#include <curl/curl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "io.h"

Functions
CURLcode	urlFetchData (URL_t *URL)

size_t	url_fread (void obuf, size_t obufSize, URL_t URL)

size_t	urlRead (URL_t URL, void buf, size_t bufSize)
	Reads data into the given buffer. More...

CURLcode	urlSeek (URL_t *URL, size_t pos)
	Seeks to a given position in a local or remote file. More...

URL_t *	urlOpen (char *fname)

void	urlClose (URL_t *URL)

int	bwSetPos (bigWigFile_t *fp, size_t pos)

size_t	bwRead (void data, size_t sz, size_t nmemb, bigWigFile_t fp)

void	bwClose (bigWigFile_t *fp)

int	bwInit (size_t defaultBufSize, int nFetchIterations, unsigned int nSeconds)

void	bwCleanup ()

Function Documentation

void bwCleanup ( )

void bwClose ( bigWigFile_t * fp )

int bwInit	(	size_t	defaultBufSize,
		int	nFetchIterations,
		unsigned int	nSeconds
	)

size_t bwRead	(	void *	data,
		size_t	sz,
		size_t	nmemb,
		bigWigFile_t *	fp
	)

int bwSetPos	(	bigWigFile_t *	fp,
		size_t	pos
	)

size_t url_fread	(	void *	obuf,
		size_t	obufSize,
		URL_t *	URL
	)

void urlClose ( URL_t * URL )

CURLcode urlFetchData ( URL_t * URL )

URL_t* urlOpen ( char * fname )

size_t urlRead	(	URL_t *	URL,
		void *	buf,
		size_t	bufSize
	)

Reads data into the given buffer.

This function will store bufSize data into buf for both local and remote files. For remote files an internal buffer is used to store a (typically larger) segment of the remote file.

Parameters

URL	A URL_t * pointing to a valid opened file or remote URL.
buf	The buffer in memory that you would like filled. It must be able to hold bufSize bytes!
bufSize	The number of bytes to transfer to buf.

Returns: Returns the number of bytes stored in buf, which should be bufSize on success and something else on error.

Warning: Note that on error, URL for remote files is left in an unusable state. You can get around this by running urlSeek() to a position outside of the range held by the internal buffer.

CURLcode urlSeek	(	URL_t *	URL,
		size_t	pos
	)

Seeks to a given position in a local or remote file.

For local files, this will set the file position indicator for the file pointer to the desired position. For remote files, it sets the position to start downloading data for the next urlRead(). Note that for remote files that running urlSeek() with a pos within the current buffer will simply modify the internal offset.

Returns: CURLE_OK on success and a different CURLE_XXX on error. For local files, the error return value is always CURLE_FAILED_INIT

Functions

Function Documentation