Re: [dev] [scron] simple cron daemon

From: Ari Malinen <ari.malinen_AT_gmail.com>
Date: Sat, 5 Jul 2014 12:52:05 +0300

Maybe something like this:
--- /home/defer/temp/scron/crond.c 2014-07-05 12:16:11.917457442 +0300
+++ crond.c 2014-07-05 12:47:43.147434577 +0300
_AT_@ -23,6 +23,7 @@
 struct range {
        int low;
        int high;
+ int div;
 };

 struct ctabentry {
_AT_@ -150,12 +151,15 @@ matchentry(struct ctabentry *cte, struct
        size_t i;

        for (i = 0; i < LEN(matchtbl); i++) {
                /* this is the match-any case, '*' */
                if (matchtbl[i].r->low == -1 && matchtbl[i].r->high == -1)
                        continue;
                if (matchtbl[i].r->high == -1) {
                        if (matchtbl[i].r->low == matchtbl[i].tm)
                                continue;
+ else if (matchtbl[i].tm % matchtbl[i].r->div == 0)
+ continue;
                } else {
                        if (matchtbl[i].r->low <= matchtbl[i].tm &&
                            matchtbl[i].r->high >= matchtbl[i].tm)
_AT_@ -171,7 +175,7 @@ matchentry(struct ctabentry *cte, struct
 static int
 parsefield(const char *field, int low, int high, struct range *r)
 {
- int min, max;
+ int min, max, div;
        char *e1, *e2;

        if (strcmp(field, "*") == 0) {
_AT_@ -180,6 +184,7 @@ parsefield(const char *field, int low, i
                return 0;
        }

+ div = -1;
        max = -1;
        min = strtol(field, &e1, 10);

_AT_@ -190,6 +195,15 @@ parsefield(const char *field, int low, i
                if (e2[0] != '\0')
                        return -1;
                break;
+ case '*':
+ e1++;
+ if (e1[0] == '/') {
+ e1++;
+ div = strtol(e1, &e2, 10);
+ if (e2[0] != '\0')
+ return -1;
+ break;
+ }
        case '\0':
                break;
        default:
_AT_@ -204,6 +218,7 @@ parsefield(const char *field, int low, i

        r->low = min;
        r->high = max;
+ r->div = div;
        return 0;
 }

On Sat, Jul 5, 2014 at 12:35 PM, Dimitris Papastamos <sin_AT_2f30.org> wrote:
> On Sat, Jul 05, 2014 at 11:41:00AM +0400, Jack L. Frost wrote:
>> No */n for “every n <unit>”?
>> Pretty much useless without that if you ever need a command to be run every five minutes, for example.
>
> I've forked scron[0] and I plan to implement */n at some point. If
> you get to it first, please send a patch here.
>
> [0] http://git.2f30.org/scron
>

Received on Sat Jul 05 2014 - 11:52:05 CEST

This archive was generated by hypermail 2.3.0 : Sat Jul 05 2014 - 12:00:08 CEST