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path: root/src/libs6rc/s6rc_servicedir_manage.c
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Diffstat (limited to 'src/libs6rc/s6rc_servicedir_manage.c')
-rw-r--r--src/libs6rc/s6rc_servicedir_manage.c123
1 files changed, 0 insertions, 123 deletions
diff --git a/src/libs6rc/s6rc_servicedir_manage.c b/src/libs6rc/s6rc_servicedir_manage.c
deleted file mode 100644
index 5449f35..0000000
--- a/src/libs6rc/s6rc_servicedir_manage.c
+++ /dev/null
@@ -1,123 +0,0 @@
-/* ISC license. */
-
-#include <string.h>
-#include <stdint.h>
-#include <unistd.h>
-#include <errno.h>
-#include <skalibs/direntry.h>
-#include <skalibs/djbunix.h>
-#include <skalibs/stralloc.h>
-#include <skalibs/genalloc.h>
-#include <s6/s6-supervise.h>
-#include <s6/ftrigr.h>
-#include <s6/ftrigw.h>
-#include <s6-rc/s6rc-servicedir.h>
-
-static inline void rollback (char const *live, char const *prefix, char const *s, size_t len)
-{
- while (len)
- {
- size_t n = strlen(s) + 1 ;
- s6rc_servicedir_unsupervise(live, prefix, s, 0) ;
- s += n ; len -= n ;
- }
-}
-
-int s6rc_servicedir_manage (char const *live, char const *prefix, tain_t const *deadline, tain_t *stamp)
-{
- ftrigr_t a = FTRIGR_ZERO ;
- stralloc newnames = STRALLOC_ZERO ;
- genalloc ids = GENALLOC_ZERO ; /* uint16_t */
- gid_t gid = getgid() ;
- size_t livelen = strlen(live) ;
- size_t prefixlen = strlen(prefix) ;
- int fdlock ;
- int ok = 1 ;
- DIR *dir ;
- char dirfn[livelen + 13] ;
- if (!ftrigr_startf(&a, deadline, stamp)) return 0 ;
- memcpy(dirfn, live, livelen) ;
- memcpy(dirfn + livelen, "/servicedirs", 13) ;
- dir = opendir(dirfn) ;
- if (!dir) goto closederr ;
- for (;;)
- {
- direntry *d ;
- errno = 0 ;
- d = readdir(dir) ;
- if (!d) break ;
- if (d->d_name[0] == '.') continue ;
- {
- size_t len = strlen(d->d_name) ;
- int r ;
- uint16_t id ;
- char srcfn[livelen + 20 + len] ;
- char dstfn[livelen + 10 + prefixlen + len] ;
- memcpy(srcfn, dirfn, livelen + 12) ;
- srcfn[livelen + 12] = '/' ;
- memcpy(srcfn + livelen + 13, d->d_name, len + 1) ;
- fdlock = s6_svc_lock_take(srcfn) ;
- if (fdlock < 0) goto err ;
- r = s6_svc_ok(srcfn) ;
- if (r < 0) goto erru ;
- if (!r)
- {
- memcpy(srcfn + livelen + 13 + len, "/down", 6) ;
- if (!touch(srcfn)) goto erru ;
- memcpy(srcfn + livelen + 14 + len, "event", 6) ;
- if (!ftrigw_fifodir_make(srcfn, gid, 0)) goto erru ;
- id = ftrigr_subscribe(&a, srcfn, "s", 0, deadline, stamp) ;
- if (!id) goto erru ;
- s6_svc_lock_release(fdlock) ;
- if (!genalloc_append(uint16_t, &ids, &id)) goto err ;
- srcfn[livelen + 13 + len] = 0 ;
- }
- else s6_svc_lock_release(fdlock) ;
- memcpy(dstfn, live, livelen) ;
- memcpy(dstfn + livelen, "/scandir/", 9) ;
- memcpy(dstfn + livelen + 9, prefix, prefixlen) ;
- memcpy(dstfn + livelen + 9 + prefixlen, d->d_name, len + 1) ;
- if (symlink(srcfn, dstfn) < 0)
- {
- if (!r || errno != EEXIST) goto err ;
- }
- else if (!r)
- {
- if (!stralloc_catb(&newnames, d->d_name, len + 1))
- {
- s6rc_servicedir_unsupervise(live, prefix, d->d_name, 0) ;
- goto err ;
- }
- }
- }
- }
- if (errno) goto err ;
- dir_close(dir) ;
- {
- char scanfn[livelen + 9] ;
- int r ;
- memcpy(scanfn, live, livelen) ;
- memcpy(scanfn + livelen, "/scandir", 9) ;
- r = s6_svc_writectl(scanfn, S6_SVSCAN_CTLDIR, "a", 1) ;
- if (r < 0) goto closederr ;
- if (!r) ok = 3 ;
- else if (ftrigr_wait_and(&a, genalloc_s(uint16_t, &ids), genalloc_len(uint16_t, &ids), deadline, stamp) < 0)
- goto closederr ;
- }
-
- ftrigr_end(&a) ;
- genalloc_free(uint16_t, &ids) ;
- stralloc_free(&newnames) ;
- return ok ;
-
- erru:
- s6_svc_lock_release(fdlock) ;
- err:
- dir_close(dir) ;
- closederr:
- ftrigr_end(&a) ;
- genalloc_free(uint16_t, &ids) ;
- rollback(live, prefix, newnames.s, newnames.len) ;
- stralloc_free(&newnames) ;
- return 0 ;
-}