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23
src/base64.c
23
src/base64.c
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@ -297,7 +297,9 @@ char *base64_decode_auto(struct base64_context *context, const char *src, \
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memcpy(pBuff, src, nSrcLen);
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memcpy(pBuff, src, nSrcLen);
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memset(pBuff + nSrcLen, context->pad_ch, nPadLen);
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memset(pBuff + nSrcLen, context->pad_ch, nPadLen);
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base64_decode(context, pBuff, nNewLen, dest, dest_len);
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base64_decode(context, pBuff, nNewLen, dest, dest_len);
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if (pBuff != tmpBuff)
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if (pBuff != tmpBuff)
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{
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{
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free(pBuff);
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free(pBuff);
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@ -383,23 +385,16 @@ char *base64_decode(struct base64_context *context, const char *src, \
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if (cycle != 0)
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if (cycle != 0)
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{
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{
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*dest = '\0';
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*dest = '\0';
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*dest_len = 0;
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*dest_len = 0;
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fprintf(stderr, "Input to decode not an even multiple of "
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fprintf(stderr, "Input to decode not an even multiple of " \
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"4 characters; pad with %c\n", context->pad_ch);
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"4 characters; pad with %c\n", context->pad_ch);
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return dest;
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return dest;
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}
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if (dummies > 2)
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{
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*dest = '\0';
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*dest_len = 0;
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fprintf(stderr, "pad char: %c count %d exceeds 2\n",
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context->pad_ch, dummies);
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return dest;
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}
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}
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*dest_len = (pDest - dest) - dummies;
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*dest_len = (pDest - dest) - dummies;
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*(dest + (*dest_len)) = '\0';
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*(dest + (*dest_len)) = '\0';
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return dest;
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return dest;
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}
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}
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@ -28,68 +28,16 @@
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#include "fastcommon/fast_allocator.h"
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#include "fastcommon/fast_allocator.h"
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#define LOOP_COUNT (30 * 1000 * 1000)
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#define LOOP_COUNT (30 * 1000 * 1000)
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#define THREAD_COUNT 2
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#define barrier() __asm__ __volatile__("" ::: "memory")
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#define barrier() __asm__ __volatile__("" ::: "memory")
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static volatile int64_t sum;
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static pthread_mutex_t lock;
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static void *atomic_thread_func(void *arg)
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{
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int k;
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for (k=1; k<=LOOP_COUNT; k++) {
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//__sync_synchronize();
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//barrier();
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__sync_add_and_fetch(&sum, k);
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}
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return NULL;
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}
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static void *mutex_thread_func(void *arg)
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{
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int k;
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for (k=1; k<=LOOP_COUNT; k++) {
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pthread_mutex_lock(&lock);
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sum += k;
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pthread_mutex_unlock(&lock);
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}
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return NULL;
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}
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typedef void *(*thread_func)(void *arg);
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static int test(const char *caption, thread_func thread_run)
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{
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int64_t start_time;
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char time_buff[32];
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pthread_t tids[THREAD_COUNT];
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int i;
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int result;
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start_time = get_current_time_ms();
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sum = 0;
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for (i=0; i<THREAD_COUNT; i++) {
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if ((result=pthread_create(tids + i, NULL, thread_run, NULL)) != 0) {
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return result;
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}
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}
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for (i=0; i<THREAD_COUNT; i++) {
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pthread_join(tids[i], NULL);
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}
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printf("%s add, LOOP_COUNT: %s, sum: %"PRId64", time used: "
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"%"PRId64" ms\n", caption, int_to_comma_str(LOOP_COUNT, time_buff),
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sum, get_current_time_ms() - start_time);
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return 0;
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}
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int main(int argc, char *argv[])
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int main(int argc, char *argv[])
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{
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{
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int result;
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int result;
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int k;
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int64_t sum;
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int64_t start_time;
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char time_buff[32];
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pthread_mutex_t lock;
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log_init();
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log_init();
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srand(time(NULL));
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srand(time(NULL));
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@ -101,13 +49,33 @@ int main(int argc, char *argv[])
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return result;
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return result;
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}
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}
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start_time = get_current_time_ms();
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sum = 0;
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for (k=1; k<=LOOP_COUNT; k++) {
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//__sync_synchronize();
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//barrier();
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__sync_add_and_fetch(&sum, k);
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}
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printf("atom add, LOOP_COUNT: %s, sum: %"PRId64", time used: "
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"%"PRId64" ms\n", int_to_comma_str(LOOP_COUNT, time_buff),
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sum, get_current_time_ms() - start_time);
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printf("lock 1: %d\n", pthread_mutex_lock(&lock));
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printf("lock 1: %d\n", pthread_mutex_lock(&lock));
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printf("lock 2: %d\n", pthread_mutex_lock(&lock));
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printf("lock 2: %d\n", pthread_mutex_lock(&lock));
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printf("unlock 1: %d\n", pthread_mutex_unlock(&lock));
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printf("unlock 1: %d\n", pthread_mutex_unlock(&lock));
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printf("unlock 2: %d\n", pthread_mutex_unlock(&lock));
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printf("unlock 2: %d\n", pthread_mutex_unlock(&lock));
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test("atom", atomic_thread_func);
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start_time = get_current_time_ms();
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test("lock", mutex_thread_func);
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sum = 0;
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for (k=1; k<=LOOP_COUNT; k++) {
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pthread_mutex_lock(&lock);
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sum += k;
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pthread_mutex_unlock(&lock);
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}
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printf("locked add, LOOP_COUNT: %s, sum: %"PRId64", time used: "
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"%"PRId64" ms\n", int_to_comma_str(LOOP_COUNT, time_buff),
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sum, get_current_time_ms() - start_time);
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return 0;
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return 0;
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}
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}
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