From 2622ccaafc7e1d1dd6d350c2f623c2ecbd7da610 Mon Sep 17 00:00:00 2001
From: Iain <Iain@example.com>
Date: Thu, 22 Jul 2021 21:48:16 +0800
Subject: [PATCH] can run monitor process 1

---
 CrossCompile.cmake |  5 +++++
 main.c             |  2 +-
 src/ProcessInfo.c  | 28 +++++++++++++++++++++++++---
 src/ProcessInfo.h  |  1 +
 4 files changed, 32 insertions(+), 4 deletions(-)
 create mode 100644 CrossCompile.cmake

diff --git a/CrossCompile.cmake b/CrossCompile.cmake
new file mode 100644
index 0000000..65ccd52
--- /dev/null
+++ b/CrossCompile.cmake
@@ -0,0 +1,5 @@
+set(CMAKE_SYSTEM_NAME Linux)
+set(CMAKE_SYSTEM_PROCESSOR  arm)
+
+#cmake -DCMAKE_TOOLCHAIN_FILE=../CrossCompile.cmake ..
+set(CMAKE_C_COMPILER,"/usr/bin/arm-linux-gnuedbihf-gcc")
\ No newline at end of file
diff --git a/main.c b/main.c
index 07e9edd..fc51c52 100644
--- a/main.c
+++ b/main.c
@@ -24,7 +24,7 @@ int main() {
     while (1) {
         i++;
         printf("\nloop:%d\n", i);
-        usleep(60000000 / UPDATE_FREQUENCY * 0.98);
+        usleep(600000 / UPDATE_FREQUENCY * 0.98);
         //monitor Global_Info and decicde to kill some process
         updateSystemInfo();
         //monitor Proc_List
diff --git a/src/ProcessInfo.c b/src/ProcessInfo.c
index 97d66d9..a888b30 100644
--- a/src/ProcessInfo.c
+++ b/src/ProcessInfo.c
@@ -42,6 +42,8 @@ void freeProcInfoList() {
     return;
 }
 
+//not found,return -1
+//found,return id
 int foundProcNode(unsigned int pid) {
     int i;
     for (i = 0; i < LIMIT_PROCESS_NUMBER; i++) {
@@ -77,11 +79,12 @@ int setFreeProcNode(unsigned int pid) {
     printf("/proc/%d/status:    %s", pid, buf);
 #endif
     sscanf(buf, "Name: %s", PID_name);
+    fclose(fp);
 
     //compare PID name with whitelist
 
     //check PID in ProcList
-    if (foundProcNode(pid) == -1) {
+    if (foundProcNode(pid) != -1) {
         return -1;
     }
 
@@ -91,6 +94,25 @@ int setFreeProcNode(unsigned int pid) {
     //set Proc Info
     Proc_List[i].pid = pid;
     strcpy(Proc_List[i].name, PID_name);
+    return 0;
+}
+
+
+int monitorProcDirChange() {
+    struct dirent **namelist;
+    int n;
+
+    n = scandir("/proc", &namelist, 0, alphasort);
+    if (n < 0)
+        perror("scandir /proc");
+    else {
+        while (n--) {
+            printf("%s\n", namelist[n]->d_name);
+            free(namelist[n]);
+        }
+        free(namelist);
+    }
+    return 0;
 }
 
 //unsigned int *getProcess() {
@@ -209,14 +231,14 @@ int updateProcInfo(Proc_Info *proc) {
 void updateProcList() {
 #if defined(LOG)
     printf("/****** Proc Info ******/\n");
+    monitorProcDirChange();
     int i;
     for (i = 0; i < LIMIT_PROCESS_NUMBER; i++) {
         printf("id=%d,", Proc_List[i].pid);
     }
     printf("\n");
-#endif
     setFreeProcNode(1);
-    setFreeProcNode(101);
+#endif
     char file_path[64] = {0};
     int currentProcNode;
     for (currentProcNode = 0; currentProcNode < LIMIT_PROCESS_NUMBER; currentProcNode++) {
diff --git a/src/ProcessInfo.h b/src/ProcessInfo.h
index 4cb5cdd..cf5bbbc 100644
--- a/src/ProcessInfo.h
+++ b/src/ProcessInfo.h
@@ -30,6 +30,7 @@ typedef struct Proc_Info_ {
 } Proc_Info;
 
 void freeProcInfo(Proc_Info *proc);
+
 void freeProcInfoList();
 
 //kill this process