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authorGravatar Tomaz Canabrava <tomaz.canabrava@intel.com>2015-09-02 20:52:34 -0300
committerGravatar Dirk Hohndel <dirk@hohndel.org>2015-10-30 10:36:48 -0700
commit4c0156e3d51b389db8eccc3fa3da4b8f248f9b13 (patch)
tree966868d29150fdba13a5a56fb4305bc432ec7a72 /time.c
parenta0798214231c652ac6142228f5ddfc4b65c921f8 (diff)
downloadsubsurface-4c0156e3d51b389db8eccc3fa3da4b8f248f9b13.tar.gz
Move all core-functionality to subsurface-core
And adapt a new CMakeLists.txt file for it. On the way I've also found out that we where double-compilling a few files. I've also set the subsurface-core as a include_path but that was just to reduce the noise on this commit, since I plan to remove it from the include path to make it obligatory to specify something like include "subsurface-core/dive.h" for the header files. Since the app is growing quite a bit we ended up having a few different files with almost same name that did similar things, I want to kill that (for instance Dive.h, dive.h, PrintDive.h and such). Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Diffstat (limited to 'time.c')
-rw-r--r--time.c98
1 files changed, 0 insertions, 98 deletions
diff --git a/time.c b/time.c
deleted file mode 100644
index b658954bc..000000000
--- a/time.c
+++ /dev/null
@@ -1,98 +0,0 @@
-#include <string.h>
-#include "dive.h"
-
-/*
- * Convert 64-bit timestamp to 'struct tm' in UTC.
- *
- * On 32-bit machines, only do 64-bit arithmetic for the seconds
- * part, after that we do everything in 'long'. 64-bit divides
- * are unnecessary once you're counting minutes (32-bit minutes:
- * 8000+ years).
- */
-void utc_mkdate(timestamp_t timestamp, struct tm *tm)
-{
- static const int mdays[] = {
- 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31,
- };
- static const int mdays_leap[] = {
- 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31,
- };
- unsigned long val;
- unsigned int leapyears;
- int m;
- const int *mp;
-
- memset(tm, 0, sizeof(*tm));
-
- /* seconds since 1970 -> minutes since 1970 */
- tm->tm_sec = timestamp % 60;
- val = timestamp /= 60;
-
- /* Do the simple stuff */
- tm->tm_min = val % 60;
- val /= 60;
- tm->tm_hour = val % 24;
- val /= 24;
-
- /* Jan 1, 1970 was a Thursday (tm_wday=4) */
- tm->tm_wday = (val + 4) % 7;
-
- /*
- * Now we're in "days since Jan 1, 1970". To make things easier,
- * let's make it "days since Jan 1, 1968", since that's a leap-year
- */
- val += 365 + 366;
-
- /* This only works up until 2099 (2100 isn't a leap-year) */
- leapyears = val / (365 * 4 + 1);
- val %= (365 * 4 + 1);
- tm->tm_year = 68 + leapyears * 4;
-
- /* Handle the leap-year itself */
- mp = mdays_leap;
- if (val > 365) {
- tm->tm_year++;
- val -= 366;
- tm->tm_year += val / 365;
- val %= 365;
- mp = mdays;
- }
-
- for (m = 0; m < 12; m++) {
- if (val < *mp)
- break;
- val -= *mp++;
- }
- tm->tm_mday = val + 1;
- tm->tm_mon = m;
-}
-
-timestamp_t utc_mktime(struct tm *tm)
-{
- static const int mdays[] = {
- 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
- };
- int year = tm->tm_year;
- int month = tm->tm_mon;
- int day = tm->tm_mday;
-
- /* First normalize relative to 1900 */
- if (year < 70)
- year += 100;
- else if (year > 1900)
- year -= 1900;
-
- /* Normalized to Jan 1, 1970: unix time */
- year -= 70;
-
- if (year < 0 || year > 129) /* algo only works for 1970-2099 */
- return -1;
- if (month < 0 || month > 11) /* array bounds */
- return -1;
- if (month < 2 || (year + 2) % 4)
- day--;
- if (tm->tm_hour < 0 || tm->tm_min < 0 || tm->tm_sec < 0)
- return -1;
- return (year * 365 + (year + 1) / 4 + mdays[month] + day) * 24 * 60 * 60UL +
- tm->tm_hour * 60 * 60 + tm->tm_min * 60 + tm->tm_sec;
-}