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Modified to use libtransportaddon.a.

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@3741 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Michael Pfeiffer 2003-06-29 18:45:47 +00:00
parent 37b3e403fe
commit 8843cf3906
2 changed files with 29 additions and 48 deletions
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12
src/add-ons/print/transports/parallel_port/Jamfile
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@ -1,8 +1,14 @@
SubDir OBOS_TOP src add-ons print transports parallel_port ; SubDir OBOS_TOP src add-ons print transports parallel_port ;
Addon Parallel\ Port : print transport : SubDirHdrs [ FDirName $(OBOS_TOP) src add-ons print transports shared ] ;
print_transport.cpp
UsePrivateHeaders interface print ;
Addon Parallel\ Port
: print transport
: print_transport.cpp
; ;
LinkSharedOSLibs Parallel\ Port : be ; LinkSharedOSLibs Parallel\ Port : be libtransportaddon.a
;

65
src/add-ons/print/transports/parallel_port/print_transport.cpp
View File

@ -29,77 +29,44 @@
// DEALINGS IN THE SOFTWARE. // DEALINGS IN THE SOFTWARE.
/*****************************************************************************/ /*****************************************************************************/
#include <stdio.h>
#include <unistd.h> #include <unistd.h>
#include <stdio.h>
#include <StorageKit.h> #include <StorageKit.h>
#include <SupportKit.h> #include <SupportKit.h>
#include "TransportAddOn.h"
class ParallelPort : public BDataIO { class ParallelPort : public BDataIO {
int fFile; int fFile;
public: public:
ParallelPort(BMessage* msg); ParallelPort(BDirectory* printer, BMessage* msg);
~ParallelPort(); ~ParallelPort();
bool IsOk() { return fFile > -1; } status_t InitCheck() { return fFile > -1 ? B_OK : B_ERROR; }
ssize_t Read(void* buffer, size_t size); ssize_t Read(void* buffer, size_t size);
ssize_t Write(const void* buffer, size_t size); ssize_t Write(const void* buffer, size_t size);
}; };
// Only one connection per add-on permitted!
static ParallelPort* gPort = NULL;
// Implementation of transport add-on interface
extern "C" _EXPORT BDataIO * init_transport
(
BMessage * msg
)
{
if (msg != NULL && gPort == NULL) {
ParallelPort* port = new ParallelPort(msg);
if (port->IsOk()) {
gPort = port;
return port;
}
delete port;
}
return NULL;
}
extern "C" _EXPORT void exit_transport()
{
if (gPort != NULL) {
delete gPort;
}
}
// Impelmentation of ParallelPort // Impelmentation of ParallelPort
ParallelPort::ParallelPort(BMessage* msg) ParallelPort::ParallelPort(BDirectory* printer, BMessage* msg)
: fFile(-1) : fFile(-1)
{ {
const char* printer_name = msg->FindString("printer_file");
char address[80]; char address[80];
char device[B_PATH_NAME_LENGTH]; char device[B_PATH_NAME_LENGTH];
if (printer_name && *printer_name != '\0') { int size = printer->ReadAttr("transport_address", B_STRING_TYPE, 0, address, sizeof(address));
BDirectory printer(printer_name); if (size <= 0 || size >= sizeof(address)) return;
if (printer.InitCheck() != B_OK) return; address[size] = 0; // make sure string is 0-terminated
int size = printer.ReadAttr("transport_address", B_STRING_TYPE, 0, address, sizeof(address)); strcat(strcpy(device, "/dev/parallel/"), address);
if (size <= 0 || size >= sizeof(address)) return; fFile = open(device, O_RDWR | O_EXCL | O_BINARY, 0);
address[size] = 0; // make sure string is 0-terminated
strcat(strcpy(device, "/dev/parallel/"), address);
fFile = open(device, O_RDWR | O_EXCL | O_BINARY, 0);
}
} }
ParallelPort::~ParallelPort() { ParallelPort::~ParallelPort() {
if (IsOk()) { if (InitCheck() == B_OK) {
close(fFile); fFile = -1; close(fFile); fFile = -1;
} }
} }
@ -112,3 +79,11 @@ ssize_t ParallelPort::Write(const void* buffer, size_t size) {
return write(fFile, buffer, size); return write(fFile, buffer, size);
} }
BDataIO* instanciate_transport(BDirectory* printer, BMessage* msg) {
ParallelPort* transport = new ParallelPort(printer, msg);
if (transport->InitCheck() == B_OK) {
return transport;
} else {
delete transport; return NULL;
}
}