Added fdholder, beta. Documentation will come next.

1 files changed, 82 insertions, 0 deletions

diff --git a/src/fdholder/s6-fdholder-getdumpc.c b/src/fdholder/s6-fdholder-getdumpc.c
new file mode 100644
index 0000000..ff7fd9d
--- /dev/null
+++ b/src/fdholder/s6-fdholder-getdumpc.c
@@ -0,0 +1,82 @@
+/* ISC license. */
+
+#include <skalibs/uint.h>
+#include <skalibs/bytestr.h>
+#include <skalibs/strerr2.h>
+#include <skalibs/sgetopt.h>
+#include <skalibs/tai.h>
+#include <skalibs/djbunix.h>
+#include <skalibs/genalloc.h>
+#include <s6/s6-fdholder.h>
+
+#define USAGE "s6-fdholder-getdumpc [ -t timeout ] prog..."
+#define dieusage() strerr_dieusage(100, USAGE)
+
+int main (int argc, char const *const *argv, char const *const *envp)
+{
+  s6_fdholder_t a = S6_FDHOLDER_ZERO ;
+  genalloc dump = GENALLOC_ZERO ;
+  tain_t deadline, halfinfinite ;
+  PROG = "s6-fdholder-getdumpc" ;
+  {
+    unsigned int t = 0 ;
+    subgetopt_t l = SUBGETOPT_ZERO ;
+    for (;;)
+    {
+      register int opt = subgetopt_r(argc, argv, "t:", &l) ;
+      if (opt == -1) break ;
+      switch (opt)
+      {
+        case 't' : if (!uint0_scan(l.arg, &t)) dieusage() ; break ;
+        default : dieusage() ;
+      }
+    }
+    argc -= l.ind ; argv += l.ind ;
+    if (t) tain_from_millisecs(&deadline, t) ;
+    else deadline = tain_infinite_relative ;
+  }
+  if (!argc) dieusage() ;
+
+  s6_fdholder_init(&a, 6) ;
+  tain_now_g() ;
+  tain_add_g(&deadline, &deadline) ;
+  if (!s6_fdholder_getdump_g(&a, &dump, &deadline))
+    strerr_diefu1sys(111, "get dump") ;
+  s6_fdholder_free(&a) ;
+  tain_half(&halfinfinite, &tain_infinite_relative) ;
+  tain_add_g(&halfinfinite, &halfinfinite) ;
+  {
+    unsigned int n = genalloc_len(s6_fdholder_fd_t, &dump) ;
+    unsigned int pos = 0, i = 0 ;
+    char modifs[7 + UINT_FMT + (25 + TIMESTAMP + 4 * UINT_FMT) * n] ;
+    byte_copy(modifs + pos, 7, "S6_FD#=") ; pos += 7 ;
+    pos += uint_fmt(modifs + pos, n) ;
+    modifs[pos++] = 0 ;
+    for (; i < n ; i++)
+    {
+      s6_fdholder_fd_t *p = genalloc_s(s6_fdholder_fd_t, &dump) + i ;
+      unsigned int len = str_len(p->id) + 1 ;
+      if (uncoe(p->fd) < 0) strerr_diefu1sys(111, "uncoe") ;
+      byte_copy(modifs + pos, 6, "S6_FD_") ; pos += 6 ;
+      pos += uint_fmt(modifs + pos, i) ;
+      modifs[pos++] = '=' ;
+      pos += uint_fmt(modifs + pos, p->fd) ;
+      modifs[pos++] = 0 ;
+      byte_copy(modifs + pos, 8, "S6_FDID_") ; pos += 8 ;
+      pos += uint_fmt(modifs + pos, i) ;
+      modifs[pos++] = '=' ;
+      byte_copy(modifs + pos, len, p->id) ;
+      pos += len ;
+      if (tain_less(&p->limit, &halfinfinite))
+      {
+        byte_copy(modifs + pos, 11, "S6_FDLIMIT_") ; pos += 11 ;
+        pos += uint_fmt(modifs + pos, i) ;
+        modifs[pos++] = '=' ;
+        pos += timestamp_fmt(modifs + pos, &p->limit) ;
+        modifs[pos++] = 0 ;
+      }
+    }
+    pathexec_r(argv, envp, env_len(envp), modifs, pos) ;
+  }
+  strerr_dieexec(111, argv[0]) ;
+}