summaryrefslogtreecommitdiff
path: root/src/libstddjb/ipc_timed_connect.c
diff options
context:
space:
mode:
authorLaurent Bercot <ska-skaware@skarnet.org>2014-09-18 18:55:44 +0000
committerLaurent Bercot <ska-skaware@skarnet.org>2014-09-18 18:55:44 +0000
commit3534b428629be185e096be99e3bd5fdfe32d5544 (patch)
tree210ef3198ed66bc7f7b7bf6a85e4579f455e5a36 /src/libstddjb/ipc_timed_connect.c
downloadskalibs-3534b428629be185e096be99e3bd5fdfe32d5544.tar.xz
initial commit with rc for skalibs-2.0.0.0
Diffstat (limited to 'src/libstddjb/ipc_timed_connect.c')
-rw-r--r--src/libstddjb/ipc_timed_connect.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/src/libstddjb/ipc_timed_connect.c b/src/libstddjb/ipc_timed_connect.c
new file mode 100644
index 0000000..4f8e73d
--- /dev/null
+++ b/src/libstddjb/ipc_timed_connect.c
@@ -0,0 +1,26 @@
+/* ISC license. */
+
+#include <errno.h>
+#include <skalibs/error.h>
+#include <skalibs/tai.h>
+#include <skalibs/iopause.h>
+#include <skalibs/webipc.h>
+
+int ipc_timed_connect (int s, char const *path, tain_t const *deadline, tain_t *stamp)
+{
+ if (!ipc_connect(s, path))
+ {
+ iopause_fd x = { s, IOPAUSE_WRITE, 0 } ;
+ if (!error_isagain(errno) && !error_isalready(errno)) return 0 ;
+ for (;;)
+ {
+ register int r = iopause_stamp(&x, 1, deadline, stamp) ;
+ if (r < 0) return 0 ;
+ else if (!r) return (errno = ETIMEDOUT, 0) ;
+ else if (x.revents & IOPAUSE_EXCEPT) return 0 ;
+ else if (x.revents & IOPAUSE_WRITE) break ;
+ }
+ if (!ipc_connected(s)) return 0 ;
+ }
+ return 1 ;
+}