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Merge "libmemtrack: Remove libpagemap dependency."

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Treehugger Robot 2019-01-22 18:27:01 +00:00 • committed by Gerrit Code Review
commit c8903eebb3
4 changed files with 101 additions and 141 deletions
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1
libmemtrack/.clang-format Symbolic link
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@ -0,0 +1 @@
../.clang-format-4

5
libmemtrack/Android.bp
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@ -28,10 +28,11 @@ cc_library_shared {
cc_binary {
name: "memtrack_test",
srcs: ["memtrack_test.c"],
srcs: ["memtrack_test.cpp"],
static_libs: ["libc++fs"],
shared_libs: [
"libbase",
"libmemtrack",
"libpagemap",
],
cflags: [
"-Wall",

139
libmemtrack/memtrack_test.c
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@ -1,139 +0,0 @@
/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <memtrack/memtrack.h>
#include <pagemap/pagemap.h>
#define DIV_ROUND_UP(x,y) (((x) + (y) - 1) / (y))
static int getprocname(pid_t pid, char *buf, int len) {
char *filename;
FILE *f;
int rc = 0;
static const char* unknown_cmdline = "<unknown>";
if (len <= 0) {
return -1;
}
if (asprintf(&filename, "/proc/%d/cmdline", pid) < 0) {
rc = 1;
goto exit;
}
f = fopen(filename, "r");
if (f == NULL) {
rc = 2;
goto releasefilename;
}
if (fgets(buf, len, f) == NULL) {
rc = 3;
goto closefile;
}
closefile:
(void) fclose(f);
releasefilename:
free(filename);
exit:
if (rc != 0) {
/*
* The process went away before we could read its process name. Try
* to give the user "<unknown>" here, but otherwise they get to look
* at a blank.
*/
if (strlcpy(buf, unknown_cmdline, (size_t)len) >= (size_t)len) {
rc = 4;
}
}
return rc;
}
int main(int argc, char *argv[])
{
int ret;
pm_kernel_t *ker;
size_t num_procs;
pid_t *pids;
struct memtrack_proc *p;
size_t i;
(void)argc;
(void)argv;
ret = pm_kernel_create(&ker);
if (ret) {
fprintf(stderr, "Error creating kernel interface -- "
"does this kernel have pagemap?\n");
exit(EXIT_FAILURE);
}
ret = pm_kernel_pids(ker, &pids, &num_procs);
if (ret) {
fprintf(stderr, "Error listing processes.\n");
exit(EXIT_FAILURE);
}
p = memtrack_proc_new();
if (ret) {
fprintf(stderr, "failed to create memtrack process handle\n");
exit(EXIT_FAILURE);
}
for (i = 0; i < num_procs; i++) {
pid_t pid = pids[i];
char cmdline[256];
size_t v1;
size_t v2;
size_t v3;
size_t v4;
size_t v5;
size_t v6;
getprocname(pid, cmdline, (int)sizeof(cmdline));
ret = memtrack_proc_get(p, pid);
if (ret) {
fprintf(stderr, "failed to get memory info for pid %d: %s (%d)\n",
pid, strerror(-ret), ret);
continue;
}
v1 = DIV_ROUND_UP(memtrack_proc_graphics_total(p), 1024);
v2 = DIV_ROUND_UP(memtrack_proc_graphics_pss(p), 1024);
v3 = DIV_ROUND_UP(memtrack_proc_gl_total(p), 1024);
v4 = DIV_ROUND_UP(memtrack_proc_gl_pss(p), 1024);
v5 = DIV_ROUND_UP(memtrack_proc_other_total(p), 1024);
v6 = DIV_ROUND_UP(memtrack_proc_other_pss(p), 1024);
if (v1 | v2 | v3 | v4 | v5 | v6) {
printf("%5d %6zu %6zu %6zu %6zu %6zu %6zu %s\n", pid,
v1, v2, v3, v4, v5, v6, cmdline);
}
}
memtrack_proc_destroy(p);
return 0;
}

97
libmemtrack/memtrack_test.cpp Normal file
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@ -0,0 +1,97 @@
/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <filesystem>
#include <vector>
#include <android-base/file.h>
#include <android-base/parseint.h>
#include <android-base/stringprintf.h>
#include <memtrack/memtrack.h>
#define DIV_ROUND_UP(x, y) (((x) + (y)-1) / (y))
static void getprocname(pid_t pid, std::string* name) {
std::string fname = ::android::base::StringPrintf("/proc/%d/cmdline", pid);
if (!::android::base::ReadFileToString(fname, name)) {
fprintf(stderr, "Failed to read cmdline from: %s\n", fname.c_str());
*name = "<unknown>";
}
}
int main(int /* argc */, char** /* argv */) {
int ret;
struct memtrack_proc* p;
std::vector<pid_t> pids;
p = memtrack_proc_new();
if (p == nullptr) {
fprintf(stderr, "failed to create memtrack process handle\n");
exit(EXIT_FAILURE);
}
for (auto& de : std::filesystem::directory_iterator("/proc")) {
if (!std::filesystem::is_directory(de.status())) {
continue;
}
pid_t pid;
if (!::android::base::ParseInt(de.path().filename().string(), &pid)) {
continue;
}
pids.emplace_back(pid);
}
for (auto& pid : pids) {
size_t v1;
size_t v2;
size_t v3;
size_t v4;
size_t v5;
size_t v6;
std::string cmdline;
getprocname(pid, &cmdline);
ret = memtrack_proc_get(p, pid);
if (ret) {
fprintf(stderr, "failed to get memory info for pid %d: %s (%d)\n", pid, strerror(-ret),
ret);
continue;
}
v1 = DIV_ROUND_UP(memtrack_proc_graphics_total(p), 1024);
v2 = DIV_ROUND_UP(memtrack_proc_graphics_pss(p), 1024);
v3 = DIV_ROUND_UP(memtrack_proc_gl_total(p), 1024);
v4 = DIV_ROUND_UP(memtrack_proc_gl_pss(p), 1024);
v5 = DIV_ROUND_UP(memtrack_proc_other_total(p), 1024);
v6 = DIV_ROUND_UP(memtrack_proc_other_pss(p), 1024);
if (v1 | v2 | v3 | v4 | v5 | v6) {
fprintf(stdout, "%5d %6zu %6zu %6zu %6zu %6zu %6zu %s\n", pid, v1, v2, v3, v4, v5, v6,
cmdline.c_str());
}
}
memtrack_proc_destroy(p);
return ret;
}