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/*
Copyright 2006,2007,2008,2012 Martin Pärtel <martin.partel@gmail.com>
This file is part of bindfs.
bindfs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
bindfs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with bindfs. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef INC_BINDFS_MISC_H
#define INC_BINDFS_MISC_H
/* Counts the number of times ch occurs in s. */
int count_chars(const char *s, char ch);
/* Counts the number of times sub occurs in s. */
int count_substrs(const char *s, const char *sub);
/* Creates a duplicate string of all the characters in s before
an end character is reached. */
char *strdup_until(const char *s, const char *endchars);
/* Returns a pointer to the first character after the
final slash of path, or path itself if it contains no slashes.
If the path ends with a slash, then the result is an empty
string.
Returns NULL if path is NULL. */
const char *my_basename(const char *path);
/* A thread-safe version of dirname, with slightly different behavior.
If path is ".", returns "..".
If path is "/", returns "/".
If path has an initial slash but no other slashes, returns "/".
If path contains a slash, replaces the last slash with a '\0' and returns path.
Otherwise, returns ".". */
const char *my_dirname(char *path);
/* Reallocs `*array` (may be NULL) to be at least one larger
than `*capacity` (may be 0) and stores the new capacity
in `*capacity`. */
#define grow_array(array, capacity, member_size) grow_array_impl((void**)(array), (capacity), (member_size))
void grow_array_impl(void **array, int* capacity, int member_size);
/* Simple arena allocation for when it's convenient to
grow multiple times and deallocate all at once. */
struct arena {
char *ptr;
int size;
int capacity;
};
#define ARENA_INITIALIZER { NULL, 0, 0 }
void init_arena(struct arena *a, int initial_capacity);
void grow_arena(struct arena *a, int amount);
int append_to_arena(struct arena *a, void *src, int src_size);
void free_arena(struct arena *a);
#define ARENA_GET(a, offset) (&(a).ptr[(offset)])
#endif
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