#include <gunzip.h>
Public Member Functions | |
| virtual | ~input_gunzip () |
| input_gunzip (input &deeper) | |
| nstring | name () |
| off_t | length () |
| void | keepalive () |
| ssize_t | read_inner (void *data, size_t nbytes) |
| off_t | ftell_inner () |
| bool | is_remote () const |
Static Public Member Functions | |
| static bool | candidate (input &deeper) |
Private Member Functions | |
| void | zlib_fatal_error (int err) |
| long | getLong () |
| void | read_header () |
| input_gunzip () | |
| input_gunzip (const input_gunzip &arg) | |
| input_gunzip & | operator= (const input_gunzip &arg) |
Private Attributes | |
| input | deeper |
| z_stream | stream |
| bool | z_eof |
| uLong | crc |
| off_t | pos |
| Byte * | buf |
| nstring | filename |
Detailed Description
The input_gunzip class is used to represent an input stream which is uncompressed on the fly.
Constructor & Destructor Documentation
| virtual input_gunzip::~input_gunzip | ( | ) | [virtual] |
The destructor.
| input_gunzip::input_gunzip | ( | input & | deeper | ) |
The constructor.
- Parameters:
-
deeper The deeper input which this filter reads from.
| input_gunzip::input_gunzip | ( | ) | [private] |
The default constructor.
| input_gunzip::input_gunzip | ( | const input_gunzip & | arg | ) | [private] |
The copy constructor.
Member Function Documentation
| static bool input_gunzip::candidate | ( | input & | deeper | ) | [static] |
The candidate class method is used to check the magi number of a gzipped file. All of the bytes read are unread before this method returns.
| off_t input_gunzip::ftell_inner | ( | ) | [virtual] |
The ftell_inner method is used to determine the unbuffered current position within the input.
Implements input_ty.
| long input_gunzip::getLong | ( | ) | [private] |
| bool input_gunzip::is_remote | ( | ) | const [virtual] |
The is_remote method is used to determine whether or not an input stream is from a local file or a remote source. This is only intended to be a generally informative thing, to provide information to the user, it isn't (and can't be) utterly precise.
Reimplemented from input_ty.
| void input_gunzip::keepalive | ( | ) | [virtual] |
The keepalive method is used to set the SO_KEEPALIVE socket option, if the file is a socket. Does nothing otherwise.
Reimplemented from input_ty.
| off_t input_gunzip::length | ( | ) | [virtual] |
The length method is used to determine the length of the input. May return -1 if the length is unknown.
Implements input_ty.
| nstring input_gunzip::name | ( | ) | [virtual] |
The name method is used to determine the name of the input.
Implements input_ty.
| input_gunzip& input_gunzip::operator= | ( | const input_gunzip & | arg | ) | [private] |
The assignment operator.
| void input_gunzip::read_header | ( | ) | [private] |
| ssize_t input_gunzip::read_inner | ( | void * | data, |
| size_t | nbytes | ||
| ) | [virtual] |
The read_inner method is used to read unbuffered data from the given input stream. At most nbytes bytes will be read into data. The number of bytes actually read will be returned. At end-of-file, a value <= 0 will be returned, and data will be unchanged. All file read errors or format errors are fatal, and will cause the method to not return.
- Parameters:
-
data Where to put the results of the read. nbytes The maximum number of bytes to read.
- Returns:
- The actual number of bytes read, or zero for end-of-file.
Implements input_ty.
| void input_gunzip::zlib_fatal_error | ( | int | err | ) | [private] |
Field Documentation
Byte* input_gunzip::buf [private] |
uLong input_gunzip::crc [private] |
input input_gunzip::deeper [private] |
nstring input_gunzip::filename [private] |
off_t input_gunzip::pos [private] |
z_stream input_gunzip::stream [private] |
bool input_gunzip::z_eof [private] |
The documentation for this class was generated from the following file:
- /home/archives/aegis/branch.4/branch.25/delta28933.505/libaegis/input/gunzip.h
