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Annotation of src/usr.bin/tmux/paste.c, Revision 1.1

1.1     ! nicm        1: /* $OpenBSD$ */
        !             2:
        !             3: /*
        !             4:  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
        !             5:  *
        !             6:  * Permission to use, copy, modify, and distribute this software for any
        !             7:  * purpose with or without fee is hereby granted, provided that the above
        !             8:  * copyright notice and this permission notice appear in all copies.
        !             9:  *
        !            10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
        !            11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
        !            12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
        !            13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
        !            14:  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
        !            15:  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
        !            16:  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            17:  */
        !            18:
        !            19: #include <sys/types.h>
        !            20: #include <sys/time.h>
        !            21:
        !            22: #include <string.h>
        !            23:
        !            24: #include "tmux.h"
        !            25:
        !            26: void
        !            27: paste_init_stack(struct paste_stack *ps)
        !            28: {
        !            29:        ARRAY_INIT(ps);
        !            30: }
        !            31:
        !            32: void
        !            33: paste_free_stack(struct paste_stack *ps)
        !            34: {
        !            35:        while (paste_free_top(ps) == 0)
        !            36:                ;
        !            37: }
        !            38:
        !            39: struct paste_buffer *
        !            40: paste_walk_stack(struct paste_stack *ps, uint *idx)
        !            41: {
        !            42:        struct paste_buffer     *pb;
        !            43:
        !            44:        pb = paste_get_index(ps, *idx);
        !            45:        (*idx)++;
        !            46:        return (pb);
        !            47: }
        !            48:
        !            49: struct paste_buffer *
        !            50: paste_get_top(struct paste_stack *ps)
        !            51: {
        !            52:        if (ARRAY_LENGTH(ps) == 0)
        !            53:                return (NULL);
        !            54:        return (ARRAY_FIRST(ps));
        !            55: }
        !            56:
        !            57: struct paste_buffer *
        !            58: paste_get_index(struct paste_stack *ps, u_int idx)
        !            59: {
        !            60:        if (idx >= ARRAY_LENGTH(ps))
        !            61:                return (NULL);
        !            62:        return (ARRAY_ITEM(ps, idx));
        !            63: }
        !            64:
        !            65: int
        !            66: paste_free_top(struct paste_stack *ps)
        !            67: {
        !            68:        struct paste_buffer     *pb;
        !            69:
        !            70:        if (ARRAY_LENGTH(ps) == 0)
        !            71:                return (-1);
        !            72:
        !            73:        pb = ARRAY_FIRST(ps);
        !            74:        ARRAY_REMOVE(ps, 0);
        !            75:
        !            76:        xfree(pb->data);
        !            77:        xfree(pb);
        !            78:
        !            79:        return (0);
        !            80: }
        !            81:
        !            82: int
        !            83: paste_free_index(struct paste_stack *ps, u_int idx)
        !            84: {
        !            85:        struct paste_buffer     *pb;
        !            86:
        !            87:        if (idx >= ARRAY_LENGTH(ps))
        !            88:                return (-1);
        !            89:
        !            90:        pb = ARRAY_ITEM(ps, idx);
        !            91:        ARRAY_REMOVE(ps, idx);
        !            92:
        !            93:        xfree(pb->data);
        !            94:        xfree(pb);
        !            95:
        !            96:        return (0);
        !            97: }
        !            98:
        !            99: void
        !           100: paste_add(struct paste_stack *ps, char *data, u_int limit)
        !           101: {
        !           102:        struct paste_buffer     *pb;
        !           103:
        !           104:        while (ARRAY_LENGTH(ps) >= limit)
        !           105:                ARRAY_TRUNC(ps, 1);
        !           106:
        !           107:        pb = xmalloc(sizeof *pb);
        !           108:        ARRAY_INSERT(ps, 0, pb);
        !           109:
        !           110:        pb->data = data;
        !           111:        if (gettimeofday(&pb->tv, NULL) != 0)
        !           112:                fatal("gettimeofday");
        !           113: }
        !           114:
        !           115: int
        !           116: paste_replace(struct paste_stack *ps, u_int idx, char *data)
        !           117: {
        !           118:        struct paste_buffer     *pb;
        !           119:
        !           120:        if (idx >= ARRAY_LENGTH(ps))
        !           121:                return (-1);
        !           122:
        !           123:        pb = ARRAY_ITEM(ps, idx);
        !           124:        xfree(pb->data);
        !           125:
        !           126:        pb->data = data;
        !           127:        if (gettimeofday(&pb->tv, NULL) != 0)
        !           128:                fatal("gettimeofday");
        !           129:
        !           130:        return (0);
        !           131: }