runit: add runsv, runsvdir and sv. Oh yes.

It even seems to work. +11K. :(

include/applets.h

@@ -246,6 +246,8 @@ USE_RPM(APPLET(rpm, _BB_DIR_BIN, _BB_SUID_NEVER))
 USE_RPM2CPIO(APPLET(rpm2cpio, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
 USE_RUN_PARTS(APPLET_ODDNAME(run-parts, run_parts, _BB_DIR_BIN, _BB_SUID_NEVER, run_parts))
 USE_RUNLEVEL(APPLET(runlevel, _BB_DIR_SBIN, _BB_SUID_NEVER))
+USE_RUNSV(APPLET(runsv, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
+USE_RUNSVDIR(APPLET(runsvdir, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
 USE_RX(APPLET(rx, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
 USE_SED(APPLET(sed, _BB_DIR_BIN, _BB_SUID_NEVER))
 USE_SEQ(APPLET(seq, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
@@ -270,6 +272,7 @@ USE_STTY(APPLET(stty, _BB_DIR_BIN, _BB_SUID_NEVER))
 USE_SU(APPLET(su, _BB_DIR_BIN, _BB_SUID_ALWAYS))
 USE_SULOGIN(APPLET(sulogin, _BB_DIR_SBIN, _BB_SUID_NEVER))
 USE_SUM(APPLET(sum, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
+USE_SV(APPLET(sv, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
 USE_SVLOGD(APPLET(svlogd, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
 USE_SWAPONOFF(APPLET_ODDNAME(swapoff, swap_on_off, _BB_DIR_SBIN, _BB_SUID_NEVER,swapoff))
 USE_SWAPONOFF(APPLET_ODDNAME(swapon, swap_on_off, _BB_DIR_SBIN, _BB_SUID_NEVER, swapon))

include/usage.h

@@ -2571,6 +2571,16 @@ USE_FEATURE_MDEV_CONFIG( \
 	"$ runlevel /var/run/utmp\n" \
 	"N 2"
 
+#define runsv_trivial_usage \
+	"dir"
+#define runsv_full_usage \
+	"Start and monitor a service and optionally an appendant log service."
+
+#define runsvdir_trivial_usage \
+	"[-P] dir"
+#define runsvdir_full_usage \
+	"Start a runsv process for each subdirectory."
+
 #define rx_trivial_usage \
 	"FILE"
 #define rx_full_usage \
@@ -2844,6 +2854,12 @@ USE_FEATURE_START_STOP_DAEMON_FANCY( \
 	"\t-r\tuse BSD sum algorithm (1K blocks)\n" \
 	"\t-s\tuse System V sum algorithm (512byte blocks)"
 
+#define sv_trivial_usage \
+	"[-v] [-w sec] command service..."
+#define sv_full_usage \
+	"Report the current status and control the state of services " \
+	"monitored by the runsv supervisor."
+
 #define svlogd_trivial_usage \
 	"[-ttv] [-r c] [-R abc] [-l len] [-b buflen] dir..."
 #define svlogd_full_usage \

runit/Config.in

@@ -5,6 +5,28 @@
 
 menu "Runit Utilities"
 
+config RUNSV
+	bool "runsv"
+	default n
+	help
+	  runsv starts and monitors a service and optionally an appendant log
+	  service.
+
+config RUNSVDIR
+	bool "runsvdir"
+	default n
+	help
+	  runsvdir starts a runsv process for each subdirectory, or symlink to
+	  a directory, in the services directory dir, up to a limit of 1000
+	  subdirectories, and restarts a runsv process if it terminates.
+
+config SV
+	bool "sv"
+	default n
+	help
+	  sv reports the current status and controls the state of services
+	  monitored by the runsv supervisor.
+
 config SVLOGD
 	bool "svlogd"
 	default n

runit/Kbuild

@@ -5,5 +5,8 @@
 # Licensed under the GPL v2, see the file LICENSE in this tarball.
 
 lib-y:=
-lib-$(CONFIG_CHPST) += chpst.o
+lib-$(CONFIG_RUNSV) += runsv.o runit_lib.o
+lib-$(CONFIG_RUNSVDIR) += runsvdir.o runit_lib.o
+lib-$(CONFIG_SV) += sv.o runit_lib.o
 lib-$(CONFIG_SVLOGD) += svlogd.o runit_lib.o
+lib-$(CONFIG_CHPST) += chpst.o

runit/runit_lib.c

@@ -519,6 +519,7 @@ void taia_uint(struct taia *t,unsigned s)
 
 
 /*** stralloc_cat.c ***/
+#if 0
 
 int stralloc_cat(stralloc *sato,const stralloc *safrom)
 {
@@ -577,6 +578,7 @@ int stralloc_copys(stralloc *sa,const char *s)
 
 GEN_ALLOC_append(stralloc,char,s,len,a,i,n,x,30,stralloc_readyplus,stralloc_append)
 
+#endif /* stralloc */
 
 /*** iopause.c ***/
 
@@ -672,7 +674,7 @@ int open_write(const char *fn)
 
 
 /*** openreadclose.c ***/
-
+#if 0
 int openreadclose(const char *fn,stralloc *sa,unsigned bufsize)
 {
 	int fd;
@@ -684,10 +686,11 @@ int openreadclose(const char *fn,stralloc *sa,unsigned bufsize)
 	if (readclose(fd,sa,bufsize) == -1) return -1;
 	return 1;
 }
+#endif
 
 
 /*** pathexec_env.c ***/
-
+#if 0
 static stralloc plus;
 static stralloc tmp;
 
@@ -748,10 +751,10 @@ void pathexec(char **argv)
 	pathexec_run(*argv,argv,e);
 	free(e);
 }
-
+#endif
 
 /*** pathexec_run.c ***/
-
+#if 0
 static stralloc tmp;
 
 void pathexec_run(const char *file,char *const *argv,char *const *envp)
@@ -792,7 +795,7 @@ void pathexec_run(const char *file,char *const *argv,char *const *envp)
 		path += 1;
 	}
 }
-
+#endif
 
 /*** pmatch.c ***/
 
@@ -853,7 +856,7 @@ int prot_uid(int uid)
 
 
 /*** readclose.c ***/
-
+#if 0
 int readclose_append(int fd,stralloc *sa,unsigned bufsize)
 {
 	int r;
@@ -871,7 +874,7 @@ int readclose(int fd,stralloc *sa,unsigned bufsize)
 	if (!stralloc_copys(sa,"")) { close(fd); return -1; }
 	return readclose_append(fd,sa,bufsize);
 }
-
+#endif
 
 /*** scan_ulong.c ***/
 

runit/runit_lib.h

@@ -233,7 +233,7 @@ int ta_append(ta *x,const type *i) \
 
 
 /*** stralloc.h ***/
-
+#if 0
 GEN_ALLOC_typedef(stralloc,char,s,len,a)
 
 extern int stralloc_ready(stralloc *,unsigned);
@@ -256,7 +256,7 @@ extern int stralloc_catlong0(stralloc *,long,unsigned);
 #define stralloc_catuint0(sa,i,n) (stralloc_catulong0((sa),(i),(n)))
 #define stralloc_catint0(sa,i,n) (stralloc_catlong0((sa),(i),(n)))
 #define stralloc_catint(sa,i) (stralloc_catlong0((sa),(i),0))
-
+#endif
 
 /*** iopause.h ***/
 
@@ -290,9 +290,9 @@ extern int open_write(const char *);
 
 
 /*** openreadclose.h ***/
-
+#if 0
 extern int openreadclose(const char *,stralloc *,unsigned);
-
+#endif
 
 /*** pathexec.h ***/
 
@@ -313,10 +313,10 @@ extern int prot_uid(int);
 
 
 /*** readclose.h ***/
-
+#if 0
 extern int readclose_append(int,stralloc *,unsigned);
 extern int readclose(int,stralloc *,unsigned);
-
+#endif
 
 /*** scan.h ***/