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#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <unistd.h>
#include <errno.h>
#include <assert.h>
#include <sys/time.h>
#include "util.h"
int uniqid(void) {
static int i = 0;
return i++;
}
void xxd(FILE *stream, const void *buf_, size_t length) {
unsigned char *buf = (unsigned char*)buf_;
for (size_t cursor = 0; cursor < length;) {
fprintf(stream, "%08zx:", cursor);
for (int i = 0; i < 16; i++) {
if (i % 2 == 0) fprintf(stream, " ");
if (i % 8 == 0) fprintf(stream, " ");
if (cursor + i < length) fprintf(stream, "%02x", (unsigned)buf[cursor + i]);
else fprintf(stream, " ");
}
fprintf(stream, " |");
for (int i = 0; i < 16 && cursor + i < length; i++) {
if (isprint(buf[cursor + i])) fprintf(stream, "%c", buf[cursor + i]);
else fprintf(stream, ".");
}
fprintf(stream, "|\n");
cursor += 16;
}
}
ssize_t readall(int fd, void *data, size_t length) {
size_t cursor = 0;
while (cursor < length) {
ssize_t nr = read(fd, data + cursor, length - cursor);
if (nr < 0) {
if (errno == EINTR) continue;
return -1;
}
assert(nr > 0);
cursor += nr;
}
return length;
}
ssize_t writeall(int fd, const void *data, size_t length) {
size_t cursor = 0;
while (cursor < length) {
ssize_t nw = write(fd, data + cursor, length - cursor);
if (nw < 0) {
if (errno == EINTR) continue;
return -1;
}
assert(nw > 0);
cursor += nw;
}
return length;
}
int maxi(int a, int b) {
return a > b ? a : b;
}
int64_t gettimestamp(void) {
struct timeval tv;
gettimeofday(&tv, NULL);
return tv.tv_sec * 1000000LL + tv.tv_usec;
}
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