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Clean up threading

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* Rename everything.
    * Strip J prefix.
    * Change UpperCamelCase functions to lowerCamelCase.
  * Remove global (!) semaphore count mutex on OSX.
  * Remove semaphore count getter (unused, unsafe, depended on internal
    API functions on Windows, and used a hack on OSX).
  * Add `Atomic<type>`.
  * Make `Thread` handle thread names.
  * Add support for C++11 multi-threading.
  * Combine pthread and win32 sources.
  * Remove `ThreadStarted` (unused, unneeded).
  * Move some includes from the headers to the sources.
  * Move all of `Event` into its header (allows inlining with no new includes).
  * Make `Event` use `Semaphore` (except on Windows).
  * Move some porting functions into `Thread`.
  * Integrate logging with `Thread`.
  * Add threading test.
This commit is contained in:
ShadowNinja 2015-04-07 06:13:12 -04:00
parent 6a1047d8c1
commit e4bff8be94
77 changed files with 1594 additions and 2046 deletions
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124
src/porting.cpp
View file

@ -129,130 +129,6 @@ void signal_handler_init(void)
#endif
/*
Multithreading support
*/
int getNumberOfProcessors()
{
#if defined(_SC_NPROCESSORS_ONLN)
return sysconf(_SC_NPROCESSORS_ONLN);
#elif defined(__FreeBSD__) || defined(__APPLE__)
unsigned int len, count;
len = sizeof(count);
return sysctlbyname("hw.ncpu", &count, &len, NULL, 0);
#elif defined(_GNU_SOURCE)
return get_nprocs();
#elif defined(_WIN32)
SYSTEM_INFO sysinfo;
GetSystemInfo(&sysinfo);
return sysinfo.dwNumberOfProcessors;
#elif defined(PTW32_VERSION) || defined(__hpux)
return pthread_num_processors_np();
#else
return 1;
#endif
}
#ifndef __ANDROID__
bool threadBindToProcessor(threadid_t tid, int pnumber)
{
#if defined(_WIN32)
HANDLE hThread = OpenThread(THREAD_ALL_ACCESS, 0, tid);
if (!hThread)
return false;
bool success = SetThreadAffinityMask(hThread, 1 << pnumber) != 0;
CloseHandle(hThread);
return success;
#elif (defined(__FreeBSD__) && (__FreeBSD_version >= 702106)) \
|| defined(__linux) || defined(linux)
cpu_set_t cpuset;
CPU_ZERO(&cpuset);
CPU_SET(pnumber, &cpuset);
return pthread_setaffinity_np(tid, sizeof(cpuset), &cpuset) == 0;
#elif defined(__sun) || defined(sun)
return processor_bind(P_LWPID, MAKE_LWPID_PTHREAD(tid),
pnumber, NULL) == 0;
#elif defined(_AIX)
return bindprocessor(BINDTHREAD, (tid_t)tid, pnumber) == 0;
#elif defined(__hpux) || defined(hpux)
pthread_spu_t answer;
return pthread_processor_bind_np(PTHREAD_BIND_ADVISORY_NP,
&answer, pnumber, tid) == 0;
#elif defined(__APPLE__)
struct thread_affinity_policy tapol;
thread_port_t threadport = pthread_mach_thread_np(tid);
tapol.affinity_tag = pnumber + 1;
return thread_policy_set(threadport, THREAD_AFFINITY_POLICY,
(thread_policy_t)&tapol, THREAD_AFFINITY_POLICY_COUNT) == KERN_SUCCESS;
#else
return false;
#endif
}
#endif
bool threadSetPriority(threadid_t tid, int prio)
{
#if defined(_WIN32)
HANDLE hThread = OpenThread(THREAD_ALL_ACCESS, 0, tid);
if (!hThread)
return false;
bool success = SetThreadPriority(hThread, prio) != 0;
CloseHandle(hThread);
return success;
#else
struct sched_param sparam;
int policy;
if (pthread_getschedparam(tid, &policy, &sparam) != 0)
return false;
int min = sched_get_priority_min(policy);
int max = sched_get_priority_max(policy);
sparam.sched_priority = min + prio * (max - min) / THREAD_PRIORITY_HIGHEST;
return pthread_setschedparam(tid, policy, &sparam) == 0;
#endif
}
/*
Path mangler
*/