vrb_write(3)						      VRB Programmer's Manual						      vrb_write(3)

NAME

       vrb_write - write data from a VRB

LIBRARY

       -lvrb

SYNOPSIS

       #include <vrb.h>

       size_t vrb_write(vrb_p vrb, int fd, size_t size);

DESCRIPTION

       vrb_write writes data to a specified open file descriptor using write(2) from the specified virtual ring buffer until the specified maximum
       length has been written, the buffer is full, or an error is returned (including EAGAIN or EWOULDBLOCK for a non-blocking descriptor).

ARGUMENTS

       vrb_p vrb
       specifies which virtual ring buffer.

       int fd
       specifies the open file descriptor to write to

       size_t size
       specifies the maximum length to write, or ~0 for unlimited (all of buffer).

RETURN VALUE

       size_t
       If successful, the actual length of data written from the buffer is returned.  If no data was available to be written, 0 will be  returned.
       If an error occurs from write(2), the return value is ~0 and errno is set by write(2).

ERRORS

       If an error is returned, then errno will have one of the following values:

       0      An end-of-file has occurred.  Note that this is a different way of returning an end-of-file condition than write(2) uses.

       EINVAL An invalid virtual ring buffer pointer was specified.

SEE ALSO

       vrb(3),	 vrb_capacity(3),   vrb_data_len(3),   vrb_data_ptr(3),  vrb_destroy(3),  vrb_get(3),  vrb_get_min(3),	vrb_give(3),  vrb_init(3),
       vrb_init_opt(3),  vrb_is_empty(3),  vrb_is_full(3),  vrb_is_not_empty(3),  vrb_is_not_full(3),  vrb_move(3),  vrb_new(3),   vrb_new_opt(3),
       vrb_put(3),  vrb_put_all(3),  vrb_read(3),  vrb_read_min(3), vrb_resize(3), vrb_space_len(3), vrb_space_ptr(3), vrb_take(3), vrb_uninit(3),
       vrb_write_min(3), write(2)

vrb								    2002-09-30							      vrb_write(3)