/* * main_helper * =========== * by DJ0ABR * * functions useful for every main() program * * */ #include "hsmodem.h" #ifdef _LINUX_ // 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"); _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); } #endif // _LINUX_ void closeAllandTerminate() { // terminate all Threads keeprunning = 0; // close audio io_close_audio(); io_close_voice(); // close fft _exit_fft(); // close codec2 and opus close_codec2(); close_voiceproc(); // close liquid-SDR close_dsp(); // close network sockets #ifdef _LINUX_ close(BC_sock_AppToModem); #endif #ifdef _WIN32_ closesocket(BC_sock_AppToModem); #endif #ifdef _LINUX_ close(DATA_sock_AppToModem); #endif #ifdef _WIN32_ closesocket(DATA_sock_AppToModem); #endif exit(0); } void showbitstring(char* title, uint8_t* data, int totallen, int anz) { printf("%s. len %d: ", title, totallen); for (int i = 0; i < anz; i++) printf("%01X ", data[i]); printf("\n"); } void showbytestring(char *title, uint8_t *data, int totallen, int anz) { printf("%s. len %d: ",title, totallen); for(int i=0; i