From b14a260827a6002969473d8e07370dd79a221ef8 Mon Sep 17 00:00:00 2001
From: topjohnwu <topjohnwu@gmail.com>
Date: Sun, 8 Nov 2020 02:12:35 -0800
Subject: [PATCH] Offset pid_set by 1

PID starts at 1, not 0
---
 native/jni/magiskhide/hide_utils.cpp   |  1 -
 native/jni/magiskhide/proc_monitor.cpp | 11 ++++++++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/native/jni/magiskhide/hide_utils.cpp b/native/jni/magiskhide/hide_utils.cpp
index 76f88c62c..fd8f8d611 100644
--- a/native/jni/magiskhide/hide_utils.cpp
+++ b/native/jni/magiskhide/hide_utils.cpp
@@ -289,5 +289,4 @@ void test_proc_monitor() {
 	if (procfp == nullptr && (procfp = opendir("/proc")) == nullptr)
 		exit(1);
 	proc_monitor();
-	exit(0);
 }
diff --git a/native/jni/magiskhide/proc_monitor.cpp b/native/jni/magiskhide/proc_monitor.cpp
index 0f65a2208..e5914f3fa 100644
--- a/native/jni/magiskhide/proc_monitor.cpp
+++ b/native/jni/magiskhide/proc_monitor.cpp
@@ -35,7 +35,16 @@ static map<int, vector<string_view>> uid_proc_map;  /* uid -> list of process */
 pthread_mutex_t monitor_lock;
 
 #define PID_MAX 32768
-static bitset<PID_MAX> attaches;  /* true if pid is monitored */
+struct pid_set {
+	bitset<PID_MAX>::const_reference operator[](size_t pos) const { return set[pos - 1]; }
+	bitset<PID_MAX>::reference operator[](size_t pos) { return set[pos - 1]; }
+	void reset() { set.reset(); }
+private:
+	bitset<PID_MAX> set;
+};
+
+// true if pid is monitored
+pid_set attaches;
 
 /********
  * Utils