ShuriZma
/
xqemu
mirror of https://github.com/xqemu/xqemu.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

os-posix: change tab to space avoid violating coding style 

Cc: Eric Blake <eblake@redhat.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This commit is contained in:
Gonglei 2014-09-26 16:14:30 +08:00 committed by Michael Tokarev
parent 59a2c4ce2b
commit 63ce8e150c
1 changed files with 44 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

83
os-posix.c
View File

@ -204,45 +204,49 @@ static void change_root(void)
void os_daemonize(void) void os_daemonize(void)
{ {
if (daemonize) { if (daemonize) {
pid_t pid; pid_t pid;
if (pipe(fds) == -1) if (pipe(fds) == -1) {
exit(1); exit(1);
}
pid = fork(); pid = fork();
if (pid > 0) { if (pid > 0) {
uint8_t status; uint8_t status;
ssize_t len; ssize_t len;
close(fds[1]); close(fds[1]);
again: again:
len = read(fds[0], &status, 1); len = read(fds[0], &status, 1);
if (len == -1 && (errno == EINTR)) if (len == -1 && (errno == EINTR)) {
goto again; goto again;
}
if (len != 1) if (len != 1) {
exit(1); exit(1);
}
else if (status == 1) { else if (status == 1) {
fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno)); fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
exit(1); exit(1);
} else } else {
exit(0); exit(0);
} else if (pid < 0) }
} else if (pid < 0) {
exit(1);
}
close(fds[0]);
qemu_set_cloexec(fds[1]);
setsid();
pid = fork();
if (pid > 0) {
exit(0);
} else if (pid < 0) {
exit(1); exit(1);
}
close(fds[0]); umask(027);
qemu_set_cloexec(fds[1]);
setsid();
pid = fork();
if (pid > 0)
exit(0);
else if (pid < 0)
exit(1);
umask(027);
signal(SIGTSTP, SIG_IGN); signal(SIGTSTP, SIG_IGN);
signal(SIGTTOU, SIG_IGN); signal(SIGTTOU, SIG_IGN);
@ -255,24 +259,25 @@ void os_setup_post(void)
int fd = 0; int fd = 0;
if (daemonize) { if (daemonize) {
uint8_t status = 0; uint8_t status = 0;
ssize_t len; ssize_t len;
again1: again1:
len = write(fds[1], &status, 1); len = write(fds[1], &status, 1);
if (len == -1 && (errno == EINTR)) if (len == -1 && (errno == EINTR)) {
goto again1; goto again1;
}
if (len != 1) if (len != 1) {
exit(1); exit(1);
}
if (chdir("/")) { if (chdir("/")) {
perror("not able to chdir to /"); perror("not able to chdir to /");
exit(1); exit(1);
} }
TFR(fd = qemu_open("/dev/null", O_RDWR)); TFR(fd = qemu_open("/dev/null", O_RDWR));
if (fd == -1) if (fd == -1) {
exit(1); exit(1);
}
} }
change_root(); change_root();