116 lines
1.7 KiB
C++
116 lines
1.7 KiB
C++
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// Device.cpp
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// Device object for use in devfs
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// Author: Josh Holtrop
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// Date: 06/03/04
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// Modified: 06/09/04
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#include "Device.h"
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#include "DeviceFolder.h"
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#include "hos_defines.h"
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#include "lang/string.h"
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Device::Device()
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{
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major = minor = permissions = type = 0;
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}
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Device::Device(string aname)
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{
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major = minor = permissions = type = 0;
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name = aname;
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}
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//Types:
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// l = link, call setLink()
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// d = directory, automatically initializes a new DeviceFolder object
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// b = block device
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// c = char device
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Device::Device(string aname, dword amajor, dword aminor, char atype, word apermissions)
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{
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name = aname;
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permissions = apermissions;
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type = atype;
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switch (type)
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{
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case 'd':
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folder = new DeviceFolder();
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break;
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case 'l':
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break;
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case 'b':
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case 'c':
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major = amajor;
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minor = aminor;
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break;
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}
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}
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Device::Device(const Device & orig)
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{
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minor = orig.minor;
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permissions = orig.permissions;
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type = orig.type;
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switch (type)
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{
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case 'b':
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case 'c':
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default:
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major = orig.major;
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break;
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case 'l':
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link = new string(*orig.link);
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break;
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case 'd':
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folder = new DeviceFolder(*(DeviceFolder *)orig.folder);
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break;
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}
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}
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Device::~Device()
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{
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switch (type)
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{
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case 'l':
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delete link;
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break;
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case 'd':
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delete (DeviceFolder *)folder;
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break;
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}
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}
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Device & Device::operator=(const Device & orig)
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{
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if (&orig != this)
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{
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this->~Device();
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permissions = orig.permissions;
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type = orig.type;
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switch (type)
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{
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case 'b':
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case 'c':
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default:
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major = orig.major;
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minor = orig.minor;
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break;
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case 'l':
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link = new string(*orig.link);
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break;
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case 'd':
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folder = new DeviceFolder(*(DeviceFolder *)orig.folder);
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break;
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}
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}
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return *this;
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}
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void Device::setLink(string alink)
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{
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if (type == 'l')
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link = new string(alink);
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}
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