1 // Copyright 2013 the V8 project 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 "src/icu_util.h" 6 7 #if defined(_WIN32) 8 #include <windows.h> 9 #endif 10 11 #if defined(V8_I18N_SUPPORT) 12 #include <stdio.h> 13 #include <stdlib.h> 14 15 #include "unicode/putil.h" 16 #include "unicode/udata.h" 17 18 #define ICU_UTIL_DATA_FILE 0 19 #define ICU_UTIL_DATA_SHARED 1 20 #define ICU_UTIL_DATA_STATIC 2 21 22 #define ICU_UTIL_DATA_SYMBOL "icudt" U_ICU_VERSION_SHORT "_dat" 23 #define ICU_UTIL_DATA_SHARED_MODULE_NAME "icudt.dll" 24 #endif 25 26 namespace v8 { 27 28 namespace internal { 29 30 #if defined(V8_I18N_SUPPORT) && (ICU_UTIL_DATA_IMPL == ICU_UTIL_DATA_FILE) 31 namespace { 32 char* g_icu_data_ptr = NULL; 33 34 void free_icu_data_ptr() { 35 delete[] g_icu_data_ptr; 36 } 37 38 } // namespace 39 #endif 40 41 bool InitializeICU(const char* icu_data_file) { 42 #if !defined(V8_I18N_SUPPORT) 43 return true; 44 #else 45 #if ICU_UTIL_DATA_IMPL == ICU_UTIL_DATA_SHARED 46 // We expect to find the ICU data module alongside the current module. 47 HMODULE module = LoadLibraryA(ICU_UTIL_DATA_SHARED_MODULE_NAME); 48 if (!module) return false; 49 50 FARPROC addr = GetProcAddress(module, ICU_UTIL_DATA_SYMBOL); 51 if (!addr) return false; 52 53 UErrorCode err = U_ZERO_ERROR; 54 udata_setCommonData(reinterpret_cast<void*>(addr), &err); 55 return err == U_ZERO_ERROR; 56 #elif ICU_UTIL_DATA_IMPL == ICU_UTIL_DATA_STATIC 57 // Mac/Linux bundle the ICU data in. 58 return true; 59 #elif ICU_UTIL_DATA_IMPL == ICU_UTIL_DATA_FILE 60 if (!icu_data_file) return false; 61 62 if (g_icu_data_ptr) return true; 63 64 FILE* inf = fopen(icu_data_file, "rb"); 65 if (!inf) return false; 66 67 fseek(inf, 0, SEEK_END); 68 size_t size = ftell(inf); 69 rewind(inf); 70 71 g_icu_data_ptr = new char[size]; 72 if (fread(g_icu_data_ptr, 1, size, inf) != size) { 73 delete[] g_icu_data_ptr; 74 g_icu_data_ptr = NULL; 75 fclose(inf); 76 return false; 77 } 78 fclose(inf); 79 80 atexit(free_icu_data_ptr); 81 82 UErrorCode err = U_ZERO_ERROR; 83 udata_setCommonData(reinterpret_cast<void*>(g_icu_data_ptr), &err); 84 return err == U_ZERO_ERROR; 85 #endif 86 #endif 87 } 88 89 } // namespace internal 90 } // namespace v8 91
