213 lines
5.8 KiB
C
213 lines
5.8 KiB
C
/****************************************************************************
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* libs/libc/libc.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __LIBC_LIBC_H
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#define __LIBC_LIBC_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <limits.h>
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#include <semaphore.h>
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#include <nuttx/lib/lib.h>
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#include <nuttx/kmalloc.h>
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#include <nuttx/streams.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* This configuration directory is used in environment variable processing
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* when we need to reference the user's home directory. There are no user
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* directories in NuttX so, by default, this always refers to the root
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* directory.
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*/
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#ifndef CONFIG_LIB_HOMEDIR
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# define CONFIG_LIB_HOMEDIR "/"
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#endif
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/* The NuttX C library an be build in two modes: (1) as a standard, C-library
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* that can be used by normal, user-space applications, or (2) as a special,
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* kernel-mode C-library only used within the OS. If NuttX is not being
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* built as separated kernel- and user-space modules, then only the first
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* mode is supported.
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*/
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#if !defined(CONFIG_BUILD_FLAT) && defined(__KERNEL__)
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/* Domain-specific allocations */
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# define lib_malloc(s) kmm_malloc(s)
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# define lib_zalloc(s) kmm_zalloc(s)
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# define lib_realloc(p,s) kmm_realloc(p,s)
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# define lib_memalign(p,s) kmm_memalign(p,s)
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# define lib_free(p) kmm_free(p)
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/* User-accessible allocations */
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# define lib_umalloc(s) kumm_malloc(s)
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# define lib_uzalloc(s) kumm_zalloc(s)
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# define lib_urealloc(p,s) kumm_realloc(p,s)
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# define lib_umemalign(p,s) kumm_memalign(p,s)
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# define lib_ufree(p) kumm_free(p)
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#else
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/* Domain-specific allocations */
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# define lib_malloc(s) malloc(s)
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# define lib_zalloc(s) zalloc(s)
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# define lib_realloc(p,s) realloc(p,s)
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# define lib_memalign(p,s) memalign(p,s)
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# define lib_free(p) free(p)
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/* User-accessible allocations */
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# define lib_umalloc(s) malloc(s)
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# define lib_uzalloc(s) zalloc(s)
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# define lib_urealloc(p,s) realloc(p,s)
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# define lib_umemalign(p,s) memalign(p,s)
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# define lib_ufree(p) free(p)
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#endif
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#define LIB_BUFLEN_UNKNOWN INT_MAX
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/* Defined in lib_streamsem.c */
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#ifdef CONFIG_FILE_STREAM
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void stream_semtake(FAR struct streamlist *list);
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void stream_semgive(FAR struct streamlist *list);
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#endif
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/* Defined in lib_dtoa.c */
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#ifdef CONFIG_LIBC_FLOATINGPOINT
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FAR char *__dtoa(double d, int mode, int ndigits, FAR int *decpt,
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FAR int *sign, FAR char **rve);
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#endif
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/* Defined in lib_fopen.c */
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int lib_mode2oflags(FAR const char *mode);
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/* Defined in lib_libfwrite.c */
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ssize_t lib_fwrite(FAR const void *ptr, size_t count, FAR FILE *stream);
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/* Defined in lib_libfread.c */
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ssize_t lib_fread(FAR void *ptr, size_t count, FAR FILE *stream);
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/* Defined in lib_libfgets.c */
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FAR char *lib_fgets(FAR char *buf, size_t buflen, FILE *stream,
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bool keepnl, bool consume);
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/* Defined in lib_libfflush.c */
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ssize_t lib_fflush(FAR FILE *stream, bool bforce);
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/* Defined in lib_rdflush.c */
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int lib_rdflush(FAR FILE *stream);
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/* Defined in lib_wrflush.c */
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int lib_wrflush(FAR FILE *stream);
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/* Defined in lib_libgetbase.c */
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int lib_getbase(FAR const char *nptr, FAR const char **endptr);
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/* Defined in lib_skipspace.c */
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void lib_skipspace(FAR const char **pptr);
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/* Defined in lib_isbasedigit.c */
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bool lib_isbasedigit(int ch, int base, FAR int *value);
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/* Defined in lib_checkbase.c */
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int lib_checkbase(int base, FAR const char **pptr);
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/* Defined in lib_expi.c */
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#ifdef CONFIG_LIBM
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float lib_expif(size_t n);
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double lib_expi(size_t n);
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#endif
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/* Defined in lib_libsqrtapprox.c */
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#ifdef CONFIG_LIBM
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float lib_sqrtapprox(float x);
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#endif
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/* Defined in lib_parsehostfile.c */
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#ifdef CONFIG_NETDB_HOSTFILE
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struct hostent;
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ssize_t lib_parse_hostfile(FAR FILE *stream, FAR struct hostent *host,
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FAR char *buf, size_t buflen);
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#endif
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#ifndef CONFIG_DISABLE_ENVIRON
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int lib_restoredir(void);
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#endif
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __LIBC_LIBC_H */
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