Revision 30faaf70
| b/compatfd.c | ||
|---|---|---|
| 26 | 26 |
static void *sigwait_compat(void *opaque) |
| 27 | 27 |
{
|
| 28 | 28 |
struct sigfd_compat_info *info = opaque; |
| 29 |
int err; |
|
| 30 | 29 |
sigset_t all; |
| 31 | 30 |
|
| 32 | 31 |
sigfillset(&all); |
| 33 | 32 |
sigprocmask(SIG_BLOCK, &all, NULL); |
| 34 | 33 |
|
| 35 |
do {
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siginfo_t siginfo; |
|
| 34 |
while (1) {
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int sig; |
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int err; |
|
| 37 | 37 |
|
| 38 |
err = sigwaitinfo(&info->mask, &siginfo); |
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if (err == -1 && errno == EINTR) {
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err = 0; |
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continue; |
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} |
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| 43 |
|
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| 44 |
if (err > 0) {
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| 45 |
char buffer[128]; |
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| 38 |
err = sigwait(&info->mask, &sig); |
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| 39 |
if (err != 0) {
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| 40 |
if (errno == EINTR) {
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continue; |
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} else {
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return NULL; |
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} |
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} else {
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struct qemu_signalfd_siginfo buffer; |
|
| 46 | 47 |
size_t offset = 0; |
| 47 | 48 |
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memcpy(buffer, &err, sizeof(err)); |
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| 49 |
memset(&buffer, 0, sizeof(buffer)); |
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| 50 |
buffer.ssi_signo = sig; |
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|
|
| 49 | 52 |
while (offset < sizeof(buffer)) {
|
| 50 | 53 |
ssize_t len; |
| 51 | 54 |
|
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len = write(info->fd, buffer + offset, |
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len = write(info->fd, (char *)&buffer + offset,
|
|
| 53 | 56 |
sizeof(buffer) - offset); |
| 54 | 57 |
if (len == -1 && errno == EINTR) |
| 55 | 58 |
continue; |
| 56 | 59 |
|
| 57 | 60 |
if (len <= 0) {
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err = -1; |
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break; |
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return NULL; |
|
| 60 | 62 |
} |
| 61 | 63 |
|
| 62 | 64 |
offset += len; |
| 63 | 65 |
} |
| 64 | 66 |
} |
| 65 |
} while (err >= 0); |
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| 66 |
|
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return NULL; |
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| 67 |
} |
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| 68 | 68 |
} |
| 69 | 69 |
|
| 70 | 70 |
static int qemu_signalfd_compat(const sigset_t *mask) |
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