diskd.cc File Reference

#include "squid.h"
#include "compat/socket.h"
#include "compat/unistd.h"
#include "DiskIO/DiskDaemon/diomsg.h"
#include "hash.h"
#include <cerrno>
#include <iostream>

Include dependency graph for diskd.cc:

Go to the source code of this file.

Classes
struct	_file_state

Macros
#define	DEBUG(LEVEL)   if ((LEVEL) <= DebugLevel)

Typedefs
typedef struct _file_state	file_state

Functions
void	xassert (const char *msg, const char *file, int line)
static int	do_open (diomsg *r, int, const char *buf)
static int	do_close (diomsg *r, int)
static int	do_read (diomsg *r, int, char *buf)
static int	do_write (diomsg *r, int, const char *buf)
static int	do_unlink (diomsg *r, int, const char *buf)
static void	msg_handle (diomsg *r, int rl, diomsg *s)
static int	fsCmp (const void *a, const void *b)
static unsigned int	fsHash (const void *key, unsigned int n)
static void	alarm_handler (int)
int	main (int argc, char *argv[])

Variables
static hash_table *	hash = nullptr
static pid_t	mypid
static char *	shmbuf
static int	DebugLevel = 0

Macro Definition Documentation

DEBUG

#define DEBUG

(

LEVEL

)

if ((LEVEL) <= DebugLevel)

Definition at line 38 of file diskd.cc.

Typedef Documentation

file_state

typedef struct _file_state file_state

Definition at line 40 of file diskd.cc.

Function Documentation

alarm_handler()

static void alarm_handler ( int  )

static

Definition at line 298 of file diskd.cc.

Referenced by main().

do_close()

static int do_close ( diomsg *  r, int    )

static

Definition at line 89 of file diskd.cc.

References DEBUG, _file_state::fd, hash, hash_lookup(), hash_remove_link(), diomsg::id, mypid, xclose(), and xfree.

Referenced by diskHandleWrite(), and msg_handle().

do_open()

static int do_open ( diomsg *  r, int  , const char *  buf  )

static

Definition at line 56 of file diskd.cc.

References DEBUG, _file_state::fd, hash, hash_join(), diomsg::id, _file_state::id, _file_state::key, mypid, diomsg::offset, xcalloc(), and xopen().

Referenced by msg_handle().

do_read()

static int do_read ( diomsg *  r, int  , char *  buf  )

static

Definition at line 119 of file diskd.cc.

References DEBUG, _file_state::fd, hash, hash_lookup(), diomsg::id, mypid, diomsg::offset, _file_state::offset, PRId64, diomsg::size, and xread().

Referenced by msg_handle().

do_unlink()

static int do_unlink ( diomsg *  r, int  , const char *  buf  )

static

Definition at line 213 of file diskd.cc.

References DEBUG, diomsg::id, and mypid.

Referenced by msg_handle().

do_write()

static int do_write ( diomsg *  r, int  , const char *  buf  )

static

Definition at line 168 of file diskd.cc.

References DEBUG, _file_state::fd, hash, hash_lookup(), diomsg::id, mypid, diomsg::offset, _file_state::offset, PRId64, diomsg::size, and xwrite().

Referenced by msg_handle().

fsCmp()

static int fsCmp ( const void *  a, const void *  b  )

static

Definition at line 282 of file diskd.cc.

Referenced by main().

fsHash()

static unsigned int fsHash ( const void *  key, unsigned int  n  )

static

Definition at line 290 of file diskd.cc.

Referenced by main().

main()

int main	(	int	argc,
		char *	argv[]
	)

Definition at line 302 of file diskd.cc.

References alarm_handler(), assert, DEBUG, fsCmp(), fsHash(), hash, hash_create(), msg_handle(), diomsg::msg_snd_rcv_sz, mypid, SA_RESTART, shmbuf, SQUID_NONBLOCK, xread(), and xstrerr().

msg_handle()

static void msg_handle ( diomsg *  r, int  rl, diomsg *  s  )

static

Definition at line 231 of file diskd.cc.

References _MQD_CLOSE, _MQD_CREATE, _MQD_OPEN, _MQD_READ, _MQD_UNLINK, _MQD_WRITE, assert, diomsg::callback_data, do_close(), do_open(), do_read(), do_unlink(), do_write(), diomsg::id, diomsg::mtype, mypid, diomsg::newstyle, diomsg::offset, diomsg::requestor, diomsg::seq_no, diomsg::shm_offset, shmbuf, diomsg::size, and diomsg::status.

Referenced by main().

xassert()

void xassert	(	const char *	msg,
		const char *	file,
		int	line
	)

Definition at line 30 of file diskd.cc.

Variable Documentation

DebugLevel

int DebugLevel = 0

static

Definition at line 53 of file diskd.cc.

hash

hash_table* hash = nullptr

static

Definition at line 50 of file diskd.cc.

Referenced by do_close(), do_open(), do_read(), do_write(), and main().

mypid

pid_t mypid

static

Definition at line 51 of file diskd.cc.

Referenced by do_close(), do_open(), do_read(), do_unlink(), do_write(), main(), and msg_handle().

shmbuf

char* shmbuf

static

Definition at line 52 of file diskd.cc.

Referenced by main(), and msg_handle().