blob: 047b5565ba1e5e3f4a1b01ef9e128bd62f0b23df (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
#include <iostream>
#include <ctime>
#include <sys/time.h>
static void print_usage(const char *argv0) {
std::cerr
<< "Usage: " << argv0 << " [OPTIONS]\n"
<< " -h Show this help\n"
<< " -t Print tags in local time format\n"
<< " -s Print tags in timestamp format\n"
<< std::flush;
}
int main(int argc, char **argv) {
bool print_local_time = true;
for (int i = 1; i < argc; i++) {
if (argv[i][0] != '-') {
std::cerr << "Unrecognised argument: '" << argv[i] << "'" << std::endl;
print_usage(argv[0]);
return 1;
}
for (int j = 1; argv[i][j]; j++) {
switch (argv[i][j]) {
case 'h': print_usage(argv[0]); return 0;
case 't': print_local_time = true; break;
case 's': print_local_time = false; break;
}
}
}
std::string line;
while (std::getline(std::cin, line)) {
struct timeval tv;
gettimeofday(&tv, nullptr);
char buffer[128];
ssize_t nw = 0;
if (print_local_time) {
const struct tm *tm = localtime(&tv.tv_sec);
nw = strftime(buffer, sizeof buffer - 7, "%Y-%m-%d %H:%M:%S.", tm);
} else {
nw = snprintf(buffer, sizeof buffer - 7, "%ld.", tv.tv_sec);
}
int multiplier = 100000;
for (int i = 0; i < 6; i++) {
buffer[nw + i] = '0' + tv.tv_usec / multiplier % 10;
multiplier /= 10;
}
buffer[nw + 6] = '\0';
std::cout << buffer << ' ' << line << std::endl;
}
}
|
