X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?a=blobdiff_plain;f=innduct.c;fp=innduct.c;h=0000000000000000000000000000000000000000;hb=c153b3acbb7844e8dab5e86ad1cd64d34ce7aa92;hp=6ff7bad88db1aae929265824361daef6eea77df4;hpb=0d0b89542d5657ecb96b02f35b1bfdd53c635cb2;p=innduct.git

diff --git a/innduct.c b/innduct.c
deleted file mode 100644
index 6ff7bad..0000000
--- a/innduct.c
+++ /dev/null
@@ -1,594 +0,0 @@
-/*
- *  innduct
- *  tailing reliable realtime streaming feeder for inn
- *  innduct.c - main program, option parsing and startup
- *
- *  Copyright (C) 2010 Ian Jackson <ijackson@chiark.greenend.org.uk>
- * 
- *  This program is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 3 of the License, or
- *  (at your option) any later version.
- * 
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- * 
- *  You should have received a copy of the GNU General Public License
- *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- *  (I believe that when you compile and link this as part of the inn2
- *  build, with the Makefile runes I have provided, all the libraries
- *  and files which end up included in innduct are licence-compatible
- *  with GPLv3.  If not then please let me know.  -Ian Jackson.)
- */
-
-#include "innduct.h"
-
-const char *sms_names[]= {
-#define SMS_DEF_NAME(s) #s ,
-  SMS_LIST(SMS_DEF_NAME)
-  0
-};
-
-
-/*----- general operational variables -----*/
-
-/* main initialises */
-oop_source *loop;
-ConnList conns;
-char *path_lock, *path_flushing, *path_defer, *path_dump;
-char *globpat_backlog;
-pid_t self_pid;
-int *lowvol_perperiod;
-int lowvol_circptr;
-int lowvol_total; /* does not include current period */
-
-/*---------- configuration option variables ----------*/
-/* when changing defaults, remember to update the manpage */
-
-const char *sitename, *remote_host;
-const char *feedfile, *path_run, *path_cli, *path_cli_dir;
-int quiet_multiple=0;
-int interactive=0, try_filemon=1;
-int try_stream=1;
-int port=119;
-const char *inndconffile;
-
-int max_connections=10;
-int max_queue_per_conn=200;
-int target_max_feedfile_size=100000;
-int period_seconds=30;
-int filepoll_seconds=5;
-int max_queue_per_ipf=-1;
-
-int connection_setup_timeout=200;
-int inndcomm_flush_timeout=100;
-
-double nocheck_thresh= 95.0; /* converted from percentage by main */
-double nocheck_decay= 100; /* conv'd from articles to lambda by main */
-
-/* all these are initialised to seconds, and converted to periods in main */
-int reconnect_delay_periods=1000;
-int flushfail_retry_periods=1000;
-int backlog_retry_minperiods=100;
-int backlog_spontrescan_periods=300;
-int spontaneous_flush_periods=100000;
-int max_separated_periods=2000;
-int need_activity_periods=1000;
-int lowvol_thresh=3;
-int lowvol_periods=1000;
-
-double max_bad_data_ratio= 1; /* conv'd from percentage by main */
-int max_bad_data_initial= 30;
-  /* in one corrupt 4096-byte block the number of newlines has
-   * mean 16 and standard deviation 3.99.  30 corresponds to z=+3.5 */
-
-/*========== main program ==========*/
-
-static void postfork_inputfile(InputFile *ipf) {
-  if (!ipf) return;
-  xclose(ipf->fd, "(in child) input file ", ipf->path);
-}
-
-static void postfork_stdio(FILE *f, const char *what, const char *what2) {
-  /* we have no stdio streams that are buffered long-term */
-  if (!f) return;
-  if (fclose(f)) syscrash("(in child) close %s%s", what, what2?what2:0);
-}
-
-void postfork(void) {
-  in_child= 1;
-
-  xsigsetdefault(SIGTERM);
-  xsigsetdefault(SIGINT);
-  xsigsetdefault(SIGPIPE);
-  if (terminate_sig_flag) raise(terminate_sig_flag);
-
-  postfork_inputfile(main_input_file);
-  postfork_inputfile(flushing_input_file);
-
-  Conn *conn;
-  FOR_CONN(conn)
-    conn_closefd(conn,"(in child) ");
-
-  postfork_stdio(defer, "defer file ", path_defer);
-}
-
-typedef struct Every Every;
-struct Every {
-  struct timeval interval;
-  int fixed_rate;
-  void (*f)(void);
-};
-
-static void every_schedule(Every *e, struct timeval base);
-
-static void *every_happens(oop_source *lp, struct timeval base, void *e_v) {
-  Every *e= e_v;
-  e->f();
-  if (!e->fixed_rate) xgettimeofday(&base);
-  every_schedule(e, base);
-  return OOP_CONTINUE;
-}
-
-static void every_schedule(Every *e, struct timeval base) {
-  struct timeval when;
-  timeradd(&base, &e->interval, &when);
-  loop->on_time(loop, when, every_happens, e);
-}
-
-static void every(int interval, int fixed_rate, void (*f)(void)) {
-  NEW_DECL(Every *,e);
-  e->interval.tv_sec= interval;
-  e->interval.tv_usec= 0;
-  e->fixed_rate= fixed_rate;
-  e->f= f;
-  struct timeval now;
-  xgettimeofday(&now);
-  every_schedule(e, now);
-}
-
-void period(void) {
-  char *dipf_main=     dbg_report_ipf(main_input_file);
-  char *dipf_flushing= dbg_report_ipf(flushing_input_file);
-  char *dipf_backlog=  dbg_report_ipf(backlog_input_file);
-
-  dbg("PERIOD"
-      " sms=%s[%d] conns=%d until_connect=%d"
-      " input_files main:%s flushing:%s backlog:%s[%d]"
-      " children connecting=%ld inndcomm=%ld lowvol_total=%d"
-      ,
-      sms_names[sms], until_flush, conns.count, until_connect,
-      dipf_main, dipf_flushing, dipf_backlog, until_backlog_nextscan,
-      (long)connecting_child, (long)inndcomm_child, lowvol_total
-      );
-
-  free(dipf_main);
-  free(dipf_flushing);
-  free(dipf_backlog);
-
-  if (until_connect) until_connect--;
-
-  inputfile_queue_check_expired(backlog_input_file);
-  poll_backlog_file();
-  if (!backlog_input_file) close_defer(); /* want to start on a new backlog */
-  statemc_period_poll();
-  check_assign_articles();
-  check_idle_conns();
-}
-
-
-/*========== option parsing ==========*/
-
-static void vbadusage(const char *fmt, va_list al) NORET_PRINTF(1,0);
-static void vbadusage(const char *fmt, va_list al) {
-  char *m= xvasprintf(fmt,al);
-  fprintf(stderr, "bad usage: %s\n"
-	  "say --help for help, or read the manpage\n",
-	  m);
-  if (interactive < 2)
-    syslog(LOG_ERR,"innduct: invoked with bad usage: %s",m);
-  exit(8);
-}
-
-/*---------- generic option parser ----------*/
-
-static void badusage(const char *fmt, ...) NORET_PRINTF(1,2);
-static void badusage(const char *fmt, ...) {
-  va_list al;
-  va_start(al,fmt);
-  vbadusage(fmt,al);
-}
-
-enum OptFlags {
-  of_seconds= 001000u,
-  of_boolean= 002000u,
-};
-
-typedef struct Option Option;
-typedef void OptionParser(const Option*, const char *val);
-
-struct Option {
-  int shrt;
-  const char *lng, *formarg;
-  void *store;
-  OptionParser *fn;
-  int intval;
-};
-
-static void parse_options(const Option *options, char ***argvp) {
-  /* on return *argvp is first non-option arg; argc is not updated */
-
-  for (;;) {
-    const char *arg= *++(*argvp);
-    if (!arg) break;
-    if (*arg != '-') break;
-    if (!strcmp(arg,"--")) { arg= *++(*argvp); break; }
-    int a;
-    while ((a= *++arg)) {
-      const Option *o;
-      if (a=='-') {
-	arg++;
-	char *equals= strchr(arg,'=');
-	unsigned len= equals ? (size_t)(equals - arg) : strlen(arg);
-	for (o=options; o->shrt || o->lng; o++)
-	  if (strlen(o->lng) == len && !memcmp(o->lng,arg,len))
-	    goto found_long;
-	badusage("unknown long option --%s",arg);
-      found_long:
-	if (!o->formarg) {
-	  if (equals) badusage("option --%s does not take a value",o->lng);
-	  arg= 0;
-	} else if (equals) {
-	  arg= equals+1;
-	} else {
-	  arg= *++(*argvp);
-	  if (!arg) badusage("option --%s needs a value for %s",
-			     o->lng, o->formarg);
-	}
-	o->fn(o, arg);
-	break; /* eaten the whole argument now */
-      }
-      for (o=options; o->shrt || o->lng; o++)
-	if (a == o->shrt)
-	  goto found_short;
-      badusage("unknown short option -%c",a);
-    found_short:
-      if (!o->formarg) {
-	o->fn(o,0);
-      } else {
-	if (!*++arg) {
-	  arg= *++(*argvp);
-	  if (!arg) badusage("option -%c needs a value for %s",
-			     o->shrt, o->formarg);
-	}
-	o->fn(o,arg);
-	break; /* eaten the whole argument now */
-      }
-    }
-  }
-}
-
-#define DELIMPERHAPS(delim,str)  (str) ? (delim) : "", (str) ? (str) : ""
-
-static void print_options(const Option *options, FILE *f) {
-  const Option *o;
-  for (o=options; o->shrt || o->lng; o++) {
-    char shrt[2] = { o->shrt, 0 };
-    char *optspec= xasprintf("%s%s%s%s%s",
-			     o->shrt ? "-" : "", shrt,
-			     o->shrt && o->lng ? "|" : "",
-			     DELIMPERHAPS("--", o->lng));
-    fprintf(f, "  %s%s%s\n", optspec, DELIMPERHAPS(" ", o->formarg));
-    free(optspec);
-  }
-}
-
-/*---------- specific option types ----------*/
-
-static void op_integer(const Option *o, const char *val) {
-  char *ep;
-  errno= 0;
-  unsigned long ul= strtoul(val,&ep,10);
-  if (*ep || ep==val || errno || ul>INT_MAX)
-    badusage("bad integer value for %s",o->lng);
-  int *store= o->store;
-  *store= ul;
-}
-
-static void op_double(const Option *o, const char *val) {
-  int *store= o->store;
-  char *ep;
-  errno= 0;
-  *store= strtod(val, &ep);
-  if (*ep || ep==val || errno)
-    badusage("bad floating point value for %s",o->lng);
-}
-
-static void op_string(const Option *o, const char *val) {
-  const char **store= o->store;
-  *store= val;
-}
-
-static void op_seconds(const Option *o, const char *val) {
-  int *store= o->store;
-  char *ep;
-  int unit;
-
-  double v= strtod(val,&ep);
-  if (ep==val) badusage("bad time/duration value for %s",o->lng);
-
-  if (!*ep || !strcmp(ep,"s") || !strcmp(ep,"sec")) unit= 1;
-  else if (!strcmp(ep,"m") || !strcmp(ep,"min"))    unit= 60;
-  else if (!strcmp(ep,"h") || !strcmp(ep,"hour"))   unit= 3600;
-  else if (!strcmp(ep,"d") || !strcmp(ep,"day"))    unit= 86400;
-  else if (!strcmp(ep,"das")) unit= 10;
-  else if (!strcmp(ep,"hs"))  unit= 100;
-  else if (!strcmp(ep,"ks"))  unit= 1000;
-  else if (!strcmp(ep,"Ms"))  unit= 1000000;
-  else badusage("bad units %s for time/duration value for %s",ep,o->lng);
-
-  v *= unit;
-  v= ceil(v);
-  if (v > INT_MAX) badusage("time/duration value for %s out of range",o->lng);
-  *store= v;
-}
-
-static void op_setint(const Option *o, const char *val) {
-  int *store= o->store;
-  *store= o->intval;
-}
-
-/*---------- specific options ----------*/
-
-static void help(const Option *o, const char *val);
-
-static const Option innduct_options[]= {
-{'f',"feedfile",         "F",     &feedfile,                 op_string      },
-{'q',"quiet-multiple",   0,       &quiet_multiple,           op_setint, 1   },
-{0,"no-daemon",          0,       &interactive,              op_setint, 1   },
-{0,"interactive",        0,       &interactive,              op_setint, 2   },
-{0,"no-streaming",       0,       &try_stream,               op_setint, 0   },
-{0,"no-filemon",         0,       &try_filemon,              op_setint, 0   },
-{'C',"inndconf",         "F",     &inndconffile,             op_string      },
-{'P',"port",             "PORT",  &port,                     op_integer     },
-{0,"chdir",              "DIR",   &path_run,                 op_string      },
-{0,"cli",            "DIR/|PATH", &path_cli,                 op_string      },
-{0,"help",               0,       0,                         help           },
-
-{0,"max-connections",    "N",     &max_connections,          op_integer     },
-{0,"max-queue-per-conn", "N",     &max_queue_per_conn,       op_integer     },
-{0,"max-queue-per-file", "N",     &max_queue_per_ipf,        op_integer     },
-{0,"feedfile-flush-size","BYTES", &target_max_feedfile_size, op_integer     },
-{0,"period-interval",    "TIME",  &period_seconds,           op_seconds     },
-
-{0,"connection-timeout",   "TIME",  &connection_setup_timeout, op_seconds   },
-{0,"stuck-flush-timeout",  "TIME",  &inndcomm_flush_timeout,   op_seconds   },
-{0,"feedfile-poll",        "TIME",  &filepoll_seconds,         op_seconds   },
-
-{0,"no-check-proportion",   "PERCENT",   &nocheck_thresh,       op_double   },
-{0,"no-check-response-time","ARTICLES",  &nocheck_decay,        op_double   },
-
-{0,"reconnect-interval",     "PERIOD", &reconnect_delay_periods,  op_seconds },
-{0,"flush-retry-interval",   "PERIOD", &flushfail_retry_periods,  op_seconds },
-{0,"earliest-deferred-retry","PERIOD", &backlog_retry_minperiods, op_seconds },
-{0,"backlog-rescan-interval","PERIOD",&backlog_spontrescan_periods,op_seconds},
-{0,"max-flush-interval",     "PERIOD", &spontaneous_flush_periods,op_seconds },
-{0,"flush-finish-timeout",   "PERIOD", &max_separated_periods,    op_seconds },
-{0,"idle-timeout",           "PERIOD", &need_activity_periods,    op_seconds },
-{0,"low-volume-thresh",      "PERIOD", &lowvol_thresh,            op_integer },
-{0,"low-volume-window",      "PERIOD", &lowvol_periods,           op_seconds },
-
-{0,"max-bad-input-data-ratio","PERCENT", &max_bad_data_ratio,   op_double    },
-{0,"max-bad-input-data-init", "PERCENT", &max_bad_data_initial, op_integer   },
-
-{0,0}
-};
-
-static void printusage(FILE *f) {
-  fputs("usage: innduct [options] site [fqdn]\n"
-	"available options are:\n", f);
-  print_options(innduct_options, f);
-}
-
-static void help(const Option *o, const char *val) {
-  printusage(stdout);
-  if (ferror(stdout) || fflush(stdout)) {
-    perror("innduct: writing help");
-    exit(12);
-  }
-  exit(0);
-}
-
-static void convert_to_periods_rndup(int *store) {
-  *store += period_seconds-1;
-  *store /= period_seconds;
-}
-
-static int path_ends_slash(const char *specified) {
-  int l= strlen(specified);
-  assert(l);
-  return specified[l-1] == '/';
-}
-
-static int innduct_fatal_cleanup(void) { return 12; } /* used for libinn die */
-
-int main(int argc, char **argv) {
-  /* set up libinn logging */
-  message_program_name= "innduct";
-  message_fatal_cleanup= innduct_fatal_cleanup;
-
-#define INNLOGSET_CALL(fn, pfx, sysloglevel)	\
-  message_handlers_##fn(1, duct_log_##fn);
-  INNLOGSETS(INNLOGSET_CALL)
-
-  if (!argv[1]) {
-    printusage(stderr);
-    exit(8);
-  }
-
-  parse_options(innduct_options, &argv);
-
-  /* arguments */
-
-  sitename= *argv++;
-  if (!sitename) badusage("need site name argument");
-
-  if (*argv) remote_host= *argv++;
-  else remote_host= sitename;
-  
-  if (*argv) badusage("too many non-option arguments");
-
-  /* defaults */
-
-  int r= innconf_read(inndconffile);
-  if (!r) badusage("could not read inn.conf");
-
-  if (!remote_host) remote_host= sitename;
-
-  if (nocheck_thresh < 0 || nocheck_thresh > 100)
-    badusage("nocheck threshold percentage must be between 0..100");
-  nocheck_thresh *= 0.01;
-
-  if (nocheck_decay < 0.1)
-    badusage("nocheck decay articles must be at least 0.1");
-  nocheck_decay= pow(0.5, 1.0/nocheck_decay);
-
-  convert_to_periods_rndup(&reconnect_delay_periods);
-  convert_to_periods_rndup(&flushfail_retry_periods);
-  convert_to_periods_rndup(&backlog_retry_minperiods);
-  convert_to_periods_rndup(&backlog_spontrescan_periods);
-  convert_to_periods_rndup(&spontaneous_flush_periods);
-  convert_to_periods_rndup(&max_separated_periods);
-  convert_to_periods_rndup(&need_activity_periods);
-  convert_to_periods_rndup(&lowvol_periods);
-
-  if (max_bad_data_ratio < 0 || max_bad_data_ratio > 100)
-    badusage("bad input data ratio must be between 0..100");
-  max_bad_data_ratio *= 0.01;
-
-  if (!path_run)
-    path_run= innconf->pathrun;
-
-  if (!feedfile) feedfile= sitename;
-  if (!feedfile[0]) badusage("feed filename, if specified, must be nonempty");
-  if (path_ends_slash(feedfile))
-    feedfile= xasprintf("%s%s", feedfile, sitename);
-  if (feedfile[0] != '/')
-    feedfile= xasprintf("%s/%s", innconf->pathoutgoing, feedfile);
-
-  if (!path_cli) {
-    path_cli_dir= "innduct";
-  } else if (!path_cli[0] || !strcmp(path_cli,"none")) {
-    path_cli= 0; /* ok, don't then */
-  } else if (path_ends_slash(path_cli)) {
-    path_cli_dir= xasprintf("%.*s", strlen(path_cli)-1, path_cli);
-  }
-  if (path_cli_dir)
-    path_cli= xasprintf("%s/%s", path_cli_dir, sitename);
-
-  if (max_queue_per_ipf<0)
-    max_queue_per_ipf= max_queue_per_conn * 2;
-
-  const char *feedfile_forbidden= "?*[~#";
-  int c;
-  while ((c= *feedfile_forbidden++))
-    if (strchr(feedfile, c))
-      badusage("feed filename may not contain metacharacter %c",c);
-
-  int i;
-  lowvol_perperiod= xcalloc(sizeof(*lowvol_perperiod), lowvol_periods);
-  for (i=0; i<lowvol_periods; i++) {
-    lowvol_perperiod[i]= lowvol_thresh;
-    lowvol_total += lowvol_thresh;
-  }
-  lowvol_total -= lowvol_thresh;
-
-  /* set things up */
-
-  path_lock=        xasprintf("%s_lock",      feedfile);
-  path_flushing=    xasprintf("%s_flushing",  feedfile);
-  path_defer=       xasprintf("%s_defer",     feedfile);
-  path_dump=        xasprintf("%s_dump",      feedfile);
-  globpat_backlog=  xasprintf("%s_backlog*",  feedfile);
-
-  oop_source_sys *sysloop= oop_sys_new();
-  if (!sysloop) syscrash("could not create liboop event loop");
-  loop= (oop_source*)sysloop;
-
-  LIST_INIT(conns);
-
-  if (interactive < 1) {
-    for (i=3; i<255; i++)
-      /* do this now before we open syslog, etc. */
-      close(i);
-  }
-
-  logv_prefix= xasprintf("%s| ", sitename);
-  if (interactive < 2) {
-    openlog("innduct",LOG_NDELAY|LOG_PID,LOG_NEWS);
-    logv_use_syslog= 1;
-  }
-
-  if (interactive < 1) {
-    int null= open("/dev/null",O_RDWR);
-    if (null<0) sysdie("failed to open /dev/null");
-    dup2(null,0);
-    dup2(null,1);
-    dup2(null,2);
-    xclose(null, "/dev/null original fd",0);
-
-    pid_t child1= xfork("daemonise first fork");
-    if (child1) _exit(0);
-
-    pid_t sid= setsid();
-    if (sid == -1) sysdie("setsid failed");
-
-    pid_t child2= xfork("daemonise second fork");
-    if (child2) _exit(0);
-  }
-
-  self_pid= getpid();
-  if (self_pid==-1) syscrash("getpid");
-
-  r= chdir(path_run);
-  if (r) sysdie("could not chdir to pathrun %s", path_run);
-
-  statemc_lock();
-
-  init_signals();
-
-  notice("starting");
-
-  int val= 1;
-  r= SMsetup(SM_PREOPEN, &val); if (!r) warn("SMsetup SM_PREOPEN failed");
-  r= SMinit(); if (!r) die("storage manager initialisation (SMinit) failed");
-
-  if (interactive >= 2)
-    cli_stdio();
-
-  cli_init();
-
-  int filemon_ok= 0;
-  if (!try_filemon) {
-    notice("filemon: suppressed by command line option, polling");
-  } else {
-    filemon_ok= filemon_method_init();
-    if (!filemon_ok)
-      warn("filemon: no file monitoring available, polling");
-  }
-  if (!filemon_ok)
-    every(filepoll_seconds,0,filepoll);
-
-  every(period_seconds,1,period);
-
-  statemc_init();
-
-  /* let's go */
-
-  void *run= oop_sys_run(sysloop);
-  assert(run == OOP_ERROR);
-  syscrash("event loop failed");
-}