X-Git-Url: http://git.tuebingen.mpg.de/?p=adu.git;a=blobdiff_plain;f=adu.c;h=9a0e513d941338195ddab459fc854a3792c05391;hp=9b800eaf1cb2e75b6b990ba7976049d7d0e82c15;hb=cab88f141a9550dcceee0ad8eab978660e0ae0de;hpb=1e011e70ba87fe6999a372b5c79c706e982b0316 diff --git a/adu.c b/adu.c index 9b800ea..9a0e513 100644 --- a/adu.c +++ b/adu.c @@ -1,5 +1,6 @@ #include "adu.h" #include /* readdir() */ +#include #include "gcc-compat.h" #include "cmdline.h" @@ -11,29 +12,21 @@ DEFINE_ERRLIST; int osl_errno; -/** Command line and config file options. */ -static struct gengetopt_args_info conf; - -enum uid_info_flags { - /** whether this slot of the hash table is used. */ - UI_FL_SLOT_USED = 1, - /** whether this uid should be taken into account. */ - UI_FL_ADMISSIBLE = 2, -}; +/** In case a signal is received, its number is stored here. */ +static int signum; -struct user_info { - uint32_t uid; - uint32_t flags; - struct osl_table *table; - uint64_t files; - uint64_t bytes; - uint64_t dirs; - struct osl_table_description *desc; -}; +/** Command line and config file options. */ +struct gengetopt_args_info conf; -/** The decimal representation of an uint64_t never exceeds that size. */ -#define FORMATED_VALUE_SIZE 25 +/** Global dir count. */ +uint64_t num_dirs = 0; +/** Global files count. */ +uint64_t num_files = 0; +/** Global bytes count. */ +uint64_t num_bytes = 0; +/** The number of different uids found so far. */ +uint32_t num_uids = 0; /** * Contains info for each user that owns at least one regular file. @@ -42,114 +35,20 @@ struct user_info { * option occupy a slot in this hash table. This allows to find out * quicky whether a uid is admissible. And yes, this has to be fast. */ -static struct user_info *uid_hash_table; - -/* these get filled in by the select command. */ -static char count_unit_buf[4] = "( )", size_unit_buf[4] = "( )"; - -static inline int ui_used(struct user_info *ui) -{ - return ui->flags & UI_FL_SLOT_USED; -} - -static inline int ui_admissible(struct user_info *ui) -{ - return ui->flags & UI_FL_ADMISSIBLE; -} - -struct uid_range { - uint32_t low; - uint32_t high; -}; - -static struct uid_range *admissible_uids; - -static inline int check_uid_arg(const char *arg, uint32_t *uid) -{ - const uint32_t max = ~0U; - /* - * we need an 64-bit int for string -> uid conversion because strtoll() - * returns a signed value. - */ - int64_t val; - int ret = para_atoi64(arg, &val); - - if (ret < 0) - return ret; - if (val < 0 || val > max) - return -ERRNO_TO_ERROR(EINVAL); - *uid = val; - return 1; -} - -static int parse_uid_range(const char *orig_arg, struct uid_range *ur) -{ - int ret; - char *arg = para_strdup(orig_arg), *p = strchr(arg, '-'); - - if (!p || p == arg) { /* -42 or 42 */ - ret = check_uid_arg(p? p + 1 : arg, &ur->high); - if (ret < 0) - goto out; - ur->low = p? 0 : ur->high; - ret = 1; - goto out; - } - /* 42- or 42-4711 */ - *p = '\0'; - p++; - ret = check_uid_arg(arg, &ur->low); - if (ret < 0) - goto out; - ur->high = ~0U; - if (*p) { /* 42-4711 */ - ret = check_uid_arg(p, &ur->high); - if (ret < 0) - goto out; - } - if (ur->low > ur->high) - ret = -ERRNO_TO_ERROR(EINVAL); -out: - if (ret < 0) - ERROR_LOG("bad uid option: %s\n", orig_arg); - else - INFO_LOG("admissible uid range: %u - %u\n", ur->low, - ur->high); - free(arg); - return ret; -} +struct user_info *uid_hash_table = NULL; - -/** evaluates to 1 if x < y, to -1 if x > y and to 0 if x == y */ -#define NUM_COMPARE(x, y) ((int)((x) < (y)) - (int)((x) > (y))) +/** + * The table containing the directory names and statistics. + */ +struct osl_table *dir_table = NULL; /** - * The log function. - * - * \param ll Loglevel. - * \param fml Usual format string. - * - * All XXX_LOG() macros use this function. + * The array of all uid ranges that were given at the command line. */ -__printf_2_3 void __log(int ll, const char* fmt,...) -{ - va_list argp; - FILE *outfd; - struct tm *tm; - time_t t1; - char str[255] = ""; +struct uid_range *admissible_uids; - if (ll < conf.loglevel_arg) - return; - outfd = stderr; - time(&t1); - tm = localtime(&t1); - strftime(str, sizeof(str), "%b %d %H:%M:%S", tm); - fprintf(outfd, "%s ", str); - va_start(argp, fmt); - vfprintf(outfd, fmt, argp); - va_end(argp); -} +/** Evaluates to 1 if x < y, to -1 if x > y and to 0 if x == y. */ +#define NUM_COMPARE(x, y) ((int)((x) < (y)) - (int)((x) > (y))) /** * Compare the size of two directories @@ -196,22 +95,6 @@ static int uint64_compare(const struct osl_object *obj1, return 0; } -/** The columns of the directory table. */ -enum dir_table_columns { - /** The name of the directory. */ - DT_NAME, - /** The dir count number. */ - DT_NUM, - /** The number of the parent directory. */ - DT_PARENT_NUM, - /** The number of bytes of all regular files. */ - DT_BYTES, - /** The number of all regular files. */ - DT_FILES, - /** Number of columns in this table. */ - NUM_DT_COLUMNS -}; - static struct osl_column_description dir_table_cols[] = { [DT_NAME] = { .storage_type = OSL_MAPPED_STORAGE, @@ -255,18 +138,6 @@ static struct osl_table_description dir_table_desc = { .column_descriptions = dir_table_cols, }; -/** The columns of the id table. */ -enum user_table_columns { - /** The numer of the directory. */ - UT_DIR_NUM, - /** The number of bytes of all regular files in this dir owned by this id. */ - UT_BYTES, - /** The number of files in this dir owned by this id. */ - UT_FILES, - /** Number of columns in this table. */ - NUM_UT_COLUMNS -}; - static struct osl_column_description user_table_cols[] = { [UT_DIR_NUM] = { .storage_type = OSL_MAPPED_STORAGE, @@ -291,7 +162,88 @@ static struct osl_column_description user_table_cols[] = { }, }; -static struct osl_table *dir_table; +static int check_uid_arg(const char *arg, uint32_t *uid) +{ + const uint32_t max = ~0U; + /* + * we need an 64-bit int for string -> uid conversion because strtoll() + * returns a signed value. + */ + int64_t val; + int ret = atoi64(arg, &val); + + if (ret < 0) + return ret; + if (val < 0 || val > max) + return -ERRNO_TO_ERROR(EINVAL); + *uid = val; + return 1; +} + +static int parse_uid_range(const char *orig_arg, struct uid_range *ur) +{ + int ret; + char *arg = adu_strdup(orig_arg), *p = strchr(arg, '-'); + + if (!p || p == arg) { /* -42 or 42 */ + ret = check_uid_arg(p? p + 1 : arg, &ur->high); + if (ret < 0) + goto out; + ur->low = p? 0 : ur->high; + ret = 1; + goto out; + } + /* 42- or 42-4711 */ + *p = '\0'; + p++; + ret = check_uid_arg(arg, &ur->low); + if (ret < 0) + goto out; + ur->high = ~0U; + if (*p) { /* 42-4711 */ + ret = check_uid_arg(p, &ur->high); + if (ret < 0) + goto out; + } + if (ur->low > ur->high) + ret = -ERRNO_TO_ERROR(EINVAL); +out: + if (ret < 0) + ERROR_LOG("bad uid option: %s\n", orig_arg); + else + INFO_LOG("admissible uid range: %u - %u\n", ur->low, + ur->high); + free(arg); + return ret; +} + +/** + * The log function. + * + * \param ll Loglevel. + * \param fml Usual format string. + * + * All XXX_LOG() macros use this function. + */ +__printf_2_3 void __log(int ll, const char* fmt,...) +{ + va_list argp; + FILE *outfd; + struct tm *tm; + time_t t1; + char str[255] = ""; + + if (ll < conf.loglevel_arg) + return; + outfd = stderr; + time(&t1); + tm = localtime(&t1); + strftime(str, sizeof(str), "%b %d %H:%M:%S", tm); + fprintf(outfd, "%s ", str); + va_start(argp, fmt); + vfprintf(outfd, fmt, argp); + va_end(argp); +} static int add_directory(char *dirname, uint64_t *dir_num, uint64_t *parent_dir_num, uint64_t *dir_size, uint64_t *dir_files) @@ -312,18 +264,21 @@ static int add_directory(char *dirname, uint64_t *dir_num, uint64_t *parent_dir_ return osl(osl_add_row(dir_table, dir_objects)); } -static uint32_t num_uids; - static int open_user_table(struct user_info *ui, int create) { int ret; + struct passwd *pw; - ui->desc = para_malloc(sizeof(*ui->desc)); + ui->desc = adu_malloc(sizeof(*ui->desc)); ui->desc->num_columns = NUM_UT_COLUMNS; ui->desc->flags = 0; ui->desc->column_descriptions = user_table_cols; - ui->desc->dir = para_strdup(conf.database_dir_arg); + ui->desc->dir = adu_strdup(conf.database_dir_arg); ui->desc->name = make_message("%u", (unsigned)ui->uid); + pw = getpwuid(ui->uid); + if (pw && pw->pw_name) + ui->pw_name = adu_strdup(pw->pw_name); + INFO_LOG(".............................uid #%u: %u\n", (unsigned)num_uids, (unsigned)ui->uid); if (create) { @@ -339,6 +294,7 @@ static int open_user_table(struct user_info *ui, int create) err: free((char *)ui->desc->name); free((char *)ui->desc->dir); + free(ui->pw_name); free(ui->desc); ui->desc->name = NULL; ui->desc->dir = NULL; @@ -349,13 +305,13 @@ err: } #define uid_hash_bits 8 -static uint32_t uid_hash_table_size = 1 << uid_hash_bits; +uint32_t uid_hash_table_size = 1 << uid_hash_bits; #define PRIME1 0x811c9dc5 #define PRIME2 0x01000193 -static void create_hash_table(void) +void create_hash_table(void) { - uid_hash_table = para_calloc(uid_hash_table_size + uid_hash_table = adu_calloc(uid_hash_table_size * sizeof(struct user_info)); } @@ -369,7 +325,7 @@ static int create_tables(void) { int ret; - dir_table_desc.dir = para_strdup(conf.database_dir_arg); + dir_table_desc.dir = adu_strdup(conf.database_dir_arg); ret = osl(osl_create_table(&dir_table_desc)); if (ret < 0) return ret; @@ -377,6 +333,79 @@ static int create_tables(void) return 1; } +static void close_dir_table(void) +{ + int ret; + + if (!dir_table) + return; + ret = osl(osl_close_table(dir_table, OSL_MARK_CLEAN)); + if (ret < 0) + ERROR_LOG("failed to close dir table: %s\n", adu_strerror(-ret)); + free((char *)dir_table_desc.dir); + dir_table = NULL; +} + +static void close_user_table(struct user_info *ui) +{ + int ret; + + if (!ui || !ui_used(ui) || !ui_admissible(ui)) + return; + ret = osl(osl_close_table(ui->table, OSL_MARK_CLEAN)); + if (ret < 0) + ERROR_LOG("failed to close user table %u: %s\n", + (unsigned) ui->uid, adu_strerror(-ret)); + free((char *)ui->desc->name); + ui->desc->name = NULL; + free((char *)ui->desc->dir); + ui->desc->dir = NULL; + free(ui->pw_name); + ui->pw_name = NULL; + free(ui->desc); + ui->desc = NULL; + ui->table = NULL; + ui->flags = 0; +} + +static void close_user_tables(void) +{ + struct user_info *ui; + + FOR_EACH_USER(ui) + close_user_table(ui); +} + +void close_all_tables(void) +{ + close_dir_table(); + close_user_tables(); + free_hash_table(); +} + +static void signal_handler(int s) +{ + signum = s; +} + +void check_signals(void) +{ + if (likely(!signum)) + return; + EMERG_LOG("caught signal %d\n", signum); + close_all_tables(); + exit(EXIT_FAILURE); +} + +static int init_signals(void) +{ + if (signal(SIGINT, &signal_handler) == SIG_ERR) + return -E_SIGNAL_SIG_ERR; + if (signal(SIGTERM, &signal_handler) == SIG_ERR) + return -E_SIGNAL_SIG_ERR; + return 1; +} + /* * We use a hash table of size s=2^uid_hash_bits to map the uids into the * interval [0..s]. Hash collisions are treated by open addressing, i.e. @@ -399,14 +428,6 @@ static uint32_t double_hash(uint32_t uid, uint32_t probe_num) % uid_hash_table_size; } -#define FOR_EACH_USER(ui) for (ui = uid_hash_table; ui && ui < uid_hash_table \ - + uid_hash_table_size; ui++) - -enum search_uid_flags { - OPEN_USER_TABLE = 1, - CREATE_USER_TABLE = 2, -}; - static int uid_is_admissible(uint32_t uid) { int i; @@ -423,7 +444,7 @@ static int uid_is_admissible(uint32_t uid) return i; } -static int search_uid(uint32_t uid, enum search_uid_flags flags, +int search_uid(uint32_t uid, enum search_uid_flags flags, struct user_info **ui_ptr) { uint32_t p; @@ -500,11 +521,10 @@ static int update_user_row(struct osl_table *t, uint64_t dir_num, } } -static uint64_t num_dirs; -static uint64_t num_files; -static uint64_t num_bytes; +/* id of the device containing the base dir. */ +static dev_t device_id; -int scan_dir(char *dirname, uint64_t *parent_dir_num) +static int scan_dir(char *dirname, uint64_t *parent_dir_num) { DIR *dir; struct dirent *entry; @@ -512,8 +532,9 @@ int scan_dir(char *dirname, uint64_t *parent_dir_num) uint64_t dir_size = 0, dir_files = 0; uint64_t this_dir_num = ++num_dirs; + check_signals(); DEBUG_LOG("----------------- %llu: %s\n", (long long unsigned)num_dirs, dirname); - ret = para_opendir(dirname, &dir, &cwd_fd); + ret = adu_opendir(dirname, &dir, &cwd_fd); if (ret < 0) { if (ret != -ERRNO_TO_ERROR(EACCES)) return ret; @@ -540,6 +561,8 @@ int scan_dir(char *dirname, uint64_t *parent_dir_num) if (!S_ISREG(m) && !S_ISDIR(m)) continue; if (S_ISDIR(m)) { + if (conf.one_file_system_given && s.st_dev != device_id) + continue; ret = scan_dir(entry->d_name, &this_dir_num); if (ret < 0) goto out; @@ -565,440 +588,14 @@ int scan_dir(char *dirname, uint64_t *parent_dir_num) &dir_size, &dir_files); out: closedir(dir); - ret2 = para_fchdir(cwd_fd); + ret2 = adu_fchdir(cwd_fd); if (ret2 < 0 && ret >= 0) ret = ret2; close(cwd_fd); return ret; } -static int get_dir_name_by_number(uint64_t *dirnum, char **name) -{ - char *result = NULL, *tmp; - struct osl_row *row; - uint64_t val = *dirnum; - struct osl_object obj = {.data = &val, .size = sizeof(val)}; - int ret; - -again: - ret = osl(osl_get_row(dir_table, DT_NUM, &obj, &row)); - if (ret < 0) - goto out; - ret = osl(osl_get_object(dir_table, row, DT_NAME, &obj)); - if (ret < 0) - goto out; - if (result) { - tmp = make_message("%s/%s", (char *)obj.data, result); - free(result); - result = tmp; - } else - result = para_strdup((char *)obj.data); - ret = osl(osl_get_object(dir_table, row, DT_PARENT_NUM, &obj)); - if (ret < 0) - goto out; - val = *(uint64_t *)obj.data; - if (val) - goto again; -out: - if (ret < 0) { - free(result); - *name = NULL; - } else - *name = result; - return ret; -} - -static int get_dir_name_of_row(struct osl_row *dir_table_row, char **name) -{ - struct osl_object obj; - int ret; - char *this_dir, *prefix = NULL; - - *name = NULL; - ret = osl(osl_get_object(dir_table, dir_table_row, DT_NAME, &obj)); - if (ret < 0) - return ret; - this_dir = para_strdup((char *)obj.data); - ret = osl(osl_get_object(dir_table, dir_table_row, DT_PARENT_NUM, &obj)); - if (ret < 0) - goto out; - if (!*(uint64_t *)obj.data) { - *name = this_dir; - return 1; - } - ret = get_dir_name_by_number((uint64_t *)obj.data, &prefix); - if (ret < 0) - goto out; - *name = make_message("%s/%s", prefix, this_dir); - free(prefix); - ret = 1; -out: - free(this_dir); - return ret; -} - -const uint64_t size_unit_divisors[] = { - [size_unit_arg_b] = 1ULL, - [size_unit_arg_k] = 1024ULL, - [size_unit_arg_m] = 1024ULL * 1024ULL, - [size_unit_arg_g] = 1024ULL * 1024ULL * 1024ULL, - [size_unit_arg_t] = 1024ULL * 1024ULL * 1024ULL * 1024ULL, -}; - -const uint64_t count_unit_divisors[] = { - - [count_unit_arg_n] = 1ULL, - [count_unit_arg_k] = 1000ULL, - [count_unit_arg_m] = 1000ULL * 1000ULL, - [count_unit_arg_g] = 1000ULL * 1000ULL * 1000ULL, - [count_unit_arg_t] = 1000ULL * 1000ULL * 1000ULL * 1000ULL, -}; - -const char size_unit_abbrevs[] = " BKMGT"; -const char count_unit_abbrevs[] = " kmgt"; - -static enum enum_size_unit format_size_value(enum enum_size_unit unit, - uint64_t value, int print_unit, char *result) -{ - enum enum_size_unit u = unit; - char unit_buf[2] = "\0\0"; - - if (unit == size_unit_arg_h) /* human readable */ - for (u = size_unit_arg_b; u < size_unit_arg_t && - value > size_unit_divisors[u + 1]; u++) - ; /* nothing */ - if (print_unit) - unit_buf[0] = size_unit_abbrevs[u]; - sprintf(result, "%llu%s", - (long long unsigned)value / size_unit_divisors[u], unit_buf); - return u; -} - -static enum enum_count_unit format_count_value(enum enum_count_unit unit, - uint64_t value, int print_unit, char *result) -{ - enum enum_count_unit u = unit; - char unit_buf[2] = "\0\0"; - - if (unit == count_unit_arg_h) /* human readable */ - for (u = count_unit_arg_n; u < count_unit_arg_t && - value > count_unit_divisors[u + 1]; u++) - ; /* nothing */ - if (print_unit) - unit_buf[0] = count_unit_abbrevs[u]; - sprintf(result, "%llu%s", - (long long unsigned)value / count_unit_divisors[u], unit_buf); - return u; -} - -enum global_stats_flags { - GSF_PRINT_DIRNAME = 1, - GSF_PRINT_BYTES = 2, - GSF_PRINT_FILES = 4, - GSF_COMPUTE_SUMMARY = 8, -}; - -struct global_stats_info { - uint32_t count; - int ret; - int osl_errno; - enum global_stats_flags flags; -}; - -static int global_stats_loop_function(struct osl_row *row, void *data) -{ - struct global_stats_info *gsi = data; - struct osl_object obj; - char *dirname, formated_value[FORMATED_VALUE_SIZE]; - int ret, summary = gsi->flags & GSF_COMPUTE_SUMMARY; - - if (!gsi->count && !summary) { - ret = -E_LOOP_COMPLETE; - goto err; - } - if (summary || (gsi->count && (gsi->flags & GSF_PRINT_FILES))) { - uint64_t files; - ret = osl(osl_get_object(dir_table, row, DT_FILES, &obj)); - if (ret < 0) - goto err; - files = *(uint64_t *)obj.data; - if (gsi->count && (gsi->flags & GSF_PRINT_FILES)) { - format_count_value(conf.count_unit_arg, files, - conf.count_unit_arg == count_unit_arg_h, - formated_value); - printf("\t%s%s", formated_value, - (gsi->flags & (GSF_PRINT_BYTES | GSF_PRINT_DIRNAME))? - "\t" : "\n"); - } - if (summary) - num_files += files; - } - if (summary || (gsi->count && (gsi->flags & GSF_PRINT_BYTES))) { - uint64_t bytes; - ret = osl(osl_get_object(dir_table, row, DT_BYTES, &obj)); - if (ret < 0) - goto err; - bytes = *(uint64_t *)obj.data; - if (gsi->count && (gsi->flags & GSF_PRINT_BYTES)) { - format_size_value(conf.size_unit_arg, bytes, - conf.size_unit_arg == size_unit_arg_h, - formated_value); - printf("%s%s%s", - (gsi->flags & GSF_PRINT_FILES)? "" : "\t", - formated_value, - (gsi->flags & GSF_PRINT_DIRNAME)? "\t" : "\n" - ); - } - if (summary) { - num_bytes += bytes; - num_dirs++; - } - } - if (gsi->count && (gsi->flags & GSF_PRINT_DIRNAME)) { - ret = get_dir_name_of_row(row, &dirname); - if (ret < 0) - goto err; - printf("%s%s\n", - (gsi->flags & (GSF_PRINT_BYTES | GSF_PRINT_FILES))? "" : "\t", - dirname); - } - if (gsi->count > 0) - gsi->count--; - return 1; -err: - gsi->ret = ret; - gsi->osl_errno = (ret == -E_OSL)? osl_errno : 0; - return -1; -} - -static void print_id_stats(void) -{ - struct user_info *ui; - - printf("User summary " - "(uid/dirs%s/files%s/size%s):\n", - count_unit_buf, count_unit_buf, size_unit_buf); - FOR_EACH_USER(ui) { - char formated_dir_count[FORMATED_VALUE_SIZE], - formated_file_count[FORMATED_VALUE_SIZE], - formated_bytes[FORMATED_VALUE_SIZE ]; - if (!ui_used(ui) || !ui_admissible(ui)) - continue; - format_count_value(conf.count_unit_arg, ui->dirs, - conf.count_unit_arg == count_unit_arg_h, - formated_dir_count); - format_count_value(conf.count_unit_arg, ui->files, - conf.count_unit_arg == count_unit_arg_h, - formated_file_count); - format_size_value(conf.size_unit_arg, ui->bytes, - conf.size_unit_arg == size_unit_arg_h, - formated_bytes); - printf("\t%u\t%s\t%s\t%s\n", (unsigned)ui->uid, - formated_dir_count, - formated_file_count, - formated_bytes - ); - } -} - -enum user_stats_flags { - USF_PRINT_DIRNAME = 1, - USF_PRINT_BYTES = 2, - USF_PRINT_FILES = 4, - USF_COMPUTE_SUMMARY = 8, -}; - -struct user_stats_info { - uint32_t count; - enum user_stats_flags flags; - int ret; - int osl_errno; - struct user_info *ui; -}; - -static int user_stats_loop_function(struct osl_row *row, void *data) -{ - struct user_stats_info *usi = data; - struct osl_object obj; - int ret, summary = usi->flags & GSF_COMPUTE_SUMMARY; - char formated_value[FORMATED_VALUE_SIZE]; - - if (!usi->count && !summary) { - ret = -E_LOOP_COMPLETE; - goto err; - } - if (summary || (usi->count && (usi->flags & USF_PRINT_FILES))) { - uint64_t files; - ret = osl(osl_get_object(usi->ui->table, row, UT_FILES, &obj)); - if (ret < 0) - goto err; - files = *(uint64_t *)obj.data; - if (usi->count && (usi->flags & USF_PRINT_FILES)) { - format_count_value(conf.count_unit_arg, files, - conf.count_unit_arg == count_unit_arg_h, - formated_value); - printf("\t%s%s", formated_value, - (usi->flags & (USF_PRINT_BYTES | USF_PRINT_DIRNAME))? - "\t" : "\n" - ); - } - if (summary) - usi->ui->files += files; - } - if (summary || (usi->count && (usi->flags & USF_PRINT_BYTES))) { - uint64_t bytes; - ret = osl(osl_get_object(usi->ui->table, row, UT_BYTES, &obj)); - if (ret < 0) - goto err; - bytes = *(uint64_t *)obj.data; - if (usi->count && (usi->flags & USF_PRINT_BYTES)) { - format_size_value(conf.size_unit_arg, bytes, - conf.size_unit_arg == size_unit_arg_h, - formated_value); - printf("%s%s%s", - (usi->flags & USF_PRINT_FILES)? "" : "\t", - formated_value, - usi->flags & USF_PRINT_DIRNAME? "\t" : "\n" - ); - } - if (summary) { - usi->ui->bytes += bytes; - usi->ui->dirs++; - } - - } - if (usi->count && (usi->flags & USF_PRINT_DIRNAME)) { - char *dirname; - ret = osl(osl_get_object(usi->ui->table, row, UT_DIR_NUM, &obj)); - if (ret < 0) - goto err; - ret = get_dir_name_by_number((uint64_t *)obj.data, &dirname); - if (ret < 0) - goto err; - printf("%s%s\n", - (usi->flags & (USF_PRINT_BYTES | USF_PRINT_FILES))? "" : "\t", - dirname); - } - if (usi->count > 0) - usi->count--; - return 1; -err: - usi->ret = ret; - usi->osl_errno = (ret == -E_OSL)? osl_errno : 0; - return -1; -} - -static int check_loop_return(int ret, int loop_ret, int loop_osl_errno) -{ - if (ret >= 0) - return ret; - assert(ret == -E_OSL); - if (osl_errno != E_OSL_LOOP) - /* error not caused by loop function returning negative. */ - return ret; - assert(loop_ret < 0); - if (loop_ret == -E_LOOP_COMPLETE) /* no error */ - return 1; - if (loop_ret == -E_OSL) { /* osl error in loop function */ - assert(loop_osl_errno); - osl_errno = loop_osl_errno; - } - return loop_ret; -} - -static int adu_loop_reverse(struct osl_table *t, unsigned col_num, void *private_data, - osl_rbtree_loop_func *func, int *loop_ret, int *loop_osl_errno) -{ - int ret = osl(osl_rbtree_loop_reverse(t, col_num, private_data, func)); - return check_loop_return(ret, *loop_ret, *loop_osl_errno); -} - -static int print_user_stats(void) -{ - struct user_info *ui; - int ret; - - FOR_EACH_USER(ui) { - struct user_stats_info usi = { - .count = conf.limit_arg, - .ui = ui - }; - if (!ui_used(ui) || !ui_admissible(ui)) - continue; - usi.flags = USF_PRINT_DIRNAME | USF_PRINT_BYTES | USF_COMPUTE_SUMMARY; - printf("uid %u, by size%s:\n", - (unsigned) ui->uid, size_unit_buf); - ret = adu_loop_reverse(ui->table, UT_BYTES, &usi, user_stats_loop_function, - &usi.ret, &usi.osl_errno); - if (ret < 0) - return ret; - printf("\nuid %u, by file count%s:\n", - (unsigned) ui->uid, count_unit_buf); - usi.count = conf.limit_arg, - usi.flags = USF_PRINT_DIRNAME | USF_PRINT_FILES; - ret = adu_loop_reverse(ui->table, UT_FILES, &usi, user_stats_loop_function, - &usi.ret, &usi.osl_errno); - if (ret < 0) - return ret; - printf("\n"); - } - return 1; -} - -static void print_global_summary(void) -{ - char d[FORMATED_VALUE_SIZE], f[FORMATED_VALUE_SIZE], - s[FORMATED_VALUE_SIZE]; - enum enum_count_unit ud, uf; - enum enum_size_unit us; - - ud = format_count_value(conf.count_unit_arg, num_dirs, 0, d); - uf = format_count_value(conf.count_unit_arg, num_files, 0, f); - us = format_size_value(conf.size_unit_arg, num_bytes, 0, s); - - printf("Global summary " - "(dirs(%c)/files(%c)/size(%c))\n" - "\t%s\t%s\t%s\n\n", - count_unit_abbrevs[ud], - count_unit_abbrevs[uf], - size_unit_abbrevs[us], - d, f, s - ); - -} - -static int print_statistics(void) -{ - int ret; - struct global_stats_info gsi = { - .count = conf.limit_arg, - .flags = GSF_PRINT_DIRNAME | GSF_PRINT_BYTES | GSF_COMPUTE_SUMMARY - }; - - printf("By size%s:\n", - size_unit_buf); - ret = adu_loop_reverse(dir_table, DT_BYTES, &gsi, - global_stats_loop_function, &gsi.ret, &gsi.osl_errno); - if (ret < 0) - return ret; - printf("\n"); - - gsi.count = conf.limit_arg; - gsi.flags = GSF_PRINT_DIRNAME | GSF_PRINT_FILES; - printf("By file count%s:\n", - count_unit_buf); - ret = adu_loop_reverse(dir_table, DT_FILES, &gsi, - global_stats_loop_function, &gsi.ret, &gsi.osl_errno); - if (ret < 0) - return ret; - printf("\n"); - print_global_summary(); - print_user_stats(); - print_id_stats(); - return 1; -} - -static char *get_uid_list_name(void) +char *get_uid_list_name(void) { return make_message("%s/uid_list", conf.database_dir_arg); } @@ -1013,7 +610,7 @@ static int write_uid_list(void) if (!num_uids) return 0; - buf = para_malloc(size); + buf = adu_malloc(size); FOR_EACH_USER(ui) { if (!ui_used(ui) || !ui_admissible(ui)) continue; @@ -1021,77 +618,37 @@ static int write_uid_list(void) write_u32(buf + count++ * sizeof(uint32_t), ui->uid); } filename = get_uid_list_name(); - ret = para_write_file(filename, buf, size); + ret = adu_write_file(filename, buf, size); free(filename); free(buf); return ret; } -static int open_dir_table(void) +int open_dir_table(void) { if (!dir_table_desc.dir) /* we did not create the table */ - dir_table_desc.dir = para_strdup(conf.database_dir_arg); + dir_table_desc.dir = adu_strdup(conf.database_dir_arg); return osl(osl_open_table(&dir_table_desc, &dir_table)); } - -static void close_dir_table(void) -{ - int ret; - - if (!dir_table) - return; - ret = osl(osl_close_table(dir_table, OSL_MARK_CLEAN)); - if (ret < 0) - ERROR_LOG("failed to close dir table: %s\n", adu_strerror(-ret)); - free((char *)dir_table_desc.dir); - dir_table = NULL; -} - -static void close_user_table(struct user_info *ui) -{ - int ret; - - if (!ui || !ui_used(ui) || !ui_admissible(ui)) - return; - ret = osl(osl_close_table(ui->table, OSL_MARK_CLEAN)); - if (ret < 0) - ERROR_LOG("failed to close user table %u: %s\n", - (unsigned) ui->uid, adu_strerror(-ret)); - free((char *)ui->desc->name); - ui->desc->name = NULL; - free((char *)ui->desc->dir); - ui->desc->dir = NULL; - free(ui->desc); - ui->desc = NULL; - ui->table = NULL; - ui->flags = 0; -} - -static void close_user_tables(void) -{ - struct user_info *ui; - - FOR_EACH_USER(ui) - close_user_table(ui); -} - -static void close_all_tables(void) -{ - close_dir_table(); - close_user_tables(); - free_hash_table(); -} - static int com_create() { uint64_t zero = 0ULL; - int ret = create_tables(); - + int ret; + struct stat statbuf; + + if (lstat(conf.base_dir_arg, &statbuf) == -1) + return -ERRNO_TO_ERROR(errno); + if (!S_ISDIR(statbuf.st_mode)) + return -ERRNO_TO_ERROR(ENOTDIR); + device_id = statbuf.st_dev; + ret = create_tables(); if (ret < 0) return ret; + check_signals(); ret = open_dir_table(); if (ret < 0) return ret; + check_signals(); ret = scan_dir(conf.base_dir_arg, &zero); if (ret < 0) goto out; @@ -1101,61 +658,6 @@ out: return ret; } -static int read_uid_file(void) -{ - size_t size; - uint32_t n; - char *filename = get_uid_list_name(), *map; - int ret = mmap_full_file(filename, O_RDONLY, (void **)&map, &size, NULL); - - if (ret < 0) { - INFO_LOG("failed to map %s\n", filename); - free(filename); - return ret; - } - num_uids = size / 4; - INFO_LOG("found %u uids in %s\n", (unsigned)num_uids, filename); - free(filename); - /* hash table size should be a power of two and larger than the number of uids */ - uid_hash_table_size = 4; - while (uid_hash_table_size < num_uids) - uid_hash_table_size *= 2; - create_hash_table(); - for (n = 0; n < num_uids; n++) { - uint32_t uid = read_u32(map + n * sizeof(uid)); - ret = search_uid(uid, OPEN_USER_TABLE, NULL); - if (ret < 0) - goto out; - } -out: - para_munmap(map, size); - return ret; -} - -static int com_select(void) -{ - int ret; - - if (conf.count_unit_arg != count_unit_arg_h) - count_unit_buf[1] = count_unit_abbrevs[conf.count_unit_arg]; - else - count_unit_buf[0] = '\0'; - if (conf.size_unit_arg != size_unit_arg_h) - size_unit_buf[1] = size_unit_abbrevs[conf.size_unit_arg]; - else - size_unit_buf[0] = '\0'; - - ret = open_dir_table(); - if (ret < 0) - return ret; - ret = read_uid_file(); - if (ret < 0) - return ret; - ret = print_statistics(); - close_all_tables(); - return ret; -} - static int check_args(void) { int i, ret; @@ -1175,7 +677,7 @@ static int check_args(void) } if (!conf.uid_given) return 0; - admissible_uids = para_malloc(conf.uid_given * sizeof(*admissible_uids)); + admissible_uids = adu_malloc(conf.uid_given * sizeof(*admissible_uids)); for (i = 0; i < conf.uid_given; i++) { ret = parse_uid_range(conf.uid_arg[i], admissible_uids + i); if (ret < 0) @@ -1200,6 +702,9 @@ int main(int argc, char **argv) }; cmdline_parser_ext(argc, argv, &conf, ¶ms); /* aborts on errors */ + ret = init_signals(); + if (ret < 0) + goto out; ret = check_args(); if (ret < 0) goto out;