1 // Copyright (c) 2013 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 #ifndef LIBRARIES_NACL_IO_MOUNT_NODE_HTTP_H_ 6 #define LIBRARIES_NACL_IO_MOUNT_NODE_HTTP_H_ 7 8 #include <map> 9 #include <string> 10 #include <vector> 11 12 #include "nacl_io/error.h" 13 #include "nacl_io/mount_node.h" 14 #include "nacl_io/pepper_interface.h" 15 16 namespace nacl_io { 17 18 typedef std::map<std::string, std::string> StringMap_t; 19 20 class MountNodeHttp : public MountNode { 21 public: 22 virtual Error FSync(); 23 virtual Error GetDents(size_t offs, 24 struct dirent* pdir, 25 size_t count, 26 int* out_bytes); 27 virtual Error GetStat(struct stat* stat); 28 virtual Error Read(size_t offs, void* buf, size_t count, int* out_bytes); 29 virtual Error FTruncate(off_t size); 30 virtual Error Write(size_t offs, 31 const void* buf, 32 size_t count, 33 int* out_bytes); 34 virtual Error GetSize(size_t* out_size); 35 36 void SetCachedSize(off_t size); 37 38 protected: 39 MountNodeHttp(Mount* mount, const std::string& url, bool cache_content); 40 41 private: 42 Error OpenUrl(const char* method, 43 StringMap_t* request_headers, 44 PP_Resource* out_loader, 45 PP_Resource* out_request, 46 PP_Resource* out_response, 47 int32_t* out_statuscode, 48 StringMap_t* out_response_headers); 49 50 Error DownloadToCache(); 51 Error ReadPartialFromCache(size_t offs, 52 void* buf, 53 int count, 54 int* out_bytes); 55 Error DownloadPartial(size_t offs, void* buf, size_t count, int* out_bytes); 56 Error DownloadToBuffer(PP_Resource loader, 57 void* buf, 58 int count, 59 int* out_bytes); 60 61 std::string url_; 62 std::vector<char> buffer_; 63 64 bool cache_content_; 65 bool has_cached_size_; 66 std::vector<char> cached_data_; 67 68 friend class MountHttp; 69 }; 70 71 } // namespace nacl_io 72 73 #endif // LIBRARIES_NACL_IO_MOUNT_NODE_HTTP_H_ 74
