1 /* 2 * listsem.c 3 * 4 * Lists all semaphores in all Teams. 5 * by O.Siebenmarck. 6 * 7 * 04-27-2002 - mmu_man 8 * added command line args 9 * 10 * Legal stuff follows: 11 12 Copyright (c) 2002 Oliver Siebenmarck <olli@ithome.de>, Haiku project 13 14 Permission is hereby granted, free of charge, to any person obtaining a copy of 15 this software and associated documentation files (the "Software"), to deal in 16 the Software without restriction, including without limitation the rights to 17 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 18 of the Software, and to permit persons to whom the Software is furnished to do 19 so, subject to the following conditions: 20 21 The above copyright notice and this permission notice shall be included in all 22 copies or substantial portions of the Software. 23 24 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 25 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 26 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 27 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 28 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 29 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 30 THE SOFTWARE. 31 32 */ 33 34 #include <stdio.h> 35 #include <stdlib.h> 36 #include <string.h> 37 #include <OS.h> 38 39 40 static void print_sem_info(sem_info *info) 41 { 42 printf("%7" B_PRId32 "%31s%7" B_PRId32 "\n", info->sem, info->name, 43 info->count); 44 } 45 46 47 static void print_header(team_info *tinfo) 48 { 49 if (tinfo != NULL) 50 printf("TEAM %" B_PRId32 " (%s):\n", tinfo->team, tinfo->args); 51 52 printf(" ID name count\n"); 53 printf("---------------------------------------------\n"); 54 } 55 56 57 static void list_sems(team_info *tinfo) 58 { 59 sem_info info; 60 int32 cookie = 0; 61 62 print_header(tinfo); 63 64 while (get_next_sem_info(tinfo->team, &cookie, &info) == B_OK) 65 print_sem_info(&info); 66 67 printf("\n"); 68 } 69 70 int main(int argc, char **argv) 71 { 72 team_info tinfo; 73 int32 cookie = 0; 74 int32 i; 75 system_info sysinfo; 76 77 // show up some stats first... 78 get_system_info(&sysinfo); 79 printf("sem: total: %5" B_PRIu32 ", used: %5" B_PRIu32 ", left: %5" B_PRIu32 80 "\n\n", sysinfo.max_sems, sysinfo.used_sems, 81 sysinfo.max_sems - sysinfo.used_sems); 82 83 if (argc == 1) { 84 while (get_next_team_info( &cookie, &tinfo) == B_OK) 85 list_sems(&tinfo); 86 87 return 0; 88 } 89 90 for (i = 1; i < argc; i++) { 91 if (strcmp(argv[i], "--help") == 0 || strcmp(argv[i], "-h") == 0) { 92 fprintf(stderr, "Usage: %s [-s semid] [teamid]\n", argv[0]); 93 fputs(" List the semaphores allocated by the specified\n", 94 stderr); 95 fputs(" team, or all teams if none is specified.\n", 96 stderr); 97 fputs("\n", stderr); 98 fputs(" The -s option displays the sem_info data for a\n", 99 stderr); 100 fputs(" specified semaphore.\n", stderr); 101 return 0; 102 } else if (strcmp(argv[i], "-s") == 0) { 103 if (argc < i + 2) 104 printf("-s used without associated sem id\n"); 105 else { 106 sem_id id = atoi(argv[i + 1]); 107 sem_info info; 108 if (get_sem_info(id, &info) == B_OK) { 109 print_header(NULL); 110 print_sem_info(&info); 111 } else 112 printf("semaphore %" B_PRId32 " unknown\n\n", id); 113 114 i++; 115 } 116 } else { 117 team_id team; 118 team = atoi(argv[i]); 119 if (get_team_info(team, &tinfo) == B_OK) 120 list_sems(&tinfo); 121 else 122 printf("team %" B_PRId32 " unknown\n\n", team); 123 } 124 } 125 126 return 0; 127 } 128 129