2 * Copyright (C) 2008 Andre Noll <maan@systemlinux.org>
4 * Licensed under the GPL v2. For licencing details see COPYING.
7 /** \file select.c The select mode of adu. */
9 #include <dirent.h> /* readdir() */
11 #include "gcc-compat.h"
16 #include "portable_io.h"
18 /** Global dir count. */
19 static uint64_t num_dirs;
20 /** Global files count. */
21 static uint64_t num_files;
22 /** Global bytes count. */
23 static uint64_t num_bytes;
25 /** The decimal representation of an uint64_t never exceeds that size. */
26 #define FORMATED_VALUE_SIZE 25
28 /* these get filled in by the select command. */
29 static char count_unit_buf[4] = "( )", size_unit_buf[4] = "( )";
31 enum global_stats_flags {
32 GSF_PRINT_DIRNAME = 1,
35 GSF_COMPUTE_SUMMARY = 8,
38 struct global_stats_info {
42 enum global_stats_flags flags;
45 enum user_stats_flags {
46 USF_PRINT_DIRNAME = 1,
49 USF_COMPUTE_SUMMARY = 8,
52 struct user_stats_info {
54 enum user_stats_flags flags;
60 static const uint64_t size_unit_divisors[] = {
61 [size_unit_arg_b] = 1ULL,
62 [size_unit_arg_k] = 1024ULL,
63 [size_unit_arg_m] = 1024ULL * 1024ULL,
64 [size_unit_arg_g] = 1024ULL * 1024ULL * 1024ULL,
65 [size_unit_arg_t] = 1024ULL * 1024ULL * 1024ULL * 1024ULL,
68 static const uint64_t count_unit_divisors[] = {
70 [count_unit_arg_n] = 1ULL,
71 [count_unit_arg_k] = 1000ULL,
72 [count_unit_arg_m] = 1000ULL * 1000ULL,
73 [count_unit_arg_g] = 1000ULL * 1000ULL * 1000ULL,
74 [count_unit_arg_t] = 1000ULL * 1000ULL * 1000ULL * 1000ULL,
77 static const char size_unit_abbrevs[] = " BKMGT";
78 static const char count_unit_abbrevs[] = " kmgt";
80 static enum enum_size_unit format_size_value(enum enum_size_unit unit,
81 uint64_t value, int print_unit, char *result)
83 enum enum_size_unit u = unit;
84 char unit_buf[2] = "\0\0";
86 if (unit == size_unit_arg_h) /* human readable */
87 for (u = size_unit_arg_b; u < size_unit_arg_t &&
88 value > size_unit_divisors[u + 1]; u++)
91 unit_buf[0] = size_unit_abbrevs[u];
92 sprintf(result, "%llu%s",
93 (long long unsigned)value / size_unit_divisors[u], unit_buf);
97 static enum enum_count_unit format_count_value(enum enum_count_unit unit,
98 uint64_t value, int print_unit, char *result)
100 enum enum_count_unit u = unit;
101 char unit_buf[2] = "\0\0";
103 if (unit == count_unit_arg_h) /* human readable */
104 for (u = count_unit_arg_n; u < count_unit_arg_t &&
105 value > count_unit_divisors[u + 1]; u++)
108 unit_buf[0] = count_unit_abbrevs[u];
109 sprintf(result, "%llu%s",
110 (long long unsigned)value / count_unit_divisors[u], unit_buf);
114 static int get_dir_name_by_number(uint64_t *dirnum, char **name)
116 char *result = NULL, *tmp;
118 uint64_t val = *dirnum;
119 struct osl_object obj;
124 obj.size = sizeof(val);
125 ret = osl(osl_get_row(dir_table, DT_NUM, &obj, &row));
128 ret = osl(osl_get_object(dir_table, row, DT_PARENT_NUM, &obj));
131 val = *(uint64_t *)obj.data;
132 ret = osl(osl_get_object(dir_table, row, DT_NAME, &obj));
135 if (val || conf.print_base_dir_given) {
137 tmp = make_message("%s/%s", (char *)obj.data, result);
141 result = adu_strdup((char *)obj.data);
154 static int get_dir_name_of_row(struct osl_row *dir_table_row, char **name)
156 struct osl_object obj;
158 char *this_dir, *prefix = NULL;
161 ret = osl(osl_get_object(dir_table, dir_table_row, DT_NAME, &obj));
164 this_dir = adu_strdup((char *)obj.data);
165 ret = osl(osl_get_object(dir_table, dir_table_row, DT_PARENT_NUM, &obj));
168 if (!*(uint64_t *)obj.data) {
172 ret = get_dir_name_by_number((uint64_t *)obj.data, &prefix);
175 *name = make_message("%s/%s", prefix, this_dir);
182 static int user_stats_loop_function(struct osl_row *row, void *data)
184 struct user_stats_info *usi = data;
185 struct osl_object obj;
186 int ret, summary = usi->flags & GSF_COMPUTE_SUMMARY;
187 char formated_value[FORMATED_VALUE_SIZE];
190 if (!usi->count && !summary) {
191 ret = -E_LOOP_COMPLETE;
194 if (summary || (usi->count && (usi->flags & USF_PRINT_FILES))) {
196 ret = osl(osl_get_object(usi->ui->table, row, UT_FILES, &obj));
199 files = *(uint64_t *)obj.data;
200 if (usi->count && (usi->flags & USF_PRINT_FILES)) {
201 format_count_value(conf.count_unit_arg, files,
202 conf.count_unit_arg == count_unit_arg_h,
204 printf("\t%s%s", formated_value,
205 (usi->flags & (USF_PRINT_BYTES | USF_PRINT_DIRNAME))?
210 usi->ui->files += files;
212 if (summary || (usi->count && (usi->flags & USF_PRINT_BYTES))) {
214 ret = osl(osl_get_object(usi->ui->table, row, UT_BYTES, &obj));
217 bytes = *(uint64_t *)obj.data;
218 if (usi->count && (usi->flags & USF_PRINT_BYTES)) {
219 format_size_value(conf.size_unit_arg, bytes,
220 conf.size_unit_arg == size_unit_arg_h,
223 (usi->flags & USF_PRINT_FILES)? "" : "\t",
225 usi->flags & USF_PRINT_DIRNAME? "\t" : "\n"
229 usi->ui->bytes += bytes;
234 if (usi->count && (usi->flags & USF_PRINT_DIRNAME)) {
236 ret = osl(osl_get_object(usi->ui->table, row, UT_DIR_NUM, &obj));
239 ret = get_dir_name_by_number((uint64_t *)obj.data, &dirname);
243 (usi->flags & (USF_PRINT_BYTES | USF_PRINT_FILES))? "" : "\t",
252 usi->osl_errno = (ret == -E_OSL)? osl_errno : 0;
256 static int global_stats_loop_function(struct osl_row *row, void *data)
258 struct global_stats_info *gsi = data;
259 struct osl_object obj;
260 char *dirname, formated_value[FORMATED_VALUE_SIZE];
261 int ret, summary = gsi->flags & GSF_COMPUTE_SUMMARY;
264 if (!gsi->count && !summary) {
265 ret = -E_LOOP_COMPLETE;
268 if (summary || (gsi->count && (gsi->flags & GSF_PRINT_FILES))) {
270 ret = osl(osl_get_object(dir_table, row, DT_FILES, &obj));
273 files = *(uint64_t *)obj.data;
274 if (gsi->count && (gsi->flags & GSF_PRINT_FILES)) {
275 format_count_value(conf.count_unit_arg, files,
276 conf.count_unit_arg == count_unit_arg_h,
278 printf("\t%s%s", formated_value,
279 (gsi->flags & (GSF_PRINT_BYTES | GSF_PRINT_DIRNAME))?
285 if (summary || (gsi->count && (gsi->flags & GSF_PRINT_BYTES))) {
287 ret = osl(osl_get_object(dir_table, row, DT_BYTES, &obj));
290 bytes = *(uint64_t *)obj.data;
291 if (gsi->count && (gsi->flags & GSF_PRINT_BYTES)) {
292 format_size_value(conf.size_unit_arg, bytes,
293 conf.size_unit_arg == size_unit_arg_h,
296 (gsi->flags & GSF_PRINT_FILES)? "" : "\t",
298 (gsi->flags & GSF_PRINT_DIRNAME)? "\t" : "\n"
306 if (gsi->count && (gsi->flags & GSF_PRINT_DIRNAME)) {
307 ret = get_dir_name_of_row(row, &dirname);
311 (gsi->flags & (GSF_PRINT_BYTES | GSF_PRINT_FILES))? "" : "\t",
320 gsi->osl_errno = (ret == -E_OSL)? osl_errno : 0;
324 static int check_loop_return(int ret, int loop_ret, int loop_osl_errno)
328 assert(ret == -E_OSL);
329 if (osl_errno != E_OSL_LOOP)
330 /* error not caused by loop function returning negative. */
332 assert(loop_ret < 0);
333 if (loop_ret == -E_LOOP_COMPLETE) /* no error */
335 if (loop_ret == -E_OSL) { /* osl error in loop function */
336 assert(loop_osl_errno);
337 osl_errno = loop_osl_errno;
342 static int adu_loop_reverse(struct osl_table *t, unsigned col_num, void *private_data,
343 osl_rbtree_loop_func *func, int *loop_ret, int *loop_osl_errno)
345 int ret = osl(osl_rbtree_loop_reverse(t, col_num, private_data, func));
346 return check_loop_return(ret, *loop_ret, *loop_osl_errno);
349 static void print_global_summary(void)
351 char d[FORMATED_VALUE_SIZE], f[FORMATED_VALUE_SIZE],
352 s[FORMATED_VALUE_SIZE];
353 enum enum_count_unit ud, uf;
354 enum enum_size_unit us;
356 if (conf.no_global_summary_given)
358 ud = format_count_value(conf.count_unit_arg, num_dirs, 0, d);
359 uf = format_count_value(conf.count_unit_arg, num_files, 0, f);
360 us = format_size_value(conf.size_unit_arg, num_bytes, 0, s);
362 if (!conf.no_headers_given)
363 printf("Global summary "
364 "(dirs(%c)/files(%c)/size(%c))\n",
365 count_unit_abbrevs[ud],
366 count_unit_abbrevs[uf],
367 size_unit_abbrevs[us]
369 printf("\t%s\t%s\t%s\n\n", d, f, s);
372 static int print_user_summary_line(struct user_info *ui, __a_unused void *data)
374 char formated_dir_count[FORMATED_VALUE_SIZE],
375 formated_file_count[FORMATED_VALUE_SIZE],
376 formated_bytes[FORMATED_VALUE_SIZE ];
378 format_count_value(conf.count_unit_arg, ui->dirs,
379 conf.count_unit_arg == count_unit_arg_h,
381 format_count_value(conf.count_unit_arg, ui->files,
382 conf.count_unit_arg == count_unit_arg_h,
383 formated_file_count);
384 format_size_value(conf.size_unit_arg, ui->bytes,
385 conf.size_unit_arg == size_unit_arg_h,
387 printf("\t%s\t%u\t%s\t%s\t%s\n",
388 ui->pw_name? ui->pw_name : "?",
397 static int name_comp(const void *a, const void *b)
399 char *x = ((struct user_info *)a)->pw_name;
400 char *y = ((struct user_info *)b)->pw_name;
409 static int uid_comp(const void *a, const void *b)
411 return -NUM_COMPARE(((struct user_info *)a)->uid,
412 ((struct user_info *)b)->uid);
415 static int dir_count_comp(const void *a, const void *b)
417 return NUM_COMPARE(((struct user_info *)a)->dirs,
418 ((struct user_info *)b)->dirs);
421 static int file_count_comp(const void *a, const void *b)
423 return NUM_COMPARE(((struct user_info *)a)->files,
424 ((struct user_info *)b)->files);
427 static int size_comp(const void *a, const void *b)
429 return NUM_COMPARE(((struct user_info *)a)->bytes,
430 ((struct user_info *)b)->bytes);
434 * The comparators for sorting the user summary.
436 * This is an array of pointers to functions taking two constant void *
437 * pointers and returning an int.
439 static int (*summary_comparators[])(const void *, const void *) = {
440 [user_summary_sort_arg_name] = name_comp,
441 [user_summary_sort_arg_uid] = uid_comp,
442 [user_summary_sort_arg_dir_count] = dir_count_comp,
443 [user_summary_sort_arg_file_count] = file_count_comp,
444 [user_summary_sort_arg_size] = size_comp,
447 static void print_user_summary(void)
449 if (conf.no_user_summary_given)
451 if (!conf.no_headers_given)
452 printf("User summary "
453 "(pw_name/uid/dirs%s/files%s/size%s):\n",
454 count_unit_buf, count_unit_buf, size_unit_buf);
455 sort_hash_table(summary_comparators[conf.user_summary_sort_arg]);
456 for_each_admissible_user(print_user_summary_line, NULL);
459 static int print_user_list(struct user_info *ui, __a_unused void *data)
462 struct user_stats_info usi;
463 enum enum_user_list ula = conf.user_list_arg;
464 int print_size_list = (ula == user_list_arg_size
465 || ula == user_list_arg_both);
467 if (print_size_list) {
468 usi.count = conf.limit_arg;
470 usi.flags = USF_PRINT_DIRNAME | USF_PRINT_BYTES | USF_COMPUTE_SUMMARY;
471 if (!conf.no_headers_given)
472 printf("%s (uid %u), by size%s:\n",
473 ui->pw_name? ui->pw_name : "?", (unsigned)ui->uid,
475 ret = adu_loop_reverse(ui->table, UT_BYTES, &usi, user_stats_loop_function,
476 &usi.ret, &usi.osl_errno);
481 if (ula == user_list_arg_file_count || ula == user_list_arg_both) {
482 if (!conf.no_headers_given)
483 printf("%s (uid %u), by file count%s:\n",
484 ui->pw_name? ui->pw_name : "?", (unsigned)ui->uid,
486 usi.count = conf.limit_arg,
488 usi.flags = USF_PRINT_DIRNAME | USF_PRINT_FILES;
489 ret = adu_loop_reverse(ui->table, UT_FILES, &usi, user_stats_loop_function,
490 &usi.ret, &usi.osl_errno);
495 if (ula == user_list_arg_none && !conf.no_user_summary_given) {
496 usi.count = conf.limit_arg;
498 usi.flags = USF_COMPUTE_SUMMARY;
499 ret = adu_loop_reverse(ui->table, UT_FILES, &usi, user_stats_loop_function,
500 &usi.ret, &usi.osl_errno);
507 static int print_user_lists(void)
509 return for_each_admissible_user(print_user_list, NULL);
512 static int print_global_lists(void)
514 struct global_stats_info gsi;
516 enum enum_global_list gla = conf.global_list_arg;
517 int print_size_list = (gla == global_list_arg_size
518 || gla == global_list_arg_both);
520 if (print_size_list) {
521 gsi.count = conf.limit_arg;
522 gsi.flags = GSF_PRINT_DIRNAME | GSF_PRINT_BYTES | GSF_COMPUTE_SUMMARY;
523 if (!conf.no_headers_given)
524 printf("By size%s:\n", size_unit_buf);
525 ret = adu_loop_reverse(dir_table, DT_BYTES, &gsi,
526 global_stats_loop_function, &gsi.ret, &gsi.osl_errno);
531 if (gla == global_list_arg_file_count || gla == global_list_arg_both) {
532 gsi.count = conf.limit_arg;
533 gsi.flags = GSF_PRINT_DIRNAME | GSF_PRINT_FILES;
534 if (!print_size_list)
535 gsi.flags |= GSF_COMPUTE_SUMMARY;
536 if (!conf.no_headers_given)
537 printf("By file count%s:\n", count_unit_buf);
538 ret = adu_loop_reverse(dir_table, DT_FILES, &gsi,
539 global_stats_loop_function, &gsi.ret, &gsi.osl_errno);
544 if (gla == global_list_arg_none && !conf.no_global_summary_given) {
545 /* must compute summary */
546 gsi.count = conf.limit_arg;
547 gsi.flags = GSF_COMPUTE_SUMMARY;
548 ret = adu_loop_reverse(dir_table, DT_FILES, &gsi,
549 global_stats_loop_function, &gsi.ret, &gsi.osl_errno);
556 static int print_statistics(void)
560 ret = print_global_lists();
563 print_global_summary();
565 print_user_summary();
569 static int read_uid_file(void)
573 char *filename = get_uid_list_name(), *map;
574 int ret = mmap_full_file(filename, O_RDONLY, (void **)&map, &size, NULL);
578 INFO_LOG("failed to map %s\n", filename);
583 INFO_LOG("found %u uids in %s\n", (unsigned)num_uids, filename);
586 * Compute number of hash table bits. The hash table size must be a
587 * power of two and larger than the number of uids.
590 while (1 << bits < num_uids)
592 create_hash_table(bits);
593 for (n = 0; n < num_uids; n++) {
594 uint32_t uid = read_u32(map + n * sizeof(uid));
595 ret = search_uid(uid, OPEN_USER_TABLE, NULL);
600 adu_munmap(map, size);
608 if (conf.count_unit_arg != count_unit_arg_h)
609 count_unit_buf[1] = count_unit_abbrevs[conf.count_unit_arg];
611 count_unit_buf[0] = '\0';
612 if (conf.size_unit_arg != size_unit_arg_h)
613 size_unit_buf[1] = size_unit_abbrevs[conf.size_unit_arg];
615 size_unit_buf[0] = '\0';
617 ret = open_dir_table(0);
621 ret = read_uid_file();
625 ret = print_statistics();