libmemtrack: Remove libpagemap dependency.
While at it convert the old memtrack_test.c to cpp.
Bug: 111694435
Test: memtrack_test
Change-Id: If297d70cf05b330c578dfabc934fc368d362cc70
Signed-off-by: Sandeep Patil <sspatil@google.com>
diff --git a/libmemtrack/memtrack_test.cpp b/libmemtrack/memtrack_test.cpp
new file mode 100644
index 0000000..aeeaf24
--- /dev/null
+++ b/libmemtrack/memtrack_test.cpp
@@ -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;
+}