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readme.txt
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1996-01-17
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Pattern Matching Search
SUMMARY
=======
The PDC sample is a character mode program for searching the files in a
directory tree for a match against a pattern. It uses multiple threads, with
each thread processing a file at a time, accumulating its matches and
outputting them to standard output contiguously when it is done searching
a file.
MORE INFORMATION
================
This program demonstrates how to use many of the advanced operating system
features provided by the Win32 API. The features that this program
demonstrates are:
- Creating multiple threads, using synchronization objects
- Thread termination
- Virtual memory commitment versus reservation
- Structured exception handling, using an exception filter procedure
- Enumeration of directory entries
- File mapping
- Asynchronous file I/O using a completion routine
- Synchronous file I/O
The command-line syntax is:
PDC [-h] [-v] [-y] [-a | -s | -m] [-t n] SearchString [DirectoryPath]
where:
h - Prints this message.
v - Generates verbose output.
y - Ignores case when doing comparisons.
a - Specifies that the program should use asynchronous file I/O to read
the files being searched.
s - Specifies that the program should use synchronous file I/O to read
the files being searched.
m - Specifies that the program should use mapped file I/O to read the
files being searched.
t - Specifies the number of threads to use when doing the search.
Default is 4 * the number of processors.
SearchString - Specifies the text to search for. Enclose in quotes if it
contains spaces or punctuation.
DirectoryPath - Specifies the root of the tree to begin the search at.
Defaults to the current directory.