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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_datacpy32(void * dst, void const * src, size_t n, pcilib_endianess_t endianess) {
uint32_t * plDst = (uint32_t *) dst;
uint32_t const * plSrc = (uint32_t const *) src;
int swap = 0;
if (endianess)
swap = (endianess == PCILIB_BIG_ENDIAN)?(ntohs(1)!=1):(ntohs(1)==1);
if (swap) {
while (n > 0) {
*plDst = ntohl(*plSrc);
++plSrc;
++plDst;
--n;
}
} else {
while (n > 0) {
*plDst = *plSrc;
++plSrc;
++plDst;
--n;
}
}
return dst;
}
void *pcilib_datacpy64(void * dst, void const * src, size_t n, pcilib_endianess_t endianess) {
uint64_t * plDst = (uint64_t *) dst;
uint64_t const * plSrc = (uint64_t const *) src;
int swap = 0;
if (endianess)
swap = (endianess == PCILIB_BIG_ENDIAN)?(be64toh(1)!=1):(be64toh(1)==1);
if (swap) {
while (n > 0) {
*plDst = ntohl(*plSrc);
++plSrc;
++plDst;
--n;
}
} else {
while (n > 0) {
*plDst = *plSrc;
++plSrc;
++plDst;
--n;
}
}
return dst;
}
typedef void* (*pcilib_datacpy_routine_t)(void * dst, void const * src, size_t n, pcilib_endianess_t endianess);
static pcilib_datacpy_routine_t pcilib_datacpy_routines[4] = {
NULL, NULL, pcilib_datacpy32, pcilib_datacpy64
};
void *pcilib_datacpy(void * dst, void const * src, uint8_t size, size_t n, pcilib_endianess_t endianess) {
size_t pos = 0;
pcilib_datacpy_routine_t routine;
assert((size)&&(size <= 8));
while (size >>= 1) ++pos;
routine = pcilib_datacpy_routines[pos];
return routine(dst, src, n, endianess);
}
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