(shm_unlink): Export.
* syscalls.cc (shm_open): New function.
(shm_unlink): New function.
* sysconf.cc (sca): Set value of _SC_SHARED_MEMORY_OBJECTS to
_POSIX_SHARED_MEMORY_OBJECTS.
* include/cygwin/version.h: Bump API minor number.
* include/sys/mman.h (shm_open): Add prototype.
(shm_unlink): Ditto.
+2007-02-08 Corinna Vinschen <corinna@vinschen.de>
+
+ * cygwin.din (shm_open): Export.
+ (shm_unlink): Export.
+ * syscalls.cc (shm_open): New function.
+ (shm_unlink): New function.
+ * sysconf.cc (sca): Set value of _SC_SHARED_MEMORY_OBJECTS to
+ _POSIX_SHARED_MEMORY_OBJECTS.
+ * include/cygwin/version.h: Bump API minor number.
+ * include/sys/mman.h (shm_open): Add prototype.
+ (shm_unlink): Ditto.
+
2007-02-08 Christopher Faylor <me@cgf.cx>
Corinna Vinschen <corinna@vinschen.de>
shmctl SIGFE
shmdt SIGFE
shmget SIGFE
+shm_open SIGFE
+shm_unlink SIGFE
shutdown = cygwin_shutdown SIGFE
sigaction SIGFE
sigaddset SIGFE
162: New struct ifreq. Export if_nametoindex, if_indextoname,
if_nameindex, if_freenameindex.
163: Export posix_madvise, posix_memalign.
+ 164: Export shm_open, shm_unlink.
*/
/* Note that we forgot to bump the api for ualarm, strtoll, strtoull */
#define CYGWIN_VERSION_API_MAJOR 0
-#define CYGWIN_VERSION_API_MINOR 163
+#define CYGWIN_VERSION_API_MINOR 164
/* There is also a compatibity version number associated with the
shared memory regions. It is incremented when incompatible
extern int posix_madvise (void *__addr, size_t __len, int __advice);
+extern int shm_open (const char *__name, int __oflag, mode_t __mode);
+extern int shm_unlink (const char *__name);
+
#ifdef __cplusplus
};
#endif /* __cplusplus */
return status;
}
+
+#define SHM_STORAGE "/dev/shm"
+
+extern "C" int
+shm_open (const char *name, int oflag, mode_t mode)
+{
+ /* Name must start with a single slash. */
+ if (!name || name[0] != '/' || name[1] == '/'
+ || strlen (name) > CYG_MAX_PATH - sizeof (SHM_STORAGE))
+ {
+ debug_printf ("Invalid shared memory object name '%s'", name);
+ set_errno (EINVAL);
+ return -1;
+ }
+ /* Check for valid flags. */
+ if (((oflag & O_ACCMODE) != O_RDONLY && (oflag & O_ACCMODE) != O_RDWR)
+ || (oflag & ~(O_ACCMODE | O_CREAT | O_EXCL | O_TRUNC)))
+ {
+ debug_printf ("Invalid oflag 0%o", oflag);
+ set_errno (EINVAL);
+ return -1;
+ }
+ /* Note that we require the existance of /dev/shm here. We don't
+ create this directory from here. That's the task of the installer. */
+ char shmname[CYG_MAX_PATH];
+ strcpy (shmname, SHM_STORAGE);
+ strcat (shmname, name);
+ return open (shmname, oflag, mode & 0777);
+}
+
+extern "C" int
+shm_unlink (const char *name)
+{
+ /* Name must start with a single slash. */
+ if (!name || name[0] != '/' || name[1] == '/'
+ || strlen (name) > CYG_MAX_PATH - sizeof (SHM_STORAGE))
+ {
+ debug_printf ("Invalid shared memory object name '%s'", name);
+ set_errno (EINVAL);
+ return -1;
+ }
+ char shmname[CYG_MAX_PATH];
+ strcpy (shmname, SHM_STORAGE);
+ strcat (shmname, name);
+ return unlink (shmname);
+}
{cons, {c:-1L}}, /* 28, _SC_PRIORITIZED_IO */
{cons, {c:_POSIX_REALTIME_SIGNALS}}, /* 29, _SC_REALTIME_SIGNALS */
{cons, {c:_POSIX_SEMAPHORES}}, /* 30, _SC_SEMAPHORES */
- {cons, {c:-1L}}, /* 31, _SC_SHARED_MEMORY_OBJECTS */
+ {cons, {c:_POSIX_SHARED_MEMORY_OBJECTS}}, /* 31, _SC_SHARED_MEMORY_OBJECTS */
{cons, {c:_POSIX_SYNCHRONIZED_IO}}, /* 32, _SC_SYNCHRONIZED_IO */
{cons, {c:_POSIX_TIMERS}}, /* 33, _SC_TIMERS */
{nsup, {c:0}}, /* 34, _SC_AIO_LISTIO_MAX */