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authorHaru <haru@dotalux.com>2013-10-11 05:07:45 +0200
committerHaru <haru@dotalux.com>2013-10-26 12:46:46 +0200
commit44c33fda3614d588e6bf6cee1cf884e98f1531f0 (patch)
treeb617c00c97675668f3c3a8a44b4c966e39ed520c /src/common/random.c
parentd39918017d4416add066fb78ab7f23cb4436c614 (diff)
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Changed 'tick' variables to 64 bit
- This fixes an issue with timers that stop working after about 24-49 days when the tick overflows (note that this may happen much earlier than that, and at hard to predict times, on some systems) - Updated the RDTSC help message in the configure script to also warn users about issues with SpeedStep enabled systems. - On Windows, tick() still has a resolution of 10~15ms (or even as low as 100ms on some systems). A TODO comment (thanks, Ai4rei) was added for a follow-up patch, as I want this one to be as small as possible) - Note: on Windows versions earlier than 6.x (Vista, Server 2008), the tick overflow issue is NOT fixed, since they don't support the function used to retrieve a 64 bit tick. This isn't a big issue, since those platforms are already - or going soon to be - out of their extended support period, and it's already advisable to upgrade, for other reasons. If you're the unfortunate user of such a system, it is recommended that you reboot your machine at least once every 49 days for Hercules to work reliably. - Note: To clear some doubts, since I've already been asked, this has absolutely NOTHING to do with 32/64 bit CPUs or OSes. It's all about a variable's size, not the size of registers of your CPU, and your 32bit CPU will be able to handle this just fine. Signed-off-by: Haru <haru@dotalux.com>
Diffstat (limited to 'src/common/random.c')
-rw-r--r--src/common/random.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/src/common/random.c b/src/common/random.c
index 2f1b62934..e46c52cad 100644
--- a/src/common/random.c
+++ b/src/common/random.c
@@ -17,17 +17,17 @@
/// Initializes the random number generator with an appropriate seed.
void rnd_init(void)
{
- uint32 seed = timer->gettick();
- seed += (uint32)time(NULL);
+ unsigned long seed = (unsigned long)timer->gettick();
+ seed += (unsigned long)time(NULL);
#if defined(WIN32)
- seed += GetCurrentProcessId();
- seed += GetCurrentThreadId();
+ seed += (unsigned long)GetCurrentProcessId();
+ seed += (unsigned long)GetCurrentThreadId();
#else
#if defined(HAVE_GETPID)
- seed += (uint32)getpid();
+ seed += (unsigned long)getpid();
#endif // HAVE_GETPID
#if defined(HAVE_GETTID)
- seed += (uint32)gettid();
+ seed += (unsigned long)gettid();
#endif // HAVE_GETTID
#endif
init_genrand(seed);