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141 lines
2.7 KiB
C
141 lines
2.7 KiB
C
/* $Id: paste.c,v 1.9 2009-09-07 23:48:54 tcunha Exp $ */
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/*
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* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <sys/time.h>
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#include <string.h>
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#include "tmux.h"
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void
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paste_init_stack(struct paste_stack *ps)
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{
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ARRAY_INIT(ps);
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}
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void
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paste_free_stack(struct paste_stack *ps)
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{
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while (paste_free_top(ps) == 0)
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;
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}
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struct paste_buffer *
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paste_walk_stack(struct paste_stack *ps, uint *idx)
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{
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struct paste_buffer *pb;
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pb = paste_get_index(ps, *idx);
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(*idx)++;
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return (pb);
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}
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struct paste_buffer *
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paste_get_top(struct paste_stack *ps)
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{
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if (ARRAY_LENGTH(ps) == 0)
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return (NULL);
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return (ARRAY_FIRST(ps));
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}
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struct paste_buffer *
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paste_get_index(struct paste_stack *ps, u_int idx)
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{
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if (idx >= ARRAY_LENGTH(ps))
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return (NULL);
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return (ARRAY_ITEM(ps, idx));
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}
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int
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paste_free_top(struct paste_stack *ps)
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{
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struct paste_buffer *pb;
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if (ARRAY_LENGTH(ps) == 0)
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return (-1);
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pb = ARRAY_FIRST(ps);
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ARRAY_REMOVE(ps, 0);
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xfree(pb->data);
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xfree(pb);
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return (0);
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}
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int
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paste_free_index(struct paste_stack *ps, u_int idx)
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{
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struct paste_buffer *pb;
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if (idx >= ARRAY_LENGTH(ps))
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return (-1);
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pb = ARRAY_ITEM(ps, idx);
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ARRAY_REMOVE(ps, idx);
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xfree(pb->data);
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xfree(pb);
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return (0);
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}
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void
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paste_add(struct paste_stack *ps, u_char *data, size_t size, u_int limit)
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{
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struct paste_buffer *pb;
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if (*data == '\0')
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return;
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while (ARRAY_LENGTH(ps) >= limit) {
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pb = ARRAY_LAST(ps);
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xfree(pb->data);
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xfree(pb);
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ARRAY_TRUNC(ps, 1);
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}
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pb = xmalloc(sizeof *pb);
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ARRAY_INSERT(ps, 0, pb);
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pb->data = data;
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pb->size = size;
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if (gettimeofday(&pb->tv, NULL) != 0)
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fatal("gettimeofday");
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}
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int
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paste_replace(struct paste_stack *ps, u_int idx, u_char *data, size_t size)
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{
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struct paste_buffer *pb;
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if (idx >= ARRAY_LENGTH(ps))
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return (-1);
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pb = ARRAY_ITEM(ps, idx);
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xfree(pb->data);
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pb->data = data;
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pb->size = size;
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if (gettimeofday(&pb->tv, NULL) != 0)
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fatal("gettimeofday");
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return (0);
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}
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