src/utils.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * utils.h:
   4  *
   5  * Contact:
   6  *   Moonlight List (moonlight-list@lists.ximian.com)
   7  *
   8  * Copyright 2007 Novell, Inc. (http://www.novell.com)
   9  *
  10  * See the LICENSE file included with the distribution for details.
  11  */
  12
  13
  14 #ifndef __UTILS_H__
  15 #define __UTILS_H__
  16
  17 #include <glib.h>
  18 #include <cairo.h>
  19 #include <sys/types.h>
  20
  21 #include "downloader.h"
  22 #include "zip/unzip.h"
  23
  24 G_BEGIN_DECLS
  25
  26 typedef gboolean (*Stream_CanSeek)  (void *handle);
  27 typedef gboolean (*Stream_CanRead)  (void *handle);
  28 typedef gint64   (*Stream_Length)   (void *handle);
  29 typedef gint64   (*Stream_Position) (void *handle);
  30 typedef gint32   (*Stream_Read)     (void *handle,  void *buffer, gint32 offset, gint32 count);
  31 typedef void     (*Stream_Write)    (void *handle,  void *buffer, gint32 offset, gint32 count);
  32 typedef void     (*Stream_Seek)     (void *handle, gint64 offset, gint32 origin);
  33 typedef void     (*Stream_Close)    (void *handle);
  34
  35 struct ManagedStreamCallbacks {
  36         void *handle;
  37         Stream_CanSeek CanSeek;
  38         Stream_CanRead CanRead;
  39         Stream_Length Length;
  40         Stream_Position Position;
  41         Stream_Read Read;
  42         Stream_Write Write;
  43         Stream_Seek Seek;
  44         Stream_Close Close;
  45 };
  46
  47 /* @GeneratePInvoke */
  48 gboolean managed_unzip_stream_to_stream (ManagedStreamCallbacks *source, ManagedStreamCallbacks *dest, const char *partname);
  49
  50 gboolean managed_unzip_extract_to_stream (unzFile zipFile, ManagedStreamCallbacks *dest);
  51
  52 G_GNUC_INTERNAL void g_ptr_array_insert (GPtrArray *array, guint index, void *item);
  53
  54 G_GNUC_INTERNAL void g_ptr_array_insert_sorted (GPtrArray *array, GCompareFunc cmp, void *item);
  55
  56 const char *CanonicalizeFilename (char *filename, int n, bool lower);
  57
  58 bool ExtractFile (unzFile zip, int fd);
  59 bool ExtractAll (unzFile zip, const char *dir, bool lower);
  60
  61 char *MakeTempDir (char *tmpdir);
  62 char *CreateTempDir (const char *filename);
  63
  64 int RemoveDir (const char *dir);
  65
  66 int CopyFileTo (const char *filename, int fd);
  67
  68 int write_all (int fd, char *buf, size_t len);
  69
  70 cairo_t *measuring_context_create (void);
  71 void     measuring_context_destroy (cairo_t *cr);
  72
  73 GArray *double_garray_from_str (const char *s, gint max);
  74
  75 /*
  76  * Returns a pointer to the first token found.
  77  *
  78  * @input: the input string
  79  * @c:     output, upon return contains the first character not in the token.
  80  * @end:   output, upon return contains a pointer to the remaining input (NULL if no more data)
  81  *
  82  * Note: the input string is modified.
  83  */
  84 char *parse_rfc_1945_token (char *input, char *c, char **end);
  85
  86 /*
  87  * Returns a pointer to the unquoted string.
  88  *
  89  * @input: the input string
  90  * @c:     output, upon return contains the first character not in the quoted string.
  91  * @end:   output, upon return contains a pointer to the remaining input (NULL if no more data)
  92  *
  93  * Note: the input string is modified.
  94  */
  95 char *parse_rfc_1945_quoted_string (char *input, char *c, char **end);
  96
  97 G_END_DECLS
  98
  99 class TextStream {
 100  protected:
 101         char buffer[4096];
 102         size_t buflen;
 103         char *bufptr;
 104         GIConv cd;
 105
 106         char *textbuf;
 107         char *textbufptr;
 108         int textbufsize;
 109
 110         int fd;
 111         bool eof;
 112
 113         bool fmode;
 114
 115         bool ReadBOM (bool force);
 116         ssize_t ReadInternal (char *buf, ssize_t n);
 117
 118  public:
 119         TextStream ();
 120         ~TextStream ();
 121
 122         bool OpenBuffer (const char *buf, int size);
 123         bool OpenFile (const char *filename, bool force);
 124         void Close ();
 125
 126         bool Eof ();
 127
 128         ssize_t Read (char *buf, size_t n);
 129 };
 130
 131 typedef void (*CancelCallback) (gpointer user_data, void *context);
 132
 133 class Cancellable {
 134  private:
 135         CancelCallback cancel_cb;
 136         Downloader *downloader;
 137         void *context;
 138  public:
 139         Cancellable ();
 140         ~Cancellable ();
 141
 142         void Cancel ();
 143         void SetCancelFuncAndData (CancelCallback cb, Downloader *user_data, void *context);
 144 };
 145
 146 #endif /* __UTILS_H__ */