libexplain  1.4.D001
Functions
libexplain/buffer/errno/readv.c File Reference
#include <libexplain/ac/errno.h>
#include <libexplain/ac/limits.h>
#include <libexplain/ac/stdio.h>
#include <libexplain/ac/sys/uio.h>
#include <libexplain/ac/unistd.h>
#include <libexplain/buffer/efault.h>
#include <libexplain/buffer/eintr.h>
#include <libexplain/buffer/einval.h>
#include <libexplain/buffer/enosys.h>
#include <libexplain/buffer/errno/read.h>
#include <libexplain/buffer/errno/readv.h>
#include <libexplain/buffer/fildes.h>
#include <libexplain/buffer/int.h>
#include <libexplain/buffer/iovec.h>
#include <libexplain/buffer/long_long.h>
#include <libexplain/buffer/ssize_t.h>
#include <libexplain/explanation.h>
#include <libexplain/is_efault.h>
#include <libexplain/option.h>

Go to the source code of this file.

Functions

static void explain_buffer_errno_readv_system_call (explain_string_buffer_t *sb, int errnum, int fildes, const struct iovec *data, int data_size)
static void explain_buffer_errno_readv_explanation (explain_string_buffer_t *sb, int errnum, const char *syscall_name, int fildes, const struct iovec *data, int data_size)
void explain_buffer_errno_readv (explain_string_buffer_t *sb, int errnum, int fildes, const struct iovec *data, int data_size)

Function Documentation

void explain_buffer_errno_readv ( explain_string_buffer_t sb,
int  errnum,
int  fildes,
const struct iovec *  iov,
int  iovcnt 
)

The explain_buffer_errno_readv function is used to obtain an explanation of an error returned by the readv(2) system call. The least the message will contain is the value of strerror(errnum), but usually it will do much better, and indicate the underlying cause in more detail.

Parameters:
sbThe string buffer to print the message into. If a suitable buffer is specified, this function is thread safe.
errnumThe error value to be decoded, usually obtained from the errno global variable just before this function is called. This is necessary if you need to call any code between the system call to be explained and this function, because many libc functions will alter the value of errno.
fildesThe original fildes, exactly as passed to the readv(2) system call.
iovThe original iov, exactly as passed to the readv(2) system call.
iovcntThe original iovcnt, exactly as passed to the readv(2) system call.

Definition at line 187 of file readv.c.

static void explain_buffer_errno_readv_explanation ( explain_string_buffer_t sb,
int  errnum,
const char *  syscall_name,
int  fildes,
const struct iovec *  data,
int  data_size 
) [static]

Definition at line 57 of file readv.c.

static void explain_buffer_errno_readv_system_call ( explain_string_buffer_t sb,
int  errnum,
int  fildes,
const struct iovec *  data,
int  data_size 
) [static]

Definition at line 42 of file readv.c.