diff options
Diffstat (limited to 'erts/epmd/src/epmd.c')
| -rw-r--r-- | erts/epmd/src/epmd.c | 63 |
1 files changed, 40 insertions, 23 deletions
diff --git a/erts/epmd/src/epmd.c b/erts/epmd/src/epmd.c index 94bb74c876..44e997e609 100644 --- a/erts/epmd/src/epmd.c +++ b/erts/epmd/src/epmd.c @@ -2,18 +2,19 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1998-2013. All Rights Reserved. + * Copyright Ericsson AB 1998-2016. All Rights Reserved. * - * The contents of this file are subject to the Erlang Public License, - * Version 1.1, (the "License"); you may not use this file except in - * compliance with the License. You should have received a copy of the - * Erlang Public License along with this software. If not, it can be - * retrieved online at http://www.erlang.org/. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at * - * Software distributed under the License is distributed on an "AS IS" - * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See - * the License for the specific language governing rights and limitations - * under the License. + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. * * %CopyrightEnd% */ @@ -28,7 +29,7 @@ #ifdef HAVE_STDLIB_H # include <stdlib.h> #endif - +#include <time.h> /* forward declarations */ static void usage(EpmdVars *); @@ -52,7 +53,7 @@ static int epmd_main(int, char **, int); int epmd_dbg(int level,int port) /* Utility to debug epmd... */ { - char* argv[MAX_DEBUG+2]; + char* argv[MAX_DEBUG+4]; char ibuff[100]; int argc = 0; @@ -175,6 +176,9 @@ int main(int argc, char** argv) g->nodes.reg = g->nodes.unreg = g->nodes.unreg_tail = NULL; g->nodes.unreg_count = 0; g->active_conn = 0; +#ifdef HAVE_SYSTEMD_DAEMON + g->is_systemd = 0; +#endif /* HAVE_SYSTEMD_DAEMON */ for (i = 0; i < MAX_LISTEN_SOCKETS; i++) g->listenfd[i] = -1; @@ -248,8 +252,12 @@ int main(int argc, char** argv) else usage(g); epmd_cleanup_exit(g,0); - } - else +#ifdef HAVE_SYSTEMD_DAEMON + } else if (strcmp(argv[0], "-systemd") == 0) { + g->is_systemd = 1; + argv++; argc--; +#endif /* HAVE_SYSTEMD_DAEMON */ + } else usage(g); } dbg_printf(g,1,"epmd running - daemon = %d",g->is_daemon); @@ -286,7 +294,7 @@ static void run_daemon(EpmdVars *g) /* fork to make sure first child is not a process group leader */ if (( child_pid = fork()) < 0) { -#ifndef NO_SYSLOG +#ifdef HAVE_SYSLOG_H syslog(LOG_ERR,"erlang mapper daemon cant fork %m"); #endif epmd_cleanup_exit(g,1); @@ -312,7 +320,7 @@ static void run_daemon(EpmdVars *g) if ((child_pid = fork()) < 0) { -#ifndef NO_SYSLOG +#ifdef HAVE_SYSLOG_H syslog(LOG_ERR,"erlang mapper daemon cant fork 2'nd time %m"); #endif epmd_cleanup_exit(g,1); @@ -335,10 +343,10 @@ static void run_daemon(EpmdVars *g) for (fd = 0; fd < g->max_conn ; fd++) /* close all files ... */ close(fd); /* Syslog on linux will try to write to whatever if we dont - inform it of that the log is closed. */ + inform it that the log is closed. */ closelog(); - /* These chouldn't be needed but for safety... */ + /* These shouldn't be needed but for safety... */ open("/dev/null", O_RDONLY); /* Order is important! */ open("/dev/null", O_WRONLY); @@ -379,7 +387,7 @@ static void run_daemon(EpmdVars *g) close(1); close(2); - /* These chouldn't be needed but for safety... */ + /* These shouldn't be needed but for safety... */ open("nul", O_RDONLY); open("nul", O_WRONLY); @@ -454,6 +462,11 @@ static void usage(EpmdVars *g) fprintf(stderr, " Forcibly unregisters a name with epmd\n"); fprintf(stderr, " (only allowed if -relaxed_command_check was given when \n"); fprintf(stderr, " epmd was started).\n"); +#ifdef HAVE_SYSTEMD_DAEMON + fprintf(stderr, " -systemd\n"); + fprintf(stderr, " Wait for socket from systemd. The option makes sense\n"); + fprintf(stderr, " when started from .socket unit.\n"); +#endif /* HAVE_SYSTEMD_DAEMON */ epmd_cleanup_exit(g,1); } @@ -483,7 +496,7 @@ static void dbg_gen_printf(int onsyslog,int perr,int from_level, if (g->is_daemon) { -#ifndef NO_SYSLOG +#ifdef HAVE_SYSLOG_H if (onsyslog) { erts_vsnprintf(buf, DEBUG_BUFFER_SIZE, format, args); @@ -577,9 +590,13 @@ void epmd_cleanup_exit(EpmdVars *g, int exitval) for(i=0; g->argv[i] != NULL; ++i) free(g->argv[i]); free(g->argv); - } - - + } +#ifdef HAVE_SYSTEMD_DAEMON + if (g->is_systemd){ + sd_notifyf(0, "STATUS=Exited.\n" + "ERRNO=%i", exitval); + } +#endif /* HAVE_SYSTEMD_DAEMON */ exit(exitval); } |