00001
00002
00003
00004
00005
00006
00007
00008
00009
00010
00011
00012
00013
00014
00015
00016
00017
00018
00019
00020
00021
00022
00023
00024
00025
00026
00027
00028
00029
00030
00031
00032
00033
00034
00035
00036
00037
00038
00039
00040
00041
00047 #ifndef FASTFORMAT_INCL_FASTFORMAT_SINK_HPP_VECTORED_FILE
00048 #define FASTFORMAT_INCL_FASTFORMAT_SINK_HPP_VECTORED_FILE
00049
00050
00051
00052
00053
00054 #ifndef FASTFORMAT_DOCUMENTATION_SKIP_SECTION
00055 # define FASTFORMAT_VER_FASTFORMAT_SINK_HPP_VECTORED_FILE_MAJOR 1
00056 # define FASTFORMAT_VER_FASTFORMAT_SINK_HPP_VECTORED_FILE_MINOR 1
00057 # define FASTFORMAT_VER_FASTFORMAT_SINK_HPP_VECTORED_FILE_REVISION 2
00058 # define FASTFORMAT_VER_FASTFORMAT_SINK_HPP_VECTORED_FILE_EDIT 18
00059 #endif
00060
00061
00062
00063
00064
00065 #ifndef __cplusplus
00066 # error This file can only be included in C++ compilation units
00067 #endif
00068
00069
00070
00071
00072
00073 #include <fastformat/fastformat.h>
00074 #include <fastformat/internal/stlsoft.h>
00075 #include <fastformat/quality/contract.h>
00076 #include <fastformat/format/standard_flags.hpp>
00077
00078 #include <platformstl/error/exceptions.hpp>
00079 #include <stlsoft/memory/auto_buffer.hpp>
00080
00081 #include <string>
00082 #include <sys/uio.h>
00083
00084
00085
00086
00087
00088 #if !defined(FASTFORMAT_NO_NAMESPACE)
00089 namespace fastformat
00090 {
00091 namespace sinks
00092 {
00093 #endif
00094
00095
00096
00097
00098
00101 class vectored_file_sink
00102 {
00103 public:
00105 typedef vectored_file_sink class_type;
00106
00107 public:
00109 explicit vectored_file_sink(int fh)
00110 : m_fh(fh)
00111 , m_delim()
00112 {}
00114 vectored_file_sink(int fh, char const* delim)
00115 : m_fh(fh)
00116 , m_delim(delim)
00117 {}
00118
00119 public:
00121 class_type& write(size_t numResults, ff_string_slice_t const* results, int flags)
00122 {
00123 stlsoft::auto_buffer<iovec> vectors(numResults + 2);
00124
00125 #ifdef STLSOFT_CF_THROW_BAD_ALLOC
00126 if(!vectors.empty())
00127 #endif
00128 {
00129 FASTFORMAT_CONTRACT_ENFORCE_PRECONDITION_PARAMS_APPL_LAYER(vectors.size() == numResults + 2, "vec array must be equal to 2 + the number of results");
00130
00131 { for(size_t i = 0; i != vectors.size() - 2; ++i)
00132 {
00133 vectors[i].iov_base = const_cast<char*>(results[i].ptr);
00134 vectors[i].iov_len = results[i].len;
00135 }}
00136
00137 if(!m_delim.empty())
00138 {
00139 vectors[vectors.size() - 2].iov_base = const_cast<char*>(m_delim.data());
00140 vectors[vectors.size() - 2].iov_len = m_delim.size();
00141 }
00142 else
00143 {
00144 vectors.resize(vectors.size() - 1);
00145 }
00146
00147 if(flags::ff_newLine & flags)
00148 {
00149 const ff_string_slice_t crlf = fastformat_getNewlineForPlatform();
00150
00151 vectors[vectors.size() - 1].iov_base = const_cast<char*>(crlf.ptr);
00152 vectors[vectors.size() - 1].iov_len = crlf.len;
00153 }
00154 else
00155 {
00156 vectors.resize(vectors.size() - 1);
00157 }
00158
00159 if(::writev(m_fh, &vectors[0], static_cast<int>(vectors.size())) < 0)
00160 {
00161 #ifdef STLSOFT_CF_EXCEPTION_SUPPORT
00162 throw platformstl::platform_exception("failed to write vectored payload", errno);
00163 #endif
00164 }
00165
00166 #if 0
00167 if(flags::ff_flush & flags)
00168 {
00169 ::flush(m_fh);
00170 }
00171 #endif
00172 }
00173
00174 return *this;
00175 }
00176
00177 private:
00178 int m_fh;
00179 std::string m_delim;
00180 };
00181
00182
00183
00184
00185
00189 inline vectored_file_sink& fmt_slices(vectored_file_sink& sink, int flags, size_t , size_t numResults, ff_string_slice_t const* results)
00190 {
00191 return sink.write(numResults, results, flags);
00192 }
00193
00194
00195
00196
00197
00198 #if !defined(FASTFORMAT_NO_NAMESPACE)
00199 }
00200 }
00201 #endif
00202
00203
00204
00205
00206
00207 #ifdef STLSOFT_CF_PRAGMA_ONCE_SUPPORT
00208 # pragma once
00209 #endif
00210
00211
00212
00213 #endif
00214
00215