pm_map.c revision e16cb84e2324f05334d18dcf5956f20f44262b62
1e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project/* 2e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project * Copyright (C) 2008 The Android Open Source Project 3e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project * 4e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 5e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project * you may not use this file except in compliance with the License. 6e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project * You may obtain a copy of the License at 7e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project * 8e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 9e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project * 10e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 11e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 12e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project * See the License for the specific language governing permissions and 14e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project * limitations under the License. 15e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project */ 16e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 17e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project#include <stdlib.h> 18e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project#include <string.h> 19e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 20e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project#include <pagemap/pagemap.h> 21e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 22e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Projectint pm_map_pagemap(pm_map_t *map, uint64_t **pagemap_out, size_t *len) { 23e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project if (!map) 24e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project return -1; 25e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 26e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project return pm_process_pagemap_range(map->proc, map->start, map->end, 27e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project pagemap_out, len); 28e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project} 29e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 30e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Projectint pm_map_usage(pm_map_t *map, pm_memusage_t *usage_out) { 31e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project uint64_t *pagemap; 32e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project size_t len, i; 33e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project uint64_t count; 34e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project pm_memusage_t usage; 35e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project int error; 36e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 37e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project if (!map || !usage_out) 38e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project return -1; 39e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 40e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project error = pm_map_pagemap(map, &pagemap, &len); 41e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project if (error) return error; 42e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 43e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project pm_memusage_zero(&usage); 44e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 45e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project for (i = 0; i < len; i++) { 46e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project if (!PM_PAGEMAP_PRESENT(pagemap[i]) || 47e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project PM_PAGEMAP_SWAPPED(pagemap[i])) 48e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project continue; 49e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 50e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project error = pm_kernel_count(map->proc->ker, PM_PAGEMAP_PFN(pagemap[i]), 51e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project &count); 52e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project if (error) goto out; 53e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 54e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project usage.vss += map->proc->ker->pagesize; 55e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project usage.rss += (count >= 1) ? (map->proc->ker->pagesize) : (0); 56e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project usage.pss += (count >= 1) ? (map->proc->ker->pagesize / count) : (0); 57e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project usage.uss += (count == 1) ? (map->proc->ker->pagesize) : (0); 58e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project } 59e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 60e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project memcpy(usage_out, &usage, sizeof(usage)); 61e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 62e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project error = 0; 63e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 64e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Projectout: 65e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project free(pagemap); 66e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 67e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project return error; 68e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project} 69e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 70e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Projectint pm_map_workingset(pm_map_t *map, pm_memusage_t *ws_out) { 71e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project uint64_t *pagemap; 72e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project size_t len, i; 73e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project uint64_t count, flags; 74e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project pm_memusage_t ws; 75e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project int error; 76e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 77e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project if (!map || !ws_out) 78e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project return -1; 79e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 80e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project error = pm_map_pagemap(map, &pagemap, &len); 81e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project if (error) return error; 82e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 83e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project pm_memusage_zero(&ws); 84e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 85e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project for (i = 0; i < len; i++) { 86e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project if (!PM_PAGEMAP_PRESENT(pagemap[i]) || 87e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project PM_PAGEMAP_SWAPPED(pagemap[i])) 88e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project continue; 89e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 90e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project error = pm_kernel_flags(map->proc->ker, PM_PAGEMAP_PFN(pagemap[i]), 91e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project &flags); 92e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project if (error) goto out; 93e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 94e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project if (!(flags & PM_PAGE_REFERENCED)) 95e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project continue; 96e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 97e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project error = pm_kernel_count(map->proc->ker, PM_PAGEMAP_PFN(pagemap[i]), 98e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project &count); 99e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project if (error) goto out; 100e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 101e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project ws.vss += map->proc->ker->pagesize; 102e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project ws.rss += (count >= 1) ? (map->proc->ker->pagesize) : (0); 103e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project ws.pss += (count >= 1) ? (map->proc->ker->pagesize / count) : (0); 104e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project ws.uss += (count == 1) ? (map->proc->ker->pagesize) : (0); 105e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project } 106e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 107e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project memcpy(ws_out, &ws, sizeof(ws)); 108e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 109e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project error = 0; 110e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 111e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Projectout: 112e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project free(pagemap); 113e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 114e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project return 0; 115e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project} 116e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 117e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Projectint pm_map_destroy(pm_map_t *map) { 118e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project if (!map) 119e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project return -1; 120e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 121e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project free(map->name); 122e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project free(map); 123e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project 124e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project return 0; 125e16cb84e2324f05334d18dcf5956f20f44262b62The Android Open Source Project} 126