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 #include "ppapi/native_client/src/trusted/plugin/pnacl_options.h" 6 7 #include <iterator> 8 #include <vector> 9 10 #include "native_client/src/include/nacl_string.h" 11 12 namespace { 13 14 nacl::string ReplaceBadFSChars(nacl::string str, 15 const nacl::string& bad_chars, 16 const nacl::string& replacement) { 17 size_t replace_pos = str.find_first_of(bad_chars); 18 while (replace_pos != nacl::string::npos) { 19 str = str.replace(replace_pos, 1, replacement); 20 replace_pos = str.find_first_of(bad_chars); 21 } 22 return str; 23 } 24 25 } // namespace 26 27 namespace plugin { 28 29 PnaclOptions::PnaclOptions() : translate_(false), opt_level_(2) { } 30 31 PnaclOptions::~PnaclOptions() { 32 } 33 34 nacl::string PnaclOptions::GetCacheKey() const { 35 // TODO(jvoung): We need to read the PNaCl translator's manifest 36 // to grab the NaCl / PNaCl ABI version too. 37 nacl::stringstream ss; 38 // Cast opt_level_ as int so that it doesn't think it's a char. 39 ss << "-O:" << static_cast<int>(opt_level_) 40 << ";cache_validators:" << cache_validators_; 41 // HTML5 FileSystem-based cache does not allow some characters which 42 // may appear in URLs, ETags, or Last-Modified times. Once we move to 43 // our own cache-backend, it will be more tolerant of various cache 44 // key values. 45 // See: http://dev.w3.org/2009/dap/file-system/file-dir-sys.html#naming-restrictions 46 nacl::string key = ss.str(); 47 key = ReplaceBadFSChars(key, "/", "_FWDSLASH_"); 48 key = ReplaceBadFSChars(key, "\\", "_BCKSLASH_"); 49 key = ReplaceBadFSChars(key, "\0", "_NULL_"); 50 return key; 51 } 52 53 void PnaclOptions::set_opt_level(int32_t l) { 54 if (l <= 0) { 55 opt_level_ = 0; 56 return; 57 } 58 // Currently only allow 0 or 2, since that is what we test. 59 opt_level_ = 2; 60 } 61 62 std::vector<char> PnaclOptions::GetOptCommandline() const { 63 std::vector<char> result; 64 nacl::string str; 65 66 nacl::stringstream ss; 67 ss << "-O" << opt_level_; 68 str = ss.str(); 69 70 std::copy(str.begin(), str.end(), std::back_inserter(result)); 71 result.push_back('\x00'); 72 73 return result; 74 } 75 76 } // namespace plugin 77
