Unit* lookupUnit(StringData* path, const char* currentDir, bool* initial_opt) {
bool init;
bool& initial = initial_opt ? *initial_opt : init;
initial = true;
/*
* NB: the m_evaledFiles map is only for the debugger, and could be omitted
* in RepoAuthoritative mode, but currently isn't.
*/
struct stat s;
auto const spath = resolveVmInclude(path, currentDir, &s);
if (spath.isNull()) return nullptr;
auto const eContext = g_context.getNoCheck();
// Check if this file has already been included.
auto it = eContext->m_evaledFiles.find(spath.get());
if (it != end(eContext->m_evaledFiles)) {
initial = false;
return it->second;
}
// This file hasn't been included yet, so we need to parse the file
auto const cunit = checkoutFile(spath.get(), s);
if (cunit.unit && initial_opt) {
// if initial_opt is not set, this shouldn't be recorded as a
// per request fetch of the file.
if (rds::testAndSetBit(cunit.rdsBitId)) {
initial = false;
}
// if parsing was successful, update the mappings for spath and
// rpath (if it exists).
eContext->m_evaledFilesOrder.push_back(cunit.unit->filepath());
eContext->m_evaledFiles[spath.get()] = cunit.unit;
spath.get()->incRefCount();
if (!cunit.unit->filepath()->same(spath.get())) {
eContext->m_evaledFiles[cunit.unit->filepath()] = cunit.unit;
}
if (g_system_profiler) {
g_system_profiler->fileLoadCallBack(path->toCppString());
}
DEBUGGER_ATTACHED_ONLY(phpDebuggerFileLoadHook(cunit.unit));
}
return cunit.unit;
}
Unit* lookupUnit(StringData* path, const char* currentDir, bool* initial_opt) {
bool init;
bool& initial = initial_opt ? *initial_opt : init;
initial = true;
/*
* NB: the m_evaledFiles map is only for the debugger, and could be omitted
* in RepoAuthoritative mode, but currently isn't.
*/
struct stat s;
auto const spath = resolveVmInclude(path, currentDir, &s);
if (spath.isNull()) return nullptr;
auto const eContext = g_context.getNoCheck();
// Check if this file has already been included.
auto it = eContext->m_evaledFiles.find(spath.get());
if (it != end(eContext->m_evaledFiles)) {
initial = false;
return it->second;
}
// We didn't find it, so try the realpath.
auto const alreadyResolved =
RuntimeOption::RepoAuthoritative ||
(!RuntimeOption::CheckSymLink && (spath[0] == '/'));
bool hasRealpath = false;
String rpath;
if (!alreadyResolved) {
std::string rp = StatCache::realpath(spath.data());
if (rp.size() != 0) {
rpath = StringData::Make(rp.data(), rp.size(), CopyString);
if (!rpath.same(spath)) {
hasRealpath = true;
it = eContext->m_evaledFiles.find(rpath.get());
if (it != eContext->m_evaledFiles.end()) {
// We found it! Update the mapping for spath and return the
// unit.
auto const unit = it->second;
spath.get()->incRefCount();
eContext->m_evaledFiles[spath.get()] = unit;
initial = false;
return unit;
}
}
}
}
// This file hasn't been included yet, so we need to parse the file
auto const cunit = checkoutFile(hasRealpath ? rpath.get() : spath.get(), s);
if (cunit.unit && initial_opt) {
// if initial_opt is not set, this shouldn't be recorded as a
// per request fetch of the file.
if (RDS::testAndSetBit(cunit.rdsBitId)) {
initial = false;
}
// if parsing was successful, update the mappings for spath and
// rpath (if it exists).
eContext->m_evaledFilesOrder.push_back(cunit.unit->filepath());
eContext->m_evaledFiles[spath.get()] = cunit.unit;
spath.get()->incRefCount();
if (hasRealpath) {
eContext->m_evaledFiles[rpath.get()] = cunit.unit;
rpath.get()->incRefCount();
}
DEBUGGER_ATTACHED_ONLY(phpDebuggerFileLoadHook(cunit.unit));
}
return cunit.unit;
}