/**
* \brief Stop all threads
*/
void PipeListener::stopAll()
{
removePipe();
_watcher->stop();
_scanner->stop();
_cleaner->stop();
_done = true;
}
/**
* \brief Kill all threads (send "k" into pipe)
*/
void PipeListener::killAll()
{
_done = true;
std::ofstream fpipe(_pipename, std::ios::out);
fpipe << "k\n";
fpipe.close();
removePipe();
}
void
destroyNamedPipeObject (NamedPipeObject *obj) {
logMessage(LOG_DEBUG, "destroying named pipe: %s", obj->host.path);
if (obj->releaseResources) obj->releaseResources(obj);
stopInputMonitor(obj);
closeInputDescriptor(obj);
removePipe(obj);
deallocateHostPath(obj);
free(obj);
}
NamedPipeObject *
newNamedPipeObject (const char *name, NamedPipeInputCallback *callback, void *data) {
NamedPipeObject *obj;
if ((obj = malloc(sizeof(*obj)))) {
memset(obj, 0, sizeof(*obj));
obj->callback = callback;
obj->data = data;
obj->createPipe = NULL;
obj->monitorPipe = monitorInput;
obj->resetPipe = NULL;
obj->releaseResources = NULL;
setNamedPipeMethods(obj);
initializeHostPath(obj);
initializeInputDescriptor(obj);
initializeInputMonitor(obj);
{
const char *directory = getNamedPipeDirectory();
obj->host.path = directory? makePath(directory, name): NULL;
}
if (obj->host.path) {
if (!obj->createPipe) {
logUnsupportedOperation("create named pipe");
} else if (obj->createPipe(obj)) {
if (!obj->monitorPipe) {
logUnsupportedOperation("monitor named pipe");
} else if (obj->monitorPipe(obj)) {
return obj;
}
closeInputDescriptor(obj);
removePipe(obj);
}
deallocateHostPath(obj);
}
free(obj);
} else {
logMallocError();
}
return NULL;
}
static int
createFifo (NamedPipeObject *obj) {
int result = mkfifo(obj->host.path, 0);
if ((result == -1) && (errno == EEXIST)) {
struct stat fifo;
if (lstat(obj->host.path, &fifo) == -1) {
logMessage(LOG_ERR, "cannot stat FIFO: %s: %s",
obj->host.path, strerror(errno));
} else if (S_ISFIFO(fifo.st_mode)) {
result = 0;
}
}
if (result != -1) {
if (chmod(obj->host.path, S_IRUSR|S_IWUSR|S_IWGRP|S_IWOTH) != -1) {
// open read-write even though we only read to prevent an end-of-file condition
if ((obj->input.descriptor = open(obj->host.path, O_RDWR|O_NONBLOCK)) != -1) {
logMessage(LOG_DEBUG, "FIFO created: %s: fd=%d",
obj->host.path, obj->input.descriptor);
return 1;
} else {
logMessage(LOG_ERR, "cannot open FIFO: %s: %s",
obj->host.path, strerror(errno));
}
} else {
logMessage(LOG_ERR, "cannot set FIFO permissions: %s: %s",
obj->host.path, strerror(errno));
}
removePipe(obj);
} else {
logMessage(LOG_ERR, "cannot create FIFO: %s: %s",
obj->host.path, strerror(errno));
}
return 0;
}
