mbedtls_net_recv_timeout() function

Read at most 'len' characters, blocking for at most 'timeout' seconds. If no error occurs, the actual amount read is returned.

Syntax

Show:

Summary

Declaration

Definition

from net_sockets.h:270

int mbedtls_net_recv_timeout(void *ctx, unsigned char *buf, size_t len, uint32_t timeout);

Implemented in net_sockets.c:375

Arguments

Argument

Description

ctx

Socket

buf

The buffer to write to

len

Maximum length of the buffer

timeout

Maximum number of milliseconds to wait for data 0 means no timeout (wait forever)

Return value

The number of bytes received if successful. MBEDTLS_ERR_SSL_TIMEOUT if the operation timed out. MBEDTLS_ERR_SSL_WANT_READ if interrupted by a signal. Another negative error code (MBEDTLS_ERR_NET_xxx) for other failures.

Notes

The current implementation of this function uses select() and returns an error if the file descriptor is \c FD_SETSIZE or greater. This function will block (until data becomes available or timeout is reached) even if the socket is set to non-blocking. Handling timeouts with non-blocking reads requires a different strategy.