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| author | Yu Watanabe <watanabe.yu+github@gmail.com> | 2018-01-02 18:30:16 +0100 |
|---|---|---|
| committer | Yu Watanabe <watanabe.yu+github@gmail.com> | 2018-01-02 18:33:16 +0100 |
| commit | 681ae88e06f2acbfb3b7adf681a681c32c1d5843 (patch) | |
| tree | 4e05ca3755ab51e24ff94a37ccb3f082019b1d6a /src/core/dbus-util.h | |
| parent | dbus-cgroup: add missing space (diff) | |
| download | systemd-681ae88e06f2acbfb3b7adf681a681c32c1d5843.tar.xz systemd-681ae88e06f2acbfb3b7adf681a681c32c1d5843.zip | |
dbus-cgroup: simplify bus_cgroup_set_property()
Diffstat (limited to 'src/core/dbus-util.h')
| -rw-r--r-- | src/core/dbus-util.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/src/core/dbus-util.h b/src/core/dbus-util.h index bef8bc35e1..8260298577 100644 --- a/src/core/dbus-util.h +++ b/src/core/dbus-util.h @@ -256,6 +256,86 @@ } \ struct __useless_struct_to_allow_trailing_semicolon__ +#define BUS_DEFINE_SET_CGROUP_WEIGHT(function, mask, check, val, str) \ + int bus_cgroup_set_##function( \ + Unit *u, \ + const char *name, \ + uint64_t *p, \ + sd_bus_message *message, \ + UnitWriteFlags flags, \ + sd_bus_error *error) { \ + \ + uint64_t v; \ + int r; \ + \ + assert(p); \ + \ + r = sd_bus_message_read(message, "t", &v); \ + if (r < 0) \ + return r; \ + \ + if (!check(v)) \ + return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, \ + "Value specified in %s is out of range", name); \ + \ + if (!UNIT_WRITE_FLAGS_NOOP(flags)) { \ + *p = v; \ + unit_invalidate_cgroup(u, (mask)); \ + \ + if (v == (val)) \ + unit_write_settingf(u, flags, name, \ + "%s=" str, name); \ + else \ + unit_write_settingf(u, flags, name, \ + "%s=%" PRIu64, name, v); \ + } \ + \ + return 1; \ + } \ + struct __useless_struct_to_allow_trailing_semicolon__ + +#define BUS_DEFINE_SET_CGROUP_SCALE(function, mask, scale) \ + int bus_cgroup_set_##function##_scale( \ + Unit *u, \ + const char *name, \ + uint64_t *p, \ + sd_bus_message *message, \ + UnitWriteFlags flags, \ + sd_bus_error *error) { \ + \ + uint64_t v; \ + uint32_t raw; \ + int r; \ + \ + assert(p); \ + \ + r = sd_bus_message_read(message, "u", &raw); \ + if (r < 0) \ + return r; \ + \ + v = scale(raw, UINT32_MAX); \ + if (v <= 0 || v >= UINT64_MAX) \ + return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, \ + "Value specified in %s is out of range", name); \ + \ + if (!UNIT_WRITE_FLAGS_NOOP(flags)) { \ + const char *e; \ + \ + *p = v; \ + unit_invalidate_cgroup(u, (mask)); \ + \ + /* Chop off suffix */ \ + assert_se(e = endswith(name, "Scale")); \ + name = strndupa(name, e - name); \ + \ + unit_write_settingf(u, flags, name, "%s=%" PRIu32 "%%", name, \ + (uint32_t) (DIV_ROUND_UP((uint64_t) raw * 100U, (uint64_t) UINT32_MAX))); \ + } \ + \ + return 1; \ + } \ + struct __useless_struct_to_allow_trailing_semicolon__ + int bus_set_transient_mode_t(Unit *u, const char *name, mode_t *p, sd_bus_message *message, UnitWriteFlags flags, sd_bus_error *error); int bus_set_transient_unsigned(Unit *u, const char *name, unsigned *p, sd_bus_message *message, UnitWriteFlags flags, sd_bus_error *error); int bus_set_transient_user(Unit *u, const char *name, char **p, sd_bus_message *message, UnitWriteFlags flags, sd_bus_error *error); |