#include <malloc.h>
#include <stdio.h>
#include "unicode/utypes.h"
#include "unicode/putil.h"
#include "unicode/uclean.h"
#include "unicode/ucnv.h"
#include "unicode/utimer.h"
static size_t icuMemUsage = 0;
U_CDECL_BEGIN
void *U_CALLCONV
my_alloc(const void *context, size_t size) {
size_t *p = (size_t *)malloc(size + sizeof(size_t));
if (p != NULL) {
icuMemUsage += size;
*p = size;
return p + 1;
} else {
return NULL;
}
}
void U_CALLCONV
my_free(const void *context, void *mem) {
if (mem != NULL) {
const size_t *p = (const size_t *)mem - 1;
icuMemUsage -= *p;
free((void *)p);
}
}
void *U_CALLCONV
my_realloc(const void *context, void *mem, size_t size) {
my_free(context, mem);
return NULL;
}
U_CDECL_END
int main(int argc, const char *argv[]) {
UErrorCode errorCode = U_ZERO_ERROR;
u_setMemoryFunctions(NULL, my_alloc, my_realloc, my_free, &errorCode);
if(U_FAILURE(errorCode)) {
fprintf(stderr,
"u_setMemoryFunctions() failed - %s\n",
u_errorName(errorCode));
return errorCode;
}
if (argc > 1) {
printf("u_setDataDirectory(%s)\n", argv[1]);
u_setDataDirectory(argv[1]);
}
ucnv_close(ucnv_open("ibm-1208", &errorCode));
if(U_FAILURE(errorCode)) {
fprintf(stderr,
"unable to open UTF-8 converter via an alias - %s\n",
u_errorName(errorCode));
return errorCode;
}
printf("memory usage after ucnv_open(ibm-1208): %lu\n", (long)icuMemUsage);
UTimer start_time;
utimer_getTime(&start_time);
int32_t count = ucnv_countAvailable();
double elapsed = utimer_getElapsedSeconds(&start_time);
printf("ucnv_countAvailable() reports that %d converters are available.\n", count);
printf("ucnv_countAvailable() took %g seconds to figure this out.\n", elapsed);
printf("memory usage after ucnv_countAvailable(): %lu\n", (long)icuMemUsage);
ucnv_flushCache();
printf("memory usage after ucnv_flushCache(): %lu\n", (long)icuMemUsage);
u_cleanup();
printf("memory usage after u_cleanup(): %lu\n", (long)icuMemUsage);
return 0;
}