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This commit is contained in:
Martin Sustrik
2009-08-27 10:54:28 +02:00
parent aacdb7a454
commit 99c5d92836
21 changed files with 680 additions and 50 deletions
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26
src/app_thread.cpp
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@@ -77,7 +77,7 @@ bool zmq::app_thread_t::make_current ()
return true;
}
void zmq::app_thread_t::process_commands (bool block_)
void zmq::app_thread_t::process_commands (bool block_, bool throttle_)
{
ypollset_t::signals_t signals;
if (block_)
@@ -91,24 +91,26 @@ void zmq::app_thread_t::process_commands (bool block_)
// depending on CPU speed: It's ~1ms on 3GHz CPU, ~2ms on 1.5GHz CPU
// etc. The optimisation makes sense only on platforms where getting
// a timestamp is a very cheap operation (tens of nanoseconds).
if (throttle_) {
// Get timestamp counter.
// Get timestamp counter.
#if defined __GNUC__
uint32_t low;
uint32_t high;
__asm__ volatile ("rdtsc" : "=a" (low), "=d" (high));
uint64_t current_time = (uint64_t) high << 32 | low;
uint32_t low;
uint32_t high;
__asm__ volatile ("rdtsc" : "=a" (low), "=d" (high));
uint64_t current_time = (uint64_t) high << 32 | low;
#elif defined _MSC_VER
uint64_t current_time = __rdtsc ();
uint64_t current_time = __rdtsc ();
#else
#error
#endif
// Check whether certain time have elapsed since last command
// processing.
if (current_time - last_processing_time <= max_command_delay)
return;
last_processing_time = current_time;
// Check whether certain time have elapsed since last command
// processing.
if (current_time - last_processing_time <= max_command_delay)
return;
last_processing_time = current_time;
}
#endif
// Check whether there are any commands pending for this thread.