shaba/systemd
1
0
Fork 0
mirror of https://github.com/systemd/systemd.git synced 2024-11-08 11:27:32 +03:00
Code

core: modernize prepare_reexecute()

Browse Source
This commit is contained in:
Lennart Poettering 2015-09-23 01:11:30 +02:00
parent aa8aeac050
commit 48b9085914
1 changed files with 17 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

51
src/core/main.c
View File

@ -956,8 +956,8 @@ static int version(void) {
}
static int prepare_reexecute(Manager *m, FILE **_f, FDSet **_fds, bool switching_root) {
FILE *f = NULL;
FDSet *fds = NULL;
_cleanup_fdset_free_ FDSet *fds = NULL;
_cleanup_fclose_ FILE *f = NULL;
int r;
assert(m);
@ -965,56 +965,39 @@ static int prepare_reexecute(Manager *m, FILE **_f, FDSet **_fds, bool switching
assert(_fds);
r = manager_open_serialization(m, &f);
if (r < 0) {
log_error_errno(r, "Failed to create serialization file: %m");
goto fail;
}
if (r < 0)
return log_error_errno(r, "Failed to create serialization file: %m");
/* Make sure nothing is really destructed when we shut down */
m->n_reloading ++;
bus_manager_send_reloading(m, true);
fds = fdset_new();
if (!fds) {
r = -ENOMEM;
log_error_errno(r, "Failed to allocate fd set: %m");
goto fail;
}
if (!fds)
return log_oom();
r = manager_serialize(m, f, fds, switching_root);
if (r < 0) {
log_error_errno(r, "Failed to serialize state: %m");
goto fail;
}
if (r < 0)
return log_error_errno(r, "Failed to serialize state: %m");
if (fseeko(f, 0, SEEK_SET) < 0) {
log_error_errno(errno, "Failed to rewind serialization fd: %m");
goto fail;
}
if (fseeko(f, 0, SEEK_SET) == (off_t) -1)
return log_error_errno(errno, "Failed to rewind serialization fd: %m");
r = fd_cloexec(fileno(f), false);
if (r < 0) {
log_error_errno(r, "Failed to disable O_CLOEXEC for serialization: %m");
goto fail;
}
if (r < 0)
return log_error_errno(r, "Failed to disable O_CLOEXEC for serialization: %m");
r = fdset_cloexec(fds, false);
if (r < 0) {
log_error_errno(r, "Failed to disable O_CLOEXEC for serialization fds: %m");
goto fail;
}
if (r < 0)
return log_error_errno(r, "Failed to disable O_CLOEXEC for serialization fds: %m");
*_f = f;
*_fds = fds;
f = NULL;
fds = NULL;
return 0;
fail:
fdset_free(fds);
safe_fclose(f);
return r;
}
static int bump_rlimit_nofile(struct rlimit *saved_rlimit) {