Changeset 1986 for trunk/src/emx/include/sys/shm.h

Timestamp:

May 9, 2005, 7:02:45 AM (20 years ago)

Author:

bird

Message:

SysV Shared Memory.

File:

• trunk/src/emx/include/sys/shm.h (modified) (7 diffs, 1 prop)

trunk/src/emx/include/sys/shm.h

@@ -39 +39 @@
 /** @file
  * FreeBSD 5.3
+ * @changed the SHMLBA to 64KB.
  */
 
@@ -48 +49 @@
 #define SHM_RDONLY  010000  /* Attach read-only (else read-write) */
 #define SHM_RND     020000  /* Round attach address to SHMLBA */
-#define SHMLBA      PAGE_SIZE /* Segment low boundary address multiple */
+#define SHMLBA      (0x10000) /* Segment low boundary address multiple */
 
 /* "official" access mode definitions; somewhat braindead since you have
@@ -63 +64 @@
 #define SHM_INFO        14
 
+#ifdef __EMX__
+typedef __uint32_t shmatt_t;
+#endif
+
 struct shmid_ds {
         struct ipc_perm shm_perm;       /* operation permission structure */
+#ifdef __EMX__
+        size_t          shm_segsz;      /* size of segment in bytes */
+#else
         int             shm_segsz;      /* size of segment in bytes */
+#endif
         pid_t           shm_lpid;   /* process ID of last shared memory op */
         pid_t           shm_cpid;       /* process ID of creator */
-        short           shm_nattch;     /* number of current attaches */
+#ifdef __EMX__
+        shmatt_t        shm_nattch;     /* number of current attaches */
+#else
+        short           shm_nattch;     /* number of current attaches */
+#endif
         time_t          shm_atime;      /* time of last shmat() */
         time_t          shm_dtime;      /* time of last shmdt() */
@@ -88 +101 @@
                 shmall;         /* max amount of shared memory (pages) */
 };
+#ifndef __EMX__
 extern struct shminfo   shminfo;
 extern struct shmid_ds  *shmsegs;
+#endif
 
 struct shm_info {
@@ -100 +115 @@
 };
 
+#ifndef __EMX__
 struct thread;
 struct proc;
@@ -106 +122 @@
 void    shmexit(struct vmspace *);
 void    shmfork(struct proc *, struct proc *);
+#endif /* !__EMX__ */
 #else /* !_KERNEL */
 
@@ -116 +133 @@
 
 __BEGIN_DECLS
+#ifndef __EMX__
 int shmsys(int, ...);
+#endif
 void *shmat(int, const void *, int);
 int shmget(key_t, size_t, int);