From c9c16cadfe5eac3b92deb0232839715f2778ab72 Mon Sep 17 00:00:00 2001
From: obarun <eric@obarun.org>
Date: Sat, 28 Jan 2023 10:53:16 +1100
Subject: [PATCH] thanks for your service
---
src/lib66/exec/deps-lib/deps | 1 -
src/lib66/exec/ssexec_all.c | 1006 ----------------------------------
2 files changed, 1007 deletions(-)
delete mode 100644 src/lib66/exec/ssexec_all.c
diff --git a/src/lib66/exec/deps-lib/deps b/src/lib66/exec/deps-lib/deps
index 831144d8..5570d296 100644
--- a/src/lib66/exec/deps-lib/deps
+++ b/src/lib66/exec/deps-lib/deps
@@ -1,4 +1,3 @@
-ssexec_all.o
ssexec_boot.o
ssexec_copy.o
ssexec_disable.o
diff --git a/src/lib66/exec/ssexec_all.c b/src/lib66/exec/ssexec_all.c
deleted file mode 100644
index 65103441..00000000
--- a/src/lib66/exec/ssexec_all.c
+++ /dev/null
@@ -1,1006 +0,0 @@
-/*
- * ssexec_all.c
- *
- * Copyright (c) 2018-2021 Eric Vidal <eric@obarun.org>
- *
- * All rights reserved.
- *
- * This file is part of Obarun. It is subject to the license terms in
- * the LICENSE file found in the top-level directory of this
- * distribution.
- * This file may not be copied, modified, propagated, or distributed
- * except according to the terms contained in the LICENSE file./
- */
-
-#include <sys/stat.h>//S_IFREG,umask
-#include <sys/types.h>//pid_t
-#include <fcntl.h>//O_RDWR
-#include <unistd.h>//dup2,setsid,chdir,fork
-#include <sys/ioctl.h>
-#include <stdint.h>//uint8_t
-#include <stdlib.h>//realpath
-#include <string.h>//strdup
-
-#include <oblibs/string.h>
-#include <oblibs/types.h>
-#include <oblibs/log.h>
-#include <oblibs/sastr.h>
-#include <oblibs/obgetopt.h>
-#include <oblibs/files.h>
-#include <oblibs/graph.h>
-#include <oblibs/directory.h>
-
-#include <skalibs/types.h>
-#include <skalibs/stralloc.h>
-#include <skalibs/djbunix.h>
-#include <skalibs/posixplz.h>
-#include <skalibs/tai.h>
-#include <skalibs/selfpipe.h>
-#include <skalibs/sig.h>
-#include <skalibs/iopause.h>
-
-#include <66/ssexec.h>
-#include <66/constants.h>
-#include <66/tree.h>
-#include <66/svc.h>//scandir_ok
-#include <66/utils.h>
-#include <66/graph.h>
-
-#include <s6/ftrigr.h>
-#include <s6/ftrigw.h>
-
-#define FLAGS_STARTING 1 // 1 starting not really up
-#define FLAGS_STOPPING (1 << 1) // 2 stopping not really down
-#define FLAGS_UP (1 << 2) // 4 really up
-#define FLAGS_DOWN (1 << 3) // 8 really down
-#define FLAGS_BLOCK (1 << 4) // 16 all deps are not up/down
-#define FLAGS_UNBLOCK (1 << 5) // 32 all deps up/down
-#define FLAGS_FATAL (1 << 6) // 64 process crashed
-
-static unsigned int napid = 0 ;
-static unsigned int npid = 0 ;
-
-static resolve_tree_t_ref pares = 0 ;
-static unsigned int *pareslen = 0 ;
-static uint8_t reloadmsg = 0 ;
-
-typedef struct pidtree_s pidtree_t, *pidtree_t_ref ;
-struct pidtree_s
-{
- int pipe[2] ;
- pid_t pid ;
- int aresid ; // id at array ares
- unsigned int vertex ; // id at graph_hash_t struct
- uint8_t state ;
- int nedge ;
- unsigned int edge[SS_MAX_SERVICE + 1] ; // array of id at graph_hash_t struct
- int nnotif ;
- /** id at graph_hash_t struct of depends/requiredby service
- * to notify when a tree is started/stopped */
- unsigned int notif[SS_MAX_SERVICE + 1] ;
-} ;
-#define PIDTREE_ZERO { { -1, -1 }, -1, -1, 0, 0, 0, { 0 } }
-
-typedef enum fifo_e fifo_t, *fifo_t_ref ;
-enum fifo_e
-{
- FIFO_u = 0,
- FIFO_U,
- FIFO_d,
- FIFO_D,
- FIFO_F,
- FIFO_b,
- FIFO_B
-} ;
-
-typedef enum tree_action_e tree_action_t, *tree_action_t_ref ;
-enum tree_action_e
-{
- TREE_ACTION_GOTIT = 0,
- TREE_ACTION_WAIT,
- TREE_ACTION_FATAL,
- TREE_ACTION_UNKNOWN
-} ;
-
-static const unsigned char actions[2][7] = {
- // u U d D F b B
- { TREE_ACTION_WAIT, TREE_ACTION_GOTIT, TREE_ACTION_UNKNOWN, TREE_ACTION_UNKNOWN, TREE_ACTION_FATAL, TREE_ACTION_WAIT, TREE_ACTION_WAIT }, // !what -> up
- { TREE_ACTION_UNKNOWN, TREE_ACTION_UNKNOWN, TREE_ACTION_WAIT, TREE_ACTION_GOTIT, TREE_ACTION_FATAL, TREE_ACTION_WAIT, TREE_ACTION_WAIT } // what -> down
-
-} ;
-
-// convert signal into enum number
-static const unsigned int char2enum[128] =
-{
- 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , //8
- 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , //16
- 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , //24
- 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , //32
- 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , //40
- 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , //48
- 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , //56
- 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , //64
- 0 , 0 , FIFO_B , 0 , FIFO_D , 0 , FIFO_F , 0 , //72
- 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , //80
- 0 , 0 , 0 , 0 , 0 , FIFO_U, 0 , 0 , //88
- 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , //96
- 0 , 0 , FIFO_b , 0 , FIFO_d , 0 , 0 , 0 , //104
- 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , //112
- 0 , 0 , 0 , 0 , 0 , FIFO_u , 0 , 0 , //120
- 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 //128
-} ;
-
-static inline unsigned int lookup (char const *const *table, char const *signal)
-{
- log_flow() ;
-
- unsigned int i = 0 ;
- for (; table[i] ; i++) if (!strcmp(signal, table[i])) break ;
- return i ;
-}
-
-static inline unsigned int parse_signal (char const *signal)
-{
- log_flow() ;
-
- static char const *const signal_table[] = {
- "up",
- "down",
- "unsupervise",
- 0
- } ;
- unsigned int i = lookup(signal_table, signal) ;
- if (!signal_table[i]) log_usage(usage_all) ;
- return i ;
-}
-
-static void all_redir_fd(void)
-{
- log_flow() ;
-
- int fd ;
- while((fd = open("/dev/tty",O_RDWR|O_NOCTTY)) >= 0) {
-
- if (fd >= 3)
- break ;
- }
-
- dup2 (fd,0) ;
- dup2 (fd,1) ;
- dup2 (fd,2) ;
- fd_close(fd) ;
-
- if (setsid() < 0)
- log_dieusys(LOG_EXIT_SYS,"setsid") ;
-
- if ((chdir("/")) < 0)
- log_dieusys(LOG_EXIT_SYS,"chdir") ;
-
- ioctl(0,TIOCSCTTY,1) ;
-
- umask(022) ;
-}
-
-void tree_resolve_array_free(resolve_tree_t *ares, unsigned int areslen)
-{
-
- unsigned int pos = 0 ;
- for (; pos < areslen ; pos++)
- stralloc_free(&ares[pos].sa) ;
-}
-
-static inline void kill_all(pidtree_t *apidt)
-{
- log_flow() ;
-
- unsigned int j = napid ;
- while (j--) kill(apidt[j].pid, SIGKILL) ;
-}
-
-static pidtree_t pidtree_init(unsigned int len)
-{
- log_flow() ;
-
- pidtree_t pids = PIDTREE_ZERO ;
-
- if (len > SS_MAX_SERVICE)
- log_die(LOG_EXIT_SYS, "too many trees") ;
-
- graph_array_init_single(pids.edge, len) ;
-
- return pids ;
-}
-
-
-static int pidtree_get_id(pidtree_t *apidt, unsigned int id)
-{
- log_flow() ;
-
- unsigned int pos = 0 ;
-
- for (; pos < napid ; pos++) {
- if (apidt[pos].vertex == id)
- return (unsigned int) pos ;
- }
- return -1 ;
-}
-
-
-static void notify(pidtree_t *apidt, unsigned int pos, char const *sig, unsigned int what)
-{
- log_flow() ;
-
- unsigned int i = 0, idx = 0 ;
- char fmt[UINT_FMT] ;
- uint8_t flag = what ? FLAGS_DOWN : FLAGS_UP ;
-
- for (; i < apidt[pos].nnotif ; i++) {
-
- for (idx = 0 ; idx < napid ; idx++) {
-
- if (apidt[pos].notif[i] == apidt[idx].vertex && !FLAGS_ISSET(apidt[idx].state, flag)) {
-
- size_t nlen = uint_fmt(fmt, apidt[pos].aresid) ;
- fmt[nlen] = 0 ;
- size_t len = nlen + 1 + 2 ;
- char s[len + 1] ;
- auto_strings(s, fmt, ":", sig, "@") ;
-
- log_trace("sends notification ", sig, " to: ", pares[apidt[idx].aresid].sa.s + pares[apidt[idx].aresid].name, " from: ", pares[apidt[pos].aresid].sa.s + pares[apidt[pos].aresid].name) ;
-
- if (write(apidt[idx].pipe[1], s, strlen(s)) < 0)
- log_dieusys(LOG_EXIT_SYS, "send notif to: ", pares[apidt[idx].aresid].sa.s + pares[apidt[idx].aresid].name) ;
- }
- }
- }
-}
-
-/**
- * @what: up or down
- * @success: 0 fail, 1 win
- * */
-static void announce(unsigned int pos, pidtree_t *apidt, char const *base, unsigned int what, unsigned int success, unsigned int exitcode)
-{
- log_flow() ;
-
- char fmt[UINT_FMT] ;
- char const *treename = pares[apidt[pos].aresid].sa.s + pares[apidt[pos].aresid].name ;
-
- resolve_tree_t tres = RESOLVE_TREE_ZERO ;
- resolve_wrapper_t_ref wres = resolve_set_struct(DATA_TREE, &tres) ;
-
- uint8_t flag = what ? FLAGS_DOWN : FLAGS_UP ;
-
- if (!resolve_modify_field_g(wres, base, treename, E_RESOLVE_TREE_INIT, what ? (success ? "1" : "0") : (success ? "0" : "1")))
- log_dieusys(LOG_EXIT_SYS, "modify resolve file of: ", treename) ;
-
- if (success) {
-
- notify(apidt, pos, "F", what) ;
-
- fmt[uint_fmt(fmt, exitcode)] = 0 ;
-
- log_1_warnu(reloadmsg == 0 ? "start" : reloadmsg > 1 ? "unsupervise" : what == 0 ? "start" : "stop", " tree: ", treename, " -- exited with signal: ", fmt) ;
-
- FLAGS_SET(apidt[pos].state, FLAGS_BLOCK|FLAGS_FATAL) ;
-
- } else {
-
- notify(apidt, pos, what ? "D" : "U", what) ;
-
- FLAGS_CLEAR(apidt[pos].state, FLAGS_BLOCK) ;
- FLAGS_SET(apidt[pos].state, flag|FLAGS_UNBLOCK) ;
-
- log_info("Successfully ", reloadmsg == 0 ? "started" : reloadmsg > 1 ? "unsupervised" : what == 0 ? "started" : "stopped", " tree: ", treename) ;
- }
-
- resolve_free(wres) ;
-
-}
-
-static void pidtree_init_array(unsigned int *list, unsigned int listlen, pidtree_t *apidt, graph_t *g, resolve_tree_t *ares, unsigned int areslen, ssexec_t *info, uint8_t requiredby)
-{
- log_flow() ;
-
- int r = 0 ;
- unsigned int pos = 0 ;
-
- for (; pos < listlen ; pos++) {
-
- pidtree_t pids = pidtree_init(g->mlen) ;
-
- char *name = g->data.s + genalloc_s(graph_hash_t,&g->hash)[list[pos]].vertex ;
-
- pids.aresid = tree_resolve_array_search(ares, areslen, name) ;
-
- if (pids.aresid < 0)
- log_dieu(LOG_EXIT_SYS,"find ares id of: ", name, " -- please make a bug reports") ;
-
- pids.nedge = graph_matrix_get_edge_g_sorted_list(pids.edge, g, name, requiredby, 1) ;
-
- if (pids.nedge < 0)
- log_dieu(LOG_EXIT_SYS,"get sorted ", requiredby ? "required by" : "dependency", " list of tree: ", name) ;
-
- pids.nnotif = graph_matrix_get_edge_g_sorted_list(pids.notif, g, name, !requiredby, 1) ;
-
- if (pids.nnotif < 0)
- log_dieu(LOG_EXIT_SYS,"get sorted ", !requiredby ? "required by" : "dependency", " list of tree: ", name) ;
-
- pids.vertex = graph_hash_vertex_get_id(g, name) ;
-
- if (pids.vertex < 0)
- log_dieu(LOG_EXIT_SYS, "get vertex id -- please make a bug report") ;
-
- r = tree_isinitialized(info->base.s, name) ;
-
- if (r < 0)
- log_dieu(LOG_EXIT_SYS, "read resolve file of tree: ", name) ;
-
- if (r)
- FLAGS_SET(pids.state, FLAGS_UP) ;
- else
- FLAGS_SET(pids.state, FLAGS_DOWN) ;
-
- apidt[pos] = pids ;
- }
-}
-
-static int handle_signal(pidtree_t *apidt, unsigned int what, graph_t *graph, ssexec_t *info)
-{
- log_flow() ;
-
- int ok = 0 ;
-
- for (;;) {
-
- int s = selfpipe_read() ;
- switch (s) {
-
- case -1 : log_dieusys(LOG_EXIT_SYS,"selfpipe_read") ;
- case 0 : return ok ;
- case SIGCHLD :
-
- for (;;) {
-
- unsigned int pos = 0 ;
- int wstat ;
- pid_t r = wait_nohang(&wstat) ;
-
- if (r < 0) {
-
- if (errno = ECHILD)
- break ;
- else
- log_dieusys(LOG_EXIT_SYS,"wait for children") ;
-
- } else if (!r) break ;
-
- for (; pos < napid ; pos++)
- if (apidt[pos].pid == r)
- break ;
-
- if (pos < napid) {
-
- if (!WIFSIGNALED(wstat) && !WEXITSTATUS(wstat)) {
-
- announce(pos, apidt, info->base.s, what, 0, 0) ;
-
- } else {
-
- ok = WIFSIGNALED(wstat) ? WTERMSIG(wstat) : WEXITSTATUS(wstat) ;
- announce(pos, apidt, info->base.s, what, 1, ok) ;
-
- kill_all(apidt) ;
- break ;
- }
-
- npid-- ;
- }
- }
- break ;
- case SIGTERM :
- case SIGKILL :
- case SIGINT :
- log_1_warn("received SIGINT, aborting transaction") ;
- kill_all(apidt) ;
- ok = 111 ;
- break ;
- default : log_die(LOG_EXIT_SYS, "unexpected data in selfpipe") ;
- }
- }
-
- return ok ;
-}
-
-/** this following function come from:
- * https://git.skarnet.org/cgi-bin/cgit.cgi/s6-rc/tree/src/s6-rc/s6-rc.c#n111
- * under license ISC where parameters was modified */
-static uint32_t compute_timeout (uint32_t timeout, tain *deadline)
-{
- uint32_t t = timeout ;
- int globalt ;
- tain globaltto ;
- tain_sub(&globaltto, deadline, &STAMP) ;
- globalt = tain_to_millisecs(&globaltto) ;
- if (!globalt) globalt = 1 ;
- if (globalt > 0 && (!t || (unsigned int)globalt < t))
- t = (uint32_t)globalt ;
- return t ;
-}
-
-static int ssexec_callback(stralloc *sa, ssexec_t *info, unsigned int what)
-{
- size_t pos = 0, len = sastr_len(sa), e = 1 ;
-
- int n = what == 2 ? 2 : 1 ;
- int nargc = n + len ;
- char const *prog = PROG ;
- char const *newargv[nargc] ;
- unsigned int m = 0 ;
-
- newargv[m++] = "all" ;
- if (what == 2)
- newargv[m++] = "-u" ;
-
- FOREACH_SASTR(sa, pos)
- newargv[m++] = sa->s + pos ;
-
- newargv[m] = 0 ;
-
- if (!what) {
-
- PROG = "start" ;
- e = ssexec_start(nargc, newargv, info) ;
- PROG = prog ;
-
- } else {
-
- PROG = "stop" ;
- e = ssexec_stop(nargc, newargv, info) ;
- PROG = prog ;
- }
-
- return e ;
-}
-
-static int doit(char const *treename, ssexec_t *sinfo, unsigned int what, tain *deadline)
-{
- log_flow() ;
-
- int r, e = 0 ;
- ssexec_t info = SSEXEC_ZERO ;
-
- ssexec_copy(&info, sinfo) ;
-
- {
- info.treename.len = 0 ;
-
- if (!auto_stra(&info.treename, treename))
- log_die_nomem("stralloc") ;
-
- info.tree.len = 0 ;
-
- if (!auto_stra(&info.tree, treename))
- log_die_nomem("stralloc") ;
-
- r = tree_sethome(&info) ;
- if (r <= 0)
- log_warnu_return(LOG_EXIT_ZERO, "find tree: ", info.treename.s) ;
-
- if (!tree_get_permissions(info.tree.s, info.owner))
- log_warn_return(LOG_EXIT_ZERO, "You're not allowed to use the tree: ", info.tree.s) ;
-
- }
-
- if (!tree_isinitialized(info.base.s, info.treename.s) && !what) {
-
- if (!what) {
-
- int nargc = 3 ;
- char const *prog = PROG ;
- char const *newargv[nargc] ;
- unsigned int m = 0 ;
-
- newargv[m++] = "all (child)" ;
- newargv[m++] = info.treename.s ;
- newargv[m++] = 0 ;
-
- PROG = "init" ;
- if (ssexec_init(nargc, newargv, &info))
- log_warnu_return(LOG_EXIT_ZERO, "initiate services of tree: ", info.treename.s) ;
- PROG = prog ;
-
- } else {
-
- log_warn ("uninitialized tree: ", info.treename.s) ;
- goto end ;
- }
- }
-
- {
- stralloc sa = STRALLOC_ZERO ;
- char const *exclude[2] = { SS_MASTER + 1 , 0 } ;
- size_t treelen = info.tree.len + SS_SVDIRS_LEN + SS_RESOLVE_LEN ;
- char tree[treelen + 1] ;
-
- auto_strings(tree, info.tree.s, SS_SVDIRS, SS_RESOLVE) ;
-
- if (!sastr_dir_get(&sa, tree, exclude, S_IFREG))
- log_dieu(LOG_EXIT_SYS, "get services list from tree: ", info.treename.s) ;
-
- if (!sa.len) {
-
- log_info("Empty tree: ", info.treename.s, " -- nothing to do") ;
-
- } else {
-
- if (!ssexec_callback(&sa, &info, what))
- goto err ;
-
- if (what == 2)
- log_info("Unsupervised successfully tree: ", info.treename.s) ;
- }
-
- stralloc_free(&sa) ;
- }
- end:
- e = 1 ;
- err:
- ssexec_free(&info) ;
- return e ;
-}
-
-static int check_action(pidtree_t *apidt, unsigned int pos, unsigned int receive, unsigned int what)
-{
- unsigned int p = char2enum[receive] ;
- unsigned char action = actions[what][p] ;
-
- switch(action) {
-
- case TREE_ACTION_GOTIT:
- FLAGS_SET(apidt[pos].state, (!what ? FLAGS_UP : FLAGS_DOWN)) ;
- return 1 ;
-
- case TREE_ACTION_FATAL:
- FLAGS_SET(apidt[pos].state, FLAGS_FATAL) ;
- return -1 ;
-
- case TREE_ACTION_WAIT:
- return 0 ;
-
- case TREE_ACTION_UNKNOWN:
- default:
- log_die(LOG_EXIT_ZERO,"invalid action -- please make a bug report") ;
- }
-
-}
-
-static int async_deps(pidtree_t *apidt, unsigned int i, unsigned int what, ssexec_t *info, graph_t *graph, tain *deadline)
-{
- log_flow() ;
-
- int r ;
- unsigned int pos = 0, id = 0, ilog = 0, idx = 0 ;
- char buf[(UINT_FMT*2)*SS_MAX_SERVICE + 1] ;
-
- tain dead ;
- tain_now_set_stopwatch_g() ;
- tain_add_g(&dead, deadline) ;
-
- iopause_fd x = { .fd = apidt[i].pipe[0], .events = IOPAUSE_READ, 0 } ;
-
- unsigned int n = apidt[i].nedge ;
- unsigned int visit[n] ;
-
- graph_array_init_single(visit, n) ;
-
- while (pos < n) {
-
- r = iopause_g(&x, 1, &dead) ;
-
- if (r < 0)
- log_dieusys(LOG_EXIT_SYS, "iopause") ;
-
- if (!r) {
- errno = ETIMEDOUT ;
- log_dieusys(LOG_EXIT_SYS,"time out", pares[apidt[i].aresid].sa.s + pares[apidt[i].aresid].name) ;
- }
-
- if (x.revents & IOPAUSE_READ) {
-
- memset(buf, 0, sizeof(buf)) ;
- r = read(apidt[i].pipe[0], buf, sizeof(buf)) ;
- if (r < 0)
- log_dieu(LOG_EXIT_SYS, "read from pipe") ;
- buf[r] = 0 ;
-
- idx = 0 ;
-
- while (r != -1) {
- /** The buf might contain multiple signal coming
- * from the dependencies if they finished before
- * the start of this read process. Check every
- * signal received.*/
- r = get_len_until(buf + idx, '@') ;
-
- if (r < 0)
- /* no more signal */
- goto next ;
-
- char line[r + 1] ;
- memcpy(line, buf + idx, r) ;
- line[r] = 0 ;
-
- idx += r + 1 ;
-
- /**
- * the received string have the format:
- * index_of_the_ares_array_of_the_tree_dependency:signal_receive
- *
- * typically:
- * - 10:D
- * - 30:u
- * - ...
- *
- * Split it and check the signal receive.*/
- int sep = get_len_until(line, ':') ;
- if (sep < 0)
- log_die(LOG_EXIT_SYS, "received bad signal format -- please make a bug report") ;
-
- unsigned int c = line[sep + 1] ;
- char pc[2] = { c, 0 } ;
- line[sep] = 0 ;
-
- if (!uint0_scan(line, &id))
- log_dieusys(LOG_EXIT_SYS, "retrieve service number -- please make a bug report") ;
-
- ilog = id ;
-
- log_trace(pares[apidt[i].aresid].sa.s + pares[apidt[i].aresid].name, " acknowledges: ", pc, " from: ", pares[ilog].sa.s + pares[ilog].name) ;
-
- if (!visit[pos]) {
-
- id = pidtree_get_id(apidt, id) ;
- if (id < 0)
- log_dieu(LOG_EXIT_SYS, "get apidtree id -- please make a bug report") ;
-
- id = check_action(apidt, id, c, what) ;
- if (id < 0)
- log_die(LOG_EXIT_SYS, "tree dependency: ", pares[ilog].sa.s + pares[ilog].name, " of: ", pares[apidt[i].aresid].sa.s + pares[apidt[i].aresid].name," crashed") ;
-
- if (!id)
- continue ;
-
- visit[pos++]++ ;
- }
- }
- }
- next:
-
- }
-
- return 1 ;
-}
-
-static int async(pidtree_t *apidt, unsigned int i, unsigned int what, ssexec_t *info, graph_t *graph, tain *deadline)
-{
- log_flow() ;
-
- int e = 0 ;
-
- char *name = graph->data.s + genalloc_s(graph_hash_t,&graph->hash)[apidt[i].vertex].vertex ;
-
- log_trace("beginning of the process of: ", name) ;
-
- if (FLAGS_ISSET(apidt[i].state, (!what ? FLAGS_DOWN : FLAGS_UP)) ||
- /** force to pass through unsupersive process even
- * if the tree is marked down */
- FLAGS_ISSET(apidt[i].state, (what ? FLAGS_DOWN : FLAGS_UP)) && what == 2) {
-
- if (!FLAGS_ISSET(apidt[i].state, FLAGS_BLOCK)) {
-
- FLAGS_SET(apidt[i].state, FLAGS_BLOCK) ;
-
- if (apidt[i].nedge)
- if (!async_deps(apidt, i, what, info, graph, deadline))
- log_warnu_return(LOG_EXIT_ZERO, !what ? "start" : "stop", " dependencies of tree: ", name) ;
-
- e = doit(name, info, what, deadline) ;
-
- } else {
-
- log_trace("skipping tree: ", name, " -- already in ", what ? "stopping" : "starting", " process") ;
-
- notify(apidt, i, what ? "d" : "u", what) ;
-
- }
-
- } else {
-
- /** do not notify here, the handle will make it for us */
- log_trace("skipping service: ", name, " -- already ", what ? "down" : "up") ;
-
- }
-
- return e ;
-}
-
-static int waitit(pidtree_t *apidt, unsigned int what, graph_t *graph, tain *deadline, ssexec_t *info)
-{
- log_flow() ;
-
- unsigned int e = 0, pos = 0 ;
- int r ;
- pid_t pid ;
- pidtree_t apidtreetable[napid] ;
- pidtree_t_ref apidtree = apidtreetable ;
-
- tain_now_set_stopwatch_g() ;
- tain_add_g(deadline, deadline) ;
-
- int spfd = selfpipe_init() ;
-
- if (spfd < 0)
- log_dieusys(LOG_EXIT_SYS, "selfpipe_init") ;
-
- if (!selfpipe_trap(SIGCHLD) ||
- !selfpipe_trap(SIGINT) ||
- !selfpipe_trap(SIGKILL) ||
- !selfpipe_trap(SIGTERM) ||
- !sig_altignore(SIGPIPE))
- log_dieusys(LOG_EXIT_SYS, "selfpipe_trap") ;
-
-
- iopause_fd x = { .fd = spfd, .events = IOPAUSE_READ, .revents = 0 } ;
-
- for (; pos < napid ; pos++) {
-
- apidtree[pos] = apidt[pos] ;
-
- if (pipe(apidtree[pos].pipe) < 0)
- log_dieusys(LOG_EXIT_SYS, "pipe");
-
- }
-
- for (pos = 0 ; pos < napid ; pos++) {
-
- pid = fork() ;
-
- if (pid < 0)
- log_dieusys(LOG_EXIT_SYS, "fork") ;
-
- if (!pid) {
-
- selfpipe_finish() ;
-
- close(apidtree[pos].pipe[1]) ;
-
- e = async(apidtree, pos, what, info, graph, deadline) ;
-
- goto end ;
- }
-
- apidtree[pos].pid = pid ;
-
- close(apidtree[pos].pipe[0]) ;
-
- npid++ ;
- }
-
- while (npid) {
-
- r = iopause_g(&x, 1, deadline) ;
-
- if (r < 0)
- log_dieusys(LOG_EXIT_SYS, "iopause") ;
-
- if (!r) {
- errno = ETIMEDOUT ;
- log_diesys(LOG_EXIT_SYS,"time out") ;
- }
-
- if (x.revents & IOPAUSE_READ) {
- e = handle_signal(apidtree, what, graph, info) ;
-
- if (e)
- break ;
- }
- }
-
-
- selfpipe_finish() ;
- end:
- for (pos = 0 ; pos < napid ; pos++) {
- close(apidtree[pos].pipe[1]) ;
- close(apidtree[pos].pipe[0]) ;
- }
-
- return e ;
-}
-
-int ssexec_all(int argc, char const *const *argv, ssexec_t *info)
-{
- log_flow() ;
-
- int r, shut = 0, fd ;
- tain deadline ;
- uint8_t what = 0, requiredby = 0, found = 0 ;
- stralloc sa = STRALLOC_ZERO ;
- size_t pos = 0 ;
-
- unsigned int areslen = 0, list[SS_MAX_SERVICE], visit[SS_MAX_SERVICE] ;
- resolve_tree_t ares[SS_MAX_SERVICE] ;
- resolve_wrapper_t_ref wres = 0 ;
-
- graph_t graph = GRAPH_ZERO ;
-
- {
- subgetopt l = SUBGETOPT_ZERO ;
-
- for (;;)
- {
- int opt = subgetopt_r(argc, argv, OPTS_ALL, &l) ;
- if (opt == -1) break ;
-
- switch (opt)
- {
- case 'f' : shut = 1 ; break ;
- default : log_usage(usage_all) ;
- }
- }
- argc -= l.ind ; argv += l.ind ;
- }
-
- if (argc < 1)
- log_usage(usage_all) ;
-
- info->treename.len = 0 ;
-
- if (argv[1]) {
- if (!auto_stra(&info->treename, argv[1]))
- log_die_nomem("stralloc") ;
- }
-
- if (info->timeout)
- tain_from_millisecs(&deadline, info->timeout) ;
- else
- deadline = tain_infinite_relative ;
-
- what = parse_signal(*argv) ;
-
- reloadmsg = what ;
-
- if (what)
- requiredby = 1 ;
-
- if ((svc_scandir_ok(info->scandir.s)) <= 0)
- log_die(LOG_EXIT_SYS,"scandir: ", info->scandir.s," is not running") ;
-
- graph_build_tree(&graph, info->base.s, E_RESOLVE_TREE_MASTER_ENABLED) ;
-
- if (!graph.mlen)
- log_die(LOG_EXIT_USER, "trees selection is not created -- creates its first") ;
-
- graph_array_init_single(visit, SS_MAX_SERVICE) ;
-
- if (!graph_matrix_sort_tosa(&sa, &graph))
- log_dieu(LOG_EXIT_SYS, "get list of trees for graph -- please make a bug report") ;
-
- FOREACH_SASTR(&sa, pos) {
-
- char *treename = sa.s + pos ;
-
- /** only on tree */
- if (info->treename.len) {
-
- if (!strcmp(info->treename.s, treename))
- found = 1 ;
- else continue ;
- }
-
- if (tree_resolve_array_search(ares, areslen, treename) < 0) {
-
- resolve_tree_t tres = RESOLVE_TREE_ZERO ;
- /** need to make a copy of the resolve due of the freed
- * of the wres struct at the end of the process */
- resolve_tree_t cp = RESOLVE_TREE_ZERO ;
- wres = resolve_set_struct(DATA_TREE, &tres) ;
-
- if (!resolve_read_g(wres, info->base.s, treename))
- log_dieu(LOG_EXIT_SYS, "read resolve file of: ", treename, " -- please make a bug report") ;
-
- tree_resolve_copy(&cp, &tres) ;
-
- ares[areslen++] = cp ;
-
- resolve_free(wres) ;
- }
-
- unsigned int l[graph.mlen], c = 0, pos = 0, idx = 0 ;
-
- idx = graph_hash_vertex_get_id(&graph, treename) ;
-
- if (!visit[idx]) {
- /** avoid double entry */
- list[napid++] = idx ;
- visit[idx] = 1 ;
-
- }
-
- /** find dependencies of the tree from the graph, do it recursively */
- c = graph_matrix_get_edge_g_sorted_list(l, &graph, treename, requiredby, 1) ;
-
- /** append to the list to deal with */
- for (; pos < c ; pos++) {
- if (!visit[l[pos]]) {
- list[napid++] = l[pos] ;
- visit[l[pos]] = 1 ;
- }
- }
- if (found)
- break ;
- }
-
- pidtree_t apidt[graph.mlen] ;
-
- pares = ares ;
- pareslen = &areslen ;
-
- pidtree_init_array(list, napid, apidt, &graph, ares, areslen, info, requiredby) ;
-
- if (shut) {
-
- pid_t pid ;
- int wstat = 0 ;
-
- pid = fork() ;
-
- if (pid < 0)
- log_dieusys(LOG_EXIT_SYS,"fork") ;
-
- if (!pid) {
-
- all_redir_fd() ;
-
- } else {
-
- if (waitpid_nointr(pid,&wstat, 0) < 0)
- log_dieusys(LOG_EXIT_SYS,"wait for child") ;
-
- if (wstat)
- log_die(LOG_EXIT_SYS,"child fail") ;
-
- r = 1 ;
-
- goto end ;
- }
- }
-
- if (!areslen) {
- log_warn("empty trees -- nothing to do") ;
- r = 0 ;
- goto end ;
- }
-
- r = waitit(apidt, what, &graph, &deadline, info) ;
-
- end:
-
- if (shut) {
-
- while((fd = open("/dev/tty",O_RDWR|O_NOCTTY)) >= 0)
- if (fd >= 3)
- break ;
-
- dup2 (fd,0) ;
- dup2 (fd,1) ;
- dup2 (fd,2) ;
- fd_close(fd) ;
- }
-
- graph_free_all(&graph) ;
- stralloc_free(&sa) ;
- tree_resolve_array_free(ares, areslen) ;
-
- return r ;
-}
--
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