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#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include "cputemp2maxfreq.h"
#include "debug.h"
#include "logger.h"
extern struct s_config config;
void printhelp()
{
printf(
"Usage: %s <options>\n"
"\n"
"Options:\n"
"-f <frequency> Fallback frequency in KHz, used when everything fails\n"
" Default: %ld\n"
"-g <governor> cpufreq governor to use, use \"keep\" to keep current governor\n"
" Default: %s\n"
"-h Display this help text\n"
"-i <file> Input for temperature readout, usually somewhere in sysfs\n"
" Default: %s\n"
"-l <logger> Logger to use, valid values: none, kmsg, stdout, syslog\n"
" Default: %s\n"
"-m Log measurements (CPU temperature and frequency)\n"
"-p <time> Poll interval in seconds\n"
" Default: %d\n"
"-s <step> Step size in Khz when increasing/decreasing CPU speed\n"
" Default: %ld\n"
"-t <number> Temperature limit\n"
" Default: %ld\n",
config.name,config.fallback_freq,config.governor,config.temp_input,config.logger_name,
config.interval,config.freq_step,config.max_temp/1000
);
}
void argparse(int argc, char **argv)
{
int opt;
struct s_config userconfig;
char *lastslash;
DEBUG1_ARGPARSE("Started\n");
lastslash=strrchr(argv[0],'/');
if (lastslash==NULL)
{
lastslash=argv[0];
} else {
lastslash++;
}
strncpy(config.name,lastslash,sizeof(config.name));
DEBUG2_ARGPARSE("Detected program name %s\n",config.name);
// Copy defaults
memcpy(&userconfig,&config,sizeof(struct s_config));
// Parse options
while((opt=getopt(argc,argv,"f:g:hi:l:mp:s:t:"))!=-1)
{
DEBUG1_ARGPARSE("Argument: %c Value: %s\n",opt,optarg);
switch(opt)
{
case 'f':
userconfig.fallback_freq=strtoll(optarg,NULL,10);
break;
case 'g':
strncpy(userconfig.governor,optarg,sizeof(userconfig.governor));
break;
case 'h':
printhelp();
exit(1);
case 'i':
strncpy(userconfig.temp_input,optarg,sizeof(userconfig.temp_input));
break;
case 'l':
strncpy(userconfig.logger_name,optarg,sizeof(userconfig.logger_name));
break;
case 'm':
userconfig.log_data=1;
break;
case 'p':
userconfig.interval=strtoll(optarg,NULL,10);
break;
case 's':
userconfig.freq_step=strtoll(optarg,NULL,10);
break;
case 't':
userconfig.max_temp=strtoll(optarg,NULL,10)*1000;
break;
default:
printhelp();
exit(1);
}
}
// Change the logger function pointer
DEBUG1_ARGPARSE("Logger is set to %s\n",userconfig.logger_name);
if (strcmp(userconfig.logger_name,"none")==0) userconfig.logger=&logger_none;
else if (strcmp(userconfig.logger_name,"stdout")==0) userconfig.logger=&logger_stdout;
else if (strcmp(userconfig.logger_name,"syslog")==0) userconfig.logger=&logger_syslog;
else if (strcmp(userconfig.logger_name,"kmsg")==0) userconfig.logger=&logger_kmsg;
else {
config.logger("Invalid value for logger, exiting");
exit(1);
}
DEBUG2_ARGPARSE("Logger pointer is %p\n",userconfig.logger);
// Copy modified config to global config
memcpy(&config,&userconfig,sizeof(struct s_config));
}
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