commit 3d3ff2515bc16f6db71df32efa1cdf903d068be2
parent 1972b52dc1d5ffc7c0f2c4ab369c73ffb4bc58d1
Author: Ari Malinen <ari.malinen@gmail.com>
Date: Tue, 10 Jun 2014 18:57:06 +0300
cleaned code
Diffstat:
3 files changed, 32 insertions(+), 21 deletions(-)
diff --git a/README b/README
@@ -1,3 +1,19 @@
-dcron - simple cron
+dcron - simple cron daemon
-this is early prototype
+This tool is not ready for use!
+
+info:
+Single daemon, single config file. One task per line. Tab is separator.
+
+example:
+# min,hour,mday,mon,wday,command
+* * * * * exec echo minute passed
+30 * * * * exec echo 30 min passed
+
+output:
+dcron 18:53 10.05.2014
+run: exec echo minute passed
+minute passed
+dcron 18:54 10.05.2014
+run: exec echo minute passed
+minute passed
diff --git a/cron.conf b/cron.conf
@@ -1,4 +1,3 @@
# min,hour,mday,mon,wday,command
-39 17 * * * exec nice emerge --sync --quiet
-40 * * * * exec nice mandb --quiet
-41 * * * * exec ionice -n2 updatedb
+* * * * * exec echo minute passed
+30 * * * * exec echo 30 min passed
diff --git a/dcron.c b/dcron.c
@@ -6,22 +6,24 @@
#include <unistd.h>
#define MAXLEN 100
+#define SLEEP 60
-static const char config[] = "cron.conf";
+static const char config[] = "cron.conf";
int main(void) {
FILE *fp;
char line[MAXLEN+1];
- char cmd[MAXLEN+1];
char *col;
- int i, min, hour, mday, mon, wday;
+ int min, hour, mday, mon, wday;
+ char cmd[MAXLEN+1];
+ int i;
time_t rawtime;
struct tm *tmtime;
while (1) {
rawtime = time(NULL);
tmtime = localtime(&rawtime);
-
+
printf("dcron %.2d:%.2d %.2d.%.2d.%.4d\n",
tmtime->tm_hour, tmtime->tm_min,
tmtime->tm_mday, tmtime->tm_mon, tmtime->tm_year+1900);
@@ -29,19 +31,14 @@ int main(void) {
fp = fopen(config, "r");
if (fp == NULL) {
fprintf(stderr, "error: cant read %s\n", config);
- sleep(60);
+ sleep(SLEEP);
continue;
}
while (fgets(line, MAXLEN+1, fp) != NULL) {
- if (line[1] == '\0') {
- // empty line
- } else if (line[0] == '\043') {
- // comment
- } else {
- // split line
- i = 0;
+ if (line[1] != '\0' && line[0] != '\043') {
col = strtok(line,"\t");
+ i = 0;
while (col != NULL) {
switch (i) {
case 0:
@@ -78,18 +75,17 @@ int main(void) {
strncpy(cmd, col, MAXLEN+1);
break;
}
- col = strtok (NULL, "\t");
+ col = strtok(NULL, "\t");
i++;
}
- // run task
if (min == -1 || min == tmtime->tm_min) {
if (hour == -1 || hour == tmtime->tm_hour) {
if (mday == -1 || mday == tmtime->tm_mday) {
if (mon == -1 || mon == tmtime->tm_mon) {
if (wday == -1 || wday == tmtime->tm_wday) {
printf("run: %s", cmd);
- // system(cmd);
+ system(cmd);
}
}
}
@@ -97,7 +93,7 @@ int main(void) {
}
}
}
- sleep(60);
+ sleep(SLEEP);
}
fclose(fp);
return 0;
