diff options
Diffstat (limited to 'gnuradio-core/src/lib/omnithread/solaris.cc')
| -rw-r--r-- | gnuradio-core/src/lib/omnithread/solaris.cc | 615 |
1 files changed, 0 insertions, 615 deletions
diff --git a/gnuradio-core/src/lib/omnithread/solaris.cc b/gnuradio-core/src/lib/omnithread/solaris.cc deleted file mode 100644 index b0139d29df..0000000000 --- a/gnuradio-core/src/lib/omnithread/solaris.cc +++ /dev/null @@ -1,615 +0,0 @@ -// Package : omnithread -// omnithread/solaris.cc Created : 7/94 tjr -// -// Copyright (C) 1994-1999 AT&T Laboratories Cambridge -// -// This file is part of the omnithread library -// -// The omnithread library is free software; you can redistribute it and/or -// modify it under the terms of the GNU Library General Public -// License as published by the Free Software Foundation; either -// version 2 of the License, or (at your option) any later version. -// -// This library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -// Library General Public License for more details. -// -// You should have received a copy of the GNU Library General Public -// License along with this library; if not, write to the Free -// Software Foundation, Inc., 51 Franklin Street, Boston, MA -// 02110-1301, USA -// -// -// Implementation of OMNI thread abstraction for solaris threads. -// - -#include <stdlib.h> -#include <errno.h> -#include <omnithread.h> - -#define DB(x) // x -// #include <iostream> or #include <iostream.h> if DB is on. - -#define THROW_ERRORS(x) { int rc = (x); \ - if (rc != 0) throw omni_thread_fatal(rc); } - - - -/////////////////////////////////////////////////////////////////////////// -// -// Mutex -// -/////////////////////////////////////////////////////////////////////////// - - -omni_mutex::omni_mutex(void) -{ - THROW_ERRORS(mutex_init(&sol_mutex, USYNC_THREAD, 0)); -} - -omni_mutex::~omni_mutex(void) -{ - THROW_ERRORS(mutex_destroy(&sol_mutex)); -} - -void -omni_mutex::lock(void) -{ - THROW_ERRORS(mutex_lock(&sol_mutex)); -} - -void -omni_mutex::unlock(void) -{ - THROW_ERRORS(mutex_unlock(&sol_mutex)); -} - - - -/////////////////////////////////////////////////////////////////////////// -// -// Condition variable -// -/////////////////////////////////////////////////////////////////////////// - - -omni_condition::omni_condition(omni_mutex* m) : mutex(m) -{ - THROW_ERRORS(cond_init(&sol_cond, USYNC_THREAD, 0)); -} - -omni_condition::~omni_condition(void) -{ - THROW_ERRORS(cond_destroy(&sol_cond)); -} - -void -omni_condition::wait(void) -{ - THROW_ERRORS(cond_wait(&sol_cond, &mutex->sol_mutex)); -} - -int -omni_condition::timedwait(unsigned long secs, unsigned long nanosecs) -{ - timespec rqts = { secs, nanosecs }; - - again: - int rc = cond_timedwait(&sol_cond, &mutex->sol_mutex, &rqts); - - if (rc == 0) - return 1; - - if (rc == EINTR) - goto again; - - if (rc == ETIME) - return 0; - - throw omni_thread_fatal(rc); -} - -void -omni_condition::signal(void) -{ - THROW_ERRORS(cond_signal(&sol_cond)); -} - -void -omni_condition::broadcast(void) -{ - THROW_ERRORS(cond_broadcast(&sol_cond)); -} - - - -/////////////////////////////////////////////////////////////////////////// -// -// Counting semaphore -// -/////////////////////////////////////////////////////////////////////////// - - -omni_semaphore::omni_semaphore(unsigned int initial) -{ - THROW_ERRORS(sema_init(&sol_sem, initial, USYNC_THREAD, NULL)); -} - -omni_semaphore::~omni_semaphore(void) -{ - THROW_ERRORS(sema_destroy(&sol_sem)); -} - -void -omni_semaphore::wait(void) -{ - THROW_ERRORS(sema_wait(&sol_sem)); -} - -void -omni_semaphore::post(void) -{ - THROW_ERRORS(sema_post(&sol_sem)); -} - - - -/////////////////////////////////////////////////////////////////////////// -// -// Thread -// -/////////////////////////////////////////////////////////////////////////// - - -// -// Static variables -// - -int omni_thread::init_t::count = 0; - -omni_mutex* omni_thread::next_id_mutex; -int omni_thread::next_id = 0; - -static thread_key_t self_key; - -static size_t stack_size = 0; - -// -// Initialisation function (gets called before any user code). -// - -omni_thread::init_t::init_t(void) -{ - if (count++ != 0) // only do it once however many objects get created. - return; - - DB(cerr << "omni_thread::init: solaris implementation initialising\n"); - - THROW_ERRORS(thr_keycreate(&self_key, NULL)); - - next_id_mutex = new omni_mutex; - - // - // Create object for this (i.e. initial) thread. - // - - omni_thread* t = new omni_thread; - - t->_state = STATE_RUNNING; - - t->sol_thread = thr_self(); - - DB(cerr << "initial thread " << t->id() << " sol_thread " << t->sol_thread - << endl); - - THROW_ERRORS(thr_setspecific(self_key, (void*)t)); - - THROW_ERRORS(thr_setprio(t->sol_thread, sol_priority(PRIORITY_NORMAL))); -} - - -// -// Wrapper for thread creation. -// - -extern "C" void* -omni_thread_wrapper(void* ptr) -{ - omni_thread* me = (omni_thread*)ptr; - - DB(cerr << "omni_thread::wrapper: thread " << me->id() - << " started\n"); - - THROW_ERRORS(thr_setspecific(self_key, me)); - - // - // Now invoke the thread function with the given argument. - // - - if (me->fn_void != NULL) { - (*me->fn_void)(me->thread_arg); - omni_thread::exit(); - } - - if (me->fn_ret != NULL) { - void* return_value = (*me->fn_ret)(me->thread_arg); - omni_thread::exit(return_value); - } - - if (me->detached) { - me->run(me->thread_arg); - omni_thread::exit(); - } else { - void* return_value = me->run_undetached(me->thread_arg); - omni_thread::exit(return_value); - } - - // should never get here. - - return NULL; -} - - -// -// Constructors for omni_thread - set up the thread object but don't -// start it running. -// - -// construct a detached thread running a given function. - -omni_thread::omni_thread(void (*fn)(void*), void* arg, priority_t pri) -{ - common_constructor(arg, pri, 1); - fn_void = fn; - fn_ret = NULL; -} - -// construct an undetached thread running a given function. - -omni_thread::omni_thread(void* (*fn)(void*), void* arg, priority_t pri) -{ - common_constructor(arg, pri, 0); - fn_void = NULL; - fn_ret = fn; -} - -// construct a thread which will run either run() or run_undetached(). - -omni_thread::omni_thread(void* arg, priority_t pri) -{ - common_constructor(arg, pri, 1); - fn_void = NULL; - fn_ret = NULL; -} - -// common part of all constructors. - -void -omni_thread::common_constructor(void* arg, priority_t pri, int det) -{ - _state = STATE_NEW; - _priority = pri; - - next_id_mutex->lock(); - _id = next_id++; - next_id_mutex->unlock(); - - thread_arg = arg; - detached = det; // may be altered in start_undetached() - - _dummy = 0; - _values = 0; - _value_alloc = 0; - // sol_thread is set up in initialisation routine or start(). -} - - -// -// Destructor for omni_thread. -// - -omni_thread::~omni_thread(void) -{ - DB(cerr << "destructor called for thread " << id() << endl); - if (_values) { - for (key_t i=0; i < _value_alloc; i++) { - if (_values[i]) { - delete _values[i]; - } - } - delete [] _values; - } -} - - -// -// Start the thread -// - -void -omni_thread::start(void) -{ - long flags = 0; - - if (detached) - flags |= THR_DETACHED; - - omni_mutex_lock l(mutex); - - if (_state != STATE_NEW) - throw omni_thread_invalid(); - - THROW_ERRORS(thr_create(0, stack_size, omni_thread_wrapper, (void*)this, flags, - &sol_thread)); - - _state = STATE_RUNNING; - - THROW_ERRORS(thr_setprio(sol_thread, sol_priority(_priority))); -} - - -// -// Start a thread which will run the member function run_undetached(). -// - -void -omni_thread::start_undetached(void) -{ - if ((fn_void != NULL) || (fn_ret != NULL)) - throw omni_thread_invalid(); - - detached = 0; - start(); -} - - -// -// join - simply check error conditions & call thr_join. -// - -void -omni_thread::join(void** status) -{ - mutex.lock(); - - if ((_state != STATE_RUNNING) && (_state != STATE_TERMINATED)) { - mutex.unlock(); - throw omni_thread_invalid(); - } - - mutex.unlock(); - - if (this == self()) - throw omni_thread_invalid(); - - if (detached) - throw omni_thread_invalid(); - - DB(cerr << "omni_thread::join: doing thr_join\n"); - - THROW_ERRORS(thr_join(sol_thread, (thread_t *)NULL, status)); - - DB(cerr << "omni_thread::join: thr_join succeeded\n"); - - delete this; -} - - -// -// Change this thread's priority. -// - -void -omni_thread::set_priority(priority_t pri) -{ - omni_mutex_lock l(mutex); - - if (_state != STATE_RUNNING) - throw omni_thread_invalid(); - - _priority = pri; - - THROW_ERRORS(thr_setprio(sol_thread, sol_priority(pri))); -} - - -// -// create - construct a new thread object and start it running. Returns thread -// object if successful, null pointer if not. -// - -// detached version - -omni_thread* -omni_thread::create(void (*fn)(void*), void* arg, priority_t pri) -{ - omni_thread* t = new omni_thread(fn, arg, pri); - - t->start(); - - return t; -} - -// undetached version - -omni_thread* -omni_thread::create(void* (*fn)(void*), void* arg, priority_t pri) -{ - omni_thread* t = new omni_thread(fn, arg, pri); - - t->start(); - - return t; -} - - -// -// exit() _must_ lock the mutex even in the case of a detached thread. This is -// because a thread may run to completion before the thread that created it has -// had a chance to get out of start(). By locking the mutex we ensure that the -// creating thread must have reached the end of start() before we delete the -// thread object. Of course, once the call to start() returns, the user can -// still incorrectly refer to the thread object, but that's their problem. -// - -void -omni_thread::exit(void* return_value) -{ - omni_thread* me = self(); - - if (me) - { - me->mutex.lock(); - - me->_state = STATE_TERMINATED; - - me->mutex.unlock(); - - DB(cerr << "omni_thread::exit: thread " << me->id() << " detached " - << me->detached << " return value " << return_value << endl); - - if (me->detached) - delete me; - } - else - { - DB(cerr << "omni_thread::exit: called with a non-omnithread. Exit quietly." << endl); - } - - thr_exit(return_value); -} - - -omni_thread* -omni_thread::self(void) -{ - omni_thread* me; - - THROW_ERRORS(thr_getspecific(self_key, (void**)&me)); - - if (!me) { - // This thread is not created by omni_thread::start because it - // doesn't has a class omni_thread instance attached to its key. - DB(cerr << "omni_thread::self: called with a non-ominthread. NULL is returned." << endl); - } - - return me; -} - - -void -omni_thread::yield(void) -{ - thr_yield(); -} - - -void -omni_thread::sleep(unsigned long secs, unsigned long nanosecs) -{ - timespec rqts = { secs, nanosecs }; - timespec remain; - while (nanosleep(&rqts, &remain)) { - if (errno == EINTR) { - rqts.tv_sec = remain.tv_sec; - rqts.tv_nsec = remain.tv_nsec; - continue; - } - else - throw omni_thread_fatal(errno); - } -} - - -void -omni_thread::get_time(unsigned long* abs_sec, unsigned long* abs_nsec, - unsigned long rel_sec, unsigned long rel_nsec) -{ - timespec abs; - clock_gettime(CLOCK_REALTIME, &abs); - abs.tv_nsec += rel_nsec; - abs.tv_sec += rel_sec + abs.tv_nsec / 1000000000; - abs.tv_nsec = abs.tv_nsec % 1000000000; - *abs_sec = abs.tv_sec; - *abs_nsec = abs.tv_nsec; -} - - -int -omni_thread::sol_priority(priority_t pri) -{ - switch (pri) { - - case PRIORITY_LOW: - return 0; - - case PRIORITY_NORMAL: - return 1; - - case PRIORITY_HIGH: - return 2; - } - - throw omni_thread_invalid(); -} - - -void -omni_thread::stacksize(unsigned long sz) -{ - stack_size = sz; -} - -unsigned long -omni_thread::stacksize() -{ - return stack_size; -} - - -// -// Dummy thread -// - -#error This dummy thread code is not tested. It might work if you're lucky. - -class omni_thread_dummy : public omni_thread { -public: - inline omni_thread_dummy() : omni_thread() - { - _dummy = 1; - _state = STATE_RUNNING; - sol_thread = thr_self(); - THROW_ERRORS(thr_setspecific(self_key, (void*)this)); - } - inline ~omni_thread_dummy() - { - THROW_ERRORS(thr_setspecific(self_key, 0)); - } -}; - -omni_thread* -omni_thread::create_dummy() -{ - if (omni_thread::self()) - throw omni_thread_invalid(); - - return new omni_thread_dummy; -} - -void -omni_thread::release_dummy() -{ - omni_thread* self = omni_thread::self(); - if (!self || !self->_dummy) - throw omni_thread_invalid(); - - omni_thread_dummy* dummy = (omni_thread_dummy*)self; - delete dummy; -} - - -#define INSIDE_THREAD_IMPL_CC -#include "threaddata.cc" -#undef INSIDE_THREAD_IMPL_CC |