unsigned LocalWriter::beginEnter(const FunctionSig *sig, bool fake) {
//os::log("LocalWriter::beginEnter\n");
mutex.lock();
++acquired;
checkProcessId();
if (!m_file->isOpened()) {
open();
}
// Although thread_num is a void *, we actually use it as a uintptr_t
uintptr_t this_thread_num =
reinterpret_cast<uintptr_t>(static_cast<void *>(thread_num));
if (!this_thread_num) {
this_thread_num = next_thread_num++;
thread_num = reinterpret_cast<void *>(this_thread_num);
}
assert(this_thread_num);
unsigned thread_id = this_thread_num - 1;
unsigned call_no = Writer::beginEnter(sig, thread_id);
if (!fake && os::backtrace_is_needed(sig->name)) {
std::vector<RawStackFrame> backtrace = os::get_backtrace();
beginBacktrace(backtrace.size());
for (unsigned i = 0; i < backtrace.size(); ++i) {
writeStackFrame(&backtrace[i]);
}
endBacktrace();
}
return call_no;
}
unsigned LocalWriter::beginEnter(const FunctionSig *sig, bool fake) {
mutex.lock();
++acquired;
checkProcessId();
if (!m_file) {
open();
}
uintptr_t this_thread_num = thread_num;
if (!this_thread_num) {
this_thread_num = next_thread_num++;
thread_num = this_thread_num;
}
assert(this_thread_num);
unsigned thread_id = this_thread_num - 1;
unsigned call_no = Writer::beginEnter(sig, thread_id);
if (!fake && os::backtrace_is_needed(sig->name)) {
std::vector<RawStackFrame> backtrace = os::get_backtrace();
beginBacktrace(backtrace.size());
for (auto & frame : backtrace) {
writeStackFrame(&frame);
}
endBacktrace();
}
return call_no;
}