cc [flags…] –I /usr/cluster/include file –L /usr/cluster/lib –l dsdev#include <rgm/libdsdev.h> scha_err_t scds_fm_tcp_read(scds_handle_t handle, int sock, char *buffer, size_t *size, time_t timeout);
The scds_fm_tcp_read() function reads data from a TCP connection with a process being monitored.
The size argument is an input and argument. On input, you specify the size of the buffer, bytes. On completion, the function places the data in buffer and specifies the actual number of bytes read in size. If the buffer is not big enough for the number of bytes read, the function returns a full buffer of size bytes, and you can call the function again for further data.
If the function times out, it returns SCHA_ERR_TIMEOUT. In this case, the function might return fewer bytes than requested, indicated by the value returned in size.
The following parameters are supported:
The handle returned from scds_initialize(3HA).
The socket number returned by a previous call to scds_fm_tcp_connect(3HA).
Data buffer size. On input, you specify the size of the buffer, in bytes. On output, the function returns the actual number of bytes read.
Timeout value in seconds.
The scds_fm_tcp_read() function returns the following:
The function succeeded.
The function failed.
Indicates that the function succeeded.
Indicates that the function timed out.
Indicate that the function failed. See scha_calls(3HA) for the meaning of failure codes.
See attributes(7) for descriptions of the following attributes: