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SysV IPC headers
svn path=/trunk/; revision=2956
This commit is contained in:
KJK::Hyperion
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9523648137
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/* $Id: ipc.h,v 1.2 2002/02/20 09:17:56 hyperion Exp $
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/* $Id: ipc.h,v 1.3 2002/05/17 01:37:15 hyperion Exp $
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*/
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/*
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* sys/ipc.h
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/* OBJECTS */
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/* TYPES */
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struct ipc_perm
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{
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uid_t uid; /* owner's user ID */
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gid_t gid; /* owner's group ID */
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uid_t cuid; /* creator's user ID */
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gid_t cgid; /* creator's group ID */
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mode_t mode; /* read/write permission */
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};
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/* CONSTANTS */
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/* Mode bits */
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#define IPC_CREAT (0x00000200) /* Create entry if key does not exist */
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#define IPC_EXCL (0x00000400) /* Fail if key exists */
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#define IPC_NOWAIT (0x00000800) /* Error if request must wait */
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/* Keys */
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#define IPC_PRIVATE (0xFFFFFFFF) /* Private key */
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/* Control commands */
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#define IPC_RMID (1) /* Remove identifier */
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#define IPC_SET (2) /* Set options */
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#define IPC_STAT (3) /* Get options */
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/* PROTOTYPES */
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key_t ftok(const char *, int);
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/* MACROS */
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/* $Id: msg.h,v 1.2 2002/02/20 09:17:56 hyperion Exp $
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/* $Id: msg.h,v 1.3 2002/05/17 01:37:15 hyperion Exp $
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*/
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/*
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* sys/msg.h
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#define __SYS_SOCKET_H_INCLUDED__
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/* INCLUDES */
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#include <sys/ipc.h>
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/* OBJECTS */
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/* TYPES */
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typedef unsigned int msgqnum_t; /* Used for the number of messages in the message queue */
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typedef unsigned int msglen_t; /* Used for the number of bytes allowed in a message queue */
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struct msqid_ds
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{
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struct ipc_perm msg_perm; /* operation permission structure */
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msgqnum_t msg_qnum; /* number of messages currently on queue */
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msglen_t msg_qbytes; /* maximum number of bytes allowed on queue */
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pid_t msg_lspid; /* process ID of last msgsnd() */
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pid_t msg_lrpid; /* process ID of last msgrcv() */
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time_t msg_stime; /* time of last msgsnd() */
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time_t msg_rtime; /* time of last msgrcv() */
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time_t msg_ctime; /* time of last change */
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};
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/* CONSTANTS */
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/* Message operation flag */
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#define MSG_NOERROR (0x00001000) /* No error if big message */
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/* PROTOTYPES */
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int msgctl(int, int, struct msqid_ds *);
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int msgget(key_t, int);
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ssize_t msgrcv(int, void *, size_t, long int, int);
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int msgsnd(int, const void *, size_t, int);
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/* MACROS */
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/* $Id: resource.h,v 1.2 2002/02/20 09:17:56 hyperion Exp $
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/* $Id: resource.h,v 1.3 2002/05/17 01:37:15 hyperion Exp $
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*/
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/*
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* sys/resource.h
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#define __SYS_RESOURCE_H_INCLUDED__
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/* INCLUDES */
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#include <sys/time.h>
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/* OBJECTS */
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/* TYPES */
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struct rusage
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{
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struct timeval ru_utime; /* user time used */
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struct timeval ru_stime; /* system time used */
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};
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/* CONSTANTS */
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/* $Id: sem.h,v 1.2 2002/02/20 09:17:56 hyperion Exp $
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/* $Id: sem.h,v 1.3 2002/05/17 01:37:15 hyperion Exp $
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*/
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/*
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* sys/sem.h
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#define __SYS_SEM_H_INCLUDED__
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/* INCLUDES */
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#include <sys/ipc.h>
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/* OBJECTS */
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/* TYPES */
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struct semid_ds
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{
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struct ipc_perm sem_perm; /* operation permission structure */
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unsigned short int sem_nsems; /* number of semaphores in set */
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time_t sem_otime; /* last semop time */
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time_t sem_ctime; /* last time changed by semctl() */
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};
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struct sembuf
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{
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unsigned short int sem_num; /* semaphore number */
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short int sem_op; /* semaphore operation */
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short int sem_flg; /* operation flags */
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};
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/* CONSTANTS */
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/* Semaphore operation flags */
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#define SEM_UNDO (0x00001000) /* Set up adjust on exit entry */
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/* Command definitions for the function semctl() */
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#define GETNCNT (1) /* Get semncnt */
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#define GETPID (2) /* Get sempid */
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#define GETVAL (3) /* Get semval */
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#define GETALL (4) /* Get all cases of semval */
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#define GETZCNT (5) /* Get semzcnt */
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#define SETVAL (6) /* Set semval */
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#define SETALL (7) /* Set all cases of semval */
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/* PROTOTYPES */
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int semctl(int, int, int, ...);
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int semget(key_t, int, int);
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int semop(int, struct sembuf *, size_t);
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/* MACROS */
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/* $Id: shm.h,v 1.2 2002/02/20 09:17:56 hyperion Exp $
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/* $Id: shm.h,v 1.3 2002/05/17 01:37:15 hyperion Exp $
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*/
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/*
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* sys/shm.h
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/* OBJECTS */
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/* TYPES */
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typedef unsigned short shmatt_t;
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struct shmid_ds
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{
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struct ipc_perm shm_perm; /* operation permission structure */
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size_t shm_segsz; /* size of segment in bytes */
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pid_t shm_lpid; /* process ID of last shared memory operation */
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pid_t shm_cpid; /* process ID of creator */
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shmatt_t shm_nattch; /* number of current attaches */
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time_t shm_atime; /* time of last shmat() */
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time_t shm_dtime; /* time of last shmdt() */
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time_t shm_ctime; /* time of last change by shmctl() */
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};
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/* CONSTANTS */
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#define SHM_RDONLY (0x00000200) /* Attach read-only (else read-write). */
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#define SHM_RND (0x00000400) /* Round attach address to SHMLBA. */
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#define SHMLBA (4096) /* Segment low boundary address multiple. */
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/* PROTOTYPES */
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void *shmat(int, const void *, int);
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int shmctl(int, int, struct shmid_ds *);
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int shmdt(const void *);
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int shmget(key_t, size_t, int);
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/* MACROS */
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/* $Id: time.h,v 1.2 2002/02/20 09:17:56 hyperion Exp $
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/* $Id: time.h,v 1.3 2002/05/17 01:37:15 hyperion Exp $
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*/
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/*
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* sys/time.h
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/* OBJECTS */
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/* TYPES */
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struct timeval
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{
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time_t tv_sec; /* seconds */
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suseconds_t tv_usec; /* microseconds */
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};
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/* CONSTANTS */
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/* $Id: wait.h,v 1.2 2002/02/20 09:17:56 hyperion Exp $
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/* $Id: wait.h,v 1.3 2002/05/17 01:37:15 hyperion Exp $
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*/
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/*
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* sys/wait.h
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#define __SYS_WAIT_H_INCLUDED__
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/* INCLUDES */
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#include <signal.h>
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#include <sys/resource.h>
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/* OBJECTS */
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/* TYPES */
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typedef enum __tagidtype_t
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{
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P_ALL,
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P_PID,
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P_PGID
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} idtype_t;
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/* CONSTANTS */
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/* Possible values for the options argument to waitid() */
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#define WEXITED (0x00000001) /* Wait for processes that have exited */
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#define WSTOPPED (0x00000002) /* Status will be returned for any child that has stopped upon receipt of a signal */
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#define WNOWAIT (0x00000004) /* Keep the process whose status is returned in infop in a waitable state */
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#define WCONTINUED (0x00000008) /* Status will be returned for any child that was stopped and has been continued */
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#define WNOHANG (0x00000010) /* Return immediately if there are no children to wait for */
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#define WUNTRACED (0x00000020) /* Report status of stopped child process */
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/* PROTOTYPES */
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pid_t wait(int *);
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pid_t wait3(int *, int, struct rusage *);
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int waitid(idtype_t, id_t, siginfo_t *, int);
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pid_t waitpid(pid_t, int *, int);
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/* MACROS */
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/* Macros for analysis of process status values */
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#define WEXITSTATUS(__STATUS__) (1) /* Return exit status */
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#define WIFCONTINUED(__STATUS__) (1) /* True if child has been continued */
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#define WIFEXITED(__STATUS__) (1) /* True if child exited normally */
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#define WIFSIGNALED(__STATUS__) (1) /* True if child exited due to uncaught signal */
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#define WIFSTOPPED(__STATUS__) (1) /* True if child is currently stopped */
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#define WSTOPSIG(__STATUS__) (1) /* Return signal number that caused process to stop */
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#define WTERMSIG(__STATUS__) (1) /* Return signal number that caused process to terminate */
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#endif /* __SYS_WAIT_H_INCLUDED__ */
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