X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=src%2Fserver%2Fmain.c;h=2e1985d0c8c3f095e75c0a61da6eecc3e0bc50ce;hb=HEAD;hp=5022fd63791e69ec48528274a8ba66d1ef11e5b5;hpb=4b597ccec76234944c19a9fb5d4f5d63e5671807;p=tpg%2Fopendispense2.git diff --git a/src/server/main.c b/src/server/main.c index 5022fd6..2e1985d 100644 --- a/src/server/main.c +++ b/src/server/main.c @@ -9,22 +9,44 @@ */ #include #include +#include #include #include #include "common.h" +#include +#include +#include +#include +#include +#include +#include +#include "../cokebank.h" +#include "../common/config.h" // === IMPORTS === -extern void Init_Cokebank(const char *Argument); // cokebank.c extern void Init_Handlers(void); extern void Load_Itemlist(void); extern void Server_Start(void); +extern bool gbServer_RunInBackground; extern int giServer_Port; -extern char* gsItemListFile; -extern char* gsCoke_SerialPort; +extern const char *gsItemListFile; +extern const char *gsCoke_ModbusAddress; +extern int giCoke_ModbusPort; +extern const char *gsDoor_SerialPort; + +// === PROTOTYPES === +void *Periodic_Thread(void *Unused); // === GLOBALS === int giDebugLevel = 0; -char *gsCokebankPath = "cokebank.db"; +bool gbNoCostMode = 0; +const char *gsCokebankPath = "cokebank.db"; +// - Functions called every 20s (or so) +#define ciMaxPeriodics 10 +struct sPeriodicCall { + void (*Function)(void); +} gaPeriodicCalls[ciMaxPeriodics]; +pthread_t gTimerThread; // === CODE === void sigint_handler() @@ -32,48 +54,113 @@ void sigint_handler() exit(0); } +void PrintUsage(const char *progname) +{ + fprintf(stderr, "Usage: %s\n", progname); + fprintf(stderr, " -f,--configfile\n"); + fprintf(stderr, " Set the config file path (default `dispsrv.conf')\n"); + fprintf(stderr, " -d Set debug level (0 - 2, default 0)\n"); + fprintf(stderr, " --[dont-]daemonise\n"); + fprintf(stderr, " Run (or explicitly don't run) the server disconnected from the terminal\n"); +} + int main(int argc, char *argv[]) { int i; - + const char *config_file = "dispsrv.conf"; + // Parse Arguments for( i = 1; i < argc; i++ ) { char *arg = argv[i]; - if( arg[0] == '-' && arg[1] != '-') + if( arg[0] != '-' ) + { + // No free arguments please + PrintUsage(argv[0]); + return -1; + } + else if( arg[1] != '-' ) { + // Single character arguments + // - TODO: Process in a loop switch(arg[1]) { - case 'p': - giServer_Port = atoi(argv[++i]); + case 'f': + if( i + 1 >= argc ) return -1; + config_file = argv[++i]; break; case 'd': - giDebugLevel = atoi(argv[++i]); + if( i + 1 >= argc ) return -1; + Config_AddValue("debug_level", argv[++i]); + giDebugLevel = atoi(argv[i]); break; default: - // Usage Error? - break; + // Usage Error + fprintf(stderr, "Unknown option '-%c'\n", arg[1]); + PrintUsage(argv[0]); + return -1; } } - else if( arg[0] == '-' && arg[1] == '-' ) { - if( strcmp(arg, "--itemsfile") == 0 ) { - gsItemListFile = argv[++i]; + else + { + // Long arguments + if( strcmp(arg, "--configfile") == 0 ) { + if( i + 1 >= argc ) return -1; + config_file = argv[++i]; } - if( strcmp(arg, "--cokeport") == 0 ) { - gsCoke_SerialPort = argv[++i]; + else if( strcmp(arg, "--daemonise") == 0 ) { + Config_AddValue("daemonise", "true"); + } + else if( strcmp(arg, "--dont-daemonise") == 0 ) { + Config_AddValue("daemonise", "false"); } else { - // Usage error? + // Usage error + fprintf(stderr, "Unknown option '%s'\n", arg); + PrintUsage(argv[0]); + return -1; } } - else { - // Usage Error? + } + + if( Config_ParseFile( config_file ) ) { + fprintf(stderr, "NOTICE: Loading of config file '%s' failed, using defaults\n", config_file); + } + + // Parse config values + { + bool rv = true; + #define REQ_CFG(variable, type, name) rv = Config_GetValue_##type(name, &variable) && rv + #define OPT_CFG(variable, type, name) Config_GetValue_##type(name, &variable) + OPT_CFG(gbServer_RunInBackground, Bool, "daemonise"); + OPT_CFG(giServer_Port, Int, "server_port"); + + REQ_CFG(gsCokebankPath, Str, "cokebank_database"); + REQ_CFG(gsItemListFile, Str, "items_file"); + + OPT_CFG(gsDoor_SerialPort, Str, "door_serial_port"); + REQ_CFG(gsCoke_ModbusAddress, Str, "coke_modbus_address"); + OPT_CFG(giCoke_ModbusPort, Int, "coke_modbus_port"); + + OPT_CFG(gbNoCostMode, Bool, "test_mode"); + OPT_CFG(gbSyslogDisabled, Bool, "disable_syslog"); + + if( !rv ) { + fprintf(stderr, "ERROR: Some required configuration items were missing\n"); + return -1; } } - + + // - Cleanly tear down the server on SIGINT/SIGTERM signal(SIGINT, sigint_handler); + signal(SIGTERM, sigint_handler); + // - ignore SIGPIPE to prevent a crashing client from bringing the server down too + signal(SIGPIPE, SIG_IGN); - Init_Cokebank(gsCokebankPath); + openlog("odispense2", 0, LOG_LOCAL4); + + if( Bank_Initialise(gsCokebankPath) ) + return -1; Init_Handlers(); @@ -81,7 +168,102 @@ int main(int argc, char *argv[]) Server_Start(); + if(gTimerThread) + pthread_kill(gTimerThread, SIGKILL); return 0; } +void *Periodic_Thread(void *Unused __attribute__((unused))) +{ + int i; + + for( ;; ) + { + sleep(10); // Sleep for a while +// printf("Periodic firing\n"); + for( i = 0; i < ciMaxPeriodics; i ++ ) + { + if( gaPeriodicCalls[i].Function ) + gaPeriodicCalls[i].Function(); + } + } + return NULL; +} + +void StartPeriodicThread(void) +{ + pthread_create( &gTimerThread, NULL, Periodic_Thread, NULL ); +} + +void AddPeriodicFunction(void (*Fcn)(void)) +{ + int i; + for( i = 0; i < ciMaxPeriodics; i ++ ) + { + if( gaPeriodicCalls[i].Function ) continue; + gaPeriodicCalls[i].Function = Fcn; + return ; + } + + fprintf(stderr, "Error: No space for %p in periodic list\n", Fcn); +} + +// Serial helper +int InitSerial(const char *File, int BaudRate) +{ + struct termios info; + int baud; + int fd; + + fd = open(File, O_RDWR | O_NOCTTY | O_NONBLOCK); + if( fd == -1 ) return -1; + + switch(BaudRate) + { + case 1200: baud = B1200; break; + case 9600: baud = B9600; break; + case 115200: baud = B115200; break; + default: + fprintf(stderr, "ERROR: Invalid baud rate to InitSerial (%i)\n", BaudRate); + exit(1); + } + + info.c_lflag = 0; // Non-Canoical, No Echo + info.c_cflag = baud | CS8 | CLOCAL | CREAD; // baud, 8N1 + info.c_iflag = IGNCR; // Ignore \r + info.c_oflag = 0; // ??? + cfsetspeed(&info, baud); + info.c_cc[VTIME] = 0; // No time limit + info.c_cc[VMIN] = 1; // Block until 1 char + + tcflush(fd, TCIFLUSH); + tcsetattr(fd, TCSANOW, &info); + + return fd; +} + + +/** + * \brief Create a formatted heap string + */ +char *mkstr(const char *Format, ...) +{ + va_list args; + int len; + char *ret; + + va_start(args, Format); + len = vsnprintf(NULL, 0, Format, args); + va_end(args); + + ret = malloc( len + 1 ); + if(!ret) return NULL; + + va_start(args, Format); + vsprintf(ret, Format, args); + va_end(args); + + return ret; +} +