beos fixes from Cyril VELTER
This commit is contained in:
Bruce Momjian
parent
5b0740d3fc
commit
88094f2e2b
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@ -13,160 +13,179 @@
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#include <stdio.h>
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#include <errno.h>
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#include <OS.h>
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#include "utils/elog.h"
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/* Control of a semaphore pool. The pool is an area in which we stored all
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the semIds of the pool. The first 4 bytes are the number of semaphore allocated
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in the pool followed by SemIds */
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// Controle d'un pool de sémaphores
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// On considere que le semId utilisé correspond bien a une area de notre adress space
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// Les informations du pool de sémaphore sont stockés dans cette area
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int semctl(int semId,int semNum,int flag,union semun semun)
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{
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// Recherche de l'adresse de base de l'area
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int32* Address;
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area_info info;
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// printf("semctl : semid %d, semnum %d, cmd %d\n",semId,semNum,flag);
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/* Try to find the pool */
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if (get_area_info(semId,&info)!=B_OK)
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{
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// printf("area not found\n");
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/* pool is invalid (BeOS area id is invalid) */
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errno=EINVAL;
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return -1;
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}
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/* Get the pool address */
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Address=(int32*)info.address;
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// semnum peut etre égal à 0
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// semun.array contient la valeur de départ du sémaphore
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// si flag = set_all il faut définir la valeur du sémaphore sue semun.array
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/* semNum might be 0 */
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/* semun.array contain the sem initial values */
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/* Fix the count of all sem of the pool to semun.array */
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if (flag==SETALL)
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{
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long i;
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// printf("setall %d\n",Address[0]);
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for (i=0;i<Address[0];i++)
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{
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int32 cnt;
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/* Get the current count */
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get_sem_count(Address[i+1],&cnt);
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// printf("Set de ALl %d %d = %d\n",Address[i+1],semun.array[i],cnt);
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/* Compute and set the new count (relative to the old one) */
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cnt-=semun.array[i];
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if (cnt > 0)
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acquire_sem_etc(Address[i+1],cnt,0,0);
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while(acquire_sem_etc(Address[i+1],cnt,0,0)==B_INTERRUPTED);
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if (cnt < 0)
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release_sem_etc(Address[i+1],-cnt,0);
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}
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return 1;
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}
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/* si flag = SET_VAL il faut définir la valeur du sémaphore sur semun.val*/
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/* Fix the count of one semaphore to semun.val */
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if (flag==SETVAL)
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{
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int32 cnt;
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/* Get the current count */
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get_sem_count(Address[semNum+1],&cnt);
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// printf("semctl set val id : %d val : %d = %d\n",semId,semun.val,cnt);
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/* Compute and set the new count (relative to the old one) */
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cnt-=semun.val;
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if (cnt > 0)
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acquire_sem_etc(Address[semNum+1],cnt,0,0);
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while(acquire_sem_etc(Address[semNum+1],cnt,0,0)==B_INTERRUPTED);
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if (cnt < 0)
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release_sem_etc(Address[semNum+1],-cnt,0);
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return 1;
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}
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/* si flag=rm_id il faut supprimer le sémaphore*/
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/* Delete the pool */
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if (flag==IPC_RMID)
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{
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long i;
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// Suppression des sémaphores (ils appartienent au kernel maintenant)
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thread_info ti;
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// printf("remove set\n");
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get_thread_info(find_thread(NULL),&ti);
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/* Loop over all semaphore to delete them */
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for (i=0;i<Address[0];i++)
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{
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/* Don't remember why I do that */
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set_sem_owner(Address[i+1],ti.team);
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/* Delete the semaphore */
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delete_sem(Address[i+1]);
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/* Reset to an invalid semId (in case other process try to get the infos from a cloned area */
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Address[i+1]=0;
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}
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// Il faudrait supprimer en boucle toutes les area portant le même nom
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/* Set the semaphore count to 0 */
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Address[0]=0;
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/* Delete the area (it might be cloned by other process. Let them live with it,
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in all cases semIds are 0 so if another process try to use it, it will fail */
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delete_area(semId);
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return 1;
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}
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/* si flag = GETNCNT il faut renvoyer le semaphore count*/
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/* Get the current semaphore count */
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if (flag==GETNCNT)
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{
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// printf("getncnt : impossible sur BeOS\n");
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return 0; // a faire (peut etre impossible sur Beos)
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/* TO BE IMPLEMENTED */
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elog(ERROR,"beos : semctl error : GETNCNT not implemented");
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return 0;
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}
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/* si flag = GETVAL il faut renvoyer la valeur du sémaphore*/
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/* Get the current semaphore count of the first semaphore in the pool */
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if (flag==GETVAL)
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{
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int32 cnt;
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get_sem_count(Address[semNum+1],&cnt);
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// printf("semctl getval id : %d cnt : %d\n",semId,cnt);
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return cnt;
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}
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// printf("semctl erreur\n");
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elog(ERROR,"beos : semctl error : unknown flag");
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return 0;
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}
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// L'area dans laquelle est stockée le pool est identifiée par son nom (convention à moi : SYSV_IPC_SEM : "semId)
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/* Find a pool id based on IPC key */
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int semget(int semKey, int semNum, int flags)
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{
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char Nom[50];
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area_id parea;
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void* Address;
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// printf("semget get k: %d n: %d fl:%d\n",semKey,semNum,flags);
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// Construction du nom que doit avoir l'area
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/* Name of the area to find */
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sprintf(Nom,"SYSV_IPC_SEM : %d",semKey);
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// Recherche de l'area
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/* find area */
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parea=find_area(Nom);
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// L'area existe
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/* Test of area existance */
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if (parea!=B_NAME_NOT_FOUND)
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{
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// printf("area found\n");
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// On demande une creatrion d'un pool existant : erreur
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/* Area exist and creation is requested, error */
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if ((flags&IPC_CREAT)&&(flags&IPC_EXCL))
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{
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// printf("creat asking exist\n");
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errno=EEXIST;
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return -1;
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}
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// Clone de l'area et renvoi de son ID
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/* Get an area clone (in case it's not in our address space) */
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/* TODO : a check of address space might be done to avoid duplicate areas in the same address space*/
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parea=clone_area(Nom,&Address,B_ANY_ADDRESS,B_READ_AREA | B_WRITE_AREA,parea);
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return parea;
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}
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// L'area n'existe pas
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else
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{
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// printf("set don't exist\n");
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// Demande de creation
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/* Area does not exist, but creation is requested, so create it */
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if (flags&IPC_CREAT)
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{
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int32* Address;
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thread_info ti;
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void* Ad;
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long i;
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// printf("create set\n");
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// On ne peut pas creer plus de 500 semaphores dans un pool (limite tout à fait arbitraire de ma part)
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/* Limit to 500 semaphore in a pool */
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if (semNum>500)
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{
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errno=ENOSPC;
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return -1;
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}
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// Creation de la zone de mémoire partagée
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/* Create the shared memory area which will hold the pool */
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parea=create_area(Nom,&Ad,B_ANY_ADDRESS,4096,B_NO_LOCK,B_READ_AREA | B_WRITE_AREA);
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if ((parea==B_BAD_VALUE)|| (parea==B_NO_MEMORY)||(parea==B_ERROR))
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{
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errno=ENOMEM;
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return -1;
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}
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/* fill up informations (sem number and sem ids) */
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Address=(int32*)Ad;
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Address[0]=semNum;
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for (i=1;i<=Address[0];i++)
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{
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// Creation des sémaphores 1 par 1
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/* Create the semaphores */
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Address[i]=create_sem(0,Nom);
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if ((Address[i]==B_BAD_VALUE)|| (Address[i]==B_NO_MEMORY)||(Address[i]==B_NO_MORE_SEMS))
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@ -176,44 +195,43 @@ int semget(int semKey, int semNum, int flags)
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}
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}
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// printf("returned %d\n",parea);
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return parea;
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}
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// Le pool n'existe pas et pas de demande de création
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else
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{
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// printf("set does not exist no creat requested\n");
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/* Area does not exist and no creation is requested */
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errno=ENOENT;
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return -1;
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}
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}
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}
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// Opération sur le pool de sémaphores
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/* Acquire or release in the semaphore pool */
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int semop(int semId, struct sembuf *sops, int nsops)
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{
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// Recherche de l'adresse du pool
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int32* Address;
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int32* Address; /*Pool address*/
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area_info info;
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long i;
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// printf("semop id : %d n: %d\n",semId,sops->sem_op);
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/* Get the pool address (semId IS an area id) */
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get_area_info(semId,&info);
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Address=(int32*)info.address;
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/* Check the validity of semId (it should be an area id) */
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if ((semId==B_BAD_VALUE)||(semId==B_NO_MEMORY)||(semId==B_ERROR))
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{
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errno=EINVAL;
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return -1;
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}
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// Execution de l'action
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/* Perform acquire or release */
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for(i=0;i<nsops;i++)
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{
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// printf("semid %d, n %d\n",Address[sops[i].sem_num+1],sops[i].sem_op);
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/* For each sem in the pool, check the operation to perform */
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if (sops[i].sem_op < 0)
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{
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acquire_sem_etc(Address[sops[i].sem_num+1],-sops[i].sem_op,0,0);
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/* Try acuiring the semaphore till we are not inteerupted by a signal */
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while (acquire_sem_etc(Address[sops[i].sem_num+1],-sops[i].sem_op,0,0)==B_INTERRUPTED);
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}
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if (sops[i].sem_op > 0)
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{
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@ -12,26 +12,25 @@
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#include <stdio.h>
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#include <OS.h>
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// Detachement d'une zone de mémoire partagée
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// On detruit le clone de l'area dans notre adress-space
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/* Emulating SYS shared memory with beos areas. WARNING : fork clone
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areas in copy on write mode */
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/* Detach from a shared mem area based on its address */
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int shmdt(char* shmaddr)
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{
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// Recherche de l'id de l'area présente à cette adresse
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/* Find area id for this address */
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area_id s;
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s=area_for(shmaddr);
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// printf("detach area %d\n",s);
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// Suppression de l'area
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/* Delete area */
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return delete_area(s);
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}
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// Attachement à une zone de mémoire partagée
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// L'area doit bien partie de notre adress-space et on retourne directement l'adress
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/* Attach to an existing area */
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int* shmat(int memId,int m1,int m2)
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{
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// printf("shmat %d %d %d\n",memId,m1,m2);
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// Lecture de notre team_id
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/* Get our team id */
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thread_info thinfo;
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team_info teinfo;
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area_info ainfo;
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@ -39,74 +38,59 @@ int* shmat(int memId,int m1,int m2)
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get_thread_info(find_thread(NULL),&thinfo);
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get_team_info(thinfo.team,&teinfo);
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// Lecture du teamid de l'area
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/* Get area teamid */
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if (get_area_info(memId,&ainfo)!=B_OK)
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printf("AREA %d Invalide\n",memId);
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if (ainfo.team==teinfo.team)
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{
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//retour de l'adresse
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// printf("attach area %d add %d\n",memId,ainfo.address);
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/* the area is already in our address space, just return the address */
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return (int*)ainfo.address;
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}
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else
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{
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// Clone de l'area
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/* the area is not in our address space, clone it before and return the address */
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area_id narea;
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narea = clone_area(ainfo.name,&(ainfo.address),B_CLONE_ADDRESS,B_READ_AREA | B_WRITE_AREA,memId);
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get_area_info(narea,&ainfo);
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// printf("attach area %d in %d add %d\n",memId,narea,ainfo.address);
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return (int*)ainfo.address;
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}
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}
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// Utilisé uniquement pour supprimer une zone de mémoire partagée
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// On fait la meme chose que le detach mais avec un id direct
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/* Control a shared mem area : Used only to delete it */
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int shmctl(int shmid,int flag, struct shmid_ds* dummy)
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{
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// printf("shmctl %d %d \n",shmid,flag);
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/* Delete the area */
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delete_area(shmid);
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return 0;
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}
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// Recupération d'une area en fonction de sa référence
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// L'area source est identifiée par son nom (convention à moi : SYSV_IPC_SHM : "memId)
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/* Get an area based on the IPC key */
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int shmget(int memKey,int size,int flag)
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{
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int32 n_size;
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char nom[50];
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area_id parea;
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void* Address;
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area_id a;
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n_size=((size/4096)+1)*4096;
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area_id parea;
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// printf("shmget %d %d %d %d\n",memKey,size,flag,nsize);
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// Determination du nom que doit avoir l'area
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/* Area name */
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sprintf(nom,"SYSV_IPC_SHM : %d",memKey);
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// Recherche de cette area
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/* Find area */
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parea=find_area(nom);
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// L'area existe
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/* area exist, just return its id */
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if (parea!=B_NAME_NOT_FOUND)
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{
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// printf("area found\n");
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return parea;
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}
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// L'area n'existe pas et on n'en demande pas la création : erreur
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/* area does not exist and no creation is requested : error */
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if (flag==0)
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{
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// printf("area %s not found\n",nom);
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return -1;
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}
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// L'area n'existe pas mais on demande sa création
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a=create_area(nom,&Address,B_ANY_ADDRESS,n_size,B_NO_LOCK,B_READ_AREA | B_WRITE_AREA);
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// printf("area %s : %d created addresse %d\n",nom,a,Address);
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return a;
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/* area does not exist and its creation is requested, create it (be sure to have a 4ko multiple size */
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return create_area(nom,&Address,B_ANY_ADDRESS,((size/4096)+1)*4096,B_NO_LOCK,B_READ_AREA | B_WRITE_AREA);
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}
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@ -11,47 +11,48 @@
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#include "postgres.h"
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/* Support Globals */
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char* self_binary=NULL;
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port_id beos_dl_port_in=0;
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port_id beos_dl_port_out=0;
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sem_id beos_shm_sem;
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/* Global var containing the postgres path */
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extern char pg_pathname[];
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/* Shared library loading doesn't work after fork in beos. The solution is to use an exact
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copy of the process and use it to perform the loading, then just map the Text and Data segment
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of the add-on in our address space. Both process must have the exact same memory mapping, so
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we use the postgres executable. When it's lauched with the -beossupportserver parameter, the
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postgres executable just run a loop to wait command on a port. Its only action is to load the addon,
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the beos_dl_open will then remap the good areas in the backend address space. */
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image_id beos_dl_open(char * filename)
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{
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image_id im;
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/* Start the support server */
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if (self_binary==NULL)
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/* If a port doesn't exist, lauch support server */
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if ((beos_dl_port_in<=0)||(beos_dl_port_out<=0))
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{
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/* Can't start support server without binary name */
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elog(NOTICE, "Error loading BeOS support server : can't find binary");
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return B_ERROR;
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}
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else
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{
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/* If a port doesn't exist, lauch support server */
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/* Create communication port */
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beos_dl_port_in=create_port(50,"beos_support_in");
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beos_dl_port_out=create_port(50,"beos_support_in");
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if ((beos_dl_port_in<=0)||(beos_dl_port_out<=0))
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{
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/* Create communication port */
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beos_dl_port_in=create_port(50,"beos_support_in");
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beos_dl_port_out=create_port(50,"beos_support_in");
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elog(NOTICE, "Error loading BeOS support server : can't create communication ports");
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return B_ERROR;
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||||
}
|
||||
else
|
||||
{
|
||||
char Cmd[4000];
|
||||
|
||||
/* Build arg list */
|
||||
sprintf(Cmd,"%s -beossupportserver %d %d &",pg_pathname,(int)beos_dl_port_in,(int)beos_dl_port_out);
|
||||
|
||||
|
||||
if ((beos_dl_port_in<=0)||(beos_dl_port_out<=0))
|
||||
{
|
||||
elog(NOTICE, "Error loading BeOS support server : can't create communication ports");
|
||||
return B_ERROR;
|
||||
}
|
||||
else
|
||||
{
|
||||
char Cmd[4000];
|
||||
|
||||
/* Build arg list */
|
||||
sprintf(Cmd,"%s -beossupportserver %d %d &",self_binary,(int)beos_dl_port_in,(int)beos_dl_port_out);
|
||||
|
||||
/* Lauch process */
|
||||
system(Cmd);
|
||||
}
|
||||
/* Lauch process */
|
||||
system(Cmd);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -132,12 +133,14 @@ void beos_startup(int argc,char** argv)
|
|||
{
|
||||
if (strlen(argv[0]) >= 10 && !strcmp(argv[0] + strlen(argv[0]) - 10, "postmaster"))
|
||||
{
|
||||
/* Shared memory cloning protection semaphore */
|
||||
/* We are in the postmaster, create the protection semaphore for shared mem remapping */
|
||||
beos_shm_sem=create_sem(1,"beos_shm_sem");
|
||||
}
|
||||
|
||||
if (argc > 1 && strcmp(argv[1], "-beossupportserver") == 0)
|
||||
{
|
||||
/* We are in the support server, run it ... */
|
||||
|
||||
port_id port_in;
|
||||
port_id port_out;
|
||||
|
||||
|
|
@ -211,48 +214,77 @@ void beos_startup(int argc,char** argv)
|
|||
}
|
||||
|
||||
|
||||
void beos_backend_startup(char * binary)
|
||||
|
||||
/* The behavior of fork is borken on beos regarding shared memory. In fact
|
||||
all shared memory areas are clones in copy on write mode in the new process.
|
||||
|
||||
We need to do a remapping of these areas. Just afer the fork we performe the
|
||||
following actions :
|
||||
|
||||
* Find all areas with a name begining by SYS_V_IPC_ in our process
|
||||
(areas created by the SYSV IPC emulation functions). The name is
|
||||
followed by the IPC KEY in decimal format
|
||||
|
||||
* For each area we do :
|
||||
|
||||
* 1 : Get its name
|
||||
* 2 : destroy it
|
||||
* 3 : find another area with the exact same name
|
||||
* 4 : clone it in our address space with a different name
|
||||
|
||||
There is a race condition in 3-4 : if there two fork in a very short
|
||||
time, in step 3 we might end up with two areas with the same name, and no
|
||||
possibility to find the postmaster one. So the whole process is protected
|
||||
by a semaphore which is acquires just before the fork and released in case
|
||||
of fork failure or just after the end of the remapping.*/
|
||||
|
||||
void beos_before_backend_startup(void)
|
||||
{
|
||||
/* Just before forking, acquire the semaphore */
|
||||
if(acquire_sem(beos_shm_sem)!=B_OK)
|
||||
exit(1); /* Fatal error, exiting with error */
|
||||
}
|
||||
|
||||
void beos_backend_startup_failed(void)
|
||||
{
|
||||
/* The foek failed, just release the semaphore */
|
||||
release_sem(beos_shm_sem);
|
||||
}
|
||||
|
||||
|
||||
void beos_backend_startup(void)
|
||||
{
|
||||
team_id ct;
|
||||
thread_info inft;
|
||||
char nom[50];
|
||||
char nvnom[50];
|
||||
area_info inf;
|
||||
int32 cook=0;
|
||||
|
||||
/* remember full path binary name to load dl*/
|
||||
self_binary=strdup(binary);
|
||||
/* Perform the remapping process */
|
||||
|
||||
/* find the current team */
|
||||
get_thread_info(find_thread(NULL),&inft);
|
||||
ct=inft.team;
|
||||
|
||||
/* find all area with a name begining by pgsql and destroy / clone then */
|
||||
|
||||
/* This operation must be done by only one backend at a time */
|
||||
if(acquire_sem(beos_shm_sem)==B_OK)
|
||||
/* Loop in all our team areas */
|
||||
while (get_next_area_info(0, &cook, &inf) == B_OK)
|
||||
{
|
||||
while (get_next_area_info(0, &cook, &inf) == B_OK)
|
||||
strcpy(nom,inf.name);
|
||||
strcpy(nvnom,inf.name);
|
||||
nom[9]=0;
|
||||
nvnom[5]='i';
|
||||
/* Is it a SYS V area ? */
|
||||
if (!strcmp(nom,"SYSV_IPC_"))
|
||||
{
|
||||
strcpy(nom,inf.name);
|
||||
strcpy(nvnom,inf.name);
|
||||
nom[9]=0;
|
||||
nvnom[5]='i';
|
||||
if (!strcmp(nom,"SYSV_IPC_"))
|
||||
{
|
||||
void* add;
|
||||
area_id ar;
|
||||
add=inf.address;
|
||||
delete_area(inf.area);
|
||||
ar=find_area(inf.name);
|
||||
clone_area(nvnom,&add,B_CLONE_ADDRESS,B_READ_AREA|B_WRITE_AREA,ar);
|
||||
}
|
||||
}
|
||||
release_sem(beos_shm_sem);
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Fatal error, exiting with error */
|
||||
exit(1);
|
||||
}
|
||||
void* area_address;
|
||||
area_id area_postmaster;
|
||||
/* Get the area address */
|
||||
area_address=inf.address;
|
||||
/* Destroy the bad area */
|
||||
delete_area(inf.area);
|
||||
/* Find the postmaster area */
|
||||
area_postmaster=find_area(inf.name);
|
||||
/* Clone it at the exact same address */
|
||||
clone_area(nvnom,&area_address,B_CLONE_ADDRESS,B_READ_AREA|B_WRITE_AREA,area_postmaster);
|
||||
}
|
||||
}
|
||||
|
||||
/* remapping done release semaphore to allow other backend to startup */
|
||||
|
||||
release_sem(beos_shm_sem);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -11,7 +11,7 @@
|
|||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $Header: /cvsroot/pgsql/src/backend/postmaster/postmaster.c,v 1.175 2000/10/25 22:27:25 tgl Exp $
|
||||
* $Header: /cvsroot/pgsql/src/backend/postmaster/postmaster.c,v 1.176 2000/10/28 18:27:55 momjian Exp $
|
||||
*
|
||||
* NOTES
|
||||
*
|
||||
|
|
@ -1719,8 +1719,16 @@ BackendStartup(Port *port)
|
|||
fflush(stdout);
|
||||
fflush(stderr);
|
||||
|
||||
#ifdef __BEOS__
|
||||
/* Specific beos actions before backend startup */
|
||||
beos_before_backend_startup();
|
||||
#endif
|
||||
if ((pid = fork()) == 0)
|
||||
{ /* child */
|
||||
#ifdef __BEOS__
|
||||
/* Specific beos backend stratup actions */
|
||||
beos_backend_startup();
|
||||
#endif
|
||||
if (DoBackend(port))
|
||||
{
|
||||
fprintf(stderr, "%s child[%d]: BackendStartup: backend startup failed\n",
|
||||
|
|
@ -1734,6 +1742,10 @@ BackendStartup(Port *port)
|
|||
/* in parent */
|
||||
if (pid < 0)
|
||||
{
|
||||
#ifdef __BEOS__
|
||||
/* Specific beos backend stratup actions */
|
||||
beos_backend_startup_failed();
|
||||
#endif
|
||||
fprintf(stderr, "%s: BackendStartup: fork failed: %s\n",
|
||||
progname, strerror(errno));
|
||||
return STATUS_ERROR;
|
||||
|
|
|
|||
|
|
@ -8,7 +8,7 @@
|
|||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.183 2000/10/28 01:07:00 petere Exp $
|
||||
* $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.184 2000/10/28 18:27:56 momjian Exp $
|
||||
*
|
||||
* NOTES
|
||||
* this is the "main" module of the postgres backend and
|
||||
|
|
@ -1480,11 +1480,6 @@ PostgresMain(int argc, char *argv[], int real_argc, char *real_argv[], const cha
|
|||
|
||||
if (IsUnderPostmaster)
|
||||
{
|
||||
#ifdef __BEOS__
|
||||
/* Specific beos backend stratup actions */
|
||||
beos_backend_startup(argv[0]);
|
||||
#endif
|
||||
|
||||
/* noninteractive case: nothing should be left after switches */
|
||||
if (errs || argc != optind || DBName == NULL)
|
||||
{
|
||||
|
|
@ -1636,7 +1631,7 @@ PostgresMain(int argc, char *argv[], int real_argc, char *real_argv[], const cha
|
|||
if (!IsUnderPostmaster)
|
||||
{
|
||||
puts("\nPOSTGRES backend interactive interface ");
|
||||
puts("$Revision: 1.183 $ $Date: 2000/10/28 01:07:00 $\n");
|
||||
puts("$Revision: 1.184 $ $Date: 2000/10/28 18:27:56 $\n");
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
|
|||
|
|
@ -1,4 +1,6 @@
|
|||
#include <kernel/OS.h>
|
||||
#include "kernel/image.h"
|
||||
|
||||
#define USE_POSIX_TIME
|
||||
#define HAS_TEST_AND_SET
|
||||
|
||||
|
|
@ -6,68 +8,64 @@ typedef unsigned char slock_t;
|
|||
|
||||
#define AF_UNIX 1 /* no domain sockets on BeOS */
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
#include "kernel/image.h"
|
||||
/* SYS V emulation */
|
||||
|
||||
#undef HAVE_UNION_SEMUN
|
||||
#define HAVE_UNION_SEMUN 1
|
||||
|
||||
#define IPC_RMID 256
|
||||
#define IPC_CREAT 512
|
||||
#define IPC_EXCL 1024
|
||||
#define IPC_PRIVATE 234564
|
||||
|
||||
#define EACCESS 2048
|
||||
#define EIDRM 4096
|
||||
|
||||
#define SETALL 8192
|
||||
#define GETNCNT 16384
|
||||
#define GETVAL 65536
|
||||
#define SETVAL 131072
|
||||
|
||||
union semun
|
||||
{
|
||||
int val;
|
||||
struct semid_ds *buf;
|
||||
unsigned short *array;
|
||||
};
|
||||
|
||||
struct sembuf
|
||||
{
|
||||
int sem_flg;
|
||||
int sem_op;
|
||||
int sem_num;
|
||||
};
|
||||
|
||||
struct shmid_ds
|
||||
{
|
||||
int dummy;
|
||||
};
|
||||
|
||||
#undef HAVE_UNION_SEMUN
|
||||
#define HAVE_UNION_SEMUN 1
|
||||
#undef HAVE_SYS_SEM_H
|
||||
#undef HAVE_SYS_SHM_H
|
||||
int semctl(int semId,int semNum,int flag,union semun);
|
||||
int semget(int semKey, int semNum, int flags);
|
||||
int semop(int semId, struct sembuf *sops, int flag);
|
||||
|
||||
union semun
|
||||
{
|
||||
int val;
|
||||
struct semid_ds *buf;
|
||||
unsigned short *array;
|
||||
};
|
||||
/* SYS V emulation */
|
||||
|
||||
#define IPC_RMID 256
|
||||
#define IPC_CREAT 512
|
||||
#define IPC_EXCL 1024
|
||||
#define IPC_PRIVATE 234564
|
||||
|
||||
#define EACCESS 2048
|
||||
#define EIDRM 4096
|
||||
|
||||
#define SETALL 8192
|
||||
#define GETNCNT 16384
|
||||
#define GETVAL 65536
|
||||
#define SETVAL 131072
|
||||
|
||||
struct sembuf
|
||||
{
|
||||
int sem_flg;
|
||||
int sem_op;
|
||||
int sem_num;
|
||||
};
|
||||
|
||||
int semctl(int semId,int semNum,int flag,union semun);
|
||||
int semget(int semKey, int semNum, int flags);
|
||||
int semop(int semId, struct sembuf *sops, int flag);
|
||||
|
||||
struct shmid_ds
|
||||
{
|
||||
int dummy;
|
||||
};
|
||||
|
||||
int shmdt(char* shmaddr);
|
||||
int* shmat(int memId,int m1,int m2);
|
||||
int shmctl(int shmid,int flag, struct shmid_ds* dummy);
|
||||
int shmget(int memKey,int size,int flag);
|
||||
int shmdt(char* shmaddr);
|
||||
int* shmat(int memId,int m1,int m2);
|
||||
int shmctl(int shmid,int flag, struct shmid_ds* dummy);
|
||||
int shmget(int memKey,int size,int flag);
|
||||
|
||||
|
||||
/* Support functions */
|
||||
/* Specific beos action made on postgres/postmaster startup */
|
||||
void beos_startup(int argc,char** argv);
|
||||
/* Load a shared library */
|
||||
image_id beos_dl_open(char * filename);
|
||||
/* UnLoad a shared library */
|
||||
status_t beos_dl_close(image_id im);
|
||||
/* Specific beos action made on backend startup */
|
||||
void beos_backend_startup(char* binary);
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
/* Support functions */
|
||||
|
||||
/* Specific beos action made on postgres/postmaster startup */
|
||||
void beos_startup(int argc,char** argv);
|
||||
/* Load a shared library */
|
||||
image_id beos_dl_open(char * filename);
|
||||
/* UnLoad a shared library */
|
||||
status_t beos_dl_close(image_id im);
|
||||
/* Specific beos action made on backend startup */
|
||||
void beos_before_backend_startup(void);
|
||||
/* Specific beos action made on backend startup */
|
||||
void beos_backend_startup(void);
|
||||
/* Specific beos action made on backend startup failure*/
|
||||
void beos_backend_startup_failed(void);
|
||||
|
|
|
|||
Loading…
Reference in New Issue