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authorLaurent Bercot <ska-skaware@skarnet.org>2014-12-05 22:26:11 +0000
committerLaurent Bercot <ska-skaware@skarnet.org>2014-12-05 22:26:11 +0000
commit90b12bd71bb9fc79a4640b9112c13ef529d0196a (patch)
tree523b3f4ee2969e7a729bab2ba749c4b924ae62af /src/libs6/ftrigr_wait_and.c
downloads6-90b12bd71bb9fc79a4640b9112c13ef529d0196a.tar.xz
Initial commit
Diffstat (limited to 'src/libs6/ftrigr_wait_and.c')
-rw-r--r--src/libs6/ftrigr_wait_and.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/src/libs6/ftrigr_wait_and.c b/src/libs6/ftrigr_wait_and.c
new file mode 100644
index 0000000..f854a8d
--- /dev/null
+++ b/src/libs6/ftrigr_wait_and.c
@@ -0,0 +1,28 @@
+/* ISC license. */
+
+#include <errno.h>
+#include <skalibs/uint16.h>
+#include <skalibs/tai.h>
+#include <skalibs/iopause.h>
+#include <s6/ftrigr.h>
+
+int ftrigr_wait_and (ftrigr_t *a, uint16 const *idlist, unsigned int n, tain_t const *deadline, tain_t *stamp)
+{
+ iopause_fd x = { -1, IOPAUSE_READ, 0 } ;
+ x.fd = ftrigr_fd(a) ;
+ for (; n ; n--, idlist++)
+ {
+ for (;;)
+ {
+ char dummy ;
+ register int r = ftrigr_check(a, *idlist, &dummy) ;
+ if (r < 0) return r ;
+ else if (r) break ;
+ r = iopause_stamp(&x, 1, deadline, stamp) ;
+ if (r < 0) return r ;
+ else if (!r) return (errno = ETIMEDOUT, -1) ;
+ else if (ftrigr_update(a) < 0) return -1 ;
+ }
+ }
+ return 1 ;
+}