nsprpub/pr/src/cplus/rcfileio.cpp

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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   3  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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  11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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  14  *
  15  * The Original Code is the Netscape Portable Runtime (NSPR).
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  17  * The Initial Developer of the Original Code is
  18  * Netscape Communications Corporation.
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  36  * ***** END LICENSE BLOCK ***** */
  37
  38 /*
  39 ** Class implementation for normal and special file I/O (ref: prio.h)
  40 */
  41
  42 #include "rcfileio.h"
  43
  44 #include <string.h>
  45
  46 RCFileIO::RCFileIO(): RCIO(RCIO::file) { }
  47
  48 RCFileIO::~RCFileIO() { if (NULL != fd) (void)Close(); }
  49
  50 PRInt64 RCFileIO::Available()
  51     { return fd->methods->available(fd); }
  52
  53 PRStatus RCFileIO::Close()
  54     { PRStatus rv = fd->methods->close(fd); fd = NULL; return rv; }
  55
  56 PRStatus RCFileIO::Delete(const char* filename) { return PR_Delete(filename); }
  57
  58 PRStatus RCFileIO::FileInfo(RCFileInfo* info) const
  59     { return fd->methods->fileInfo64(fd, &info->info); }
  60
  61 PRStatus RCFileIO::FileInfo(const char *name, RCFileInfo* info)
  62     { return PR_GetFileInfo64(name, &info->info); }
  63
  64 PRStatus RCFileIO::Fsync()
  65     { return fd->methods->fsync(fd); }
  66
  67 PRStatus RCFileIO::Open(const char *filename, PRIntn flags, PRIntn mode)
  68 {
  69     fd = PR_Open(filename, flags, mode);
  70     return (NULL == fd) ? PR_FAILURE : PR_SUCCESS;
  71 }  /* RCFileIO::Open */
  72
  73 PRInt32 RCFileIO::Read(void *buf, PRSize amount)
  74     { return fd->methods->read(fd, buf, amount); }
  75
  76 PRInt64 RCFileIO::Seek(PRInt64 offset, RCIO::Whence how)
  77 {
  78     PRSeekWhence whence;
  79     switch (how)
  80     {
  81         case RCFileIO::set: whence = PR_SEEK_SET; break;
  82         case RCFileIO::current: whence = PR_SEEK_CUR; break;
  83         case RCFileIO::end: whence = PR_SEEK_END; break;
  84         default: whence = (PRSeekWhence)-1;
  85     }
  86     return fd->methods->seek64(fd, offset, whence);
  87 }  /* RCFileIO::Seek */
  88
  89 PRInt32 RCFileIO::Write(const void *buf, PRSize amount)
  90     { return fd->methods->write(fd, buf, amount); }
  91
  92 PRInt32 RCFileIO::Writev(
  93     const PRIOVec *iov, PRSize size, const RCInterval& timeout)
  94     { return fd->methods->writev(fd, iov, size, timeout); }
  95
  96 RCIO *RCFileIO::GetSpecialFile(RCFileIO::SpecialFile special)
  97 {
  98     PRFileDesc* fd;
  99     PRSpecialFD which;
 100     RCFileIO* spec = NULL;
 101
 102     switch (special)
 103     {
 104         case RCFileIO::input: which = PR_StandardInput; break;
 105         case RCFileIO::output: which = PR_StandardOutput; break;
 106         case RCFileIO::error: which = PR_StandardError; break;
 107         default: which = (PRSpecialFD)-1;
 108     }
 109     fd = PR_GetSpecialFD(which);
 110     if (NULL != fd)
 111     {
 112         spec = new RCFileIO();
 113         if (NULL != spec) spec->fd = fd;
 114     }
 115     return spec;
 116 }  /* RCFileIO::GetSpecialFile */
 117
 118
 119 /*
 120 ** The following methods have been made non-virtual and private. These
 121 ** default implementations are intended to NEVER be called. They
 122 ** are not valid for this type of I/O class (normal and special file).
 123 */
 124 PRStatus RCFileIO::Connect(const RCNetAddr&, const RCInterval&)
 125 { PR_SetError(PR_INVALID_METHOD_ERROR, 0); return PR_FAILURE; }
 126
 127 PRStatus RCFileIO::GetLocalName(RCNetAddr*) const
 128 { PR_SetError(PR_INVALID_METHOD_ERROR, 0); return PR_FAILURE; }
 129
 130 PRStatus RCFileIO::GetPeerName(RCNetAddr*) const
 131 { PR_SetError(PR_INVALID_METHOD_ERROR, 0); return PR_FAILURE; }
 132
 133 PRStatus RCFileIO::GetSocketOption(PRSocketOptionData*) const
 134 { PR_SetError(PR_INVALID_METHOD_ERROR, 0); return PR_FAILURE; }
 135
 136 PRStatus RCFileIO::Listen(PRIntn)
 137 { PR_SetError(PR_INVALID_METHOD_ERROR, 0); return PR_FAILURE; }
 138
 139 PRInt16 RCFileIO::Poll(PRInt16, PRInt16*)
 140 { PR_SetError(PR_INVALID_METHOD_ERROR, 0); return 0; }
 141
 142 PRInt32 RCFileIO::Recv(void*, PRSize, PRIntn, const RCInterval&)
 143 { PR_SetError(PR_INVALID_METHOD_ERROR, 0); return -1; }
 144
 145 PRInt32 RCFileIO::Recvfrom(void*, PRSize, PRIntn, RCNetAddr*, const RCInterval&)
 146 { PR_SetError(PR_INVALID_METHOD_ERROR, 0); return -1; }
 147
 148 PRInt32 RCFileIO::Send(
 149     const void*, PRSize, PRIntn, const RCInterval&)
 150 { PR_SetError(PR_INVALID_METHOD_ERROR, 0); return -1; }
 151
 152 PRInt32 RCFileIO::Sendto(
 153     const void*, PRSize, PRIntn, const RCNetAddr&, const RCInterval&)
 154 { PR_SetError(PR_INVALID_METHOD_ERROR, 0); return -1; }
 155
 156 RCIO* RCFileIO::Accept(RCNetAddr*, const RCInterval&)
 157 { PR_SetError(PR_INVALID_METHOD_ERROR, 0); return NULL; }
 158
 159 PRStatus RCFileIO::Bind(const RCNetAddr&)
 160 { PR_SetError(PR_INVALID_METHOD_ERROR, 0); return PR_FAILURE; }
 161
 162 PRInt32 RCFileIO::AcceptRead(
 163     RCIO**, RCNetAddr**, void*, PRSize, const RCInterval&)
 164 { PR_SetError(PR_INVALID_METHOD_ERROR, 0); return -1; }
 165
 166 PRStatus RCFileIO::SetSocketOption(const PRSocketOptionData*)
 167 { PR_SetError(PR_INVALID_METHOD_ERROR, 0); return PR_FAILURE; }
 168
 169 PRStatus RCFileIO::Shutdown(RCIO::ShutdownHow)
 170 { PR_SetError(PR_INVALID_METHOD_ERROR, 0); return PR_FAILURE; }
 171
 172 PRInt32 RCFileIO::TransmitFile(
 173     RCIO*, const void*, PRSize, RCIO::FileDisposition, const RCInterval&)
 174 { PR_SetError(PR_INVALID_METHOD_ERROR, 0); return -1; }
 175
 176 /*
 177 ** Class implementation for file information object (ref: prio.h)
 178 */
 179
 180 RCFileInfo::~RCFileInfo() { }
 181
 182 RCFileInfo::RCFileInfo(const RCFileInfo& her): RCBase()
 183     { info = her.info; }  /* RCFileInfo::RCFileInfo */
 184
 185 RCTime RCFileInfo::CreationTime() const { return RCTime(info.creationTime); }
 186
 187 RCTime RCFileInfo::ModifyTime() const { return RCTime(info.modifyTime); }
 188
 189 RCFileInfo::FileType RCFileInfo::Type() const
 190 {
 191     RCFileInfo::FileType type;
 192     switch (info.type)
 193     {
 194         case PR_FILE_FILE: type = RCFileInfo::file; break;
 195         case PR_FILE_DIRECTORY: type = RCFileInfo::directory; break;
 196         default: type = RCFileInfo::other;
 197     }
 198     return type;
 199 }  /* RCFileInfo::Type */