Colin Cross | fc600e4 | 2013-09-06 16:41:40 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include <stdio.h> |
| 18 | #include <stdlib.h> |
| 19 | #include <string.h> |
| 20 | #include <sys/types.h> |
| 21 | |
Adam Lesinski | 481b947 | 2013-09-23 18:42:41 -0700 | [diff] [blame] | 22 | #include <memtrack/memtrack.h> |
Colin Cross | fc600e4 | 2013-09-06 16:41:40 -0700 | [diff] [blame] | 23 | |
| 24 | #include <pagemap/pagemap.h> |
| 25 | |
| 26 | #define DIV_ROUND_UP(x,y) (((x) + (y) - 1) / (y)) |
| 27 | |
| 28 | static int getprocname(pid_t pid, char *buf, int len) { |
| 29 | char *filename; |
| 30 | FILE *f; |
| 31 | int rc = 0; |
| 32 | static const char* unknown_cmdline = "<unknown>"; |
| 33 | |
| 34 | if (len <= 0) { |
| 35 | return -1; |
| 36 | } |
| 37 | |
Elliott Hughes | ccecf14 | 2014-01-16 10:53:11 -0800 | [diff] [blame] | 38 | if (asprintf(&filename, "/proc/%d/cmdline", pid) < 0) { |
Colin Cross | fc600e4 | 2013-09-06 16:41:40 -0700 | [diff] [blame] | 39 | rc = 1; |
| 40 | goto exit; |
| 41 | } |
| 42 | |
| 43 | f = fopen(filename, "r"); |
| 44 | if (f == NULL) { |
| 45 | rc = 2; |
| 46 | goto releasefilename; |
| 47 | } |
| 48 | |
| 49 | if (fgets(buf, len, f) == NULL) { |
| 50 | rc = 3; |
| 51 | goto closefile; |
| 52 | } |
| 53 | |
| 54 | closefile: |
| 55 | (void) fclose(f); |
| 56 | releasefilename: |
| 57 | free(filename); |
| 58 | exit: |
| 59 | if (rc != 0) { |
| 60 | /* |
| 61 | * The process went away before we could read its process name. Try |
| 62 | * to give the user "<unknown>" here, but otherwise they get to look |
| 63 | * at a blank. |
| 64 | */ |
| 65 | if (strlcpy(buf, unknown_cmdline, (size_t)len) >= (size_t)len) { |
| 66 | rc = 4; |
| 67 | } |
| 68 | } |
| 69 | |
| 70 | return rc; |
| 71 | } |
| 72 | |
| 73 | int main(int argc, char *argv[]) |
| 74 | { |
| 75 | int ret; |
| 76 | pm_kernel_t *ker; |
| 77 | size_t num_procs; |
| 78 | pid_t *pids; |
| 79 | struct memtrack_proc *p; |
| 80 | size_t i; |
| 81 | |
| 82 | (void)argc; |
| 83 | (void)argv; |
| 84 | |
| 85 | ret = memtrack_init(); |
| 86 | if (ret < 0) { |
| 87 | fprintf(stderr, "failed to initialize HAL: %s (%d)\n", strerror(-ret), ret); |
| 88 | exit(EXIT_FAILURE); |
| 89 | } |
| 90 | |
| 91 | ret = pm_kernel_create(&ker); |
| 92 | if (ret) { |
| 93 | fprintf(stderr, "Error creating kernel interface -- " |
| 94 | "does this kernel have pagemap?\n"); |
| 95 | exit(EXIT_FAILURE); |
| 96 | } |
| 97 | |
| 98 | ret = pm_kernel_pids(ker, &pids, &num_procs); |
| 99 | if (ret) { |
| 100 | fprintf(stderr, "Error listing processes.\n"); |
| 101 | exit(EXIT_FAILURE); |
| 102 | } |
| 103 | |
| 104 | p = memtrack_proc_new(); |
| 105 | if (ret) { |
| 106 | fprintf(stderr, "failed to create memtrack process handle\n"); |
| 107 | exit(EXIT_FAILURE); |
| 108 | } |
| 109 | |
| 110 | for (i = 0; i < num_procs; i++) { |
| 111 | pid_t pid = pids[i]; |
| 112 | char cmdline[256]; |
| 113 | size_t v1; |
| 114 | size_t v2; |
| 115 | size_t v3; |
| 116 | size_t v4; |
| 117 | size_t v5; |
| 118 | size_t v6; |
| 119 | |
| 120 | getprocname(pid, cmdline, (int)sizeof(cmdline)); |
| 121 | |
| 122 | ret = memtrack_proc_get(p, pid); |
| 123 | if (ret) { |
| 124 | fprintf(stderr, "failed to get memory info for pid %d: %s (%d)\n", |
| 125 | pid, strerror(-ret), ret); |
| 126 | continue; |
| 127 | } |
| 128 | |
| 129 | v1 = DIV_ROUND_UP(memtrack_proc_graphics_total(p), 1024); |
| 130 | v2 = DIV_ROUND_UP(memtrack_proc_graphics_pss(p), 1024); |
| 131 | v3 = DIV_ROUND_UP(memtrack_proc_gl_total(p), 1024); |
| 132 | v4 = DIV_ROUND_UP(memtrack_proc_gl_pss(p), 1024); |
| 133 | v5 = DIV_ROUND_UP(memtrack_proc_other_total(p), 1024); |
| 134 | v6 = DIV_ROUND_UP(memtrack_proc_other_pss(p), 1024); |
| 135 | |
| 136 | if (v1 | v2 | v3 | v4 | v5 | v6) { |
| 137 | printf("%5d %6zu %6zu %6zu %6zu %6zu %6zu %s\n", pid, |
| 138 | v1, v2, v3, v4, v5, v6, cmdline); |
| 139 | } |
| 140 | } |
| 141 | |
| 142 | memtrack_proc_destroy(p); |
| 143 | |
| 144 | return 0; |
| 145 | } |