osdep: remove shmem wrapper

This is unused now that the cache is always threaded.

1 files changed, 0 insertions, 137 deletions

diff --git a/osdep/shmem.c b/osdep/shmem.c
deleted file mode 100644
index 5fc7db19d3..0000000000
--- a/osdep/shmem.c
+++ /dev/null
@@ -1,137 +0,0 @@
-/*
- * shared memory allocation
- *
- * based on mpg123's xfermem.c by
- * Oliver Fromme <oliver.fromme@heim3.tu-clausthal.de>
- *
- * This file is part of MPlayer.
- *
- * MPlayer is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * MPlayer is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with MPlayer; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "config.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/uio.h>
-#ifdef HAVE_SYS_MMAN_H
-#include <sys/mman.h>
-#endif
-#include <sys/socket.h>
-#include <fcntl.h>
-#include <inttypes.h>
-
-#include "core/mp_msg.h"
-
-#ifdef AIX
-#include <sys/select.h>
-#endif
-
-#ifdef HAVE_SHM
-#include <sys/ipc.h>
-#include <sys/shm.h>
-#endif
-
-#include "shmem.h"
-
-#if defined(MAP_ANONYMOUS) && !defined(MAP_ANON)
-#define MAP_ANON MAP_ANONYMOUS
-#endif
-
-static int shmem_type=0;
-
-void* shmem_alloc(int64_t size){
-void* p;
-static int devzero = -1;
-if (size > SIZE_MAX) {
-  mp_msg(MSGT_OSDEP, MSGL_FATAL,
-         "Shared memory allocation larger than system max. allocation size.\n");
-  return NULL;
-}
-while(1){
-  switch(shmem_type){
-  case 0:  // ========= MAP_ANON|MAP_SHARED ==========
-#ifdef MAP_ANON
-    p=mmap(0,size,PROT_READ|PROT_WRITE,MAP_ANON|MAP_SHARED,-1,0);
-    if(p==MAP_FAILED) break; // failed
-    mp_dbg(MSGT_OSDEP, MSGL_DBG2, "shmem: %"PRId64" bytes allocated using mmap anon (%p)\n",size,p);
-    return p;
-#else
-// system does not support MAP_ANON at all (e.g. solaris 2.5.1/2.6), just fail
-    mp_dbg(MSGT_OSDEP, MSGL_DBG3, "shmem: using mmap anon failed\n");
-#endif
-    break;
-  case 1:  // ========= MAP_SHARED + /dev/zero ==========
-    if (devzero == -1 && (devzero = open("/dev/zero", O_RDWR, 0)) == -1) break;
-    p=mmap(0,size,PROT_READ|PROT_WRITE,MAP_SHARED,devzero,0);
-    if(p==MAP_FAILED) break; // failed
-    mp_dbg(MSGT_OSDEP, MSGL_DBG2, "shmem: %"PRId64" bytes allocated using mmap /dev/zero (%p)\n",size,p);
-    return p;
-  case 2: { // ========= shmget() ==========
-#ifdef HAVE_SHM
-    struct shmid_ds shmemds;
-    int shmemid;
-    if ((shmemid = shmget(IPC_PRIVATE, size, IPC_CREAT | 0600)) == -1) break;
-    if ((p = shmat(shmemid, 0, 0)) == (void *)-1){
-      mp_msg(MSGT_OSDEP, MSGL_ERR, "shmem: shmat() failed: %s\n", strerror(errno));
-      shmctl (shmemid, IPC_RMID, &shmemds);
-      break;
-    }
-    if (shmctl(shmemid, IPC_RMID, &shmemds) == -1) {
-      mp_msg(MSGT_OSDEP, MSGL_ERR, "shmem: shmctl() failed: %s\n", strerror(errno));
-      if (shmdt(p) == -1) perror ("shmdt()");
-      break;
-    }
-    mp_dbg(MSGT_OSDEP, MSGL_DBG2, "shmem: %"PRId64" bytes allocated using SHM (%p)\n",size,p);
-    return p;
-#else
-    mp_msg(MSGT_OSDEP, MSGL_FATAL, "shmem: no SHM support was compiled in!\n");
-    return NULL;
-#endif
-    }
-  default:
-    mp_msg(MSGT_OSDEP, MSGL_FATAL,
-	"FATAL: Cannot allocate %"PRId64" bytes of shared memory :(\n",size);
-    return NULL;
-  }
-  ++shmem_type;
-}
-}
-
-void shmem_free(void* p,int64_t size){
-  switch(shmem_type){
-    case 0:
-    case 1:
-	    if(munmap(p,size)) {
-		mp_msg(MSGT_OSDEP, MSGL_ERR, "munmap failed on %p %"PRId64" bytes: %s\n",
-		    p,size,strerror(errno));
-	    }
-      break;
-    case 2:
-#ifdef HAVE_SHM
-	    if (shmdt(p) == -1)
-		mp_msg(MSGT_OSDEP, MSGL_ERR, "shmfree: shmdt() failed: %s\n",
-		    strerror(errno));
-#else
-	    mp_msg(MSGT_OSDEP, MSGL_ERR, "shmfree: no SHM support was compiled in!\n");
-#endif
-      break;
-  }
-}