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libDynamoMiddleware.h File Reference

Desktop based Middleware Libraries. More...

Data Structures
struct	dynamo_backlight
	Contains Backlight information. More...
struct	dynamo_battery
	Contains Battery information. More...
struct	dynamo_cpu
	Contains CPU Information. More...
struct	dynamo_memory
	Contains Memory Information. More...
struct	dynamo_network
	Contains Network Information. More...
Functions
int	createSharedMemory (int key, int size)
	creates a chunk of shared memory
int	readSharedMemory (int shmid, void *data, int size)
	reads from the shared memory into a structuer
int	writeSharedMemory (int shmid, void *data, int size)
	writes data to the shared memory
int	freeSharedMemory (int shmid)
	releases the memory with id of shmid
int	createSemaphore (int key)
	translate semaphore key to an ID
int	freeSemaphore (int sem_id)
	free specified Semaphore
void	P (int sid)
	acquire semaphore
void	V (int sid)
	release semaphore
int	SendDatagram (char *targetIP, int targetPort, int localPort, void *buf, int bufsiz)
	Sends a Datagram to a remote computer.
int	CreateUDPSocket (char *localIP, int localPort)
	creates a UPD socket
int	UDP_Recv (int sockfd, void *buf, int size)
	Recives a datagram a remote computer.
int	UDP_Send (int sockfd, char *targetIP, int targetPort, int localPort, void *buf, int bufsiz)
	Sends a Datagram to a remote computer.

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Detailed Description

Desktop based Middleware Libraries.

Dynamo Middleware libraries, provide a easy to use interface for querying system information, utilizing shared memory, and communication framework

Copyright (C) 2004 Dynamo Middleware Group

version 0.5

Authors: Michael Philpott, Shivajit Mohapatra

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Function Documentation

int createSemaphore (  int  key  )

translate semaphore key to an ID Parameters: key  the Key that the semaphore should be created with Returns: the ID to the shared memory

int createSharedMemory (  int  key, int  size )

creates a chunk of shared memory Parameters: key  the Key to the shared memory size  the size that the shaed memory should be Returns: The ID to the shared memory

int CreateUDPSocket (  char *  localIP, int  localPort )

creates a UPD socket Parameters: *localIP  character array of the local IP address localPort  a port number

int freeSemaphore (  int  sem_id  )

free specified Semaphore Parameters: sem_id  the ID of the semaphore to free

int freeSharedMemory (  int  shmid  )

releases the memory with id of shmid Parameters: shmid  the id of the shared memory that is being freed

void P (  int  sid  )

acquire semaphore Parameters: sid  the ID of the semaphore to obtain

int readSharedMemory (  int  shmid, void *  data, int  size )

reads from the shared memory into a structuer Parameters: shmid  the ID of the shared memory *data  the structure that will be read size  the size of the item that will be read

int SendDatagram (  char *  targetIP, int  targetPort, int  localPort, void *  buf, int  bufsiz )

Sends a Datagram to a remote computer. Parameters: *targetIP  character array of target computers IP Address localPort  local port of the UPD socket targetPort  the remote hosts port *buf  the information to be sent bufsiz  the size of the item to be sent

int UDP_Recv (  int  sockfd, void *  buf, int  size )

Recives a datagram a remote computer. Parameters: sockfd  pointer to the UDP socket *buf  address of the structure to fill size  size of the structure to fill

int UDP_Send (  int  sockfd, char *  targetIP, int  targetPort, int  localPort, void *  buf, int  bufsiz )

Sends a Datagram to a remote computer. Parameters: sockfd  pointer to the upd socket *targetIP  character array of target computers IP Address targetPort  the remote hosts port localPort  local port of the UPD socket *buf  the information to be sent bufsiz  the size of the item to be sent

void V (  int  sid  )

release semaphore Parameters: sid  the ID of the semaphore to release

int writeSharedMemory (  int  shmid, void *  data, int  size )

writes data to the shared memory Parameters: shmid  the ID of the shared memory to write to *data  the information to write inot the shared memory size  the size of the item that will be written