Greg Clayton | ab7b39c | 2010-09-17 17:42:16 +0000 | [diff] [blame] | 1 | //===-- SBStream.cpp ----------------------------------------*- C++ -*-===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | #include "lldb/API/SBStream.h" |
| 11 | |
Greg Clayton | 5892856 | 2011-02-09 01:08:52 +0000 | [diff] [blame] | 12 | #include "lldb/Core/Error.h" |
Greg Clayton | ab7b39c | 2010-09-17 17:42:16 +0000 | [diff] [blame] | 13 | #include "lldb/Core/Stream.h" |
| 14 | #include "lldb/Core/StreamFile.h" |
| 15 | #include "lldb/Core/StreamString.h" |
| 16 | |
| 17 | using namespace lldb; |
| 18 | using namespace lldb_private; |
| 19 | |
| 20 | SBStream::SBStream () : |
Johnny Chen | e5791dd | 2010-12-11 01:20:39 +0000 | [diff] [blame] | 21 | m_opaque_ap (new StreamString()), |
Greg Clayton | ab7b39c | 2010-09-17 17:42:16 +0000 | [diff] [blame] | 22 | m_is_file (false) |
| 23 | { |
| 24 | } |
| 25 | |
| 26 | SBStream::~SBStream () |
| 27 | { |
| 28 | } |
| 29 | |
| 30 | bool |
| 31 | SBStream::IsValid() const |
| 32 | { |
| 33 | return (m_opaque_ap.get() != NULL); |
| 34 | } |
| 35 | |
| 36 | // If this stream is not redirected to a file, it will maintain a local |
| 37 | // cache for the stream data which can be accessed using this accessor. |
| 38 | const char * |
| 39 | SBStream::GetData () |
| 40 | { |
| 41 | if (m_is_file || m_opaque_ap.get() == NULL) |
| 42 | return NULL; |
| 43 | |
| 44 | return static_cast<StreamString *>(m_opaque_ap.get())->GetData(); |
| 45 | } |
| 46 | |
| 47 | // If this stream is not redirected to a file, it will maintain a local |
| 48 | // cache for the stream output whose length can be accessed using this |
| 49 | // accessor. |
| 50 | size_t |
| 51 | SBStream::GetSize() |
| 52 | { |
| 53 | if (m_is_file || m_opaque_ap.get() == NULL) |
Bill Wendling | a9fe7e7 | 2012-04-03 04:14:31 +0000 | [diff] [blame] | 54 | return 0; |
Greg Clayton | ab7b39c | 2010-09-17 17:42:16 +0000 | [diff] [blame] | 55 | |
| 56 | return static_cast<StreamString *>(m_opaque_ap.get())->GetSize(); |
| 57 | } |
| 58 | |
| 59 | void |
| 60 | SBStream::Printf (const char *format, ...) |
| 61 | { |
Johnny Chen | 4278bbe | 2011-12-20 00:41:28 +0000 | [diff] [blame] | 62 | if (!format) |
| 63 | return; |
Greg Clayton | ab7b39c | 2010-09-17 17:42:16 +0000 | [diff] [blame] | 64 | va_list args; |
| 65 | va_start (args, format); |
| 66 | ref().PrintfVarArg (format, args); |
| 67 | va_end (args); |
| 68 | } |
| 69 | |
| 70 | void |
| 71 | SBStream::RedirectToFile (const char *path, bool append) |
| 72 | { |
| 73 | std::string local_data; |
| 74 | if (m_opaque_ap.get()) |
| 75 | { |
| 76 | // See if we have any locally backed data. If so, copy it so we can then |
| 77 | // redirect it to the file so we don't lose the data |
| 78 | if (!m_is_file) |
| 79 | local_data.swap(static_cast<StreamString *>(m_opaque_ap.get())->GetString()); |
| 80 | } |
Greg Clayton | 5892856 | 2011-02-09 01:08:52 +0000 | [diff] [blame] | 81 | StreamFile *stream_file = new StreamFile; |
| 82 | uint32_t open_options = File::eOpenOptionWrite | File::eOpenOptionCanCreate; |
| 83 | if (append) |
| 84 | open_options |= File::eOpenOptionAppend; |
| 85 | stream_file->GetFile().Open (path, open_options, File::ePermissionsDefault); |
| 86 | |
| 87 | m_opaque_ap.reset (stream_file); |
Greg Clayton | ab7b39c | 2010-09-17 17:42:16 +0000 | [diff] [blame] | 88 | |
| 89 | if (m_opaque_ap.get()) |
| 90 | { |
| 91 | m_is_file = true; |
| 92 | |
| 93 | // If we had any data locally in our StreamString, then pass that along to |
| 94 | // the to new file we are redirecting to. |
| 95 | if (!local_data.empty()) |
| 96 | m_opaque_ap->Write (&local_data[0], local_data.size()); |
| 97 | } |
| 98 | else |
| 99 | m_is_file = false; |
| 100 | } |
| 101 | |
| 102 | void |
| 103 | SBStream::RedirectToFileHandle (FILE *fh, bool transfer_fh_ownership) |
| 104 | { |
| 105 | std::string local_data; |
| 106 | if (m_opaque_ap.get()) |
| 107 | { |
| 108 | // See if we have any locally backed data. If so, copy it so we can then |
| 109 | // redirect it to the file so we don't lose the data |
| 110 | if (!m_is_file) |
| 111 | local_data.swap(static_cast<StreamString *>(m_opaque_ap.get())->GetString()); |
| 112 | } |
| 113 | m_opaque_ap.reset (new StreamFile (fh, transfer_fh_ownership)); |
| 114 | |
| 115 | if (m_opaque_ap.get()) |
| 116 | { |
| 117 | m_is_file = true; |
| 118 | |
| 119 | // If we had any data locally in our StreamString, then pass that along to |
| 120 | // the to new file we are redirecting to. |
| 121 | if (!local_data.empty()) |
| 122 | m_opaque_ap->Write (&local_data[0], local_data.size()); |
| 123 | } |
| 124 | else |
| 125 | m_is_file = false; |
| 126 | } |
| 127 | |
| 128 | void |
| 129 | SBStream::RedirectToFileDescriptor (int fd, bool transfer_fh_ownership) |
| 130 | { |
| 131 | std::string local_data; |
| 132 | if (m_opaque_ap.get()) |
| 133 | { |
| 134 | // See if we have any locally backed data. If so, copy it so we can then |
| 135 | // redirect it to the file so we don't lose the data |
| 136 | if (!m_is_file) |
| 137 | local_data.swap(static_cast<StreamString *>(m_opaque_ap.get())->GetString()); |
| 138 | } |
| 139 | |
| 140 | m_opaque_ap.reset (new StreamFile (::fdopen (fd, "w"), transfer_fh_ownership)); |
| 141 | if (m_opaque_ap.get()) |
| 142 | { |
| 143 | m_is_file = true; |
| 144 | |
| 145 | // If we had any data locally in our StreamString, then pass that along to |
| 146 | // the to new file we are redirecting to. |
| 147 | if (!local_data.empty()) |
| 148 | m_opaque_ap->Write (&local_data[0], local_data.size()); |
| 149 | } |
| 150 | else |
| 151 | m_is_file = false; |
| 152 | |
| 153 | } |
| 154 | |
| 155 | lldb_private::Stream * |
| 156 | SBStream::operator->() |
| 157 | { |
| 158 | return m_opaque_ap.get(); |
| 159 | } |
| 160 | |
| 161 | lldb_private::Stream * |
| 162 | SBStream::get() |
| 163 | { |
| 164 | return m_opaque_ap.get(); |
| 165 | } |
| 166 | |
| 167 | lldb_private::Stream & |
| 168 | SBStream::ref() |
| 169 | { |
| 170 | if (m_opaque_ap.get() == NULL) |
| 171 | m_opaque_ap.reset (new StreamString()); |
| 172 | return *m_opaque_ap.get(); |
| 173 | } |
| 174 | |
| 175 | void |
| 176 | SBStream::Clear () |
| 177 | { |
| 178 | if (m_opaque_ap.get()) |
| 179 | { |
| 180 | // See if we have any locally backed data. If so, copy it so we can then |
| 181 | // redirect it to the file so we don't lose the data |
| 182 | if (m_is_file) |
| 183 | m_opaque_ap.reset(); |
| 184 | else |
| 185 | static_cast<StreamString *>(m_opaque_ap.get())->GetString().clear(); |
| 186 | } |
| 187 | } |