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Diffstat (limited to 'cmds/statsd/src/external/Perfetto.cpp')
-rw-r--r--cmds/statsd/src/external/Perfetto.cpp139
1 files changed, 0 insertions, 139 deletions
diff --git a/cmds/statsd/src/external/Perfetto.cpp b/cmds/statsd/src/external/Perfetto.cpp
deleted file mode 100644
index 85b660efc956..000000000000
--- a/cmds/statsd/src/external/Perfetto.cpp
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * Copyright (C) 2018 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.
- */
-
-#define DEBUG false // STOPSHIP if true
-#include "config/ConfigKey.h"
-#include "Log.h"
-
-#include "frameworks/base/cmds/statsd/src/statsd_config.pb.h" // Alert
-
-#include <android-base/unique_fd.h>
-#include <inttypes.h>
-#include <sys/wait.h>
-
-#include <string>
-
-namespace {
-const char kDropboxTag[] = "perfetto";
-}
-
-namespace android {
-namespace os {
-namespace statsd {
-
-bool CollectPerfettoTraceAndUploadToDropbox(const PerfettoDetails& config,
- int64_t subscription_id,
- int64_t alert_id,
- const ConfigKey& configKey) {
- VLOG("Starting trace collection through perfetto");
-
- if (!config.has_trace_config()) {
- ALOGE("The perfetto trace config is empty, aborting");
- return false;
- }
-
- char subscriptionId[25];
- char alertId[25];
- char configId[25];
- char configUid[25];
- snprintf(subscriptionId, sizeof(subscriptionId), "%" PRId64, subscription_id);
- snprintf(alertId, sizeof(alertId), "%" PRId64, alert_id);
- snprintf(configId, sizeof(configId), "%" PRId64, configKey.GetId());
- snprintf(configUid, sizeof(configUid), "%d", configKey.GetUid());
-
- android::base::unique_fd readPipe;
- android::base::unique_fd writePipe;
- if (!android::base::Pipe(&readPipe, &writePipe)) {
- ALOGE("pipe() failed while calling the Perfetto client: %s", strerror(errno));
- return false;
- }
-
- pid_t pid = fork();
- if (pid < 0) {
- ALOGE("fork() failed while calling the Perfetto client: %s", strerror(errno));
- return false;
- }
-
- if (pid == 0) {
- // Child process.
-
- // No malloc calls or library calls after this point. Remember that even
- // ALOGx (aka android_printLog()) can use dynamic memory for vsprintf().
-
- writePipe.reset(); // Close the write end (owned by the main process).
-
- // Replace stdin with |readPipe| so the main process can write into it.
- if (dup2(readPipe.get(), STDIN_FILENO) < 0) _exit(1);
- readPipe.reset();
-
- // Replace stdout/stderr with /dev/null and close any other file
- // descriptor. This is to avoid SELinux complaining about perfetto
- // trying to access files accidentally left open by statsd (i.e. files
- // that have been opened without the O_CLOEXEC flag).
- int devNullFd = open("/dev/null", O_RDWR | O_CLOEXEC);
- if (dup2(devNullFd, STDOUT_FILENO) < 0) _exit(2);
- if (dup2(devNullFd, STDERR_FILENO) < 0) _exit(3);
- close(devNullFd);
- for (int i = 0; i < 1024; i++) {
- if (i != STDIN_FILENO && i != STDOUT_FILENO && i != STDERR_FILENO) close(i);
- }
-
- execl("/system/bin/perfetto", "perfetto", "--background", "--config", "-", "--dropbox",
- kDropboxTag, "--alert-id", alertId, "--config-id", configId, "--config-uid",
- configUid, "--subscription-id", subscriptionId, nullptr);
-
- // execl() doesn't return in case of success, if we get here something
- // failed.
- _exit(4);
- }
-
- // Main process.
-
- readPipe.reset(); // Close the read end (owned by the child process).
-
- // Using fdopen() because fwrite() has the right logic to chunking write()
- // over a pipe (see __sfvwrite()).
- FILE* writePipeStream = android::base::Fdopen(std::move(writePipe), "wb");
- if (!writePipeStream) {
- ALOGE("fdopen() failed while calling the Perfetto client: %s", strerror(errno));
- return false;
- }
-
- const std::string& cfgProto = config.trace_config();
- size_t bytesWritten = fwrite(cfgProto.data(), 1, cfgProto.size(), writePipeStream);
- fclose(writePipeStream);
- if (bytesWritten != cfgProto.size() || cfgProto.size() == 0) {
- ALOGE("fwrite() failed (ret: %zd) while calling the Perfetto client: %s", bytesWritten,
- strerror(errno));
- return false;
- }
-
- // This does NOT wait for the full duration of the trace. It just waits until
- // the process has read the config from stdin and detached.
- int childStatus = 0;
- waitpid(pid, &childStatus, 0);
- if (!WIFEXITED(childStatus) || WEXITSTATUS(childStatus) != 0) {
- ALOGE("Child process failed (0x%x) while calling the Perfetto client", childStatus);
- return false;
- }
-
- VLOG("CollectPerfettoTraceAndUploadToDropbox() succeeded");
- return true;
-}
-
-} // namespace statsd
-} // namespace os
-} // namespace android