From 701540827e27a4f07ac725db3ce361d3be0c106f Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Mon, 19 Jan 2015 16:11:24 +0000
Subject:  - added the s6_fdholder library to libs6. (Nothing useful yet.)  -
 fixed execline invocation in s6-log with slashpackage  - integrated
 s6_svc_main.c's functionality into s6-svscanctl and deleted it  - integrated
 Olivier Brunel's suggestions for wstat report in supervise/status  - minor
 fixes to s6-supervise's status reports  - separated sigaction calls in
 ftrigw_notifyb, this spares a few syscalls in s6-supervise  - updated doc to
 reflect the changes  - version bumped to 2.1.0.0 because API breakage
 (./finish, s6-svstat)

---
 src/libs6/ftrigw_notifyb_nosig.c | 62 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 src/libs6/ftrigw_notifyb_nosig.c

(limited to 'src/libs6/ftrigw_notifyb_nosig.c')

diff --git a/src/libs6/ftrigw_notifyb_nosig.c b/src/libs6/ftrigw_notifyb_nosig.c
new file mode 100644
index 0000000..0d7b565
--- /dev/null
+++ b/src/libs6/ftrigw_notifyb_nosig.c
@@ -0,0 +1,62 @@
+/* ISC license. */
+
+#include <unistd.h>
+#include <errno.h>
+#include <skalibs/direntry.h>
+#include <skalibs/allreadwrite.h>
+#include <skalibs/bytestr.h>
+#include <skalibs/djbunix.h>
+#include "ftrig1.h"
+#include <s6/ftrigw.h>
+
+int ftrigw_notifyb_nosig (char const *path, char const *s, unsigned int len)
+{
+  unsigned int i = 0 ;
+  DIR *dir = opendir(path) ;
+  if (!dir) return -1 ;
+  {
+    unsigned int pathlen = str_len(path) ;
+    char tmp[pathlen + FTRIG1_PREFIXLEN + 45] ;
+    byte_copy(tmp, pathlen, path) ;
+    tmp[pathlen] = '/' ; tmp[pathlen + FTRIG1_PREFIXLEN + 44] = 0 ;
+    for (;;)
+    {
+      direntry *d ;
+      int fd ;
+      errno = 0 ;
+      d = readdir(dir) ;
+      if (!d) break ;
+      if (str_diffn(d->d_name, FTRIG1_PREFIX, FTRIG1_PREFIXLEN)) continue ;
+      if (str_len(d->d_name) != FTRIG1_PREFIXLEN + 43) continue ;
+      byte_copy(tmp + pathlen + 1, FTRIG1_PREFIXLEN + 43, d->d_name) ;
+      fd = open_write(tmp) ;
+      if (fd == -1)
+      {
+        if (errno == ENXIO) unlink(tmp) ;
+      }
+      else
+      {
+        register int r = fd_write(fd, s, len) ;
+        if ((r < 0) || (unsigned int)r < len)
+        {
+          if (errno == EPIPE) unlink(tmp) ;
+           /* what to do if EGAIN ? full fifo -> fix the reader !
+              There's a race condition in extreme cases though ;
+              but it's still better to be nonblocking - the writer
+              shouldn't get in trouble because of a bad reader. */
+          fd_close(fd) ;
+        }
+        else
+        {
+          fd_close(fd) ;
+          i++ ;
+        }
+      }
+    }
+  }
+  {
+    int e = errno ;
+    dir_close(dir) ;
+    return e ? (errno = e, -1) : (int)i ;
+  }
+}
-- 
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