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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | < html > <!-- #BeginTemplate "/Templates/tmpl.dwt" --> <!-- DW6 --> < head > <!-- #BeginEditable "doctitle" --> < title >PTypes: streams: infile</ title > <!-- #EndEditable --> < meta http-equiv = "Content-Type" content = "text/html; charset=iso-8859-1" > < link rel = "stylesheet" href = "styles.css" > </ head > < body bgcolor = "#FFFFFF" leftmargin = "40" marginwidth = "40" > < p >< a href = "../index.html" >< img src = "title-21.png" width = "253" height = "39" alt = "C++ Portable Types Library (PTypes) Version 2.1" border = "0" ></ a > < hr size = "1" noshade> <!-- #BeginEditable "body" --> < p class = "hpath" >< a href = "index.html" >Top</ a >: < a href = "streams.html" >Streams</ a >: infile </ p > < blockquote > < pre class = "lang" >#include < pstreams.h > class infile: instm { infile( [ const string& filename ] ); void pipe(outfile& peer); string get/set_filename(string); } </ pre > </ blockquote > < p >This class derives all public methods and properties from < a href = "streams.iobase.html" >iobase</ a > and < a href = "streams.instm.html" >instm</ a >, and in addition, defines the following:</ p > < p >< span class = "def" >infile::infile( [ const string& filename ] )</ span > creates an input file stream, but does not open the file. < span class = "lang" >Filename</ span > is optional and can be set later, using < span class = "lang" >set_filename()</ span >.</ p > < p >< span class = "def" >void infile::pipe(outfile& peer)</ span > creates a local pipe. This function sets up and opens the < span class = "lang" >infile</ span > and < span class = "lang" >outfile</ span > objects so that a thread can asynchronously pass data to another thread within one process. Note that < span class = "lang" >pipe()</ span > opens both streams; subsequent calls to < span class = "lang" >open()</ span >, < span class = "lang" >close()</ span > or < span class = "lang" >cancel()</ span > shuts down the pipe. Local pipe is a slower alternative to the message queue. The only advantage of local pipes is that they provide a standard streaming interface.</ p > < p >< span class = "def" > string infile::get/set_filename(string)</ span > sets the file name. < span class = "lang" >set_filename()</ span > closes the stream prior to assigning the new value.</ p > < p class = "seealso" >See also: < a href = "streams.iobase.html" >iobase</ a >, < a href = "streams.instm.html" >instm</ a >, < a href = "streams.examples.html" >Examples</ a ></ p > <!-- #EndEditable --> < hr size = "1" > < a href = "../index.html" class = "ns" >PTypes home</ a > </ body > <!-- #EndTemplate --> </ html > |
Source at commit 8edbcdac0d39 created 11 years 10 months ago. By Nathan Adams, initial commit |
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