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bus: parse unit/user unit/session from cgroup path

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This commit is contained in:
Lennart Poettering 2013-04-16 04:54:46 +02:00
parent 4ff49cb630
commit d8d3d8a781
4 changed files with 85 additions and 0 deletions
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2
TODO
View File

@ -38,6 +38,8 @@ Fedora 19:
Features:
* move session owner code from sd-login.c to cgroup-util.c
* decimal_str_max() should become a type-safe macro
* show-cgroup.c uses its own ulog10 implementation

76
src/libsystemd-bus/bus-message.c
View File

@ -26,6 +26,7 @@
#include "utf8.h"
#include "strv.h"
#include "time-util.h"
#include "cgroup-util.h"
#include "sd-bus.h"
#include "bus-message.h"
@ -76,6 +77,10 @@ static void message_free(sd_bus_message *m) {
free(m->root_container.signature);
free(m->peeked_signature);
free(m->unit);
free(m->user_unit);
free(m->session);
free(m);
}
@ -796,6 +801,66 @@ int sd_bus_message_get_cgroup(sd_bus_message *m, const char **ret) {
return 0;
}
int sd_bus_message_get_unit(sd_bus_message *m, const char **ret) {
int r;
if (!m)
return -EINVAL;
if (!ret)
return -EINVAL;
if (!m->cgroup)
return -ESRCH;
if (!m->unit) {
r = cg_path_get_unit(m->cgroup, &m->unit);
if (r < 0)
return r;
}
*ret = m->unit;
return 0;
}
int sd_bus_message_get_user_unit(sd_bus_message *m, const char **ret) {
int r;
if (!m)
return -EINVAL;
if (!ret)
return -EINVAL;
if (!m->cgroup)
return -ESRCH;
if (!m->user_unit) {
r = cg_path_get_user_unit(m->cgroup, &m->user_unit);
if (r < 0)
return r;
}
*ret = m->user_unit;
return 0;
}
int sd_bus_message_get_session(sd_bus_message *m, const char **ret) {
int r;
if (!m)
return -EINVAL;
if (!ret)
return -EINVAL;
if (!m->cgroup)
return -ESRCH;
if (!m->session) {
r = cg_path_get_session(m->cgroup, &m->session);
if (r < 0)
return r;
}
*ret = m->session;
return 0;
}
int sd_bus_message_get_cmdline(sd_bus_message *m, char ***cmdline) {
size_t n, i;
const char *p;
@ -3004,6 +3069,7 @@ int sd_bus_message_set_destination(sd_bus_message *m, const char *destination) {
}
int bus_message_dump(sd_bus_message *m) {
const char *u = NULL, *uu = NULL, *s = NULL;
char **cmdline = NULL;
unsigned level = 1;
int r;
@ -3074,6 +3140,16 @@ int bus_message_dump(sd_bus_message *m) {
if (m->cgroup)
printf("\tcgroup=[%s]\n", m->cgroup);
sd_bus_message_get_unit(m, &u);
if (u)
printf("\tunit=[%s]\n", u);
sd_bus_message_get_user_unit(m, &uu);
if (uu)
printf("\tuser_unit=[%s]\n", uu);
sd_bus_message_get_session(m, &s);
if (s)
printf("\tsession=[%s]\n", s);
if (sd_bus_message_get_cmdline(m, &cmdline) >= 0) {
char **c;

4
src/libsystemd-bus/bus-message.h
View File

@ -115,6 +115,10 @@ struct sd_bus_message {
const char *cmdline;
size_t cmdline_length;
char **cmdline_array;
char *session;
char *unit;
char *user_unit;
};
#define BUS_MESSAGE_NEED_BSWAP(m) ((m)->header->endian != SD_BUS_NATIVE_ENDIAN)

3
src/systemd/sd-bus.h
View File

@ -136,6 +136,9 @@ int sd_bus_message_get_tid_comm(sd_bus_message *m, const char **r);
int sd_bus_message_get_exe(sd_bus_message *m, const char **r);
int sd_bus_message_get_cgroup(sd_bus_message *m, const char **r);
int sd_bus_message_get_cmdline(sd_bus_message *m, char ***cmdline);
int sd_bus_message_get_unit(sd_bus_message *m, const char **unit);
int sd_bus_message_get_user_unit(sd_bus_message *m, const char **unit);
int sd_bus_message_get_session(sd_bus_message *m, const char **session);
int sd_bus_message_is_signal(sd_bus_message *m, const char *interface, const char *member);
int sd_bus_message_is_method_call(sd_bus_message *m, const char *interface, const char *member);