5 Author: Pekka Riikonen <priikone@poseidon.pspt.fi>
7 Copyright (C) 1997 - 2000 Pekka Riikonen
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
24 #ifndef SILC_DEBUG /* When we are not doing debugging we use
25 optimized inline buffer functions. */
27 /* Clears and initialiazes the buffer to the state as if it was just
28 allocated by silc_buffer_alloc. */
31 void silc_buffer_clear(SilcBuffer sb)
33 memset(sb->head, 0, sb->truelen);
39 /* Generates copy of a SilcBuffer. This copies everything inside the
40 currently valid data area, nothing more. Use silc_buffer_clone to
41 copy entire buffer. */
44 SilcBuffer silc_buffer_copy(SilcBuffer sb)
48 sb_new = silc_buffer_alloc(sb->len);
49 silc_buffer_pull_tail(sb_new, SILC_BUFFER_END(sb_new));
50 silc_buffer_put(sb_new, sb->data, sb->len);
55 /* Clones SilcBuffer. This generates new SilcBuffer and copies
56 everything from the source buffer. The result is exact clone of
57 the original buffer. */
60 SilcBuffer silc_buffer_clone(SilcBuffer sb)
64 sb_new = silc_buffer_alloc(sb->truelen);
65 silc_buffer_pull_tail(sb_new, SILC_BUFFER_END(sb_new));
66 silc_buffer_put(sb_new, sb->head, sb->truelen);
67 sb_new->data = sb_new->head + (sb->data - sb->head);
68 sb_new->tail = sb_new->data + sb->len;
69 sb_new->len = sb->len;
74 /* Reallocates buffer. Old data is saved into the new buffer. Returns
75 new SilcBuffer pointer. The buffer is exact clone of the old one
76 except that there is now more space at the end of buffer. */
79 SilcBuffer silc_buffer_realloc(SilcBuffer sb, unsigned int newsize)
83 sb_new = silc_buffer_alloc(newsize);
84 silc_buffer_pull_tail(sb_new, SILC_BUFFER_END(sb_new));
85 silc_buffer_put(sb_new, sb->head, sb->truelen);
86 sb_new->data = sb_new->head + (sb->data - sb->head);
87 sb_new->tail = sb_new->data + sb->len;
88 sb_new->len = sb->len;
95 #endif /* !SILC_DEBUG */
99 void silc_buffer_clear(SilcBuffer sb);
100 SilcBuffer silc_buffer_copy(SilcBuffer sb);
101 SilcBuffer silc_buffer_clone(SilcBuffer sb);
102 SilcBuffer silc_buffer_realloc(SilcBuffer sb, unsigned int newsize);