SSB_HighSpeed_Modem/modem/main_helper.c
Kurt Moraw f72c347e30 update
2020-11-01 01:21:52 +01:00

95 lines
2.0 KiB
C

/*
* main_helper
* ===========
* by DJ0ABR
*
* functions useful for every main() program start
*
* */
#include "qo100modem.h"
// check if it is already running
int isRunning(char *prgname)
{
int num = 0;
char s[256];
sprintf(s,"ps -e | grep %s",prgname);
FILE *fp = popen(s,"r");
if(fp)
{
// gets the output of the system command
while (fgets(s, sizeof(s)-1, fp) != NULL)
{
if(strstr(s,prgname) && !strstr(s,"grep"))
{
if(++num == 2)
{
printf("%s is already running, do not start twice !",prgname);
pclose(fp);
return 1;
}
}
}
pclose(fp);
}
return 0;
}
// signal handler
void sighandler(int signum)
{
printf("program stopped by signal\n");
stopModem();
exit_fft();
keeprunning = 0;
close(BC_sock_AppToModem);
}
void install_signal_handler()
{
// signal handler, mainly used if the user presses Ctrl-C
struct sigaction sigact;
sigact.sa_handler = sighandler;
sigemptyset(&sigact.sa_mask);
sigact.sa_flags = 0;
sigaction(SIGINT, &sigact, NULL);
sigaction(SIGTERM, &sigact, NULL);
sigaction(SIGQUIT, &sigact, NULL);
sigaction(SIGABRT, &sigact, NULL); // assert() error
//sigaction(SIGSEGV, &sigact, NULL);
// switch off signal 13 (broken pipe)
// instead handle the return value of the write or send function
signal(SIGPIPE, SIG_IGN);
}
int run_console_program(char *cmd)
{
printf("executing: %s\n",cmd);
int ret = system(cmd);
if(ret){}
return 0;
}
void showbytestring(char *title, uint8_t *data, int anz)
{
printf("%s. Len %d: ",title,anz);
for(int i=0; i<anz; i++)
printf("%02X ",data[i]);
printf("\n");
}
void showbytestring16(char *title, uint16_t *data, int anz)
{
printf("%s. Len %d: ",title,anz);
for(int i=0; i<anz; i++)
printf("%04X ",data[i]);
printf("\n");
}