michallenc commented on code in PR #10602: URL: https://github.com/apache/nuttx/pull/10602#discussion_r1350311535
########## libs/libc/stdio/lib_fopencookie.c: ########## @@ -0,0 +1,181 @@ +/**************************************************************************** + * libs/libc/stdio/lib_fopencookie.c + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. The + * ASF licenses this file to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance with the + * License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the + * License for the specific language governing permissions and limitations + * under the License. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <fcntl.h> +#include <string.h> +#include <assert.h> +#include <errno.h> +#include <nuttx/tls.h> + +#include "libc.h" + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +static ssize_t freadcookie(FAR void *s, FAR char *buf, size_t nbytes); +static ssize_t fwritecookie(FAR void *s, FAR const char *buf, size_t nbytes); +static off_t fseekcookie(FAR void *s, off_t offset, int whence); +static int fclosecookie(FAR void *s); + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +static FAR FILE *fopencookie_init_stream(int oflags) +{ + FAR FILE *stream; + + stream = lib_zalloc(sizeof(FILE)); + if (stream == NULL) + { + set_errno(-ENOMEM); + return NULL; + } + + nxrmutex_init(&stream->fs_lock); + +#ifndef CONFIG_STDIO_DISABLE_BUFFERING +#if CONFIG_STDIO_BUFFER_SIZE > 0 + /* Set up pointers */ + + stream->fs_bufstart = stream->fs_buffer; + stream->fs_bufend = &stream->fs_bufstart[CONFIG_STDIO_BUFFER_SIZE]; + stream->fs_bufpos = stream->fs_bufstart; + stream->fs_bufread = stream->fs_bufstart; + stream->fs_flags = __FS_FLAG_UBF; /* Fake setvbuf and fclose */ + +#ifdef CONFIG_STDIO_LINEBUFFER + /* Setup buffer flags */ + + stream->fs_flags |= __FS_FLAG_LBF; /* Line buffering */ + +#endif /* CONFIG_STDIO_LINEBUFFER */ +#endif /* CONFIG_STDIO_BUFFER_SIZE > 0 */ +#endif /* CONFIG_STDIO_DISABLE_BUFFERING */ + + /* Save the file description and open flags. Setting the + * file descriptor locks this stream. + */ + + stream->fs_fd = -1; + stream->fs_oflags = oflags; + + return stream; +} + +static ssize_t freadcookie(FAR void *s, FAR char *buf, size_t nbytes) +{ + FAR FILE *stream = (FAR FILE *)s; + FAR struct cookie_s *cookie = (FAR struct cookie_s *)&stream->fs_cookie; + int ret; + + DEBUGASSERT(cookie->cookie != NULL && cookie->cookie_io.read != NULL); + + ret = cookie->cookie_io.read(cookie->cookie, buf, nbytes); + return ret; +} + +static ssize_t fwritecookie(FAR void *s, FAR const char *buf, size_t nbytes) +{ + FAR FILE *stream = (FAR FILE *)s; + FAR struct cookie_s *cookie = (FAR struct cookie_s *)&stream->fs_cookie; + int ret; + + DEBUGASSERT(cookie->cookie != NULL && cookie->cookie_io.write != NULL); + + ret = cookie->cookie_io.write(cookie->cookie, buf, nbytes); + return ret; +} + +static off_t fseekcookie(FAR void *s, off_t offset, int whence) +{ + FAR FILE *stream = (FAR FILE *)s; + FAR struct cookie_s *cookie = (FAR struct cookie_s *)&stream->fs_cookie; + int ret; + + DEBUGASSERT(cookie->cookie != NULL && cookie->cookie_io.seek != NULL); + + ret = cookie->cookie_io.seek(cookie->cookie, &offset, whence); + return ret; +} + +static int fclosecookie(FAR void *s) Review Comment: Done ########## libs/libc/stdio/lib_fopencookie.c: ########## @@ -0,0 +1,181 @@ +/**************************************************************************** + * libs/libc/stdio/lib_fopencookie.c + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. The + * ASF licenses this file to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance with the + * License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the + * License for the specific language governing permissions and limitations + * under the License. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <fcntl.h> +#include <string.h> +#include <assert.h> +#include <errno.h> +#include <nuttx/tls.h> + +#include "libc.h" + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +static ssize_t freadcookie(FAR void *s, FAR char *buf, size_t nbytes); +static ssize_t fwritecookie(FAR void *s, FAR const char *buf, size_t nbytes); +static off_t fseekcookie(FAR void *s, off_t offset, int whence); +static int fclosecookie(FAR void *s); + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +static FAR FILE *fopencookie_init_stream(int oflags) +{ + FAR FILE *stream; + + stream = lib_zalloc(sizeof(FILE)); Review Comment: Done. -- This is an automated message from the Apache Git Service. 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