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init: add log to time spent in waiting for file

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Bug: 64925999
Test: boot and take log
Change-Id: I7d37906708b5a4a195fb1ba1113641656d419e62
This commit is contained in:
Wei Wang 2017-08-22 12:07:37 -07:00
parent 46244a6497
commit 4cea121872
1 changed files with 7 additions and 4 deletions
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11
init/util.cpp
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@ -206,13 +206,16 @@ bool mkdir_recursive(const std::string& path, mode_t mode) {
}
int wait_for_file(const char* filename, std::chrono::nanoseconds timeout) {
boot_clock::time_point timeout_time = boot_clock::now() + timeout;
while (boot_clock::now() < timeout_time) {
android::base::Timer t;
while (t.duration() < timeout) {
struct stat sb;
if (stat(filename, &sb) != -1) return 0;
if (stat(filename, &sb) != -1) {
LOG(INFO) << "wait for '" << filename << "' took " << t;
return 0;
}
std::this_thread::sleep_for(10ms);
}
LOG(WARNING) << "wait for '" << filename << "' timed out and took " << t;
return -1;
}