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#define _POSIX_C_SOURCE 200112L
#define _GNU_SOURCE
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <stdint.h>
#include <assert.h>
#include <ctype.h>
#include <time.h>
#include <sched.h>
#include <arpa/inet.h>
#include <sys/time.h>
#include "pci.h"
#include "tools.h"
#include "error.h"
void *pcilib_memcpy8(void * dst, void const * src, size_t len) {
int i;
for (i = 0; i < len; i++) ((char*)dst)[i] = ((char*)src)[i];
return dst;
}
void *pcilib_memcpy32(void * dst, void const * src, size_t len) {
uint32_t * plDst = (uint32_t *) dst;
uint32_t const * plSrc = (uint32_t const *) src;
while (len >= 4) {
// *plDst = ntohl(*plSrc);
*plDst = *plSrc;
plSrc++;
plDst++;
len -= 4;
}
char * pcDst = (char *) plDst;
char const * pcSrc = (char const *) plSrc;
while (len--) {
*pcDst++ = *pcSrc++;
}
return (dst);
}
void *pcilib_memcpy64(void * dst, void const * src, size_t len) {
uint64_t * plDst = (uint64_t *) dst;
uint64_t const * plSrc = (uint64_t const *) src;
while (len >= 8) {
*plDst++ = *plSrc++;
len -= 8;
}
char * pcDst = (char *) plDst;
char const * pcSrc = (char const *) plSrc;
while (len--) {
*pcDst++ = *pcSrc++;
}
return (dst);
}
typedef void* (*pcilib_memcpy_routine_t)(void * dst, void const *src, size_t bytes);
static pcilib_memcpy_routine_t pcilib_memcpy_routines[4] = {
pcilib_memcpy8, NULL, pcilib_memcpy32, pcilib_memcpy64
};
void *pcilib_memcpy(void * dst, void const * src, uint8_t access, size_t n) {
size_t pos = 0, size = n * access;
pcilib_memcpy_routine_t routine;
assert((access)&&(access <= 8));
while (access >>= 1) ++pos;
routine = pcilib_memcpy_routines[pos];
return routine(dst, src, size);
}
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