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authornormal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2014-02-24 03:38:14 +0000
committernormal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2014-02-24 03:38:14 +0000
commitb2f3063cae5cd5997a89717d91fdec06c5041620 (patch)
tree659206e5c7382f73ca808444e4c5d03ef11f6b43 /timev.h
parentba5ed845b30c81fbf92c052b83f54198cd272bbd (diff)
time: rearrange+pack vtm and time_object structs
struct time_object shrinks from 88 to 46 bytes on my 64-bit system. * configure.in: use -Wno-packed-bitfield-compat for GCC 4.4+ use __attribute__((packed)) if available * timev.h: shrink and pack struct vtm * time.c: pack struct time_object and adjust/introduce helpers [ruby-core:60794] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45155 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'timev.h')
-rw-r--r--timev.h18
1 files changed, 9 insertions, 9 deletions
diff --git a/timev.h b/timev.h
index 983ef66..eda7023 100644
--- a/timev.h
+++ b/timev.h
@@ -3,18 +3,18 @@
struct vtm {
VALUE year; /* 2000 for example. Integer. */
- int mon; /* 1..12 */
- int mday; /* 1..31 */
- int hour; /* 0..23 */
- int min; /* 0..59 */
- int sec; /* 0..60 */
VALUE subsecx; /* 0 <= subsecx < TIME_SCALE. possibly Rational. */
VALUE utc_offset; /* -3600 as -01:00 for example. possibly Rational. */
- int wday; /* 0:Sunday, 1:Monday, ..., 6:Saturday */
- int yday; /* 1..366 */
- int isdst; /* 0:StandardTime 1:DayLightSavingTime */
const char *zone; /* "JST", "EST", "EDT", etc. */
-};
+ uint16_t yday:9; /* 1..366 */
+ uint8_t mon:4; /* 1..12 */
+ uint8_t mday:5; /* 1..31 */
+ uint8_t hour:5; /* 0..23 */
+ uint8_t min:6; /* 0..59 */
+ uint8_t sec:6; /* 0..60 */
+ uint8_t wday:3; /* 0:Sunday, 1:Monday, ..., 6:Saturday 7:init */
+ uint8_t isdst:2; /* 0:StandardTime 1:DayLightSavingTime 3:init */
+} PACKED_STRUCT;
#define TIME_SCALE 1000000000