add init.h and init.c; not finished; go home to continue
This commit is contained in:
Iain
parent
5cecf3b5ba
commit
f40406bd0d
13
main.c
13
main.c
@ -13,9 +13,22 @@ int main() {
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//get /data/data/dir
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//get whitelist
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//init Proc_List
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//init Global_Info
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printf("%ld",Proc_List[0].pid);
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init();
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//monitor Global_Info and decicde to kill some process
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rc = pthread_create(&unix_domain_server, NULL, (void *)&server, NULL);
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if (rc != 0) {
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perror("unix_domain_server thread fail");
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}
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//monitor Proc_List
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rc = pthread_create(&unix_domain_server, NULL, (void *)&server, NULL);
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if (rc != 0) {
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perror("unix_domain_server thread fail");
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}
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//server
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rc = pthread_create(&unix_domain_server, NULL, (void *)&server, NULL);
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if (rc != 0) {
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@ -14,57 +14,57 @@
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extern int Proc_List_Free_ID;
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extern int Proc_List_ID;
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extern Proc_Info Proc_List[64]; //max monitor 64 process
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extern Proc_Info Proc_List[PROCESS_NUMBER];
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//update process cpu time and mem info by /proc/PID/stat
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//example: 1 (systemd) S 0 1 1 0 -1 4194560 16465 675919 50 519 44 100 678 258 20 0 1 0 13 44421120 1253 18446744073709551615 94869015482368 94869016924823 140724538057904 0 0 0 671173123 4096 1260 1 0 0 17 0 0 0 14 0 0 94869019025816 94869019170360 94869036843008 140724538064796 140724538064863 140724538064863 140724538064863 0
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/* pid 进程ID 0
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comm task_struct结构体的进程名
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state 进程状态, 此处为S
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ppid 父进程ID （父进程是指通过fork方式，通过clone并非父进程）
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pgrp 进程组ID
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session 进程会话组ID
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tty_nr 当前进程的tty终点设备号
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tpgid 控制进程终端的前台进程号
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flags 进程标识位，定义在include/linux/sched.h中的PF
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minflt 次要缺页中断的次数，即无需从磁盘加载内存页. 比如COW和匿名页
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cminfl 当前进程等待子进程的minflt
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majflt 主要缺页中断的次数，需要从磁盘加载内存页. 比如map文件
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majflt 当前进程等待子进程的majflt
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utime 该进程处于用户态的时间，单位jiffies 13
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stime 该进程处于内核态的时间，单位jiffies 14
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cutime 当前进程等待子进程的utime
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cstime 当前进程等待子进程的utime
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priority 进程优先级, 此次等于10.
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nice nice值，取值范围[19, -20]，此处等于-10
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num_threads 线程个数, 此处等于221
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itrealvalue 该字段已废弃，恒等于0
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starttime 自系统启动后的进程创建时间，单位jiffies
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vsize 进程的虚拟内存大小，单位为bytes 22
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rss 进程独占内存，单位pages，4K 23
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rsslim rss大小上限
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start_code 该任务在虚拟地址空间的代码段的起始地址
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end_code 该任务在虚拟地址空间的代码段的结束地址。
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start_stack 该任务在虚拟地址空间的栈的结束地址。
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kstkesp esp(32 位堆栈指针) 的当前值, 与在进程的内核堆栈页得到的一致。
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kstkeip 指向将要执行的指令的指针, EIP(32 位指令指针)的当前值。
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pendingsig 待处理信号的位图，记录发送给进程的普通信号。
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block_sig 阻塞信号的位图。
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sigign 忽略的信号的位图。
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sigcatch 被俘获的信号的位图。
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wchan 如果该进程是睡眠状态，该值给出调度的调用点。
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nswap 被swapped的页数，当前没用。
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cnswap 所有子进程被swapped 的页数的和，当前没用。
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exit_signal 该进程结束时，向父进程所发送的信号。
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task_cpu 运行在哪个 CPU 上。
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task_rt_priority 实时进程的相对优先级别。
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task_policy 进程的调度策略，0=非实时进程，1=FIFO实时进程；2=RR实时进程
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blio_ticks 等待阻塞IO的时间
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gtime guest time of the task in jiffies
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cgtime guest time of the task children in jiffies
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start_data address above which program data+bss is placed
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end_data address below which program data+bss is placed
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start_brk address above which program heap can be expanded with br
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* comm task_struct结构体的进程名
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* state 进程状态, 此处为S
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* ppid 父进程ID （父进程是指通过fork方式，通过clone并非父进程）
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* pgrp 进程组ID
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* session 进程会话组ID
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* tty_nr 当前进程的tty终点设备号
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* tpgid 控制进程终端的前台进程号
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* flags 进程标识位，定义在include/linux/sched.h中的PF
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* minflt 次要缺页中断的次数，即无需从磁盘加载内存页. 比如COW和匿名页
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* cminfl 当前进程等待子进程的minflt
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* majflt 主要缺页中断的次数，需要从磁盘加载内存页. 比如map文件
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* majflt 当前进程等待子进程的majflt
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* utime 该进程处于用户态的时间，单位jiffies 13
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* stime 该进程处于内核态的时间，单位jiffies 14
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* cutime 当前进程等待子进程的utime
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* cstime 当前进程等待子进程的utime
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* priority 进程优先级, 此次等于10.
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* nice nice值，取值范围[19, -20]，此处等于-10
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* num_threads 线程个数, 此处等于221
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* itrealvalue 该字段已废弃，恒等于0
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* starttime 自系统启动后的进程创建时间，单位jiffies
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* vsize 进程的虚拟内存大小，单位为bytes 22
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* rss 进程独占内存，单位pages，4K 23
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* rsslim rss大小上限
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* start_code 该任务在虚拟地址空间的代码段的起始地址
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* end_code 该任务在虚拟地址空间的代码段的结束地址。
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* start_stack 该任务在虚拟地址空间的栈的结束地址。
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* kstkesp esp(32 位堆栈指针) 的当前值, 与在进程的内核堆栈页得到的一致。
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* kstkeip 指向将要执行的指令的指针, EIP(32 位指令指针)的当前值。
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* pendingsig 待处理信号的位图，记录发送给进程的普通信号。
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* block_sig 阻塞信号的位图。
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* sigign 忽略的信号的位图。
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* sigcatch 被俘获的信号的位图。
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* wchan 如果该进程是睡眠状态，该值给出调度的调用点。
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* nswap 被swapped的页数，当前没用。
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* cnswap 所有子进程被swapped 的页数的和，当前没用。
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* exit_signal 该进程结束时，向父进程所发送的信号。
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* task_cpu 运行在哪个 CPU 上。
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* task_rt_priority 实时进程的相对优先级别。
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* task_policy 进程的调度策略，0=非实时进程，1=FIFO实时进程；2=RR实时进程
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* blio_ticks 等待阻塞IO的时间
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* gtime guest time of the task in jiffies
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* cgtime guest time of the task children in jiffies
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* start_data address above which program data+bss is placed
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* end_data address below which program data+bss is placed
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* start_brk address above which program heap can be expanded with br
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*/
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int updateProcInfo(Proc_Info *proc) {
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char file_path[64] = {0};
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@ -113,7 +113,7 @@ void updateProcList() {
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Proc_Info *proc;
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char file_path[64] = {0};
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while (1) {
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if (Proc_List_ID == 30) {
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if (Proc_List_ID == PROCESS_NUMBER) {
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Proc_List_ID = 0;
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usleep(1000);
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}
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@ -5,6 +5,8 @@
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#ifndef ATOP_MONITORPROCESS_H
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#define ATOP_MONITORPROCESS_H
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#define PROCESS_NUMBER 64 //max monitor 64 process
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//proc/PID/stat
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typedef struct {
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unsigned long utime; //user time
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81
src/init.c
81
src/init.c
@ -3,17 +3,90 @@
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//
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#include "init.h"
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#include "MonitorProcess.h"
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#include <stdio.h>
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#include <dirent.h> // read dir
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#include <regex.h> // regular expression
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#include <string.h>
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int initCPUInfo() {
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/*
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* 结构体dirent的属性d_name里存储了app的名字
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* 由于c语言没有字符串数组，而且不知道师兄想怎么处理app名，所以我直接存储的数组元素类型是dirent*
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* 通过app_list[index]->d_name就可以获取文件名
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*/
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#define AOSP_APP_Path "/data/data"
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#define White_List_Path "atop_whitelist.txt"
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static char Regex_Pattern[2][64] = {{"com.android.*"},
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{"com.google.*"}};
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static regex_t Regex_Compare[2]; //the Regex_Compare array size must equal to Regex_Rule array size
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int filterByRegex(char *buf) {
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// variable declaration for regular expression
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err_code = regexec(®, buf, 0, NULL, 0)
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return 0;
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}
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int initMemInfo() {
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int filterByWhiteList(char *buf) {
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return 0;
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}
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int getAppName() {
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DIR *dir = NULL;
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int app_index = 0;
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struct dirent *read_result;
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struct dirent *app_list[PROCESS_NUMBER];
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if ((dir = opendir(AOSP_APP_Path)) == NULL) {
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printf("open dir failed\n");
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return -1;
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}
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while ((read_result = readdir(dir)) != NULL) {
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// filter, ignore current dir + parent dir
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if (filterByRegex(read_result->d_name) == 0 ||
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filterByWhiteList(read_result->d_name) == 0 ||
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strcmp(read_result->d_name, ".") == 0 ||
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strcmp(read_result->d_name, "..") == 0)
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continue;
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// d_type = 4 means it's a directory
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if (read_result->d_type == 4) {
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app_list[app_index] = read_result;
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app_index++;
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}
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}
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// print apps' names
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printf("we have %d apps\n", app_index);
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for (int i = 0; i < app_index; i++) {
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printf("app %d : %s\n", i, app_list[i]->d_name);
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}
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return 0;
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}
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int init_regex() {
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int rule_num = sizeof(Regex_Pattern);
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if (sizeof(Regex_Compare) != rule_num) {
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return -1;
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}
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int id;
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int err_code;
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int compression_flags = REG_EXTENDED | REG_ICASE;
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for (id = 0; id < rule_num; id++)
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if ((err_code = regcomp(&Regex_Compare[id], Regex_Pattern[id], compression_flags)) != 0) {
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perror("set regular expression failed:\n");
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return -1;
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}
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return 0;
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}
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int init() {
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initCPUInfo();
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initMemInfo();
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if (init_regex() == -1) {
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return -1;
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}
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return 0;
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}
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@ -5,8 +5,6 @@
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#ifndef ATOP_INIT_H
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#define ATOP_INIT_H
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int initCPUInfo();
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int initMemInfo();
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int init();
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64
src/main1.c
64
src/main1.c
@ -1,64 +0,0 @@
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#include <stdio.h>
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#include <dirent.h> // read dir
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#include <regex.h> // regular expression
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#include <string.h>
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/*
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* 结构体dirent的属性d_name里存储了app的名字
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* 由于c语言没有字符串数组，而且不知道师兄想怎么处理app名，所以我直接存储的数组元素类型是dirent*
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* 通过app_list[index]->d_name就可以获取文件名
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*/
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int main() {
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// variable declaration for reading directory
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DIR* dir = NULL;
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int app_max = 50; // c doesn't have dynamic array like "std::vector" in c++, so I set a large size for array
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int app_index = 0;
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struct dirent* read_result;
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struct dirent* app_list[app_max];
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const char* app_path = "/home/wwd/CLionProjects/AndroidTest/data/data"; // test, should be /data/data in android
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// variable declaration for regular expression
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regex_t reg;
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int err_code;
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int compression_flags = REG_EXTENDED | REG_ICASE;
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char err_buff[256];
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char* reg_str = "com.android.*";
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// set regular expression and handle error
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if ((err_code = regcomp(®, reg_str, compression_flags)) != 0){
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printf("set regular expression failed:\n");
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regerror(err_code, ®, err_buff, sizeof(err_buff));
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fprintf(stderr, "%s\n", err_buff);
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return -1;
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}
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// read dir
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if ((dir = opendir(app_path)) == NULL){
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printf("open dir failed\n");
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return -1;
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}
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// get result using loop
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while ((read_result = readdir(dir)) != NULL){
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// filter, ignore current dir + parent dir + com.android.* app
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if (strcmp(read_result->d_name, ".") == 0
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|| strcmp(read_result->d_name, "..") == 0
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|| (err_code = regexec(®, read_result->d_name, 0, NULL, 0)) == 0)
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continue;
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// d_type = 4 means it's a directory
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if (read_result->d_type == 4){
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app_list[app_index] = read_result;
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app_index++;
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}
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}
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// print apps' names
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printf("we have %d apps\n", app_index);
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for (int i = 0; i < app_index; i++){
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printf("app %d : %s\n", i, app_list[i]->d_name);
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}
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regfree(®);
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return 0;
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}
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