PR_Recv

Receives bytes from a connected socket.

Syntax

#include <prio.h>

PRInt32 PR_Recv(
  PRFileDesc *fd,
  void *buf,
  PRInt32 amount,
  PRIntn flags,
  PRIntervalTime timeout);

Parameters

The function has the following parameters:

fd: A pointer to a PRFileDesc object representing a socket.
buf: A pointer to a buffer to hold the data received.
amount: The size of buf (in bytes).
flags: Must be zero or PR_MSG_PEEK.
timeout: A value of type PRIntervalTime specifying the time limit for completion of the receive operation.

Returns

The function returns one of the following values:

A positive number indicates the number of bytes actually received.
The value 0 means the network connection is closed.
The value -1 indicates a failure. The reason for the failure can be obtained by calling PR_GetError.

Description

PR_Recv blocks until some positive number of bytes are transferred, a timeout occurs, or an error occurs. No more than amount bytes will be transferred.