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Version 3.1

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Gary Scavone
2013-09-25 14:44:17 +02:00
committed by Stephen Sinclair
parent 868787a5f9
commit 4b6500d3de
140 changed files with 5171 additions and 632 deletions
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79
effects/threads.cpp
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@@ -1,26 +1,28 @@
// Thread functions for use with syntmono.
//
// Gary P. Scavone, 1999.
// No mutexes are currently being used when accessing
// the global variables shared between these threads
// and the main() routine. In a single processor
// environment, no problems have resulted from such data
// sharing. However, if STK is to be run on a true parallel
// processing platform, it is likely that mutexes will be
// necessary. While the mutex calls are simple to code, I
// am trying to keep the code as generic as possible. A
// quick investigation of threads under Windoze indicates
// that mutex functionality is not available, at least with
// the standard libraries.
//
// Gary P. Scavone, 2000.
#include "threads.h"
#if defined(__STK_REALTIME_)
#define SERVICE_PORT 2001 // Socket Port ID number
// Default STK socket port ID number
#define SERVICE_PORT 2001
// Do OS dependent declarations and includes
#if defined(__OS_IRIX_)
#include <signal.h>
#include <sys/prctl.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <arpa/inet.h>
#include <unistd.h>
pid_t string_thread;
#elif defined(__OS_Linux_)
#if (defined(__OS_IRIX_) || defined(__OS_Linux_))
#include <pthread.h>
#include <sys/types.h>
#include <sys/socket.h>
@@ -39,13 +41,10 @@ unsigned long string_thread;
#endif
// The thread function definition protocols are slightly
// different under Irix, Linux, and Windoze.
#if defined(__OS_IRIX_)
// The thread function protocols are slightly different
// under Windoze ... but of course!
void newStringByPipe(void *)
#elif defined(__OS_Linux_)
#if (defined(__OS_IRIX_) || defined(__OS_Linux_))
void *newStringByPipe(void *)
@@ -86,14 +85,15 @@ void newStringByPipe(void *)
// Free inputString.
for ( i=0;i<MAX_IN_STRINGS;i++ ) free(inputString[i]);
free(inputString);
#if (defined(__OS_IRIX_) || defined(__OS_Linux_))
pthread_exit(NULL);
return NULL;
#elif defined(__OS_Win_)
_endthread();
#endif
}
#if defined(__OS_IRIX_)
void newStringBySocket(void *)
#elif defined(__OS_Linux_)
#if (defined(__OS_IRIX_) || defined(__OS_Linux_))
void *newStringBySocket(void *)
@@ -113,7 +113,7 @@ void newStringBySocket(void *)
fd_set mask, rmask;
struct sockaddr_in sockname;
char socBuf[STRING_LEN];
static struct timeval timeout = {0, 1000}; // one millisecond
static struct timeval timeout = {0, 10000}; // ten millisecond
// Malloc inputString.
inputString = (char **) malloc(MAX_IN_STRINGS * sizeof(char *));
@@ -163,6 +163,9 @@ void newStringBySocket(void *)
while (notDone) {
rmask = mask;
// Need to reset the timeout values because of linux "select" implementation
timeout.tv_sec = 0;
timeout.tv_usec = 10000; // 0.01 seconds
select(maxfd+1, &rmask, (fd_set *)0, (fd_set *)0, &timeout);
if (FD_ISSET(soc_id,&rmask)) { // a new connection is available
// Accept and service the incoming connection request
@@ -232,18 +235,18 @@ void newStringBySocket(void *)
free(inputString);
printf("Socket connection closed.\n");
#if (defined(__OS_IRIX_) || defined(__OS_Linux_))
pthread_exit(NULL);
return NULL;
#elif defined(__OS_Win_)
_endthread();
#endif
}
void startPipeThread()
{
#if defined(__OS_IRIX_)
string_thread = sproc(newStringByPipe, PR_SALL);
if (string_thread == -1) {
fprintf(stderr, "unable to create input pipe thread ... aborting.\n");
exit(0);
}
#elif defined(__OS_Linux_)
#if (defined(__OS_IRIX_) || defined(__OS_Linux_))
if (pthread_create(&string_thread, NULL, newStringByPipe, NULL)) {
fprintf(stderr, "unable to create input pipe thread ... aborting.\n");
exit(0);
@@ -259,13 +262,7 @@ void startPipeThread()
void startSocketThread()
{
#if defined(__OS_IRIX_)
string_thread = sproc(newStringBySocket, PR_SALL);
if (string_thread == -1) {
fprintf(stderr, "unable to create input socket thread...aborting.\n");
exit(0);
}
#elif defined(__OS_Linux_)
#if (defined(__OS_IRIX_) || defined(__OS_Linux_))
if (pthread_create(&string_thread, NULL, newStringBySocket, NULL)) {
fprintf(stderr, "unable to create input socket thread...aborting.\n");
exit(0);