fs.h File Reference

#include "httpd_opts.h"
#include "lwip/err.h"

Go to the source code of this file.

Classes
struct	fs_file

Macros
#define	FS_READ_EOF   -1
#define	FS_READ_DELAYED   -2
#define	FS_FILE_FLAGS_HEADER_INCLUDED   0x01
#define	FS_FILE_FLAGS_HEADER_PERSISTENT   0x02

Functions
err_t	fs_open (struct fs_file *file, const char *name)
void	fs_close (struct fs_file *file)
int	fs_bytes_left (struct fs_file *file)

Macro Definition Documentation

FS_READ_EOF

#define FS_READ_EOF   -1

FS_READ_DELAYED

#define FS_READ_DELAYED   -2

FS_FILE_FLAGS_HEADER_INCLUDED

#define FS_FILE_FLAGS_HEADER_INCLUDED   0x01

FS_FILE_FLAGS_HEADER_PERSISTENT

#define FS_FILE_FLAGS_HEADER_PERSISTENT   0x02

Function Documentation

fs_open()

err_t fs_open	(	struct fs_file *	file,
		const char *	name
	)

{
  const struct fsdata_file *f;
 
  if ((file == NULL) || (name == NULL)) {
     return ERR_ARG;
  }
 
#if LWIP_HTTPD_CUSTOM_FILES
  if (fs_open_custom(file, name)) {
    file->is_custom_file = 1;
    return ERR_OK;
  }
  file->is_custom_file = 0;
#endif /* LWIP_HTTPD_CUSTOM_FILES */
 
  for (f = FS_ROOT; f != NULL; f = f->next) {
    if (!strcmp(name, (const char *)f->name)) {
      file->data = (const char *)f->data;
      file->len = f->len;
      file->index = f->len;
      file->pextension = NULL;
      file->flags = f->flags;
#if HTTPD_PRECALCULATED_CHECKSUM
      file->chksum_count = f->chksum_count;
      file->chksum = f->chksum;
#endif /* HTTPD_PRECALCULATED_CHECKSUM */
#if LWIP_HTTPD_FILE_STATE
      file->state = fs_state_init(file, name);
#endif /* #if LWIP_HTTPD_FILE_STATE */
      return ERR_OK;
    }
  }
  /* file not found */
  return ERR_VAL;
}

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fs_close()

void fs_close

(

struct fs_file *

file

)

{
#if LWIP_HTTPD_CUSTOM_FILES
  if (file->is_custom_file) {
    fs_close_custom(file);
  }
#endif /* LWIP_HTTPD_CUSTOM_FILES */
#if LWIP_HTTPD_FILE_STATE
  fs_state_free(file, file->state);
#endif /* #if LWIP_HTTPD_FILE_STATE */
  LWIP_UNUSED_ARG(file);
}

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fs_bytes_left()

int fs_bytes_left

(

struct fs_file *

file

)

{
  return file->len - file->index;
}