- Implement Trigger method to allow buffers
- Identation, 80/90, tabs & whitespaces git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@32788 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Oliver Ruiz Dorantes
parent
cb5961b774
commit
d1966ec2c2
@ -14,148 +14,164 @@ template <
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size_t MAX_MESSAGE_DEEP = 16,
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uint32 PRIORITY = B_URGENT_DISPLAY_PRIORITY>
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class PortListener {
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public:
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typedef status_t (*port_listener_func)(TYPE*, int32, size_t);
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public:
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typedef status_t (*port_listener_func)(TYPE*, int32, size_t);
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PortListener(const char* name, port_listener_func handler)
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{
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fInformation.func = handler;
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fInformation.port = &fPort;
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PortListener(const char* name, port_listener_func handler)
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{
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fInformation.func = handler;
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fInformation.port = &fPort;
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InitCheck();
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fPortName = strdup(name);
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fThreadName = strdup(name);
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fThreadName = strcat(fThreadName, " thread");
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}
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InitCheck();
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fPortName = strdup(name);
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fThreadName = strdup(name);
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fThreadName = strcat(fThreadName, " thread");
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}
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~PortListener()
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{
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status_t status;
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~PortListener()
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{
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status_t status;
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close_port(fPort);
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// Closing the port should provoke the thread to finish
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wait_for_thread(fThread, &status);
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delete fThreadName;
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delete fPortName;
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}
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close_port(fPort);
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// Closing the port should provoke the thread to finish
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wait_for_thread(fThread, &status);
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delete fThreadName;
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delete fPortName;
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}
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status_t TriggerCode(int32 code)
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{
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status_t Trigger(int32 code)
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{
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return write_port(fPort, code, NULL, 0);
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}
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status_t Trigger(int32 code, TYPE* buffer, size_t size = 0)
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{
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if (buffer == NULL)
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return B_ERROR;
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if (size == 0)
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return write_port(fPort, code, buffer, sizeof(TYPE));
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else
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return write_port(fPort, code, buffer, size);
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}
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status_t InitCheck()
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{
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// Create Port
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fPort = find_port(fPortName);
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if (fPort == B_NAME_NOT_FOUND) {
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fPort = create_port(MAX_MESSAGE_DEEP, fPortName);
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}
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if (fPort < B_OK)
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return fPort;
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status_t InitCheck()
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{
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// Create Port
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fPort = find_port(fPortName);
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if (fPort == B_NAME_NOT_FOUND) {
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fPort = create_port(MAX_MESSAGE_DEEP, fPortName);
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}
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// Create Thread
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if (fPort < B_OK)
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return fPort;
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// Create Thread
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fThread = find_thread(fThreadName);
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if (fThread < B_OK) {
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fThread = find_thread(fThreadName);
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if (fThread < B_OK) {
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#ifdef KERNEL_LAND
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fThread = spawn_kernel_thread((thread_func)&PortListener<TYPE,MAX_MESSAGE_SIZE,
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MAX_MESSAGE_DEEP, PRIORITY>::threadFunction, fThreadName, PRIORITY, &fInformation);
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fThread = spawn_kernel_thread((thread_func)&PortListener<TYPE,
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MAX_MESSAGE_SIZE, MAX_MESSAGE_DEEP, PRIORITY>::threadFunction,
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fThreadName, PRIORITY, &fInformation);
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#else
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fThread = spawn_thread((thread_func)&PortListener<TYPE,MAX_MESSAGE_SIZE,
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MAX_MESSAGE_DEEP, PRIORITY>::threadFunction, fThreadName, PRIORITY, &fInformation);
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fThread = spawn_thread((thread_func)&PortListener<TYPE,
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MAX_MESSAGE_SIZE, MAX_MESSAGE_DEEP, PRIORITY>::threadFunction,
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fThreadName, PRIORITY, &fInformation);
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#endif
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}
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if (fThread < B_OK)
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return fThread;
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return B_OK;
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}
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status_t Launch()
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{
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status_t check = InitCheck();
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if (check < B_OK)
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return check;
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return resume_thread(fThread);
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}
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status_t Stop()
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{
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status_t status;
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close_port(fPort);
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// Closing the port should provoke the thread to finish
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wait_for_thread(fThread, &status);
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return status;
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}
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private:
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struct PortListenerInfo {
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port_id* port;
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port_listener_func func;
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} fInformation;
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port_id fPort;
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thread_id fThread;
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char* fThreadName;
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char* fPortName;
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static int32 threadFunction(void* data)
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{
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ssize_t ssizePort;
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ssize_t ssizeRead;
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status_t status = B_OK;
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int32 code;
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port_id* port = ((struct PortListenerInfo*)data)->port;
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port_listener_func handler = ((struct PortListenerInfo*)data)->func;
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TYPE* buffer = (TYPE*)malloc(MAX_MESSAGE_SIZE);
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while ((ssizePort = port_buffer_size(*port)) != B_BAD_PORT_ID) {
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if (ssizePort <= 0) {
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snooze(500*1000);
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continue;
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}
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if (fThread < B_OK)
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return fThread;
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return B_OK;
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}
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status_t Launch()
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{
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status_t check = InitCheck();
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if (check < B_OK)
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return check;
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return resume_thread(fThread);
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}
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status_t Stop()
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{
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status_t status;
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wait_for_thread(fThread, &status);
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return status;
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}
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private:
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struct PortListenerInfo {
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port_id* port;
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port_listener_func func;
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} fInformation;
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port_id fPort;
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thread_id fThread;
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char* fThreadName;
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char* fPortName;
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static int32 threadFunction(void* data)
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{
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ssize_t ssizePort;
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ssize_t ssizeRead;
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status_t status = B_OK;
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int32 code;
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port_id* port = ((struct PortListenerInfo*)data)->port;
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port_listener_func handler = ((struct PortListenerInfo*)data)->func;
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TYPE* buffer = (TYPE*)malloc(MAX_MESSAGE_SIZE);
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while ((ssizePort = port_buffer_size(*port)) != B_BAD_PORT_ID) {
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if (ssizePort <= 0) {
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snooze(500*1000);
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continue;
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}
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if (ssizePort > MAX_MESSAGE_SIZE) {
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snooze(500*1000);
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continue;
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}
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ssizeRead = read_port(*port, &code, (void*)buffer, ssizePort);
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if (ssizeRead != ssizePort)
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continue;
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status = handler(buffer, code, ssizePort);
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if (status != B_OK)
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break;
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if (ssizePort > MAX_MESSAGE_SIZE) {
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snooze(500*1000);
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continue;
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}
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free(buffer);
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if (ssizePort == B_BAD_PORT_ID) // the port disappeared
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return ssizePort;
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return status;
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ssizeRead = read_port(*port, &code, (void*)buffer, ssizePort);
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if (ssizeRead != ssizePort)
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continue;
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status = handler(buffer, code, ssizePort);
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if (status != B_OK)
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break;
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}
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free(buffer);
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if (ssizePort == B_BAD_PORT_ID) // the port disappeared
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return ssizePort;
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return status;
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}
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}; // PortListener
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#endif // PORTLISTENER_H_
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