Prepare for 0.2.0.0, lots of changes.

- Make _r functions completely thread-safe.
- Save a lot of forking by having a persistent nsss_switch_query
- Introduce a timeout to make the server expire
- Start writing nsss-switch, not working yet.

Signed-off-by: Laurent Bercot <ska@appnovation.com>

1 files changed, 26 insertions, 0 deletions

diff --git a/src/libnsss/nsss_switch_startf.c b/src/libnsss/nsss_switch_startf.c
new file mode 100644
index 0000000..faabd1f
--- /dev/null
+++ b/src/libnsss/nsss_switch_startf.c
@@ -0,0 +1,26 @@
+/* ISC license. */
+
+#include <sys/types.h>
+
+#include <skalibs/posixplz.h>
+#include <skalibs/buffer.h>
+#include <skalibs/djbunix.h>
+
+#include <nsss/nsss-switch.h>
+
+static inline pid_t nsss_switch_spawn (nsss_switch_t *a, char const *const *argv, tain const *deadline, tain *stamp)
+{
+  int fd ;
+  pid_t pid = child_spawn1_socket(argv[0], argv, (char const *const *)environ, &fd) ;
+  if (!pid) return 0 ;
+  buffer_init(&a->b, &buffer_read, fd, a->buf, NSSS_SWITCH_BUFSIZE) ;
+  return pid ;
+}
+
+int nsss_switch_startf (nsss_switch_t *a, unsigned int what, char const *const *argv, tain const *deadline, tain *stamp)
+{
+  if (!a->held && !nsss_switch_spawn(a, argv, deadline, stamp)) return 0 ;
+  a->held |= what & 0x7u ;
+  a->path = 0 ;
+  return 1 ;
+}