FreeRTOS Emulator with SDL2 Based Graphics and Input Library  1.0
A POSIX wrapper to run FreeRTOS on an x86 machine with some basic input and output libraries aimed at making teaching FreeRTOS simpler.
Macros | Functions | Variables
AIO Socket Examples

The AIO socket library works around opening a socket with an attached handler that is then asynchronously called when datta is put to the socket. More...

Macros

#define UDP_BUFFER_SIZE   2000
 
#define UDP_TEST_PORT_1   1234
 
#define UDP_TEST_PORT_2   4321
 
#define TCP_BUFFER_SIZE   2000
 
#define TCP_TEST_PORT   2222
 

Functions

int xCreateSocketTasks (void)
 Creates the UDP and TCP demo tasks used for demonstration purposes. More...
 
void vDeleteSocketTasks (void)
 Deletes the demo sockets tasks found in async_sockets.h. More...
 

Variables

TaskHandle_t UDPDemoTask
 
TaskHandle_t TCPDemoTask
 
aIO_handle_t udp_soc_one
 
aIO_handle_t udp_soc_two
 
aIO_handle_t tcp_soc
 

Detailed Description

The AIO socket library works around opening a socket with an attached handler that is then asynchronously called when datta is put to the socket.

Opening a socket

char *addr = NULL; // Loopback
in_port_t port = UDP_TEST_PORT_1;
udp_soc_one = aIOOpenUDPSocket(addr, port, UDP_BUFFER_SIZE,
vUDPHandlerOne, NULL);
aIOOpenUDPSocket
aIO_handle_t aIOOpenUDPSocket(char *s_addr, in_port_t port, size_t buffer_size, void(*callback)(size_t, char *, void *), void *args)
Definition: AsyncIO.c:495
vUDPHandlerOne
void vUDPHandlerOne(size_t read_size, char *buffer, void *args)
Definition: async_sockets.c:43
udp_soc_one
aIO_handle_t udp_soc_one
Definition: async_sockets.c:36
UDP_BUFFER_SIZE
#define UDP_BUFFER_SIZE
Definition: async_sockets.h:64
UDP_TEST_PORT_1
#define UDP_TEST_PORT_1
Definition: async_sockets.h:65

Socket handler

void vTCPHandler(size_t read_size, char *buffer, void *args)
{
prints("TCP Recv: %s\n", buffer);
}
vTCPHandler
void vTCPHandler(size_t read_size, char *buffer, void *args)
Definition: async_sockets.c:143
prints
void prints(const char *__format,...)
Prints a formatted string to stdout
Definition: gfx_print.c:104

Putting to socket

if (udp_soc_one)
aIOSocketPut(UDP, NULL, UDP_TEST_PORT_1, test_str_1,
strlen(test_str_1));
aIOSocketPut
int aIOSocketPut(aIO_socket_e protocol, char *s_addr, in_port_t port, char *buffer, size_t buffer_size)
Send the data stored in buffer to the socket described by s_addr and port.
Definition: AsyncIO.c:291
UDP
@ UDP
Definition: AsyncIO.h:58

Macro Definition Documentation

◆ TCP_BUFFER_SIZE

#define TCP_BUFFER_SIZE   2000

◆ TCP_TEST_PORT

#define TCP_TEST_PORT   2222

◆ UDP_BUFFER_SIZE

#define UDP_BUFFER_SIZE   2000

◆ UDP_TEST_PORT_1

#define UDP_TEST_PORT_1   1234

◆ UDP_TEST_PORT_2

#define UDP_TEST_PORT_2   4321

Function Documentation

◆ vDeleteSocketTasks()

void vDeleteSocketTasks ( void  )

Deletes the demo sockets tasks found in async_sockets.h.

◆ xCreateSocketTasks()

int xCreateSocketTasks ( void  )

Creates the UDP and TCP demo tasks used for demonstration purposes.

Returns
0 on success

Variable Documentation

◆ tcp_soc

aIO_handle_t tcp_soc
extern

◆ TCPDemoTask

TaskHandle_t TCPDemoTask
extern

◆ udp_soc_one

aIO_handle_t udp_soc_one
extern

◆ udp_soc_two

aIO_handle_t udp_soc_two
extern

◆ UDPDemoTask

TaskHandle_t UDPDemoTask
extern