icuSources/io/locbund.cpp

   1 /*
   2 *******************************************************************************
   3 *
   4 *   Copyright (C) 1998-2012, International Business Machines
   5 *   Corporation and others.  All Rights Reserved.
   6 *
   7 *******************************************************************************
   8 *
   9 * File locbund.cpp
  10 *
  11 * Modification History:
  12 *
  13 *   Date        Name        Description
  14 *   11/18/98    stephen        Creation.
  15 *   12/10/1999  bobbyr(at)optiosoftware.com       Fix for memory leak + string allocation bugs
  16 *******************************************************************************
  17 */
  18
  19 #include "unicode/utypes.h"
  20
  21 #if !UCONFIG_NO_FORMATTING
  22
  23 #include "locbund.h"
  24
  25 #include "cmemory.h"
  26 #include "cstring.h"
  27 #include "ucln_io.h"
  28 #include "umutex.h"
  29 #include "unicode/ustring.h"
  30 #include "unicode/uloc.h"
  31
  32 static UNumberFormat *gPosixNumberFormat[ULOCALEBUNDLE_NUMBERFORMAT_COUNT];
  33
  34 U_CDECL_BEGIN
  35 static UBool U_CALLCONV locbund_cleanup(void) {
  36     int32_t style;
  37     for (style = 0; style < ULOCALEBUNDLE_NUMBERFORMAT_COUNT; style++) {
  38         unum_close(gPosixNumberFormat[style]);
  39         gPosixNumberFormat[style] = NULL;
  40     }
  41     return TRUE;
  42 }
  43 U_CDECL_END
  44
  45
  46 static inline UNumberFormat * copyInvariantFormatter(ULocaleBundle *result, UNumberFormatStyle style) {
  47     if (result->fNumberFormat[style-1] == NULL) {
  48         UErrorCode status = U_ZERO_ERROR;
  49         UBool needsInit;
  50
  51         UMTX_CHECK(NULL, gPosixNumberFormat[style-1] == NULL, needsInit);
  52         if (needsInit) {
  53             UNumberFormat *formatAlias = unum_open(style, NULL, 0, "en_US_POSIX", NULL, &status);
  54
  55             /* Cache upon first request. */
  56             if (U_SUCCESS(status)) {
  57                 umtx_lock(NULL);
  58                 gPosixNumberFormat[style-1] = formatAlias;
  59                 ucln_io_registerCleanup(UCLN_IO_LOCBUND, locbund_cleanup);
  60                 umtx_unlock(NULL);
  61             }
  62         }
  63
  64         /* Copy the needed formatter. */
  65         result->fNumberFormat[style-1] = unum_clone(gPosixNumberFormat[style-1], &status);
  66     }
  67     return result->fNumberFormat[style-1];
  68 }
  69
  70 U_CAPI ULocaleBundle *
  71 u_locbund_init(ULocaleBundle *result, const char *loc)
  72 {
  73     int32_t len;
  74
  75     if(result == 0)
  76         return 0;
  77
  78     if (loc == NULL) {
  79         loc = uloc_getDefault();
  80     }
  81
  82     uprv_memset(result, 0, sizeof(ULocaleBundle));
  83
  84     len = (int32_t)strlen(loc);
  85     result->fLocale = (char*) uprv_malloc(len + 1);
  86     if(result->fLocale == 0) {
  87         return 0;
  88     }
  89
  90     uprv_strcpy(result->fLocale, loc);
  91
  92     result->isInvariantLocale = uprv_strcmp(result->fLocale, "en_US_POSIX") == 0;
  93
  94     return result;
  95 }
  96
  97 /*U_CAPI ULocaleBundle *
  98 u_locbund_new(const char *loc)
  99 {
 100     ULocaleBundle *result = (ULocaleBundle*) uprv_malloc(sizeof(ULocaleBundle));
 101     return u_locbund_init(result, loc);
 102 }
 103
 104 U_CAPI ULocaleBundle *
 105 u_locbund_clone(const ULocaleBundle *bundle)
 106 {
 107     ULocaleBundle *result = (ULocaleBundle*)uprv_malloc(sizeof(ULocaleBundle));
 108     UErrorCode status = U_ZERO_ERROR;
 109     int32_t styleIdx;
 110
 111     if(result == 0)
 112         return 0;
 113
 114     result->fLocale = (char*) uprv_malloc(strlen(bundle->fLocale) + 1);
 115     if(result->fLocale == 0) {
 116         uprv_free(result);
 117         return 0;
 118     }
 119
 120     strcpy(result->fLocale, bundle->fLocale );
 121
 122     for (styleIdx = 0; styleIdx < ULOCALEBUNDLE_NUMBERFORMAT_COUNT; styleIdx++) {
 123         status = U_ZERO_ERROR;
 124         if (result->fNumberFormat[styleIdx]) {
 125             result->fNumberFormat[styleIdx] = unum_clone(bundle->fNumberFormat[styleIdx], &status);
 126             if (U_FAILURE(status)) {
 127                 result->fNumberFormat[styleIdx] = NULL;
 128             }
 129         }
 130         else {
 131             result->fNumberFormat[styleIdx] = NULL;
 132         }
 133     }
 134     result->fDateFormat         = (bundle->fDateFormat == 0 ? 0 :
 135         udat_clone(bundle->fDateFormat, &status));
 136     result->fTimeFormat         = (bundle->fTimeFormat == 0 ? 0 :
 137         udat_clone(bundle->fTimeFormat, &status));
 138
 139     return result;
 140 }*/
 141
 142 U_CAPI void
 143 u_locbund_close(ULocaleBundle *bundle)
 144 {
 145     int32_t styleIdx;
 146
 147     uprv_free(bundle->fLocale);
 148
 149     for (styleIdx = 0; styleIdx < ULOCALEBUNDLE_NUMBERFORMAT_COUNT; styleIdx++) {
 150         if (bundle->fNumberFormat[styleIdx]) {
 151             unum_close(bundle->fNumberFormat[styleIdx]);
 152         }
 153     }
 154
 155     uprv_memset(bundle, 0, sizeof(ULocaleBundle));
 156 /*    uprv_free(bundle);*/
 157 }
 158
 159 U_CAPI UNumberFormat *
 160 u_locbund_getNumberFormat(ULocaleBundle *bundle, UNumberFormatStyle style)
 161 {
 162     UNumberFormat *formatAlias = NULL;
 163     if (style > UNUM_IGNORE) {
 164         formatAlias = bundle->fNumberFormat[style-1];
 165         if (formatAlias == NULL) {
 166             if (bundle->isInvariantLocale) {
 167                 formatAlias = copyInvariantFormatter(bundle, style);
 168             }
 169             else {
 170                 UErrorCode status = U_ZERO_ERROR;
 171                 formatAlias = unum_open(style, NULL, 0, bundle->fLocale, NULL, &status);
 172                 if (U_FAILURE(status)) {
 173                     unum_close(formatAlias);
 174                     formatAlias = NULL;
 175                 }
 176                 else {
 177                     bundle->fNumberFormat[style-1] = formatAlias;
 178                 }
 179             }
 180         }
 181     }
 182     return formatAlias;
 183 }
 184
 185 #endif /* #if !UCONFIG_NO_FORMATTING */