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- /* -*- mode:c; c-file-style:"k&r"; c-basic-offset: 4; tab-width:4; indent-tabs-mode:nil; mode:auto-fill; fill-column:78; -*- */
- /* vim: set ts=4 sw=4 et tw=78 fo=cqt wm=0: */
- /* Copyright (C) 2014 Stony Brook University
- This file is part of Graphene Library OS.
- Graphene Library OS is free software: you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public License
- as published by the Free Software Foundation, either version 3 of the
- License, or (at your option) any later version.
- Graphene Library OS 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 Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>. */
- #ifndef API_H
- #define API_H
- #include <stddef.h>
- #include <stdint.h>
- #include <stdarg.h>
- /* Macros */
- #ifndef likely
- # define likely(x) __builtin_expect((!!(x)),1)
- #endif
- #ifndef unlikely
- # define unlikely(x) __builtin_expect((!!(x)),0)
- #endif
- #define __alloca __builtin_alloca
- #define XSTRINGIFY(x) STRINGIFY(x)
- #define STRINGIFY(x) #x
- #define static_strlen(str) (sizeof(str) - 1)
- /* Libc functions */
- /* Libc String functions string.h/stdlib.h */
- size_t strnlen (const char *str, size_t maxlen);
- size_t strlen (const char *str);
- long strtol (const char *s, char **endptr, int base);
- int atoi (const char *nptr);
- long int atol (const char *nptr);
- char * strchr (const char *s, int c_in);
- void * memcpy (void *dstpp, const void *srcpp, size_t len);
- void * memmove (void *dstpp, const void *srcpp, size_t len);
- void * memset (void *dstpp, int c, size_t len);
- int memcmp (const void *s1, const void *s2, size_t len);
- /* Libc memory allocation functions. stdlib.h. */
- void *malloc(size_t size);
- void free(void *ptr);
- void *calloc(size_t nmemb, size_t size);
- /* Some useful macro */
- /* force failure if str is not a static string */
- #define force_static(str) ("" str "")
- /* check if the var is exactly the same as the static string */
- #define strcmp_static(var, str) \
- (!memcmp((var), force_static(str), static_strlen(force_static(str)) + 1))
- /* check if the var starts with the static string */
- #define strpartcmp_static(var, str) \
- (!memcmp((var), force_static(str), static_strlen(force_static(str))))
- /* copy static string and return the address of the null end (null if the dest
- * is not large enough).*/
- #define strcpy_static(var, str, max) \
- (static_strlen(force_static(str)) + 1 > max ? NULL : \
- memcpy((var), force_static(str), static_strlen(force_static(str)) + 1) + \
- static_strlen(force_static(str)))
- /* Libc printf functions. stdio.h/stdarg.h. */
- void fprintfmt (int (*_fputch)(void *, int, void *), void * f, void * putdat,
- const char * fmt, ...);
- void vfprintfmt (int (*_fputch)(void *, int, void *), void * f, void * putdat,
- const char * fmt, va_list *ap);
- int snprintf (char * buf, int n, const char * fmt, ...);
- /* Miscelleneous */
- int inet_pton4 (const char *src, int len, void *dst);
- int inet_pton6 (const char *src, int len, void *dst);
- uint32_t __htonl (uint32_t x);
- uint32_t __ntohl (uint32_t x);
- uint16_t __htons (uint16_t x);
- uint16_t __ntohs (uint16_t x);
- extern const char * const * sys_errlist_internal;
- /* Graphene functions */
- int get_norm_path (const char * path, char * buf, int offset, int size);
- int get_base_name (const char * path, char * buf, int size);
- /* Loading configs / manifests */
- #include <list.h>
- struct config;
- DEFINE_LISTP(config);
- struct config_store {
- LISTP_TYPE(config) root;
- LISTP_TYPE(config) entries;
- void * raw_data;
- int raw_size;
- void * (*malloc) (size_t);
- void (*free) (void *);
- };
- int read_config (struct config_store * store, int (*filter) (const char *, int),
- const char ** errstring);
- int free_config (struct config_store * store);
- int copy_config (struct config_store * store, struct config_store * new_store);
- int write_config (void * file, int (*write) (void *, void *, int),
- struct config_store * store);
- int get_config (struct config_store * cfg, const char * key,
- char * val_buf, int size);
- int get_config_entries (struct config_store * cfg, const char * key,
- char * key_buf);
- int get_config_entries_size (struct config_store * cfg, const char * key);
- int set_config (struct config_store * cfg, const char * key, const char * val);
- #define CONFIG_MAX 4096
- #endif /* API_H */
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