递归地inotify怎么做呢？
我需要在具有多个子文件夹的文件夹上打印事件。如何递归地做到这一点？请打印 C++ 代码。我被困住了！每次弹出 evet 时，我都需要打开子文件夹，获取文件并将其复制到另一个目录中。我不想每 2 秒列出所有子文件夹并查找文件（如果有）。效率不高。我需要使用监视器文件夹。请帮助
我想要监控的导演有多个子文件夹。每个子文件夹都有另一个子文件夹，其中可能包含一个文件。主文件夹->子文件夹->每个子文件夹->子文件夹->文件。
这是我现在的代码：
/*
*/
#include <pthread.h>
#include <unistd.h>
#include <iostream>
#include <sys/inotify.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/inotify.h>
#include <vector>
#include <string>
#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>
using namespace std;
vector<string> SS;
void *print_message_function( void *ptr );
int main(int argc, char **argv ){
pthread_t t1;
int fd,fd1,wd,wd1,i=0,i1=0,len=0,len1=0;
int length;
char pathname[100],buf[1024],buf1[1024];
int data;
struct inotify_event *event;
char *message1 = "Thread 1";
FILE *fr;
// fd=inotify_init1(IN_NONBLOCK);//--rewrite
fd = inotify_init();
/* watch /test directory for any activity and report it back to me */
wd=inotify_add_watch(fd,"/home/MainFoder/",IN_ALL_EVENTS);
// int flag=0;
// char*ev="";
//wd=inotifytools_watch_recursively_with_exclude("/home/MainFolder/",IN_ALL_EVENTS);
while(1)
{
//sleep(30);
//read 1024 bytes of events from fd into buf
i=0;
len=read(fd,buf,1024);
while(i<len){
event=(struct inotify_event *) &buf[i];
/* watch /test directory for any activity and report it back to me */
/* check for changes */
{
if((event->mask & IN_OPEN) ||(event->mask & IN_CREATE))
{
printf("\n %s :was opened\n",event->name);
SS.push_back(event->name);
}
}
/* update index to start of next event */
i+=sizeof(struct inotify_event)+event->len;
}
vector<string>::const_iterator cii;
for(cii=SS.begin(); cii!=SS.end(); cii++)
{
wd1 = watch_from_filename(*ci);
}
/*
vector<string>::const_iterator cii;
for(cii=SS.begin(); cii!=SS.end(); cii++)
{
cout <<"HERE:"<< *cii << endl;
}
*/
int iret1, iret2;
/* Create independent threads each of which will execute function */
iret1 = pthread_create( &t1, NULL, print_message_function, (void*) message1);
}
}
void *print_message_function( void *ptr )
{
vector<string>::const_iterator cii;
for(cii=SS.begin(); cii!=SS.end(); cii++)
{
cout <<"HERE:"<< *cii << endl;
std::string path=exec
}
}
i need to print events on a folder with multiple subfolders. how to do it recursivly? Please print a c++ code. I am stucked!! Every time the evet is poped i need to open the subfolder, take the file and copy it into another directory. I don't want to list all the subfolders in every 2 seconds and find the files if there are any. Is not efficient. I need to use a monitor folder. Please help
The director that i want to monitor has multiple subfolders. Each subfolder has another subfolder that could contain in a moment of time a file. MainFolder->Subfolders->each subfolder-> subfolder -> file.
Here is the code I have for he moment:
/*
*/
#include <pthread.h>
#include <unistd.h>
#include <iostream>
#include <sys/inotify.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/inotify.h>
#include <vector>
#include <string>
#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>
using namespace std;
vector<string> SS;
void *print_message_function( void *ptr );
int main(int argc, char **argv ){
pthread_t t1;
int fd,fd1,wd,wd1,i=0,i1=0,len=0,len1=0;
int length;
char pathname[100],buf[1024],buf1[1024];
int data;
struct inotify_event *event;
char *message1 = "Thread 1";
FILE *fr;
// fd=inotify_init1(IN_NONBLOCK);//--rewrite
fd = inotify_init();
/* watch /test directory for any activity and report it back to me */
wd=inotify_add_watch(fd,"/home/MainFoder/",IN_ALL_EVENTS);
// int flag=0;
// char*ev="";
//wd=inotifytools_watch_recursively_with_exclude("/home/MainFolder/",IN_ALL_EVENTS);
while(1)
{
//sleep(30);
//read 1024 bytes of events from fd into buf
i=0;
len=read(fd,buf,1024);
while(i<len){
event=(struct inotify_event *) &buf[i];
/* watch /test directory for any activity and report it back to me */
/* check for changes */
{
if((event->mask & IN_OPEN) ||(event->mask & IN_CREATE))
{
printf("\n %s :was opened\n",event->name);
SS.push_back(event->name);
}
}
/* update index to start of next event */
i+=sizeof(struct inotify_event)+event->len;
}
vector<string>::const_iterator cii;
for(cii=SS.begin(); cii!=SS.end(); cii++)
{
wd1 = watch_from_filename(*ci);
}
/*
vector<string>::const_iterator cii;
for(cii=SS.begin(); cii!=SS.end(); cii++)
{
cout <<"HERE:"<< *cii << endl;
}
*/
int iret1, iret2;
/* Create independent threads each of which will execute function */
iret1 = pthread_create( &t1, NULL, print_message_function, (void*) message1);
}
}
void *print_message_function( void *ptr )
{
vector<string>::const_iterator cii;
for(cii=SS.begin(); cii!=SS.end(); cii++)
{
cout <<"HERE:"<< *cii << endl;
std::string path=exec
}
}
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评论（5）
Github 上的这个工作示例可以满足您的需求：inotify-example.cpp
On CREATE 事件、当前 wd（监视描述符）以及 inotify_event wd 和名称组件，被添加到 Watch 对象（参见示例）。
该类包含以多种方式查找 wd 和名称的方法。
此代码片段显示了如何处理 CREATE/DELETE 事件：
This working sample on Github does what you're looking for: inotify-example.cpp
On CREATE events, the current wd (watch descriptor), plus the inotify_event wd and name components, are added to a Watch object (see sample).
The class includes methods to lookup wd and names in several ways.
This snippet shows how CREATE/DELETE events are handled:
您可以分两步完成：
IN_CREATE)。You can do it in two steps:
IN_CREATE).我已经为你写了代码。现在，您只需对此代码进行一项更改。只需在主函数中给出目录的路径即可。
I have written the code for you. Now, you have to do only one change in this code. Just give path of your directory in main function.
您可以使用 fanotify API。它允许您监控完整的安装。唯一的缺点是你需要 root。
You might use the fanotify API. It allows you to monitor a complete mount. The only drawback is that you need to be root.
解决 ribram 提出的问题（“洞”:)）。我能想到的一个可能的解决方案是，我们可以结合使用“轮询目录”和“使用 inotify”...即每次检测到目录时（仅限目录，不要对文件执行此操作）：
请注意，要构建“密不透风”的外壳，上述步骤的顺序很重要。您需要先添加观察点而不是扫描...这将保证“扫描”或 inotify 或两者都拾取项目。在这种情况下，您可能还需要了解重复项。即相同的项目可以通过扫描和 inotify 产生
To address the problem stated by ribram (the 'hole':)). one possible solution i can think of is that we can do a combination of 'polling the directory' and 'using inotify'... i.e. Each time a directory is detected (directory only, don't do it for files):
Note that to build an 'air-tight' case, the above steps' order is important. you need to add the watchpoint first than scan ... This will guarantee that an item is picked up by either 'scan' or inotify or both. In that case you may also need to aware of the dups. i.e. the same item can be both yielded by the scan and the inotify