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| 1 /* Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 * Use of this source code is governed by a BSD-style license that can be | |
| 3 * found in the LICENSE file. | |
| 4 */ | |
| 5 #include "nacl_mounts/mount.h" | |
| 6 | |
| 7 #include <errno.h> | |
| 8 #include <fcntl.h> | |
| 9 #include <string> | |
| 10 | |
| 11 #include "nacl_mounts/mount_node.h" | |
| 12 #include "nacl_mounts/mount_node_dir.h" | |
| 13 #include "nacl_mounts/mount_node_mem.h" | |
| 14 #include "nacl_mounts/osstat.h" | |
| 15 #include "nacl_mounts/path.h" | |
| 16 #include "utils/auto_lock.h" | |
| 17 #include "utils/ref_object.h" | |
| 18 | |
| 19 #if defined(WIN32) | |
| 20 #include <windows.h> | |
| 21 #endif | |
| 22 | |
| 23 Mount::Mount() | |
| 24 : dev_(0) { | |
| 25 } | |
| 26 | |
| 27 Mount::~Mount() {} | |
| 28 | |
| 29 bool Mount::Init(int dev, StringMap_t& args, PepperInterface* ppapi) { | |
| 30 dev_ = dev; | |
| 31 ppapi_ = ppapi; | |
| 32 return true; | |
| 33 } | |
| 34 | |
| 35 void Mount::Destroy() {} | |
| 36 | |
| 37 void Mount::AcquireNode(MountNode* node) { | |
| 38 AutoLock lock(&lock_); | |
| 39 node->Acquire(); | |
| 40 } | |
| 41 | |
| 42 void Mount::ReleaseNode(MountNode* node) { | |
| 43 AutoLock lock(&lock_); | |
| 44 node->Release(); | |
| 45 } | |
| 46 | |
| 47 int Mount::OpenModeToPermission(int mode) { | |
| 48 int out; | |
| 49 switch (mode & 3) { | |
| 50 case O_RDONLY: out = S_IREAD; | |
| 51 case O_WRONLY: out = S_IWRITE; | |
| 52 case O_RDWR: out = S_IREAD | S_IWRITE; | |
| 53 } | |
| 54 return out; | |
| 55 } | |
| 56 | |
| 57 | |
| 58 void Mount::OnNodeCreated(MountNode* node) { | |
| 59 node->stat_.st_ino = inode_pool_.Acquire(); | |
| 60 node->stat_.st_dev = dev_; | |
| 61 } | |
| 62 | |
| 63 void Mount::OnNodeDestroyed(MountNode* node) { | |
| 64 if (node->stat_.st_ino) inode_pool_.Release(node->stat_.st_ino); | |
| 65 } | |
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