kc3-lang/libxkbcommon/src/context.h

Branch : - branch - android master - tag -

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• Author : Peter Hutterer
  Date : 2019-09-30 15:39:08
  Hash : 67b538dd
  Message : context: add a helper function to return the default system include path No functional changes but we'll need that same lookup in the rules file include handling in a future patch. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

• src/context.h

• /*
   * 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>
   */
  
  #ifndef CONTEXT_H
  #define CONTEXT_H
  
  #include "atom.h"
  
  struct xkb_context {
      int refcnt;
  
      ATTR_PRINTF(3, 0) void (*log_fn)(struct xkb_context *ctx,
                                       enum xkb_log_level level,
                                       const char *fmt, va_list args);
      enum xkb_log_level log_level;
      int log_verbosity;
      void *user_data;
  
      struct xkb_rule_names names_dflt;
  
      darray(char *) includes;
      darray(char *) failed_includes;
  
      struct atom_table *atom_table;
  
      /* Buffer for the *Text() functions. */
      char text_buffer[2048];
      size_t text_next;
  
      unsigned int use_environment_names : 1;
  };
  
  unsigned int
  xkb_context_num_failed_include_paths(struct xkb_context *ctx);
  
  const char *
  xkb_context_failed_include_path_get(struct xkb_context *ctx,
                                      unsigned int idx);
  
  const char *
  xkb_context_include_path_get_system_path(struct xkb_context *ctx);
  
  /*
   * Returns XKB_ATOM_NONE if @string was not previously interned,
   * otherwise returns the atom.
   */
  xkb_atom_t
  xkb_atom_lookup(struct xkb_context *ctx, const char *string);
  
  xkb_atom_t
  xkb_atom_intern(struct xkb_context *ctx, const char *string, size_t len);
  
  #define xkb_atom_intern_literal(ctx, literal) \
      xkb_atom_intern((ctx), (literal), sizeof(literal) - 1)
  
  /**
   * If @string is dynamically allocated, NUL-terminated, free'd immediately
   * after being interned, and not used afterwards, use this function
   * instead of xkb_atom_intern to avoid some unnecessary allocations.
   * The caller should not use or free the passed in string afterwards.
   */
  xkb_atom_t
  xkb_atom_steal(struct xkb_context *ctx, char *string);
  
  const char *
  xkb_atom_text(struct xkb_context *ctx, xkb_atom_t atom);
  
  char *
  xkb_context_get_buffer(struct xkb_context *ctx, size_t size);
  
  ATTR_PRINTF(4, 5) void
  xkb_log(struct xkb_context *ctx, enum xkb_log_level level, int verbosity,
          const char *fmt, ...);
  
  void
  xkb_context_sanitize_rule_names(struct xkb_context *ctx,
                                  struct xkb_rule_names *rmlvo);
  
  /*
   * The format is not part of the argument list in order to avoid the
   * "ISO C99 requires rest arguments to be used" warning when only the
   * format is supplied without arguments. Not supplying it would still
   * result in an error, though.
   */
  #define log_dbg(ctx, ...) \
      xkb_log((ctx), XKB_LOG_LEVEL_DEBUG, 0, __VA_ARGS__)
  #define log_info(ctx, ...) \
      xkb_log((ctx), XKB_LOG_LEVEL_INFO, 0, __VA_ARGS__)
  #define log_warn(ctx, ...) \
      xkb_log((ctx), XKB_LOG_LEVEL_WARNING, 0,  __VA_ARGS__)
  #define log_err(ctx, ...) \
      xkb_log((ctx), XKB_LOG_LEVEL_ERROR, 0,  __VA_ARGS__)
  #define log_wsgo(ctx, ...) \
      xkb_log((ctx), XKB_LOG_LEVEL_CRITICAL, 0, __VA_ARGS__)
  #define log_vrb(ctx, vrb, ...) \
      xkb_log((ctx), XKB_LOG_LEVEL_WARNING, (vrb), __VA_ARGS__)
  
  /*
   * Variants which are prefixed by the name of the function they're
   * called from.
   * Here we must have the silly 1 variant.
   */
  #define log_err_func(ctx, fmt, ...) \
      log_err(ctx, "%s: " fmt, __func__, __VA_ARGS__)
  #define log_err_func1(ctx, fmt) \
      log_err(ctx, "%s: " fmt, __func__)
  
  #endif