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/*
* Copyright © 2012 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Author: Daniel Stone <daniel@fooishbar.org>
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <unistd.h>
#include "xkb-priv.h"
#include "atom.h"
struct xkb_context {
int refcnt;
darray(char *) includes;
/* xkbcomp needs to assign sequential IDs to XkbFile's it creates. */
unsigned file_id;
struct atom_table *atom_table;
};
/**
* Append one directory to the context's include path.
*/
_X_EXPORT int
xkb_context_include_path_append(struct xkb_context *ctx, const char *path)
{
struct stat stat_buf;
int err;
char *tmp;
err = stat(path, &stat_buf);
if (err != 0)
return 0;
if (!S_ISDIR(stat_buf.st_mode))
return 0;
#if defined(HAVE_EACCESS)
if (eaccess(path, R_OK | X_OK) != 0)
return 0;
#elif defined(HAVE_EUIDACCESS)
if (euidaccess(path, R_OK | X_OK) != 0)
return 0;
#endif
tmp = strdup(path);
if (!tmp)
return 0;
darray_append(ctx->includes, tmp);
return 1;
}
/**
* Append the default include directories to the context.
*/
_X_EXPORT int
xkb_context_include_path_append_default(struct xkb_context *ctx)
{
const char *home;
char *user_path;
int err;
(void) xkb_context_include_path_append(ctx, DFLT_XKB_CONFIG_ROOT);
home = getenv("HOME");
if (!home)
return 1;
err = asprintf(&user_path, "%s/.xkb", home);
if (err <= 0)
return 1;
(void) xkb_context_include_path_append(ctx, user_path);
free(user_path);
return 1;
}
/**
* Remove all entries in the context's include path.
*/
_X_EXPORT void
xkb_context_include_path_clear(struct xkb_context *ctx)
{
char **path;
darray_foreach(path, ctx->includes)
free(*path);
darray_free(ctx->includes);
}
/**
* xkb_context_include_path_clear() + xkb_context_include_path_append_default()
*/
_X_EXPORT int
xkb_context_include_path_reset_defaults(struct xkb_context *ctx)
{
xkb_context_include_path_clear(ctx);
return xkb_context_include_path_append_default(ctx);
}
/**
* Returns the number of entries in the context's include path.
*/
_X_EXPORT unsigned int
xkb_context_num_include_paths(struct xkb_context *ctx)
{
return darray_size(ctx->includes);
}
/**
* Returns the given entry in the context's include path, or NULL if an
* invalid index is passed.
*/
_X_EXPORT const char *
xkb_context_include_path_get(struct xkb_context *ctx, unsigned int idx)
{
if (idx >= xkb_context_num_include_paths(ctx))
return NULL;
return darray_item(ctx->includes, idx);
}
unsigned
xkb_context_take_file_id(struct xkb_context *ctx)
{
return ctx->file_id++;
}
/**
* Take a new reference on the context.
*/
_X_EXPORT struct xkb_context *
xkb_context_ref(struct xkb_context *ctx)
{
ctx->refcnt++;
return ctx;
}
/**
* Drop an existing reference on the context, and free it if the refcnt is
* now 0.
*/
_X_EXPORT void
xkb_context_unref(struct xkb_context *ctx)
{
if (--ctx->refcnt > 0)
return;
xkb_context_include_path_clear(ctx);
atom_table_free(ctx->atom_table);
free(ctx);
}
/**
* Create a new context.
*/
_X_EXPORT struct xkb_context *
xkb_context_new(enum xkb_context_flags flags)
{
struct xkb_context *ctx = calloc(1, sizeof(*ctx));
if (!ctx)
return NULL;
ctx->refcnt = 1;
if (!(flags & XKB_CONTEXT_NO_DEFAULT_INCLUDES) &&
!xkb_context_include_path_append_default(ctx)) {
xkb_context_unref(ctx);
return NULL;
}
ctx->atom_table = atom_table_new();
if (!ctx->atom_table) {
xkb_context_unref(ctx);
return NULL;
}
return ctx;
}
xkb_atom_t
xkb_atom_intern(struct xkb_context *ctx, const char *string)
{
return atom_intern(ctx->atom_table, string);
}
char *
xkb_atom_strdup(struct xkb_context *ctx, xkb_atom_t atom)
{
return atom_strdup(ctx->atom_table, atom);
}
const char *
xkb_atom_text(struct xkb_context *ctx, xkb_atom_t atom)
{
return atom_text(ctx->atom_table, atom);
}
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