libmodprobe: add GetAllDependencies
Add a method to retrieve the dependencies (both hard and soft) of a
module.
Change-Id: Ie44ceb3e36856bb1a3e68c5d3c0d55a38deb0ef9
diff --git a/libmodprobe/include/modprobe/modprobe.h b/libmodprobe/include/modprobe/modprobe.h
index 913a787..0599ec5 100644
--- a/libmodprobe/include/modprobe/modprobe.h
+++ b/libmodprobe/include/modprobe/modprobe.h
@@ -30,6 +30,9 @@
const std::string& parameters = "");
bool Remove(const std::string& module_name);
std::vector<std::string> ListModules(const std::string& pattern);
+ bool GetAllDependencies(const std::string& module, std::vector<std::string>* pre_dependencies,
+ std::vector<std::string>* dependencies,
+ std::vector<std::string>* post_dependencies);
void EnableBlacklist(bool enable);
private:
diff --git a/libmodprobe/libmodprobe.cpp b/libmodprobe/libmodprobe.cpp
index 0106242..3e9001a 100644
--- a/libmodprobe/libmodprobe.cpp
+++ b/libmodprobe/libmodprobe.cpp
@@ -376,3 +376,36 @@
}
return rv;
}
+
+bool Modprobe::GetAllDependencies(const std::string& module,
+ std::vector<std::string>* pre_dependencies,
+ std::vector<std::string>* dependencies,
+ std::vector<std::string>* post_dependencies) {
+ std::string canonical_name = MakeCanonical(module);
+ if (pre_dependencies) {
+ pre_dependencies->clear();
+ for (const auto& [it_module, it_softdep] : module_pre_softdep_) {
+ if (canonical_name == it_module) {
+ pre_dependencies->emplace_back(it_softdep);
+ }
+ }
+ }
+ if (dependencies) {
+ dependencies->clear();
+ auto hard_deps = GetDependencies(canonical_name);
+ if (hard_deps.empty()) {
+ return false;
+ }
+ for (auto dep = hard_deps.rbegin(); dep != hard_deps.rend(); dep++) {
+ dependencies->emplace_back(*dep);
+ }
+ }
+ if (post_dependencies) {
+ for (const auto& [it_module, it_softdep] : module_post_softdep_) {
+ if (canonical_name == it_module) {
+ post_dependencies->emplace_back(it_softdep);
+ }
+ }
+ }
+ return true;
+}