diff options
Diffstat (limited to 'src/libstddjb/ipc_timed_connect.c')
-rw-r--r-- | src/libstddjb/ipc_timed_connect.c | 26 |
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 ; +} |