1 /* 2 * Copyright (C) 2002 2003 2004 2005 2006 2011, Magnus Hjorth 3 * 4 * This file is part of mhWaveEdit. 5 * 6 * mhWaveEdit is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * mhWaveEdit is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with mhWaveEdit; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA 19 */ 20 21 /* GTK wrappers around the standard I/O functions, and some other file-related 22 * stuff. */ 23 24 #ifndef GTKFILES_H_INCLUDED 25 #define GTKFILES_H_INCLUDED 26 27 #include <stdio.h> 28 #include <stdlib.h> 29 #include <sys/types.h> 30 #include <gtk/gtk.h> 31 32 typedef struct { 33 int fd; 34 char *filename; 35 } EFILE; 36 37 #define EFILE_READ 0 38 #define EFILE_WRITE 1 39 #define EFILE_APPEND 2 40 41 gboolean xunlink(char *filename); 42 43 /* Renames oldname into newname. If oldname and newname are on 44 * different file systems, and allow_copy is TRUE, the file will be copied. 45 * 46 * Return value: 47 * 0. Success. 48 * 1. Failure. (an error message has already been displayed) 49 * 2. allow_copy is FALSE and the filenames were not on the same filesystem. 50 */ 51 52 gint xrename(char *oldname, char *newname, gboolean allow_copy); 53 54 /* This flag is TRUE by default. If it is FALSE, e_fopen with mode!=EFILE_READ 55 * and e_fwrite will not popup error dialog boxes when an error occurs. If an 56 * error other than disk full occurs, a warning message is issued to stderr. */ 57 58 extern gboolean report_write_errors; 59 60 int xopen(char *filename, int flags, int mode); 61 62 /* Constants for openmode are defined above (EFILE_READ/WRITE/APPEND) */ 63 EFILE *e_fopen(char *filename, int openmode); 64 65 EFILE *e_fopen_fd(int fd, char *virtual_filename); 66 gboolean e_fclose(EFILE *stream); 67 gboolean e_fclose_remove(EFILE *stream); 68 void close_all_files(void); /* Used after forking */ 69 void close_all_files_except(int *fds, int count); 70 gboolean e_fseek(EFILE *stream, off_t offset, int whence); 71 gboolean e_fread(void *data, size_t size, EFILE *stream); 72 gboolean e_fwrite(void *data, size_t size, EFILE *stream); 73 gboolean e_fwrite0(size_t size, EFILE *stream); 74 off_t e_ftell(EFILE *stream); 75 long int e_readline(gchar **line, size_t *size, EFILE *stream); 76 gboolean e_copydata(EFILE *from, EFILE *to, off_t bytes); 77 gboolean errdlg_copyfile(gchar *from, gchar *to); 78 79 gboolean e_fread_bswap(void *data, size_t size, EFILE *stream); 80 gboolean e_fwrite_bswap(void *data, size_t size, EFILE *stream); 81 82 gboolean is_same_file(char *filename1, char *filename2); 83 off_t errdlg_filesize(gchar *filename); 84 85 gboolean file_exists(char *filename); 86 gboolean file_is_normal(char *filename); 87 gboolean file_is_directory(char *filename); 88 89 gboolean program_exists(char *progname); 90 91 /* Meant to be called from signal handlers when inside get_filename */ 92 void get_filename_modify_extension(gchar *new_extension); 93 gchar *get_filename(gchar *current_name, gchar *filemask, gchar *title_text, 94 gboolean savemode, GtkWidget *custom_widget); 95 gchar *get_directory(gchar *current_name, gchar *title_text); 96 97 gchar *make_filename_rooted(gchar *name); 98 99 gboolean fd_canread(int fd); 100 gboolean fd_canwrite(int fd); 101 102 #if (G_BYTE_ORDER == G_BIG_ENDIAN) 103 #define e_fwrite_le(a,b,c) e_fwrite_bswap(a,b,c) 104 #define e_fread_le(a,b,c) e_fread_bswap(a,b,c) 105 #define e_fwrite_be(a,b,c) e_fwrite(a,b,c) 106 #define e_fread_be(a,b,c) e_fread(a,b,c) 107 #else 108 #define e_fwrite_le(a,b,c) e_fwrite(a,b,c) 109 #define e_fread_le(a,b,c) e_fread(a,b,c) 110 #define e_fwrite_be(a,b,c) e_fwrite_bswap(a,b,c) 111 #define e_fread_be(a,b,c) e_fread_bswap(a,b,c) 112 #endif 113 114 #define e_fwrite_xe(a,b,c,be) ((be)?e_fwrite_be(a,b,c):e_fwrite_le(a,b,c)) 115 #define e_fread_xe(a,b,c,be) ((be)?e_fread_be(a,b,c):e_fread_le(a,b,c)) 116 117 gboolean e_fread_u16_xe(guint16 *data, EFILE *stream, gboolean be); 118 gboolean e_fread_u32_xe(guint32 *data, EFILE *stream, gboolean be); 119 120 #endif 121