diff options
| -rw-r--r-- | ChangeLog | 11 | ||||
| -rw-r--r-- | nis/nis_findserv.c | 85 | ||||
| -rw-r--r-- | nis/nis_intern.h | 18 |
3 files changed, 69 insertions, 45 deletions
@@ -1,10 +1,17 @@ +2001-12-12 Ulrich Drepper <drepper@redhat.com> + + * nis/nis_findserv.c (__nis_findfastest_with_timeout): Mostly the code + from __nis_findfastest. Take timeout value from parameter. + (__nis_findfastest): Call __nis_findfastest_with_timeout repeatedly. + * nis/nis_intern.h: Define parameters controlling __nis_findfastest. + Patch by Alexander Belopolsky <alexb@rentec.com>. + 2001-12-12 Andreas Jaeger <aj@suse.de> * configure.in: Use -nostartfiles -nostdlib for linker tests, fix combreloc test so that it works in this case. - * sysdeps/arm/dl-machine.h (elf_machine_rela): Fix typo in last - patch. + * sysdeps/arm/dl-machine.h (elf_machine_rela): Fix typo in last patch. 2001-12-12 NIIBE Yutaka <gniibe@m17n.org> diff --git a/nis/nis_findserv.c b/nis/nis_findserv.c index a82c1154ab..472a2bf529 100644 --- a/nis/nis_findserv.c +++ b/nis/nis_findserv.c @@ -110,28 +110,12 @@ struct findserv_req u_int server_ep; }; -long -__nis_findfastest (dir_binding *bind) -{ -#if 0 - unsigned long i, j; - for (i = 0; i < bind->server_len; i++) - for (j = 0; j < bind->server_val[i].ep.ep_len; ++j) - if (strcmp (bind->server_val[i].ep.ep_val[j].family, "inet") == 0) - if ((bind->server_val[i].ep.ep_val[j].proto == NULL) || - (bind->server_val[i].ep.ep_val[j].proto[0] == '-') || - (bind->server_val[i].ep.ep_val[j].proto[0] == '\0')) - { - bind->server_used = i; - bind->current_ep = j; - return 1; - } - - return 0; -#else - const struct timeval TIMEOUT50 = {5, 0}; - const struct timeval TIMEOUT00 = {0, 0}; +static long int +__nis_findfastest_with_timeout (dir_binding *bind, + const struct timeval *timeout) +{ + static const struct timeval TIMEOUT00 = { 0, 0 }; struct findserv_req *pings; struct sockaddr_in sin, saved_sin; int found = -1; @@ -201,7 +185,7 @@ __nis_findfastest (dir_binding *bind) /* Create RPC handle */ sock = socket (AF_INET, SOCK_DGRAM, IPPROTO_UDP); - clnt = clntudp_create (&saved_sin, NIS_PROG, NIS_VERSION, TIMEOUT50, &sock); + clnt = clntudp_create (&saved_sin, NIS_PROG, NIS_VERSION, *timeout, &sock); if (clnt == NULL) { close (sock); @@ -211,9 +195,7 @@ __nis_findfastest (dir_binding *bind) auth_destroy (clnt->cl_auth); clnt->cl_auth = authunix_create_default (); cu = (struct cu_data *) clnt->cl_private; - clnt_control (clnt, CLSET_TIMEOUT, (char *) &TIMEOUT00); ioctl (sock, FIONBIO, &dontblock); - /* Send to all servers the NULLPROC */ for (i = 0; i < pings_count; ++i) { @@ -222,30 +204,31 @@ __nis_findfastest (dir_binding *bind) memcpy ((char *) &cu->cu_raddr, (char *) &pings[i].sin, sizeof (struct sockaddr_in)); /* Transmit to NULLPROC, return immediately. */ - clnt_call (clnt, NULLPROC, + clnt_call (clnt, NULLPROC, (xdrproc_t) xdr_void, (caddr_t) 0, (xdrproc_t) xdr_void, (caddr_t) 0, TIMEOUT00); } - - /* Receive reply from NULLPROC asynchronously */ - while (RPC_SUCCESS == clnt_call (clnt, NULLPROC, - (xdrproc_t) NULL, (caddr_t) 0, - (xdrproc_t) xdr_void, (caddr_t) 0, - TIMEOUT00)) - { + + while (found == -1) { + /* Receive reply from NULLPROC asynchronously. Note null inproc. */ + int rc = clnt_call (clnt, NULLPROC, + (xdrproc_t) NULL, (caddr_t) 0, + (xdrproc_t) xdr_void, (caddr_t) 0, + *timeout); + if (RPC_SUCCESS == rc) { fastest = *((u_int32_t *) (cu->cu_inbuf)) - xid_seed; if (fastest < pings_count) { - break; + bind->server_used = pings[fastest].server_nr; + bind->current_ep = pings[fastest].server_ep; + found = 1; } + } else { + /* clnt_perror(clnt, "__nis_findfastest"); */ + break; } - - if (fastest < pings_count) - { - bind->server_used = pings[fastest].server_nr; - bind->current_ep = pings[fastest].server_ep; - found = 1; - } - + } + + auth_destroy (clnt->cl_auth); clnt_destroy (clnt); close (sock); @@ -253,5 +236,23 @@ __nis_findfastest (dir_binding *bind) free (pings); return found; -#endif +} + + +long int +__nis_findfastest (dir_binding *bind) +{ + struct timeval timeout = { __NIS_PING_TIMEOUT_START, 0 }; + long int found = -1; + long int retry = __NIS_PING_RETRY + 1; + + while (retry--) + { + found = __nis_findfastest_with_timeout (bind, &timeout); + if (found != -1) + break; + timeout.tv_sec += __NIS_PING_TIMEOUT_INCREMENT; + } + + return found; } diff --git a/nis/nis_intern.h b/nis/nis_intern.h index 53413eaae5..29a80a9188 100644 --- a/nis/nis_intern.h +++ b/nis/nis_intern.h @@ -1,4 +1,4 @@ -/* Copyright (c) 1997, 1998, 1999, 2000 Free Software Foundation, Inc. +/* Copyright (c) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Thorsten Kukuk <kukuk@suse.de>, 1997. @@ -22,6 +22,22 @@ #define __NIS_INTERN_H #include <features.h> +/* Configurable parameters for pinging NIS servers: */ + +/* Number of retries. */ +#ifndef __NIS_PING_RETRY +# define __NIS_PING_RETRY 2 +#endif +/* Initial timeout in seconds. */ +#ifndef __NIS_PING_TIMEOUT_START +# define __NIS_PING_TIMEOUT_START 3 +#endif +/* Timeout increment for retries in seconds. */ +#ifndef __NIS_PING_TIMEOUT_INCREMENT +# define __NIS_PING_TIMEOUT_INCREMENT 3 +#endif + + __BEGIN_DECLS struct nis_cb |