| #include <stdio.h> |
| #include <errno.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/types.h> |
| #include <sys/ipc.h> |
| #include <sys/shm.h> |
| #include "ftp/lynq_ftp.h" |
| |
| int lynq_ftpshm_create( void ) |
| { |
| key_t key; |
| int shm_id; |
| |
| key = ftok(FTPSHMPATH,FTPSHMID); |
| shm_id = shmget(key,sizeof(struct ftp_socket_info),0664 | IPC_CREAT | IPC_EXCL); |
| |
| if(shm_id < 0) |
| { |
| if(errno == EEXIST) |
| shm_id = shmget(key,sizeof(struct ftp_socket_info),0664 | IPC_CREAT ); |
| |
| else |
| { |
| LYDBGLOG("[%s-%d] ftp,shm_create_fail", __FUNCTION__, __LINE__); |
| return -1; |
| } |
| } |
| return shm_id; |
| } |
| |
| lynq_ftp_socker_info *ftpshm_act(int shmid) |
| { |
| lynq_ftp_socker_info *p = NULL; |
| |
| p = shmat(shmid,NULL,0); |
| |
| if(p == NULL) |
| { |
| LYDBGLOG("[%s-%d] ftp,shm_act_fail", __FUNCTION__, __LINE__); |
| return NULL; |
| } |
| |
| return p; |
| } |
| |
| void lynq_ftpshm_deact(lynq_ftp_socker_info *shm) |
| { |
| int ret; |
| |
| ret = shmdt(shm); |
| |
| if(ret < 0) |
| { |
| LYDBGLOG("[%s-%d] ftp,shm_deact_fail", __FUNCTION__, __LINE__); |
| return ; |
| } |
| |
| return; |
| } |
| |
| void lynq_ftpshm_del(int shmid) |
| { |
| int ret; |
| |
| ret = shmctl(shmid, IPC_RMID, 0); |
| |
| if(ret == -1) |
| { |
| LYDBGLOG("[%s-%d] ftp,shm_del_fail", __FUNCTION__, __LINE__); |
| return ; |
| } |
| |
| return; |
| } |