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>, OpenBeOS 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("%7ld%31s%7ld\n", info->sem ,info->name , info->count); 43 } 44 45 46 static void print_header(team_info *tinfo) 47 { 48 if (tinfo != NULL) 49 printf("TEAM %ld (%s):\n", tinfo->team, tinfo->args ); 50 51 printf(" ID name count\n"); 52 printf("---------------------------------------------\n"); 53 } 54 55 56 static void list_sems(team_info *tinfo) 57 { 58 sem_info info; 59 int32 cookie = 0; 60 61 print_header(tinfo); 62 63 while (get_next_sem_info(tinfo->team, &cookie, &info) == B_OK) 64 print_sem_info(&info); 65 66 printf("\n"); 67 } 68 69 int main(int argc, char **argv) 70 { 71 team_info tinfo; 72 int32 cookie = 0; 73 int32 i; 74 system_info sysinfo; 75 76 // show up some stats first... 77 get_system_info(&sysinfo); 78 printf("sem: total: %5li, used: %5li, left: %5li\n\n", sysinfo.max_sems, sysinfo.used_sems, sysinfo.max_sems - sysinfo.used_sems); 79 80 if (argc == 1) { 81 while (get_next_team_info( &cookie, &tinfo) == B_OK) 82 list_sems(&tinfo); 83 84 return 0; 85 } 86 87 for (i = 1; i < argc; i++) { 88 if (strcmp(argv[i], "--help") == 0 || strcmp(argv[i], "-h") == 0) { 89 fprintf(stderr, "Usage: %s [-s semid] [teamid]\n", argv[0]); 90 fputs(" List the semaphores allocated by the specified\n", 91 stderr); 92 fputs(" team, or all teams if none is specified.\n", 93 stderr); 94 fputs("\n", stderr); 95 fputs(" The -s option displays the sem_info data for a\n", 96 stderr); 97 fputs(" specified semaphore.\n", stderr); 98 return 0; 99 } else if (strcmp(argv[i], "-s") == 0) { 100 if (argc < i + 2) 101 printf("-s used without associated sem id\n"); 102 else { 103 sem_id id = atoi(argv[i + 1]); 104 sem_info info; 105 if (get_sem_info(id, &info) == B_OK) { 106 print_header(NULL); 107 print_sem_info(&info); 108 } else 109 printf("semaphore %ld unknown\n\n", id); 110 111 i++; 112 } 113 } else { 114 team_id team; 115 team = atoi(argv[i]); 116 if (get_team_info(team, &tinfo) == B_OK) 117 list_sems(&tinfo); 118 else 119 printf("team %ld unknown\n\n", team); 120 } 121 } 122 123 return 0; 124 } 125 126