diff options
Diffstat (limited to 'ext2fs')
| -rw-r--r-- | ext2fs/ext2fs.c | 124 |
1 files changed, 49 insertions, 75 deletions
diff --git a/ext2fs/ext2fs.c b/ext2fs/ext2fs.c index 7c69a36b..f3a23c68 100644 --- a/ext2fs/ext2fs.c +++ b/ext2fs/ext2fs.c @@ -27,6 +27,8 @@ #include <string.h> #include <error.h> #include <argz.h> +#include <argp.h> +#include <hurd/store.h> #include <version.h> #include "ext2fs.h" @@ -42,22 +44,29 @@ int diskfs_shortcut_ifsock = 1; char *diskfs_server_name = "ext2fs"; char *diskfs_server_version = HURD_VERSION; -char *diskfs_extra_version = "ext2 " EXT2FS_VERSION; +char *diskfs_extra_version = "GNU Hurd; ext2 " EXT2FS_VERSION; int diskfs_synchronous = 0; int diskfs_readonly = 0; struct node *diskfs_root_node; + +struct store *store = 0; +struct store_parsed *store_parsed = 0; + +char *diskfs_disk_name = 0; #ifdef EXT2FS_DEBUG - int ext2_debug_flag = 0; +#endif /* Ext2fs-specific options. */ static const struct argp_option options[] = { +#ifdef EXT2FS_DEBUG {"debug", 'D', 0, 0, "Toggle debugging output" }, +#endif {0} }; @@ -67,17 +76,24 @@ parse_opt (int key, char *arg, struct argp_state *state) { switch (key) { +#ifdef EXT2FS_DEBUG case 'D': state->hook = (void *)1; /* Do it at the end */ break; +#endif case ARGP_KEY_INIT: + state->child_inputs[0] = state->input; +#ifdef EXT2FS_DEBUG state->hook = 0; +#endif break; case ARGP_KEY_SUCCESS: /* All options parse successfully, so implement ours if possible. */ +#ifdef EXT2FS_DEBUG if (state->hook) ext2_debug_flag = !ext2_debug_flag; +#endif break; default: @@ -85,52 +101,49 @@ parse_opt (int key, char *arg, struct argp_state *state) } return 0; } - -/* Add our startup arguments to the standard diskfs set. */ -static const struct argp *startup_parents[] = { &diskfs_std_device_startup_argp, 0}; -static struct argp startup_argp = {options, parse_opt, 0, 0, startup_parents}; - -/* Similarly at runtime. */ -static const struct argp *runtime_parents[] = {&diskfs_std_runtime_argp, 0}; -static struct argp runtime_argp = {options, parse_opt, 0, 0, runtime_parents}; - -struct argp *diskfs_runtime_argp = (struct argp *)&runtime_argp; /* Override the standard diskfs routine so we can add our own output. */ error_t -diskfs_get_options (char **argz, unsigned *argz_len) +diskfs_append_args (char **argz, unsigned *argz_len) { error_t err; - *argz = 0; - *argz_len = 0; - /* Get the standard things. */ err = diskfs_append_std_options (argz, argz_len); +#ifdef EXT2FS_DEBUG if (!err && ext2_debug_flag) - { - err = argz_add (argz, argz_len, "--debug"); - if (err) - free (argz); /* Deallocate what diskfs returned. */ - } + err = argz_add (argz, argz_len, "--debug"); +#endif + if (! err) + err = store_parsed_append_args (store_parsed, argz, argz_len); return err; } + +/* Add our startup arguments to the standard diskfs set. */ +static const struct argp *startup_parents[] = { &diskfs_store_startup_argp, 0}; +static struct argp startup_argp = {options, parse_opt, 0, 0, startup_parents}; -#else /* !EXT2FS_DEBUG */ - -#define startup_argp diskfs_std_device_startup_argp +/* Similarly at runtime. */ +static const struct argp *runtime_parents[] = {&diskfs_std_runtime_argp, 0}; +static struct argp runtime_argp = {options, parse_opt, 0, 0, runtime_parents}; -#endif /* EXT2FS_DEBUG */ +struct argp *diskfs_runtime_argp = (struct argp *)&runtime_argp; void main (int argc, char **argv) { error_t err; mach_port_t bootstrap = MACH_PORT_NULL; + struct store_argp_params store_params = { 0 }; + + argp_parse (&startup_argp, argc, argv, 0, 0, &store_params); + store_parsed = store_params.result; - argp_parse (&startup_argp, argc, argv, 0, 0, 0); + err = store_parsed_name (store_parsed, &diskfs_disk_name); + if (err) + error (2, err, "store_parsed_name"); diskfs_console_stdio (); @@ -147,19 +160,19 @@ main (int argc, char **argv) if (err) error (4, err, "init"); - err = diskfs_device_open (); + err = store_parsed_open (store_parsed, diskfs_readonly ? STORE_READONLY : 0, + &store); if (err) - error (3, err, "%s", diskfs_device_arg); + error (3, err, "%s", diskfs_disk_name); - if ((diskfs_device_size << diskfs_log2_device_block_size) - < SBLOCK_OFFS + SBLOCK_SIZE) + if (store->size < SBLOCK_OFFS + SBLOCK_SIZE) ext2_panic ("superblock won't fit on the device!"); - if (diskfs_log2_device_block_size == 0) + if (store->log2_block_size == 0) ext2_panic ("device block size (%u) not a power of two", - diskfs_device_block_size); - if (diskfs_log2_device_blocks_per_page < 0) + store->block_size); + if (store->log2_blocks_per_page < 0) ext2_panic ("device block size (%u) greater than page size (%d)", - diskfs_device_block_size, vm_page_size); + store->block_size, vm_page_size); /* Map the entire disk. */ create_disk_pager (); @@ -167,7 +180,7 @@ main (int argc, char **argv) /* Start the first request thread, to handle RPCs and page requests. */ diskfs_spawn_first_thread (); - pokel_init (&global_pokel, disk_pager, disk_image); + pokel_init (&global_pokel, diskfs_disk_pager, disk_image); get_hypermetadata(); @@ -194,46 +207,7 @@ error_t diskfs_reload_global_state () { pokel_flush (&global_pokel); - pager_flush (disk_pager, 1); + pager_flush (diskfs_disk_pager, 1); get_hypermetadata (); return 0; } - -/* ---------------------------------------------------------------- */ - -static spin_lock_t free_page_bufs_lock = SPIN_LOCK_INITIALIZER; -static vm_address_t free_page_bufs = 0; - -/* Returns a single page page-aligned buffer. */ -vm_address_t get_page_buf () -{ - vm_address_t buf; - - spin_lock (&free_page_bufs_lock); - - buf = free_page_bufs; - if (buf == 0) - { - error_t err; - spin_unlock (&free_page_bufs_lock); - err = vm_allocate (mach_task_self (), &buf, vm_page_size, 1); - if (err) - buf = 0; - } - else - { - free_page_bufs = *(vm_address_t *)buf; - spin_unlock (&free_page_bufs_lock); - } - - return buf; -} - -/* Frees a block returned by get_page_buf. */ -void free_page_buf (vm_address_t buf) -{ - spin_lock (&free_page_bufs_lock); - *(vm_address_t *)buf = free_page_bufs; - free_page_bufs = buf; - spin_unlock (&free_page_bufs_lock); -} |