buf_mmap.c File Reference

#include <rz_util.h>

Go to the source code of this file.

Classes
struct	buf_mmap_user
struct	buf_mmap_priv

Functions
static struct buf_mmap_priv *	get_priv_mmap (RzBuffer *b)
static bool	buf_mmap_init (RzBuffer *b, const void *user)
static bool	buf_mmap_fini (RzBuffer *b)
static bool	buf_mmap_resize (RzBuffer *b, ut64 newsize)
static ut8 *	buf_mmap_get_whole_buf (RzBuffer *b, ut64 *size)

Variables
static const RzBufferMethods	buffer_mmap_methods

Function Documentation

buf_mmap_fini()

static bool buf_mmap_fini ( RzBuffer *  b )

static

Definition at line 45 of file buf_mmap.c.

                                       {
    struct buf_mmap_priv *priv = get_priv_mmap(b);
    rz_file_mmap_free(priv->mmap);
    RZ_FREE(b->priv);
    return true;
}

References b, get_priv_mmap(), buf_mmap_priv::mmap, rz_file_mmap_free(), and RZ_FREE.

buf_mmap_get_whole_buf()

static ut8* buf_mmap_get_whole_buf ( RzBuffer *  b, ut64 *  size  )

static

Definition at line 65 of file buf_mmap.c.

                                                            {
    struct buf_mmap_priv *priv = get_priv_mmap(b);
    if (size) {
        *size = priv->mmap->len;
    }
    return priv->mmap->buf;
}

References b, rz_mmap_t::buf, get_priv_mmap(), rz_mmap_t::len, and buf_mmap_priv::mmap.

buf_mmap_init()

static bool buf_mmap_init ( RzBuffer *  b, const void *  user  )

static

Definition at line 25 of file buf_mmap.c.

                                                         {
    const struct buf_mmap_user *u = (const struct buf_mmap_user *)user;
    struct buf_mmap_priv *priv = RZ_NEW0(struct buf_mmap_priv);
    if (!priv) {
        return false;
    }
 
    priv->mmap = rz_file_mmap(u->filename, u->perm, u->mode, 0);
    if (!priv->mmap) {
        free(priv);
        return false;
    }
    priv->bytes_priv.buf = priv->mmap->buf;
    priv->bytes_priv.length = priv->mmap->len;
    priv->bytes_priv.offset = 0;
    b->priv = priv;
    b->fd = priv->mmap->fd;
    return true;
}

References b, rz_mmap_t::buf, buf_bytes_priv::buf, buf_mmap_priv::bytes_priv, rz_mmap_t::fd, buf_mmap_user::filename, free(), rz_mmap_t::len, buf_bytes_priv::length, buf_mmap_priv::mmap, buf_mmap_user::mode, buf_bytes_priv::offset, buf_mmap_user::perm, rz_file_mmap(), and RZ_NEW0.

buf_mmap_resize()

static bool buf_mmap_resize ( RzBuffer *  b, ut64  newsize  )

static

Definition at line 52 of file buf_mmap.c.

                                                       {
    struct buf_mmap_priv *priv = get_priv_mmap(b);
    if (newsize > priv->mmap->len) {
        ut8 *t = rz_file_mmap_resize(priv->mmap, newsize);
        if (!t) {
            return false;
        }
        priv->bytes_priv.buf = t;
    }
    priv->bytes_priv.length = newsize;
    return true;
}

References b, buf_bytes_priv::buf, buf_mmap_priv::bytes_priv, get_priv_mmap(), rz_mmap_t::len, buf_bytes_priv::length, buf_mmap_priv::mmap, and rz_file_mmap_resize().

get_priv_mmap()

static struct buf_mmap_priv* get_priv_mmap ( RzBuffer *  b )

inlinestatic

Definition at line 19 of file buf_mmap.c.

                                                               {
    struct buf_mmap_priv *priv = (struct buf_mmap_priv *)b->priv;
    rz_warn_if_fail(priv);
    return priv;
}

References b, and rz_warn_if_fail.

Referenced by buf_mmap_fini(), buf_mmap_get_whole_buf(), and buf_mmap_resize().

Variable Documentation

buffer_mmap_methods

const RzBufferMethods buffer_mmap_methods

static

Initial value:

= {
    .init = buf_mmap_init,
    .fini = buf_mmap_fini,
    .read = buf_bytes_read,
    .write = buf_bytes_write,
    .get_size = buf_bytes_get_size,
    .resize = buf_mmap_resize,
    .seek = buf_bytes_seek,
    .get_whole_buf = buf_mmap_get_whole_buf
}

Definition at line 73 of file buf_mmap.c.

Referenced by new_buffer().