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Add daemonizing code

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This commit is contained in:
Ron Pedde 2003-12-29 22:09:15 +00:00
parent eadacb07b6
commit 54a22bfee4
1 changed files with 106 additions and 32 deletions
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138
src/main.c
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@ -46,12 +46,19 @@
#include "webserver.h" #include "webserver.h"
#include "playlist.h" #include "playlist.h"
#define DEFAULT_CONFIGFILE "/etc/mt-daapd.conf"
/* /*
* Globals * Globals
*/ */
CONFIG config; CONFIG config;
/*
* Forwards
*/
RETSIGTYPE sig_child(int signal);
int daemon_start(int reap_children);
/* /*
* daap_auth * daap_auth
* *
@ -271,10 +278,81 @@ void daap_handler(WS_CONNINFO *pwsc) {
return; return;
} }
/* /*
* config_handler * sig_child
* *
* Handle config web pages * reap children
*/
RETSIGTYPE sig_child(int signal)
{
int status;
while (wait(&status)) {
};
}
/*
* daemon_start
*
* This is pretty much stolen straight from Stevens
*/
int daemon_start(int reap_children)
{
int childpid, fd;
signal(SIGTTOU, SIG_IGN);
signal(SIGTTIN, SIG_IGN);
signal(SIGTSTP, SIG_IGN);
// Fork and exit
if ((childpid = fork()) < 0) {
fprintf(stderr, "Can't fork!\n");
return -1;
} else if (childpid > 0)
exit(0);
#ifdef SETPGRP_VOID
setpgrp();
#else
setpgrp(0,0);
#endif
#ifdef TIOCNOTTY
if ((fd = open("/dev/tty", O_RDWR)) >= 0) {
ioctl(fd, TIOCNOTTY, (char *) NULL);
close(fd);
}
#endif
if((fd = open("/dev/null", O_RDWR, 0)) != -1) {
dup2(fd, STDIN_FILENO);
dup2(fd, STDOUT_FILENO);
dup2(fd, STDERR_FILENO);
if (fd > 2)
close(fd);
}
/*
for (fd = 0; fd < FOPEN_MAX; fd++)
close(fd);
*/
errno = 0;
chdir("/");
umask(0);
if (reap_children) {
signal(SIGCLD, sig_child);
}
return 0;
}
/*
* usage
*
* print usage message
*/ */
void usage(char *program) { void usage(char *program) {
@ -286,30 +364,31 @@ void usage(char *program) {
printf(" -m Use mDNS\n"); printf(" -m Use mDNS\n");
printf(" -c <file> Use configfile specified"); printf(" -c <file> Use configfile specified");
printf(" -p Parse playlist file\n"); printf(" -p Parse playlist file\n");
printf(" -f Run in foreground\n");
printf("\n\n"); printf("\n\n");
} }
int main(int argc, char *argv[]) { int main(int argc, char *argv[]) {
int option; int option;
char *configfile=NULL; char *configfile=DEFAULT_CONFIGFILE;
WSCONFIG ws_config; WSCONFIG ws_config;
WSHANDLE server; WSHANDLE server;
ENUMHANDLE handle; ENUMHANDLE handle;
MP3FILE *pmp3; MP3FILE *pmp3;
int status; int status;
int parseonly=0; int parseonly=0;
int foreground=0;
config.use_mdns=0; config.use_mdns=0;
#ifdef DEBUG #ifdef DEBUG
char *optval="d:c:mp"; char *optval="d:c:mpf";
#else #else
char *optval="c:mp"; char *optval="c:mpf";
#endif /* DEBUG */ #endif /* DEBUG */
printf("mt-daapd: version $Revision$\n"); fprintf(stderr,"mt-daapd: version $Revision$\n");
printf("Copyright (c) 2003 Ron Pedde. All rights reserved\n"); fprintf(stderr,"Copyright (c) 2003 Ron Pedde. All rights reserved\n");
printf("Portions Copyright (c) 1999-2001 Apple Computer, Inc. All rights Reserved.\n\n"); fprintf(stderr,"Portions Copyright (c) 1999-2001 Apple Computer, Inc. All rights Reserved.\n\n");
while((option=getopt(argc,argv,optval)) != -1) { while((option=getopt(argc,argv,optval)) != -1) {
switch(option) { switch(option) {
@ -318,6 +397,10 @@ int main(int argc, char *argv[]) {
err_debuglevel=atoi(optarg); err_debuglevel=atoi(optarg);
break; break;
#endif #endif
case 'f':
foreground=1;
break;
case 'c': case 'c':
configfile=optarg; configfile=optarg;
break; break;
@ -340,17 +423,9 @@ int main(int argc, char *argv[]) {
/* read the configfile, if specified, otherwise /* read the configfile, if specified, otherwise
* try defaults */ * try defaults */
if(!configfile) { if(config_read(configfile)) {
if(config_read("/etc/mt-daapd.conf")) perror("config_read");
if(config_read("./mt-daapd.conf")) { exit(EXIT_FAILURE);
perror("configfile_read");
exit(EXIT_FAILURE);
}
} else {
if(config_read(configfile)) {
perror("config_read");
exit(EXIT_FAILURE);
}
} }
if((config.use_mdns) && (!parseonly)) { if((config.use_mdns) && (!parseonly)) {
@ -371,23 +446,22 @@ int main(int argc, char *argv[]) {
if(parseonly) { if(parseonly) {
if(!pl_error) { if(!pl_error) {
printf("Parsed successfully.\n"); fprintf(stderr,"Parsed successfully.\n");
pl_dump(); pl_dump();
} }
exit(EXIT_SUCCESS); exit(EXIT_SUCCESS);
} }
printf("Scanning MP3s\n"); /* will want to detach before we start scanning mp3 files */
if(!foreground) {
if(scan_init(config.mp3dir)) { log_setdest("mt-daapd",LOGDEST_SYSLOG);
perror("scan_init"); daemon_start(1);
exit(EXIT_FAILURE);
} }
printf("Done... starting server\n"); if(scan_init(config.mp3dir)) {
log_err(1,"Error scanning MP3 files: %s\n",strerror(errno));
// db_add_playlist(27,"foo"); exit(EXIT_FAILURE);
// db_add_playlist_song(27,941027); }
/* start up the web server */ /* start up the web server */
ws_config.web_root=config.web_root; ws_config.web_root=config.web_root;
@ -395,7 +469,7 @@ int main(int argc, char *argv[]) {
server=ws_start(&ws_config); server=ws_start(&ws_config);
if(!server) { if(!server) {
perror("ws_start"); log_err(1,"Error starting web server: %s\n",strerror(errno));
return EXIT_FAILURE; return EXIT_FAILURE;
} }