diff options
author | Miles Bader <miles@gnu.org> | 1997-07-09 20:17:26 +0000 |
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committer | Miles Bader <miles@gnu.org> | 1997-07-09 20:17:26 +0000 |
commit | c65388feeea5dc5218d4100d65733f7a268dafb8 (patch) | |
tree | b733dbda79aea124c70c21e89b4e0b7d21a0a383 /sutils | |
parent | 11314ecfd62edb90b70832b5be6db559a49d39a0 (diff) |
Initial checkin
Diffstat (limited to 'sutils')
-rw-r--r-- | sutils/swapoff.c | 2 | ||||
-rw-r--r-- | sutils/swapon.c | 130 |
2 files changed, 132 insertions, 0 deletions
diff --git a/sutils/swapoff.c b/sutils/swapoff.c new file mode 100644 index 00000000..42521257 --- /dev/null +++ b/sutils/swapoff.c @@ -0,0 +1,2 @@ +#define SWAPOFF +#include "swapon.c" diff --git a/sutils/swapon.c b/sutils/swapon.c new file mode 100644 index 00000000..a1e9e63f --- /dev/null +++ b/sutils/swapon.c @@ -0,0 +1,130 @@ +/* Add/remove paging devices + + Copyright (C) 1997 Free Software Foundation, Inc. + Written by Miles Bader <miles@gnu.ai.mit.edu> + This file is part of the GNU Hurd. + + The GNU Hurd is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public License as + published by the Free Software Foundation; either version 2, or (at + your option) any later version. + + The GNU Hurd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111, USA. */ + +#include <hurd.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <argp.h> +#include <error.h> +#include <hurd/store.h> +#include <version.h> +#include <mach/default_pager.h> + +#ifdef SWAPOFF +const char *argp_program_version = STANDARD_HURD_VERSION (swapoff); +#else +const char *argp_program_version = STANDARD_HURD_VERSION (swapon); +#endif + +static struct argp_option options[] = +{ + {"standard", 'a', 0, 0, "Use all devices marked as `sw' in /etc/fstab"}, + {0, 0} +}; +static char *args_doc = "DEVICE..."; + +#ifdef SWAPOFF +static char *doc = "Stop paging onto DEVICE..."; +#else +static char *doc = "Start paging onto DEVICE..."; +#endif + +static void +swaponoff (char *file, int add) +{ + error_t err; + struct store *store; + static mach_port_t def_pager = MACH_PORT_NULL; + static mach_port_t dev_master = MACH_PORT_NULL; + + err = store_open (file, 0, 0, &store); + if (err) + { + error (0, err, "%s", file); + return; + } + + if (store->class != &store_device_class) + { + error (0, 0, "%s: Can't get device", file); + return; + } + if (! (store->flags & STORE_ENFORCED)) + { + error (0, 0, "%s: Can only page to the entire device", file); + return; + } + + if (def_pager == MACH_PORT_NULL) + { + mach_port_t host; + + err = get_privileged_ports (&host, &dev_master); + if (err) + error (12, err, "Cannot get host port"); + + err = vm_set_default_memory_manager (host, &def_pager); + mach_port_deallocate (mach_task_self (), host); + if (err) + error (13, err, "Cannot get default pager port"); + } + + { + char pname[sizeof "/dev/" + strlen (store->name) + 1]; + snprintf (pname, sizeof pname, "/dev/%s", store->name); + err = default_pager_paging_file (def_pager, dev_master, pname, add); + if (err) + error (0, err, "%s", file); + } + + store_free (store); +} + +void +main(int argc, char *argv[]) +{ + /* Parse our options... */ + error_t parse_opt (int key, char *arg, struct argp_state *state) + { + switch (key) + { + case 'a': + argp_failure (state, 5, 0, "--standard: Not supported yet"); + + case ARGP_KEY_ARG: +#ifdef SWAPOFF + swaponoff (arg, 0); +#else + swaponoff (arg, 1); +#endif + break; + + default: + return ARGP_ERR_UNKNOWN; + } + return 0; + } + struct argp argp = {options, parse_opt, args_doc, doc}; + + argp_parse (&argp, argc, argv, 0, 0, 0); + + exit(0); +} |