1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/nsprpub/pr/src/cplus/rcthread.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,188 @@
1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +/* RCThread.cpp - C++ wrapper on NSPR */
1.10 +
1.11 +#include "rcthread.h"
1.12 +#include "rcinrval.h"
1.13 +
1.14 +#include <prmem.h>
1.15 +#include <prlog.h>
1.16 +#include <stdio.h>
1.17 +#include <prinit.h>
1.18 +
1.19 +static RCPrimordialThread *primordial = NULL;
1.20 +
1.21 +void nas_Root(void *arg)
1.22 +{
1.23 + RCThread *him = (RCThread*)arg;
1.24 + while (RCThread::ex_unstarted == him->execution)
1.25 + (void)PR_Sleep(PR_INTERVAL_NO_TIMEOUT); /* wait for Start() */
1.26 + him->RootFunction(); /* he gets a self reference */
1.27 + if (PR_UNJOINABLE_THREAD == PR_GetThreadState(him->identity))
1.28 + delete him;
1.29 +} /* nas_Root */
1.30 +
1.31 +RCThread::~RCThread() { }
1.32 +
1.33 +RCThread::RCThread(): RCBase() { }
1.34 +
1.35 +RCThread::RCThread(const RCThread&): RCBase()
1.36 +{
1.37 + PR_NOT_REACHED("Cannot call thread copy constructor");
1.38 +} /* RCThread::RCThread */
1.39 +
1.40 +RCThread::RCThread(
1.41 + RCThread::Scope scope, RCThread::State join, PRUint32 stackSize):
1.42 + RCBase()
1.43 +{
1.44 + execution = ex_unstarted;
1.45 + identity = PR_CreateThread(
1.46 + PR_USER_THREAD, nas_Root, this,
1.47 + PR_GetThreadPriority(PR_GetCurrentThread()),
1.48 + (PRThreadScope)scope, (PRThreadState)join, stackSize);
1.49 +} /* RCThread::RCThread */
1.50 +
1.51 +void RCThread::operator=(const RCThread&)
1.52 +{
1.53 + PR_NOT_REACHED("Cannot call thread assignment operator");
1.54 +} /* RCThread::operator= */
1.55 +
1.56 +
1.57 +PRStatus RCThread::Start()
1.58 +{
1.59 + PRStatus rv;
1.60 + /* This is an unsafe check, but not too critical */
1.61 + if (RCThread::ex_unstarted == execution)
1.62 + {
1.63 + execution = RCThread::ex_started;
1.64 + rv = PR_Interrupt(identity);
1.65 + PR_ASSERT(PR_SUCCESS == rv);
1.66 + }
1.67 + else
1.68 + {
1.69 + rv = PR_FAILURE;
1.70 + PR_SetError(PR_INVALID_STATE_ERROR, 0);
1.71 + }
1.72 + return rv;
1.73 +} /* RCThread::Start */
1.74 +
1.75 +PRStatus RCThread::Join()
1.76 +{
1.77 + PRStatus rv;
1.78 + if (RCThread::ex_unstarted == execution)
1.79 + {
1.80 + rv = PR_FAILURE;
1.81 + PR_SetError(PR_INVALID_STATE_ERROR, 0);
1.82 + }
1.83 + else rv = PR_JoinThread(identity);
1.84 + if (PR_SUCCESS == rv) delete this;
1.85 + return rv;
1.86 +} /* RCThread::Join */
1.87 +
1.88 +PRStatus RCThread::Interrupt()
1.89 +{
1.90 + PRStatus rv;
1.91 + if (RCThread::ex_unstarted == execution)
1.92 + {
1.93 + rv = PR_FAILURE;
1.94 + PR_SetError(PR_INVALID_STATE_ERROR, 0);
1.95 + }
1.96 + else rv = PR_Interrupt(identity);
1.97 + return rv;
1.98 +} /* RCThread::Interrupt */
1.99 +
1.100 +void RCThread::ClearInterrupt() { PR_ClearInterrupt(); }
1.101 +
1.102 +void RCThread::SetPriority(RCThread::Priority new_priority)
1.103 + { PR_SetThreadPriority(identity, (PRThreadPriority)new_priority); }
1.104 +
1.105 +PRThread *RCThread::Self()
1.106 + { return PR_GetCurrentThread(); }
1.107 +
1.108 +RCThread::Scope RCThread::GetScope() const
1.109 + { return (RCThread::Scope)PR_GetThreadScope(identity); }
1.110 +
1.111 +RCThread::State RCThread::GetState() const
1.112 + { return (RCThread::State)PR_GetThreadState(identity); }
1.113 +
1.114 +RCThread::Priority RCThread::GetPriority() const
1.115 + { return (RCThread::Priority)PR_GetThreadPriority(identity); }
1.116 +
1.117 +static void _rc_PDDestructor(RCThreadPrivateData* privateData)
1.118 +{
1.119 + PR_ASSERT(NULL != privateData);
1.120 + privateData->Release();
1.121 +}
1.122 +
1.123 +static PRThreadPrivateDTOR _tpd_dtor = (PRThreadPrivateDTOR)_rc_PDDestructor;
1.124 +
1.125 +PRStatus RCThread::NewPrivateIndex(PRUintn* index)
1.126 + { return PR_NewThreadPrivateIndex(index, _tpd_dtor); }
1.127 +
1.128 +PRStatus RCThread::SetPrivateData(PRUintn index)
1.129 + { return PR_SetThreadPrivate(index, NULL); }
1.130 +
1.131 +PRStatus RCThread::SetPrivateData(PRUintn index, RCThreadPrivateData* data)
1.132 +{
1.133 + return PR_SetThreadPrivate(index, data);
1.134 +}
1.135 +
1.136 +RCThreadPrivateData* RCThread::GetPrivateData(PRUintn index)
1.137 + { return (RCThreadPrivateData*)PR_GetThreadPrivate(index); }
1.138 +
1.139 +PRStatus RCThread::Sleep(const RCInterval& ticks)
1.140 + { PRIntervalTime tmo = ticks; return PR_Sleep(tmo); }
1.141 +
1.142 +RCPrimordialThread *RCThread::WrapPrimordialThread()
1.143 +{
1.144 + /*
1.145 + ** This needs to take more care in insuring that the thread
1.146 + ** being wrapped is really the primordial thread. This code
1.147 + ** is assuming that the caller is the primordial thread, and
1.148 + ** there's nothing to insure that.
1.149 + */
1.150 + if (NULL == primordial)
1.151 + {
1.152 + /* it doesn't have to be perfect */
1.153 + RCPrimordialThread *me = new RCPrimordialThread();
1.154 + PR_ASSERT(NULL != me);
1.155 + if (NULL == primordial)
1.156 + {
1.157 + primordial = me;
1.158 + me->execution = RCThread::ex_started;
1.159 + me->identity = PR_GetCurrentThread();
1.160 + }
1.161 + else delete me; /* somebody beat us to it */
1.162 + }
1.163 + return primordial;
1.164 +} /* RCThread::WrapPrimordialThread */
1.165 +
1.166 +RCPrimordialThread::RCPrimordialThread(): RCThread() { }
1.167 +
1.168 +RCPrimordialThread::~RCPrimordialThread() { }
1.169 +
1.170 +void RCPrimordialThread::RootFunction()
1.171 +{
1.172 + PR_NOT_REACHED("Primordial thread calling root function");
1.173 +} /* RCPrimordialThread::RootFunction */
1.174 +
1.175 +PRStatus RCPrimordialThread::Cleanup() { return PR_Cleanup(); }
1.176 +
1.177 +PRStatus RCPrimordialThread::SetVirtualProcessors(PRIntn count)
1.178 +{
1.179 + PR_SetConcurrency(count);
1.180 + return PR_SUCCESS;
1.181 +} /* SetVirutalProcessors */
1.182 +
1.183 +RCThreadPrivateData::RCThreadPrivateData() { }
1.184 +
1.185 +RCThreadPrivateData::RCThreadPrivateData(
1.186 + const RCThreadPrivateData& him) { }
1.187 +
1.188 +RCThreadPrivateData::~RCThreadPrivateData() { }
1.189 +
1.190 +/* RCThread.c */
1.191 +
