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Create an API for adding an optional time unit onto the ends of time periods.

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Two examples of its use are included, and the usage could be expanded in some
cases into certain configuration options where time periods are specified.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@224225 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Tilghman Lesher
2009-10-15 22:33:30 +00:00
parent a39f3a7521
commit c74a2d0b45
3 changed files with 79 additions and 8 deletions
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56
main/app.c
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@@ -2082,3 +2082,59 @@ void ast_safe_fork_cleanup(void)
ast_unreplace_sigchld();
}
int ast_app_parse_timelen(const char *timestr, int *result, ast_timelen unit)
{
int res;
char u[10];
#ifdef HAVE_LONG_DOUBLE_WIDER
long double amount;
#define FMT "%30Lf%9s"
#else
double amount;
#define FMT "%30lf%9s"
#endif
if (!timestr) {
return -1;
}
if ((res = sscanf(timestr, FMT, &amount, u)) == 0) {
#undef FMT
return -1;
} else if (res == 2) {
switch (u[0]) {
case 'h':
case 'H':
unit = TIMELEN_HOURS;
break;
case 's':
case 'S':
unit = TIMELEN_SECONDS;
break;
case 'm':
case 'M':
if (toupper(u[1]) == 'S') {
unit = TIMELEN_MILLISECONDS;
} else if (u[1] == '\0') {
unit = TIMELEN_MINUTES;
}
break;
}
}
switch (unit) {
case TIMELEN_HOURS:
amount *= 60;
/* fall-through */
case TIMELEN_MINUTES:
amount *= 60;
/* fall-through */
case TIMELEN_SECONDS:
amount *= 1000;
/* fall-through */
case TIMELEN_MILLISECONDS:
;
}
*result = amount > INT_MAX ? INT_MAX : (int) amount;
return 0;
}