Yonggang Luo
b4bc23078a
Notable changes: - Remove the comments in port impl, that's easily getting to in-consistence - Sync the jerryscript-port.h and 05.PORT-API.md - Fixes the invalid comment in port codes JerryScript-DCO-1.0-Signed-off-by: Yonggang Luo luoyonggang@gmail.com
138 lines
3.7 KiB
C
138 lines
3.7 KiB
C
/* Copyright JS Foundation and other contributors, http://js.foundation
|
|
*
|
|
* Licensed 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.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "jerryscript-port.h"
|
|
|
|
#if defined(__GLIBC__) || defined(_WIN32)
|
|
#include <sys/stat.h>
|
|
|
|
#ifndef S_ISDIR
|
|
#define S_ISDIR(mode) (((mode) &S_IFMT) == S_IFDIR)
|
|
#endif /* !defined(S_ISDIR) */
|
|
#endif /* __GLIBC__ */
|
|
|
|
/**
|
|
* Determines the size of the given file.
|
|
* @return size of the file
|
|
*/
|
|
static jerry_size_t
|
|
jerry_port_get_file_size (FILE *file_p) /**< opened file */
|
|
{
|
|
fseek (file_p, 0, SEEK_END);
|
|
long size = ftell (file_p);
|
|
fseek (file_p, 0, SEEK_SET);
|
|
|
|
return (jerry_size_t) size;
|
|
} /* jerry_port_get_file_size */
|
|
|
|
jerry_char_t *JERRY_ATTR_WEAK
|
|
jerry_port_source_read (const char *file_name_p, jerry_size_t *out_size_p)
|
|
{
|
|
/* TODO(dbatyai): Temporary workaround for nuttx target
|
|
* The nuttx target builds and copies the jerryscript libraries as a separate build step, which causes linking issues
|
|
* later due to different libc libraries. It should incorporate the amalgam sources into the main nuttx build so that
|
|
* the correct libraries are used, then this guard should be removed from here and also from the includes. */
|
|
#if defined(__GLIBC__) || defined(_WIN32)
|
|
struct stat stat_buffer;
|
|
if (stat (file_name_p, &stat_buffer) == -1 || S_ISDIR (stat_buffer.st_mode))
|
|
{
|
|
return NULL;
|
|
}
|
|
#endif /* __GLIBC__ */
|
|
|
|
FILE *file_p = fopen (file_name_p, "rb");
|
|
|
|
if (file_p == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
jerry_size_t file_size = jerry_port_get_file_size (file_p);
|
|
jerry_char_t *buffer_p = (jerry_char_t *) malloc (file_size);
|
|
|
|
if (buffer_p == NULL)
|
|
{
|
|
fclose (file_p);
|
|
return NULL;
|
|
}
|
|
|
|
size_t bytes_read = fread (buffer_p, 1u, file_size, file_p);
|
|
|
|
if (bytes_read != file_size)
|
|
{
|
|
fclose (file_p);
|
|
free (buffer_p);
|
|
return NULL;
|
|
}
|
|
|
|
fclose (file_p);
|
|
*out_size_p = (jerry_size_t) bytes_read;
|
|
|
|
return buffer_p;
|
|
} /* jerry_port_source_read */
|
|
|
|
void JERRY_ATTR_WEAK
|
|
jerry_port_source_free (uint8_t *buffer_p)
|
|
{
|
|
free (buffer_p);
|
|
} /* jerry_port_source_free */
|
|
|
|
/**
|
|
* These functions provide generic implementation for paths and are only enabled when the compiler support weak symbols,
|
|
* and we are not building for a platform that has platform specific versions.
|
|
*/
|
|
#if defined(JERRY_WEAK_SYMBOL_SUPPORT) && !(defined(__unix__) || defined(__APPLE__) || defined(_WIN32))
|
|
|
|
jerry_char_t *JERRY_ATTR_WEAK
|
|
jerry_port_path_normalize (const jerry_char_t *path_p, jerry_size_t path_size)
|
|
{
|
|
jerry_char_t *buffer_p = (jerry_char_t *) malloc (path_size + 1);
|
|
|
|
if (buffer_p == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
/* Also copy terminating zero byte. */
|
|
memcpy (buffer_p, path_p, path_size + 1);
|
|
|
|
return buffer_p;
|
|
} /* jerry_port_path_normalize */
|
|
|
|
void JERRY_ATTR_WEAK
|
|
jerry_port_path_free (jerry_char_t *path_p)
|
|
{
|
|
free (path_p);
|
|
} /* jerry_port_path_free */
|
|
|
|
jerry_size_t JERRY_ATTR_WEAK
|
|
jerry_port_path_base (const jerry_char_t *path_p)
|
|
{
|
|
const jerry_char_t *basename_p = (jerry_char_t *) strrchr ((char *) path_p, '/') + 1;
|
|
|
|
if (basename_p == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
return (jerry_size_t) (basename_p - path_p);
|
|
} /* jerry_port_path_base */
|
|
|
|
#endif /* defined(JERRY_WEAK_SYMBOL_SUPPORT) && !(defined(__unix__) || defined(__APPLE__) || defined(_WIN32)) */
|