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      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 */
    186