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首先是 inotify 的
#include <iostream>
#include <sys/inotify.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define EVENT_SIZE ( sizeof (struct inotify_event) )
#define BUF_LEN ( 1024 * ( EVENT_SIZE + 16 ) )
int main(int argc , char *argv[])
{
int fd;
int wd;
char buffer[BUF_LEN];
int nLineCount=1;
char pFileName[] = "abc.txt";
fd = inotify_init();
if ( fd < 0 )
{
perror( "inotify_init" );
}
//wd = inotify_add_watch( fd, "/home/hdc/Project/temp",IN_MODIFY | IN_CREATE | IN_DELETE );
wd = inotify_add_watch( fd, pFileName,IN_MODIFY | IN_DELETE | IN_DELETE_SELF | IN_MOVE_SELF | IN_IGNORED );
while(true)
{
int length, i = 0;
length = read( fd, buffer, BUF_LEN );
if ( length < 0 )
{
perror( "read" );
}
printf( "[%d]\tlength=%d.\n",nLineCount++, length );
while ( i < length )
{
struct inotify_event *event = ( struct inotify_event * ) &buffer[ i ];
printf( "[%d]\tevent->len=%d\n",nLineCount++,event->len );
if ( event->mask & IN_DELETE )
{
if ( event->mask & IN_ISDIR )
{
if ( event->len )
{
printf( "[%d]\tThe directory %s was deleted.\n",nLineCount++, event->name );
}
else
{
printf( "[%d]\tThe directory was deleted.\n",nLineCount++ );
}
}
else
{
if ( event->len )
{
printf( "[%d]\tThe file %s was deleted.\n",nLineCount++, event->name );
}
else
{
printf( "[%d]\tThe file was deleted.\n",nLineCount++ );
}
}
}
else if ( event->mask & IN_MODIFY )
{
if ( event->mask & IN_ISDIR )
{
if ( event->len )
{
printf( "[%d]\tThe directory %s was modified.\n",nLineCount++, event->name );
}
else
{
printf( "[%d]\tThe directory was modified.\n",nLineCount++ );
}
}
else
{
if ( event->len )
{
printf( "[%d]\tThe file %s was modified.\n",nLineCount++, event->name );
}
else
{
printf( "[%d]\tThe file was modified.\n",nLineCount++ );
}
}
}
else if ( event->mask & IN_DELETE_SELF)
{
if ( event->mask & IN_ISDIR )
{
if ( event->len )
{
printf( "[%d]\t%08X.\n",nLineCount++, event->mask );
}
else
{
printf( "[%d]\t%08X.\n",nLineCount++, event->mask );
}
}
else
{
if ( event->len )
{
printf( "[%d]\t%08X.\n",nLineCount++, event->mask );
}
else
{
printf( "[%d]\t%08X.\n",nLineCount++, event->mask );
}
}
}
else if ( event->mask & IN_MOVE_SELF )
{
if ( event->mask & IN_ISDIR )
{
if ( event->len )
{
printf( "[%d]\t%08X.\n",nLineCount++, event->mask );
}
else
{
printf( "[%d]\t%08X.\n",nLineCount++, event->mask );
}
}
else
{
if ( event->len )
{
printf( "[%d]\t%08X.\n",nLineCount++, event->mask );
}
else
{
printf( "[%d]\t%08X.\n",nLineCount++, event->mask );
}
}
}
else if ( event->mask & IN_IGNORED)
{
if ( event->mask & IN_ISDIR )
{
if ( event->len )
{
printf( "[%d]\t%08X.\n",nLineCount++, event->mask );
wd = inotify_add_watch( fd, pFileName,IN_MODIFY | IN_DELETE | IN_DELETE_SELF | IN_MOVE_SELF | IN_IGNORED );
}
else
{
printf( "[%d]\t%08X.\n",nLineCount++, event->mask );
wd = inotify_add_watch( fd, pFileName,IN_MODIFY | IN_DELETE | IN_DELETE_SELF | IN_MOVE_SELF | IN_IGNORED );
}
}
else
{
if ( event->len )
{
printf( "[%d]\t%08X.\n",nLineCount++, event->mask );
wd = inotify_add_watch( fd, pFileName,IN_MODIFY | IN_DELETE | IN_DELETE_SELF | IN_MOVE_SELF | IN_IGNORED );
}
else
{
printf( "[%d]\t%08X.\n",nLineCount++, event->mask );
//int nSleepedCount = sleep(1);
sleep(1);
wd = inotify_add_watch( fd, pFileName,IN_MODIFY | IN_DELETE | IN_DELETE_SELF | IN_MOVE_SELF | IN_IGNORED );
while( wd == -1 )
{
wd = inotify_add_watch( fd, pFileName,IN_MODIFY | IN_DELETE | IN_DELETE_SELF | IN_MOVE_SELF | IN_IGNORED );
}
//if( wd == -1 )
//{
// printf( "[%d]\tignore inotify_add_watch fail.errno=%d,desc=%s.nSleepedCount=%d.\n",nLineCount++, errno, strerror(errno), nSleepedCount );
//}
//else
//{
// printf( "[%d]\tignore inotify_add_watch success.errno=%d,desc=%s.nSleepedCount=%d.\n",nLineCount++, errno, strerror(errno), nSleepedCount );
//}
}
}
}
i += EVENT_SIZE + event->len;
}
}
( void ) inotify_rm_watch( fd, wd );
( void ) close( fd );
return 0;
} |
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