吶鶴西飛看春秋

#include? < sys / wait.h >
#include? < sys / types.h >
#include? < unistd.h >
#include? < errno.h >
#include? < stdarg.h >
#include? < stdio.h >
#include? < string.h >

int ?startprocess( char * ?path[], char * ?name[], int ?pid[ 3 ]);
int ?watchprocess( int ?ppid);
int ?rebootpocess( char * ?path[], char * ?name[], int ?ppid, int ?num);
int ?main( int ?argc,? char ? * argv[],? char ? * envp[]) {
?
??
?? char * ?path[ 3 ];
???path[ 0 ]? = ? " /home/tony/testmysql/source/mysqlDB/test " ;
???path[ 1 ]? = ? " /home/tony/testmysql/source/mysqlDB/test1 " ;
???path[ 2 ]? = ? " /home/tony/testmysql/source/mysqlDB/test2 " ;
??? char * ?name[ 3 ];
???name[ 0 ] = " test " ;
???name[ 1 ] = " test1 " ;
???name[ 2 ] = " test2 " ;
?
??? int ?pid[ 3 ]; int ?ppid;
???
???
???startprocess(path,name,pid);
??? // printf("%d\n",pid[0]);
???
??? for (;;) {
???? int ?j;
???? for (j = 0 ;j < 3 ;j ++ ) {
????? if (watchprocess(pid[j]) < 0 )
????????rebootpocess(path,name,pid[j],j);
????}
????sleep( 30 );
???}
???
?? // if(watchprocess(3025)<0)
?????? // ?rebootpocess(path,name,5317,2);
?? return ? 0 ;
}
int ?startprocess( char * ?path[], char * ?name[], int ?pid[ 3 ]) {
?
? int ?i = 0 ;
? for (i = 0 ;i < 3 ;i ++ ) {
??? int ?fd;
???fd = fork();
??? if (fd < 0 )
?????? {
??????? return ? - 1 ;?
??????}
?????? if (fd == 0 )
????????? {
??????????execl(path[i],name[i],( char ? * ?) 0 );
??????????exit( 0 );
?????????}
?????? else
??????? {??
????????????pid[i] = fd;
?????????? continue ;
???????}
??} ?
??
??
?? return ? 0 ;
}
int ?watchprocess( int ?ppid) {
?
??printf( " ======watchprocess========\n " );
??printf( " %d\n " ,ppid);
?
?? char * ?filename = ( char ? * )malloc( 100 );
??sprintf(filename, " /proc/%d/status " ,ppid);
??FILE? * ?pFile;
?? char ? * ?line? = ?NULL;
???size_t?len? = ? 0 ;
???ssize_t?read;
???pFile? = ?fopen?(filename, " r " );
??? if ?(pFile == NULL)? {
????printf( " %s\n " ,? " Config?file?is?not?exist!\n " );
???? return ? - 1 ;
???}
??? int ?linenum = 0 ;
??? char ? * ?tmp;
??? // char*?tmp1?=?(char*)malloc(20);
??? while ?((read? = ?getline( & line,? & len,?pFile))? != ? - 1 ? && ?linenum? < ? 3 )? {
???????linenum ++ ;?????
???????strtok(line,? " \t " );
???????tmp? = ?strtok(NULL, " ? " );
??????? if (?linenum? == ? 2 ? && ?((strcmp(tmp, " S " ) == 0 )? || (strcmp(tmp, " R " ) == 0 ))?) {
?????????? // printf("sdfsdlfw2rwW$#@^$%&YERGHFDGDFGERYG\n");
??????????fclose(pFile);
??????????pFile? = ?NULL;
?????????? return ? 0 ;
????????} ?????
???}
???free(filename);
???fclose(pFile);
???pFile? = ?NULL;?
?? return ? - 1 ;
?}
int ?rebootpocess( char * ?path[], char * ?name[], int ?ppid, int ?num) {
?
?printf( " ======rebootpocess========\n " );
?printf( " %d\n " ,num);
? if (kill(ppid,SIGKILL) == 0 )
???? {???
???? int ?fd;???
?????????fd = fork();
??????? if (fd == 0 )
??????????? {?????
????????????execl(path[num],name[num],NULL);
????????????exit( 0 );
??????????????}
??????? else
????????? {
?????? return ? 0 ;
??????}
?????}
??? else
????? {
??????printf( " Kill?the?process?failed! " );
????? return ? - 1 ;?
????}
?
? return ? 0 ;
?}