From a3cdeecf0033919e3b5a79c17c19b5ac98719256 Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Mon, 20 Jul 2015 20:20:54 +0000
Subject:  - Add timeout-finish support and "down-readiness"  - LOTS of
 refactoring to make this work  - Remove s6-notifywhenup  - s6-supervise now
 rocks the casbah  - rc for 2.2.0.0

---
 src/libs6/deps-lib/s6          |  1 +
 src/libs6/s6_svc_writectl.c    | 16 ++++++++++++++++
 src/libs6/s6_svstatus_pack.c   | 15 ++++++++++-----
 src/libs6/s6_svstatus_unpack.c | 37 ++++++++++++++-----------------------
 4 files changed, 41 insertions(+), 28 deletions(-)
 create mode 100644 src/libs6/s6_svc_writectl.c

(limited to 'src/libs6')

diff --git a/src/libs6/deps-lib/s6 b/src/libs6/deps-lib/s6
index 01b67c3..093db6a 100644
--- a/src/libs6/deps-lib/s6
+++ b/src/libs6/deps-lib/s6
@@ -26,6 +26,7 @@ s6_accessrules_uidgid_fs.o
 s6_supervise_lock.o
 s6_supervise_lock_mode.o
 s6_svc_write.o
+s6_svc_writectl.o
 s6_svstatus_pack.o
 s6_svstatus_read.o
 s6_svstatus_unpack.o
diff --git a/src/libs6/s6_svc_writectl.c b/src/libs6/s6_svc_writectl.c
new file mode 100644
index 0000000..2e308b9
--- /dev/null
+++ b/src/libs6/s6_svc_writectl.c
@@ -0,0 +1,16 @@
+/* ISC license. */
+
+#include <skalibs/bytestr.h>
+#include <s6/s6-supervise.h>
+
+int s6_svc_writectl (char const *service, char const *subdir, char const *s, unsigned int len)
+{
+  unsigned int svlen = str_len(service) ;
+  unsigned int sublen = str_len(subdir) ;
+  char fn[svlen + sublen + 10] ;
+  byte_copy(fn, svlen, service) ;
+  fn[svlen] = '/' ;
+  byte_copy(fn + svlen + 1, sublen, subdir) ;
+  byte_copy(fn + svlen + 1 + sublen, 9, "/control") ;
+  return s6_svc_write(fn, s, len) ;
+}
diff --git a/src/libs6/s6_svstatus_pack.c b/src/libs6/s6_svstatus_pack.c
index 2b1f102..cc92621 100644
--- a/src/libs6/s6_svstatus_pack.c
+++ b/src/libs6/s6_svstatus_pack.c
@@ -1,6 +1,6 @@
 /* ISC license. */
 
-#include <skalibs/uint32.h>
+#include <skalibs/uint16.h>
 #include <skalibs/uint64.h>
 #include <skalibs/tai.h>
 #include <s6/s6-supervise.h>
@@ -8,8 +8,13 @@
 void s6_svstatus_pack (char *pack, s6_svstatus_t const *sv)
 {
   tain_pack(pack, &sv->stamp) ;
-  uint32_pack(pack + 12, (uint32)sv->pid) ;
-  pack[16] = sv->flagpaused | (sv->flagfinishing << 1) ;
-  pack[17] = sv->flagwant ? sv->flagwantup ? 'u' : 'd' : 0 ;
-  uint64_pack(pack + 18, (uint64)sv->wstat) ;
+  tain_pack(pack + 12, &sv->readystamp) ;
+  uint64_pack_big(pack + 24, (uint64)sv->pid) ;
+  uint16_pack_big(pack + 32, (uint16)sv->wstat) ;
+  pack[34] =
+    sv->flagpaused |
+    (sv->flagfinishing << 1) |
+    (sv->flagwant << 2) |
+    (sv->flagwantup << 3) |
+    (sv->flagready << 4) ;
 }
diff --git a/src/libs6/s6_svstatus_unpack.c b/src/libs6/s6_svstatus_unpack.c
index 3fbc205..2e78dcb 100644
--- a/src/libs6/s6_svstatus_unpack.c
+++ b/src/libs6/s6_svstatus_unpack.c
@@ -1,33 +1,24 @@
 /* ISC license. */
 
-#include <skalibs/uint32.h>
+#include <sys/types.h>
+#include <skalibs/uint16.h>
 #include <skalibs/uint64.h>
 #include <skalibs/tai.h>
 #include <s6/s6-supervise.h>
 
 void s6_svstatus_unpack (char const *pack, s6_svstatus_t *sv)
 {
-  uint32 pid ;
-  uint64 wstat ;
+  uint64 pid ;
+  uint16 wstat ;
   tain_unpack(pack, &sv->stamp) ;
-  uint32_unpack(pack + 12, &pid) ;
-  sv->pid = (unsigned int)pid ;
-  uint64_unpack(pack + 18, &wstat) ;
-  sv->wstat = (unsigned int)wstat ;
-  sv->flagpaused = pack[16] & 1 ;
-  sv->flagfinishing = (pack[16] >> 1) & 1 ;
-  switch (pack[17])
-  {
-    case 'u' :
-      sv->flagwant = 1 ;
-      sv->flagwantup = 1 ;
-      break ;
-    case 'd' :
-      sv->flagwant = 1 ;
-      sv->flagwantup = 0 ;
-      break ;
-    default :
-      sv->flagwant = 0 ;
-      sv->flagwantup = 0 ;
-  }
+  tain_unpack(pack + 12, &sv->readystamp) ;
+  uint64_unpack_big(pack + 24, &pid) ;
+  sv->pid = (pid_t)pid ;
+  uint16_unpack_big(pack + 32, &wstat) ;
+  sv->wstat = (int)wstat ;
+  sv->flagpaused = pack[34] & 1 ;
+  sv->flagfinishing = !!(pack[34] & 2) ;
+  sv->flagwant = !!(pack[34] & 4) ;
+  sv->flagwantup = !!(pack[34] & 8) ;
+  sv->flagready = !!(pack[34] & 16) ;
 }
-- 
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