process: Expose current cpu_set the process is running on

src/partition.cpp

@@ -67,6 +67,7 @@ void Partition::reset(bool move_to_first_proc,
 
     clear_completed_flag();
     cgc.set_cpus(cpus);
+    current_cpus = cpus;
     _completed_cb = process_completion_cb;
     // for BE partition, we don't want to reset to first process
     if (move_to_first_proc) {

src/partition.hpp

@@ -53,6 +53,8 @@ class Partition
     // Note: `processes` MUST be located after all cgroups (cgc, cgf, cge) - Process destructors
     //  must run before the cgroup destructors to cleanup child cgroups in correct order
     Processes processes{};
+    /** Current cpu_set the partition is running under. */
+    cpu_set current_cpus{};
 
 public:
     Partition(Cgroup &freezer_parent,

src/process.cpp

@@ -26,13 +26,13 @@ Process::Process(ev::loop_ref loop,
                  std::optional<unsigned int> a53_freq,
                  std::optional<unsigned int> a72_freq,
                  bool has_initialization)
-    : a53_freq_i{a53_freq}
-    , a72_freq_i{a72_freq}
-    // budget +- (jitter / 2)
-    , jitter_distribution_ms(-budget_jitter.count() / 2, budget_jitter.count() - budget_jitter.count() / 2)
+    : part(partition)
+    , a53_freq_i{ a53_freq }
+    , a72_freq_i{ a72_freq } // budget +- (jitter / 2)
+    , jitter_distribution_ms(-budget_jitter.count() / 2,
+                             budget_jitter.count() - budget_jitter.count() / 2)
     , loop(loop)
     , efd_continue(CHECK(eventfd(0, EFD_SEMAPHORE)))
-    , part(partition)
     , cge(loop,
           partition.cge,
           name,

src/process.hpp

@@ -78,6 +78,7 @@ class Process
     void mark_completed();
     void mark_uncompleted();
 
+    Partition ∂
     const std::optional<unsigned int> a53_freq_i;
     const std::optional<unsigned int> a72_freq_i;
 
@@ -89,7 +90,6 @@ class Process
     ev::child child_w{ loop };
     int efd_continue; // new period eventfd
 
-    Partition &part;
     CgroupEvents cge;
     CgroupFreezer cgf;