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
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
#include <getopt.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>
#define die(msg, ...) \
do { \
fprintf(stderr, msg "\n", ##__VA_ARGS__); \
exit(EXIT_FAILURE); \
} while (0)
static pid_t child;
static bool print_timeout = true;
static void alarm_handler(int sig)
{
char msg[] = "TEST TIMEOUT\n";
kill(child, SIGKILL);
if (print_timeout)
write(STDOUT_FILENO, msg, strlen(msg));
_exit(EXIT_FAILURE);
}
static void usage(void)
{
puts("qemu-wrapper - wrapper for qemu to catch test success/failure\n"
"Usage: qemu-wrapper [OPTIONS] -- <qemu-command>\n"
"\n"
"Options\n"
" -S Exit on success\n"
" -F Exit on failure\n"
" -T TIMEOUT Timeout after TIMEOUT seconds\n"
" -h Display this help and exit\n");
}
int main(int argc, char *argv[])
{
bool exit_on_success = false;
bool exit_on_failure = false;
unsigned long timeout = 0;
int opt, ret = EXIT_FAILURE;
struct timespec start, ts;
setlinebuf(stdin);
setlinebuf(stdout);
if (clock_gettime(CLOCK_MONOTONIC, &start))
die("clock_gettime error: %m");
while ((opt = getopt(argc, argv, "SFT:h")) != -1) {
switch (opt) {
case 'S':
exit_on_success = true;
break;
case 'F':
exit_on_failure = true;
break;
case 'T':
errno = 0;
timeout = strtoul(optarg, NULL, 10);
if (errno)
die("error parsing timeout: %m");
break;
case 'h':
usage();
exit(EXIT_SUCCESS);
case '?':
usage();
exit(EXIT_FAILURE);
}
}
int pipefd[2];
if (pipe(pipefd))
die("error creating pipe: %m");
child = fork();
if (child < 0)
die("fork error: %m");
if (!child) {
if (dup2(pipefd[1], STDOUT_FILENO) < 0)
die("dup2 error: %m");
if (dup2(pipefd[1], STDERR_FILENO) < 0)
die("dup2 error: %m");
close(pipefd[1]);
int devnull = open("/dev/null", O_RDONLY);
if (devnull < 0)
die("error opening /dev/null; %m");
if (dup2(devnull, STDIN_FILENO) < 0)
die("dup2 error: %m");
close(devnull);
execvp(argv[optind], argv + optind);
die("error execing %s: %m", argv[optind]);
}
struct sigaction alarm_action = { .sa_handler = alarm_handler };
if (sigaction(SIGALRM, &alarm_action, NULL))
die("sigaction error: %m");
if (timeout)
alarm(timeout);
FILE *childf = fdopen(pipefd[0], "r");
if (!childf) {
fprintf(stderr, "fdopen error: %m\n");
goto out;
}
size_t n = 0, len;
char *line = NULL;
while ((len = getline(&line, &n, childf)) >= 0) {
if (clock_gettime(CLOCK_MONOTONIC, &ts)) {
fprintf(stderr, "clock_gettime error: %m\n");
break;
}
unsigned long elapsed = ts.tv_sec - start.tv_sec;
printf("%.5lu ", elapsed);
fputs(line, stdout);
if (exit_on_success &&
strstr(line, "TEST SUCCESS")) {
ret = 0;
break;
}
if (exit_on_failure && strstr(line, "TEST FAILED"))
break;
if (exit_on_failure && strstr(line, "Kernel panic")) {
/* Read output for five more seconds, then exit */
print_timeout = false;
alarm(5);
}
}
out:
kill(child, SIGKILL);
exit(ret);
}
|
