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-rw-r--r--attic/muse_qt4_evolution/muse/thread.cpp354
1 files changed, 0 insertions, 354 deletions
diff --git a/attic/muse_qt4_evolution/muse/thread.cpp b/attic/muse_qt4_evolution/muse/thread.cpp
deleted file mode 100644
index 8291613b..00000000
--- a/attic/muse_qt4_evolution/muse/thread.cpp
+++ /dev/null
@@ -1,354 +0,0 @@
-//=============================================================================
-// MusE
-// Linux Music Editor
-// $Id:$
-//
-// Copyright (C) 2002-2006 by Werner Schweer and others
-//
-// This program is free software; you can redistribute it and/or modify
-// it under the terms of the GNU General Public License version 2.
-//
-// This program 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 General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-//=============================================================================
-
-#include <poll.h>
-#include <sys/mman.h>
-#include <fcntl.h>
-
-#include "thread.h"
-#include "globals.h"
-#include "errno.h"
-
-//---------------------------------------------------------
-// Thread
-//---------------------------------------------------------
-
-Thread::~Thread()
- {
- }
-
-//---------------------------------------------------------
-// serverloop
-//---------------------------------------------------------
-
-static void* loop(void* mops)
- {
- Thread* t = (Thread*) mops;
- t->loop();
- return 0;
- }
-
-//---------------------------------------------------------
-// start
-//---------------------------------------------------------
-
-void Thread::start(int prio, void* ptr)
- {
- userPtr = ptr;
- pthread_attr_t* attributes = 0;
-
- realTimePriority = prio;
- if (realTimePriority) {
- attributes = (pthread_attr_t*) malloc(sizeof(pthread_attr_t));
- pthread_attr_init(attributes);
-
- if (pthread_attr_setschedpolicy(attributes, SCHED_FIFO)) {
- printf("cannot set FIFO scheduling class for RT thread\n");
- }
- if (pthread_attr_setscope (attributes, PTHREAD_SCOPE_SYSTEM)) {
- printf("Cannot set scheduling scope for RT thread\n");
- }
- if (pthread_attr_setinheritsched(attributes, PTHREAD_EXPLICIT_SCHED)) {
- printf("Cannot set setinheritsched for RT thread\n");
- }
-
- struct sched_param rt_param;
- memset(&rt_param, 0, sizeof(rt_param));
- rt_param.sched_priority = realTimePriority;
- if (pthread_attr_setschedparam (attributes, &rt_param)) {
- printf("Cannot set scheduling priority %d for RT thread (%s)\n",
- realTimePriority, strerror(errno));
- }
- }
-
- int rv;
- if ((rv = pthread_create(&thread, attributes, ::loop, this))) {
- fprintf(stderr, "creating thread <%s> failed: %s\n",
- _name, strerror(rv));
- thread = 0;
- }
- }
-
-//---------------------------------------------------------
-// stop
-//---------------------------------------------------------
-
-void Thread::stop(bool force)
- {
- if (thread == 0)
- return;
- if (force) {
- pthread_cancel(thread);
- threadStop();
- }
- _running = false;
- if (pthread_join(thread, 0)) {
- // perror("Failed to join sequencer thread");
- }
- }
-
-//---------------------------------------------------------
-// Thread
-// prio = 0 no realtime scheduling
-//---------------------------------------------------------
-
-Thread::Thread(const char* s)
- {
- userPtr = 0;
- _name = s;
- realTimePriority = 0;
- pfd = 0;
- npfd = 0;
- maxpfd = 0;
- _running = false;
- _pollWait = -1;
- thread = 0;
- sendSerialNo = 0x00a5a500;
-
- // create message channels
- int filedes[2]; // 0 - reading 1 - writing
- if (pipe(filedes) == -1) {
- perror("thread:creating pipe4");
- exit(-1);
- }
- toThreadFdr = filedes[0];
- toThreadFdw = filedes[1];
- if (fcntl(toThreadFdw, F_SETFL, O_NONBLOCK) == -1)
- perror("set pipe nonblocking\n");
-
- if (pipe(filedes) == -1) {
- perror("thread: creating pipe5");
- exit(-1);
- }
- fromThreadFdr = filedes[0];
- fromThreadFdw = filedes[1];
- if (fcntl(fromThreadFdw, F_SETFL, O_NONBLOCK) == -1)
- perror("set pipe nonblocking\n");
- }
-
-//---------------------------------------------------------
-// addPollFd
-//---------------------------------------------------------
-
-void Thread::addPollFd(int fd, int action, void (*handler)(void*,void*), void* p, void* q)
- {
- if (fd == -1)
- return;
- for (iPoll i = plist.begin(); i != plist.end(); ++i) {
- if ((i->fd == fd) && (i->action == action))
- return;
- }
-
- plist.push_back(Poll(fd, action, handler, p, q));
-
- if (npfd == maxpfd) {
- int n = (maxpfd == 0) ? 4 : maxpfd * 2;
- //TODO: delete old pfd
- pfd = new struct pollfd[n];
- maxpfd = n;
- }
- ++npfd;
- int idx = 0;
- for (iPoll i = plist.begin(); i != plist.end(); ++i, ++idx) {
- pfd[idx].fd = i->fd;
- pfd[idx].events = i->action;
- }
- }
-
-//---------------------------------------------------------
-// removePollFd
-//---------------------------------------------------------
-
-void Thread::removePollFd(int fd, int action)
- {
- for (iPoll i = plist.begin(); i != plist.end(); ++i) {
- if (i->fd == fd && i->action == action) {
- plist.erase(i);
- --npfd;
- break;
- }
- }
- int idx = 0;
- for (iPoll i = plist.begin(); i != plist.end(); ++i, ++idx) {
- pfd[idx].fd = i->fd;
- pfd[idx].events = i->action;
- }
- }
-
-//---------------------------------------------------------
-// loop
-//---------------------------------------------------------
-
-void Thread::loop()
- {
- if (!debugMode) {
- if (mlockall(MCL_CURRENT | MCL_FUTURE))
- perror("WARNING: Cannot lock memory:");
- }
-#ifdef __APPLE__
-#define BIG_ENOUGH_STACK (1024*256*1)
-#else
-#define BIG_ENOUGH_STACK (1024*1024*1)
-#endif
- char buf[BIG_ENOUGH_STACK];
- for (int i = 0; i < BIG_ENOUGH_STACK; i++)
- buf[i] = i;
-#undef BIG_ENOUGH_STACK
-
- pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, 0);
- pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, 0);
-
- int policy;
- /*if ((policy = sched_getscheduler (0)) < 0) {
- printf("Thread: Cannot get current client scheduler: %s\n", strerror(errno));
- }
-*/
- if (debugMsg)
- printf("Thread <%s, id %p> has %s priority %d\n",
- _name, (void *)pthread_self(), policy == SCHED_FIFO ? "SCHED_FIFO" : "SCHED_OTHER",
- realTimePriority);
-
- _running = true;
-
- threadStart(userPtr);
- while (_running) {
- if (debugMode) // DEBUG
- _pollWait = 10; // ms
- else
- _pollWait = -1;
-
- int n = poll(pfd, npfd, _pollWait);
- if (n < 0) {
- if (errno == EINTR)
- continue;
- fprintf(stderr, "poll failed: %s\n", strerror(errno));
- exit(-1);
- }
- if (n == 0) { // timeout
- defaultTick();
- continue;
- }
- struct pollfd* p = &pfd[0];
- int i = 0;
- for (iPoll ip = plist.begin(); ip != plist.end(); ++ip, ++p, ++i) {
- if (ip->action & p->revents) {
- (ip->handler)(ip->param1, ip->param2);
- break;
- }
- }
- }
- threadStop();
- }
-
-//---------------------------------------------------------
-// sendMsg
-// send request from gui to thread
-// wait until request is processed
-//---------------------------------------------------------
-
-extern const char* seqMsgList[];
-
-bool Thread::sendMsg(const ThreadMsg* m)
- {
-// fprintf(stderr, "<%s> self: %p sendMsg %d id %s running %d\n",
-// _name,
-// pthread_self(), sendSerialNo, seqMsgList[m->id], _running);
-
- m->serialNo = sendSerialNo;
- if (_running) {
- int rv = write(toThreadFdw, &m, sizeof(ThreadMsg*));
- if (rv != sizeof(ThreadMsg*)) {
- perror("Thread::sendMessage(): write pipe failed");
- return true;
- }
-
- // wait for thread to finish operation
- int c;
- rv = read(fromThreadFdr, &c, sizeof(c));
- if (rv != sizeof(c)) {
- perror("Thread::sendMessage(): read pipe failed");
- return true;
- }
- if (c != sendSerialNo)
- fprintf(stderr, "%p Thread:sendMsg() serial No mismatch %d - %d\n",
- this, c, sendSerialNo);
- }
- else {
- // if thread is not running (during initialization)
- // process commands directly:
- processMsg(m);
- }
- ++sendSerialNo;
- return false;
- }
-
-//---------------------------------------------------------
-// sendMsg1
-// send request from gui to thread
-// do __not__ wait until request is processed
-//---------------------------------------------------------
-
-bool Thread::sendMsg1(const void* m, int n)
- {
- int rv = write(toThreadFdw, m, n);
- if (rv != n) {
- perror("Thread::sendMessage1(): write pipe failed");
- return true;
- }
- return false;
- }
-
-//---------------------------------------------------------
-// readMsg
-//---------------------------------------------------------
-
-void Thread::readMsg()
- {
- ThreadMsg* p;
- if (read(toThreadFdr, &p, sizeof(p)) != sizeof(p)) {
- perror("Thread::readMsg(): read pipe failed");
- exit(-1);
- }
-// fprintf(stderr, "%p read msg %d %s\n", this, p->serialNo, seqMsgList[p->id]);
-
- processMsg(p);
- int c = p->serialNo;
- int rv = write(fromThreadFdw, &c, sizeof(c));
- if (rv != sizeof(c))
- perror("Thread::readMsg(): write pipe failed");
- }
-
-//---------------------------------------------------------
-// readMsg
-// sequencer reads one gui message
-//---------------------------------------------------------
-
-void Thread::readMsg1(int size)
- {
- char buffer[size];
- int n = read(toThreadFdr, buffer, size);
- if (n != size) {
- fprintf(stderr, "Thread::readMessage1(): read pipe failed, get %d, expected %d: %s\n",
- n, size, strerror(errno));
- exit(-1);
- }
- processMsg1(buffer);
- }
-
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