 if a comes after b */
extern int UTI_CompareTimespecs(struct timespec *a, struct timespec *b);
extern int UTI_CompareTimespecs(const struct timespec *a, const struct timespec *b);
/* Calculate result = a - b */
extern void UTI_DiffTimespecs(struct timespec *result, struct timespec *a, struct timespec *b);
extern void UTI_DiffTimespecs(struct timespec *result,
const struct timespec *a, const struct timespec *b);
/* Calculate result = a - b and return as a double */
extern double UTI_DiffTimespecsToDouble(struct timespec *a, struct timespec *b);
extern double UTI_DiffTimespecsToDouble(const struct timespec *a, const struct timespec *b);
/* Add a double increment to a timespec to get a new one. 'start' is
the starting time, 'end' is the result that we return. This is
safe to use if start and end are the same */
extern void UTI_AddDoubleToTimespec(struct timespec *start, double increment, struct timespec *end);
extern void UTI_AddDoubleToTimespec(const struct timespec *start, double increment,
struct timespec *end);
/* Calculate the average and difference (as a double) of two timespecs */
extern void UTI_AverageDiffTimespecs(struct timespec *earlier, struct timespec *later, struct timespec *average, double *diff);
extern void UTI_AverageDiffTimespecs(const struct timespec *earlier, const struct timespec *later,
struct timespec *average, double *diff);
/* Calculate result = a - b + c */
extern void UTI_AddDiffToTimespec(struct timespec *a, struct timespec *b, struct timespec *c, struct timespec *result);
extern void UTI_AddDiffToTimespec(const struct timespec *a, const struct timespec *b,
const struct timespec *c, struct timespec *result);
/* Convert a timespec into a temporary string, largely for diagnostic
display */
extern char *UTI_TimespecToString(struct timespec *ts);
extern char *UTI_TimespecToString(const struct timespec *ts);
/* Convert an NTP timestamp into a temporary string, largely for
diagnostic display */
extern char *UTI_Ntp64ToString(NTP_int64 *ts);
extern char *UTI_Ntp64ToString(const NTP_int64 *ts);
/* Convert ref_id into a temporary string, for diagnostics */
extern char *UTI_RefidToString(uint32_t ref_id);
/* Convert an IP address to string, for diagnostics */
extern char *UTI_IPToString(IPAddr *ip);
extern char *UTI_IPToString(const IPAddr *ip);
extern int UTI_StringToIP(const char *addr, IPAddr *ip);
extern int UTI_StringToIdIP(const char *addr, IPAddr *ip);
extern int UTI_IsIPReal(IPAddr *ip);
extern uint32_t UTI_IPToRefid(IPAddr *ip);
extern uint32_t UTI_IPToHash(IPAddr *ip);
extern void UTI_IPHostToNetwork(IPAddr *src, IPAddr *dest);
extern void UTI_IPNetworkToHost(IPAddr *src, IPAddr *dest);
extern int UTI_CompareIPs(IPAddr *a, IPAddr *b, IPAddr *mask);
extern int UTI_IsIPReal(const IPAddr *ip);
extern uint32_t UTI_IPToRefid(const IPAddr *ip);
extern uint32_t UTI_IPToHash(const IPAddr *ip);
extern void UTI_IPHostToNetwork(const IPAddr *src, IPAddr *dest);
extern void UTI_IPNetworkToHost(const IPAddr *src, IPAddr *dest);
extern int UTI_CompareIPs(const IPAddr *a, const IPAddr *b, const IPAddr *mask);
extern char *UTI_IPSockAddrToString(IPSockAddr *sa);
extern char *UTI_IPSockAddrToString(const IPSockAddr *sa);
extern char *UTI_TimeToLogForm(time_t t);
/* Adjust time following a frequency/offset change */
extern void UTI_AdjustTimespec(struct timespec *old_ts, struct timespec *when, struct timespec *new_ts, double *delta_time, double dfreq, double doffset);
extern void UTI_AdjustTimespec(const struct timespec *old_ts, const struct timespec *when,
struct timespec *new_ts, double *delta_time,
double dfreq, double doffset);
/* Get zero NTP timestamp with random bits below precision */
extern void UTI_GetNtp64Fuzz(NTP_int64 *ts, int precision);
@@ -129,30 +135,32 @@ extern NTP_int32 UTI_DoubleToNtp32(double x);
extern void UTI_ZeroNtp64(NTP_int64 *ts);
/* Check if an NTP timestamp is zero */
extern int UTI_IsZeroNtp64(NTP_int64 *ts);
extern int UTI_IsZeroNtp64(const NTP_int64 *ts);
/* Compare two NTP timestamps. Returns -1 if a is before b, 0 if a is equal to
b, and 1 if a is after b. */
extern int UTI_CompareNtp64(NTP_int64 *a, NTP_int64 *b);
extern int UTI_CompareNtp64(const NTP_int64 *a, const NTP_int64 *b);
/* Compare an NTP timestamp with up to three other timestamps. Returns 0
if a is not equal to any of b1, b2, and b3, 1 otherwise. */
extern int UTI_IsEqualAnyNtp64(NTP_int64 *a, NTP_int64 *b1, NTP_int64 *b2, NTP_int64 *b3);
extern int UTI_IsEqualAnyNtp64(const NTP_int64 *a, const NTP_int64 *b1,
const NTP_int64 *b2, const NTP_int64 *b3);
/* Convert a timespec into an NTP timestamp */
extern void UTI_TimespecToNtp64(struct timespec *src, NTP_int64 *dest, NTP_int64 *fuzz);
extern void UTI_TimespecToNtp64(const struct timespec *src, NTP_int64 *dest,
const NTP_int64 *fuzz);
/* Convert an NTP timestamp into a timespec */
extern void UTI_Ntp64ToTimespec(NTP_int64 *src, struct timespec *dest);
extern void UTI_Ntp64ToTimespec(const NTP_int64 *src, struct timespec *dest);
/* Check if time + offset is sane */
extern int UTI_IsTimeOffsetSane(struct timespec *ts, double offset);
extern int UTI_IsTimeOffsetSane(const struct timespec *ts, double offset);
/* Get 2 raised to power of a signed integer */
extern double UTI_Log2ToDouble(int l);
extern void UTI_TimespecNetworkToHost(Timespec *src, struct timespec *dest);
extern void UTI_TimespecHostToNetwork(struct timespec *src, Timespec *dest);
extern void UTI_TimespecNetworkToHost(const Timespec *src, struct timespec *dest);
extern void UTI_TimespecHostToNetwork(const struct timespec *src, Timespec *dest);
extern double UTI_FloatNetworkToHost(Float x);
extern Float UTI_FloatHostToNetwork(double x);